Fixed #2984304. Fix compilation errors reported by gcc 4.5.0.

[dirac-research.git] / ChangeLog

2009-02-10 14:12  asuraparaju

        * win32/VisualStudio/Makefile.am: Include YUV420ItoYUV422I.vcproj
          and YUV422ItoYUV420I.vcproj in list of distribution files.

          Author: Anuradha Suraparaju <anuradha@hoyle.rd.bbc.co.uk>

2009-02-10 14:04  asuraparaju

        * win32/: VS2003/libdirac_common/libdirac_common.vcproj,
          VisualStudio/libdirac_common/libdirac_common.vcproj: Include
          band_codec_template.h in list of headers.

          Author: Anuradha Suraparaju <anuradha@hoyle.rd.bbc.co.uk>

2009-02-10 12:46  asuraparaju

        * libdirac_common/: Makefile.am, band_codec.cpp,
          band_codec_template.cpp, band_codec_template.h, band_vlc.cpp:
          Renamed band_codec_template.cpp to band_codec_template.h

          Author: Anuradha Suraparaju <anuradha@hoyle.rd.bbc.co.uk>

2009-02-10 11:32  asuraparaju

        * ChangeLog: Update ChangeLog

          Author: Anuradha Suraparaju <anuradha@hoyle.rd.bbc.co.uk>

2009-02-10 11:17  asuraparaju

        * NEWS: Include Dirac 1.0.2 release notes.

          Author: Anuradha Suraparaju <anuradha@hoyle.rd.bbc.co.uk>

2009-02-10 11:17  asuraparaju

        * README: Updated notes to reflect API changes. Some cosmetic
          changes as well.

          Author: Anuradha Suraparaju <anuradha@hoyle.rd.bbc.co.uk>

2009-02-10 11:16  asuraparaju

        * configure.ac: Update release id to 1.0.2.

          Author: Anuradha Suraparaju <anuradha@hoyle.rd.bbc.co.uk>

2009-02-10 11:16  asuraparaju

        * AUTHORS: Update contributors list.

          Author: Anuradha Suraparaju <anuradha@hoyle.rd.bbc.co.uk>

2009-02-10 11:04  asuraparaju

        *
          doc/documentation/code/programmers_guide/encoder_data_structs.htm:
          The default wavelet filters used have changed to DD13_7 for both
          intra and inter pictures.

2009-02-10 10:57  asuraparaju

        *
          doc/documentation/code/programmers_guide/encoder_data_structs.htm:
          Fix instrumentation structure documentation. The field names have
          changed in the API to be super blocks and not macro blocks.

2009-02-09 20:45  asuraparaju

        * tests/samples.at: Remove test for full_search option. Add test
          for modified block sizes.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.rd.bbc.co.uk>

2009-02-09 20:44  asuraparaju

        * libdirac_common/band_vlc.h: Fix GCC 4.1.2 warning.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.rd.bbc.co.uk>

2009-01-21 16:23  asuraparaju

        * decoder/decmain.cpp: Actually fix the issue addressed in
          (082d7a2) (ignored result from fwrite)

          Ubuntu forcibly enables FORTIFY_SOURCE, which warns on unused
          return values on fwrite.  This may either be fixed by:  #undef
          _FORTIFY_SOURCE  #define _FORTIFY_SOURCE 0

          Or, by causing the application to exit on a short write.

          NB, it could also be solved by doing a series of fwrites(), and
          checking ferror() at the end of them.  FORTIFY_SOURCE would still
          fail in this case.

          Author: David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:22  asuraparaju

        * decoder/decmain.cpp: fix build error with -Werror and igored
          return value from fwrite(3c)

          It should be noted that the return value from fwrite is mostly
          useless: if the arguments to fwrite do not set size=1, then there
          is little hope of discovering howmuch data had been written
          before the error. C99 states:  If an error occurs, the resulting
          value of the file position  indicator for the stream is
          indeterminate.

          Error squashed by discarding result.

          Author: David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:22  asuraparaju

        * libdirac_encoder/quant_chooser.cpp: encoder: remove limit on DC
          quantizer.

          Previous fixes should remove the requirement to limit qf on DC
          blocks to 4.

          Author: David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:21  asuraparaju

        * libdirac_common/common.cpp: encoder: Ensure that there is atleast
          1 codeblock per subband

          Author: David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:20  asuraparaju

        * libdirac_encoder/picture_compress.cpp: encoder: remove dc
          quantizer=0 hacks

          Fixes in bitstream handling and quant selection should've negated
          the need for these hacks.

          Author: David Flynn <davidf@woaf.net> Committer: David Flynn
          <davidf@rd.bbc.co.uk>

2009-01-21 16:20  asuraparaju

        * libdirac_encoder/picture_compress.cpp: encoder: dont quantize the
          first dc codeblock

          - Attempt to reduce DC errors by effectively not quantizing the
          first   value (predicted from zero).

          Author: David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:19  asuraparaju

        * libdirac_common/common.cpp: encoder: Fix (and increase number of
          ) default codeblocks

          - Fix previously incorrect codeblock calculation - Create 4x4
          codeblocks for DC subband and 12x12 for all others

          Author: David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:18  asuraparaju

        * libdirac_encoder/quant_chooser.cpp: encoder: fix calculation of
          max value in a subband for quant selection

          Author: David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:18  asuraparaju

        * libdirac_byteio/byteio.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h,
          libdirac_common/band_codec_template.cpp,
          libdirac_common/band_vlc.cpp, libdirac_common/band_vlc.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: bandcodec: IntraDCBandVLC
          needs to derive from GenericIntraDCBandCodec

           - modified the band codec files to add a GenericIntraDCBandCodec
          class
             that inherits from the GenericBandCodecClass.
             It defines the common DC specific functions like
          GetPrediction,
             ClearBlock, DecodeCoeffBlock etc.
           - The IntraDCBand classes inherit from the GenericBandCodecClass
          now.
           - modifed the ArithmeticCodecToVLCAdapter class to include the
             Compress/Decompress functions and to have pure virtual
             WorkCode/WorkDecode functions like the ArithCodec class.

          Author: Anuradha Suraparaju <anuradha@rd.bbc.co.uk> Committer:
          David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:17  asuraparaju

        * libdirac_byteio/byteio.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h,
          libdirac_common/band_codec_template.cpp,
          libdirac_common/band_vlc.cpp, libdirac_common/band_vlc.h:
          bandcodec: Remove code duplication in band_vlc.cpp

          BandVLC + friends is mostly a copy and paste of BandCodec +
          friends.   - Rename BandCodec to GenericBandCodec   - Template
          GenericBandCodec to take some EntropyCoder   - typedef BandCodec
          to be GenericBandCodec with ArithCodec   - implement a translator
          for ArithCodec style calls -> VLC ByteIO calls.   - derive
          BandVLC from GenericBandCodec and above translator.

          Author: David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:16  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: bandcodec: fix DC
          prediction when decoding

          Author: Anuradha Suraparaju <anuradha@rd.bbc.co.uk> Committer:
          David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:16  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: bandcodec: fix
          handling intra dc skipped codeblocks

          - The error(residue) term for a skipped codeblock is zero   This
          must be recorded to correctly set nhood_zero for subsequent
          blocks - The values in the skipped codeblock must be predicted
          with no   (ie zero) error term being added.

          Author: David Flynn <davidf@rd.bbc.co.uk> Committer: David Flynn
          <davidf@woaf.net>

2009-01-21 16:15  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: bandcodec: fix
          IntraDC bitstream incompatability with codeblocks

           - Fixes bitstream incompatability with codeblocks
           - IntraDCBandCodec duplicated too much copy+paste code from
          BandCodec.
           - Implements a per pixel function call to provide
          specialization.
             This could be templated if performance really is an issue.

          Author: David Flynn <davidf@rd.bbc.co.uk> Committer: David Flynn
          <davidf@woaf.net>

2009-01-21 16:15  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: bandcodec:
          eliminate sepcialized lfbandcodec

          - Fixes bitstream incompatability with codeblocks -
          Specialization has been moved into bandcodec.    due to too much
          copy and paste code duplication.

          Author: David Flynn <davidf@rd.bbc.co.uk>

2009-01-21 16:14  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: bandcodec: remove
          unused variables

          Author: David Flynn <davidf@rd.bbc.co.uk> Committer: David Flynn
          <davidf@woaf.net>

2008-12-16 12:21  asuraparaju

        * libdirac_encoder/rate_control.cpp: Added a condition to stop
          bit-rate overruns.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-12-16 12:19  asuraparaju

        * dirac.pc.in: Include Maths library in link line if required on
          the platform of choice.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.(none)>

2008-12-16 12:19  asuraparaju

        * libdirac_byteio/mvdataelement_byteio.h: Fix doxygen warnings.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.(none)>

2008-12-16 12:18  asuraparaju

        * libdirac_common/band_codec.cpp: Fix problem building with -Werror
          and dumb compilers

          Author: David Flynn <davidf@rd.bbc.co.uk>

2008-11-20 12:05  asuraparaju

        * doc/documentation/code/programmers_guide/:
          common_data_structs.htm, encoder_api_functions.htm,
          encoder_api_overview.htm, encoder_api_reference.htm,
          encoder_data_structs.htm, index.htm, intro.htm: Update the
          programmer's guide for version 1.0.2 of the release.

2008-11-19 15:02  asuraparaju

        * win32/VisualStudio/dirac.sln: Add new projects to the solution
          file.

          Author: Anuradha Suraparaju <anuradha@hoyle.(none)>

2008-11-19 10:28  asuraparaju

        * libdirac_byteio/: seqparams_byteio.cpp, seqparams_byteio.h:
          Manually delete seqparams_byteio.cpp{h} to keep in sync with GIT
          repository.

2008-11-19 10:25  asuraparaju

        * libdirac_common/dirac_types.h,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h: api: Add
          dirac_encoder_pts_offset support, bump version to 1.0.2

          Author: David Flynn <davidf@rd.bbc.co.uk>

2008-11-19 10:25  asuraparaju

        * util/conversion/: Makefile.am, YUV420ItoYUV422I.cpp,
          YUV422ItoYUV420I.cpp: conversion: Add 422 <-> 420 converters for
          interlaced video

          Author: David Flynn <davidf@rd.bbc.co.uk>

2008-11-19 10:19  asuraparaju

        * libdirac_encoder/: picture_compress.cpp, quant_chooser.cpp: Fixed
          bug with DC value being quantised to nothing for plain pictures.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-11-06 15:54  asuraparaju

        * tests/samples.at: Add tests for fullsearch and combined_me
          options.

          Author: Anuradha Suraparaju <anuradha@hoyle.(none)>

2008-11-06 15:53  asuraparaju

        * libdirac_common/: common_types.h, dirac_types.h: Move macros to
          test for the api version to dirac_types.h from common_types.h as
          it is the more appropriate location.

          Author: Anuradha Suraparaju <anuradha@hoyle.(none)>

2008-11-06 15:51  asuraparaju

        *
          win32/VisualStudio/ConversionUtils/YUV420Down2x2/YUV420Down2x2.vcproj:
          Fix include path to prevent compilation errors.

          Author: Anuradha Suraparaju <anuradha@hoyle.(none)>

2008-10-29 13:46  asuraparaju

        * libdirac_motionest/block_match.cpp: Cosmetics - removing trailing
          blanks.

2008-10-29 13:42  asuraparaju

        * encoder/encmain.cpp, libdirac_encoder/prefilter.cpp,
          libdirac_encoder/rate_control.cpp,
          libdirac_encoder/seq_compress.cpp: Ensure that debug info is
          printed to standard out only in verbose mode.  Cosmetics -
          changed tabs to spaces, corrected indentation.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.(none)>

2008-10-29 13:41  asuraparaju

        * libdirac_common/common_types.h: Add macros to test for the api
          version.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.(none)>

2008-10-21 15:55  asuraparaju

        * libdirac_motionest/me_utils.cpp: Fixed bug that caused a divide
          by zero error.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.(none)>

2008-10-21 11:04  asuraparaju

        * libdirac_byteio/parseparams_byteio.cpp: Print a warning to
          standard error if the bitstream version does not match the
          supported version and continue decoding instead of bailing out.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.(none)>

2008-10-21 11:02  asuraparaju

        * configure.ac: Fix test for checking availabliity of libcppunit.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.(none)>

2008-10-20 15:22  asuraparaju

        * libdirac_encoder/picture_compress.cpp: Modify perceptual
          weighting based on the proportion of intra blocks.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-20 15:21  asuraparaju

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/video_format_defaults.cpp: Made 13_7 the default
          wavelet filter for all video.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-20 15:21  asuraparaju

        * libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_encoder/picture_compress.cpp: Allow for adjustable CPD
          scaling.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-20 15:20  asuraparaju

        * libdirac_encoder/seq_compress.h: Added method for keeping track
          of timestamp offset.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-20 15:19  asuraparaju

        * libdirac_common/common.cpp, libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_utils.cpp: Improvements to coding at low
          bit rate and resolution.

          Filter DC blocks field to reduce dc level transitions.  Use
          better bigger block parameters.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-01 15:33  asuraparaju

        * Makefile.am: Set DOC_DIR only if doxygen is installed.

          Author: asuraparaju@diracvideo.org <anuradha@hoyle.(none)>

2008-10-01 11:26  asuraparaju

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/mot_comp.cpp,
          libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/picture_decompress.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/enc_picture.cpp, libdirac_encoder/enc_picture.h,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp,
          unit_tests/motion_comp_test.cpp,
          util/instrumentation/process_sequence.cpp,
          util/instrumentation/libdirac_instrument/overlay.cpp: Manual sync
          with dirac-research.git repository.  Changed way data for use in
          ME is accessed.  Changed terminology from macroblock to
          superblock.  Now (more) consistent with spec.  Changes to
          incorporate some chroma information into ME.  Enabled combined ME
          across Y, U and V Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-01 10:50  asuraparaju

        * Makefile.am, configure.ac, util/conversion/Makefile.am,
          util/conversion/YUV420Down2x2.cpp: Improved 2x2 downconversion
          filtering.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-01 10:26  asuraparaju

        * encoder/encmain.cpp, libdirac_common/video_format_defaults.cpp:
          100% overlaps help PSNR but reduce detail too much at low rates.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-01 10:26  asuraparaju

        * encoder/encmain.cpp, libdirac_common/video_format_defaults.cpp,
          libdirac_common/video_format_defaults.h,
          libdirac_encoder/dirac_encoder.cpp: Use longer wavelet filters at
          low resolution.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-01 10:25  asuraparaju

        * encoder/encmain.cpp, libdirac_common/band_codec.cpp,
          libdirac_common/common.cpp, libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/quant_chooser.cpp: Modifications to improve
          performance for small picture sizes.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-10-01 10:12  asuraparaju

        * encoder/encmain.cpp: 1/4 pel is now the default on small
          pictures.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-09-16 16:49  asuraparaju

        * ChangeLog: Updated ChangeLog.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>
2008-09-16 14:33  asuraparaju

        * NEWS: Include Dirac 1.0.0 release notes.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-16 14:31  asuraparaju

        * configure.ac: Update release id to 1.0.0

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-16 14:27  asuraparaju

        * README, README.release: Update the README files.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-16 14:23  asuraparaju

        * Makefile.am: Add bootstrap to distribution.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-16 14:02  asuraparaju

        * doc/Makefile.am: Change directory name where doxygen generated
          documentations is installed.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-16 14:02  asuraparaju

        * win32/VisualStudio/Makefile.am: Add YUV420Down2x2.vcproj and
          YUV420pt75filter.vcproj to distribution list.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-16 14:02  asuraparaju

        * libdirac_encoder/picture_compress.cpp: motion_estimate.h is no
          longer in use.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-15 16:34  asuraparaju

        * win32/VS2003/DecodeDirac/DecodeDirac.vcproj: Fix target directory
          name.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-12 12:51  asuraparaju

        * doc/documentation/code/programmers_guide/: decoder_api.htm,
          decoder_api_overview.htm, encoder_api_overview.htm,
          encoder_data_structs.htm, index.htm, intro.htm, overview.htm,
          software.htm, toc.htm: Update documentation for 1.0 release.

2008-09-10 22:32  asuraparaju

        * doc/: dirac_api.doxygen, dirac_api.doxygen.in,
          dirac_api_foot.html, dirac_api_head.html: Sync with git
          repository doc directory structure.

2008-09-10 22:28  asuraparaju

        * libdirac_byteio/mvdata_byteio.h, libdirac_common/motion.h: Fix
          doxygen warnings.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-10 16:37  asuraparaju

        * win32/VisualStudio/: dirac.sln,
          ConversionUtils/YUV420Down2x2/YUV420Down2x2.vcproj,
          ConversionUtils/YUV420pt75filter/YUV420pt75filter.vcproj: Add
          conversion utiliies YUV420Down2x2 and YUV420pt75filter to build
          targets list.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-10 12:10  asuraparaju

        * configure.ac, doc/Makefile.am: Sync with git repository changes.

2008-09-09 21:42  asuraparaju

        * win32/: VS2003/libdirac_motionest/libdirac_motionest.vcproj,
          VisualStudio/libdirac_motionest/libdirac_motionest.vcproj: Remove
          motion_estimat.cpp and motion_estimate.h from the sources list as
          they are no longer used.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-09-03 10:33  asuraparaju

        * libdirac_encoder/rate_control.cpp: Revert "Typo fix."

          This reverts commit a5161a15d0e4f4b0dd9506dc00e52ffe368e6b81.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-09-02 10:51  asuraparaju

        * libdirac_encoder/rate_control.cpp: Typo fix.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-28 09:59  asuraparaju

        * libdirac_encoder/picture_compress.cpp: Use the picture's
          prediction parameters and not the global prediction parameters
          when writing motion vector data header info to the bitstream.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-08-27 11:06  asuraparaju

        * unit_tests/motion_comp_test.cpp: Changes related to the commit
          where picture parameters were separated into a different class
          from the Codec Parameters class.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-08-27 10:22  asuraparaju

        * libdirac_encoder/rate_control.cpp: Modified so as to adapt faster
          at the beginning.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-27 10:20  asuraparaju

        * libdirac_common/motion.h, libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h: Re-enabled adaptive block
          sizes, now a subgroup or so in arrears.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-27 10:18  asuraparaju

        * libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_decoder/picture_decompress.cpp,
          libdirac_encoder/enc_picture.cpp, libdirac_encoder/enc_picture.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/pixel_match.cpp,
          util/instrumentation/libdirac_instrument/overlay.cpp,
          util/instrumentation/process_sequence.cpp: Placed a local copy of
          picture pred params in MvData class.

          This will allow motion parameters to be changed picture by
          picture.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-27 10:17  asuraparaju

        * libdirac_byteio/mvdata_byteio.cpp,
          libdirac_byteio/mvdata_byteio.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_decoder/picture_decompress.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h, libdirac_motionest/Makefile.am,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h: Separated off picture
          prediction parameters.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-25 13:15  asuraparaju

        * libdirac_common/video_format_defaults.cpp,
          libdirac_encoder/seq_compress.cpp: Set default MV precision back
          to 1/2. Also turned off 100% overlap.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-20 22:03  asuraparaju

        * libdirac_byteio/byteio.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h, libdirac_common/band_vlc.cpp,
          libdirac_common/band_vlc.h: Fix bug in handling skipped code
          blocks in DC bands when decoding. Also fix bug in calculating the
          quantiser index in multiple quantiser mode for DC sub-bands in
          Intra pictures.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-08-14 12:35  asuraparaju

        * util/conversion/: Makefile.am, YUV420pt75filter.cpp: Added filter
          for horizontal 3/4 filtering

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:31  asuraparaju

        * encoder/encmain.cpp: Removed error message.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:30  asuraparaju

        * libdirac_common/mot_comp.h, libdirac_common/mv_codec.h,
          libdirac_encoder/enc_queue.h,
          libdirac_encoder/picture_compress.h,
          libdirac_encoder/quality_monitor.h: Fix doxygen warnings

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-08-14 12:29  asuraparaju

        * libdirac_encoder/seq_compress.cpp: MC now done with 100% overlap
          to improve blockiness at low rates.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:28  asuraparaju

        * libdirac_encoder/: picture_compress.cpp, prefilter.cpp: Refined
          diagonal prefiltering for 1080 coding.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:27  asuraparaju

        * encoder/encmain.cpp: Frame skipping now works on pipes, if a bit
          inefficient.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:25  asuraparaju

        * libdirac_encoder/: picture_compress.cpp, prefilter.cpp: Temp fix
          of diagonal bandwidth to 50%.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:23  asuraparaju

        * libdirac_common/mot_comp.cpp, libdirac_encoder/seq_compress.cpp:
          Fixed bug with reference being retired too early.

          A P/L1 picture was being retired too early when a BBBBBP subgroup
          followed a PPPPPP subgroup.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:22  asuraparaju

        * util/conversion/YUV420Down2x2.cpp: Added clipping to prevent
          overshoots.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:21  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fix bug which causes the
          encoder to crash when encoding Intra-only sequences.  For intra
          sequences we need to insert a sequence header every
          pre-determined number of frames (we use 10). Also all pictures in
          an Intra-only sequence should be Non-ref Intra pictures.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-08-14 12:18  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fixed bug with GOP being
          incorrectly restarted.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:18  asuraparaju

        * libdirac_decoder/Makefile.am: Export symbols to a file.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-08-14 12:17  asuraparaju

        * util/conversion/: Makefile.am, YUV420Down2x2.cpp: Added 2x2
          downconversion routine.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:15  asuraparaju

        * encoder/encmain.cpp, libdirac_common/video_format_defaults.cpp:
          Whitespace fix.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:14  asuraparaju

        * libdirac_encoder/prefilter.cpp: Adjusted diagonal prefiltering to
          be more benign.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:14  asuraparaju

        * libdirac_encoder/rate_control.cpp: Rate of adaption of qf made
          dependent on buffer state.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:13  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: Clean dimensions set to be
          the full picture.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:11  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Adaptive GOP coding now works
          for field coding.

          This is a bit hacky. It would be better to remove the need to
          code fields together and just double the L1 picture separation.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:08  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fixed long-dependency chain
          bug.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:06  asuraparaju

        * libdirac_encoder/: seq_compress.cpp, seq_compress.h: Fixed bug
          with sequence headers being written in the wrong place.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:03  asuraparaju

        * libdirac_encoder/rate_control.cpp: Reduced rate of change of qf
          to improve worst areas.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 12:00  asuraparaju

        * libdirac_encoder/: rate_control.cpp, seq_compress.cpp: Rate
          control now works better with adaptive GOP.

          GOP restarts were not being handled correctly.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:59  asuraparaju

        * libdirac_encoder/picture_compress.cpp: Increase quality of
          pictures with more intra blocks.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:58  asuraparaju

        * libdirac_byteio/picture_byteio.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/enc_queue.cpp,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/picture_compress.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h: Fixed bug with instrumentation.
          Intra insertion added back in.

          GOP will restart if a scheduled P picture is Intra.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:56  asuraparaju

        * encoder/encmain.cpp: Fixed so that the encoder can now skip large
          numbers of frames.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:55  asuraparaju

        * libdirac_encoder/: dirac_encoder.cpp, seq_compress.cpp:
          Temporarily disabled instrumentation as it's now buggy.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:49  asuraparaju

        * libdirac_byteio/picture_byteio.cpp, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h,
          libdirac_decoder/picture_decompress.cpp,
          libdirac_encoder/enc_picture.h, libdirac_encoder/enc_queue.cpp,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/picture_compress.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h: Subgroups will now switch to PPP
          coding for difficult sequences.

          The ratio of intra blocks is used to determine whether a P
          picture contains large or poorly matched motions. If so the
          subgroup terminated by that P is switched to all pictures.

          This mod is still buggy.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:47  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fixed bug in CanEncode member
          function for LongGOP sequences which caused frames to be encoded
          twice or skipped.

          Author: asuraparaju@diracvideo.org
          <anuradha@hoyle.dp.rd.bbc.co.uk>

2008-08-14 11:45  asuraparaju

        * libdirac_encoder/: seq_compress.cpp, seq_compress.h: Restart GOP
          whenever a P picture becomes an I picture.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:44  asuraparaju

        * libdirac_encoder/picture_compress.cpp: Increased quality of
          inserted intra pictures.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:44  asuraparaju

        * libdirac_encoder/rate_control.cpp: More aggressive rate
          correction if overshooting.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:43  asuraparaju

        * libdirac_encoder/prefilter.cpp: Set BW range for diagonal
          prefiltering.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:41  asuraparaju

        * libdirac_common/motion.cpp, libdirac_encoder/enc_picture.cpp,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/seq_compress.cpp: Fixed bug with dropping
          references not being properly recorded.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:39  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Temporarily disabled reference
          dropping as it causes decoder crashes.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:38  asuraparaju

        * libdirac_encoder/prefilter.cpp: Diagonal prefilter now has
          variable bandwidth.

          Author: Thomas Davies <thomasd@.(none)>

2008-08-14 11:04  asuraparaju

        * libdirac_common/common.cpp, libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h: Now calculating PSNR
          properly.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:03  asuraparaju

        * libdirac_encoder/: picture_compress.cpp, seq_compress.cpp: Fixed
          bug with changing lambda value. Reference pruning extended to all
          inter pics.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:02  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fixed bug where encoder queue
          was not being pruned.

          Also now retire I pictures after 2 L1 pictures, due to changed
          GOP structure.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:01  asuraparaju

        * libdirac_encoder/picture_compress.cpp: Report intra block
          proportions correctly.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 11:00  asuraparaju

        * libdirac_encoder/: picture_compress.cpp, seq_compress.cpp:
          Encoder will now drop a reference if not useful.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 10:58  asuraparaju

        * libdirac_motionest/: me_mode_decn.cpp, me_utils.cpp, me_utils.h:
          Modified intra selection to use a Haar transform.

          A Haar transform is applied to the difference array after
          subtracting the DC value. This penalises blocks where there is a
          lot of structure, but not blocks which are close to the DC value.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 10:56  asuraparaju

        * libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_encoder/enc_picture.cpp, libdirac_encoder/enc_picture.h:
          Added support for being able to drop a reference from an inter
          picture.

          If it's determined that a reference is unlike the current
          picture, any matches might be accidental and could reduce
          quality. So being able to drop references could be useful.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-08-14 10:51  asuraparaju

        * libdirac_byteio/accessunit_byteio.cpp,
          libdirac_byteio/accessunit_byteio.h,
          libdirac_byteio/dirac_byte_stream.cpp,
          libdirac_byteio/dirac_byte_stream.h, libdirac_common/common.h,
          libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/picture.cpp, libdirac_common/picture.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_common/wavelet_utils_mmx.cpp,
          libdirac_decoder/picture_decompress.cpp,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/enc_picture.cpp, libdirac_encoder/enc_picture.h,
          libdirac_encoder/enc_queue.h,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/picture_compress.h,
          libdirac_encoder/rate_control.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h: New encoder stucture to model
          rate-control approaches.

          Fixed bug with P-only coding.  Added support for switching block
          sizes for pics with lots of intra blocks.  Added another
          complexity metric based on variance of prediction residue.  Added
          intra block ratio to MEData class.  Defined a complexity measure
          based on pel ME SAD values.  Pixel accurate motion estimation
          done using look ahead.  Encoder now preloads a queue of frames.
          Split up motion estimation into tasks within the sequence
          compressor engine.  Separated out prefiltering.  Incorporated
          wavelet coefficient data into Picture class.  Moved subband
          metadata into CoeffArray class.  Further splitting of picture
          coding into subtasks.  Reorganised picture coding into subtasks
          called by sequence compressor.  Fixed bug on updating CBR model
          for field coding.  Changed AccessUnitByteIO to
          SequenceHeaderByteIO for spec consistency.  Fixed bug with motion
          data being incorrectly coded.  Added ME data to the EncPicture
          class.  Fixed unit test for motion compensation.  Renamed
          EncBuffer class as EncQueue class to make Andrea happy.  Fixed
          buffers to be mere wrappers around vectors of pointers. Partially
          fixed unit tests.  Change frame to picture names.  Fixed for
          compatibility with buffer interfaces.  Simplified buffer memory
          management.  Simplified buffer operation for decoder.  Changed
          default qf to 5.5 Synched with cvs for libdirac_decoder Updated
          against current cvs in libdirac_{byteio,common} Changed GOP L1
          refs to reduce "breakthrough" Refactored to use encoder picture
          and encoder buffer classes.  Added classes for encoder pictures
          and specialist buffer.  Simplified picture class.  Refactor to
          make subclassing easier.  Fixed interlace IO errors.  Refactored
          so as to remove encoder-specific methods from picture buffer.
          Modified picbuffer so that decoder solely manages picture params
          and GOP.  Modified makefile for encoder picture class.

          Author: Thomas Davies <thomas.davies@bbc.co.uk>

2008-06-26 20:30  tjdwave

        * doc/latex_spec/: bs-spec.tex, idwt.tex, layout-fullsize.tex,
          quant-matrix.tex, spec-structure.tex: Fixed typos in wavelet
          lifting spec and changed Debuc to Dubuc.

          Also incremented version ready for release.

2008-06-23 20:48  asuraparaju

        * win32/:
          VS2003/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          VisualStudio/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj:
          Add enc_picture.cpp{.h} and enc_queue.cpp{.h} to the sources
          list.

2008-06-20 20:03  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Check that future pictures
          exist in the picture buffer before using them as references for
          the current picture.

2008-06-19 20:39  tjdwave

        * util/instrumentation/libdirac_instrument/: draw_overlay.cpp,
          gm_inliers.cpp, motion_arrows.cpp, motion_colour.cpp,
          motion_colour_arrows.cpp, overlay.cpp, pred_mode.cpp, sad.cpp,
          split_mode.cpp: Fixed instrumentation to comply with new class
          methods.

2008-06-19 20:36  tjdwave

        * unit_tests/: frames_test.cpp, motion_comp_test.cpp: Fixed test to
          conform to class changes.

2008-06-19 20:35  tjdwave

        * libdirac_motionest/: me_mode_decn.cpp, me_mode_decn.h,
          me_subpel.cpp, me_subpel.h, motion_estimate.cpp,
          motion_estimate.h, pixel_match.cpp, pixel_match.h: Fixes due to
          use of EncQueue/EncPicture class. Changed "frame" to "picture"
          terminology.

2008-06-19 20:33  tjdwave

        * libdirac_decoder/: comp_decompress.h, dirac_parser.cpp,
          picture_decompress.cpp, seq_decompress.cpp: Fixes due to changes
          in PictureBuffer and Picture classes.

2008-06-19 20:28  tjdwave

        * libdirac_encoder/: prefilter.cpp, quality_monitor.cpp,
          quality_monitor.h: Mods due to EncQueue/EncPicture class changes.

2008-06-19 20:25  tjdwave

        * libdirac_encoder/: picture_compress.cpp, picture_compress.h:
          Modified for change to EncQueue/EncPicture classes.

2008-06-19 20:22  tjdwave

        * libdirac_encoder/: seq_compress.cpp, seq_compress.h: Moved GOP
          structure determination into this class.

          Also, changed the class so that it used the EncQueue/EncPicture
          classes.

2008-06-19 20:17  tjdwave

        * libdirac_common/: pic_io.cpp, pic_io.h: Refactored to comply with
          changes to Picture class.

2008-06-19 20:14  tjdwave

        * libdirac_common/: common.h, common.cpp: Removed unnecessary
          constructor.

2008-06-19 20:12  tjdwave

        * libdirac_common/: mot_comp.cpp, mot_comp.h: Changed interface.

          Interface changes because EncQueue class is not a subclass of
          PictureBuffer.

2008-06-19 20:10  tjdwave

        * libdirac_common/: picture.cpp, picture.h: Minor refactor to
          remove "redo" metadata.

          The picture buffer deletes and reallocates data now, so we don't
          need to reconfigure/reinitialise a picture. So we can lose the
          tracking metadata.

2008-06-19 20:07  tjdwave

        * libdirac_common/: picture_buffer.cpp, picture_buffer.h:
          Refactored so that the class is a simple wrapper around a vector
          of pointers.

          Removed all the GOP functionality so that it is done in the
          sequence compressor class.

2008-06-19 20:05  tjdwave

        * libdirac_encoder/Makefile.am: Added new files.

2008-06-19 20:02  tjdwave

        * libdirac_encoder/: enc_picture.cpp, enc_picture.h, enc_queue.cpp,
          enc_queue.h: Added classes for encoder picture and encoder
          picture queue.

          The encoder picture subclasses a basic picture and adds original
          data as well as coded data. An encoder queue is a queue of
          encoder pictures, so separate queues/buffers for original and
          motion estimation data are not needed.

2008-06-18 16:00  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/: DiracSplitter.cpp,
          DiracSplitterFile.cpp, DiracSplitterFile.h: Modified the code so
          that the Dirac decoder module of the the filter can connect to
          splitters (e.g. AVI splitter) other than the Dirac splitter. We
          can now play back AVI files containing Dirac muxed with audio.

2008-06-18 11:16  asuraparaju

        * encoder/encmain.cpp: Add command line argument -h or -help to
          display usage info.

2008-06-04 15:39  asuraparaju

        * ChangeLog: [no log message]

2008-06-04 15:33  asuraparaju

        * NEWS: Updated 0.10.0 release notes

2008-06-04 15:32  asuraparaju

        * README.release: Update pre-release checks

2008-06-04 14:48  asuraparaju

        * extras/dirac_dshow/INSTALL: Modify install notes to use the
          supported MS VC++ environment.

2008-06-04 14:46  asuraparaju

        * extras/patches/:
          README_mplayersvn_trunk_revision_26980_dirac-0.10.x_patch,
          mplayersvn_trunk_revision_26980-dirac-0.10.x.patch: Patch to
          enable Dirac decoding support in MPlayer svn revision 26980.

2008-06-03 19:57  tjdwave

        * libdirac_encoder/: rate_control.cpp, seq_compress.cpp,
          seq_compress.h: Fix for low bit rate operation.

          Adaptive block sizes used for high QF values.

2008-06-03 15:10  asuraparaju

        * README, libdirac_common/video_format_defaults.cpp,
          tests/samples.at: Default quality factor that produces medium
          quality output modified to 5.5 from 7.0.

2008-05-30 16:33  asuraparaju

        * ChangeLog: [no log message]

2008-05-30 13:36  asuraparaju

        * NEWS: Included Dirac 0.10.0 release notes

2008-05-30 13:33  asuraparaju

        * extras/patches/: MPlayer-1.0rc2_dirac-0.10.x.patch,
          README_MPlayer-1.0rc2_dirac-0.10.x_patch,
          README_mplayersvn_trunk_revision_26925_dirac-0.10.x_patch,
          mplayersvn_trunk_revision_26925-dirac-0.10.x.patch: New patches
          to enable Dirac 0.10.0 playback using MPlayer.

2008-05-29 16:04  asuraparaju

        * libdirac_common/picture_buffer.cpp: Fix bug in setting the expiry
          time for L1 frames which caused them to be retired before they
          were used as reference frames in the decoder causing the decoder
          to skip frames.

2008-05-29 16:01  asuraparaju

        * tests/samples.at: Add tests for encoding with pre-filtering
          enabled.

2008-05-29 00:25  tjdwave

        * libdirac_common/picture_buffer.cpp: Changed references so that L1
          references are the previous 2 L1 pictures to reduce detail
          "breakthrough".

2008-05-28 12:16  asuraparaju

        * doc/latex_spec/SpecChangeLog: [no log message]

2008-05-28 11:36  asuraparaju

        * tests/samples.at: Add a test for a non-defaut GOP structure.

2008-05-27 13:06  asuraparaju

        * doc/latex_spec/ref-default-videoparams.tex: Fix for bug# 1876987.
          Correct the name of the video format name to CIF.

2008-05-27 12:13  asuraparaju

        * README: Include description of new arguments added to the encoder
          command line.

2008-05-27 11:29  asuraparaju

        * decoder/decmain.cpp, encoder/encmain.cpp,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/common_types.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/wavelet_utils.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/picture_decompress.cpp,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/prefilter.cpp,
          libdirac_encoder/quant_chooser.cpp,
          libdirac_encoder/quant_chooser.h,
          libdirac_motionest/me_utils_mmx.h,
          libdirac_motionest/pixel_match.cpp, unit_tests/arrays_test.cpp,
          unit_tests/arrays_test.h, unit_tests/utmain.cpp,
          util/conversion/RGBtoUYVY.cpp,
          util/conversion/YUV420toYUV422.cpp,
          util/conversion/YUV422toUYVY.cpp,
          util/instrumentation/libdirac_instrument/overlay_symbols.cpp:
          Cosmetic changes. Replace tabs with spaces, replace DOS-style
          line endings with UNIX-style line endings, etc.

2008-05-27 11:28  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: Set pnum in the encoder
          parameters in the encoder handle to -1 when returning the end of
          sequence packet since it is not a picture packet.

2008-05-27 11:10  asuraparaju

        * AUTHORS: Update the email id of the Dirac team of developers.

2008-05-27 11:09  asuraparaju

        * doc/: Makefile.am, dirac_bitstream.txt: dirac_bitstream.txt is
          outdated and no longer required.

2008-05-21 14:00  asuraparaju

        * doc/contact.html: Sync with Dirac Sourceforge website changes.

2008-05-21 14:00  asuraparaju

        * tests/samples.at: Include tests for lossless and constant
          bit-rate bytestreams.

2008-05-21 13:57  asuraparaju

        * doc/documentation/code/programmers_guide/encoder_api_example.htm,
          libdirac_encoder/dirac_encoder.h: Correct the name of the preset
          used to SD576I50 in the encoder API example.

2008-05-21 13:56  asuraparaju

        * libdirac_encoder/: dirac_encoder.cpp, seq_compress.cpp,
          seq_compress.h: Return the Sequence header as a separate packet
          and not preprended to an encoded frame.

2008-05-12 20:49  asuraparaju

        * configure.ac, doc/documentation/Makefile.am: Include conditional
          variables for Support and Publications documentation. These are
          available only when installing from CVS source are not in a
          release.

2008-05-12 16:40  asuraparaju

        * configure.ac, doc/documentation/Makefile.am,
          doc/documentation/publications/Makefile.am,
          doc/documentation/support/Makefile.am: Include support and
          publications directories in install targets.

2008-05-12 15:29  asuraparaju

        * doc/: contact.html, documentation.html, faq.html,
          getting_involved.html, index.html, licences.html, overview.html,
          specification.html: Sync with Sourceforge website changes.
          Include link to licences info.  Change Schroedinger link from
          Sourceforge to www.diracvideo.org.

2008-05-09 18:14  asuraparaju

        * doc/documentation/algorithm/algorithm/: block_data.htm,
          dirac_software_alg0.2.pdf, index.htm, intro.htm, mot_est.htm,
          mv_coding_arch.htm, mv_data_pred.htm, mv_entropy_code.htm,
          olb_mc.xht, overall_arch.htm, quantisation.xht,
          temporal_prediction_structures.htm, transform_coding_arch.htm,
          var_size.htm, wlt_coeff_coding.xht, wlt_transform.xht: Sync with
          Source website changes.

2008-05-09 15:04  asuraparaju

        * doc/documentation/code/programmers_guide/:
          common_data_structs.htm, decoder_api_example.htm,
          decoder_api_functions.htm, decoder_api_overview.htm,
          decoder_api_reference.htm, decoder_data_structs.htm,
          encoder_api_example.htm, encoder_api_functions.htm,
          encoder_api_overview.htm, encoder_api_reference.htm,
          encoder_data_structs.htm, index.htm, intro.htm, software.htm,
          toc.htm: Update programmer's guide to reflect changes to Dirac
          Library API.

2008-05-09 15:00  asuraparaju

        * libdirac_encoder/: dirac_encoder.cpp, dirac_encoder.h: Rename
          field encoded_frame_avail to encoded_picture_avail since the
          encoder API returns frames or fields depending on the the
          picture_coding_mode field in the encoder parameters.

2008-05-08 01:45  tjdwave

        * encoder/encmain.cpp: Removed duplicate option.

2008-05-07 15:47  asuraparaju

        * libdirac_byteio/parseparams_byteio.h, libdirac_common/pic_io.h,
          libdirac_common/picture_buffer.h,
          libdirac_common/video_format_defaults.h,
          libdirac_decoder/comp_decompress.h,
          libdirac_encoder/comp_compress.h: Fix doxygen warnings.

2008-05-06 21:17  asuraparaju

        * win32/VisualStudio/libdirac_common/libdirac_common.vcproj:
          Include dirac_inttypes.h in headers list.

2008-05-06 21:07  asuraparaju

        * win32/VS2003/libdirac_common/libdirac_common.vcproj: Include
          dirac_inttypes.h is headers list.

2008-05-06 21:06  asuraparaju

        *
          win32/VS2003/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj:
          Include prefilter.cpp and prefilter.h to build targets.

2008-05-06 19:51  asuraparaju

        * configure.ac: Visual Studio 2003 environment is no longer part of
          release.

2008-05-06 19:39  asuraparaju

        * README: Modify MSVC++ build environment description to reflect
          the change in the build directory structure.

2008-05-06 19:37  asuraparaju

        * acinclude.m4: Moved this file to m4 directory.

2008-05-06 19:35  asuraparaju

        * Makefile.am, bootstrap, configure.ac, encoder/Makefile.am,
          libdirac_byteio/Makefile.am, libdirac_byteio/dirac_byte_stats.h,
          libdirac_common/Makefile.am, libdirac_common/dirac_inttypes.h,
          libdirac_decoder/Makefile.am, libdirac_encoder/Makefile.am,
          libdirac_encoder/dirac_encoder.h, m4/acinclude.m4,
          m4/ax_create_stdint_h.m4: Use autoconf macro AX_CREATE_STDINT_H
          to create a local stdint file because different versions of gcc
          have the "ISO C9X: 7.18 Integer types" in different header files.
          MS VC++ does not define these types so manually typedef the ones
          used in Dirac (int64_t and uint64_t) to MSVC++ types.

2008-05-06 16:35  asuraparaju

        * win32/VisualStudio/: Makefile.am, dirac.sln,
          ConversionUtils/BMPtoRGB/BMPtoRGB.vcproj,
          ConversionUtils/RGBtoBMP/RGBtoBMP.vcproj,
          ConversionUtils/RGBtoUYVY/RGBtoUYVY.vcproj,
          ConversionUtils/RGBtoYUV411/RGBtoYUV411.vcproj,
          ConversionUtils/RGBtoYUV420/RGBtoYUV420.vcproj,
          ConversionUtils/RGBtoYUV422/RGBtoYUV422.vcproj,
          ConversionUtils/RGBtoYUV444/RGBtoYUV444.vcproj,
          ConversionUtils/UYVYtoRGB/UYVYtoRGB.vcproj,
          ConversionUtils/UYVYtoYUV422/UYVYtoYUV422.vcproj,
          ConversionUtils/YUV411toRGB/YUV411toRGB.vcproj,
          ConversionUtils/YUV420toRGB/YUV420toRGB.vcproj,
          ConversionUtils/YUV420toYUV422/YUV420toYUV422.vcproj,
          ConversionUtils/YUV422toRGB/YUV422toRGB.vcproj,
          ConversionUtils/YUV422toUYVY/YUV422toUYVY.vcproj,
          ConversionUtils/YUV422toYUV420/YUV422toYUV420.vcproj,
          ConversionUtils/YUV444toRGB/YUV444toRGB.vcproj,
          ConversionUtils/libconv_common/libconv_common.vcproj,
          DecodeDirac/DecodeDirac.vcproj, DiracDecoder/DiracDecoder.vcproj,
          DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          DiracEncoder/DiracEncoder.vcproj,
          DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          EncodeDirac/EncodeDirac.vcproj,
          InstrumentDirac/InstrumentDirac.vcproj,
          InstrumentDirac/libdirac_instrument/libdirac_instrument.vcproj,
          libdirac_byteio/libdirac_byteio.vcproj,
          libdirac_common/libdirac_common.vcproj,
          libdirac_motionest/libdirac_motionest.vcproj: Restructure the
          build envirorment. All files (final executables, libraries and
          intermediate files) are built under a directory build. Added
          project files for new conversion utilities.

2008-05-05 12:14  asuraparaju

        * dirac.pc.in: Include libstdc++ is link dependencies.

2008-05-05 11:55  asuraparaju

        * libdirac_common/picture_buffer.cpp: Fix typo in setting expiry
          time for bi-directional L2 reference frames. The correct value is
          2 and not 22.

2008-05-02 16:05  asuraparaju

        * libdirac_decoder/: dirac_cppparser.cpp, dirac_cppparser.h,
          dirac_parser.cpp, seq_decompress.cpp, seq_decompress.h: Fix the
          bug where the decoder went into a permanent loop when some frames
          are missing, possibly due to incomplete frames being received.
          The decoder now carries on decoding the frames it can and returns
          the next frame.

2008-05-02 15:57  asuraparaju

        * libdirac_byteio/: dirac_byte_stream.cpp, dirac_byte_stream.h,
          parseunit_byteio.cpp, parseunit_byteio.h: Fix for bug# 1944681.

2008-05-02 15:49  asuraparaju

        * util/instrumentation/process_sequence.cpp: Fix memory leak
          reported by valgrind when running diagnostics on interlace coded
          Long-GOP sequences.

2008-05-01 19:51  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common_types.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/seq_compress.cpp: Added UHDTV formats.

2008-05-01 19:51  tjdwave

        * libdirac_common/picture_buffer.cpp: Fixed bug with decoder
          looping forever.

2008-04-30 00:09  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/common_types.h,
          libdirac_encoder/Makefile.am, libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/prefilter.cpp, libdirac_encoder/prefilter.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h: Added support for various forms
          of prefiltering.

          Prefiltering using rectangular, diagonal or centre-weighted
          median filtering is now available as a command-line option.
          Rectangular and diagonal low-pass filtering are both adaptive,
          with strength determined by the QF and also a strength parameter
          added on the command line. Centre-weighted median filtering is
          non-adaptive, but adjusts the centre weight according to the
          strength parameter.

          Usage is :

          dirac_encoder ... -prefilter FILTER_NAME n ....

          where FILTER_NAME is one of NO_PF, CWM, RECTLP, DIAGLP and n is
          from 0 to 10.  NO_PF means no prefilter.

2008-04-29 22:27  asuraparaju

        * libdirac_byteio/: dirac_byte_stats.cpp, dirac_byte_stats.h: Fix
          discrepancies between member function declarations in the header
          file and the implementation in the source file.

2008-04-29 22:26  asuraparaju

        * unit_tests/: frames_test.cpp, motion_comp_test.cpp: Reflect
          changes made to PictureParams and PictureBuffer classes.

2008-04-29 18:51  tjdwave

        * encoder/encmain.cpp, libdirac_byteio/codingparams_byteio.cpp,
          libdirac_byteio/component_byteio.cpp,
          libdirac_byteio/component_byteio.h,
          libdirac_byteio/dirac_byte_stats.cpp,
          libdirac_byteio/dirac_byte_stats.h,
          libdirac_byteio/subband_byteio.cpp,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/band_vlc.cpp, libdirac_common/band_vlc.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/mot_comp.cpp, libdirac_common/picture.cpp,
          libdirac_common/picture.h, libdirac_common/picture_buffer.cpp,
          libdirac_common/picture_buffer.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/picture_decompress.cpp,
          libdirac_decoder/picture_decompress.h,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/picture_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_encoder/quant_chooser.cpp,
          libdirac_encoder/seq_compress.cpp: Various refactorings and
          bug-fixes.

          1. Changed how padding is implemented so that padding is only
          added to the coefficient array before the wavelet transform, and
          is removed from the coefficient array immediately after the
          wavelet transform.  No metadata for "OrigXl" etc is needed now.

          2. Various places "frame" is changed to "picture" and "fparams"
          to "pparams" etc.

          3. Fixed bug with misreporting bit rate for long sequences by
          recording data with int64_t not int.

          4. Fixed a bug with perceptual weighting where additional weight
          was being given to the DC band even though it is coded
          losslessly. This threw out weights for the other bands when the
          weights were normalised, especially for intra pictures. In turn
          this required that the relative lambdas used for different
          picture types had to be changed.

          5. Fixed a minor bug with rate control where the intra lambda was
          not being applied correctly.

          6. Changed "field coding" metadata to "picture coding mode"
          metadata throughout, as per spec.

          7. Changed "QIndex" throughout to "QuantIndex" etc for clarity.

          8. Refactored picture coding and decoding to simplify things a
          little.

2008-04-15 19:56  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Roll back previous commit. The
          hack to extract the last locally decoded field does not work.

2008-04-15 16:56  asuraparaju

        * libdirac_common/common.h: Fix typos in ParseParams class which
          cause profile and level member fields to be set incorrectly.

2008-04-15 16:54  asuraparaju

        * util/instrumentation/process_sequence.cpp: Include more debugging
          info in verbose mode. Fixed bug where last few fields in an
          interlaced coded file were not being processed resulting in
          memory leaks being reported by valgrind.

2008-04-15 16:52  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Hack to extract last field
          locally decoded when coding in interlaced mode. Needs a proper
          fix.

2008-04-15 16:50  asuraparaju

        * libdirac_byteio/accessunit_byteio.cpp,
          libdirac_byteio/accessunit_byteio.h,
          libdirac_byteio/parseparams_byteio.cpp,
          libdirac_byteio/parseparams_byteio.h, libdirac_common/common.cpp:
          Upgrade version supported to 2.2. Add checks for profile and
          level as per specification version 2.2.

2008-04-03 21:10  tjdwave

        * doc/latex_spec/: arith.tex, idwt.tex, layout-fullsize.tex,
          picture-dec.tex, profilelevel.tex, sequence-dec.tex,
          wlt-unpacking.tex: Various types and updates.

2008-04-03 18:21  tjdwave

        * doc/latex_spec/bs-spec.tex: Typo.

2008-04-02 02:05  tjdwave

        * doc/latex_spec/bs-spec.tex: More changes a la vc-2

2008-04-02 01:00  tjdwave

        * doc/latex_spec/: bs-spec.tex, dataenc.tex, intro.tex,
          motion-dec.tex, picture-dec.tex, profilelevel.tex,
          sequence-dec.tex, spec-structure.tex, terms.tex,
          video-interface.tex, wlt-unpacking.tex: Further reorganisations a
          la VC-2 spec

2008-04-01 22:47  tjdwave

        * doc/latex_spec/: bs-spec.tex, profilelevel.tex, terms.tex: Typos.

2008-03-14 19:17  asuraparaju

        * encoder/encmain.cpp, libdirac_byteio/byteio.cpp,
          libdirac_byteio/byteio.h, libdirac_byteio/dirac_byte_stats.h,
          libdirac_common/arrays.h, libdirac_common/cmd_line.cpp,
          libdirac_common/motion.h, libdirac_common/wavelet_utils_mmx.cpp,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          util/instrumentation/process_sequence.cpp,
          util/instrumentation/libdirac_instrument/draw_overlay.h,
          util/instrumentation/libdirac_instrument/overlay.h: Fix errors
          and warnings reported by gcc 4.3.0

2008-03-06 19:58  asuraparaju

        * tests/samples.at: Added test for QCIF. Modified instrumentation
          test to ignore standard out.

2008-03-06 19:10  asuraparaju

        * util/instrumentation/process_sequence.cpp: Fix unitialised memory
          read warnings reported by valgrind when processing files coded as
          fields.

2008-03-06 19:04  asuraparaju

        * encoder/encmain.cpp, libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h: Fixed Bug #1874587 where not all
          frames loaded into the encoder were not being processed in Long
          GOP mode. The encoder now processes all frames loaded.  The
          encoder API has also been modified ensure that all encoded frames
          can bre retrieved.

2008-03-05 22:07  asuraparaju

        * libdirac_encoder/picture_compress.cpp: Fix uninitialised memory
          read error reported by valgrind when encoding data losslessly.

2008-03-04 02:08  tjdwave

        * doc/latex_spec/profilelevel.tex: Changed level and profile
          numbers to allow for future vc2 expansion better.

2008-03-04 01:33  tjdwave

        * doc/latex_spec/: bs-spec.tex, conformance.tex, intro.tex,
          layout-fullsize.tex, picture-dec.tex, profilelevel.tex,
          ref-default-videoparams.tex, sequence-dec.tex, state-macros.tex:
          Updates for compatibility with latest version of VC-2. Basic
          profiles and levels added.

          Added UHDTV formats, VC-2 profiles and a Long-GOP profile. Also
          added three levels: unconstrained (0), default for VC-2 (1) and
          default for long-GOP (2).

2008-03-03 21:42  asuraparaju

        * libdirac_byteio/parseunit_byteio.cpp,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_parser.cpp: Fix bug in handling End of
          Sequence parse code where EOS packets other than the last one in
          the stream were not being processed correctly. Schro encoded
          bitstreams can now be decoded fully. Also fixed bug where end of
          sequence parse status was not being returned to the end user
          application.

2008-02-28 23:41  tjdwave

        * doc/latex_spec/: bs-spec.tex, layout-fullsize.tex: Fixed typos.
          Added PDF hyperlinks.

2008-02-28 22:58  tjdwave

        * libdirac_common/common.cpp, libdirac_encoder/rate_control.cpp:
          Introduced small codeblocks and removed cap on qf when coding
          intra-only with CBR

2008-02-27 21:47  asuraparaju

        * libdirac_common/mot_comp.cpp: Fix bug in handling edge blocks.

2008-02-20 00:34  tjdwave

        * encoder/encmain.cpp, libdirac_common/video_format_defaults.cpp:
          Modified default wavelet depth to 4 to prevent overshoots.

2008-02-15 12:47  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fix bug in initialiasing
          entropy factors. Now using transform depth instead of a hardcoded
          value of 4.

2008-02-14 15:59  asuraparaju

        * extras/dirac_dshow/include/moreuuids.h: Replace fourcc
          identifying Dirac video from vcrd to drac to be in line with the
          fourcc used in the ffmpeg patch.

2008-02-14 15:57  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/DiracSplitter.cpp: Changes
          to reflect modified Encoder and Decoder API.

2008-02-14 15:56  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/DiracSplitterFile.cpp: Fix
          bug in handling next and previous offsets in parse unit header.

2008-02-14 12:41  asuraparaju

        * libdirac_byteio/parseparams_byteio.cpp: Modify version checking
          logic so that all minor versions less than the supported minor
          version can be decoder provided the major version is an exact
          match.

2008-02-13 14:36  asuraparaju

        * decoder/decmain.cpp, libdirac_decoder/decoder_types.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_cppparser.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/dirac_parser.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h: Modifications to Decoder API.
          Remove un-implemented functionality (e.g. skip decoding frame).
          The Decoder API now returns the frame number of the frame decoded
          and no other information (e.g. frame type).

2008-02-12 22:03  asuraparaju

        * README: Update notes for building Dirac on MS Windows 2000 and XP
          platforms.

2008-02-12 22:02  asuraparaju

        * win32/: Makefile.am, VS2003/Makefile.am: Build environment for
          Visual C++ 2003 no longer part of the release.

2008-02-12 16:24  asuraparaju

        * win32/VisualStudio/: dirac.sln,
          ConversionUtils/ConversionUtils.vcproj,
          ConversionUtils/BMPtoRGB/BMPtoRGB.vcproj,
          ConversionUtils/RGBtoBMP/RGBtoBMP.vcproj,
          ConversionUtils/RGBtoUYVY/RGBtoUYVY.vcproj,
          ConversionUtils/RGBtoYUV411/RGBtoYUV411.vcproj,
          ConversionUtils/RGBtoYUV420/RGBtoYUV420.vcproj,
          ConversionUtils/RGBtoYUV422/RGBtoYUV422.vcproj,
          ConversionUtils/RGBtoYUV444/RGBtoYUV444.vcproj,
          ConversionUtils/UYVYtoRGB/UYVYtoRGB.vcproj,
          ConversionUtils/YUV411toRGB/YUV411toRGB.vcproj,
          ConversionUtils/YUV420toRGB/YUV420toRGB.vcproj,
          ConversionUtils/YUV422toRGB/YUV422toRGB.vcproj,
          ConversionUtils/YUV444toRGB/YUV444toRGB.vcproj,
          ConversionUtils/libconv_common/libconv_common.vcproj,
          DecodeDirac/DecodeDirac.vcproj, DiracDecoder/DiracDecoder.vcproj,
          DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          DiracEncoder/DiracEncoder.vcproj,
          DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          EncodeDirac/EncodeDirac.vcproj, Everything/Everything.vcproj,
          InstrumentDirac/InstrumentDirac.vcproj,
          InstrumentDirac/libdirac_instrument/libdirac_instrument.vcproj,
          libdirac_byteio/libdirac_byteio.vcproj,
          libdirac_common/libdirac_common.vcproj,
          libdirac_motionest/libdirac_motionest.vcproj: Updated project and
          solution files for Visual Studio 2008 environment. Visual Studio
          2005 build environment is no longer supported.

2008-02-12 03:39  tjdwave

        * doc/latex_spec/SpecChangeLog: Specification ChangeLog added.

2008-02-09 00:57  davidf_

        * libdirac_encoder/dirac_encoder.cpp: Fix change from *frame ->
          *picture with --enable-debug

2008-02-06 10:52  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/DiracSplitter.cpp:
          Modification resulting from changed decoder API stuctures.

2008-02-05 17:32  asuraparaju

        * win32/:
          VS2003/DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          VS2003/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          VS2003/libdirac_byteio/libdirac_byteio.vcproj,
          VS2003/libdirac_common/libdirac_common.vcproj,
          VisualStudio/DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          VisualStudio/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          VisualStudio/libdirac_byteio/libdirac_byteio.vcproj,
          VisualStudio/libdirac_common/libdirac_common.vcproj: Fix project
          files to get rid of compiler warning that resulted from the code
          refactor.

2008-02-05 14:14  asuraparaju

        * unit_tests/: frames_test.cpp, frames_test.h,
          motion_comp_test.cpp, motion_comp_test.h: Fix compiler warning
          resulting from earlier refactoring of code relating to frames and
          fields.

2008-02-05 00:43  tjdwave

        * util/conversion/: Makefile.am, UYVYtoYUV422.cpp,
          YUV420toYUV422.cpp, YUV422toUYVY.cpp, YUV422toYUV420.cpp: Adding
          extra filters to avoid going through RGB for YUV format
          conversions.

2008-02-02 06:52  tjdwave

        * libdirac_common/motion.cpp, libdirac_common/mv_codec.cpp,
          libdirac_encoder/dirac_encoder.cpp: Fixed bug with DC value
          prediction in motion data coding.

2008-02-01 02:20  tjdwave

        * libdirac_encoder/quality_monitor.cpp: Typo.

2008-01-31 22:25  tjdwave

        * decoder/decmain.cpp, encoder/encmain.cpp,
          libdirac_byteio/Makefile.am, libdirac_byteio/component_byteio.h,
          libdirac_byteio/dirac_byte_stream.cpp,
          libdirac_byteio/dirac_byte_stream.h,
          libdirac_byteio/displayparams_byteio.cpp,
          libdirac_byteio/endofsequence_byteio.h,
          libdirac_byteio/frame_byteio.cpp, libdirac_byteio/frame_byteio.h,
          libdirac_byteio/mvdata_byteio.cpp,
          libdirac_byteio/mvdata_byteio.h,
          libdirac_byteio/parseparams_byteio.cpp,
          libdirac_byteio/parseunit_byteio.cpp,
          libdirac_byteio/parseunit_byteio.h,
          libdirac_byteio/picture_byteio.cpp,
          libdirac_byteio/picture_byteio.h,
          libdirac_byteio/transform_byteio.cpp,
          libdirac_byteio/transform_byteio.h, libdirac_common/Makefile.am,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/band_vlc.cpp, libdirac_common/band_vlc.h,
          libdirac_common/bit_manager.cpp, libdirac_common/bit_manager.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/common_types.h,
          libdirac_common/dirac_exception.h, libdirac_common/dirac_types.h,
          libdirac_common/frame.cpp, libdirac_common/frame.h,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/mot_comp.cpp, libdirac_common/mot_comp.h,
          libdirac_common/motion.h, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_common/picture.cpp,
          libdirac_common/picture.h, libdirac_common/picture_buffer.cpp,
          libdirac_common/picture_buffer.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/video_format_defaults.h,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h, libdirac_decoder/Makefile.am,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_cppparser.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/dirac_parser.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/picture_decompress.cpp,
          libdirac_decoder/picture_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h, libdirac_encoder/Makefile.am,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/picture_compress.cpp,
          libdirac_encoder/picture_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_encoder/rate_control.cpp,
          libdirac_encoder/rate_control.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h,
          util/instrumentation/process_sequence.cpp,
          util/instrumentation/process_sequence.h,
          util/instrumentation/libdirac_instrument/draw_overlay.cpp,
          util/instrumentation/libdirac_instrument/draw_overlay.h,
          util/instrumentation/libdirac_instrument/gm_inliers.cpp,
          util/instrumentation/libdirac_instrument/gm_inliers.h,
          util/instrumentation/libdirac_instrument/motion_arrows.cpp,
          util/instrumentation/libdirac_instrument/motion_arrows.h,
          util/instrumentation/libdirac_instrument/motion_colour.cpp,
          util/instrumentation/libdirac_instrument/motion_colour.h,
          util/instrumentation/libdirac_instrument/motion_colour_arrows.cpp,
          util/instrumentation/libdirac_instrument/motion_colour_arrows.h,
          util/instrumentation/libdirac_instrument/overlay.cpp,
          util/instrumentation/libdirac_instrument/overlay.h,
          util/instrumentation/libdirac_instrument/pred_mode.cpp,
          util/instrumentation/libdirac_instrument/pred_mode.h,
          util/instrumentation/libdirac_instrument/sad.cpp,
          util/instrumentation/libdirac_instrument/sad.h,
          util/instrumentation/libdirac_instrument/split_mode.cpp,
          util/instrumentation/libdirac_instrument/split_mode.h: Major
          refactor to make clear the distinction between pictures (frames
          OR fields) and frames or fields specifically. Frame classes have
          been renamed to be Picture classes, along with associated
          metadata. No coding parameters have been changed.

2008-01-31 02:53  tjdwave

        * doc/latex_spec/terms.tex: [no log message]

2008-01-26 23:11  asuraparaju

        * ChangeLog: [no log message]

2008-01-26 23:02  asuraparaju

        * NEWS: Include 0.9.1 release notes.

2008-01-26 22:58  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/stdafx.h: Fix bug where not
          all frame parse codes (e.g. no arith coding intra frames,
          auxiliary data, padding data, etc) were being processes by the
          parsing function.

2008-01-26 22:54  asuraparaju

        * extras/patches/:
          README_ffmpegsvn_trunk_revision_11612-dirac-0.9.x_patch,
          ffmpegsvn_trunk_revision_11612-dirac-0.9.x.patch: Dirac patch for
          FFmpeg svn revision 11612. Fixed bug# 1877990. Applied patch
          supplied with the bug report.  Fixed bug where not all frame type
          (.e.g. no-Arith coding intra frames) were being handled by the
          parser function.

2008-01-26 22:50  asuraparaju

        * extras/patches/: MPlayer-1.0rc2_dirac-0.9.x.patch,
          README_MPlayer-1.0rc2_dirac-0.9.x_patch: Fix bug# 1878017.
          Modified dirac detection technique to auto-detection based on
          extension.  Fixed bug where not all frame types (.e.g
          no-Arith-coding intra frames) were being recognised.

2008-01-26 22:44  asuraparaju

        * libdirac_encoder/rate_control.cpp: Fix bug that caused encoder to
          crash when encoding i-frame only streams in constant bitrate
          mode.

2008-01-26 22:43  asuraparaju

        * libdirac_common/common.cpp: Update supported version to 2.1

2008-01-26 22:42  asuraparaju

        * configure.ac: Update release id to 0.9.1

2008-01-26 22:42  asuraparaju

        * doc/specification.html: Update Dirac Spec link to point to the
          spec release 2.1.0

2008-01-24 22:47  tjdwave

        * README: Fixed incorrect instructions for IP coding.

2008-01-24 21:10  tjdwave

        * doc/latex_spec/abstract.tex, doc/latex_spec/bs-spec.tex,
          doc/latex_spec/intro.tex, doc/latex_spec/layout-fullsize.tex,
          doc/latex_spec/mc.tex,
          doc/latex_spec/ref-default-videoparams.tex,
          doc/latex_spec/state-macros.tex, libdirac_common/mot_comp.cpp:
          Incorrect motion compensation block weighting matrix specified.
          Version moved up to 2.1 for correction. Code updated also.

2008-01-23 12:17  asuraparaju

        * ChangeLog: [no log message]

2008-01-23 12:13  asuraparaju

        * NEWS: Include Dirac 0.9.0 release notes.

2008-01-23 11:42  asuraparaju

        * doc/specification.html: Updated with new information and links to
          released spec docs.

2008-01-23 11:40  asuraparaju

        * doc/todo.html: Update list.

2008-01-23 11:39  asuraparaju

        * doc/licences.html: Fix GNU licences URL.

2008-01-22 22:39  asuraparaju

        * doc/documentation/code/programmers_guide/:
          decoder_api_functions.htm, encoder_api_example.htm,
          encoder_data_structs.htm, index.htm, intro.htm, overview.htm,
          software.htm: Updated for Dirac 0.9.0 api changes.

2008-01-22 18:38  asuraparaju

        * libdirac_byteio/byteio.h, libdirac_encoder/comp_compress.h: Fix
          doxygen warnings

2008-01-22 18:15  asuraparaju

        * configure.ac: Updated Dirac release version to 0.9.0

2008-01-22 18:10  asuraparaju

        * extras/patches/: MPlayer-1.0rc2_dirac-0.9.x.patch,
          README_MPlayer-1.0rc2_dirac-0.9.x_patch,
          README_ffmpegsvn_trunk_revision_11592-dirac-0.9.x_patch,
          ffmpegsvn_trunk_revision_11592-dirac-0.9.x.patch: MPlayer and
          FFmpeg patches for Dirac release 0.9.0

2008-01-22 11:17  asuraparaju

        * libdirac_common/common.cpp: Updated version to 2.0 (major 2 minor
          0) to match version of spec the s/w is compliant with.

2008-01-22 00:32  tjdwave

        * doc/latex_spec/: abstract.tex, intro.tex, layout-fullsize.tex,
          profilelevel.tex: Moved version to 2.0. 1.0=Dirac Pro=Intra only.
          Removed stuff on levels and profiles: now there are just values
          for "undefined".

2008-01-17 23:19  tjdwave

        * doc/latex_spec/wlt-unpacking.tex: Better normative language.

2008-01-17 03:11  tjdwave

        * libdirac_encoder/: quant_chooser.cpp, quant_chooser.h: Improved
          and cleaned up quantiser selection.

2008-01-17 03:09  tjdwave

        * libdirac_common/video_format_defaults.cpp: Set default wavelet
          depth to 5 for better performance.
2008-01-16 21:05  tjdwave

        * doc/latex_spec/mc.tex: Changed spatial weighting matrix to give
          better weights for offset=1.

2008-01-16 21:01  tjdwave

        * libdirac_common/mot_comp.cpp: Changed spatial weighting matrix so
          that weights for offset=1 will be (3,5) rather than (1,7). This
          will reduce blockiness for chroma components.

2008-01-16 13:42  asuraparaju

        * libdirac_byteio/parseunit_byteio.h: Fix bug in test for auxiliary
          data parse unit.

2008-01-15 15:36  asuraparaju

        * doc/documentation/code/programmers_guide/common_data_structs.htm,
          libdirac_byteio/displayparams_byteio.cpp,
          libdirac_byteio/displayparams_byteio.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/common_types.h,
          libdirac_common/dirac_exception.h, libdirac_common/dirac_types.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          util/instrumentation/instrmain.cpp: Spec Compliance -
          nomenclature changes. Rename aspect_ratio to pixel_aspect_ratio,
          sampling_format to chroma_sampling_format.

2008-01-15 11:19  asuraparaju

        * libdirac_byteio/dirac_byte_stream.cpp: Fix bug in handling
          concatenated dirac streams.

2008-01-14 12:22  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/DiracSplitter.vcproj: Fix
          include path and linker flags, and libraries for static-release
          target.

2008-01-11 03:11  tjdwave

        * doc/latex_spec/: motion-dec.tex, spec-structure.tex,
          state-macros.tex, wlt-unpacking.tex: Re-working of motion data
          decoding to use more spec-like language and to conform to the
          style used in VC-2.

2008-01-10 02:42  tjdwave

        * doc/latex_spec/: bs-spec.tex, layout-fullsize.tex, mc.tex,
          motion-dec.tex, spec-conventions.tex, state-macros.tex: Modified
          motion decoding to clarify mode meanings and adopt consistent
          terminology for modes, vectors and global motion parameters.

2008-01-09 23:37  tjdwave

        * doc/latex_spec/arith.tex: Conformed to VC-2 spec.

2008-01-09 22:36  tjdwave

        * doc/latex_spec/mc.tex: Clarified informative note to fix Bug 10.

2008-01-09 22:31  tjdwave

        * doc/latex_spec/: bs-spec.tex, motion-dec.tex: Fixed typos in Bug
          #11

2008-01-09 21:50  asuraparaju

        * libdirac_common/: common.h, mot_comp.cpp, mot_comp.h,
          mot_comp_mmx.cpp, mot_comp_mmx.h: Spec compliance. Modify motion
          compensations functions to comply with latest specification.

2008-01-09 21:48  asuraparaju

        * libdirac_common/video_format_defaults.cpp,
          libdirac_encoder/frame_compress.cpp: Fix bug in setting default
          picture weights and precision. They are now set only in one
          place.

2008-01-09 21:45  asuraparaju

        * libdirac_byteio/: frame_byteio.cpp, mvdata_byteio.cpp: Minor
          corrections to comments.

2008-01-09 21:44  asuraparaju

        * libdirac_byteio/displayparams_byteio.cpp: Fix bug where the
          colour specification defaults were not being set for custom
          specification index 0.

2008-01-09 21:43  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/DiracSplitterFile.cpp:
          Correct interlace field name to source_sampling in the source
          params.

2008-01-09 21:41  asuraparaju

        * win32/: VS2003/libdirac_common/libdirac_common.vcproj,
          VisualStudio/libdirac_common/libdirac_common.vcproj: Include
          band_vlc.h and band_vlc.cpp in sources list to build the target.

2008-01-09 01:50  tjdwave

        * doc/latex_spec/: abstract.tex, arith.tex, bs-spec.tex,
          dataenc.tex, idwt.tex, layout-fullsize.tex, lifting.tex,
          motion-dec.tex, picture-dec.tex, quant-matrix.tex,
          sequence-dec.tex, spec-conventions.tex, spec-structure.tex,
          state-macros.tex, video-interface.tex, vidsys-aspect.tex,
          vidsys-colour.tex, vidsys-colourmatrix.tex,
          vidsys-colourprimaries.tex, vidsys-framerate.tex,
          vidsys-sigrange.tex, vidsys-transfer.tex, wlt-dec.tex,
          wlt-unpacking.tex: Fixed Annex A (Data Encodings) to agree with
          VC-2 spec, including clarification of contexts. Fixed arithmetic
          coding initialisation in motion data decoding.Various tidyings.

2008-01-08 22:46  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex, mc.tex,
          motion-dec.tex, sequence-dec.tex, spec-conventions.tex,
          wlt-unpacking.tex: Cross-reference chasing. Some arithmetic
          coding incompatibilities with VC-2 spec fixed.

2008-01-08 03:12  tjdwave

        * doc/latex_spec/: bs-spec.tex, dataenc.tex, layout-fullsize.tex,
          picture-dec.tex, terms.tex, wlt-unpacking.tex: Fixed some
          cross-reference bugs.

2008-01-07 23:18  tjdwave

        * doc/latex_spec/mc.tex: Fixed bug with sub-pel motion
          compensation. 8th pel should now be correctly spec'd.

2008-01-07 23:17  tjdwave

        * doc/latex_spec/bs-spec.tex: Fixed minor discrepancy over parse
          code with VC-2.

2008-01-03 14:42  asuraparaju

        * libdirac_common/common.cpp, libdirac_common/common_types.h,
          doc/documentation/code/programmers_guide/common_data_structs.htm:
          Minor nomenclature change - rename colour primary enums to match
          spec.

2008-01-03 14:40  asuraparaju

        * libdirac_byteio/parseunit_byteio.h: Spec compliance - Modify
          Auxiliary Data parse code test function as per spec.

2008-01-03 14:39  asuraparaju

        * libdirac_byteio/frame_byteio.cpp: Spec compliance - VLC not
          supported for Inter frames. Modified the error message
          accordingly.

2008-01-03 14:36  asuraparaju

        * README, libdirac_byteio/displayparams_byteio.cpp,
          libdirac_common/dirac_types.h,
          libdirac_encoder/dirac_encoder.cpp, encoder/encmain.cpp: Spec
          Compliance - Field dominance flag (top_field_first) can no longer
          be overridden in the source parameters.

2008-01-02 22:59  tjdwave

        * doc/latex_spec/mc.tex: Minor typo.

2007-12-21 02:04  tjdwave

        * doc/latex_spec/: bs-spec.tex, quant-matrix.tex: Bug fixes.

2007-12-21 01:54  tjdwave

        * doc/latex_spec/: bs-spec.tex, quant-matrix.tex, state-macros.tex:
          Modified quant matrix so that it's calculated from the synthesis
          filters and properly normalised. Changed the scan format part so
          that the top field first flag can't be overridden in the source
          parameters. This is consistent with vc2.

          VC2 now submitted: these should be the last changes to the
          non-motion data except for bug fixes. This part is frozen.

2007-12-14 03:36  tjdwave

        * doc/latex_spec/vidsys.tex: [no log message]

2007-12-14 03:35  tjdwave

        * doc/latex_spec/vidsys.tex: Conformed against VC-2 specification
          version.

2007-12-14 02:15  tjdwave

        * doc/latex_spec/video-interface.tex: Ported text from VC-2 spec.

2007-12-14 01:49  tjdwave

        * libdirac_common/band_vlc.h, libdirac_encoder/rate_control.cpp:
          Fixed g++ 4.1.3 compiler errors.

2007-12-13 21:12  tjdwave

        * doc/latex_spec/mc.tex:
          Fixed bug in block_mc function for bi-directional mode.

2007-12-13 12:56  asuraparaju

        * libdirac_common/common.h: Fix error in PicArray constructor when
          MMX opts are not being used.

2007-12-13 02:27  tjdwave

        * libdirac_encoder/rate_control.cpp: Fixed bug with emergency
          re-allocation: this was throwing out the subgroup frame count.

2007-12-13 01:01  tjdwave

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/quant_chooser.cpp,
          libdirac_encoder/quant_chooser.h,
          libdirac_encoder/rate_control.cpp,
          libdirac_encoder/rate_control.h,
          libdirac_encoder/seq_compress.cpp: Modified rate control. The
          rate control no longer crashes when it inserts intra pictures:
          the picture bits in this case are allocated to the _scheduled_
          picture type. A tentative buffer model has been re-introduced
          whereby the GOP allocation is adapted slowly to reduce
          overshoots, and quickly to reduce undershoots. The buffer target
          occupancy is set to 90%, and once every GOP this is corrected for
          bit rate overshoots, and once every subgroup (i.e. much faster)
          it is corrected, by a larger amount, for bit rate undershoots. In
          addition, if the bit rate for a particular frame is <50% of the
          target bit rate, an emergency reallocation is applied.

          The frame compressor and sequence compressor classes have been
          re-arranged so that the frame compressor manages quantisation
          selection. This will allow the rate controller to be modified
          with look-ahead, changing QF values ahead of time based on
          estimated bit rate for residuals, as well as on the results of
          motion estimation. At the moment it's still pure feedback
          however.

          Performance on difficult pictures has also been improved by
          increasing the quality of inserted I frames, and increasing the
          premium given to pictures with a large number of intra blocks.

          Quantiser selection has also been tidied a little.

2007-12-12 22:48  tjdwave

        * doc/latex_spec/: bs-spec.tex, layout-fullsize.tex,
          spec-conventions.tex, state-macros.tex, terms.tex: Minor wording
          changes, consistent with VC-2.

2007-12-12 22:17  tjdwave

        * doc/latex_spec/motion-dec.tex: Fixed bug with dc value prediction
          in motion decoding. (Also fixed in code now).

2007-12-12 22:10  tjdwave

        * libdirac_common/mv_codec.cpp: Default DC prediction value should
          be 0. Specification needs updating too.

2007-12-12 03:17  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Fixed bug with calculating
          bit rates for individual GOPs: these were being over-estimated by
          about 10%.

2007-12-11 13:27  asuraparaju

        * README, decoder/decmain.cpp,
          doc/documentation/code/programmers_guide/common_data_structs.htm,
          doc/documentation/code/programmers_guide/encoder_api_example.htm,
          encoder/encmain.cpp, libdirac_byteio/codingparams_byteio.cpp,
          libdirac_byteio/displayparams_byteio.cpp,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/dirac_types.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          util/instrumentation/instrmain.cpp: Spec conformance - Made the
          source scanning format into a uint parameter rather than a
          boolean flag.

2007-12-10 20:24  tjdwave

        * doc/latex_spec/: bs-spec.tex, motion-dec.tex, profilelevel.tex,
          state-macros.tex, vidsys.tex, wlt-unpacking.tex: Made the source
          scanning format into a uint parameter rather than a boolean flag,
          so that we can support other formats than progressive and
          interlaced in future. Fixed Schleef bugs #2 and #3.

2007-12-05 12:42  asuraparaju

        * README,
          doc/documentation/code/programmers_guide/encoder_data_structs.htm,
          encoder/encmain.cpp, libdirac_byteio/codingparams_byteio.cpp,
          libdirac_byteio/codingparams_byteio.h, libdirac_common/common.h,
          libdirac_common/dirac_exception.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/rate_control.cpp,
          libdirac_encoder/seq_compress.cpp, tests/samples.at,
          util/instrumentation/instrmain.cpp: Field coding flag in sequence
          header changed to picture coding flag to comply with spec version
          1.0.0_pre10. The external encoder API has also been modified to
          reflect this change. Note that internally the field coding flag
          is still used until we support picture coding modes other than 0
          (frames) or 1 (fields). Both encoder and decoder libraries will
          return an error if a picture coding mode other than 0 or 1 is
          used.

2007-12-05 12:23  asuraparaju

        * libdirac_common/: band_codec.cpp, band_vlc.cpp: Modify
          calculation of mean of three numbers as per spec.

2007-12-04 02:22  tjdwave

        * doc/latex_spec/: bs-spec.tex, layout-fullsize.tex, mc.tex,
          motion-dec.tex, picture-dec.tex, spec-conventions.tex: More VC-2
          compatability updates. Also, modifed motion compensation to fit
          into 16 bits. Upconverted reference no longer necessary for
          pixel- accurate motion compensation: upconverted ref has size
          2W-1 x 2H-1 so that (even) edge pixels are all derived from
          original data.

2007-11-23 02:19  tjdwave

        * libdirac_common/: upconvert.cpp, upconvert.h, upconvert_mmx.cpp:
          Changed filter to 8 taps with 6 signed bits per tap by
          approximating the original 10 tap, 9 bit filter. The intermediate
          calculations will now fit into 16 bits even for 10 bit input
          data. The new filter causes compression to be up to 0.1dB worse,
          in return for much speedier performance when optimised.

          The MMX version has been removed, but may be reinstated at a
          later date.

2007-11-16 15:54  asuraparaju

        * libdirac_byteio/: accessunit_byteio.h, dirac_byte_stream.cpp:
          Terminology change to match spec - Renamed PU_ACCESS_UNIT to
          PU_SEQ_HEADER.

2007-11-16 15:52  asuraparaju

        * libdirac_common/: band_vlc.cpp, band_vlc.h: New class BandVLC to
          enable entropy coding of entropy data using VLC only.

2007-11-16 15:51  asuraparaju

        * README, encoder/encmain.cpp: New command line argument -use_vlc
          to enable use of VLC for entropy coding of coefficients. VLC of
          coefficients is enabled for i-frame only sequences at the moment.

2007-11-16 15:50  asuraparaju

        * libdirac_byteio/: frame_byteio.cpp, frame_byteio.h: Added support
          for using VLC codes for entropy coding of coefficient data.
          Renamed i/o functions to match spec.

2007-11-16 15:50  asuraparaju

        * libdirac_common/Makefile.am, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/frame_buffer.cpp,
          libdirac_common/frame_buffer.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/seq_compress.cpp,
          doc/documentation/code/programmers_guide/encoder_data_structs.htm,
          tests/samples.at, unit_tests/motion_comp_test.cpp: Added support
          for using VLC codes for entropy coding of coefficient data.

2007-11-16 15:48  asuraparaju

        * libdirac_byteio/accessunit_byteio.cpp,
          libdirac_byteio/byteio.cpp, libdirac_byteio/byteio.h,
          libdirac_byteio/codingparams_byteio.cpp,
          libdirac_byteio/displayparams_byteio.cpp,
          libdirac_byteio/mvdata_byteio.cpp,
          libdirac_byteio/mvdataelement_byteio.cpp,
          libdirac_byteio/parseparams_byteio.cpp,
          libdirac_byteio/parseunit_byteio.cpp,
          libdirac_byteio/parseunit_byteio.h,
          libdirac_byteio/subband_byteio.cpp,
          libdirac_byteio/transform_byteio.cpp,
          libdirac_common/arith_codec.cpp, libdirac_common/arith_codec.h:
          Added functions to support bounded i/o. Renamed i/o functions to
          match spec.

2007-11-12 13:27  asuraparaju

        * libdirac_byteio/frame_byteio.cpp, libdirac_byteio/frame_byteio.h,
          libdirac_common/common.h, libdirac_common/frame_buffer.cpp,
          libdirac_common/frame_buffer.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/seq_compress.cpp: Implement retired picture
          buffer management modifications as per latest spec.  - Only one
          picture is modified at a time.  - Retire only when decoding a
          reference picture.  - Do all retirements at the beginning of a
          picture rather than at the end.

2007-11-12 13:24  asuraparaju

        * libdirac_common/: common.cpp, common_types.h,
          video_format_defaults.cpp: Include (15000, 1001) and (25, 2)
          frame rate presets in the standard frame rates table.

2007-11-12 13:20  asuraparaju

        * decoder/decmain.cpp, libdirac_decoder/dirac_cppparser.cpp:
          Cosmetic changes - all debug info in verbose mode is output to
          standard out and not standard error to keep it consistent with
          rest of code.

2007-11-09 03:46  tjdwave

        * doc/latex_spec/: bs-spec.tex, dataenc.tex, idwt.tex,
          layout-fullsize.tex, lifting.tex, mc.tex, picture-dec.tex,
          ref-default-videoparams.tex, spec-conventions.tex,
          spec-structure.tex, state-macros.tex, terms.tex, vidsys.tex,
          wlt-unpacking.tex: Further compliance modifications with VC-2.
          Reorganisation to simplify motion compensation sections
          (ongoing).

2007-11-07 17:58  asuraparaju

        * encoder/encmain.cpp, util/instrumentation/instrmain.cpp:
          Terminology changes - Renamed video format names as per spec.
          Renamed interlace coding flag to interlaced coding flag as per
          spec. Modified acceptable input values for cformat arg to make it
          clearer as to what the sampling formats supported are. Note that
          the command line arguments have changed as a result of this.

          Fixed bug in writing the instrumentation data header. Interlaced
          coding flag is now written to the instrumentation output so that
          the dirac_instrumentation utility works correctly.

2007-11-07 17:52  asuraparaju

        * libdirac_encoder/: dirac_encoder.cpp, dirac_encoder.h:
          Terminology change - renamed interlace coding flag to interlaced
          coding flag as per spec.  The signal range for all input data is
          set to 8BIT_VIDEO as Dirac currently supports 8 bit data only.

2007-11-07 17:49  asuraparaju

        * README,
          doc/documentation/code/programmers_guide/encoder_data_structs.htm,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/common_types.h,
          libdirac_common/video_format_defaults.cpp, tests/colourbars.at,
          tests/samples.at: Terminology changes - renamed Video format
          names to match spec. Renamed interlace coding flag to interlaced
          coding flag as per spec. Note that command line interface of
          encoder app has changed as a result of these changes.

2007-11-07 17:46  asuraparaju

        * libdirac_byteio/codingparams_byteio.cpp,
          libdirac_byteio/codingparams_byteio.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/rate_control.cpp,
          libdirac_encoder/seq_compress.cpp: Terminology change - renamed
          interlace coding flag to interlaced coding flag as per spec.

2007-11-07 17:39  asuraparaju

        * libdirac_byteio/mvdata_byteio.cpp: Simplified picture prediction
          header as per spec.

2007-11-07 17:37  asuraparaju

        * libdirac_byteio/: frame_byteio.h, parseunit_byteio.h: Modified
          Parse code function definitions as per spec.

2007-11-07 17:35  asuraparaju

        * libdirac_byteio/: accessunit_byteio.h, displayparams_byteio.h:
          Renamed DisplayParamsByteIO class as SourceParamsByteIO.

2007-11-07 17:34  asuraparaju

        * libdirac_byteio/: accessunit_byteio.cpp,
          displayparams_byteio.cpp: Renamed DisplayParamsByteIO class to
          SourceParamsByteIO. Simplified Scan Format i/o changes as per
          spec.

2007-11-06 03:33  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, conformance.tex,
          core-wlt-dec.tex, dataenc.tex, layout-fullsize.tex,
          low-delay.tex, mc.tex, motion-dec.tex, picture-dec.tex,
          profilelevel.tex, ref-default-videoparams.tex, sequence-dec.tex,
          sourcepresets.tex, spec-conventions.tex, spec-structure.tex,
          state-macros.tex, terms.tex, unpack-common.tex,
          video-interface.tex, vidsys.tex, wlt-unpacking.tex: Further
          restructuring and conformance to VC-2 spec. Split off sequence
          decoding from picture decoding. Changed how reference pictures
          are removed from the buffer.

2007-10-11 02:04  tjdwave

        * doc/latex_spec/: bs-spec.tex, idwt.tex, low-delay.tex,
          quant-matrix.tex, ref-default-videoparams.tex, state-macros.tex:
          Fixed wavelet_depth/transform_depth ambiguity.

2007-10-10 22:28  tjdwave

        * doc/latex_spec/bs-spec.tex: Updated interlace spec.

2007-10-10 22:26  tjdwave

        * encoder/encmain.cpp, libdirac_byteio/codingparams_byteio.cpp,
          libdirac_common/common.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/rate_control.cpp,
          libdirac_encoder/seq_compress.cpp: Simplified interlace coding
          parameters as per the spec. Also changed the terminology to
          distinguish between interlace coding and interlaced format.

2007-10-10 18:56  tjdwave

        * libdirac_byteio/transform_byteio.cpp: Changed transform coding so
          that wavelet depth and transform type are always signalled, to
          conform with spec.

2007-10-10 18:30  tjdwave

        * libdirac_byteio/transform_byteio.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/frame_compress.cpp: Changed coding of spatial
          partition, so that if codeblocks are used then the number of
          codeblocks is always coded for each level. This means that the
          "default spatial partition" flag is removed from the code and the
          spec.

2007-10-10 17:51  tjdwave

        * doc/latex_spec/: bs-spec.tex, core-wlt-dec.tex, low-delay.tex,
          mc.tex, motion-dec.tex, picture-dec.tex,
          ref-default-videoparams.tex, sourcepresets.tex,
          spec-conventions.tex, spec-structure.tex, state-macros.tex,
          terms.tex, vidsys.tex: Major changes to get compliance with VC-2
          spec. Work in ongoing.

2007-10-02 20:52  asuraparaju

        * README: Correct the names of the Wavelet filters.

2007-10-02 20:48  asuraparaju

        * doc/documentation.html: Include IBC 2007 documents in list of
          publications.

2007-10-02 20:33  asuraparaju

        * doc/documentation/publications/: dirac-bbc-brochure_Layout-1.pdf,
          dirac-numediabrochure.pdf: IBC 2007 docs

2007-10-02 19:28  asuraparaju

        * extras/patches/:
          README_ffmpegsvn_trunk_revision_10636-dirac-0.8.x_patch,
          ffmpegsvn_trunk_revision_10636-dirac-0.8.x.patch: Patch FFMpeg
          trunk revsion 10636 to enable encoding, decoding and playback of
          Dirac files.

2007-10-01 20:57  asuraparaju

        * ChangeLog: [no log message]


2007-10-01 11:51  asuraparaju

        * configure.ac: Update release version to 0.8.0

2007-10-01 11:48  asuraparaju

        * NEWS: Include 0.8.0 release notes

2007-10-01 11:47  asuraparaju

        * extras/patches/: MPlayer-1.0rc1_dirac-0.8.x.patch,
          README_MPlayer-1.0rc1_dirac-0.8.x_patch,
          README_ffmpegsvn_trunk_revision_10630-dirac-0.8.x_patch,
          ffmpegsvn_trunk_revision_10630-dirac-0.8.x.patch: Mplayer patch
          to play back dirac bytestreams. FFMpeg patch to encode and
          decoder dirac bytestreams.

2007-09-28 16:46  asuraparaju

        * doc/documentation/code/programmers_guide/common_data_structs.htm,
          doc/documentation/code/programmers_guide/encoder_data_structs.htm,
          doc/documentation/code/programmers_guide/index.htm,
          encoder/encmain.cpp, libdirac_byteio/codingparams_byteio.cpp,
          libdirac_byteio/parseparams_byteio.cpp,
          libdirac_byteio/parseunit_byteio.h,
          libdirac_byteio/transform_byteio.cpp, libdirac_common/common.cpp,
          libdirac_common/common_types.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/video_format_defaults.h,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_common/wavelet_utils_mmx.cpp,
          libdirac_encoder/dirac_encoder.cpp: Minor mods to conform to spec
          version 1.0.0.pre9_02

2007-09-26 13:23  asuraparaju

        * libdirac_common/pic_io.h: Fix doxygen warnings

2007-09-26 13:18  asuraparaju

        * encoder/encmain.cpp, libdirac_byteio/codingparams_byteio.cpp,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/mot_comp.cpp, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/rate_control.cpp,
          libdirac_encoder/rate_control.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          util/instrumentation/instrmain.cpp,
          util/instrumentation/process_sequence.cpp: Added support for
          interlaced coding. Changes include refactoring of PicIO classes,
          SequenceCompressor class to handle interlaced coding. Modified
          GOP structure for interlaced coding to code interlaced material
          more efficiently.

2007-09-21 10:00  asuraparaju

        * README: Changes to encoder command line interface and preset
          values.

2007-09-19 12:20  tjdwave

        * doc/latex_spec/arith.tex:
          Changed initial range to be 0xFFFF instead of 0x10000 as per the
          software.

2007-09-19 12:19  tjdwave

        * libdirac_common/: arith_codec.cpp, arith_codec.h:
          Changed intial range to be 0xFFFF instead of 0x10000 on
          suggestion of Dave Schleef. This way the range always stays in 16
          bits.

2007-09-06 14:02  asuraparaju

        * win32/: VS2003/DecodeDirac/DecodeDirac.vcproj,
          VS2003/DiracDecoder/DiracDecoder.vcproj,
          VS2003/DiracEncoder/DiracEncoder.vcproj,
          VS2003/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          VS2003/EncodeDirac/EncodeDirac.vcproj,
          VS2003/InstrumentDirac/InstrumentDirac.vcproj,
          VS2003/InstrumentDirac/libdirac_instrument/libdirac_instrument.vcproj,
          VS2003/libdirac_byteio/libdirac_byteio.vcproj,
          VisualStudio/DecodeDirac/DecodeDirac.vcproj,
          VisualStudio/DiracDecoder/DiracDecoder.vcproj,
          VisualStudio/DiracEncoder/DiracEncoder.vcproj,
          VisualStudio/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          VisualStudio/EncodeDirac/EncodeDirac.vcproj,
          VisualStudio/InstrumentDirac/InstrumentDirac.vcproj,
          VisualStudio/InstrumentDirac/libdirac_instrument/libdirac_instrument.vcproj:
          Included HAVE_MMX in preprocessor macros for all mmx targets.
          This fixed the bug where encoding using mmx builds was crashing.

2007-09-05 14:51  asuraparaju

        * win32/VS2003/DiracEncoder/DiracEncoder.vcproj: Fix typo in
          specifying outour directory for dynamically linked Debug-mmx
          target.

2007-09-05 14:20  asuraparaju

        * doc/documentation/code/programmers_guide/:
          common_data_structs.htm, decoder_api_example.htm,
          decoder_api_functions.htm, decoder_api_overview.htm,
          decoder_api_reference.htm, decoder_data_structs.htm,
          encoder_api_example.htm, encoder_api_functions.htm,
          encoder_api_overview.htm, encoder_api_reference.htm,
          encoder_data_structs.htm, index.htm, intro.htm: Updated the
          programmers guide as per the latest specification.

2007-09-03 15:52  asuraparaju

        * libdirac_common/upconvert.h, libdirac_common/wavelet_utils.h,
          libdirac_encoder/frame_compress.h,
          libdirac_motionest/block_match.h: Fix doxygen warnings

2007-09-03 12:31  asuraparaju

        * decoder/decmain.cpp,
          doc/documentation/code/programmers_guide/common_data_structs.htm,
          doc/documentation/code/programmers_guide/encoder_data_structs.htm,
          encoder/encmain.cpp,
          extras/dirac_dshow/src/diracsplitter/DiracSplitter.cpp,
          extras/dirac_dshow/src/diracsplitter/DiracSplitterFile.cpp,
          libdirac_byteio/Makefile.am,
          libdirac_byteio/accessunit_byteio.cpp,
          libdirac_byteio/accessunit_byteio.h,
          libdirac_byteio/codingparams_byteio.cpp,
          libdirac_byteio/codingparams_byteio.h,
          libdirac_byteio/displayparams_byteio.cpp,
          libdirac_byteio/displayparams_byteio.h,
          libdirac_byteio/frame_byteio.cpp, libdirac_byteio/frame_byteio.h,
          libdirac_byteio/mvdata_byteio.cpp,
          libdirac_byteio/parseunit_byteio.cpp,
          libdirac_byteio/parseunit_byteio.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_cppparser.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/dirac_parser.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h, tests/colourbars.at,
          tests/samples.at, unit_tests/frames_test.cpp,
          unit_tests/motion_comp_test.cpp,
          util/instrumentation/instrmain.cpp,
          util/instrumentation/process_sequence.cpp,
          util/instrumentation/process_sequence.h,
          win32/VS2003/libdirac_byteio/libdirac_byteio.vcproj,
          win32/VisualStudio/libdirac_byteio/libdirac_byteio.vcproj:
          Changes to conform with latest Spec.  - Changes to Access Unit
          Header

2007-09-03 12:30  asuraparaju

        * libdirac_common/: arrays.h, common.cpp, common.h, common_types.h,
          dirac_types.h, frame.cpp, frame.h, frame_buffer.cpp,
          frame_buffer.h, pic_io.cpp, pic_io.h, video_format_defaults.cpp,
          video_format_defaults.h, wavelet_utils.cpp: Changes to conform to
          latest spec - Access Unit Header Changes - New video formats
          supported - Wavelet filter changes.  - Video format default
          values

2007-08-31 14:10  asuraparaju

        * util/instrumentation/libdirac_instrument/: draw_overlay.cpp,
          motion_arrows.cpp, motion_colour.cpp, motion_colour_arrows.cpp,
          overlay.cpp, pred_mode.cpp, sad.cpp, split_mode.cpp: Treat all
          input and intermediate data as bipolar. It is converted to
          unsigned byte when written to the output file.

2007-08-24 17:13  asuraparaju

        * libdirac_common/frame.cpp, libdirac_common/pic_io.cpp,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_motionest/me_utils_mmx.cpp: All the encoded components
          now represent signed integer signals i.e. bipolar signals.

2007-08-23 16:05  tjdwave

        * doc/latex_spec/mc.tex: Changed clipping for motion compensation
          to take account of bipolar signals

2007-08-23 16:02  tjdwave

        * doc/latex_spec/: bs-spec.tex, picture-dec.tex,
          ref-default-videoparams.tex, vidsys.tex: Initial mod to show that
          video signals in Dirac should now be considered bipolar. Clipping
          therefore applies to the range [-2^{N-1}, 2^{N-1}-1]

2007-08-21 13:46  asuraparaju

        * libdirac_common/frame_buffer.cpp,
          libdirac_encoder/seq_compress.cpp: Fix errors reported by
          valgrind where unitialiased data was being read from upconverted
          arrays. The upconverter uses the actual frame dimensions and not
          the padded dimensions whereas the ME engine uses the padded
          dimensions which is resulting in unitialised data reads. The
          motion estimation frame buffer now holds the actual frames rather
          than the padded frames to overcome this problem.

2007-08-21 13:42  asuraparaju

        * libdirac_common/: arrays.h, frame.cpp, frame.h: New functions to
          copy contents of one frame to another without altering the
          dimensions of the destination frame. The destination frame is
          padded with the last true value in the source frame if it is
          bigger than the source frame.

2007-08-13 11:41  tjdwave

        * libdirac_encoder/seq_compress.cpp: Typo.

2007-08-13 11:30  tjdwave

        * libdirac_encoder/seq_compress.cpp: Minor tidy.

2007-08-13 11:30  tjdwave

        * libdirac_encoder/frame_compress.cpp: Removed superfluous SAD test
          in cut detection.

2007-08-13 11:29  tjdwave

        * libdirac_motionest/me_mode_decn.cpp: Changed anti-intra bias to
          10%: i.e. intra only needs to be 10% better in SAD terms to be
          chosen, rather than 20%. This (slightly) improves ME mismatches.

2007-08-07 14:19  tjdwave

        * doc/latex_spec/idwt.tex: Clarified IDWT filtering definition.

2007-08-02 15:22  tjdwave

        * libdirac_motionest/: block_match.cpp, block_match.h,
          pixel_match.cpp, pixel_match.h: Minor simplification of pixel
          matching code.

2007-08-02 15:04  tjdwave

        * doc/latex_spec/bs-spec.tex: Fixed comment over reference picture
          removal. Also fixed typo in pseudocode.

2007-07-31 16:21  tjdwave

        * libdirac_encoder/rate_control.cpp: [no log message]

2007-07-31 16:13  tjdwave

        * libdirac_encoder/: rate_control.cpp, rate_control.h: Bug fixes.
          Fixed problem with int32 overflow with very high bit rates.
          Fixed problem with non-integral frame rates being incorrectly
          set.

2007-07-30 19:40  asuraparaju

        * libdirac_common/motion.cpp: Initialise intra costs and dc arrays
          to prevent uninitialised read error and memory hogging in
          intrumentation utilities.

2007-07-26 13:56  tjdwave

        * libdirac_motionest/me_mode_decn.cpp: Improve Intra mode selection
          routine. Incorrect RDO modelling of mode selection has been
          removed, and intra is only selected if a) motion compensated
          error is not very small, and b) intra gives a substantial SAD
          improvement.

2007-07-26 13:53  tjdwave

        * unit_tests/wavelet_utils_test.cpp: Adapted unit test to support a
          coefficient array being passed to the transform.

2007-07-26 13:49  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Added class to cope with
          array types being different.

2007-07-26 13:47  tjdwave

        * encoder/encmain.cpp: Supports higher wavelet depth when MMX is
          not used.

2007-07-26 13:46  tjdwave

        * libdirac_common/arrays.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_common/wavelet_utils_mmx.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/quant_chooser.cpp,
          libdirac_encoder/quant_chooser.h: Added CoeffType and CoeffArray
          types for wavelet coefficients and arrays of coefficients. For
          MMX optimisation, CoeffType will be short, but otherwise it will
          be int. In this way large wavelet depths can be supported.

2007-07-26 13:39  tjdwave

        * libdirac_encoder/rate_control.cpp: Fixed correct initialisation
          of QF when CBR is used.

2007-07-25 14:26  asuraparaju

        * libdirac_common/common.h: Remove all references to oicturen
          number in access unit.

2007-07-24 16:55  tjdwave

        * doc/latex_spec/: core-wlt-dec.tex, idwt.tex, picture-dec.tex,
          unpack-common.tex: Fixed bugs notified on forum.

2007-07-24 09:32  tjdwave

        * doc/latex_spec/: bs-spec.tex, layout-fullsize.tex: Updated parse
          codes and version number. _pre8 will now be released.

2007-07-18 09:14  tjdwave

        * libdirac_common/: band_codec.cpp, wavelet_utils.cpp: Clarified
          parent-child relationship and context selection. No parent is now
          assigned to the lowest 4 subbands and the context selection just
          depends on the parent value, which is set to zero when there is
          no defined parent band.

2007-07-17 09:46  tjdwave

        * libdirac_common/common.cpp: Fixed bug with 60 fps video.

2007-07-17 09:27  tjdwave

        * doc/latex_spec/: bs-spec.tex, parsediagrams.tex: Bug-fixes.

2007-07-16 16:11  asuraparaju

        * libdirac_byteio/accessunit_byteio.cpp,
          libdirac_byteio/accessunit_byteio.h,
          libdirac_byteio/frame_byteio.cpp, libdirac_byteio/frame_byteio.h,
          libdirac_byteio/parseparams_byteio.cpp,
          libdirac_byteio/parseparams_byteio.h,
          libdirac_byteio/parseunit_byteio.cpp,
          libdirac_byteio/parseunit_byteio.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/dirac_types.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h: Modify Access Unit Header as per
          latest specification. The Parse Parameters in the AU header no
          longer incluse the Picture Number of the 1st frame that follows
          the Access Unit Header.

2007-07-05 15:13  tjdwave

        * doc/latex_spec/: bs-spec.tex, core-wlt-dec.tex, lifting.tex,
          quant-matrix.tex, spec-structure.tex: Removed the AU Picture
          Number, which now serves no purpose. Also added parse code and
          operation for doing intra coding without arithmetic coding.  This
          latter is still to be agreed.

2007-06-21 14:16  tjdwave

        * doc/latex_spec/: lifting.tex, quant-matrix.tex,
          spec-conventions.tex, spec-structure.tex: Added quantisation
          matrices for low delay syntax and informative text on
          quantisation strategies - also an informative annex on Lifting.

2007-06-21 14:13  tjdwave

        * libdirac_encoder/rate_control.cpp: [no log message]

2007-06-21 12:01  tjdwave

        * libdirac_encoder/rate_control.cpp: Experimental rate control for
          intra-only coding. This uses a recursive filter to adjust the
          quality factor. The rate of convergence is adaptive, depending on
          the difference between the actual and target quality, which
          overcomes the usual lag of recursive filtering. When the
          difference is large, convergence is steady. When it is relatively
          small, convergence is very rapid.

2007-06-20 15:42  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h: Added support for full-search
          block matching. This is controlled by using the flag

          -full_search [xr] [yr]

          to do an initial pixel-accurate search in the range
          [-xr,xr]x[-yr,yr].  Sub-pixel refinement is unaffected.

          Mode decision and the standard hierachical block match have been
          slightly changed to improve performance.

2007-06-18 17:05  asuraparaju

        * libdirac_common/wavelet_utils_mmx.cpp: Corrected name of DD9_3
          filter to DD9_5 to be in sync with non-mmx version of this file.

2007-06-18 16:24  tjdwave

        * doc/specification.html, encoder/encmain.cpp,
          libdirac_common/common_types.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/frame_decompress.cpp: Corrected name of DD9_3
          filter to DD9_5. Changed weights for (13,5) to correspond to
          analysis rather than synthesis filter. This seems to give
          slightly better results even with perceptual weighting.

2007-06-18 16:22  tjdwave

        * doc/latex_spec/: bs-spec.tex, idwt.tex, low-delay.tex,
          quant-matrix.tex, ref-default-videoparams.tex,
          spec-structure.tex, state-macros.tex: Added default quantisation
          matrices. Also changed name of DD (9,3) filter to (9,5) filter as
          these are the correct filter lengths.

2007-06-10 17:19  asuraparaju

        * libdirac_decoder/comp_decompress.cpp: Fix unintialised value bug
          reported by valgrind.

2007-06-10 15:00  asuraparaju

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/frame.cpp, libdirac_common/frame_buffer.cpp,
          libdirac_common/frame_buffer.h, libdirac_common/upconvert.cpp,
          libdirac_common/upconvert.h, libdirac_common/upconvert_mmx.cpp,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/seq_compress.cpp, unit_tests/frames_test.cpp,
          unit_tests/motion_comp_test.cpp: Modified FrameParams class to
          include the original frame dimensions in addition to the padded
          (for dwt) dimensions. All operations in the decoder other than
          the inverse wavelet transform are now performed using the
          original frame dimensions.

2007-06-10 14:47  asuraparaju

        * libdirac_byteio/dirac_byte_stream.cpp: Fix memory leak reported
          by valgrind. Minor indentatiion changes.

2007-06-05 11:01  tjdwave

        * doc/latex_spec/: bs-spec.tex, mc.tex: Fixed bug with chroma MV
          scaling so that it now agrees with Dirac and Schro codebase.
          Fixed bug with motion compensation weight factors so that these
          are now correct.

2007-06-05 10:38  davidf_

        * libdirac_common/mot_comp.cpp: Backing out commit 1.34. (chroma mv
          rounding, due to spec change)

2007-06-05 10:08  tjdwave

        * doc/latex_spec/: bs-spec.tex, layout-fullsize.tex, mc.tex: Fixed
          bugs and added clarification for chroma motion vectors.

2007-06-05 09:58  tjdwave

        * doc/specification.html: [no log message]

2007-06-05 09:55  davidf_

        * libdirac_common/mot_comp.cpp: Spec compliance, chroma
          motionvectors should be scaled using round_divide as per 8.5.2.1
          (spec1.0pre7)

2007-06-04 10:58  tjdwave

        * doc/latex_spec/mc.tex: Fixed bug with scaling motion vectors for
          chroma.

2007-06-04 10:56  tjdwave

        * doc/latex_spec/: state-macros.tex, unpack-common.tex: [no log
          message]

2007-06-04 10:55  tjdwave

        * doc/latex_spec/dataenc.tex: Added brace for clarification.

2007-06-04 10:54  tjdwave

        * doc/latex_spec/bs-spec.tex: Fixed minor spec low-delay bug.

2007-05-15 16:32  tjdwave

        * libdirac_encoder/rate_control.cpp: Removed buffer model because
          of performance issues.

2007-05-15 15:54  tjdwave

        * libdirac_encoder/: frame_compress.cpp, frame_compress.h,
          rate_control.cpp, rate_control.h, seq_compress.cpp: Modified
          constant bit-rate operation, so that when a cut is detected the
          long-term qf is used, instead of the current one in the rate
          model.  This has the effect of reducing quality crashes and rate
          explosions.

2007-05-15 13:40  asuraparaju

        * Makefile.am: In addition to the regular targets (all, check,
          valgrind-check), added the following new targets

          make codec  - builds the libraries and encoder and decoder
          utilities

          make codec-check  - builds the libraries and encoder, decoder and
          instrumentation and unit_tests and runs the tests

          make encoder - builds the libs encoder depends on and the encoder

          make decoder - builds the libs decoder depends on and the decoder

          make instrumentation - builds the libraries instrumentation util
          depends on the the instrumentation tool.

          make conversion - builds conversion tool

          make unit_tests- builds libraries and the unit_test tool

          make doc - builds the doc

2007-05-15 13:00  tjdwave

        * libdirac_common/wavelet_utils.cpp: Fixed bug with DC weight being
          set incorrectly.

2007-05-15 10:19  tjdwave

        * libdirac_common/mot_comp.cpp: Added error message if reference
          pictures are not labeled as references.

2007-05-14 13:33  tjdwave

        * doc/latex_spec/: bs-spec.tex, layout-fullsize.tex,
          parsediagrams.tex, unpack-common.tex: Modified parse diagrams to
          give integrated structure. Minor changes to stream parsing to
          agree with the parse diagrams.

2007-05-09 15:35  tjdwave

        * doc/latex_spec/: abstract.tex, bs-spec.tex, conformance.tex,
          core-wlt-dec.tex, dataenc.tex, decoding-ops.tex,
          dirac-concepts.tex, idwt.tex, intro.tex, layout-fullsize.tex,
          low-delay.tex, mc.tex, motion-dec.tex, parsing.tex,
          picture-dec.tex, spec-conventions.tex, spec-structure.tex,
          state-macros.tex, stream-access.tex, terms.tex,
          unpack-common.tex, vidsys.tex, wlt-dec.tex, wlt-unpacking.tex:
          Restructuring to integrate the core and low-delay syntaxes
          properly. Added text from SMPTE VC-2 draft spec.

2007-05-09 15:06  asuraparaju

        * ChangeLog: [no log message]

2007-05-09 14:47  asuraparaju

        * extras/patches/: MPlayer-1.0rc1_dirac-0.7.x.patch,
          README_MPlayer-1.0rc1_dirac-0.7.x_patch,
          README_ffmpegsvn_trunk_revision_8950-dirac-0.7.x_patch,
          ffmpegsvn_trunk_revision_8950-dirac-0.7.x.patch: MPlayer and
          FFmpeg patches for Dirac 0.7.0

2007-05-08 17:17  asuraparaju

        * NEWS, doc/documentation/algorithm/algorithm/index.htm: Included
          note that Algorithm document is out of date.

2007-05-08 13:48  asuraparaju

        * doc/documentation/code/programmers_guide/:
          decoder_api_functions.htm, intro.htm, overview.htm: Changed
          software version to 0.7.0

2007-05-07 13:38  asuraparaju

        * libdirac_common/arith_codec.cpp: Convert DOS-style line breaks to
          Unix-style line breaks.

2007-05-04 14:59  asuraparaju

        * NEWS: Included notes on Release 0.7.0.

2007-05-04 14:12  asuraparaju

        * doc/documentation/code/programmers_guide/:
          encoder_api_functions.htm, encoder_data_structs.htm: Specify the
          link to the Dirac Bytestream Specification and the section that
          defines video format defaults for each preset.

2007-05-04 12:14  asuraparaju

        * doc/specification.html: Updated the specification document link
          to point to the latest spec release.

2007-05-04 11:53  asuraparaju

        * AUTHORS, README, configure.ac: Updated for release 0.7.0

2007-05-03 16:24  tjdwave

        * doc/latex_spec/: dataenc.tex, low-delay.tex: Minor bug-fixes.

2007-05-03 15:42  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: Replace tabs with spaces.
          Print GOP bit-rate statistics to standard output only in verbose
          mode.

2007-05-03 15:39  asuraparaju

        * doc/documentation/code/programmers_guide/:
          common_data_structs.htm, encoder_data_structs.htm, software.htm:
          Document changes to the Encoder API data structures and building
          under the MS Windows Platform.

2007-05-02 17:30  asuraparaju

        * win32/: VS2003/libdirac_byteio/libdirac_byteio.vcproj,
          VisualStudio/libdirac_byteio/libdirac_byteio.vcproj: Include
          mydataelement_byteip.cpp{.h} to source list.

2007-05-02 17:29  asuraparaju

        * libdirac_common/common.cpp: Include inttypes.h to fix g++ 3.3.x
          and icc warnings regrading uint64_t.

2007-05-02 14:10  asuraparaju

        * libdirac_byteio/parseunit_byteio.cpp,
          libdirac_byteio/parseunit_byteio.h,
          libdirac_decoder/dirac_cppparser.cpp: Handle auxiliary/paddaing
          data parse units and low-delay frames. Auxiliary/ padding data
          parse units are ignored by the decoder. When the decoder
          encounters a low-delay frame it exits with an error message.

2007-05-02 09:52  tjdwave

        * libdirac_encoder/comp_compress.cpp: Fixed bug with using
          -multi_quants -lossless : multiquants were being signalled, but
          quantisers for each code block weren't being coded.

2007-05-01 15:51  asuraparaju

        * libdirac_common/band_codec.h, libdirac_encoder/comp_compress.h:
          Fix warnings reported by doxygen when not all parameters to a
          function are documented.

2007-05-01 10:56  tjdwave

        * libdirac_common/wavelet_utils.cpp: Fixed bug in calculating
          subband weighting coefficients: values for compensating filter
          gains were incorrect.

2007-04-30 14:13  tjdwave

        * doc/latex_spec/dataenc.tex: Fixed table warning

2007-04-26 14:56  asuraparaju

        * libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/seq_decompress.cpp: Added new function to
          FrameBuffer to check if  frame is available before using it. This
          is to prevent from trying to dereference a non-existent first
          frame from the buffer. This function is a temporary fix.
          FrameBuffer might need to be re-written to return pointer to a
          frame in the buffer rather than a reference so that the return
          value can be checked for NULL before using it.

2007-04-25 11:49  tjdwave

        * doc/latex_spec/profilelevel.tex: Revised text on levels and
          profiles.

2007-04-24 16:42  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex,
          layout-fullsize.tex, low-delay.tex, sourcepresets.tex,
          spec-conventions.tex, wlt-dec.tex: Removed superfluous parse
          codes and added a parse code for padding data.  Removed reference
          to using_ac and using_mc flags/functions: low-delay syntax is now
          vlc-only, and without motion compensation; core syntax supports
          both motion compensation and arithmetic coding.

2007-04-24 10:35  tjdwave

        * doc/latex_spec/: sourcepresets.tex, state-macros.tex, vidsys.tex:
          Refactored the source parameter appendix to get rid of remaining
          conversion artefacts.

2007-04-23 15:52  tjdwave

        * doc/latex_spec/: bs-spec.tex, dataenc.tex, low-delay.tex,
          sourcepresets.tex, state-macros.tex, vidsys.tex: Fixed reference
          bugs and some typos.

2007-04-23 15:21  tjdwave

        * doc/latex_spec/parsediagrams.tex: Added low delay parse diagrams.

2007-04-23 13:55  tjdwave

        * doc/latex_spec/arith.tex: Fixed bug with flushing arithmetic
          encoder.

2007-04-23 12:52  tjdwave

        * doc/latex_spec/parsediagrams.tex: Corrected motion vector coding
          parse diagrams.

2007-04-19 16:02  asuraparaju

        * configure.ac: Fix bug in setting additional flags in CXXFLAGS to
          flag extra warnings.

2007-04-18 13:28  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex, idwt.tex,
          layout-fullsize.tex, low-delay.tex, motion-dec.tex,
          picture-dec.tex, spec-conventions.tex, vidsys.tex, wlt-dec.tex:
          Incorporated Dave Schleef's comments and bugfixes.

2007-04-17 16:50  tjdwave

        * doc/latex_spec/: layout-fullsize.tex, vidsys.tex: Further update
          to video systems model, covering YCoCg coding and colour
          matrixing etc. YCoCg has been changed to give an additional bit
          to Y so that luma and chroma have the same resolution, to avoid
          confusion.

2007-04-16 17:17  tjdwave

        * doc/latex_spec/: vidsys-colourmatrix.tex, vidsys.tex: Initial
          mods to video systems model to bring it up to date: mostly done
          colour.

2007-04-16 16:42  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex, idwt.tex,
          intro.tex, layout-fullsize.tex, low-delay.tex, motion-dec.tex,
          picture-dec.tex, spec-conventions.tex, state-macros.tex,
          wlt-dec.tex: Removed mention of Y,U and V - instead use Y, C1 and
          C2. Fixed bug with biased rounding in IDWT, and fixed bug with
          ref2 motion vector decoding.

2007-04-16 12:17  tjdwave

        * doc/latex_spec/arith.tex: Finalised informative text on
          arithmetic encoding. Minor bug fixes.

2007-04-11 17:26  asuraparaju

        * libdirac_encoder/comp_compress.cpp: Initialise the multi-quants
          flag and estimated bits for DC band to fix bug where decoder
          output was not matching locally decoded output.

2007-04-11 17:23  asuraparaju

        * libdirac_common/video_format_defaults.cpp,
          libdirac_encoder/seq_compress.cpp: Fix initialisation errors
          reported by valgrind.

2007-04-11 16:28  tjdwave

        * doc/latex_spec/: arith-encoder.tex, arith.tex, bs-spec.tex,
          dataenc.tex, idwt.tex, layout-fullsize.tex, low-delay.tex,
          mc.tex, motion-dec.tex, parsediagrams.tex,
          ref-default-videoparams.tex, sourcepresets.tex,
          spec-structure.tex, state-macros.tex, stream-access.tex,
          wlt-dec.tex: Modified arithmetic coding sections to place the
          arithmetic coding engine in an annex. The AC system now agrees
          with the code, using the LUT update implementation.

          Various compile warnings also fixed.

2007-04-11 15:36  tjdwave

        * libdirac_common/arith_codec.h: Minor cosmetic change to simplify
          symbol decoding and agree with AC theory.

2007-04-11 15:18  tjdwave

        * libdirac_encoder/frame_compress.cpp,
          libdirac_common/mv_codec.cpp: Fixed bug with motion vector coding
          on long sequences.

2007-04-11 09:08  tjdwave

        * decoder/decmain.cpp, encoder/encmain.cpp,
          libdirac_byteio/Makefile.am, libdirac_byteio/mvdata_byteio.cpp,
          libdirac_byteio/mvdata_byteio.h,
          libdirac_byteio/mvdataelement_byteio.cpp,
          libdirac_byteio/mvdataelement_byteio.h, libdirac_common/common.h,
          libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/quality_monitor.cpp: Motion vector data is now
          split into a number of different parts which are coded as
          separate units:

          - Superblock/macroblock splitting mode - Block prediction mode -
          Motion vectors, reference 1, horizontal component - Motion
          vectors, reference 1, vertical component - Motion vectors,
          reference 2, horizontal component - Motion vectors, reference 2,
          vertical component - DC values, Y - DC values, U - DC values, V

          Each is a separate, byte-aligned element with a prefixing length
          code.

          This allows parallel encoding and decoding of these elements,
          especially beneficial in hardware.

          Still TO DO: gather statistics on each of these elements
          separately.

2007-04-11 08:52  tjdwave

        * libdirac_encoder/: comp_compress.cpp, quant_chooser.cpp: Fix to
          stop drift on sequences of still frames: at high rate, DC bands
          were being erroneously skipped, causing a build-up of dc error.
          This fix means that DC bands are always coded losslessly and
          never skipped. Further experiments may be required to see if this
          condition can be relaxed.

2007-04-04 17:00  tjdwave

        * doc/latex_spec/: arith.tex, mc.tex, motion-dec.tex,
          spec-conventions.tex, state-macros.tex: Changed motion data
          coding specification to allow for parallel decoding of motion
          data elements.

          Fixed bugs in arithmetic coding spec - this will be refactored to
          reflect recent code changes soon.

2007-04-04 09:11  tjdwave

        * doc/latex_spec/bs-spec.tex: Fixed the next parse offset and
          previous parse offset to be 4 bytes instead of 3. This is now in
          line with the code.

2007-04-04 09:08  tjdwave

        * doc/latex_spec/wlt-dec.tex: Updated quantisation factors so that
          they represent an integer approximation of 2^{(q/4)+2)} up to
          q=128. Now agrees with code.

2007-04-03 16:29  tjdwave

        * doc/latex_spec/: arith.tex, motion-dec.tex, state-macros.tex,
          wlt-dec.tex: Minor bug-fixes.

2007-04-03 14:06  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/DiracSplitterFile.cpp: Size
          of the parse unit header has increased to 13.

2007-04-03 14:04  asuraparaju

        * tests/samples.at: Define a variable mv_prec to set the motion
          vector precision on the encoder command line. Values is currently
          hardcoded to quarter pixel. Change the value of variable mv_prec
          to run the tests with a different value.

2007-04-03 14:02  asuraparaju

        * libdirac_motionest/motion_estimate.cpp, libdirac_common/common.h:
          Hack to support pixel accurate motion estimation. The pixel
          accurate motion vectors are multipled by 2 and then half-pel
          accurate motion estimation is performed. After ME, he motion
          vectors are divided by 2 to convert them back to pixel accurate
          motion vectors.

2007-04-02 08:58  asuraparaju

        * libdirac_common/arith_codec.cpp: Fix g++ warnings regarding order
          of initialisation of member variables in ArithCodecBase
          constructor.

2007-03-30 18:22  timborer

        * libdirac_common/: arith_codec.cpp, arith_codec.h: Simplified
          probability estimation for arithmetic coding to speed up encoding
          and decoding.  Now the total symbol count is ASSUMED to be a
          function of the current probability. The update is implemented in
          a lookup table for speed. The total symbol count is assumed to be
          16 when probabilit of 0 is 0.5, and assumed to be 256 when prob 0
          is 1.

2007-03-29 17:43  asuraparaju

        * libdirac_byteio/: dirac_byte_stream.cpp,
          endofsequence_byteio.cpp, endofsequence_byteio.h: Fix the bug
          which reported "total bits for sequence" in verbose mode to be
          less than the actual the size (in bits) of the bitstream file
          written to disk.  This was because the number of bytes in the end
          of sequence header was not being included in the total bits for
          the sequence.

2007-03-29 17:07  asuraparaju

        * configure.ac: Include VisualStudio in list of directories to
          generate Makefile in.

2007-03-29 15:08  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am: Fix for bug# 588191.
          Include libdirac_byteio.a in the libraries to be linked with for
          encoder and decoder utilities.

2007-03-28 15:33  asuraparaju

        * win32/Makefile.am: Added VisualStudion to lis of sub directories

2007-03-28 15:31  asuraparaju

        * win32/VisualStudio/: Makefile.am, dirac.sln,
          ConversionUtils/ConversionUtils.vcproj,
          ConversionUtils/BMPtoRGB/BMPtoRGB.vcproj,
          ConversionUtils/RGBtoBMP/RGBtoBMP.vcproj,
          ConversionUtils/RGBtoUYVY/RGBtoUYVY.vcproj,
          ConversionUtils/RGBtoYUV411/RGBtoYUV411.vcproj,
          ConversionUtils/RGBtoYUV420/RGBtoYUV420.vcproj,
          ConversionUtils/RGBtoYUV422/RGBtoYUV422.vcproj,
          ConversionUtils/RGBtoYUV444/RGBtoYUV444.vcproj,
          ConversionUtils/UYVYtoRGB/UYVYtoRGB.vcproj,
          ConversionUtils/YUV411toRGB/YUV411toRGB.vcproj,
          ConversionUtils/YUV420toRGB/YUV420toRGB.vcproj,
          ConversionUtils/YUV422toRGB/YUV422toRGB.vcproj,
          ConversionUtils/YUV444toRGB/YUV444toRGB.vcproj,
          ConversionUtils/libconv_common/libconv_common.vcproj,
          DecodeDirac/DecodeDirac.vcproj, DiracDecoder/DiracDecoder.vcproj,
          DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          DiracEncoder/DiracEncoder.vcproj,
          DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          EncodeDirac/EncodeDirac.vcproj, Everything/Everything.vcproj,
          InstrumentDirac/InstrumentDirac.vcproj,
          InstrumentDirac/libdirac_instrument/libdirac_instrument.vcproj,
          MakeHeader/MakeHeader.vcproj,
          libdirac_byteio/libdirac_byteio.vcproj,
          libdirac_common/libdirac_common.vcproj,
          libdirac_motionest/libdirac_motionest.vcproj: New directory for
          supporting latest MS Visual Studio Env.

2007-03-28 12:05  tjdwave

        * libdirac_encoder/rate_control.cpp: Temporarily disabled buffer
          model conformance.

2007-03-27 17:31  asuraparaju

        *
          win32/VS2003/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj:
          Included rate_control.cpp and rate_control.h in sources list.

2007-03-27 17:29  asuraparaju

        * libdirac_common/: band_codec.cpp, common.cpp, common.h: Fix
          compile warnings and errors in MS Windows build. The max numbe of
          quantisers supported is now 120. Modified code to calculate
          quantisation factor to be compliant with latest version of spec.

2007-03-27 17:26  asuraparaju

        * libdirac_byteio/parseunit_byteio.cpp: [Spec Compliance] The next
          and previous parse unit offsets in the bytestream are now 4 bytes
          each.

2007-03-27 16:20  tjdwave

        * libdirac_common/common.h, libdirac_encoder/rate_control.cpp,
          libdirac_encoder/rate_control.h,
          libdirac_encoder/seq_compress.cpp: Major refactor of rate control
          algorithm. The original algorithm aimed for constant bit rate
          over a single GOP. This tended to be unstable when content
          changed and could cause quality to degrade significantly at the
          end of GOPs in order to attempt to correct for high bit rate at
          the beginning.

          The algorithm has been revised so that a target buffer occupancy
          is aimed for, with the target bit rate set as equal to the mean
          bit rate plus an adjustment factor to steer back to target. Bit
          rate is computed for a subgroup (PBB or IBB) in a very similar
          way, but on a rolling basis rather than a target for a single
          GOP.

          For the moment, a buffer size of 4xbit rate has been selected.
          Fixed buffer sizes may be implemented when levels are specified.

          Buffer overflows (too little bit rate - this is a _decoder_
          buffer model) or underflows (too much bit rate) are indicated by
          warnings in verbose mode.  The buffer occupancy is then limited,
          so that these events are not corrected for at present.

2007-03-26 16:28  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Fixed computation of GOP
          statistics to maintain coded order. GOP is counted as up to just
          before the next scheduled access point (intra frame).

2007-03-26 12:20  asuraparaju

        * libdirac_common/mot_comp.cpp: Weights are now being correctly set
          for edge blocks.  Fixed bug where data outside the picture in the
          block in the bottom right corner was not being ignored.

2007-03-26 11:24  davidf_

        * libdirac_encoder/quant_chooser.cpp: Stop quantizing DC subband at
          all, otherwise chroma error is appearing.  Also includes fix from
          thomasd to look at the whole of the DC subband instead of
          ignoring the first (most important value)

2007-03-23 15:32  asuraparaju

        * libdirac_common/pic_io.cpp, tests/Makefile.am,
          tests/colourbars.at, tests/samples.at,
          util/instrumentation/instrmain.cpp: Changes to keep test scripts
          and instrumentation utility in sync with the altered command
          lines for the encoder, decoder.

2007-03-22 18:27  davidf_

        * ChangeLog, README, decoder/decmain.cpp, encoder/encmain.cpp:
          Altered command line file handling.  a) now support taking input
          from stdin (input specified as '-' or '/dev/stdin').  b) removed
          strange filename extension stripping/appending for primary input
          and output files (locally decoded video and instrumentation are
          outputfilename.{local-dec.yuv,imt}.

2007-03-22 14:48  davidf_

        * libdirac_common/common.h: Temporary fix to stop RateControll
          setting silly QF

2007-03-22 14:45  davidf_

        * libdirac_encoder/frame_compress.cpp: Add some basic diagnostics

2007-03-22 13:12  tjdwave

        * libdirac_encoder/rate_control.cpp: Fixed typo in previous bug
          fix.

2007-03-22 13:04  davidf_

        * libdirac_encoder/rate_control.cpp: Fix overlyeager typecasting.

2007-03-21 11:32  tjdwave

        * libdirac_encoder/: rate_control.cpp, rate_control.h: Adding rate
          control classes.

2007-03-21 11:12  tjdwave

        * README: Added instructions on using CBR encoding.

2007-03-21 11:05  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_encoder/Makefile.am,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h: Added support for CBR encoding.
          This equalises bitrate over a GOP (I frame  to  I frame). It does
          not enforce bit rate, nor does it operate according to a buffer
          model.

          To apply CBR coding, add -targetrate N, where N is the target bit
          rate in Kb/s.

          Precedence: 1) if a quality factor is also set with -qf Q, then
          the value of Q is used as the initial value for the system, but
          CBR is still applied.  2) if -lossless is also set, then lossless
          coding is applied and CBR constraints are ignored.

2007-03-19 16:18  asuraparaju

        * decoder/decmain.cpp, libdirac_byteio/byteio.h,
          libdirac_common/arith_codec.cpp, libdirac_common/arrays.h,
          libdirac_common/band_codec.cpp,
          libdirac_common/dirac_exception.cpp,
          libdirac_common/dirac_exception.h,
          libdirac_common/frame_buffer.cpp,
          libdirac_common/mot_comp_mmx.cpp, libdirac_common/pic_io.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/downconvert_mmx.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_utils_mmx.cpp,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h,
          util/instrumentation/libdirac_instrument/draw_overlay.cpp: Fix
          warnings reported by gcc 4.1.2

2007-03-19 16:18  asuraparaju

        * configure.ac: When compiling using g++, enable warnings in debug
          mode and in optimised mode.  All warnings are flagged as errors
          in both modes of compiling.

2007-03-19 16:16  asuraparaju

        * libdirac_common/: frame.cpp, upconvert_mmx.cpp: Fixed upconvert
          (MMX version) to clip after each filtering operation as per spec
          0.10.4 and to be in sync with the non-MMX version

2007-03-19 15:39  asuraparaju

        * libdirac_decoder/seq_decompress.cpp: Print info to standard
          output only in Verbose mode.

2007-03-19 15:22  davidf_

        * libdirac_common/upconvert_mmx.cpp: Looks like i forgot to commit
          this ages ago.  Correctly round upconverted pixel values

2007-03-19 15:21  davidf_

        * libdirac_common/mot_comp.cpp: Fix old naming of
          superblocks+family in comments

2007-03-19 15:19  davidf_

        * libdirac_common/wavelet_utils.cpp: Useful comment thats been
          sitting in my local copy for ages

2007-03-01 15:32  tjdwave

        * libdirac_decoder/comp_decompress.cpp: Removed reference to
          InitContexts.

2007-03-01 10:38  tjdwave

        * doc/latex_spec/: arith.tex, motion-dec.tex, state-macros.tex,
          wlt-dec.tex: Incorporated changes to arithmetic coding. This is a
          quick hack that may not compile yet. TBC.

2007-03-01 09:24  tjdwave

        * libdirac_common/: arith_codec.h, band_codec.cpp, band_codec.h,
          mv_codec.cpp, mv_codec.h: Changed arithmetic coding again
          slighly. Restored count initialisation to (1,1) and reordered
          probability/count rescaling parts to get a little more compact
          code and greater speed. Tidied band codec and mv codec stuff.

2007-02-28 16:22  tjdwave

        * libdirac_common/: arith_codec.cpp, arith_codec.h, band_codec.cpp,
          band_codec.h, mv_codec.cpp: Modified arithmetic coding for speed,
          incorporating periodic calculation of probabilities. Also removed
          periodic context rescaling, which wasn't really helping
          compression performance, and added to complexity.

2007-02-20 14:06  tjdwave

        * libdirac_common/: arith_codec.cpp, arith_codec.h: Code tidy,
          removing a preponderence of inline functions. Also improved
          renormalisation.

2007-02-20 09:55  tjdwave

        * libdirac_common/: arith_codec.cpp, arith_codec.h: Modified
          renormalisation condition and simplified renormalisation process.
          Renormalisation is now only invoked if the interval is <=1/4 of
          the range.  This means that either the most significant bits of
          low and high are the same, or we have low=0x01... and high =
          0x10.. i.e. a classic straddle.  This reduces the 3-way branch
          condition to a 2-way one. It also means that we can eliminate use
          of the high variable altogether and just use low and range.

2007-02-20 09:39  tjdwave

        * libdirac_common/: arith_codec.cpp, arith_codec.h: Changed
          structure of renormalisation loop to enable optimisation.

2007-02-20 09:24  tjdwave

        * libdirac_common/: arith_codec.h, arith_codec.cpp: Now updating
          range variable on the fly rather than calculating from low and
          high.

2007-02-20 09:21  tjdwave

        * libdirac_common/: arith_codec.cpp, arith_codec.h: Refacactored
          arithmetic coding so that renormalisation is only performed if
          the interval size is <=1/2 (represented by 0x8000 in 16 bits).
          This condition may be further restricted in future, and other
          changes and optimisations will follow. This change makes
          coding/decoding faster and allows for the high code to be
          eliminated. Watch this space.

2007-02-15 16:44  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, layout-fullsize.tex,
          mc.tex, picture-dec.tex, ref-default-videoparams.tex,
          spec-conventions.tex, state-macros.tex: Various bug-fixes and
          readabilty improvements.

2007-02-15 16:41  tjdwave

        * doc/latex_spec/low-delay.tex: Fixed quantiser and length sizes in
          slice header.

2007-02-07 12:03  davidf_

        * libdirac_common/: frame.cpp, upconvert.cpp, upconvert.h: Fixed
          upconvert (non MMX) to:   - perform unbiased rounding as per spec
          0.10.4   - clip after each filtering operation as per spec 0.10.4

2007-02-01 15:28  tjdwave

        * libdirac_common/common.cpp: D'oh! Correct commit.

2007-02-01 15:15  tjdwave

        * libdirac_common/common.cpp: Fixed calculation of quantisation
          factors so that intermediate values don't run out of precision.

2007-01-23 14:18  davidf_

        * libdirac_common/band_codec.cpp: Fixed nhood_zero selection as per
          spec-0.10.4

2007-01-22 15:53  tjdwave

        * doc/latex_spec/mc.tex: Reorganised the text concerning chroma
          scaling for clarity. Chroma scaling for global motion vectors is
          now achieved by scaling the generated luma field rather than
          scaling the generating matrix and vectors. This will change the
          bitstream.

2007-01-22 14:58  tjdwave

        * doc/latex_spec/: bs-spec.tex, mc.tex,
          ref-default-videoparams.tex, state-macros.tex, wlt-dec.tex: Some
          more of Johannes Reinhardt's corrections

2007-01-22 14:20  tjdwave

        * libdirac_common/band_codec.cpp: Changed zero neighbourhood
          context selection so as to comply with specification.

2007-01-22 12:33  tjdwave

        * doc/latex_spec/wlt-dec.tex, libdirac_common/wavelet_utils.cpp:
          Correction to spec so that subband order is raster order for each
          level.

2007-01-22 12:22  tjdwave

        * libdirac_common/wavelet_utils.cpp: Fixed subband order so that it
          is as in the specification.

2007-01-16 12:03  tjdwave

        * doc/latex_spec/wlt-dec.tex: Oops. Undoing last commit.

2007-01-16 11:12  tjdwave

        * doc/latex_spec/wlt-dec.tex: Changed subband decoding order to
          agree with the Dirac software.

2007-01-11 09:42  tjdwave

        * doc/latex_spec/: bs-spec.tex, picture-dec.tex, state-macros.tex:
          Changed spec so that the size of the reference picture buffer is
          determined from the level and profile information rather than
          fixed as 5 pictures.

2007-01-09 14:21  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex, idwt.tex,
          layout-fullsize.tex, mc.tex, spec-conventions.tex, wlt-dec.tex:
          Minor edits and typos. sign() function added amongst other mods.

2007-01-04 13:20  tjdwave

        * doc/latex_spec/: layout-fullsize.tex, motion-dec.tex,
          ref-default-videoparams.tex, state-macros.tex, wlt-dec.tex: Fixed
          JR bugs.

2007-01-03 16:03  tjdwave

        * libdirac_common/wavelet_utils.cpp: Fixed bug with rounding offset
          in non-mmx code.

2007-01-03 10:18  tjdwave

        * doc/latex_spec/mc.tex: Fixed typos.

2007-01-03 08:32  tjdwave

        * doc/latex_spec/idwt.tex: Changed the specification of how wavelet
          filters are adapted at the array edges to match what the Dirac
          code does, which is to use edge extension of the even and odd
          coefficients separately.

2006-12-13 09:10  tjdwave

        * libdirac_encoder/frame_compress.cpp: Fixed bug with unitialised
          cut flag. Changed intra insertion criterion so that a frame is
          made intra if just a third of blocks are intra - this is a better
          bit rate trade-off.

2006-12-05 14:36  tjdwave

        * libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/seq_compress.cpp: Fixed memory leak bug, which
          resulted from the encoder not signalling the discarded reference
          frames correctly. The reference management and FrameBuffer class
          code still need some work to rationalise.

          The decoder still does not support the spec requirement for
          discarding old reference frames if the reference frame buffer
          gets too big. This would prevent memory leaks (at the risk of
          incorrect decoding) if the encoder were to signal reference
          discarding incorrectly in this manner.

2006-12-04 12:00  davidf_

        * doc/faq.html: Fixed markup faults spotted by Peter Shelswell:  -
          Fixed errant <h> tag  - Added <?xml ?> identifier

2006-11-23 16:22  tjdwave

        * encoder/encmain.cpp, libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          util/instrumentation/process_sequence.cpp: Fix for broken
          intrumentation data: obsolete "common" MB mode removed.

          Verbose commentary switched to cout.

2006-11-23 11:00  tjdwave

        * libdirac_decoder/comp_decompress.cpp: Fixed bug with codeblock
          numbers being incorrectly calculated in the decoder.

2006-11-22 14:06  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex, idwt.tex,
          layout-fullsize.tex, low-delay.tex, mc.tex, motion-dec.tex,
          picture-dec.tex, profilelevel.tex, ref-default-videoparams.tex,
          state-macros.tex, stream-access.tex, wlt-dec.tex: Nearly complete
          version of low-delay syntax, at least for intra frames.  Data
          encoding section revised to incorporate "bounded" inputs for vlcs
          as well as for arithmetic encoding, unifying the description.

          More detail on buffering and profiles/levels.

2006-11-22 11:00  tjdwave

        * README, libdirac_common/band_codec.cpp,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/mv_codec.cpp,
          libdirac_common/video_format_defaults.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/seq_compress.cpp: Inserted intra frames are now
          given lower quality than other intra frames so as to match P and
          B frames more closely. Various other minor bug-fixes to remove
          -pedantic compile errors and valgrind error.

2006-11-14 10:59  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h: Added in option for encoder to
          denoise input. Note that PSNR values reported will be for
          denoised values. Denoiser uses a centre-weighted median filter.
          Also applied Johannes Reinhardt's cosmetic patch to the encoder
          to tidy it up.

2006-11-13 14:20  tjdwave

        * doc/latex_spec/wlt-dec.tex: Changed inverse quantisation offset
          so that a value of 0.5*quantisation is used.

2006-11-13 12:28  tjdwave

        * ChangeLog: [no log message]

2006-11-13 09:41  tjdwave

        * libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/quant_chooser.cpp: Changed quantiser offsets to
          be different for Intra and Inter frames, as per the latest draft
          of the spec. Having an offset of 0.5*quantiser for intra frames
          improves performance at high rate, especially iterated coding
          with Dirac Pro apps.

2006-11-09 12:11  tjdwave

        * doc/latex_spec/: arith-encoder.tex, arith.tex,
          layout-fullsize.tex, low-delay.tex, mc.tex, motion-dec.tex,
          profilelevel.tex, spec-conventions.tex, spec-structure.tex,
          wlt-dec.tex: Added more text on the low-delay syntax and decoded
          picture buffer model.  Clarified arithmetic decoding process and
          conventions.

2006-11-09 11:30  tjdwave

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/frame_buffer.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_encoder/quant_chooser.cpp,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp: Overall improvements to
          encoding framework to improve quality for difficult pictures and
          at low bit rates. Changes to the RDO parameters are experimental
          and they may change again.

          - Added test for whether a frame is a B frame or not - Identified
          Layer 1 frames with P frames and Layer 2 with B frames, rather
          than with Inter Ref and Inter Non-ref respectively. This is more
          efficient with the new GOP structure - Modified RDO framework to
          provide correction where there has been ME failure i.e. lots of
          Intra blocks - Slightly increased ME search areas - Corrected the
          frame type parameter for the final B frame in a sequence -
          Changed confusing terminology for costs/errors in quantisation
          factor selection - Added overall PSNR stats for a sequence for
          performance comparisons

2006-10-30 15:17  tjdwave

        * doc/latex_spec/: arith.tex, dataenc.tex, motion-dec.tex,
          wlt-dec.tex: Fixed bug in specification of inverse quantisation.
          Changed default arithmetic decoding padding value to 1 from 0, so
          after reading in LENGTH bytes, a value of 1 is used from that
          point. This should support early termination i.e.  encode only
          the first few values in a subband and then the decoder will
          correctly decode the remainder as 0, but this is as yet untested.

2006-10-30 14:57  tjdwave

        * libdirac_common/arith_codec.cpp: Fixed bug so that the decoder
          can now append any data to the end of the arithmetically encoded
          block and still decode correctly. Default padding data is all 1s
          - this should make a null or terminated subband decode with
          zeroes.

2006-10-30 13:42  tjdwave

        * libdirac_common/band_codec.cpp, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_decoder/comp_decompress.cpp: Fixed definitions of
          mean/median so that unbiased mean values are used.  Likewise
          changed the prediction for DC values to take account of the fact
          that they may be negative. These changes change the bitstream.

2006-10-30 13:38  tjdwave

        * doc/latex_spec/: motion-dec.tex, spec-conventions.tex,
          wlt-dec.tex: Changed specification of division so that it agrees
          with C/C++ standards.  Traced through these changes to
          specification of split mode, block dc value and intra dc band
          prediction.

2006-10-26 16:22  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Moved to using cout instead
          of cerr for reporting.

2006-10-26 16:07  tjdwave

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/seq_compress.cpp: Made  operation of retired
          picture list comply with specification: only reference pictures
          are signalled to be retired and non-reference pictures are
          retired by the decoder once they are displayed.

          Clarified frame type parameters so as to be sure they always
          agree. This will need further refactoring.

          Reference frames are now cleaned from the buffer _after_ being
          the current frame has been decoded, as per the spec. This allows
          slightly more flexible GOP structures.

2006-10-25 14:01  tjdwave

        * libdirac_common/common.cpp: Fixed bug with wrong quantiser offset
          being used: now complies with spec again.

2006-10-24 09:09  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex,
          dirac-overview.tex, layout-fullsize.tex, picture-dec.tex,
          profilelevel.tex, spec-conventions.tex, spec-structure.tex,
          state-macros.tex, vidsys-sigrange.tex, vidsys.tex: First stab at
          including the low-delay syntax used for Dirac Pro profiles,
          together with profile and level text. Work in progress!

2006-10-19 16:01  tjdwave

        * doc/latex_spec/picture-dec.tex: Changed order of reference buffer
          management so that a reference picture is not removed until after
          the current picture has been decoded,

2006-10-19 14:53  tjdwave

        * libdirac_common/band_codec.cpp: Put in Dave Schleef's patch for
          making the computation of parent coefficient coordinates correct
          and spec compliant.

2006-10-10 15:04  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/dirac_types.h,
          libdirac_encoder/dirac_encoder.cpp: Fixed bug with aspect ratio
          being set to 0/0. Now it should be set to the correct value from
          the video format defaults.

2006-10-09 16:24  tjdwave

        * libdirac_common/wavelet_utils_mmx.cpp: Renamed functions with
          consistent filter names.

2006-10-05 16:22  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common_types.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h: Given wavelet filters correct
          names and numbers as per spec. Added support for HAAR1 and HAAR2
          filters. FIDELITY filter will be forthcoming.

2006-09-28 18:20  davidf_

        * doc/: browser_compatibility.html, licences.html, licenses.html,
          template.html, template2.html, todo.html: fix license spelling
          mistake correction typos/misses/references

2006-09-28 18:13  davidf_

        * doc/: contact.html, documentation.html, faq.html,
          getting_involved.html, index.html, overview.html, soc2006.html,
          soc2006_ideas.html, specification.html, styles.css, todo.html,
          documentation/publications/diracoverview-ibc2006.pdf: merge shas'
          website fixes added ibc2006 publication

2006-09-28 14:59  tjdwave

        * libdirac_common/: common.cpp, mot_comp.cpp: Fixed the block
          parameter testing so as to be compliant with the specification.
          Non-overlapped blocks are now allowed and supported. The raised
          cosine macro has now been removed and only linear weights are
          supported.

2006-09-28 10:17  tjdwave

        * doc/latex_spec/low-delay.tex: Added file to cover low delay
          syntax.

2006-09-28 10:08  tjdwave

        * doc/latex_spec/: abstract.tex, arith-contexts.tex,
          arith-datainput.tex, arith-decoder-ba.tex,
          arith-decoder-impl.tex, arith-decoder-sint.tex,
          arith-decoder-sua.tex, arith-decoder-tua.tex,
          arith-decoder-uua.tex, arith-decoder.tex, arith-encoder.tex,
          arith-engine.tex, arith-init.tex, arith-intro.tex,
          arith-update.tex, arith.tex, begin-bs.tex, begin-compmethods.tex,
          begin-dwt-fwd.tex, begin-dwt-parentchild.tex, begin-dwt.tex,
          begin-ec-dwt.tex, begin-ec-mc.tex, begin-ec.tex,
          begin-mc-accuracy.tex, begin-mc-blocks.tex, begin-mc-global.tex,
          begin-mc-intra.tex, begin-mc.tex, begin-more.tex,
          begin-pictypes.tex, begin-videocoding.tex, bs-intro.tex,
          bs-semantics.tex, bs-spec.tex, bs-syntax.tex,
          conv-bs-bytealign.tex, conv-bs-defaults.tex, conv-bs-reading.tex,
          conv-intro.tex, conv-parse-diagnums.tex, conv-parse-diagrams.tex,
          conv-pseudocode-syntax.tex, conv-pseudocode.tex,
          dataenc-bool.tex, dataenc-input.tex, dataenc-intro.tex,
          dataenc-nbitlit.tex, dataenc-nbytelit.tex, dataenc-vlc-segol.tex,
          dataenc-vlc-su.tex, dataenc-vlc-uegol.tex, dataenc-vlc-ut.tex,
          dataenc-vlc-uu.tex, dataenc-vlc.tex, dirac-concepts.tex,
          dirac-overview.tex, gendec.tex, idwt-1dsynthesis.tex,
          idwt-filters.tex, idwt-interleaving.tex, idwt-intro.tex,
          idwt-lifting.tex, idwt-padremoval.tex, idwt-synthesis.tex,
          idwt-vhsynthesis.tex, idwt.tex, intro-docstruct.tex,
          intro-purpose.tex, intro-scope.tex, layout-fullsize.tex,
          logicalstruct-accessunit.tex, logicalstruct-arithcoding.tex,
          logicalstruct-blocks.tex, logicalstruct-coordinates.tex,
          logicalstruct-dwt.tex, logicalstruct-frameordering.tex,
          logicalstruct-frames.tex, logicalstruct-globalmc.tex,
          logicalstruct-intro.tex, logicalstruct-localmc.tex,
          logicalstruct-parseunit.tex, logicalstruct-sequence.tex,
          logicalstruct-subbands.tex, logicalstruct-superblocks.tex,
          logicalstructs.tex, mc-alg.tex, mc-blockcoverage.tex,
          mc-chomascaling.tex, mc-impl.tex, mc-intro.tex,
          mc-obmc-matrix.tex, mc-precision.tex, mc-pred.tex,
          mc-upconvert.tex, motion-dec.tex, parsediagrams.tex,
          prep-idwt-codeblk-dim.tex, prep-idwt-codeblk-process.tex,
          prep-idwt-coef-process.tex, prep-idwt-conventions.tex,
          prep-idwt-ctxt-init.tex, prep-idwt-ctxt-magnitude.tex,
          prep-idwt-ctxt-quantindex.tex, prep-idwt-ctxt-sign.tex,
          prep-idwt-ctxt-skip.tex, prep-idwt-pred-dc.tex,
          prep-idwt-process.tex, prep-idwt.tex, prep-mc-ctxt-init.tex,
          prep-mc-decode-blkmotion.tex, prep-mc-decode-dc.tex,
          prep-mc-decode-mv.tex, prep-mc-decode-predictionmode.tex,
          prep-mc-decoding.tex, prep-mc-mbdata.tex,
          prep-mc-predapeature.tex, prep-mc-predictionmodes.tex,
          prep-mc-predmbcommon.tex, prep-mc-predmbglobal.tex,
          prep-mc-predmbsplit.tex, ref-default-videoparams.tex,
          ref-quantization-lut.tex, semantics-auh.tex, semantics-dwt.tex,
          semantics-intro.tex, semantics-mv.tex, semantics.tex,
          spec-conventions.tex, spec-structure.tex, state-macros.tex,
          wlt-dec.tex: Removing a whole load of cruft files. Bug fixes.

2006-09-12 12:18  tjdwave

        * doc/latex_spec/state-macros.tex: [no log message]

2006-09-12 10:00  tjdwave

        * doc/latex_spec/ref-default-videoparams.tex: Completed tables -
          added various decoding presets too.

2006-09-12 09:59  tjdwave

        * doc/latex_spec/sourcepresets.tex: This contains the presets for
          the source parameters. This needs to be merged with the video
          systems model section.

2006-09-12 09:58  tjdwave

        * doc/latex_spec/vidsys.tex: Slightly revised - to be merged with
          source parameters presets.

2006-09-12 09:56  tjdwave

        * doc/latex_spec/: idwt.tex, mc.tex, picture-dec.tex: Finished
          first draft of overall picture decoding process. Added stuff on
          global motion compensation (_probably_ works now).

2006-09-12 09:54  tjdwave

        * doc/latex_spec/: bs-spec.tex, motion-dec.tex, wlt-dec.tex:
          Created unified chapter files for parsing elements. Completed
          overall stream syntax chapter.

2006-09-12 09:52  tjdwave

        * doc/latex_spec/: arith.tex, dataenc.tex: Unified data access
          files into chapter files.

2006-09-12 09:51  tjdwave

        * doc/latex_spec/: dirac-concepts.tex, parsing.tex: Restructured
          part structure files.

2006-09-12 09:48  tjdwave

        * doc/latex_spec/spec-conventions.tex: Updated/added material on
          the way the pseudocode works and the mathematical notation. This
          section still needs work and reordering.

2006-09-12 09:45  tjdwave

        * doc/latex_spec/intro.tex: Revised and unified the general
          introduction.

2006-09-12 09:44  tjdwave

        * doc/latex_spec/spec-structure.tex: Revised overall document
          structure.

2006-09-12 09:42  tjdwave

        * doc/latex_spec/parsediagrams.tex: Added parse diagrams as an
          appendix.

2006-08-24 10:32  tjdwave

        * doc/latex_spec/: decoding-ops.tex, idwt.tex, state-macros.tex:
          Updated inverse wavelet transform section. Introduced Haar
          variants and added a fidelity filter.

2006-08-21 13:33  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex,
          decoding-ops.tex, layout-fullsize.tex, mc.tex, motion-dec.tex,
          parsing.tex, spec-structure.tex, state-macros.tex, wlt-dec.tex:
          Done motion data decoding and motion compensation. Amalgamated
          file contents to simplify structure.

2006-08-11 15:51  tjdwave

        * libdirac_common/: golomb.cpp, golomb.h:
          Functionality is now provided in the Byte IO library.
          ----------------------------------------------------------------------

2006-07-28 14:33  tjdwave

        * libdirac_common/common.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_encoder/dirac_encoder.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h: Removed the Macroblock
          "Common" mode. This means that each prediction unit within a
          macroblock will have to code a mode. Motion data coding has also
          been changed so that instead of coding all the prediction modes
          first and then all the motion data, prediction modes are included
          in the motion data as per the spec.

          An updated version of the latex spec in which the Common mode is
          omitted is in preparation and will be committed in the next
          couple of weeks.

2006-07-19 12:29  tjdwave

        * doc/latex_spec/prep-idwt-process.tex: Added initialisation of the
          coefficient_reset variable.

2006-07-19 12:19  tjdwave

        * doc/latex_spec/: arith-contexts.tex, arith-decoder-sint.tex,
          dataenc-vlc-segol.tex, decoding-ops.tex, intro-docstruct.tex,
          parsing.tex, prep-idwt-coef-process.tex, state-macros.tex,
          figs/block-coverage.eps, figs/obmc-profile.eps: Mods to interface
          with arithmetic coding changes.

2006-07-19 11:48  tjdwave

        * doc/latex_spec/: arith-contexts.tex, arith-datainput.tex,
          arith-decoder-sint.tex, arith-decoder.tex, arith-engine.tex,
          arith-init.tex, arith-intro.tex, arith-update.tex, arith.tex:
          Refactored to take account of exp-Golomb binarisation and the use
          of global context indices being passed to arithmetic decoding
          operations.

2006-07-18 11:36  tjdwave

        * libdirac_common/: band_codec.cpp, band_codec.h: Changed nhood sum
          calculation so that it only takes account of whether the
          neighbour is zero or not.

2006-07-07 15:07  tjdwave

        * encoder/encmain.cpp: Fixed bug with framerate denominator being
          incorrectly set if omitted.

2006-07-07 12:14  tjdwave

        * doc/latex_spec/: intro-docstruct.tex, mc-intro.tex,
          mc-upconvert.tex, mc.tex: Debugging commit.

2006-07-07 12:07  tjdwave

        * doc/latex_spec/: arith-contexts.tex, arith.tex, bs-spec.tex,
          bs-syntax.tex, decoding-ops.tex, idwt.tex,
          prep-idwt-coef-process.tex, prep-idwt-conventions.tex,
          prep-idwt-ctxt-quantindex.tex, prep-idwt-process.tex,
          prep-idwt.tex, spec-structure.tex, state-macros.tex, wlt-dec.tex,
          figs/block-coverage.eps, figs/block-offset.eps, figs/block.eps,
          figs/dwt.eps, figs/frame-ordering.eps, figs/obmc-profile.eps,
          figs/sequence.eps, figs/superblock-16pu.eps,
          figs/superblock-1pu.eps, figs/superblock-4pu.eps: Updated and
          refactored data access and coefficient decoding sections.  Spec
          should be up to date and accurate for coefficient decoding, but
          fine-tuning and checking is required. Diagrams also needed.

          Major change is in the way arithmetic decoding operations are
          called. Just specify sets of contexts to be used for follow bits,
          data bits and the sign by passing indices into the state
          variable, which maintains the contexts.

          This simplifies the code in the stream syntax, avoiding local
          copies etc.  Explanation will be required for the context
          indices. The arithmetic decoding section needs updating to
          reflect this change and use of interleaved exp- Golomb coding.

2006-07-07 08:56  tjdwave

        * doc/latex_spec/layout-fullsize.tex: Added temporary environment
          pseudo* for documenting _part_ of a function's pseudocode (no
          function header).  Fixed bug where \bsRET reduces indent by 1 -
          this broke indentation when there were a number of returns in a
          function.

2006-07-06 12:29  tjdwave

        * libdirac_common/: band_codec.cpp, band_codec.h: Changed coding of
          codeblock quantiser indices to be differential codeblock to
          codeblock, as per Tim's stream syntax, rather than differential
          with respect to the subband quantiser index.

          N.B. this now does not agree with version 0.9.

2006-07-03 14:57  tjdwave

        * doc/latex_spec/: arith-contexts.tex, arith-datainput.tex,
          arith-decoder-ba.tex, arith-decoder-sint.tex, arith-intro.tex:
          Initial update to take account of exp-Golomb binarisation.

2006-07-03 14:00  tjdwave

        * doc/latex_spec/arith-decoder-sint.tex: Adding to update to
          exp-Golomb binarisation.

2006-07-03 13:15  tjdwave

        * doc/latex_spec/: dataenc-bool.tex, dataenc-input.tex,
          dataenc-intro.tex, dataenc-nbitlit.tex, dataenc-nbytelit.tex,
          dataenc-vlc-segol.tex, dataenc-vlc-su.tex, dataenc-vlc-uegol.tex,
          dataenc-vlc-ut.tex, dataenc-vlc.tex, dataenc.tex: Brought
          up-to-date to do interleaved exp-Golomb coding. Included a
          section on bit-packing and reading conventions. To Do: Need to
          align with arithmetic decoding section.

2006-07-03 10:08  tjdwave

        * doc/latex_spec/: layout-fullsize.tex, state-macros.tex: Adding
          shortcuts for decoder state values/variables. This means we can
          change format, or introduce new paramater classes by (mostly)
          modding modding only state-macros.tex.

2006-06-29 15:11  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils.h, common.cpp:
          Defined new Wavelet Filter class VHFilterHaar to include HAAR
          filter support in Dirac.

2006-06-27 18:26  asuraparaju

        * README: Include explanation for new encoder command line
          variables iwlt_filter and rwlt_filter.

2006-06-27 18:17  asuraparaju

        *
          doc/documentation/code/programmers_guide/encoder_data_structs.htm:
          Reflect changes to dirac_encparams_t struct to which two fields
          have been added.  These fields specify the wavelet filters to use
          for intra frames and inter frames.

2006-06-26 17:44  asuraparaju

        * encoder/encmain.cpp: [Spec Compliance] Include command line
          arguments to process non-default transform filters for intra and
          inter frames.

2006-06-26 17:43  asuraparaju

        * unit_tests/motion_comp_test.cpp: Ensure that the number of
          reference frames is specified when creating a CodecParams object.

2006-06-26 17:43  asuraparaju

        * libdirac_encoder/: dirac_encoder.cpp, dirac_encoder.h,
          frame_compress.cpp: [Spec Compliance] Use transform filters
          supplied in the command line arguments to encoder utility to set
          the transform filter in CodecParams while encoding based on frame
          type.  Set up the default frame weight and precision parameters
          correctly based on frame type and number of references.

2006-06-26 17:40  asuraparaju

        * libdirac_common/: video_format_defaults.cpp,
          video_format_defaults.h: [Spec Compliance] Added functions to
          return the default transform filter based on frame type.  The
          default frame weight and frame precision parametes are correctly
          set based on the frame type and number of references.

2006-06-26 17:39  asuraparaju

        * libdirac_common/: common.cpp, common.h: [Spec Compliance] Handle
          non-default frame weights. Include member variables in
          EncoderParams to store the transform filters for inter frame and
          intra frames supplied so that they can be used while encoding.

2006-06-26 17:38  asuraparaju

        * libdirac_byteio/mvdata_byteio.cpp,
          libdirac_byteio/transform_byteio.cpp,
          libdirac_common/mot_comp.cpp, libdirac_common/mot_comp.h: [Spec
          Compliance] Handle non-default frame weights.

2006-06-23 15:17  tjdwave

        * doc/latex_spec/layout-fullsize.tex: Created unified style for
          syntax and semantics called pseudo. No longer uses typewriter
          font - Roman instead.

2006-06-23 10:41  tjdwave

        * doc/latex_spec/: arith-intro.tex, arith.tex, bs-spec.tex,
          dataenc-intro.tex, dataenc.tex, decoding-ops.tex,
          dirac-concepts.tex, dirac-overview.tex, idwt-intro.tex, idwt.tex,
          logicalstructs.tex, mc-intro.tex, mc.tex, motion-dec.tex,
          parsing.tex, picture-dec.tex, semantics.tex,
          spec-conventions.tex, spec-structure.tex, stream-access.tex,
          wlt-dec.tex: Reorganised so that file input is hierarchical, to
          make simultaneous working easier.

2006-06-23 08:48  tjdwave

        * doc/latex_spec/: bs-syntax.tex, layout-fullsize.tex: Moved
          streamsyntax environment definition into layout-fullsize.tex so
          that it's available to all input files.

2006-06-22 12:42  asuraparaju

        * doc/specification.html: Included links to latest Stream Syntax
          Document and Specification Document.

2006-06-22 10:13  tjdwave

        * doc/latex_spec/: intro-docstruct.tex, spec-structure.tex:
          Tentative revision of the specification structure. A rationale is
          contained in intro-docstruct.tex.

2006-06-22 09:02  tjdwave

        * doc/latex_spec/figs/: block-coverage.eps, block-coverage.fig,
          block.eps, block.fig, Makefile, block-offset.eps,
          block-offset.fig, dwt.eps, dwt.fig, frame-ordering.eps,
          frame-ordering.fig, obmc-profile.eps, obmc-profile.fig,
          sequence.eps, sequence.fig, stream.fig, superblock-16pu.eps,
          superblock-16pu.fig, superblock-1pu.eps, superblock-1pu.fig,
          superblock-4pu.eps, superblock-4pu.fig,
          wavelet-transform-process.fig: Adding in diagrams.

2006-06-22 08:57  tjdwave

        * doc/latex_spec/tools/: framed.sty, listings.zip, mkdep.pl:
          Additional latex spec commits.

2006-06-22 08:54  tjdwave

        * doc/latex_spec/: Makefile, abstract.tex, arith-contexts.tex,
          arith-datainput.tex, arith-decoder-ba.tex,
          arith-decoder-impl.tex, arith-decoder-sua.tex,
          arith-decoder-tua.tex, arith-decoder-uua.tex, arith-decoder.tex,
          arith-encoder.tex, arith-engine.tex, arith-init.tex, arith.tex,
          begin-bs.tex, begin-compmethods.tex, begin-dwt-fwd.tex,
          begin-dwt-parentchild.tex, begin-dwt.tex, begin-ec-dwt.tex,
          begin-ec-mc.tex, begin-ec.tex, begin-mc-accuracy.tex,
          begin-mc-blocks.tex, begin-mc-global.tex, begin-mc-intra.tex,
          begin-mc.tex, begin-more.tex, begin-pictypes.tex,
          begin-videocoding.tex, bs-intro.tex, bs-semantics.tex,
          bs-syntax.tex, coder-intro.tex, conv-bs-bytealign.tex,
          conv-bs-defaults.tex, conv-bs-reading.tex, conv-intro.tex,
          conv-parse-diagnums.tex, conv-parse-diagrams.tex,
          conv-pseudocode-syntax.tex, conv-pseudocode.tex,
          dataenc-bool.tex, dataenc-nbitlit.tex, dataenc-nbytelit.tex,
          dataenc-vlc-segol.tex, dataenc-vlc-su.tex, dataenc-vlc-uegol.tex,
          dataenc-vlc-ut.tex, dataenc-vlc-uu.tex, dataenc-vlc.tex,
          dataenc.tex, gendec.tex, idwt-1dsynthesis.tex, idwt-filters.tex,
          idwt-interleaving.tex, idwt-lifting.tex, idwt-padremoval.tex,
          idwt-synthesis.tex, idwt-vhsynthesis.tex, idwt.tex,
          intro-docstruct.tex, intro-purpose.tex, intro-scope.tex,
          layout-fullsize.tex, logicalstruct-accessunit.tex,
          logicalstruct-arithcoding.tex, logicalstruct-blocks.tex,
          logicalstruct-coordinates.tex, logicalstruct-dwt.tex,
          logicalstruct-frameordering.tex, logicalstruct-frames.tex,
          logicalstruct-globalmc.tex, logicalstruct-intro.tex,
          logicalstruct-localmc.tex, logicalstruct-parseunit.tex,
          logicalstruct-sequence.tex, logicalstruct-subbands.tex,
          logicalstruct-superblocks.tex, mc-alg.tex, mc-blockcoverage.tex,
          mc-chomascaling.tex, mc-impl.tex, mc-obmc-matrix.tex,
          mc-precision.tex, mc-pred.tex, mc-upconvert.tex, mc.tex,
          prep-idwt-codeblk-dim.tex, prep-idwt-codeblk-process.tex,
          prep-idwt-coef-process.tex, prep-idwt-conventions.tex,
          prep-idwt-ctxt-init.tex, prep-idwt-ctxt-magnitude.tex,
          prep-idwt-ctxt-quantindex.tex, prep-idwt-ctxt-sign.tex,
          prep-idwt-ctxt-skip.tex, prep-idwt-pred-dc.tex,
          prep-idwt-process.tex, prep-idwt.tex, prep-mc-ctxt-init.tex,
          prep-mc-decode-blkmotion.tex, prep-mc-decode-dc.tex,
          prep-mc-decode-mv.tex, prep-mc-decode-predictionmode.tex,
          prep-mc-decoding.tex, prep-mc-mbdata.tex,
          prep-mc-predapeature.tex, prep-mc-predictionmodes.tex,
          prep-mc-predmbcommon.tex, prep-mc-predmbglobal.tex,
          prep-mc-predmbsplit.tex, ref-default-videoparams.tex,
          ref-quantization-lut.tex, semantics-auh.tex, semantics-dwt.tex,
          semantics-intro.tex, semantics-mv.tex, spec-structure.tex,
          vidsys-aspect.tex, vidsys-colour.tex, vidsys-colourmatrix.tex,
          vidsys-colourprimaries.tex, vidsys-framerate.tex,
          vidsys-sigrange.tex, vidsys-transfer.tex, vidsys.tex: Initial
          commit of Latex port of draft specification.

2006-06-19 18:35  asuraparaju

        * libdirac_common/: common.cpp, mot_comp.cpp, mot_comp.h,
          mot_comp_mmx.cpp, mot_comp_mmx.h: [Spec Compliance] Ensure that
          block overlaps in x and y direction are integral powers of 2.
          Make the OBMC weights calculation truly linear.

2006-06-19 18:34  asuraparaju

        * libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/seq_compress.cpp: Replace std::pow operation
          with left bit-shift operator

2006-06-19 12:27  asuraparaju

        * libdirac_byteio/: byteio.h, mvdata_byteio.cpp: Fix for
          bug#1508532. Ensure that m_current_byte is re-initialised to 0 in
          the ouput byte alignment function ByteIO::OutputCurrentByte.

2006-06-16 12:07  asuraparaju

        * doc/: contact.html, documentation.html, faq.html,
          getting_involved.html, index.html, licenses.html, overview.html,
          soc2006.html, soc2006_ideas.html, specification.html,
          template2.html, todo.html,
          documentation/algorithm/algorithm/intro.htm: Ensure that links to
          Browse CVS on Sourceforge work correctly.

2006-06-16 11:38  asuraparaju

        * doc/documentation.html: Ensuring that named anchors work
          properly.

2006-06-16 11:37  asuraparaju

        * doc/documentation/code/programmers_guide/:
          common_data_structs.htm, decoder_api_example.htm,
          decoder_api_functions.htm, decoder_api_overview.htm,
          decoder_api_reference.htm, decoder_data_structs.htm,
          encoder_api_example.htm, encoder_api_functions.htm,
          encoder_api_overview.htm, encoder_api_reference.htm,
          encoder_data_structs.htm, encoding.htm, index.htm,
          input_formats.htm, intro.htm, overview.htm, software.htm: Updated
          data structs and functionality description for Dirac Codec V0.6.0

2006-06-13 12:58  asuraparaju

        * ChangeLog: [no log message]

2006-06-13 12:56  asuraparaju

        * NEWS: Updated with 0.6.0 release notes.

2006-06-13 12:35  asuraparaju

        * extras/patches/:
          README_ffmpegsvn_trunk_revision_5470-dirac-0.6.x_patch,
          ffmpegsvn_trunk_revision_5470-dirac-0.6.x.patch: Dirac 0.6.0
          patch and install notes for ffmpeg svn revision 5470.

2006-06-13 12:34  asuraparaju

        * extras/patches/: MPlayer-1.0pre7try2_dirac-0.6.x.patch,
          README_MPlayer-1.0pre7try2_dirac-0.6.x_patch: Dirac 0.6.0 patch
          and install notes for MPlayer release MPlayer-1.0pre7try2.

2006-06-13 10:07  timborer

        * libdirac_common/: arith_codec.h, mv_codec.cpp, mv_codec.h: Added
          En/DecodeUInt and En/DecodeSInt functions to the arithmetic codec
          class. These functions read and write signed and unsigned
          integers in a unified way. They are used to replace the acres of
          duplicated code in mv_codec.cpp. This change also had the happy
          side effect of removing the need for a whole slew of chooseXXX
          functions used for selecting the arithmetic coding context.

2006-06-12 16:24  stuart_hc

        * libdirac_decoder/frame_decompress.cpp: whitespace cleanup
          (corrected stray CRLF line-ending to LF)

2006-06-12 13:11  asuraparaju

        * libdirac_common/common.h, libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp: Use enumerated values for
          number of motion vector contexts and coefficient contexts instead
          of hardcoded constants. This helps in not having to change
          multiple files when the number of contexts changes.

2006-06-12 13:11  asuraparaju

        * libdirac_common/mv_codec.cpp: [Spec Compliance] Super block Split
          residual is no longer coded bit-wise but is now coded using
          truncated unary arithmetic coding.

2006-06-12 13:10  asuraparaju

        * libdirac_common/common.cpp,
          libdirac_common/video_format_defaults.cpp,
          libdirac_decoder/dirac_parser.cpp: [Spec Compliance] Ensure that
          Video format defaults are set as per spec

2006-06-12 10:06  tjdwave

        * libdirac_common/wavelet_utils.cpp: Fixed bug with setting weights
          for bands by depth - removed duplicate correction factor.

2006-06-08 17:55  asuraparaju

        * libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/common.h, libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: [Spec compliance] Number of
          contexts in Bin 1 for a Non-zero parent reduced to two from
          three.

2006-06-08 16:19  asuraparaju

        * README, encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common_types.h,
          libdirac_common/video_format_defaults.cpp: Renamed SD_PAL and
          SD_NTSC video format names to 4CIF and 4SIF to avoid confusing
          them with the SD Digital video format names.

2006-06-08 16:14  asuraparaju

        * extras/dirac_dshow/src/: basesplitter/basesplitter.vcproj,
          diracsplitter/DiracSplitter.vcproj,
          diracsplitter/DiracSplitterFile.cpp: Fix path to header and
          libraries in project files. Modify code to handle chages to Dirac
          decoder logic.

2006-06-06 17:11  asuraparaju

        * win32/VS2003/: DiracDecoder/DiracDecoder.vcproj,
          DiracEncoder/DiracEncoder.vcproj,
          libdirac_byteio/libdirac_byteio.vcproj: Fix link errors.

2006-06-06 17:11  asuraparaju

        * util/instrumentation/libdirac_instrument/: draw_overlay.cpp,
          motion_arrows.cpp, sad.cpp: Fix for bug #1501636. Ensuring that
          we are not going past array boundaries.

2006-06-06 17:08  asuraparaju

        * unit_tests/motion_comp_test.cpp: Remove tests for frame equality
          after motion estimation because rounding errors can mean that the
          frames are not equal. However the frame equality is still tested
          after zero motion compensation.

2006-06-06 17:08  asuraparaju

        * libdirac_byteio/mvdata_byteio.cpp, libdirac_common/common.h:
          [Spec Compliance] Reference frame weights are now unsigned.

2006-06-06 17:08  asuraparaju

        * README: Updated the encoder command line argument list

2006-06-05 16:00  asuraparaju

        * configure.ac: Update release id to 0.6.0

2006-06-05 15:57  asuraparaju

        * util/instrumentation/libdirac_instrument/: draw_overlay.cpp,
          motion_arrows.cpp, motion_colour.cpp, motion_colour_arrows.cpp,
          overlay.cpp, pred_mode.cpp, sad.cpp, split_mode.cpp: [Spec
          compliance] Ensure that the instrumentation utility works for
          true 8 bit data. Note that there is no support at present for
          non-8bit data.

2006-06-05 15:56  asuraparaju

        * util/instrumentation/instrmain.cpp: Read video depth from
          diagnostics input file.

2006-06-05 15:55  asuraparaju

        * libdirac_encoder/quality_monitor.cpp: [Spec compliance] Adjust
          lambda values to make them bit-depth agnostic. Tested only on 8
          bit input data. Need to test and maybe adjust for other
          bit-depths.

2006-06-05 15:55  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: [Spec compliance] Default
          Video depth is 8 bits.

2006-06-05 15:55  asuraparaju

        * libdirac_decoder/: frame_decompress.cpp, frame_decompress.h,
          seq_decompress.cpp: [Spec compliance] Include Variable bit-depth
          support in FrameDecompressor class.

2006-06-05 15:54  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils.h,
          wavelet_utils_mmx.cpp: [Spec compliance] Accuracy bits are
          required in the wavelet analysis stage. The number of bits
          required depends on the transform depth.  Shift the input data up
          1 bit to the right to increase accuracy in the Analyis stage.
          Round the input data down by 1 bit in the Synthesis stage to
          counter the shift in the analysis stage. All rounding is unbiased
          irrespective of the number of bit it is rounded to. The
          perceptual weights are adjusted for each subband depending on the
          level of the subband.

2006-06-05 15:54  asuraparaju

        * libdirac_common/mot_comp.cpp, libdirac_common/pic_io.cpp,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_motionest/me_utils.cpp,
          libdirac_motionest/me_utils_mmx.cpp: [Spec Compliance] The
          input/output is always true bit depth specified by video-depth
          and not converted to 10 bit data internally.  So no need to shift
          8 bit data by two to convert it to 10 bits.

2006-06-05 15:53  asuraparaju

        * libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_encoder/seq_compress.cpp, unit_tests/frames_test.cpp,
          unit_tests/motion_comp_test.cpp: [Spec Compliance] Set Variable
          bit-depth in FrameBuffer classe to set up FrameParams class with
          variable bit-depth.

2006-06-05 15:53  asuraparaju

        * libdirac_common/: frame.cpp, frame.h: [Spec Compliance] Support
          for multiple video depths. Included functionality to clip
          upconverted data.

2006-06-05 15:53  asuraparaju

        * libdirac_common/: common_types.h, video_format_defaults.cpp:
          [Spec Compliance] Ensure that default parameters are correctly
          set for all video formats.  Add enumerated types for D-Cinema
          video formats' parameters. Default motion vector precision has
          reverted to quarter pixel from half pixel.

2006-06-05 15:52  asuraparaju

        * libdirac_common/: common.cpp, common.h: [Spec Compliance] Add
          support for D-Cinema video formats.  Include Variable bit-depth
          support in Frame Params. Used for clipping.  Fix bug in
          calculating number of code blocks for different transform depths.

2006-06-05 15:52  asuraparaju

        * libdirac_common/arrays.h: [Spec Compliance] PIXEL_VALUE_MIN and
          PIXEL_VALUE_MAX no longer required as the min and max values are
          calculated based on the bit-depth of the input video. Fix
          indentation by replacing tabs with white space.

2006-06-05 15:51  asuraparaju

        * libdirac_byteio/transform_byteio.cpp: Fixed bug where the
          non-default wavelet filter flag was not being written to the
          bitstream when a non-default filter is used.

2006-06-05 15:51  asuraparaju

        * libdirac_byteio/seqparams_byteio.cpp: [Spec compliance] Throw an
          error if a video depth other than the default value of 8 is
          specified.

2006-06-05 15:51  asuraparaju

        * libdirac_byteio/frame_byteio.cpp: [Spec compliance] Actual
          picture number is stored in the picture header and not the offset
          from the Access unit picture number. Reference frame offsets and
          retired frame offsets are calculated from current picture number
          and not access unit header picture number.

2006-06-05 15:50  asuraparaju

        * libdirac_byteio/byteio.h: Fix warnings in doxygen documentation.

2006-06-05 15:50  asuraparaju

        * encoder/encmain.cpp: Write video depth to diagnostics output
          file.

2006-05-23 14:09  tjdwave

        * libdirac_encoder/quant_chooser.cpp: Changed initial index to 0
          from 4, so that 8 bit video will be properly coded.

2006-05-22 10:56  tjdwave

        * libdirac_encoder/quality_monitor.cpp: Modified PSNR log to output
          a table for greater clarity.

2006-05-17 18:33  asuraparaju

        * unit_tests/: motion_comp_test.cpp, motion_comp_test.h: Change
          precision type in test prototype from int to MVPrecisionType.

2006-05-16 14:53  asuraparaju

        * libdirac_common/wavelet_utils_mmx.cpp: Changed the wavelet
          transform so that unbiased rounding is not used with a shift of 1
          in the lifting stage to keep in line with the non-MMX optimised
          code.

2006-05-16 12:25  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fix g++ warnings

2006-05-16 12:24  asuraparaju

        * libdirac_encoder/quant_chooser.cpp: Minor mods to speed up error
          calculation. Overall improvement in encoding speed is about 4-5%
          for long gop Changed quantisation as per draft spec so that extra
          2 bits accuracy apply to the quantisation offset. This helps at
          low quantisation factors particularly.

2006-05-16 12:24  asuraparaju

        * libdirac_encoder/: quality_monitor.cpp, quality_monitor.h: -
          Removed superfluous filtering function.  - Computes PSNR instead
          of weighted 4th power metric; chroma PSNRs are also   computed.

2006-05-16 12:24  asuraparaju

        * libdirac_encoder/frame_compress.cpp: Spec Compliance: - Setup
          default code blocks depending on whether frame type is intra or
          inter.

2006-05-16 12:23  asuraparaju

        * libdirac_encoder/dirac_encoder.h: Change type of mv_precision in
          dirac_encparams_t function to MVPrecisionType

2006-05-16 12:23  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: Spec Compliance: - Handle
          CodeBlockMode which replaces the multi-quantisers flag.  - Set
          default spatial partition flag to false if wavelet depth is not
          set   to the default value.

2006-05-16 12:23  asuraparaju

        * libdirac_decoder/frame_decompress.cpp: Spec Compliance - Throw
          error if Zero transform flag is set for Intra frames.  - Handle
          Zero transform condition for inter frames.

2006-05-16 12:22  asuraparaju

        * libdirac_decoder/dirac_parser.h: The parser no longer returns
          STATE_PICTURE_START state. Modify the example in the doxygen
          documentation to reflect this.

2006-05-16 12:22  asuraparaju

        * libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h: Spec Compliance - multiple
          quantisers are used when code block mode is set to
          QUANT_MULTIPLE - All values are set to 0 if a block is skipped
          irrespective of whether is   is a DC block or not.  - Modified
          SetupCodeBlocks functions to use the default code blocks if
          default partitioning is enabled or values of from the bitstream
          for custom   paritioning (only for decoder)

2006-05-16 12:21  asuraparaju

        * libdirac_common/: wavelet_utils.h, wavelet_utils_mmx.cpp:
          Implement unbiased rounding for the lifting stages in all wavelet
          filters.

2006-05-16 12:21  asuraparaju

        * libdirac_common/video_format_defaults.cpp: Spec compliance - Set
          up default Codec parameters to comply with spec.  - Default
          motion vector precision is now Half Pixel.

2006-05-16 12:20  asuraparaju

        * libdirac_common/mv_codec.cpp: Spec compliance - Common Mode
          prediction function returns false for top left corner of   block.
          - Block mode prediction function return INTRA instead of
          REF1_ONLY for   the top left corner of a block - The sign flag is
          encoded/decoded as true if the value is negative.

2006-05-16 12:20  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp_mmx.cpp: Define MMX
          optimised version of Half Pixel block compensation function
          MotionCompensator_HalfPixel::CompensateBlock

2006-05-16 12:19  asuraparaju

        * libdirac_common/band_codec.cpp: Spec Compliance: - Code block
          skip flag encoded/decoded only if there is more than one code
          block in a subband - The sign flag is encoded/decoded as true if
          the value is negative.  - Max number of quantisers increased to
          97 (0..96). Throw an error if   quantisation index exceeds this
          value while decoding.  - Changed quantisation as per draft spec
          so that extra 2 bits accuracy   apply to the quantisation offset.
          This helps at low quantisation factors   particularly.

2006-05-16 12:19  asuraparaju

        * encoder/encmain.cpp: Print extra-information regarding encoder
          params used to encoding. E.g.  motion vector precision, transform
          depth etc.

2006-05-16 12:18  asuraparaju

        * libdirac_byteio/transform_byteio.cpp: Spec compliance: - Zero
          transform flag applies only to Intra frames.  - Read/write code
          blocks from/to bitstream if Default spatial partitioning is
          disabled. Throw error when non-default transform depth is
          specified but   default spatial partitioning is set.  - Replace
          Multiple quantisers flag with Code block mode enumerated type.

2006-05-16 12:18  asuraparaju

        * libdirac_common/common_types.h: New enumerated type to handle
          CodeBlockMode which replaces the binary Multiple quantisers flag.

2006-05-16 12:17  asuraparaju

        * libdirac_common/: common.cpp, common.h: Spec Compliance: New
          class CodeBlocks for handling code blocks.  In CodecParams class
          - change type of m_mv_precision to MVPrecisionType - change type
          of m_wlt_depth to unsigned - replace m_multi_quants flag with
          CodeBlockMode enumerated type.  - New member variable and member
          functions to handle CodeBlocks In QuantisersLists class - Add a
          new member variable m_max_qindex to set the max val of quantiser
          index that can be handled by the decoder.

2006-05-15 12:45  asuraparaju

        * libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: Fix bug in specifying number
          of contexts. The number should be 23 and not 22 as previously
          specified.

2006-05-15 12:43  asuraparaju

        * libdirac_common/: mv_codec.cpp, mv_codec.h: [Thomas's changes]
          Changed coding of MB split so that it's bitwise, with bitwise
          prediction.  This is more efficient and is consistent with coding
          prediction modes.

2006-05-15 12:43  asuraparaju

        * libdirac_common/common.h: [Thomas's changes] Changed coding of MB
          split so that it's bitwise, with bitwise prediction.  This is
          more efficient and is consistent with coding prediction modes.

          Changed quantisation to give 2 bits of accuracy to quantisation
          factors.  This improves performance in high-quality applications,
          and reduces large steps in quality.

2006-05-15 12:42  asuraparaju

        * libdirac_common/common.cpp, libdirac_encoder/quant_chooser.cpp:
          [Thomas's changes] Changed quantisation to give 2 bits of
          accuracy to quantisation factors.  This improves performance in
          high-quality applications, and reduces large steps in quality.

2006-05-15 12:42  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: [Thomas's
          changes] Changed quantisation to give 2 bits of accuracy to
          quantisation factors.  This improves performance in high-quality
          applications, and reduces large steps in quality.  Fixed bug with
          multiple code blocks changing m_cutoff_point repeatedly.

2006-05-04 09:45  tjdwave

        * libdirac_common/band_codec.cpp, libdirac_common/common.h,
          libdirac_common/mv_codec.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: Rationalised arithmetic
          coding contexts and tidied code. Coefficient coding now covers
          bins 1-4 individually for "follow/continue bits". There are also
          separate info contexts for the case where the parent is
          zero/non-zero.

2006-05-03 17:05  asuraparaju

        * doc/: browser_compatibility.html, contact.html,
          documentation.html, faq.html, getting_involved.html, index.html,
          licenses.html, overview.html, soc2006.html, soc2006_ideas.html,
          specification.html, todo.html: Include links and details of Dirac
          participation in Google's Summer of Code 2006 program.

2006-04-26 16:06  asuraparaju

        * doc/faq.html: Fixed a typo.

2006-04-26 15:59  asuraparaju

        * tests/samples.at: Set luma block size values depending on the
          preset value.

2006-04-21 14:59  dirac_dev

        * encoder/encmain.cpp: Prevents user from specifying more than 5
          wavlet transforms

2006-04-21 14:20  dirac_dev

        * encoder/encmain.cpp, libdirac_byteio/mvdata_byteio.cpp,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/common_types.h,
          libdirac_common/dirac_exception.h, libdirac_common/mot_comp.cpp,
          libdirac_common/video_format_defaults.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_motionest/me_mode_decn.cpp: Added in variable
          motion-vector precision. Can now be controlled from the
          command-line. Default is quarter pixel.

2006-04-21 10:23  asuraparaju

        * libdirac_common/band_codec.cpp, libdirac_common/common.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: Differential quantiser index
          is now coded using arithmetic signed multiplexed exp Golomb
          binarisation to conform with spec. Added contexts to list of
          contexts to support this in common.h.

2006-04-20 16:39  asuraparaju

        * libdirac_byteio/: byteio.cpp, byteio.h, displayparams_byteio.cpp,
          frame_byteio.cpp, mvdata_byteio.cpp, parseparams_byteio.cpp,
          parseunit_byteio.cpp, seqparams_byteio.cpp, subband_byteio.cpp,
          transform_byteio.cpp: Replaced exp-Golomb coding with interleaved
          exp-Golomb coding to conform with spec.  Fixed-length values
          (like access unit picture number, parser offset) are now written
          out in Big-Endian order to conform with spec. Renamed coding
          functions to reflect whether they are coding fixed length values
          or variable length values.

2006-04-20 11:45  asuraparaju

        * libdirac_byteio/Makefile.am: Missed this file in the previous
          commit. It is part of the major restructure to Dirac bytestream
          I/O.

2006-04-20 11:41  asuraparaju

        * Makefile.am, README, configure.ac, decoder/decmain.cpp,
          doc/documentation/code/api/dirac_api.doxygen,
          encoder/encmain.cpp,
          extras/dirac_dshow/src/diracsplitter/DiracSplitter.cpp,
          extras/dirac_dshow/src/diracsplitter/DiracSplitter.vcproj,
          extras/dirac_dshow/src/diracsplitter/DiracSplitterFile.cpp,
          extras/dirac_dshow/src/diracsplitter/stdafx.h,
          libdirac_byteio/accessunit_byteio.cpp,
          libdirac_byteio/accessunit_byteio.h, libdirac_byteio/byteio.cpp,
          libdirac_byteio/byteio.h, libdirac_byteio/component_byteio.cpp,
          libdirac_byteio/component_byteio.h,
          libdirac_byteio/dirac_byte_stats.cpp,
          libdirac_byteio/dirac_byte_stats.h,
          libdirac_byteio/dirac_byte_stream.cpp,
          libdirac_byteio/dirac_byte_stream.h,
          libdirac_byteio/displayparams_byteio.cpp,
          libdirac_byteio/displayparams_byteio.h,
          libdirac_byteio/endofsequence_byteio.cpp,
          libdirac_byteio/endofsequence_byteio.h,
          libdirac_byteio/frame_byteio.cpp, libdirac_byteio/frame_byteio.h,
          libdirac_byteio/mvdata_byteio.cpp,
          libdirac_byteio/mvdata_byteio.h,
          libdirac_byteio/parseparams_byteio.cpp,
          libdirac_byteio/parseparams_byteio.h,
          libdirac_byteio/parseunit_byteio.cpp,
          libdirac_byteio/parseunit_byteio.h,
          libdirac_byteio/seqparams_byteio.cpp,
          libdirac_byteio/seqparams_byteio.h,
          libdirac_byteio/subband_byteio.cpp,
          libdirac_byteio/subband_byteio.h,
          libdirac_byteio/transform_byteio.cpp,
          libdirac_byteio/transform_byteio.h, libdirac_common/Makefile.am,
          libdirac_common/arith_codec.cpp, libdirac_common/arith_codec.h,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/common_types.h,
          libdirac_common/dirac_exception.cpp,
          libdirac_common/dirac_exception.h, libdirac_common/dirac_types.h,
          libdirac_common/frame.cpp, libdirac_common/frame.h,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/mot_comp.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_common/pic_io.cpp, libdirac_common/pic_io.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/video_format_defaults.h,
          libdirac_common/wavelet_utils.cpp, libdirac_decoder/Makefile.am,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_cppparser.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/dirac_parser.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h, libdirac_encoder/Makefile.am,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quant_chooser.cpp,
          libdirac_encoder/quant_chooser.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp, tests/samples.at,
          unit_tests/frames_test.cpp, unit_tests/motion_comp_test.cpp,
          util/instrumentation/instrmain.cpp,
          util/instrumentation/process_sequence.cpp,
          util/instrumentation/libdirac_instrument/overlay.cpp,
          win32/VS2003/Makefile.am, win32/VS2003/dirac.sln,
          win32/VS2003/ConversionUtils/libconv_common/libconv_common.vcproj,
          win32/VS2003/DiracDecoder/DiracDecoder.vcproj,
          win32/VS2003/DiracEncoder/DiracEncoder.vcproj,
          win32/VS2003/EncodeDirac/EncodeDirac.vcproj,
          win32/VS2003/libdirac_byteio/libdirac_byteio.vcproj,
          win32/VS2003/libdirac_common/libdirac_common.vcproj: Major
          restructure of Input/Output classes in Dirac internals. New
          directory, libdirac_byteio contains classes to input from/output
          to a Dirac bistream.

          Dirac external API (both encoder and decoder) has changed. So the
          patches for MPlayer, FFmpeg, and the Dirac Directshow filter will
          no longer work with the CVS source. The external API is likely to
          change over the next few weeks.  Updated versions of the patches
          and Direcshow filter will be available with the next release of
          Dirac.

          NOTE: the bytestream has changed to largely conform to the latest
          Dirac spec.  More work needs to be done to conform fully to the
          Dirac definition document. So expect the CVS source and resulting
          bitstream to change frequently over the next few weeks.

2006-04-18 11:18  tjdwave

        * libdirac_common/arith_codec.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h, libdirac_common/common.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp: Changing binarisation for
          arithmetic coding, and associated contexts.  The specification
          will be modified accordingly.

          Binarisation for the magnitude values of wavelet coefficients,
          motion vector prediction residues and DC values has been changed
          from unary to interleaved exp-Golomb so that the number of
          symbols to be decoded in order to reconstruct a coefficient is
          reduced. Exp-Golomb binarisation takes a number N>=0 and codes it
          via the binary representation of N+1, 1bbbbbb. If there are K
          bits following the leading 1, the representation is K zeroes
          followed by the binary representation:

          00...01bbbbb Interleaved exp-Golomb is the same, except that the
          K lsbs are interleaved with the zeroes: 0b0b   0b1 so that a
          single decoding loop can be used. The zeroes here act as "follow
          bits" indicating that another bit is to be sent, with 1 as the
          terminator.

          Contexts for coding these symbols are selected for the follow
          bits and other bits ("information bits") separately. Compression
          performance is hardly affected, nor is speed performance in
          software, but hardware performance is greatly facilitated.

2006-04-12 16:06  tjdwave

        * libdirac_common/arith_codec.h: Changed while loops for decoding
          and encoding into fixed-size for-loops with break conditions.
          Although ugly, this provides safer code as loops will terminate
          if there's an error.

2006-04-11 12:23  asuraparaju

        * unit_tests/motion_comp_test.cpp: Set number of references in
          MvData constructor to fix compilation errors.

2006-04-10 11:13  tjdwave

        * libdirac_common/band_codec.cpp: Changed lookup table-based
          division to a straight division. This is slightly slower, but
          will scale to higher levels of wavelet decomposition.  Also
          eliminates bug with occasional wrap-around for lossless coding on
          some pictures. Making abs_val 64 bits would also work but could
          be equally slow on 32 bit architectures.

2006-03-20 12:54  asuraparaju

        * encoder/encmain.cpp, libdirac_encoder/dirac_encoder.cpp: Fixed
          bug in writing instrumentation data to output which always
          assumed that data for two references were available.

2006-03-17 18:04  timborer

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/pixel_match.cpp,
          util/instrumentation/process_sequence.cpp: Changed block mode
          coding so that residues for reference 2 are not generated when we
          are only using one reference.  THIS CHANGES THE BYTESTREAM This
          reduces the bit rate by a few bits, but the reason for doing it
          is becuase it makes the codec more logical.  Also modified
          BlockModePrediction so that it doesn't do a prediction for
          reference 2 when we are only using one reference.  Removed some
          unnecessary memory allocation in MvData constructor.  Removed a
          few warning messages and tidied up a bit.

2006-03-01 18:19  asuraparaju

        * libdirac_common/: arith_codec.cpp, arith_codec.h: Rationalised
          types used i.e. replaced all code_t, calc_t etc with unsigned
          int. Simplified the code by removing one addition and shift from
          DecodeSymbol.

2006-02-28 15:53  asuraparaju

        * libdirac_common/arith_codec.cpp: Fixed g++ warning when compiled
          in debug mode

2006-02-28 15:29  asuraparaju

        * libdirac_common/Makefile.am,
          win32/VS2003/libdirac_common/libdirac_common.vcproj: Added
          arith_codec.cpp to list of .cpp files

2006-02-28 15:25  asuraparaju

        * libdirac_common/: arith_codec.cpp, arith_codec.h: Refactored code
          to make implementation easier to understand. The code restructure
          modified the bitstream but older version of arith_codec can
          decode this new version and vice-versa.

2006-02-21 13:32  tjdwave

        * libdirac_common/arith_codec.h: Modified arithmetic coding engine
          for speed and spec conformance.  1. Changed context statistics so
          that maximum weight is 256 2. Changed look-up table so that
          inverse of weight is calculated to 16 instead of 31 bits.  3.
          Changed scaled count of zero m_prob0 so that it's 16 bits instead
          of 10

          Changes 1-3 mean that m_prob0 can be worked out using only 16 bit
          multiplies and no bitshift. This is more hardware friendly.

          4. Modified do .. while loop for encoding and decoding so that a
          more efficient test for MSB equality can be used, resulting in a
          speed-up 5. Changed the order of decoding so that bits are
          shifted in first and then the symbol is determined. This reduces
          unnecessary bit inputs and moves to a 'lazy' input mode 6.
          Changed the statistics update function so that m_prob0 is
          calculated for every update rather than every other. This speeds
          up the code and gives better compression performance.

2006-02-15 14:27  asuraparaju

        * tests/samples.at: Included  block variables so that tests can be
          run for different block sizes. Note that the block sizes must be
          changed manually before running the tests.

2006-02-15 14:26  asuraparaju

        * libdirac_motionest/: me_utils.cpp, me_utils_mmx.cpp,
          pixel_match.cpp: Padding related changes. Since there may no
          longer be an integer number of whole macroblocks and blocks in a
          paddied picture, made changes to ensure that we do not fall off
          the boundaries of the padded pictured during motion estimation.
          WARNING : This changes the bitstream

2006-02-15 14:24  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp.h, mot_comp_mmx.cpp,
          mot_comp_mmx.h: A linear function is used to calculate the OBMC
          weights instead of a raised cosine function to make it compliant
          with spec. Also motion compensation is performed only on true
          picture dimensions and not padded picture dimensions, WARNING :
          This changes the bitstream

2006-02-15 14:23  asuraparaju

        * libdirac_common/common.cpp: Modified CodecParams.SetBlockSizes
          function to be compliant with spec.  WARNING : This changes the
          bitstream

2006-02-15 14:21  asuraparaju

        * libdirac_common/common.h, libdirac_common/frame.cpp,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/seq_compress.cpp, unit_tests/frames_test.cpp,
          unit_tests/motion_comp_test.cpp: Currently a frame is padded so
          that it has an integer number of whole macro blocks and is also a
          multiple of 2^(wavelet transform depth). This has changed in the
          Dirac specification where a frame is padded so that its
          dimensions are a multiple of 2^(wavelet transform depth) only.
          Also the luma and the chroma components can be padded
          differently. E.g. the luma dimensions may be a perfect multiple
          of 2^(wavelet transform depth) so the luma component is not
          padded but the chroma component may need to be padded depending
          on the chroma format of the input.  To take care of this,
          FrameParams class has been modified to accept both padded chroma
          and padded luma dimensions.

          WARNING! This modifies the bitstream.

2006-02-14 12:48  tjdwave

        * libdirac_common/arith_codec.h: Changed count rescaling so that it
          occurs every time a bit is encoded/decoded.  This is to make
          compliant with spec, and also because doing it every other bit
          was giving no speed advantage.

          WARNING! This changes the bitstream.

2006-02-10 09:49  tjdwave

        * libdirac_common/common.cpp: Modified calculation of quantisation,
          inverse quantisation and offset values so as to conform to
          specification.  WARNING: this modifies the bitstream.

2006-02-09 13:58  tjdwave

        * libdirac_common/: motion.h, mv_codec.cpp: Removed the function
          for computing a mean of a vector of ints. Instead all means are
          of unsigned int values, and are calculated using unbiased
          arithmetic ie with an offset of N/2 for N values to ensure even
          rounding. This changes the mean used for predicting DC values in
          motion vector coding. As a result, the bitstream is also changed.

2006-01-06 15:56  tjdwave

        * libdirac_common/mv_codec.cpp: Changed refresh so that statistics
          are refreshed after m_reset_num macroblocks as intended, rather
          than m_reset_num+1.  WARNING! This changes the bitstream.

2006-01-06 15:22  asuraparaju

        * libdirac_motionest/me_utils.cpp: Fixed bug#1383890. Applied patch
          supplied in bug report.

2005-12-07 12:50  asuraparaju

        * doc/specification.html: Link to Dirac specification document

2005-12-07 11:34  asuraparaju

        * doc/: contact.html, documentation.html, faq.html,
          getting_involved.html, index.html, licenses.html, overview.html,
          template2.html, todo.html: Included a link to the Dirac
          Specification document.

2005-12-07 11:33  asuraparaju

        * doc/documentation/algorithm/algorithm/wlt_transform.xht: Fixed
          filter coefficients for 13,5 filter.

2005-12-05 12:44  asuraparaju

        * ChangeLog: [no log message]

2005-12-05 12:38  asuraparaju

        * NEWS: Updated with 0.5.4 release notes

2005-12-05 12:33  asuraparaju

        * extras/patches/: FFMpeg-20051205-dirac-0.5.x.patch,
          README_FFMpeg-20051205-dirac-0.5.x_patch: FFMpeg patch for cvs
          version dated 05-Dec-2005.

2005-12-05 12:32  asuraparaju

        * extras/patches/: README_FFMpeg-20050806-dirac-0.5.x_patch,
          README_ffmpeg-0.4.9-pre1-dirac-0.5.x_patch: Updated instruction
          for latest Dirac release

2005-12-05 12:26  asuraparaju

        * extras/patches/README_MPlayer-1.0pre7_dirac-0.5.x_patch: Updated
          instructions to use latest release of Dirac and MPlayer

2005-12-02 16:25  asuraparaju

        * libdirac_common/mot_comp_mmx.cpp: Fix bug with uninitialised
          memory reads when compiling in msys-g++ environment.

2005-12-02 10:16  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: Added Steve
          Bearcroft to list of contributors.

2005-12-01 14:34  asuraparaju

        * README: Changes to reflect the new/modified options of the
          command line encoder dirac_encoder.

2005-12-01 14:30  asuraparaju

        * AUTHORS: Updated contributor list.

2005-12-01 14:30  asuraparaju

        * configure.ac: Updated release id to 0.5.4

2005-12-01 14:29  asuraparaju

        * tests/: colourbars.at, samples.at: Changes due to modified
          dirac_encoder command line. Include the -local option to generate
          diagnostics and locally decoded data to use in comparison and
          instrumentation tests.

2005-12-01 14:27  asuraparaju

        * encoder/encmain.cpp: Generation of Diagnostics data and locally
          decoded output is now disabled by default. To enable this use the
          commandline option -local.

2005-12-01 14:26  asuraparaju

        * libdirac_common/upconvert_mmx.cpp: Mods to make
          Upconverter::DoUpconverter function more efficient

2005-12-01 14:25  asuraparaju

        * libdirac_common/wavelet_utils.h: New function
          VHFilter5_3::HorizSynth which is used only when MMX opts are
          enabled. This function is used to interleave horizontal synthesis
          with vertical synthesis to make the wavelet syntheis function
          slightly more efficient.

2005-12-01 14:22  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: New function
          ClearBlock to set all values in block to 0 more efficiently.
          Applied BandCodec optimisation part of patch 1303281 which make
          DecodeVal function more efficient.

2005-12-01 14:12  asuraparaju

        * libdirac_common/wavelet_utils_mmx.cpp: Minor mods to optimise
          VHFilter5_3::Split further.

2005-12-01 14:10  asuraparaju

        * libdirac_common/mot_comp_mmx.cpp: Minor changes to ensure that
          uninitialised memory reads do not cause crashes when compiled
          using MS VC++. Note that the data read from unitialised memory is
          not being used but still causes problems on some platforms.

2005-12-01 14:06  asuraparaju

        * libdirac_common/mot_comp.cpp: Using calculated values of blocks
          per macro block row and blocks per sub-block row instead of
          hardcoded values.

2005-12-01 14:02  asuraparaju

        * util/encoder_gui/: README, diracdata.h, diracgui.cpp, diracgui.h,
          encodebox.cpp, encoder_gui.pro, filesbox.cpp, repthread.cpp,
          tables.h: Included option in GUI to disable the creation of
          diagnostics data file and locally decoded output. dirac_encoder
          need no longer be in the current working directory but in any
          directory in the PATH variable.

2005-11-15 15:35  asuraparaju

        * libdirac_common/arith_codec.h: Minor cosmetic difference as to
          how CODE_MSB and CODE_2ND_MSB are initialised to make their usage
          more obvious.

2005-11-15 15:33  asuraparaju

        * doc/Makefile.am: Fix problem with install target

2005-11-08 11:45  asuraparaju

        * libdirac_common/band_codec.cpp: Minor changes in DoWorkCode,
          DoWorkDecode and DecodeCoeffBlock functions in the way 2-D arrays
          are accessed which resulted in a slight decoding speed
          improvement.

2005-11-08 11:43  asuraparaju

        * libdirac_common/upconvert_mmx.cpp: Minor changes to DoUpConverter
          routine to give slight improvement in uoconversion speed.

2005-11-08 11:41  asuraparaju

        * libdirac_common/arrays.h: In Resize function in OneDArray class,
          dealloc and realloc data only if the new and old array sizes are
          different.

2005-11-08 11:40  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils_mmx.cpp:
          Optimised WaveletTransform::VHFilter5_3::Split using MMX
          instructions. Minor mods to WaveletTransform::VHFilter5_3::Synth
          function improve speed slightly.

2005-11-08 11:37  asuraparaju

        * libdirac_motionest/Makefile.am,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert_mmx.cpp,
          win32/VS2003/libdirac_motionest/libdirac_motionest.vcproj:
          Optimised DoDownConverter routine using MMX instructions

2005-11-08 11:34  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp.h, mot_comp_mmx.cpp:
          Modified motion compensation so that it take Macro-Block
          splitting mode into consideration when compensating a row of
          blocks. Depending on the macroblock split mode, 1,2 or 4 blocks
          of reference data are used to calculate the motion compensated
          data. This sped up the default quarter pixel block motion
          compensation routine by an average of 20-23% for a 2Mbps Dirac
          bitstream.

2005-11-08 11:26  asuraparaju

        * libdirac_common/: frame.cpp, frame.h, frame_buffer.cpp,
          frame_buffer.h: Changes to FrameBuffer handling. Deleting old
          frames and allocating new frames is quite expensive. So instead
          of deleting frames no longer required in the frame buffer, they
          are flagged "not in use". So the next time a new reference frame
          has to be inserted in the Frame buffer, the first frame "not in
          use" is used to store the new frame. An overall improvement of
          6-7 percent in decoding speed for a 2Mbps bitstream resulted.

2005-10-17 12:06  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: Fixed bug #1328565. Now
          ensuring that all locally decoded frames are available for
          output.

2005-10-11 14:02  tjdwave

        * libdirac_common/arith_codec.h: Incorporated Steve Bearcroft's
          speed-up patch, with some minor typographical changes for
          clarity.

2005-10-11 10:00  tjdwave

        * libdirac_motionest/block_match.cpp: Added patch 1309571 which
          fixes the quality degradation introduced in the motion estimation
          speed-ups.

2005-10-07 11:17  asuraparaju

        * libdirac_motionest/: me_utils.cpp, me_utils_mmx.cpp,
          me_utils_mmx.h: Applied MMX optimisations to modified ME
          routines. This is an initial version that improves Motion
          Estimation speed by 30% resulting in a 20% improvement in
          encoding speed overall. This is work in progress.

2005-09-27 14:44  dirac_dev

        * libdirac_encoder/dirac_encoder.h: Replaced boolean with int.
          C-compilers (eg. ffmpeg) complain about C++ constructs.

2005-09-27 14:08  tjdwave

        * libdirac_encoder/quality_monitor.cpp: Set the motion estimation
          factor to compensate for the default search precision being at
          1/4 pel (as this is the default precision) rather than 1/8th pel.

2005-09-27 14:07  tjdwave

        * libdirac_motionest/: motion_estimate.cpp, motion_estimate.h:
          Removed cut detection, which is now in the FrameCompressor class.
          Removed the kludge which scaled the motion vector precisions. All
          motion estimation is now at the selected precision.

2005-09-27 14:01  tjdwave

        * libdirac_motionest/: me_mode_decn.cpp, me_mode_decn.h: Use
          specific matching classes for different pixel accuracies. Reduced
          search ranges for increased speed.

2005-09-27 13:59  tjdwave

        * libdirac_motionest/me_subpel.cpp: Removed calculation of lambda
          map. Simplified class by using the specific subpixel refinement
          matching function.

2005-09-27 13:55  tjdwave

        * libdirac_motionest/: pixel_match.cpp, pixel_match.h: Search
          ranges restricted to improve motion estimation speed.

2005-09-27 13:52  tjdwave

        * libdirac_motionest/: block_match.cpp, block_match.h: Refactored
          the BlockMatcher class. There are now three functions for finding
          a best match - finding the pixel-accurate best match, refining
          this to sub-pixel accuracy, and also finding a best match from a
          list at sub-pixel level.  These matching functions contain
          shortcuts to speed up matching as follows.

          FindBestMatchPel: - The predictors are each searched first, and
          if their SAD values are small then the search ends.  - bailout
          functions are used for calculating matching costs for the
          remaining candidates

          RefineMatchSubpel: - The predictor from neighbouring (previously
          refined) vectors is tested first. If there's a small SAD, then
          the search ends - Pixel-accurate vectors are refined to half-pel
          vectors by searching the 4 closest half-pel positions (shown as
          X) first:  X XOX  X

          If one of these is better than the pixel-accurate value, then the
          two nearest values in the immediate neighbourhood of the
          pixel-accurate value are also searched, eg the Y values below:

          YXY XOX  X

          This two-stage procedure is followed again in refining to
          quarter- and eighth-pel.  - At each stage of refinement, if we're
          10% worse than the value derived for the predictor, we end the
          search.

          FindBestMatchSubpel: - bailout functions are used

2005-09-27 13:40  tjdwave

        * libdirac_motionest/: me_utils.cpp, me_utils.h: Reorganised
          classes for doing SAD calculations at pixel and sub-pixel
          accuracy. Distinct classes for half-, quarter- and eighth-pixel
          matching have been created. These are present also in 'bailout'
          form so that you can leave the calculation as soon as you know
          that you're not going to beat the best match so far.  These mods
          support speeding up motion estimation, and hence the encoder
          generally.

2005-09-27 12:25  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: Fixed bug# 1291478. Now
          ensuring that dirac_encoder_output returns ENC_STATE_BUFFER when
          data is not loaded into the encoder.

2005-09-27 12:21  asuraparaju

        *
          doc/documentation/code/programmers_guide/decoder_api_functions.htm:
          Bug fix: 1291481. Corrected return value in dirac_parse function
          prototype.

2005-09-27 10:21  tjdwave

        * libdirac_encoder/seq_compress.cpp: The quality measurement model
          can only be calculated correctly if reconstructed compressed
          video is available, which isn't the case if we're not doing local
          decoding. In this case, calculating and outputting these values
          is disabled.

2005-09-27 10:16  tjdwave

        * libdirac_encoder/: frame_compress.cpp, frame_compress.h: Moved
          the analysis of whether or not we have a cut into FrameCompressor
          class and out of motion estimation classes.

          Also, only do motion compensation on L2 frames if local decoding
          is required.  This is because, by definition, L2 frames can't be
          references and so can be left in a partially reconstructed state
          if local decoding isn't required, which improves encoding speed.

2005-09-27 10:12  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Added support for local
          decoding flag, so that local decoding can be avoided for speed.

2005-09-27 10:09  tjdwave

        * libdirac_encoder/comp_compress.cpp: Removed commented-out code.

2005-09-27 10:09  tjdwave

        * libdirac_encoder/comp_compress.cpp: Inverse wavelet transform is
          now only done for L2 frames if local decoding is required. This
          is because L2 frames are (by definition) not used for reference
          and can be left in a partially reconstructed state if local
          decoding isn't needed.

2005-09-27 09:54  tjdwave

        * libdirac_common/mot_comp.cpp: Introduced unbiased rounding into
          calculation of weighting matrices. This allows the subsequent
          rationalisation of the values to be avoided. Also, chroma scale
          factors applied to motion vectors have been replaced by shift
          factors, so that bitshifts can be used instead of divisions for
          greater efficiency.

2005-09-27 09:50  tjdwave

        * libdirac_common/: common.cpp, common.h: Added support for an
          encode params flag indicating whether we're doing local decoding.
          Local decoding can then be omitted for greater efficiency.

2005-09-27 09:44  tjdwave

        * decoder/decmain.cpp: Made timing info only output in verbose
          mode.

2005-09-27 09:43  tjdwave

        * encoder/encmain.cpp: Added timing data for encoding.

2005-09-27 09:40  tjdwave

        * libdirac_common/arith_codec.h: Simplified ArithCodec class so
          that probality intervals aren't used.

2005-09-07 15:29  tjdwave

        * util/encoder_gui/: COPYING, README, diracdata.h, diracgui.cpp,
          diracgui.h, encodebox.cpp, encoder_gui.pro, filesbox.cpp,
          main.cpp, presetbox.cpp, qualitybox.cpp, reportbox.cpp,
          repthread.cpp, repthread.h, tables.cpp, tables.h, videobox.cpp:
          Adding files for Dirac encoder GUI.

2005-09-07 10:41  tjdwave

        * doc/DiracSpecV0.1.doc: Version 0.1 superceded by version 0.9 now
          in CVS.

2005-09-07 10:39  tjdwave

        * doc/DiracSpec0.9.pdf: Added decoder semantics and revised
          bitstream structure.

2005-08-31 14:42  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/quality_monitor.cpp: Added support for lossless
          I-frame and long-GOP coding, with CLI option.

2005-08-23 11:52  asuraparaju

        * ChangeLog: [no log message]

2005-08-23 11:46  asuraparaju

        * NEWS: Added 0.5.3 release notes

2005-08-23 11:14  asuraparaju

        * doc/documentation.html: Having trouble creating a pdf document in
          which MathML is rendered correctly.  Hence a pdf version of the
          Algorithm document cannot be generated at the moment.  Removed
          broken link to Algorithm pdf until this problem can be fixed.

2005-08-22 13:51  asuraparaju

        * configure.ac: Update the help string for enable-mmx configure
          argument to make it clear that MMX opts are enabled by default.
          The user will have to explcitly specify --enable-mmmx=no or
          --disable-mmx to disable MMX opts.

2005-08-19 13:41  asuraparaju

        * extras/patches/: README_transcode-1.0.0_dirac-0.5.x_patch,
          transcode-1.0.0-dirac-0.5.x.patch: Dirac patch for
          transcode-1.0.0. This patch is not a standalone patch and will be
          effective only if the ffmpeg library it uses is built with the
          dirac patch applied.

2005-08-19 13:38  asuraparaju

        * extras/patches/README_MPlayer-1.0pre7_dirac-0.5.x_patch: Updated
          notes for dirac v0.5.3

2005-08-19 13:36  asuraparaju

        * extras/patches/: FFMpeg-20050806-dirac-0.5.x.patch,
          README_FFMpeg-20050806-dirac-0.5.x_patch: Dirac patch for ffmpeg
          cvs snapshot dated 06-Aug-2005. Note that this has been tested
          with CVS versions as late at 16-Aug-2006 but the CVS snapshots
          past 06-Aug-2005 are not available for download on the FFmpeg
          server.

2005-08-19 13:34  asuraparaju

        * extras/patches/README_transcode-0.6.14_dirac-0.5.x_patch: Updated
          for dirac v0.5.3

2005-08-19 13:33  asuraparaju

        * extras/patches/: README_ffmpeg-0.4.9-pre1-dirac-0.5.x_patch,
          ffmpeg-0.4.9-pre1-dirac-0.5.x.patch: Updated patch for
          dirac-0.5.3. Changed license to LGPL. Fixed bug in setting the
          quality factor where the quality factor lookup table was uint8_t
          instead of float which was causing the qf to be truncated to
          uint8_t.  dirac_decode_frame now correctly returns the number of
          bytes it consumed. This is a fix for bug 1246767.

2005-08-18 09:30  tjdwave

        * encoder/encmain.cpp: Clarified CLI error message.

2005-08-18 09:27  tjdwave

        * README: Refactored the encoding instructions so that they're much
          clearer.

2005-08-16 15:37  asuraparaju

        * libdirac_common/arith_codec.h: Removed DOS line-breaks.

2005-08-16 10:37  asuraparaju

        * doc/Makefile.am: Fix problem with install targer in main doc
          directory

2005-08-15 18:21  asuraparaju

        * doc/Makefile.am: Fixed bug where make was failing when built in a
          distribtion

2005-08-15 17:48  asuraparaju

        * doc/: Makefile.am,
          documentation/code/programmers_guide/Makefile.am: Ensured that
          all required files are installed correctly when using the install
          target of make.

2005-08-15 17:18  asuraparaju

        * doc/documentation/: Makefile.am, tools/diagnostics/Makefile.am:
          Changes related to documents directory restructure

2005-08-15 17:11  asuraparaju

        * configure.ac, doc/Makefile.am,
          doc/documentation/algorithm/Makefile.am,
          doc/documentation/algorithm/enhancements/Makefile.am,
          doc/documentation/algorithm/global_motion/Makefile.am,
          doc/documentation/algorithm/upconversion/Makefile.am,
          doc/documentation/tools/Makefile.am: Changes related to
          documentation tree restructure

2005-08-15 16:09  asuraparaju

        * doc/: Makefile.am, documentation/algorithm/Makefile.am,
          documentation/algorithm/algorithm/Makefile.am,
          documentation/code/Makefile.am,
          documentation/code/api/Makefile.am,
          documentation/code/api/dirac_api.doxygen,
          documentation/code/api/dirac_api.doxygen.in,
          documentation/code/api/dirac_api_foot.html,
          documentation/code/api/dirac_api_head.html,
          documentation/code/programmers_guide/Makefile.am: Changes related
          to documentation tree restructure.

2005-08-15 16:03  asuraparaju

        * doc/api/: Makefile.am, dirac_api.doxygen, dirac_api.doxygen.in,
          dirac_api_foot.html, dirac_api_head.html,
          libdirac_encoder_api.doxygen, libdirac_encoder_api_foot.html,
          libdirac_encoder_api_head.html: Removing old files as part of
          Documentation directory restructure. API docs are now generated
          in doc/documentation/code/api/html

2005-08-15 15:56  asuraparaju

        * doc/algorithm/: Makefile.am, algorithm.htm, block_data.htm,
          const_qual.htm, intro.htm, mb_structs.htm, mot_est.htm,
          mot_est_and_comp.htm, mv_coding_arch.htm, mv_data_coding.htm,
          mv_entropy_code.htm, olb_mc.htm, overall_arch.htm,
          quantisation.htm, rdo.htm, rdo_mot_est.htm, subband_rdo.htm,
          temporal_prediction_structures.htm, transform_coding.htm,
          transform_coding_arch.htm, var_size.htm, wlt_transform.htm,
          figs/DC.jpg, figs/DCSAD.jpg, figs/braces.jpg, figs/d.jpg,
          figs/eqA.jpg, figs/eqB.jpg, figs/eqC.jpg, figs/eqD.jpg,
          figs/eqE.jpg, figs/eqF.jpg, figs/eqG.jpg, figs/eqH.jpg,
          figs/eqI.jpg, figs/eqJ.jpg, figs/fig1.jpg, figs/fig10.jpg,
          figs/fig12.jpg, figs/fig13.jpg, figs/fig14.jpg, figs/fig15.jpg,
          figs/fig16.jpg, figs/fig17.jpg, figs/fig18.jpg, figs/fig19.jpg,
          figs/fig2.jpg, figs/fig20.jpg, figs/fig21.jpg, figs/fig22.jpg,
          figs/fig23.jpg, figs/fig24.jpg, figs/fig26.jpg, figs/fig27.jpg,
          figs/fig3.jpg, figs/fig4.jpg, figs/fig5.jpg, figs/fig6.jpg,
          figs/fig7.bmp, figs/fig7.jpg, figs/fig8.jpg, figs/fig9.jpg,
          figs/fp.jpg, figs/m.jpg, figs/nhood.jpg, figs/nhoodresidue.jpg,
          figs/p.jpg, figs/p2.jpg, figs/t.jpg, figs/two.jpg, figs/var.jpg,
          figs/vtilda.jpg, figs/vw.jpg, mv_data_pred.htm, parent_child.htm,
          toc.htm, wlt_coeff_coding.htm: Removing old files as part of
          Documentation directory restructure. Algorithm documentation can
          now be found in doc/documentation/algorithm/algorithm

2005-08-15 15:52  asuraparaju

        * doc/programmers/: Makefile.am, programmers_guide.aux,
          programmers_guide.tex: Removed old files as part of document
          directory restructure

2005-08-15 12:26  asuraparaju

        * doc/documentation/algorithm/enhancements/: 050var_wlt.htm,
          130alt_bin.htm: Checking in missed doc files missed out in
          earlier website docs check in.

2005-08-15 12:22  asuraparaju

        * doc/: browser_compatibility.html, contact.html,
          documentation.html, faq.html, getting_involved.html, index.html,
          licenses.html, overview.html, styles.css, template.html,
          template2.html, todo.html,
          documentation/algorithm/algorithm/block_data.htm,
          documentation/algorithm/algorithm/index.htm,
          documentation/algorithm/algorithm/intra_pred.htm,
          documentation/algorithm/algorithm/intro.htm,
          documentation/algorithm/algorithm/mb_structs.htm,
          documentation/algorithm/algorithm/mot_est.htm,
          documentation/algorithm/algorithm/mot_est_and_comp.htm,
          documentation/algorithm/algorithm/mv_coding_arch.htm,
          documentation/algorithm/algorithm/mv_data_coding.htm,
          documentation/algorithm/algorithm/mv_data_pred.htm,
          documentation/algorithm/algorithm/mv_entropy_code.htm,
          documentation/algorithm/algorithm/olb_mc.xht,
          documentation/algorithm/algorithm/overall_arch.htm,
          documentation/algorithm/algorithm/overall_arch_svg.htm,
          documentation/algorithm/algorithm/parent_child.htm,
          documentation/algorithm/algorithm/quantisation.xht,
          documentation/algorithm/algorithm/rdo.htm,
          documentation/algorithm/algorithm/rdo_mot_est.xht,
          documentation/algorithm/algorithm/subband_rdo.xht,
          documentation/algorithm/algorithm/temporal_prediction_structures.htm,
          documentation/algorithm/algorithm/toc.htm,
          documentation/algorithm/algorithm/transform_coding.htm,
          documentation/algorithm/algorithm/transform_coding_arch.htm,
          documentation/algorithm/algorithm/var_size.htm,
          documentation/algorithm/algorithm/wlt_coeff_coding.xht,
          documentation/algorithm/algorithm/wlt_transform.xht,
          documentation/algorithm/algorithm/figs/fig1.dia,
          documentation/algorithm/algorithm/figs/fig1.gif,
          documentation/algorithm/algorithm/figs/fig1.jpg,
          documentation/algorithm/algorithm/figs/fig1.png,
          documentation/algorithm/algorithm/figs/fig1.svg,
          documentation/algorithm/algorithm/figs/fig10.dia,
          documentation/algorithm/algorithm/figs/fig10.gif,
          documentation/algorithm/algorithm/figs/fig10.jpg,
          documentation/algorithm/algorithm/figs/fig10.png,
          documentation/algorithm/algorithm/figs/fig10.svg,
          documentation/algorithm/algorithm/figs/fig12.dia,
          documentation/algorithm/algorithm/figs/fig12.gif,
          documentation/algorithm/algorithm/figs/fig12.jpg,
          documentation/algorithm/algorithm/figs/fig12.png,
          documentation/algorithm/algorithm/figs/fig12.svg,
          documentation/algorithm/algorithm/figs/fig15.dia,
          documentation/algorithm/algorithm/figs/fig15.gif,
          documentation/algorithm/algorithm/figs/fig15.jpg,
          documentation/algorithm/algorithm/figs/fig15.png,
          documentation/algorithm/algorithm/figs/fig15.svg,
          documentation/algorithm/algorithm/figs/fig16.dia,
          documentation/algorithm/algorithm/figs/fig16.gif,
          documentation/algorithm/algorithm/figs/fig16.jpg,
          documentation/algorithm/algorithm/figs/fig16.png,
          documentation/algorithm/algorithm/figs/fig16.svg,
          documentation/algorithm/algorithm/figs/fig17.dia,
          documentation/algorithm/algorithm/figs/fig17.gif,
          documentation/algorithm/algorithm/figs/fig17.jpg,
          documentation/algorithm/algorithm/figs/fig17.png,
          documentation/algorithm/algorithm/figs/fig17.svg,
          documentation/algorithm/algorithm/figs/fig18.dia,
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          documentation/tools/diagnostics/images/toc.gif,
          images/arrow_right.gif, images/arrow_right_indent.gif,
          images/arrow_up.gif, images/black_pixel.jpg,
          images/dirac_banner.jpg, images/icon_html.gif,
          images/icon_pdf.gif, images/icon_txt.gif, images/icon_zip.gif:
          Committing website documentation to CVS

2005-08-15 11:24  asuraparaju

        * doc/faq.htm: Removing unwanted files in doc restructure

2005-08-15 08:34  tjdwave

        * libdirac_common/arith_codec.h: Added comment explaining look-up
          table operation.

2005-08-12 11:58  asuraparaju

        * configure.ac: Include an extra flag to suppress warnings when
          compiling in debug mode using icc.

2005-08-12 11:57  asuraparaju

        * README, README.developers: MMX optimisations are enabled by
          default. Provided instructions as to how to disable it.

2005-08-12 10:26  tjdwave

        * libdirac_common/motion.cpp: Reinstated transition detection code.
          This means that mode decision is kinder when a transition in the
          motion vector field is detected, giving better quality in motion
          transition areas.

2005-08-11 11:44  tjdwave

        * libdirac_common/arith_codec.h: Added Pete Bleackley's code to use
          a look-up table for division.

2005-08-11 08:21  tjdwave

        * libdirac_common/common.cpp: Added a warning when impossible block
          parameters are being used, and the encoder changes them.

2005-08-10 17:50  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils_mmx.cpp:
          Optimised 5_3 wavelet synthesis function, VHFilter5_3::Synth,
          using MMX instructions resulting in  6 percent speed improvement
          in decoding SD.

2005-08-10 17:48  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fix g++ warning about unused
          variable recode.

2005-08-10 17:47  asuraparaju

        * encoder/encmain.cpp: Print error message and exit if input and
          output file names are the same.  Changed back cif preset option
          to uppercase. Sequence and encoder params currently being used
          are displayed on standard out before actual coding starts.

2005-08-10 17:45  asuraparaju

        * configure.ac: MMX optimisations are enabled by default. Use
          --disable-mmx to explicitly disable them.

2005-08-10 09:13  tjdwave

        * README: Added modified instructions for -qf and advice about
          -width and -height.

2005-08-10 09:06  tjdwave

        * libdirac_motionest/block_match.cpp: Changed motion vector bitrate
          measure so that transitions from foreground to background and
          vice-versa are not penalised.

2005-08-10 09:04  tjdwave

        * libdirac_encoder/seq_compress.cpp: Removed recoding: superfluous
          now there is no CQ coding.

2005-08-10 09:02  tjdwave

        * libdirac_encoder/: quality_monitor.cpp, quality_monitor.h:
          Removed constant quality encoding control mechanism, because it
          worked too poorly for varied sequences. Instead, QualityMonitor
          just monitors quality and encoder control reverts to constant
          Lagrangian parameters.

          The magic numbers chosen may not work for all sequences or all
          video standards but will do for the moment.

2005-08-10 08:57  tjdwave

        * libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp: Changed default wavelet
          filters to fast filters APPROX97 and FIVETHREE.  Wavelet filter
          type is now signalled in the frame header so that changing these
          filters just changes the encoder. (This is now consistent with
          the spec).

2005-08-10 08:50  tjdwave

        * libdirac_common/: motion.cpp, motion.h: Fixed bug with way median
          is calculated. Removed large inline functions from .h and placed
          in .cpp for clarity.

2005-08-10 08:48  tjdwave

        * libdirac_common/mot_comp.cpp: Minor tidy of the way that
          weighting matrices are computed.

2005-08-10 08:44  tjdwave

        * libdirac_common/: common.cpp, common.h: Removed recode parameter.
          Added a CodecParams parameter for the wavelet filter being used,
          to support signalling this in the bitstream, rather than
          selecting by frame type. (This is in the spec).

2005-08-10 08:42  tjdwave

        * libdirac_common/: bit_manager.cpp, bit_manager.h: Added support
          for finding out the current size of bit buffers. This will
          support future CBR implementations and calculations of bit rate
          on the fly.

2005-08-10 08:40  tjdwave

        * libdirac_encoder/: dirac_encoder.cpp, dirac_encoder.h: Removed
          recode option. Set block parameters for HD720 the same as for SD
          to get around bug 1245129.  Need to fix padding and edge issues
          to fully resolve this bug.

2005-08-10 08:27  tjdwave

        * encoder/encmain.cpp: Added feature to print out help if there's
          an unrecognised/unparsed option.  Removed recode feature.

2005-08-01 17:14  asuraparaju

        * libdirac_decoder/dirac_parser.cpp: Speed up set_component
          function using MMX optimisation.

2005-08-01 17:14  asuraparaju

        * libdirac_common/arrays.h: In TwoDArray<T>::Resize, free and
          reallocate data only if the new dimensions differ from the old
          one.

2005-08-01 17:12  asuraparaju

        * win32/VS2003/:
          DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          libdirac_common/libdirac_common.vcproj: Define HAVE_MMX macro for
          mmx enabled targets.

2005-08-01 17:11  asuraparaju

        * util/instrumentation/process_sequence.cpp: Fix uninitialised
          memory read bug reported by Valgrind on reaching end of sequence.

2005-08-01 17:10  asuraparaju

        * unit_tests/: motion_comp_test.cpp, motion_comp_test.h: Test all
          MV precision values - from pixel to an eighth of a pixel.

2005-08-01 17:10  asuraparaju

        * libdirac_common/wavelet_utils_mmx.cpp: Reimplement
          VHFilterApprox9_7::Synth and VHFilter13_5::Synth using MMX
          optimisation.

2005-08-01 17:09  asuraparaju

        * libdirac_common/upconvert_mmx.cpp: Reimplemented
          UpConverter::DoUpConverter function using MMX optimisation.

2005-08-01 17:07  asuraparaju

        * libdirac_common/: mot_comp_mmx.cpp, mot_comp_mmx.h:
          Implementation of QuarterPixel::CompensateBlock function using
          MMX optimisation.

2005-08-01 17:06  asuraparaju

        * libdirac_common/wavelet_utils.cpp: MMX version of Wavelet
          sythesis functions are used if MMX is enabled.

2005-08-01 17:05  asuraparaju

        * libdirac_common/upconvert.cpp: MMX version of DoUpConverter is
          used if MMX is enabled.

2005-08-01 17:04  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp.h: Modified the block
          weights to be of type short to make efficient use of MMX
          instructions. Modified CompensateComponente to make more
          efficient use of data in cache. MMX versions of CompensateBlock
          are used if MMX is enabled.

2005-08-01 17:04  asuraparaju

        * libdirac_common/Makefile.am: Include new mmx optimisation source
          files and headers.

2005-07-26 10:39  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Reduced chroma weighting
          factors in order to increase chroma fidelity - chroma bit rates
          should increase from about 5% of total for 420 to 7.5% of total.
          Changed default block separation for HD720 preset to remove block
          edge overlaps at the top of the screen. This may be returned to
          the old settings when we know why they caused the problem.

2005-07-25 18:01  mservais

        * libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_motionest/global_motion.cpp,
          libdirac_motionest/global_motion.h,
          libdirac_motionest/me_motion_type_decn.cpp,
          libdirac_motionest/me_motion_type_decn.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp: Minor bug fixes and added
          some extra comments

2005-07-22 18:09  asuraparaju

        * configure.ac: updated revision to 0.5.3

2005-07-22 18:09  asuraparaju

        * libdirac_common/bit_manager.h: Updated bitstream version to 0.5
          since the bitstream is no longer compatible with dirac-0.5.2

2005-07-22 12:59  asuraparaju

        * configure.ac: Include macro AC_SYS_LARGEFILE to overcome the 2GB
          i/o file limit.  Fix for bug #1212581.

2005-07-21 09:11  tjdwave

        * encoder/encmain.cpp: Made presets non-case-sensitive.

2005-07-20 10:29  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Fixed bug where block
          parameters were being set incorrectly.

2005-07-20 09:43  tjdwave

        * README: Added text about recode CLI option.

2005-07-19 16:39  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/seq_compress.cpp: Added -recode parameter. If
          -recode [n] is present, then the encoder will recode up to n
          times (ie will encoder up to n+1 times).

2005-07-19 15:17  tjdwave

        * libdirac_common/mv_codec.cpp,
          libdirac_motionest/me_mode_decn.cpp: Fixed bug 1240709. Common
          mode is now used to reduce encoding of prediction modes. Common
          mode was also being set incorrectly in the motion estimation
          process, which caused divergence between the encoder and decoder
          values.  Since common mode wasn't used, this bug was masked
          before. Both now fixed.

2005-07-08 10:26  tjdwave

        * libdirac_common/: upconvert.cpp, upconvert.h: Incorporated patch
          1211899. This tidies up the code and makes it confirm to dirac
          coding conventions, and also uses a smaller filter. This commit
          differs from the patch in that the filter is not reduced to 6
          taps but is reducted to 10 taps instead.  In the future, variable
          filter coefficients may be supported via templated polymorphism.

2005-06-22 17:52  mservais

        * libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_motionest/filter_weighted_local.cpp,
          libdirac_motionest/global_motion.cpp,
          libdirac_motionest/global_motion.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_motion_type_decn.cpp,
          libdirac_motionest/me_motion_type_decn.h,
          libdirac_motionest/model_affine.cpp,
          libdirac_motionest/model_affine.h,
          libdirac_motionest/model_projective.cpp,
          libdirac_motionest/model_projective.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp: When using global motion (but
          not exclusively global motion), the global motion decisions can
          now be flagged either per Prediction Unit or per Macro-Block.

          Also, the use of a Common Mode for each Macro-Block is now
          possible. (This had not been fully implemented before.)

2005-06-10 15:15  tjdwave

        * libdirac_encoder/quality_monitor.cpp,
          libdirac_motionest/block_match.cpp: Fixed bug with computing MV
          costs. Incorporated patch 1216297 for quality measurement.

2005-06-10 11:52  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Changed default block height
          and width for motion compensation to 24 by 24 pixels from 20 by
          20. Separation remains 16 by 16. The result is reduced blockiness
          in areas of poor motion prediction. Downside is slower encoder,
          but the block parameters are merely scaled-up versions of the SD
          parameters.

2005-05-26 19:48  asuraparaju

        * extras/patches/ffmpeg-0.4.9-pre1-dirac-0.5.x.patch: Fixed bug
          1209053. Frame size parameters are now fetched from the AV
          context before setting frame size. Also fixed a bug where quality
          factor was not being set correctly.

2005-05-26 16:20  stuart_hc

        * tests/samples.at: Fix bug 1209017: use -width/-height instead of
          -x/-y

2005-05-26 16:01  stuart_hc

        * encoder/encmain.cpp: Fix bug 1209017: use -width/-height instead
          of -x/-y Also fix SEGV when incorrect -cformat parameter is
          passed.

2005-05-26 15:59  stuart_hc

        * README: Fix bug 1209017: use -width/-height instead of -x/-y

2005-05-25 14:30  asuraparaju

        * ChangeLog: [no log message]

2005-05-25 13:51  asuraparaju

        * README.release: Add ffmpeg patch to checklist

2005-05-25 13:43  asuraparaju

        * NEWS: Included dirac-0.5.2 release notes

2005-05-25 13:40  asuraparaju

        * AUTHORS: Updated contibutor list

2005-05-25 13:06  asuraparaju

        * extras/patches/: MPlayer-1.0pre7_dirac-0.5.x.patch,
          README_MPlayer-1.0pre7_dirac-0.5.x_patch,
          README_ffmpeg-0.4.9-pre1-dirac-0.5.x_patch,
          README_transcode-0.6.14_dirac-0.5.x_patch,
          ffmpeg-0.4.9-pre1-dirac-0.5.x.patch,
          transcode-0.6.14-dirac-0.5.x.patch: Patches to MPlayer, ffmped
          and transcode to add Dirac support to these tools.

2005-05-24 08:28  tjdwave

        * libdirac_encoder/seq_compress.cpp: Fixed bug with count increment
          so that fast adaption takes place on first recoding rather than
          second.

2005-05-20 15:30  asuraparaju

        * README: Modified this file to remove all references to image
          header files which are no longer required.

2005-05-20 15:25  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fix minor glitches in verbose
          output

2005-05-20 15:02  asuraparaju

        * win32/VS2003/dirac.sln: Remove MakeHeader from list of targets as
          contents of header files have been replaced with command line
          arguments.

2005-05-20 15:01  asuraparaju

        * encoder/encmain.cpp, libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/seq_compress.cpp: Fix bugs in bit rate reporting

2005-05-20 14:05  asuraparaju

        * Makefile.am, configure.ac: make_header utility is no longer
          required. So removing picheader directory from list of targets.

2005-05-20 13:44  asuraparaju

        * tests/: colourbars.at, create_dirac_testfile.pl, samples.at:
          Remove all references to make_header. Sequence header information
          is now passed to encoder on the command line.

2005-05-20 13:43  asuraparaju

        * util/instrumentation/instrmain.cpp: The encoder now writes
          sequence header information to the instrumentation output file.
          So read sequence info from instrumentation file.

2005-05-20 13:42  asuraparaju

        * encoder/encmain.cpp: Fix g++ errors. Write the sequence header
          information to the instrumentation file.

2005-05-20 13:41  asuraparaju

        * libdirac_common/: pic_io.cpp, pic_io.h: Delete all code relating
          to header file creation/reading. All sequence parameters are now
          supplied to encoder via the command line.

2005-05-19 12:23  dirac_dev

        * decoder/decmain.cpp: Removed any references to header files.

2005-05-19 12:15  dirac_dev

        * encoder/encmain.cpp: Removed requirement of a header file. All
          parameters are handled through command-line options. Most options
          will still be set by the pre-set option, although they can be
          overriden.

2005-05-19 12:03  asuraparaju

        * unit_tests/motion_comp_test.cpp: Update motion compensation tests
          to use the helper function in MotionCompensator to instantiate
          the MotionCompensator sub-class for the mv precision value
          selected.

2005-05-19 11:56  asuraparaju

        * libdirac_decoder/: frame_decompress.cpp, frame_decompress.h: Now
          reads the MV precision in the frame header.

2005-05-19 11:35  asuraparaju

        * libdirac_encoder/frame_compress.cpp: Writing the motion vector
          precision value as part of frame header. Default mv precision is
          set to 2 i.e. quarter pixel.

2005-05-19 11:25  asuraparaju

        * libdirac_motionest/me_utils_mmx.cpp: Fixed C/C++ aliasing
          violations that caused a performance slow down when compiled with
          gcc 4.0.0

2005-05-19 11:24  asuraparaju

        * libdirac_motionest/me_utils.h: Fixed gcc 4.0.0 warnings

2005-05-19 11:23  asuraparaju

        * libdirac_common/bit_manager.h: Updated bitstream version to 0.4

2005-05-19 11:21  asuraparaju

        * libdirac_common/: common.cpp, common.h: Added a field to
          CodecParams class for motion vector precision. A value of 'n'
          implies a precision of (2**-n)i pixel. i.e. a value of 2 implies
          an mv precision of 1/4 i.e. quarter pixel.

2005-05-19 11:16  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp.h: Added support for
          multiple levels of motion vector precision - pixel, half pixel,
          quarter pixel and multiple pixel. The main MotionCompensator
          class is an abstract class. Each of its sub-classes define the
          CompensateBlock function to a particular level of motion
          precision.

2005-05-19 11:12  asuraparaju

        * libdirac_motionest/: me_mode_decn.cpp, me_subpel.cpp,
          motion_estimate.cpp: Motion estimation modified to support
          variable motion vector precision. The implementation is
          preliminary, and should be modified later: vectors are scaled by
          a factor 8 to give a maximum of eighth-pel accuracy. Generic
          block matching functions are used at this accuracy even though
          true accuracy will be less - the subpixel search is merely
          truncated.

          In the future, half-pixel and quarter-pixel block matching
          functions should be written, just as for motion compensation as
          these will be faster.

2005-05-13 09:40  mservais

        * libdirac_common/mot_comp.cpp, libdirac_common/motion.cpp,
          libdirac_common/mv_codec.cpp,
          libdirac_motionest/me_motion_type_decn.cpp,
          libdirac_motionest/me_motion_type_decn.h,
          libdirac_motionest/motion_estimate.cpp,
          win32/VS2003/ConversionUtils/BMPtoRGB/Debug/BuildLog.htm,
          win32/VS2003/ConversionUtils/BMPtoRGB/Debug/vc70.idb,
          win32/VS2003/ConversionUtils/BMPtoRGB/Debug/vc70.pdb: Prediction
          units can now use either global or block motion. (Decision based
          on similarity of global and block motion vectors.)

2005-05-11 10:13  tjdwave

        * libdirac_common/wavelet_utils.cpp: Fixed -pedantic errors on
          unused variables. Replaced dynamic built-in array (which violates
          ISO C++) with array class.

2005-05-05 15:10  tjdwave

        * unit_tests/wavelet_utils_test.cpp: Added support for testing all
          different wavelet transforms for invertibility.

2005-05-04 14:35  tjdwave

        * libdirac_common/common.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h, libdirac_common/band_codec.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: Modifications to support
          different wavelet filter types.

          wavelet_utils.{cpp,h} Added three new filter types with lifting
          implementations, all much faster than Daubechies (9,7).
          Refactored the code to support filter selection in constructor of
          WaveletTransform class. Added method to correctly output DC band
          expected values. Separated off coefficient interleaving and
          deinterleaving. Setting of subband weights is now a
          WaveletTransform function, as noise weighting factors depend on
          the filter choice.

          band_codec.cpp Removed literal constant and used 0 instead for
          top-left DC value prediction.

          comp_compress.cpp, comp_decompress.cpp Changed default filters
          from Daubechies (9,7) to faster filters which perform almost as
          well. This is a temporary mod. It is intended to be able to
          select fast filters via the CLI and for wavelet filter choices to
          be signalled in frame headers. This will be done in later
          refactoring to converge with the bitstream syntax in terms of
          frame types and header information.

2005-05-04 12:13  mservais

        * libdirac_motionest/: me_motion_type_decn.cpp,
          me_motion_type_decn.h: Introduces decision as to whether
          individual prediction units should use Global Motion or not. (Not
          complete yet!)

2005-05-04 12:06  mservais

        * libdirac_common/common.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_motionest/motion_estimate.cpp,
          win32/VS2003/libdirac_common/libdirac_common.vcproj,
          win32/VS2003/libdirac_motionest/libdirac_motionest.vcproj:
          Introduces decision as to whether individual prediction units
          should use Global Motion or not. (Not complete yet!)

2005-04-13 16:36  asuraparaju

        * libdirac_common/arrays.h: New constants PIXEL_VALUE_MIN and
          PIXEL_VALUE_MAX to define the upper and lower limits on pixel
          values.

2005-04-13 16:28  asuraparaju

        * libdirac_common/frame.cpp: Included an MMX implementation of
          Frame::ClipComponent to achieve a decoding speedup in conjuction
          with mot_comp.cpp changes. Also using pointer arithmetic insted
          of index operator when accessing TwoDArray objects.

2005-04-13 16:25  asuraparaju

        * libdirac_motionest/me_utils_mmx.cpp: Using pointer arithmetic
          instead of the index operator when using TwoDArray objects to get
          an overall slight improvement in encoding speed.

2005-04-13 16:16  asuraparaju

        * libdirac_common/mot_comp.cpp: Partially applied patch 1151976.
          Using pointer arithmetic instead of index operator to access
          TwoDArray objects. A few other tweaks to improve cache locality.

2005-04-13 16:09  asuraparaju

        * libdirac_encoder/quant_chooser.cpp: Fix errors reported by
          MIPSPro C++ compiler regarding not specifiying the namespace for
          math functions like floor and log.

2005-04-13 16:06  asuraparaju

        * libdirac_common/arith_codec.h: Fix g++ warning re unused
          variables.

2005-04-13 16:06  asuraparaju

        * configure.ac: Included icc compile time flag -wr964 to treat
          warning 964 as a remark when mmx is enabled.

2005-04-12 11:56  timborer

        * doc/DiracSpecV0.1.doc: Modifed default Motion Vector precision
          (now 1/4 pel), added note that max MV precision should be
          included in Level. Corrected typos.

2005-04-06 15:31  tjdwave

        * libdirac_common/: band_codec.cpp, band_codec.h, mv_codec.cpp,
          mv_codec.h: Oops. Correct files now uploaded.

2005-04-06 15:28  tjdwave

        * libdirac_common/: band_codec.cpp, band_codec.h, mv_codec.cpp,
          mv_codec.h: Changes to reflect mods to arith_codec.h: in
          particular, Update is removed as this is no longer a virtual
          function. Instead the base class function is called directly in
          the encoding/decoding engines.

2005-04-06 15:07  tjdwave

        * libdirac_common/arith_codec.h: Speed-up to arithmetic coding and
          decoding, using probability range renormalisation to avoid
          unnecessary divides.

2005-04-05 14:56  timborer

        * doc/DiracSpecV0.1.doc: Initial draft of Dirac spec. This is not a
          specification of what we have but a proposed spec for what we
          want. At the moment it focuses on syntax rather than semantics.
          It is inkorect and incomplet.

2005-03-17 11:21  mservais

        * libdirac_motionest/motion_estimate.cpp: Example with "Global
          Motion Only" set to 1.

2005-03-17 11:01  mservais

        * libdirac_motionest/: filter_weighted_local.cpp,
          global_motion.cpp, me_mode_decn.cpp, model_affine.cpp,
          model_affine.h, model_global_motion.h, model_projective.h,
          motion_estimate.cpp, reject_intensity.cpp, reject_sad.cpp:
          Initial implementation of Global Motion. Allows for Global Motion
          Only switch for each frame. If this is set, only the Global
          Motion Parameters are coded - i.e. no block motion vectors are
          coded.

2005-03-17 10:57  mservais

        * libdirac_common/common.h, libdirac_common/mot_comp.cpp,
          libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h: Initial implementation of
          Global Motion. Allows for Global Motion Only switch for each
          frame. If this is set, only the Global Motion Parameters are
          coded - i.e. no block motion vectors are coded.

2005-03-17 10:43  mservais

        * libdirac_motionest/reject_local.cpp: Initial implementation of
          Global Motion. Allows for Global Motion Only switch for each
          frame. If this is set, only the Global Motion Parameters are
          coded - i.e. no block motion vectors are coded.

2005-03-17 10:34  mservais

        * libdirac_motionest/global_motion.h: Initial Implementation for
          Global Motion. Allows a Global Motion Only switch for each frame.
          If this is set, only the Global Motion Parameters are coded -
          i.e. no block motion vectors are coded.

2005-03-11 13:43  asuraparaju

        * libdirac_common/: common.cpp, common.h: Fixed bug 1159031.
          dirac_quantiser_lists is not an extern anymore and is limited to
          file scope.

2005-03-04 14:55  tjdwave

        * libdirac_common/arrays.h, AUTHORS: Added Mike Ferenduros' mods to
          arrays, so that memory allocation is always contiguous. Also
          added him to list of contributors.

2005-02-17 14:07  asuraparaju

        * ChangeLog: [no log message]

2005-02-17 13:05  asuraparaju

        * NEWS: Included Dirac 0.5.1 release notes

2005-02-17 13:05  asuraparaju

        * README.release: Included Dirac Directshow filter and Mplayer
          patch to checklist

2005-02-17 13:03  asuraparaju

        * README.developers: Modified MMX optimisation implementation
          guidelines to use Intrinsics. Included notes on conducting
          end-to-end test using 'make check' and create_dirac_testfile.pl

2005-02-17 13:02  asuraparaju

        * README: Included notes on how to enable MMX optimisations and how
          to use the data generation script create_dirac_testfile.pl

2005-02-17 12:23  asuraparaju

        * picheader/headmain.cpp: Not returning an exit code when usage
          info is displayed.

2005-02-17 12:22  asuraparaju

        * tests/create_dirac_testfile.pl: Fix compilation errors.

2005-02-17 12:21  asuraparaju

        * tests/Makefile.am: Include scrip create_dirac_testfile.pl in
          install list to bin directory

2005-02-16 17:52  asuraparaju

        * libdirac_common/bit_manager.h: the bitstream has changed. So
          updated bitstream version so that an error is reported if
          attempting to decode  older versions of Dirac files.

2005-02-16 17:48  asuraparaju

        * extras/patches/: MPlayer-1.0pre6a_dirac-0.5.x.patch,
          README_MPlayer-1.0pre6a_dirac-0.5.x_patch: Mplayer 1.0pre6a patch
          to enable Dirac support in MPlayer

2005-02-16 17:42  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/: DiracSplitter.cpp,
          DiracSplitter.def: Dirac direct show filter files

2005-02-16 17:40  asuraparaju

        * extras/dirac_dshow/src/basesplitter/: BaseSplitterFileEx.cpp,
          BaseSplitterFileEx.h: Direct show filter files

2005-02-16 17:19  asuraparaju

        * extras/dirac_dshow/: DiracSplitter.sln, INSTALL,
          README.developers, include/IChapterInfo.h,
          include/IKeyFrameInfo.h, include/moreuuids.h,
          include/matroska/matroska.h, include/winddk/devioctl.h,
          include/winddk/ntddcdrm.h, include/winddk/ntddstor.h,
          src/basesplitter/AsyncReader.cpp, src/basesplitter/AsyncReader.h,
          src/basesplitter/BaseSplitter.cpp,
          src/basesplitter/BaseSplitter.h,
          src/basesplitter/BaseSplitterFile.cpp,
          src/basesplitter/BaseSplitterFile.h,
          src/basesplitter/basesplitter.vcproj,
          src/basesplitter/stdafx.cpp, src/basesplitter/stdafx.h,
          src/diracsplitter/DiracSplitter.h,
          src/diracsplitter/DiracSplitter.rc,
          src/diracsplitter/DiracSplitter.vcproj,
          src/diracsplitter/DiracSplitterFile.cpp,
          src/diracsplitter/DiracSplitterFile.h,
          src/diracsplitter/resource.h, src/diracsplitter/stdafx.cpp,
          src/diracsplitter/stdafx.h, src/dsutil/DSUtil.cpp,
          src/dsutil/DSUtil.h, src/dsutil/MediaTypes.cpp,
          src/dsutil/MediaTypes.h, src/dsutil/NullRenderers.cpp,
          src/dsutil/NullRenderers.h, src/dsutil/a_yuv2rgb.asm,
          src/dsutil/a_yuvtable.asm, src/dsutil/convert_a.asm,
          src/dsutil/dsutil.vcproj, src/dsutil/stdafx.cpp,
          src/dsutil/stdafx.h, src/dsutil/text.cpp, src/dsutil/text.h,
          src/dsutil/vd.cpp, src/dsutil/vd.h, src/switcher/AudioSwitcher.h,
          src/switcher/StreamSwitcher.h: Patches and DirectShow filter
          related files

2005-02-15 11:39  asuraparaju

        * win32/VS2003/: dirac.sln, ConversionUtils/ConversionUtils.vcproj,
          ConversionUtils/BMPtoRGB/BMPtoRGB.vcproj,
          ConversionUtils/RGBtoBMP/RGBtoBMP.vcproj,
          ConversionUtils/RGBtoUYVY/RGBtoUYVY.vcproj,
          ConversionUtils/RGBtoYUV411/RGBtoYUV411.vcproj,
          ConversionUtils/RGBtoYUV420/RGBtoYUV420.vcproj,
          ConversionUtils/RGBtoYUV422/RGBtoYUV422.vcproj,
          ConversionUtils/RGBtoYUV444/RGBtoYUV444.vcproj,
          ConversionUtils/UYVYtoRGB/UYVYtoRGB.vcproj,
          ConversionUtils/YUV411toRGB/YUV411toRGB.vcproj,
          ConversionUtils/YUV420toRGB/YUV420toRGB.vcproj,
          ConversionUtils/YUV422toRGB/YUV422toRGB.vcproj,
          ConversionUtils/YUV444toRGB/YUV444toRGB.vcproj,
          ConversionUtils/libconv_common/libconv_common.vcproj,
          DecodeDirac/DecodeDirac.vcproj, DiracDecoder/DiracDecoder.vcproj,
          DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          DiracEncoder/DiracEncoder.vcproj,
          DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          EncodeDirac/EncodeDirac.vcproj, Everything/Everything.vcproj,
          InstrumentDirac/InstrumentDirac.vcproj,
          InstrumentDirac/libdirac_instrument/libdirac_instrument.vcproj,
          MakeHeader/MakeHeader.vcproj,
          libdirac_common/libdirac_common.vcproj,
          libdirac_motionest/libdirac_motionest.vcproj: Added new targets
          for building with MMX optimisation enabled.

2005-02-15 11:38  asuraparaju

        * configure.ac: Update release id to 0.5.1. Added flag to enable
          MMX optimisation and test for checking if MMX optimising is
          available. Default opt level changed to -O3 for g++ and icc.
          Added extra optimisation flags when compiling with g++.  Fixed
          cppunit availability check to report linker errors so that shared
          library mismatches are trapped.

2005-02-15 11:33  asuraparaju

        * encoder/encmain.cpp: Modified error messages to output more
          information.

2005-02-15 11:31  asuraparaju

        * tests/: Makefile.am, create_dirac_testfile.pl, samples.at,
          testsuite.at: A new script to generate dirac test data of
          different chroma formats from source RGB format input data. A new
          testcase, samples.at, which looks for Dirac test data in the
          directory specified by the env variable DIRAC_INPUT_DATA_DIR.
          The script and testcase are useful to run end-to-end tests using
          all input formats supported by Dirac.

2005-02-15 11:21  asuraparaju

        * libdirac_motionest/: Makefile.am, me_utils.cpp, me_utils_mmx.cpp,
          me_utils_mmx.h: Using MMX to compute block differences. Applied a
          modified version of patch 1081743.

2005-02-15 11:15  asuraparaju

        * libdirac_common/: band_codec.h, wavelet_utils.h: Fixed doxygen
          warnings

2005-02-15 11:13  asuraparaju

        * acinclude.m4: File containing user defined autoconf macro
          functions specific to Dirac project

2005-02-08 14:02  tjdwave

        * libdirac_common/arith_codec.h: Replaced delete with delete[] in
          destructor. Added clean-up in data reading so that the class can
          be re-used without causing a memory leak.

2005-02-07 12:12  tjdwave

        * libdirac_encoder/comp_compress.cpp,
          libdirac_decoder/comp_decompress.cpp: Fixed bug where blocks of
          coefficients with zero dimensions were being generated. There's
          now a minimum size of 4x4 coefficients for a code block.

2005-02-02 15:29  asuraparaju

        * libdirac_common/arith_codec.h, libdirac_common/band_codec.cpp,
          libdirac_common/mv_codec.cpp,
          libdirac_decoder/comp_decompress.cpp: Fixed g++ warnings when
          compiled in debug mode (i.e. configure with flag --enable-debug)

2005-02-02 15:24  dirac_dev

        *
          win32/VS2003/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj:
          Added quant_chooser.cpp/h

2005-02-02 14:50  tjdwave

        * libdirac_decoder/: comp_decompress.cpp, comp_decompress.h: Added
          support for multiple code blocks/quantisers. Added separate
          function for reading header.

2005-02-02 14:49  tjdwave

        * libdirac_encoder/Makefile.am: Modded to add quant_chooser.{cpp,h}

2005-02-02 14:47  tjdwave

        * libdirac_encoder/: comp_compress.cpp, comp_compress.h,
          quality_monitor.cpp, quality_monitor.h: Removed quantiser
          selection from comp_compress to another class.

2005-02-02 14:46  tjdwave

        * libdirac_encoder/: quant_chooser.cpp, quant_chooser.h: Modified
          author details.

2005-02-02 14:44  tjdwave

        * libdirac_encoder/: quant_chooser.cpp, quant_chooser.h: Added
          classes to handle selecting quantisers. These allow a single
          quantiser per subband to be chosen, or alternatively one for each
          code block.

2005-02-02 14:42  tjdwave

        * libdirac_common/: band_codec.cpp, common.cpp, mv_codec.cpp,
          wavelet_utils.cpp, arith_codec.h, band_codec.h, common.h,
          mv_codec.h, wavelet_utils.h: Modified wavelet coeff coding to
          code blocks of coefficients. with skip flags if all coefficients
          are zero. Wavelet coefficient coding has reduced use of class
          member variables for clarity. The arithmetic coding and decoding
          engines have been modified to improve speed and code
          organisation. The decoder now reads in all the data before
          beginning decoding. Coding of motion vector data has been tidied,
          and modified to accommodate changes in the arithmetic coding
          engine. Block prediction modes are now coded slightly
          differently, which improves compression performance.

2005-01-24 16:58  tjdwave

        * libdirac_common/common.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_motionest/me_mode_decn.cpp:
          Changed prediction of block modes to be bitwise - bit 0 indicates
          the presence of a Ref1 MV, and bit 1 indicated the presence of a
          Ref2 MV. This is also reflected in selecting modes in motion
          estimation.

2005-01-24 16:06  tjdwave

        * libdirac_motionest/me_mode_decn.cpp: Re-instituted bi-directional
          prediction, inadvertently commented out.

2005-01-24 14:43  tjdwave

        * libdirac_motionest/: block_match.cpp, block_match.h,
          me_subpel.cpp: Made local motion vector variance a member
          function of the block matcher, and made the cut-off limits depend
          on the picture size. This improves performance at HD by 4% or so.

2005-01-18 19:13  mservais

        * libdirac_motionest/global_motion.h: Testing CVS (Marc)

2005-01-18 18:20  mservais

        * libdirac_motionest/global_motion.h: Testing CVS (Marc)

2005-01-18 17:42  mservais

        * libdirac_motionest/global_motion.cpp: Marc: Testing that CVS
          works OK

2005-01-12 17:50  asuraparaju

        * libdirac_motionest/global_motion.h: Forgot to add this file with
          the earlier lot of global motion files

2005-01-12 16:18  asuraparaju

        * win32/VS2003/libdirac_motionest/libdirac_motionest.vcproj: Added
          global motion related files to the project

2005-01-12 15:30  asuraparaju

        * libdirac_motionest/: Makefile.am, filter_weighted_local.cpp,
          filter_weighted_local.h, global_motion.cpp, model_affine.cpp,
          model_affine.h, model_global_motion.cpp, model_global_motion.h,
          model_projective.cpp, model_projective.h, motion_estimate.cpp,
          refine_motion_vector_field.cpp, refine_motion_vector_field.h,
          reject_edge.cpp, reject_edge.h, reject_intensity.cpp,
          reject_intensity.h, reject_local.cpp, reject_local.h,
          reject_motion_vector_outliers.cpp,
          reject_motion_vector_outliers.h, reject_outlier.cpp,
          reject_outlier.h, reject_sad.cpp, reject_sad.h, reject_value.cpp,
          reject_value.h, test_global_motion_model.cpp,
          test_global_motion_model.h, test_mv_sad.cpp, test_mv_sad.h:
          Global motion estimation related new files and mods to existing
          files

2004-12-22 11:59  tjdwave

        * libdirac_motionest/block_match.cpp: Fixed bug with assigning
          costs to lists of vectors, reported by Eric Rannaud.

2004-12-10 15:28  asuraparaju

        * libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          util/instrumentation/libdirac_instrument/Makefile.am: Fixed bug
          1081435.

2004-12-10 15:21  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am, picheader/Makefile.am,
          util/instrumentation/Makefile.am: Link in math library, libm, if
          required.

2004-12-10 15:20  asuraparaju

        * tests/colourbars.at: Not ignoring standard error so that errors
          are trapped when running the test suite.

2004-12-10 15:18  asuraparaju

        * encoder/encmain.cpp: Print the bitrate to standard output even
          when not in verbose mode.

2004-12-10 15:16  asuraparaju

        * libdirac_encoder/comp_compress.cpp: Included Peter Meerwald in
          list of contributors

2004-12-10 15:13  asuraparaju

        * libdirac_encoder/comp_compress.cpp: Fixed errors reported by
          MIPSpro 7.4 C++ compiler. Applied patch 1081664 which improves
          encoding speed by 10-15%.

2004-12-10 15:04  asuraparaju

        * configure.ac: Added check to see if math library, libm, needs to
          be linked. Added test to check for C++ header files that are not
          included in old versions of C++ compilers. Applied patch 1081730.

2004-12-10 14:59  asuraparaju

        * bootstrap: Exit with a failure message if automake fails.

2004-12-01 16:21  asuraparaju

        * win32/VS2003/MakeHeader/MakeHeader.vcproj: MakeHeader.exe now is
          correctly being created in win32/VS2003/bin/<build-type>
          directory.

2004-12-01 14:45  asuraparaju

        * ChangeLog: [no log message]

2004-12-01 14:40  asuraparaju

        * NEWS: Included 0.5.0 release notes

2004-12-01 14:39  asuraparaju

        * README: Updated Section 3 (Building and installing) to reflect
          changes to building the codec under UNIX-like envoroments and MS
          Windows. Added sub-section on how to build Dirac coder on MS
          Windows platform using MS VC++ .NET 2003. Updated make_header
          usage  in the File Formats suc-section. Update encoder app usage
          information.

2004-12-01 14:35  asuraparaju

        * README.developers: New sub-section on namespaces to be used in
          Dirac. Added note on new test target 'valgrind-check'

2004-12-01 14:32  asuraparaju

        * TODO: Replaced contents with link to the TODO list on Dirac
          homepage

2004-12-01 14:13  timborer

        * util/conversion/YUV420toRGB.cpp: Fixed bug 1050816.

2004-11-29 12:54  asuraparaju

        * libdirac_common/arith_codec.h, libdirac_common/arrays.h,
          libdirac_common/band_codec.h, libdirac_common/bit_manager.h,
          libdirac_common/common.h, libdirac_common/mot_comp.h,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.h,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.h,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.h: Fix warnings reported by doxygen

2004-11-26 13:47  asuraparaju

        * misc/xparam-1.22-gcc-3.4.0.patch: xparam package not used hence
          removed this file from repository

2004-11-26 13:43  asuraparaju

        * windows/dirac/: dirac.dsw, libdirac_common/libdirac_common.dsp,
          libdirac_decoder/libdirac_decoder.dsp,
          libdirac_encoder/libdirac_encoder.dsp,
          libdirac_motionest/libdirac_motionest.dsp: Removing older VS
          files that are no longer supported

2004-11-26 13:36  asuraparaju

        * unit_tests/: frames_test.cpp, frames_test.h,
          motion_comp_test.cpp, motion_comp_test.h: Unit test for Motion
          Compensation

2004-11-26 13:36  asuraparaju

        * unit_tests/Makefile.am: Added Motion compensation unit test
          related files to list of targets

2004-11-26 13:28  asuraparaju

        * configure.ac: Modified check for cppunit test framework to ensure
          that it can run without errors. This was required because unit
          tests fail when built with icc. This is a temporary measure until
          it is determined why unit tests fail when built with icc on
          linux.

2004-11-26 13:23  asuraparaju

        * AUTHORS: Updated list of contributors

2004-11-26 13:22  asuraparaju

        * Makefile.am: Removed win directory from distribution list as
          build with nmake is no longer supported. Added win32 to list of
          target subdirectories

2004-11-26 13:13  asuraparaju

        * win32/: Makefile.am, VS2003/Makefile.am, VS2003/dirac.sln,
          VS2003/ConversionUtils/ConversionUtils.vcproj,
          VS2003/ConversionUtils/BMPtoRGB/BMPtoRGB.vcproj,
          VS2003/ConversionUtils/RGBtoBMP/RGBtoBMP.vcproj,
          VS2003/ConversionUtils/RGBtoUYVY/RGBtoUYVY.vcproj,
          VS2003/ConversionUtils/RGBtoYUV411/RGBtoYUV411.vcproj,
          VS2003/ConversionUtils/RGBtoYUV420/RGBtoYUV420.vcproj,
          VS2003/ConversionUtils/RGBtoYUV422/RGBtoYUV422.vcproj,
          VS2003/ConversionUtils/RGBtoYUV444/RGBtoYUV444.vcproj,
          VS2003/ConversionUtils/UYVYtoRGB/UYVYtoRGB.vcproj,
          VS2003/ConversionUtils/YUV411toRGB/YUV411toRGB.vcproj,
          VS2003/ConversionUtils/YUV420toRGB/YUV420toRGB.vcproj,
          VS2003/ConversionUtils/YUV422toRGB/YUV422toRGB.vcproj,
          VS2003/ConversionUtils/YUV444toRGB/YUV444toRGB.vcproj,
          VS2003/ConversionUtils/libconv_common/libconv_common.vcproj,
          VS2003/DecodeDirac/DecodeDirac.vcproj,
          VS2003/DiracDecoder/DiracDecoder.vcproj,
          VS2003/DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          VS2003/DiracEncoder/DiracEncoder.vcproj,
          VS2003/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          VS2003/EncodeDirac/EncodeDirac.vcproj,
          VS2003/Everything/Everything.vcproj,
          VS2003/InstrumentDirac/InstrumentDirac.vcproj,
          VS2003/InstrumentDirac/libdirac_instrument/libdirac_instrument.vcproj,
          VS2003/MakeHeader/MakeHeader.vcproj,
          VS2003/libdirac_common/libdirac_common.vcproj,
          VS2003/libdirac_motionest/libdirac_motionest.vcproj: Solution and
          Project files for building Dirac using MS Visual Studio 2003

2004-11-25 13:42  asuraparaju

        * decoder/decmain.cpp, encoder/encmain.cpp: Modified to use only
          public API and none of the C++ classes

2004-11-25 13:41  asuraparaju

        * libdirac_common/dirac_types.h: Turn off _declspec for non-windows
          builds and windows static builds

2004-11-24 11:41  tjdwave

        * doc/algorithm/rdo_mot_est.htm: Remaining mods to algorithmic
          docs.

2004-11-24 11:27  tjdwave

        * doc/algorithm/: algorithm.htm, const_qual.htm, intra_pred.htm,
          intro.htm, quantisation.htm, subband_rdo.htm: Mods to algorithm
          docs; intra_pred.htm removed.

2004-11-22 14:23  asuraparaju

        * ChangeLog: [no log message]

2004-11-22 14:15  asuraparaju

        * AUTHORS: Updated list of contributors.

2004-11-22 14:05  asuraparaju

        * libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/cmd_line.cpp, libdirac_common/cmd_line.h,
          libdirac_common/common_types.h,
          libdirac_common/dirac_assertions.h, libdirac_common/frame.h,
          libdirac_common/golomb.cpp, libdirac_common/golomb.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_common/wavelet_utils.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_cppparser.h,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h: Added namespace support. All
          core Dirac functionality is now in namespace dirac.

2004-11-22 13:58  asuraparaju

        * bootstrap: Added libtool support

2004-11-22 13:57  asuraparaju

        * dirac.pc.in: After the library restructuring, only two libraries
          are required - the encoder and decoder libraries.

2004-11-22 13:57  asuraparaju

        * configure.ac: Added libtool support to build libraries.

2004-11-22 13:56  asuraparaju

        * INSTALL: Minor changes related to the main configure file and the
          flags to use

2004-11-22 13:56  asuraparaju

        * README: Added descrition of additional flags available at
          configure time

2004-11-22 13:54  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          util/conversion/common/Makefile.am,
          util/instrumentation/Makefile.am,
          util/instrumentation/libdirac_instrument/Makefile.am: Instead of
          4 libraries only two libraries are now built and installed -
          libdirac_encoder and libdirac_decoder. Only the public "C" API
          headers and libraries are copied to the installation directories
          when 'make install' is used.  Now using libtool to build
          libraries. On GNU/Linux and UNIX-like platforms, shared and
          static versions of the exported libraries are built.      On MS
          Windows platforms, only shared libraries or static libraries can
          be built but not both.

2004-11-22 13:51  asuraparaju

        * tests/: Makefile.am, colourbars.at, unittests.at: Added valgrind
          support while running tests. The 'make valgrind-check' command
          now runs valgrind memory checks on all the tests. Note that the
          tests take a very long time to run in this mode

2004-11-22 13:50  asuraparaju

        * util/: Makefile.am, conversion/Makefile.am: Include Id tag to
          track revisions.

2004-11-22 13:48  asuraparaju

        * doc/: Makefile.am, algorithm/Makefile.am, api/Makefile.am,
          programmers/Makefile.am: Included the Id tag to track revisions.

2004-11-22 13:46  asuraparaju

        * Makefile.am: Added support for 'valgrind-check' argument to make.

2004-11-22 13:42  asuraparaju

        * util/instrumentation/libdirac_instrument/: draw_overlay.cpp,
          draw_overlay.h, gm_inliers.cpp, gm_inliers.h, motion_arrows.cpp,
          motion_arrows.h, motion_colour.cpp, motion_colour.h,
          motion_colour_arrows.cpp, motion_colour_arrows.h, overlay.cpp,
          overlay.h, overlay_symbols.cpp, overlay_symbols.h, pred_mode.cpp,
          pred_mode.h, sad.cpp, sad.h, split_mode.cpp, split_mode.h: Fixed
          "invalid read" and "memory leak" errors reported by valgrind.
          Added namespace support. All instrumentation library
          functionality is in the namespace dirac_instr.

2004-11-22 13:39  asuraparaju

        * util/instrumentation/: process_sequence.cpp, process_sequence.h:
          Replace all refrences to PicInput and PicOutput classes with
          FileStreamInput and FileStreamOutput classes. m_zl (number of
          frames in sequence) is no longer part of the Sequence header.
          Changed function ProcessSequence::DoSequence to work around this.

2004-11-22 13:39  asuraparaju

        * util/instrumentation/instrmain.cpp: Replaces all references to
          PicInput and PicOutput classes with FileStreamInput and
          FileStreamOutput classes.

2004-11-22 13:37  asuraparaju

        * picheader/: Makefile.am, headmain.cpp: Number of frames in a
          sequence is no longer required in encode/decode operations.

2004-11-22 13:36  asuraparaju

        * libdirac_encoder/: seq_compress.cpp, seq_compress.h: Restructured
          SequenceCompressor class to separate frame loading and frame
          compression functionality into two different functions. This was
          necessary to implement the "C" interface to the encoder. Added
          new access functions, GetFrameEncoded and GetMEData(), to return
          the latest frame encoded and the motion estimation data
          associated with it. Added function EndSequence that writes end of
          sequence information the the output bitstream.  Added namespace
          support. All core Dirac functionality is now in namespace dirac.

2004-11-22 13:35  asuraparaju

        * libdirac_encoder/: frame_compress.cpp, frame_compress.h: Motion
          Estimation data is no longer written to a file. Instead, added
          new functions, IsMEDataAvail and GetMEdata,  to enable class user
          to access the Motion Estimation data.  Added namespace support.
          All core Dirac functionality is now in namespace dirac.

2004-11-22 13:34  asuraparaju

        * libdirac_encoder/comp_compress.cpp: Allowed a full range of
          quantisers, so that lossless coding is possible.  Replaced tabs
          with spaces.  Fixed MSVC++ compiler warnings.  Added namespace
          support.

2004-11-22 13:33  asuraparaju

        * libdirac_decoder/seq_decompress.cpp: Removed all depedency on the
          m_zl (number of frames in sequence) parameter in the sequence
          parameters which no longer exists.

2004-11-22 13:32  asuraparaju

        * decoder/decmain.cpp, libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/dirac_parser.h: Moved structures common to the
          encoder and decoder "C" interfaces into
          librac_common/dirac_types.h

2004-11-22 13:30  asuraparaju

        * libdirac_common/bit_manager.h: Updated the bit stream version
          since the the bitstream in release 0.5.0 differs from the
          bitstream in version 0.4.x.  Added namespace support. All core
          Dirac functionality is now in namespace dirac.

2004-11-22 13:29  asuraparaju

        * libdirac_common/: frame_buffer.cpp, frame_buffer.h: FrameBuffer
          functions now support all io classes derived from the abstract
          pic io classes StreamPicInput and StreamPicOutput Added namespace
          support. All core Dirac functionality is now in namespace dirac.

2004-11-22 13:29  asuraparaju

        * libdirac_common/: pic_io.cpp, pic_io.h: Restructured the PicIO
          classes so that in addition to file io streams, memory based io
          streams are also supported. Replaced PicInput and PicOutput
          classes with FileStreamInput and FileStreamOutput classes.

2004-11-22 13:28  asuraparaju

        * libdirac_common/dirac_assertions.cpp: Modified dirac_assert
          function always dump core irrespetive of whether the code was
          built in debug mode or release mode.  Added namespace support.
          All core Dirac functionality is now in namespace dirac.

2004-11-22 13:26  asuraparaju

        * unit_tests/: core_suite.h, cppunit_testsuite.cpp, utmain.cpp:
          Added licence declaration.

2004-11-22 13:25  asuraparaju

        * unit_tests/Makefile.am: Added wavelet transform test.

2004-11-22 13:24  asuraparaju

        * unit_tests/: arrays_test.cpp, arrays_test.h: Added unit test for
          TwoDArray value constructor.

2004-11-22 13:22  asuraparaju

        * README.developers: Added text on bootstrapping to create the
          configure script from the CVS repository. Also added text on how
          to profile the code.

2004-11-22 13:21  asuraparaju

        * libdirac_common/frame.cpp: Modified clipping so that overshoots
          are allowed wrt Rec 601 ranges. This is because the original data
          may have overshoots too.  Added namespace support. All core Dirac
          functionality is now in namespace dirac.

2004-11-22 13:20  asuraparaju

        * libdirac_motionest/: me_mode_decn.cpp, me_utils.cpp: Minor code
          tidy. Assignment = changed to copy construction for a number of
          declarations.  Added namespace support. All core Dirac
          functionality is now in namespace dirac.

2004-11-22 13:19  asuraparaju

        * libdirac_decoder/frame_decompress.cpp: Changes related to
          MotionCompensator constructor changes.  Added namespace support.
          All core Dirac functionality is now in namespace dirac.

2004-11-22 13:16  asuraparaju

        * libdirac_common/: arith_codec.h, arrays.h, bit_manager.cpp,
          mot_comp.cpp, mot_comp.h, motion.cpp, motion.h, wavelet_utils.h:
          Added constant-value constructor to arrays.h.  Removed motion
          compensation-specific functions from motion.h.  Refactored
          mot_comp.h for speed and to remove rounding errors, incorporating
          patch supplied by Stephen Bearcroft. Also changed function for
          computing overlapped block weights to remove potential rounding
          errors here.  Changed constructor to configure motion
          compensation for addition or subtraction.  Added namespace
          support. All core Dirac functionality is now in namespace dirac.

2004-11-22 13:13  asuraparaju

        * encoder/encmain.cpp: Modified the encoder to use the new Encoder
          Public API.

2004-11-22 13:11  asuraparaju

        * libdirac_common/: common.cpp, common.h: Enforced a maximum of
          100% overlap in setting block sizes.  Removed m_zl (number of
          frames) parameter from SeqParams class. The user need no longer
          to specify the number of frames in the input sequence.  Added new
          functions ChromaWidth and ChromaHeight to SeqParams class which
          return the width and height of the chroma component.  Changed
          m_output_path in EncParams to var type std::string to prevent
          buffer overflow errors.  Added namespace support. All core Dirac
          functionality is now in namespace dirac.

2004-11-22 13:09  asuraparaju

        * libdirac_common/: upconvert.cpp, upconvert.h: Fixed bug in
          interpolating at the edge of the picture. Also clarified variable
          names. Added namespace support. All core Dirac functionality is
          now in namespace dirac.

2004-11-22 13:07  asuraparaju

        * unit_tests/: wavelet_utils_test.cpp, wavelet_utils_test.h: Unit
          test to test the Wavelet utilities

2004-11-22 13:06  asuraparaju

        * tests/at_wrap.in: Wrapper script around tests to use valgrind for
          memory checks

2004-11-22 13:05  asuraparaju

        * libdirac_encoder/: dirac_encoder.cpp, dirac_encoder.h: Encoder
          "C" Public API implementation files

2004-11-22 13:04  asuraparaju

        * libdirac_common/dirac_types.h: New header file to hold structures
          common to the Dirac Encoder and Decoder public "C" API

2004-11-04 12:54  asuraparaju

        * encoder/encmain.cpp: Setting original frame dimensions to
          codec_params for global motion

2004-11-04 12:54  asuraparaju

        * libdirac_common/arrays.h: Applied patch 1055707 and extended it
          to use memcpy for assigment = and copy constructor in both One-D
          and Two-D arrays.

2004-11-04 12:53  asuraparaju

        * libdirac_common/common.h: Including original frame dimensions in
          codec_params for use in global motion

2004-11-04 12:53  asuraparaju

        * libdirac_common/: motion.cpp, motion.h: Including arrays to hold
          global motion data in MvData and MEData

2004-11-04 12:52  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils.h: Refactored
          wavelet transform (again). Code now does re-ordering separately
          so that all the wavelet lifting stages can be done with in-place
          calculation.  All loops traverse contiguous data in memory to
          facilitate future vectorisation.

2004-11-04 12:52  asuraparaju

        * libdirac_encoder/comp_compress.cpp: Fixed bug 1055692 which was
          caused by integer overflow when calculating the quality based on
          4th powers of error. The integer overflow resulted in attempting
          to determine the square root of a negative number which caused
          the encoder to go into a permanent loop when using gcc 3.4.2.
          Modified the Mean Square Error calculation to use double instead
          of int type to fix this bug.

2004-11-04 12:52  asuraparaju

        * libdirac_motionest/me_utils.cpp: Applied patch 1055714. Now the
          Difference calculator uses a CalcValueType accumulator rather
          than float.

2004-11-04 12:50  asuraparaju

        * util/instrumentation/: instrmain.cpp,
          libdirac_instrument/Makefile.am,
          libdirac_instrument/gm_inliers.cpp,
          libdirac_instrument/gm_inliers.h,
          libdirac_instrument/overlay.cpp, libdirac_instrument/overlay.h:
          Update instrumentation with changes related to handling global
          motion

2004-10-21 15:27  asuraparaju

        * libdirac_common/motion.cpp: Fix "invalid write error" reported by
          valgrind in function MEData::FindTransitions.  This was causing
          the encoder to seg fault when using video of size 352x576.  (Bug#
          1050757)

2004-10-21 15:26  asuraparaju

        * libdirac_motionest/motion_estimate.cpp: Fix the error reported by
          valgrind in SetChromaDC where an unitialised variable was being
          used to initialise dcarray.

2004-10-20 18:27  asuraparaju

        * libdirac_motionest/block_match.cpp: Code tidy

2004-10-20 18:26  asuraparaju

        * libdirac_encoder/quality_monitor.h: Broke up  extremely long
          function prototype into multiple lines

2004-10-20 18:24  asuraparaju

        * libdirac_encoder/quality_monitor.cpp: Introduced clipping of the
          feedback control signal to reduce overshoots due to inaccuracies
          in the model.

2004-10-20 18:23  asuraparaju

        * libdirac_decoder/: frame_decompress.cpp, frame_decompress.h:
          Fixed memory leak (Bug# 1044503)

2004-10-20 18:21  asuraparaju

        * libdirac_decoder/dirac_parser.cpp: Fixed memory leak (Bug#
          1044501)

2004-10-20 18:20  asuraparaju

        * libdirac_common/mot_comp.cpp: Fixed memory leak (Bug #1044499)

2004-10-20 18:18  asuraparaju

        * libdirac_common/band_codec.cpp: Added max value for the number of
          symbols to be accumulated between resets. Prevents overflow in
          the arithmetic coder.

2004-10-20 18:17  asuraparaju

        * encoder/encmain.cpp: Changed GOP structure for 720p to be 24,3
          not 24,6

2004-10-20 18:16  asuraparaju

        * decoder/decmain.cpp: Fixed memory leak caused by not freeing up
          frame buffer that was dynamically allocated

2004-09-21 14:02  asuraparaju

        * ChangeLog: Included details of checkins for 0.4.3 release

2004-09-21 13:58  asuraparaju

        * NEWS: Included 0.4.3 release notes

2004-09-21 13:45  asuraparaju

        * configure.ac: Updated release id to 0.4.3

2004-09-21 11:56  asuraparaju

        * encoder/encmain.cpp: Removed ambiguity between -HD720 and HD720p
          options.

2004-09-21 11:16  asuraparaju

        * util/instrumentation/libdirac_instrument/overlay.cpp: Fixed bug
          in setting x chroma factor for 4:1:1 input which caused the
          diagnostics tool to crash.

2004-09-21 11:15  asuraparaju

        * libdirac_motionest/: downconvert.cpp, downconvert.h: Fixed bug
          where downconverting a picture with odd valued dimensions.

2004-09-21 11:14  asuraparaju

        * libdirac_encoder/: quality_monitor.cpp, quality_monitor.h: Tidied
          and changed terminology to refer to quality rather than PSNR.

2004-09-21 11:14  asuraparaju

        * libdirac_common/: common.cpp, common.h: Fixed bug with block
          sizes for 411 coding.

2004-09-21 11:14  asuraparaju

        * doc/algorithm/: algorithm.htm, const_qual.htm, subband_rdo.htm:
          Added detail of the constant quality coding revisions. Updated
          version number.

2004-09-17 16:46  asuraparaju

        * libdirac_motionest/: block_match.cpp, me_mode_decn.cpp,
          me_subpel.cpp, me_subpel.h, motion_estimate.cpp: Changed
          structure to use a map for the different lambdas, which is
          encpasulated in the MEData structure. Limited size of motion
          vector costs to allow us to cope with motion transitions better.

2004-09-17 16:44  asuraparaju

        * libdirac_encoder/: comp_compress.cpp, frame_compress.cpp,
          quality_monitor.cpp, quality_monitor.h: Changed quality metric
          from PSNR to one based on 4th powers of errors, to give bigger
          weighting to large errors.

2004-09-17 16:43  asuraparaju

        * libdirac_common/: common.h, frame.cpp, frame_buffer.cpp,
          mot_comp.cpp, mot_comp.h, motion.cpp, motion.h,
          wavelet_utils.cpp: Fixed bug with scaling motion vectors for
          non-444 formats. Rationalised frame buffer functions. Added
          comments to common.h. General tidying up of code.

2004-09-10 14:13  asuraparaju

        * ChangeLog: Included details of recent checkins

2004-09-10 14:05  asuraparaju

        * NEWS: Included 0.4.2 release notes

2004-09-10 14:04  asuraparaju

        * configure.ac: Updated release id to 0.4.2

2004-09-10 12:34  asuraparaju

        * libdirac_common/pic_io.h, encoder/encmain.cpp: Ensure that the
          number of frame in the output pic header is set to the number of
          frames written to the file.

2004-09-10 11:06  asuraparaju

        * Makefile.am: Only Makefile and README from win directory are now
          included in distribution

2004-09-09 15:48  asuraparaju

        * util/instrumentation/: process_sequence.cpp,
          libdirac_instrument/draw_overlay.cpp,
          libdirac_instrument/draw_overlay.h,
          libdirac_instrument/overlay.cpp, libdirac_instrument/overlay.h:
          Fixed bug with handling reference 2 when only one reference frame
          is available

2004-09-09 15:43  asuraparaju

        * util/instrumentation/libdirac_instrument/split_mode.cpp: Fix
          writng beyond end of array bug which caused the diagnostics tool
          to crash when using split_mode.

2004-09-09 15:42  asuraparaju

        * util/instrumentation/README: Correct pathname to diagnostic tool

2004-09-09 15:41  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fixed bug with bit-rate being
          miscalculated when only a section of the sequence is encoded.

2004-09-09 15:40  asuraparaju

        * libdirac_encoder/frame_compress.cpp: Restored mod which outputs
          array dimensions for instrumentation output.

2004-09-09 15:39  asuraparaju

        * libdirac_common/wavelet_utils.cpp: Fixed bug with setting DC band
          perceptual weight.

2004-09-09 15:39  asuraparaju

        * encoder/encmain.cpp: Fixed bug with setting length of output
          sequence when coding a section of picture.

2004-09-09 15:38  asuraparaju

        * decoder/decmain.cpp: Print average frame decode time to stdout
          instead of stderr so that stderr can be monitored for errors in
          tests

2004-09-09 15:37  asuraparaju

        * configure.ac: Add diagnostic tool to test path

2004-09-09 15:36  asuraparaju

        * README.release: Add testing diagnostic tool to release checklist

2004-08-26 12:08  asuraparaju

        * ChangeLog: Updated with details of recent checkins

2004-08-26 12:05  asuraparaju

        * NEWS: Included 0.4.1 release notes

2004-08-26 12:02  asuraparaju

        * configure.ac: Updated release id to 0.4.1

2004-08-25 18:09  asuraparaju

        * ChangeLog: Updated this doc with details of recent checkins

2004-08-25 17:58  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          picheader/Makefile.am, unit_tests/Makefile.am,
          util/conversion/Makefile.am, util/conversion/common/Makefile.am,
          util/instrumentation/Makefile.am,
          util/instrumentation/libdirac_instrument/Makefile.am: Build under
          windows using gnu autotools, MSys as a shell and the no-cost MS
          VC++ 2003 compiler  now supported.

2004-08-25 17:56  asuraparaju

        * configure.ac: Fixed bug in configure where configure passed but
          make unit_tests failed when a version of cppunit older that
          1.10.2 is installed.      Build under windows using gnu
          autotools, MSys as a shell and MS C++ compiler 7.1 (free version)
          now supported.

2004-08-25 17:55  asuraparaju

        * tests/Makefile.am: Set up CLEANFILES to the files created by
          encoder and decoder so that they are deleted during 'make clean'
          instead of manually deleting them.

2004-08-25 17:54  asuraparaju

        * README.release: Added compile and test under windows using MSYS
          and cl to checklist Included updating project page on
          www.freshmeat.net in check list.  Corrected line numbering and
          added note to send email to dirac-announce mailing list.

2004-08-25 17:52  asuraparaju

        * README: Added a section on compiling using MSYS shell and VC++
          2003 compiler under windows. Replaced all tabas with spaces.
          Reformatted text to not exceed 80 chars per line.

2004-08-25 17:51  asuraparaju

        * doc/dirac_bitstream.txt: Fixed error concerning prefix codes.

2004-08-25 17:51  asuraparaju

        * encoder/encmain.cpp: Removed duplicate text output. Fixed char
          buffer overflow bug which causes encoder to fail when file name
          paths exceed 80 chars.

2004-08-25 17:50  asuraparaju

        * libdirac_common/common.h: Fixed bug where SeqParams.Interlace()
          was returning the chroma format instead of interlace.

2004-08-25 17:48  asuraparaju

        * libdirac_common/pic_io.cpp: Removed text output if we've run out
          of input.

2004-08-25 17:47  asuraparaju

        * libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/motion.h, libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp: Modified motion estimation so
          that it's done on the uncompressed data.  Changed the ME
          utilities so that they compute SAD only. Modified mode decisions
          to restore weights applied to different levels of decomposition.
          Changed QualityMonitor class so that the internal model of rate
          versus distortion is effectively reset if we have to recode a
          frame. Fixed bug with measurement of PSNR.

2004-08-20 16:05  asuraparaju

        * tests/colourbars.at: Fix paths for out-of-tree builds

2004-08-19 15:27  asuraparaju

        * doc/api/dirac_api.doxygen: Include utilities in documentation

2004-08-19 14:55  asuraparaju

        * configure.ac: Update release id to 0.4.0

2004-08-19 13:32  asuraparaju

        * ChangeLog: Updated with details of recent checkins

2004-08-19 13:23  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          picheader/Makefile.am, tests/Makefile.am, unit_tests/Makefile.am,
          util/conversion/Makefile.am, util/conversion/common/Makefile.am,
          util/instrumentation/Makefile.am,
          util/instrumentation/libdirac_instrument/Makefile.am: Fixed build
          errors when compiling out of source tree. Out-of-source-tree
          builds are now successful.

2004-08-19 13:21  asuraparaju

        * NEWS: Included Alpha 0.4.0 release notes

2004-08-19 13:20  asuraparaju

        * decoder/decmain.cpp: Handling STATE_INVALID returned by parser.

2004-08-19 13:20  asuraparaju

        * encoder/encmain.cpp: Fixed bug with setting block sizes.

2004-08-19 13:19  asuraparaju

        * picheader/headmain.cpp:  Replace tabs with spaces. Fixed a
          character array overrun error.

2004-08-19 13:17  asuraparaju

        * util/instrumentation/README: Updated this document

2004-08-19 13:16  asuraparaju

        * win/Makefile: Updated Makefile to build correctly

2004-08-19 13:14  asuraparaju

        * TODO: Update todo list

2004-08-19 13:13  asuraparaju

        * README.release: Include tagging of files with release id in the
          checklist

2004-08-19 13:13  asuraparaju

        * README: Updated for 0.4.0 release

2004-08-19 13:12  asuraparaju

        * AUTHORS: Updated list of contributors

2004-08-19 13:11  asuraparaju

        * dirac.pc.in: Setting include and libs vars to correct values so
          that pkg-config shows the correct dependencies for Dirac.

2004-08-19 13:10  asuraparaju

        * configure.ac: Included additional condtional vars to check if
          documentation can be built successfully. Included
          -Wno-long-double flag on platforms where it is supported to
          prevent compile time warnings.

2004-08-19 13:08  asuraparaju

        * doc/: Makefile.am, api/Makefile.am, api/dirac_api.doxygen,
          api/dirac_api_foot.html, programmers/Makefile.am: Included
          additional condtional vars to check if documentation can be built
          successfully. Included dirac_bitstream.txt in distribution.

2004-08-19 13:06  asuraparaju

        * doc/algorithm/: algorithm.htm, rdo.htm, toc.htm,
          transform_coding.htm: Added links to constant quality encoding
          pages.

2004-08-19 13:04  asuraparaju

        * doc/algorithm/const_qual.htm: Added documentation on constant
          quality encoding.

2004-08-19 13:03  asuraparaju

        * doc/faq.htm: Added details on patent position. Fixed broken
          links. Minor text changes

2004-08-19 13:02  asuraparaju

        * doc/dirac_bitstream.txt: Initial bitstream syntax document for
          Dirac bitstream v0.1

2004-08-19 12:55  asuraparaju

        * util/instrumentation/: instrmain.cpp, process_sequence.cpp,
          process_sequence.h, libdirac_instrument/draw_overlay.cpp,
          libdirac_instrument/draw_overlay.h,
          libdirac_instrument/motion_arrows.cpp,
          libdirac_instrument/motion_arrows.h,
          libdirac_instrument/motion_colour.cpp,
          libdirac_instrument/motion_colour_arrows.cpp,
          libdirac_instrument/overlay.cpp,
          libdirac_instrument/pred_mode.cpp, libdirac_instrument/sad.cpp,
          libdirac_instrument/split_mode.cpp: Output all MEData members and
          cope with monochrome sequences Fixed block dimensions bug.  Fixed
          padded pictures bug.

2004-08-19 12:50  asuraparaju

        * libdirac_common/bit_manager.h, libdirac_common/common.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_cppparser.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/dirac_parser.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/seq_decompress.cpp: Bitstream v0.1 related
          changes - Handling new start codes and bitstream version

2004-08-19 12:46  asuraparaju

        * libdirac_motionest/: me_mode_decn.cpp, me_utils.cpp,
          motion_estimate.cpp, pixel_match.cpp: Tiffled motion estimation
          parameters to improve performance.

2004-08-19 12:45  asuraparaju

        * libdirac_common/arith_codec.h: Minor mods to fix compile time
          errors

2004-08-19 12:45  asuraparaju

        * libdirac_common/dirac_assertions.h: New debug test macros TEST,
          TESTM, REPORT and REPORTM

2004-08-19 12:44  asuraparaju

        * libdirac_common/: motion.cpp, motion.h: Instrumentation update:
          outputs all MEData members and copes with monochrome sequences

2004-08-19 12:43  asuraparaju

        * libdirac_common/: mot_comp.cpp, pic_io.cpp, wavelet_utils.cpp:
          Cleansed code

2004-08-19 12:40  asuraparaju

        * libdirac_encoder/: frame_compress.cpp, quality_monitor.cpp,
          quality_monitor.h, seq_compress.cpp: Handling new start codes and
          bitstream version.  Fixed bug in quality monitor code where
          padding area was taken into account in calculating PSNR. Removed
          unused code for calculating weighted PSNR.  Removed commented
          output from quality monitor.  Instrumentation update: outputs all
          MEData members and copes with monochrome sequences.

2004-08-11 16:30  asuraparaju

        * ChangeLog: Update this log with details recent checkins

2004-08-11 16:23  asuraparaju

        * tests/Makefile.am: Deleting data files created by encode and
          decode operation durng cleanup.

2004-08-11 15:53  asuraparaju

        * decoder/decmain.cpp: Decoder modified to use the "C" interface.

2004-08-11 15:53  asuraparaju

        * encoder/encmain.cpp: Added support for cut-detection and intra
          frame insertion. Changed output structure to output frame by
          frame, and added recoding to exploit this.  Recoding takes place
          if quality is not within a range of the target quality.

          Replaced tabs with spaces.

          Updated data file extension

2004-08-11 15:48  asuraparaju

        * libdirac_encoder/: Makefile.am, frame_compress.cpp,
          frame_compress.h, quality_monitor.cpp, quality_monitor.h,
          seq_compress.cpp, seq_compress.h: Fixed the bug where all header
          files were being dumped into the same install directory. Now
          headers are copied into the <installdir>/dirac/<module>
          directory.

          Added support for cut-detection and intra frame insertion.
          Changed output structure to output frame by frame, and added
          recoding to exploit this.  Recoding takes place if quality is not
          within a range of the target quality.

          Writing frame start, sequence start and sequence end codes to
          bitstream.

          Modifications to build under WIN32

2004-08-11 15:44  asuraparaju

        * libdirac_decoder/: Makefile.am, frame_decompress.cpp,
          frame_decompress.h, seq_decompress.cpp, seq_decompress.h:
          Handling new "C" interface files.  Handling bitstream changes in
          frame and sequence decompress routines.  Fixed the bug where all
          header files were being dumped into the same install directory.
          Now headers are copied into the
          <installdir>/dirac/libdirac_decoder

2004-08-11 15:40  asuraparaju

        * libdirac_common/: Makefile.am, arith_codec.h, arrays.h,
          band_codec.cpp, band_codec.h, bit_manager.cpp, bit_manager.h,
          common.cpp, common.h, frame.cpp, frame.h, frame_buffer.cpp,
          mot_comp.cpp, motion.cpp, mv_codec.cpp, mv_codec.h, pic_io.cpp,
          pic_io.h: Renamed BitOutputManager to UnitOutputManager in
          bit_manager.* Modified bit_manager.* to handle modifications to
          bitstream.  Moved enumerated types common to the encoder, decoder
          and codec interfaces from common.h into common_types.h to avoid
          duplication of declarations.

          Added support for cut-detection and intra frame insertion.
          Changed output structure to output frame by frame, and added
          recoding to exploit this.  Recoding takes place if quality is not
          within a range of the target quality.

          Modifications to build under WIN32 Fixed icc compiler warning 522
          Fixed VC++ 2003 compiler warnings

          Fixed the bug where all header files were being dumped into the
          same install directory. Now headers are copied into the <install
          dir>/dirac/libdirac_common directory.

2004-08-11 15:30  asuraparaju

        * libdirac_motionest/: Makefile.am, me_mode_decn.cpp,
          me_subpel.cpp, motion_estimate.cpp, motion_estimate.h: Minor mods
          to improve motion estimation: no lambda-smoothing on
          pixel-accurate ME.  Fixed the bug where all header files were
          being dumped into the same install directory. Now headers are
          copied into the <install dir>/dirac/libdirac_motionest
          directory..

2004-08-11 15:27  asuraparaju

        * util/instrumentation/: Makefile.am, instrmain.cpp,
          process_sequence.cpp, process_sequence.h,
          libdirac_instrument/overlay.h: Restructured the code. Corrected
          header file path in instrmain.cpp.  Added a ProcessSequence
          class. File extension of motion vector instrumentation file
          changed from _mvdata to .imt

2004-08-11 15:24  asuraparaju

        * tests/: Makefile.am, colourbars.at: Deleting instrumentation
          files during clean up.  Ignoring stdout and stderr when running
          decoder.

2004-08-11 15:23  asuraparaju

        * win/Makefile: Fixed VC++ 2003 compile and link errors

2004-08-11 15:21  asuraparaju

        * libdirac_common/: dirac_assertions.cpp, dirac_assertions.h: Added
          functions for runtime testing in debug mode. Two new macros are
          defined.

          ASSERT( exp ) - if exp resolves to false, the program prints the
          line number and file where the assertion failure occured. In
          debug mode the program exits immediately dumping core.

          ASSERT( exp, mesg ) - if exp resolves to false, the program
          prints the line number, file name where the assertion failure
          occured and mesg. In debug mode the program exits immediately

2004-08-11 15:20  asuraparaju

        * libdirac_common/common_types.h: Moved enumerated types common to
          the encoder, decoder and codec interfaces from common.h into this
          file to avoid duplication of declarations.

2004-08-11 15:16  asuraparaju

        * libdirac_decoder/: decoder_types.h, dirac_cppparser.cpp,
          dirac_cppparser.h, dirac_parser.cpp, dirac_parser.h: These new
          files define the  "C" interface to the decoder. The bitstream has
          been modified to be able to parse it for decoding.

          BitStream Changes:

          The new dirac bit stream is as follows <sequence-start-code>
          <sequence header> <frame-start-code> <frame 1 data> .  .  .
          <frame-start-code> <frame n data> <sequence-end-code>

          Sequence start code: Each sequence begins with a 5 bytes start
          code 0x01 0x02 0x03 0x04 0xB3

          Frame start code: Each frame begins with a 5 bytes frame start
          code  0x01 0x02 0x03 0x04 0xB4

          Sequence End code: Each sequence ends with a 5 bytes sequence end
          code 0x01 0x02 0x03 0x04 0xB7

          Not a start code flag: If the arithmetic codec ouputs the start
          code prefix 0x01 0x02 0x03 0x04, 0xFF is inserted into the
          bitstream to flag that this is the output of the Arithmetic codec
          and not a start code.

2004-08-11 14:27  asuraparaju

        * configure.ac: Added a new option --enable-profile to include the
          profiling option -pg to them compile line. Setting up CXXFLAGS
          correctly for Intel compiler when the --enable-debug option is
          used.

2004-08-11 14:26  asuraparaju

        * README.release: A checklist for producing a new release

2004-08-03 10:32  asuraparaju

        * ChangeLog: Updated this log with details of recent checkins

2004-08-03 10:22  asuraparaju

        * Makefile.am, configure.ac, dirac.pc.in, decoder/decmain.cpp,
          encoder/encmain.cpp, libdirac_common/Makefile.am,
          libdirac_common/arrays.h, libdirac_common/bit_manager.cpp,
          libdirac_common/bit_manager.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/Makefile.am, libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h, libdirac_motionest/Makefile.am,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h: libdirac_common,
          libdirac_encoder, encoder:     Incorporated diagnostic tool

          libdirac_common, libdirac_encoder, libdirac_motionest:     Added
          lifting classes for wavelet transform. Refactored motion
          estimation to make logic clearer, and added separate
          pixel-accurate matching classes.  Put in a longer temporal filter
              in QualityMonitor class to reduce oscillation and changed
          motion     estimation Lagrangian parameter to improve
          performance.  TO DO:     tune ME parameter for each picture
          size/block size combination.

          libdirac_common:     Corrected bug with lifting functions not
          returning a value.      Modified MvData class to make member
          variables private.

          libdirac_encoder:     Modified ME lambda value to improve
          performance.

          libdirac_decode, libdirac_encoder, libdirac_motionest,
          libdirac_common:     Modified MvData class to make member
          variables private. Created     MEData class as a subclass of
          MvData for use in motion estimation.

          libdirac_commonm libdirac_encoder:     Refactored output classes
          to create classes for unit, frame and     sequence output, where
          a unit is a subband or MV data, and consists of     a header and
          subsequent data. Output can only be effected at the     sequence
          level and occurs only after a whole frame of data has been
          accumulated.  This will allow for frames to be re-coded before
          being     output if their quality is not satisfactory.

2004-08-03 10:07  asuraparaju

        * util/: Makefile.am, instrumentation/Makefile.am,
          instrumentation/README, instrumentation/instrmain.cpp,
          instrumentation/libdirac_instrument/Makefile.am,
          instrumentation/libdirac_instrument/draw_overlay.cpp,
          instrumentation/libdirac_instrument/draw_overlay.h,
          instrumentation/libdirac_instrument/motion_arrows.cpp,
          instrumentation/libdirac_instrument/motion_arrows.h,
          instrumentation/libdirac_instrument/motion_colour.cpp,
          instrumentation/libdirac_instrument/motion_colour.h,
          instrumentation/libdirac_instrument/motion_colour_arrows.cpp,
          instrumentation/libdirac_instrument/motion_colour_arrows.h,
          instrumentation/libdirac_instrument/overlay.cpp,
          instrumentation/libdirac_instrument/overlay.h,
          instrumentation/libdirac_instrument/overlay_symbols.cpp,
          instrumentation/libdirac_instrument/overlay_symbols.h,
          instrumentation/libdirac_instrument/pred_mode.cpp,
          instrumentation/libdirac_instrument/pred_mode.h,
          instrumentation/libdirac_instrument/sad.cpp,
          instrumentation/libdirac_instrument/sad.h,
          instrumentation/libdirac_instrument/split_mode.cpp,
          instrumentation/libdirac_instrument/split_mode.h: Adding
          instrumentation tool

2004-07-16 17:05  asuraparaju

        * ChangeLog: Updated thislog with details of recent checkins

2004-07-16 16:29  asuraparaju

        * libdirac_encoder/quality_monitor.cpp: Fixed bug with model
          updating - limits of slope of linear model were inaccurate. Fixed
          bug with numerical stability of lambda re-calculation.
          Performance with cuts or shot-changes is still poor, however.

2004-07-16 16:23  asuraparaju

        * DCO.developers, README.developers: Added contents section. Added
          text about licensing and contribution.  Modified licensing
          requirements so that contributors contribute under Mozilla too.
          Added Developers Certificate of Origin, which developers are to
          sign before their work is included.

2004-07-12 12:23  asuraparaju

        * ChangeLog: Updated this log with details of most recent checkins

2004-07-12 11:59  asuraparaju

        * libdirac_common/arrays.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h, libdirac_common/bit_manager.cpp,
          libdirac_common/bit_manager.h, libdirac_common/cmd_line.cpp,
          libdirac_common/cmd_line.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/frame.cpp,
          libdirac_common/frame.h, libdirac_common/frame_buffer.cpp,
          libdirac_common/frame_buffer.h, libdirac_common/golomb.cpp,
          libdirac_common/golomb.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.cpp,
          libdirac_common/upconvert.cpp, libdirac_common/upconvert.h,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h: Changed order of
          initialisation parameters for TwoDArray template class and
          subclass PicArray.  Tidied TwoDArray and OneDArray classes.
          Removed all use of allocators. Replaced tabs with spaces in
          libdirac_common. Fixed minor bug in quality_monitor PSNR
          measurement.  Made other typographical changes.

2004-07-12 11:53  asuraparaju

        * Makefile.am, configure.ac, tests/Makefile.am, tests/testsuite.at,
          tests/unittests.at, unit_tests/Makefile.am,
          unit_tests/arrays_test.cpp, unit_tests/arrays_test.h,
          unit_tests/core_suite.h, unit_tests/cppunit_testsuite.cpp,
          unit_tests/utmain.cpp: Added a unit test framework based on
          Cppunit. The unit tests will reside in the directory unit_tests.
          'make check' command will now run the unit tests as well.
          Currently unit test exists only for the TwoDArrays class. More
          tests will be added in future.

2004-07-06 12:51  asuraparaju

        * ChangeLog: Update this log with details of mostrecent checkins

2004-07-06 12:26  asuraparaju

        * Makefile.am, README, encoder/encmain.cpp,
          libdirac_common/arith_codec.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/frame.cpp,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/mot_comp.cpp, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/pic_io.cpp,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/Makefile.am, libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_subpel.cpp,
          libdirac_motionest/me_utils.cpp,
          libdirac_motionest/motion_estimate.cpp, tests/colourbars.at:
          README: Removed discussion of Iqf, L1qf and L2qf. Added text
             explaining constant- quality encoding using -qf.

          Makefile.am: Changed order of make, so that utilities can use the
                  common (and other) libraries.

          libdirac_common:     Changed EncoderParams to include a quality
            parameter for constant-quality encoding. Changed perceptual
          weighting to use an extension of CCIR 959 weights, with extra
          weight for DC band, and lower weights for chroma bands.

              Modified enumerated type CompSort to avoid name clashes by
          using
              longer names. Refactored OLBParams class to have private
          member variables
              and access functions.

          libdirac_encoder:     Added QualityMonitor class to do
          constant-quality     encoding. Class looks at difference between
          locally decoded and     original frames and adjusts Lagrangian
          parameters appropriately.      Simplified interface for encoding
          results, where a single quality      parameter is specified.

          libdirac_decoder     FrameDecompressor::Decompress now returns
          true upon success and false     upon failure.

          encoder/encmain.cpp:     Simplified interface for encoding
          results, where a single quality     parameter is specified.

2004-07-02 14:46  asuraparaju

        * ChangeLog: Updated this log with details about recent checkins

2004-06-30 17:53  asuraparaju

        * README.developers: Removed dollar signs around CVS tags which
          cause them to be expanded

2004-06-30 17:44  asuraparaju

        * AUTHORS, README, README.developers, configure.ac,
          decoder/decmain.cpp, encoder/encmain.cpp,
          libdirac_common/Makefile.am, libdirac_common/arith_codec.h,
          libdirac_common/arrays.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h, libdirac_common/bit_manager.cpp,
          libdirac_common/bit_manager.h, libdirac_common/cmd_line.cpp,
          libdirac_common/cmd_line.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/context.h,
          libdirac_common/frame.cpp, libdirac_common/frame.h,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/golomb.cpp, libdirac_common/golomb.h,
          libdirac_common/mot_comp.cpp, libdirac_common/mot_comp.h,
          libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_common/pic_io.cpp, libdirac_common/pic_io.h,
          libdirac_common/upconvert.cpp, libdirac_common/upconvert.h,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h, picheader/headmain.cpp,
          util/conversion/BMPtoRGB.cpp, util/conversion/RGBtoBMP.cpp,
          util/conversion/RGBtoUYVY.cpp, util/conversion/RGBtoYUV411.cpp,
          util/conversion/RGBtoYUV420.cpp, util/conversion/RGBtoYUV422.cpp,
          util/conversion/RGBtoYUV444.cpp, util/conversion/UYVYtoRGB.cpp,
          util/conversion/YUV411toRGB.cpp, util/conversion/YUV420toRGB.cpp,
          util/conversion/YUV422toRGB.cpp, util/conversion/YUV444toRGB.cpp,
          util/conversion/common/bitmap.cpp,
          util/conversion/common/bitmap.h,
          util/conversion/common/setstdiomode.cpp,
          util/conversion/common/setstdiomode.h: -  Included a coding style
          guidelines sub-section (Coding Style) in    README.developers
          under the section 'Software Practices'. This    sub-section
          describes the coding guidelines for developers and is to be used
            as a reference by developers while writing code and while
          peer-reviewing    code.

          -  Removed the following CVS tags from all files    $Author$
          $Log$
          Revision 1.28  2008-06-04 05:39:17  asuraparaju
          *** empty log message ***

          Revision 1.27  2008/05/30 06:33:56  asuraparaju
          *** empty log message ***
        
          Revision 1.26  2008/01/26 12:11:44  asuraparaju
          *** empty log message ***
        
          Revision 1.25  2008/01/23 01:17:25  asuraparaju
          *** empty log message ***
        
          Revision 1.24  2007/10/01 10:57:15  asuraparaju
          *** empty log message ***
        
          Revision 1.23  2007/05/09 14:06:51  asuraparaju
          *** empty log message ***
            $Revision$

          -  Included the following CVS tags in all source and header files
             $Id$    $Name$

          -  Included a new configuration option, --enable-debug, in
          configure.ac. This    option turns on the flags '-Wall -pedantic
          -Werror' to trap warnings.

          -  Modified parameter classes in common.{h,cpp} to make member
          variables    private and accessible through class methods. Traced
          through codec.

          -  Deleted context.h. The classes that were originally in this
          file have been    integrated as nested classes into ArithCodec
          class in arith_codec.h

          -  Fixed bug on QCIF coding. The number of downconversions during
             hierarchical motion estimation is now limited based on the
          size of the    picture

          -  Changed decoder and encoder params to be references throughout
          frame and    component (de)compression rather than being copied.

          -  Code cleansed to follow coding standards specified in
          README.developers.     - Changed names of member variables to use
          m_ convention     - Used spaces to improve readability of code
           - Accessing class member variables through accessor/mutator
          function rather       than directly     - Non-trivial member
          functions moved from headers to .cpp files

             Changes mainly in the following directories:
             libdirac_common
             libdirac_decoder
             libdirac_encoder

          -  Fixed g++ compiler warnings

2004-06-22 11:10  asuraparaju

        * libdirac_common/wavelet_utils.h: Modified doxygen comments to
          match the declaration of member function SetBandWeights in class
          WaveletTransform.

2004-06-22 11:08  asuraparaju

        * encoder/encmain.cpp: Fixed compilation errors caused by trying to
          access non-existent cformat data member in class EncoderParams.

2004-06-18 16:58  tjdwave

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/frame.cpp, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_common/motion.cpp, libdirac_common/motion.h: Removed
          chroma format parameter cformat from CodecParams and derived
          classes to avoid duplication. Made consequential minor mods to
          seq_{de}compress and frame_{de}compress code.  Revised motion
          compensation to use built-in arrays for weighting matrices and to
          enforce their const-ness.  Removed unnecessary memory
          (de)allocations from Frame class copy constructor and assignment
          operator.

2004-06-16 17:06  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          util/conversion/Makefile.am, util/conversion/common/Makefile.am:
          Enable dependency tracking by removing the macro AUTOMAKE_OPTIONS
          = no-dependencies from Makefile.am

2004-06-16 09:25  tjdwave

        * doc/algorithm/: algorithm.htm, toc.htm: Corrected link in TOC.
          Put correct date in main page.

2004-06-08 17:18  timborer

        * NEWS: Updated release notes for version 0.3.1

2004-06-08 17:03  timborer

        * configure.ac, libdirac_common/golomb.cpp,
          libdirac_common/mv_codec.h, libdirac_motionest/block_match.cpp,
          util/conversion/BMPtoRGB.cpp, util/conversion/RGBtoBMP.cpp,
          util/conversion/RGBtoUYVY.cpp, util/conversion/RGBtoYUV411.cpp,
          util/conversion/RGBtoYUV420.cpp, util/conversion/RGBtoYUV422.cpp,
          util/conversion/RGBtoYUV444.cpp, util/conversion/UYVYtoRGB.cpp,
          util/conversion/YUV411toRGB.cpp, util/conversion/YUV420toRGB.cpp,
          util/conversion/YUV422toRGB.cpp, util/conversion/YUV444toRGB.cpp,
          util/conversion/common/bitmap.cpp,
          util/conversion/common/bitmap.h,
          util/conversion/common/setstdiomode.cpp,
          util/conversion/common/setstdiomode.h, win/Makefile: Files
          updated so that code compiles under Windows (previously broken
          under Windows).  Colour matrix coefficients corrected in video
          conversion utilities Video conversion utilites now build with the
          rest of the code.

2004-06-03 14:07  stuart_hc

        * README.developers: Added Profiling & optimisation section.

2004-05-28 16:05  tjdwave

        * NEWS, TODO: Added information about picture format conversion
          utilities. Removed frame padding from the TODO list.

2004-05-28 15:58  tjdwave

        * README: Added text on how to use the conversion utilities to
          provide test material for Dirac.

2004-05-28 15:27  tjdwave

        * util/conversion/: BMPtoRGB.cpp, Makefile.am, RGBtoBMP.cpp,
          RGBtoUYVY.cpp, RGBtoYUV411.cpp, RGBtoYUV420.cpp, RGBtoYUV422.cpp,
          RGBtoYUV444.cpp, UYVYtoRGB.cpp, YUV411toRGB.cpp, YUV420toRGB.cpp,
          YUV422toRGB.cpp, YUV444toRGB.cpp: Initial commit of command-line
          tools for converting between uncompressed picture formats. All
          conversions use uncompressed RGB as an intermediate format.
          There is a known bug with the colour matrixing which applies a
          gain when going from YUV to RGB and back again. This will be
          fixed in a subsequent release.

2004-05-28 15:18  tjdwave

        * util/conversion/common/: bitmap.cpp, bitmap.h, setstdiomode.cpp,
          setstdiomode.h: Initial commit. Common tools for handling BMP
          headers and stdio handling for Windows.

2004-05-28 15:15  tjdwave

        * util/conversion/common/Makefile.am: Initial commit. Builds common
          library for use by all the conversion routines.

2004-05-28 15:14  tjdwave

        * util/conversion/Makefile.am: Initial commit. Builds file
          conversion utilities.

2004-05-28 15:12  tjdwave

        * util/Makefile.am: Added Makefile to build utility subdirectories.

2004-05-28 15:10  tjdwave

        * Makefile.am, configure.ac: Updated to add utilities directory.

2004-05-27 14:58  asuraparaju

        * configure.ac, doc/Makefile.am, doc/algorithm/Makefile.am,
          doc/api/Makefile.am, doc/programmers/Makefile.am: Corrected API
          and programmer doc build and installation.  Added algorithm doc
          install (from CVS only - not distribution).

2004-05-27 13:21  stuart_hc

        * README.developers: Prevent unintended expansion of $Id$ and $Log: ChangeLog,v $
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.27  2008/05/30 06:33:56  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.26  2008/01/26 12:11:44  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.25  2008/01/23 01:17:25  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.24  2007/10/01 10:57:15  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.23  2007/05/09 14:06:51  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
          in description of keywords.

2004-05-27 13:14  stuart_hc

        * README.developers: Added section on the testsuite and on binary
          files.

2004-05-27 09:02  tjdwave

        * doc/programmers/: programmers_guide.dvi, programmers_guide.log:
          Removed LaTeX-generated .dvi and .log files from CVS control.

2004-05-27 09:00  tjdwave

        * doc/: algorithm/algorithm.htm, algorithm/var_size.htm,
          algorithm/wlt_transform.htm, programmers/programmers_guide.dvi,
          programmers/programmers_guide.log: Updated docs to take into
          account that Dirac does edge-padding, not padding with black, in
          order to avoid significant artefacts at low bit-rate.

2004-05-26 17:01  tjdwave

        * configure.ac, doc/Makefile.am, doc/faq.htm,
          doc/algorithm/algorithm.htm, doc/algorithm/block_data.htm,
          doc/algorithm/intra_pred.htm, doc/algorithm/intro.htm,
          doc/algorithm/mb_structs.htm, doc/algorithm/mot_est.htm,
          doc/algorithm/mot_est_and_comp.htm,
          doc/algorithm/mv_coding_arch.htm,
          doc/algorithm/mv_data_coding.htm, doc/algorithm/mv_data_pred.htm,
          doc/algorithm/mv_entropy_code.htm, doc/algorithm/olb_mc.htm,
          doc/algorithm/overall_arch.htm, doc/algorithm/parent_child.htm,
          doc/algorithm/quantisation.htm, doc/algorithm/rdo.htm,
          doc/algorithm/rdo_mot_est.htm, doc/algorithm/subband_rdo.htm,
          doc/algorithm/temporal_prediction_structures.htm,
          doc/algorithm/toc.htm, doc/algorithm/transform_coding.htm,
          doc/algorithm/transform_coding_arch.htm,
          doc/algorithm/var_size.htm, doc/algorithm/wlt_coeff_coding.htm,
          doc/algorithm/wlt_transform.htm, doc/algorithm/figs/DC.jpg,
          doc/algorithm/figs/DCSAD.jpg, doc/algorithm/figs/braces.jpg,
          doc/algorithm/figs/d.jpg, doc/algorithm/figs/eqA.jpg,
          doc/algorithm/figs/eqB.jpg, doc/algorithm/figs/eqC.jpg,
          doc/algorithm/figs/eqD.jpg, doc/algorithm/figs/eqE.jpg,
          doc/algorithm/figs/eqF.jpg, doc/algorithm/figs/eqG.jpg,
          doc/algorithm/figs/eqH.jpg, doc/algorithm/figs/eqI.jpg,
          doc/algorithm/figs/eqJ.jpg, doc/algorithm/figs/fig1.jpg,
          doc/algorithm/figs/fig10.jpg, doc/algorithm/figs/fig12.jpg,
          doc/algorithm/figs/fig13.jpg, doc/algorithm/figs/fig14.jpg,
          doc/algorithm/figs/fig15.jpg, doc/algorithm/figs/fig16.jpg,
          doc/algorithm/figs/fig17.jpg, doc/algorithm/figs/fig18.jpg,
          doc/algorithm/figs/fig19.jpg, doc/algorithm/figs/fig2.jpg,
          doc/algorithm/figs/fig20.jpg, doc/algorithm/figs/fig21.jpg,
          doc/algorithm/figs/fig22.jpg, doc/algorithm/figs/fig23.jpg,
          doc/algorithm/figs/fig24.jpg, doc/algorithm/figs/fig26.jpg,
          doc/algorithm/figs/fig27.jpg, doc/algorithm/figs/fig3.jpg,
          doc/algorithm/figs/fig4.jpg, doc/algorithm/figs/fig5.jpg,
          doc/algorithm/figs/fig6.jpg, doc/algorithm/figs/fig7.bmp,
          doc/algorithm/figs/fig7.jpg, doc/algorithm/figs/fig8.jpg,
          doc/algorithm/figs/fig9.jpg, doc/algorithm/figs/fp.jpg,
          doc/algorithm/figs/m.jpg, doc/algorithm/figs/nhood.jpg,
          doc/algorithm/figs/nhoodresidue.jpg, doc/algorithm/figs/p.jpg,
          doc/algorithm/figs/p2.jpg, doc/algorithm/figs/t.jpg,
          doc/algorithm/figs/two.jpg, doc/algorithm/figs/var.jpg,
          doc/algorithm/figs/vtilda.jpg, doc/algorithm/figs/vw.jpg,
          doc/api/Makefile.am, doc/api/dirac_api.doxygen,
          doc/api/dirac_api.doxygen.in, doc/api/dirac_api_foot.html,
          doc/api/dirac_api_head.html,
          doc/api/libdirac_encoder_api.doxygen,
          doc/api/libdirac_encoder_api_foot.html,
          doc/api/libdirac_encoder_api_head.html,
          doc/programmers/Makefile.am,
          doc/programmers/programmers_guide.aux,
          doc/programmers/programmers_guide.dvi,
          doc/programmers/programmers_guide.log,
          doc/programmers/programmers_guide.tex: Added algorithm
          documentation and FAQ. Changed name of Scott Ladd's programmers
          guide to programmers_guide.tex from dirac_algor.tex to clarify
          purpose. Created individual subdirectories for algorithm, api and
          programmers guide docs. Modified make files and configure.ac
          appropriately.

2004-05-26 16:44  tjdwave

        * doc/: dirac_algor.tex, dirac_api.doxygen, dirac_api.doxygen.in,
          dirac_api_foot.html, dirac_api_head.html,
          libdirac_encoder_api.doxygen, libdirac_encoder_api_foot.html,
          libdirac_encoder_api_head.html: Removed old documentation
          structure. New doc structure to be put in place.

2004-05-26 16:18  tjdwave

        * libdirac_decoder/seq_decompress.cpp: Corrected behaviour at end
          of stream, so that decoder freezes on the last frame.

2004-05-26 15:33  tjdwave

        * libdirac_encoder/comp_compress.cpp,
          libdirac_common/band_codec.cpp,
          libdirac_decoder/comp_decompress.cpp: Updated default DC
          prediction value to take into account the removal of scaling from
          the wavelet transform.

2004-05-26 15:31  tjdwave

        * libdirac_common/wavelet_utils.h: Added doxygen comments to
          describe how perceptual weighting now incorporates scaling
          factors from the scaling.

2004-05-25 16:30  tjdwave

        * libdirac_common/wavelet_utils.cpp: Removed scaling from the
          wavelet transform. Scaling is now incorporated into perceptual
          weighting; the wavelet transform is now exactly invertible.

2004-05-25 10:49  tjdwave

        * libdirac_common/pic_io.cpp: Fixed bug where coder segfaulted on
          reading.

2004-05-25 03:39  chaoticcoyote

        * ChangeLog, libdirac_common/frame.h, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_encoder/seq_compress.h,
          libdirac_motionest/me_utils.cpp: Unnecessary qualification of
          some class members in frame.h and pic_io.h.  ISO C++ forbids
          variable-size automatic arrays; fixed in pic_io.cpp Removed
          spurious semi-colons in me_utils.cpp Fixed out-of-order member
          constructors in seq_compress.h

2004-05-24 17:03  tjdwave

        * libdirac_decoder/: frame_decompress.cpp, frame_decompress.h,
          seq_decompress.cpp: Support for IO error handling. Decoder
          freezes on last frame if out of data.

2004-05-24 16:57  tjdwave

        * picheader/headmain.cpp, encoder/encmain.cpp, decoder/decmain.cpp:
          Changed CLI names and functions to house style.

2004-05-24 16:55  tjdwave

        * libdirac_common/: cmd_line.cpp, cmd_line.h: Modified class name
          to fit house style: ClassName, not class_name.

2004-05-24 16:53  tjdwave

        * libdirac_common/: pic_io.cpp, pic_io.h: Added error handling: IO
          functions now return boolean values.

2004-05-24 16:52  tjdwave

        * tests/colourbars.at: Fixed test so that header file has correct
          zlength=1.

2004-05-24 16:51  tjdwave

        * Makefile.am: Switched order so that docs are builts last.

2004-05-24 13:38  tjdwave

        * libdirac_common/mot_comp.cpp, libdirac_common/mot_comp.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h:
          Replaced spagetti code for linear interpolation in motion
          compensation and motion estimation routines with simple loops.
          Code is much clearer, although possibly slightly slower.

2004-05-21 18:46  asuraparaju

        * Makefile.am, configure.ac, tests/Makefile.am,
          tests/colourbars.at, tests/colourbars_420.yuv,
          tests/testsuite.at: Initial support for autotest testsuite (run
          "make check").

2004-05-21 17:27  stuart_hc

        * README.developers: Initial revision of software practice
          guidelines for CVS developers.

2004-05-21 15:17  tjdwave

        * libdirac_common/mot_comp.cpp: Fixed bug with erroneous linear
          interpolation for sub-pixel values.

2004-05-20 13:44  tjdwave

        * README: Minor edit of example of making a header, to reflect the
          new CLI.

2004-05-20 13:39  tjdwave

        * picheader/headmain.cpp: Fixed help message for CLI.

2004-05-20 13:38  tjdwave

        * decoder/decmain.cpp: Fixed minor bug with -verbose option to make
          it true boolean.

2004-05-20 13:37  tjdwave

        * encoder/encmain.cpp: Corrected help text for CLI.

2004-05-20 11:50  stuart_hc

        * doc/dirac_api.doxygen, doc/dirac_api_foot.html,
          doc/dirac_api_head.html, doc/libdirac_encoder_api_foot.html,
          doc/libdirac_encoder_api_head.html,
          libdirac_common/band_codec.cpp: Corrected CRLF line-endings to LF
          for consistency.

2004-05-20 11:35  stuart_hc

        * NEWS: Added mention of libtool removal, slight rearrangement for
          clarity.  Corrected CRLF line-endings to LF.

2004-05-20 11:31  stuart_hc

        * README: Fixed incorrect interlace argument in DV transcode
          example.  Minor grammatical errors fixed.

2004-05-19 23:08  chaoticcoyote

        * README: Updated for changes in command-line parser

2004-05-19 23:00  chaoticcoyote

        * AUTHORS: Added my middle name to credits Corrected company name

2004-05-19 18:39  chaoticcoyote

        * decoder/decmain.cpp, encoder/encmain.cpp,
          libdirac_common/cmd_line.cpp, libdirac_common/cmd_line.h,
          picheader/headmain.cpp: Modified command line parser to correctly
          handle boolean options

2004-05-19 17:27  stuart_hc

        * README: Added example usage for MPlayer, display (ImageMagick),
          and transcode.  Reformatted all example commands to be indented
          for clarity.

2004-05-19 16:51  tjdwave

        * NEWS: More details for 0.3.0 release

2004-05-19 15:29  tjdwave

        * NEWS: Include release notes for 0.2.0 & 0.3.0

2004-05-19 15:19  tjdwave

        * TODO: Removed mention of frame buffer class, since now complete.

2004-05-19 15:14  tjdwave

        * AUTHORS: Added contributers.

2004-05-19 15:04  tjdwave

        * libdirac_common/pic_io.cpp: Changed YUV output to output lines
          instead of bytes, according to patch provided by Malcolm Parsons

2004-05-19 10:16  tjdwave

        * libdirac_common/: mot_comp.cpp, pic_io.cpp: Replaced zero-padding
          with edge-padding to eliminate colour-fringeing at low bitrates.
          Mod to set padded values to 0 when compensating frames.

2004-05-18 08:46  tjdwave

        * README, encoder/encmain.cpp, libdirac_common/frame_buffer.cpp,
          libdirac_common/frame_buffer.h, libdirac_common/pic_io.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/seq_compress.cpp: Added support for I-frame only
          coding by setting num_L1 equal 0; num_L1 negative gives a single
          initial I-frame ('infinitely' many L1 frames). Revised quantiser
          selection to cope with rounding error noise.

2004-05-14 18:27  stuart_hc

        * decoder/decmain.cpp: Added better error checking.

2004-05-14 18:25  stuart_hc

        * libdirac_common/pic_io.cpp, libdirac_common/pic_io.h,
          picheader/headmain.cpp: Replaced binary header files with ASCII
          text format to achieve cross-platform interoperability.
          Rearranged PicOutput constructor to permit code reuse from
          picheader/headmain.cpp

2004-05-14 18:20  stuart_hc

        * decoder/Makefile.am, encoder/Makefile.am, picheader/Makefile.am:
          Use LDADD to ensure files which depend on libraries are rebuilt
          when necessary.

2004-05-14 15:21  tjdwave

        * README: Build information now incorporated.

2004-05-14 11:48  stuart_hc

        * bootstrap: Avoid errors when mixing versions of autotools.

2004-05-14 11:47  stuart_hc

        * make_debug.sh: Rearranged to use "make" to be more maintainable.

2004-05-12 17:04  tjdwave

        * decoder/decmain.cpp, picheader/headmain.cpp,
          libdirac_encoder/seq_compress.cpp:
          Done general code tidy, implementing copy constructors,
          assignment= and const correctness for most classes. Replaced Gop
          class by FrameBuffer class throughout.  Added support for frame
          padding so that arbitrary block sizes and frame dimensions can be
          supported.

2004-05-12 17:03  tjdwave

        * encoder/encmain.cpp:
          Done general code tidy, implementing copy constructors,
          assignment= and const  correctness for most classes. Replaced Gop
          class by FrameBuffer class throughout. Added support for frame
          padding so that arbitrary block sizes and frame  dimensions can
          be supported.

2004-05-12 10:23  tjdwave

        * reconf: Removed since it duplicated the job of ./bootstrap.

2004-05-12 10:20  tjdwave

        * dirac_build_howto.txt: All build instructions are now in the
          README file.  Information on creating a distribution removed
          since it is not indended for the target audience.

2004-05-12 09:46  tjdwave

        * win/xparam/README: XParam library is no longer needed to build
          Dirac.

2004-05-12 09:35  tjdwave

        * libdirac_common/arith_codec.h, libdirac_common/arrays.h,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/bit_manager.cpp, libdirac_common/bit_manager.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/context.h, libdirac_common/frame.cpp,
          libdirac_common/frame.h, libdirac_common/golomb.cpp,
          libdirac_common/golomb.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_common/upconvert.cpp,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h: Done general code tidy,
          implementing copy constructors, assignment= and const correctness
          for most classes. Replaced Gop class by FrameBuffer class
          throughout.  Added support for frame padding so that arbitrary
          block sizes and frame dimensions can be supported.

2004-05-12 09:21  stuart_hc

        * libdirac_common/: gop.cpp, gop.h, Makefile.am: FrameBuffer
          classes (frame_buffer.{cpp,h}) now replace Gop classes
          (gop.{cpp,h}).

2004-05-12 09:14  tjdwave

        * libdirac_common/: frame_buffer.cpp, frame_buffer.h: Initial
          commit of FrameBuffer classes to handle free-style temporal
          reference structures. Replaces Gop class (gop.{cpp,h}).

2004-05-11 17:11  stuart_hc

        * Makefile.am, bootstrap, configure.ac, decoder/Makefile.am,
          doc/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          picheader/Makefile.am: Removed use of libtool - all libraries and
          binaries are now static for ease of development & debugging.
          Added tests for documentation tools and added documentation to
          default make target 'all'.

2004-05-11 15:17  tjdwave

        * Makefile.am, README, configure.ac, dirac_build_howto.txt,
          decoder/Makefile.am, decoder/decmain.cpp, encoder/Makefile.am,
          encoder/encmain.cpp, libdirac_common/cmd_line.cpp,
          libdirac_common/cmd_line.h, libdirac_encoder/seq_compress.cpp,
          picheader/Makefile.am, picheader/headmain.cpp, win/Makefile,
          win/README, win/xparam/README: Removed dependency on XParam CLI
          library for both encoder and decoder.

2004-05-11 15:15  tjdwave

        * doc/dirac_algor.tex: Removed inline comments and notes. Added
          text describing frame types (I, L1 and L2) and relation to MPEG
          types.

2004-05-10 05:44  chaoticcoyote

        * doc/dirac_algor.tex: Newest version of "programmer's guide"

2004-05-10 05:43  chaoticcoyote

        * libdirac_common/: cmd_line.cpp, cmd_line.h: Simple, portable
          command-line parser (eliminates Xparam dependency)

2004-05-10 05:41  chaoticcoyote

        * doc/dirac_algor.tex, encoder/encmain.cpp,
          libdirac_common/Makefile.am: Updated dirac algorithm document
          Modified encoder to use simple, portable command-line parser

2004-05-10 02:04  chaoticcoyote

        * encoder/decmain.cpp: Removed spurious file

2004-04-25 23:27  chaoticcoyote

        * win/: README, xparam/README: Read Me files to explain the context
          of this directory and Makefile

2004-04-25 23:16  chaoticcoyote

        * win/Makefile: Added nmake makefile for Microsoft Visual C++

2004-04-22 23:14  chaoticcoyote

        * make_debug.sh: Enhanced the debug build script to support
          different architectures

2004-04-22 22:11  chaoticcoyote

        * misc/xparam-1.22-gcc-3.4.0.patch: A patch for xparam 1.22 to work
          around a GCC 3.4.0 internal compiler error

2004-04-22 22:08  chaoticcoyote

        * make_debug.sh, libdirac_encoder/comp_compress.cpp: Fixed warning
          generated by some versions of GCC for
          libdirac_encoder/comp_compress.cpp Added make_debug.sh script to
          build debuggable, profilable versions of encoder and decoder

2004-04-16 04:12  chaoticcoyote

        * doc/Makefile.in: Removed spurious file

2004-04-16 04:11  chaoticcoyote

        * doc/: Makefile.in, dirac_api.doxygen.in: Added additional
          documentation build files

2004-04-16 04:10  chaoticcoyote

        * Makefile.am, doc/Makefile.am, doc/dirac_api.doxygen: Addiitonal
          work on generating docs for distribution

2004-04-16 02:41  chaoticcoyote

        * doc/: dirac_algor.tex, dirac_algorithm2.tex: Renamed algorithm
          document

2004-04-16 02:28  chaoticcoyote

        * Makefile.am, doc/Makefile.am: Added documentation targets to
          makefiles

2004-04-15 14:59  chaoticcoyote

        * configure.ac: Added doc/Makefile

2004-04-15 14:57  chaoticcoyote

        * doc/Makefile.am: Added makefile boilerplate to generate docusment
          via "docs" target

2004-04-15 14:54  chaoticcoyote

        * configure.ac: Added program checks for Doxygen and LaTeX

2004-04-15 13:31  chaoticcoyote

        * configure.ac: Updated to version 0.2.0

2004-04-15 13:30  chaoticcoyote

        * doc/dirac_algorithm2.tex: Dirac algorithm document added

2004-04-12 02:57  chaoticcoyote

        * Makefile.am, decoder/decmain.cpp, encoder/encmain.cpp,
          libdirac_common/pic_io.cpp: Fixed problem Intel C++ had in
          finding xparam headers on Linux Solved Segmentation Fault bug in
          pic_io.cpp

2004-04-11 23:54  chaoticcoyote

        * libdirac_common/: arith_codec.h, bit_manager.h, context.h:
          Additional comments

2004-04-11 23:50  chaoticcoyote

        * libdirac_common/arrays.h, libdirac_common/band_codec.h,
          libdirac_common/bit_manager.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/golomb.cpp,
          libdirac_common/gop.cpp, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/pic_io.cpp, libdirac_common/upconvert.cpp,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.cpp,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_utils.cpp,
          libdirac_motionest/motion_estimate.cpp: Modifications to allow
          compilation by Visual C++ 6.0 Changed local for loop declarations
          into function-wide definitions Replaced variable array
          declarations with new/delete of dynamic array Added second
          argument to allocator::alloc calls, since MS has no default Fixed
          missing and namespace problems with min, max, cos, and abs Added
          typedef unsigned int uint (MS does not have this) Added a few
          missing std:: qualifiers that GCC didn't require

2004-04-11 17:25  chaoticcoyote

        * windows/dirac/: dirac.dsw, libdirac_common/libdirac_common.dsp,
          libdirac_decoder/libdirac_decoder.dsp,
          libdirac_encoder/libdirac_encoder.dsp,
          libdirac_motionest/libdirac_motionest.dsp: Added initial Windows
          Visual Studio C++ 6.0 project files

2004-04-06 19:06  chaoticcoyote

        * libdirac_common/: arith_codec.h, arrays.h, band_codec.h,
          bit_manager.h, common.h, context.h, frame.h, gop.h, mot_comp.h,
          motion.h, mv_codec.h, pic_io.h, upconvert.h, wavelet_utils.h:
          Boilerplate for Doxygen comments; testing ability to commit into
          SF CVS

2004-04-05 04:05  chaoticcoyote

        * libdirac_motionest/: downconvert.h, me_mode_decn.h, me_subpel.h,
          me_utils.h, motion_estimate.h: Updated Doxygen API documentation
          comments Test to see if Scott's CVS is now working correctly

2004-03-30 16:52  chaoticcoyote

        * doc/dirac_api.doxygen, libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.h: New Doxygen comments

2004-03-29 02:52  chaoticcoyote

        * libdirac_decoder/: comp_decompress.h, frame_decompress.h,
          seq_decompress.h: Added Doxygen comments

2004-03-22 01:33  chaoticcoyote

        * doc/dirac_doc_howto.txt: Added more description of HTML and LATEX
          document generation

2004-03-22 01:04  chaoticcoyote

        * libdirac_encoder/: comp_compress.cpp, comp_compress.h,
          frame_compress.h, seq_compress.cpp, seq_compress.h: Added API
          documentation to encoder library Moved large constructors so they
          are no longer inlined

2004-03-21 21:01  chaoticcoyote

        * doc/: libdirac_encoder_api_foot.html,
          libdirac_encoder_api_head.html: Adding custome header and footer
          for HTML libdirac_encoder docs

2004-03-21 21:00  chaoticcoyote

        * doc/: libdirac_encoder_api.doxygen, libdirac_encoder_foot.html,
          libdirac_encoder_head.html: Adjusting file names

2004-03-21 20:51  chaoticcoyote

        * doc/: libdirac_encoder_api.doxygen, libdirac_encoder_foot.html,
          libdirac_encoder_head.html: Added files to generate socumentation
          specific to libdirac_encoder

2004-03-21 19:26  chaoticcoyote

        * doc/dirac_api.doxygen: Change graphic configuration

2004-03-21 14:05  chaoticcoyote

        * dirac_build_howto.txt, doc/dirac_api.doxygen,
          doc/dirac_api_foot.html, doc/dirac_api_head.html,
          doc/dirac_doc_howto.txt: Updated documentation files

2004-03-21 13:06  chaoticcoyote

        * ltmain.sh, reconf: Updated autoconf to use libtoolize Removed
          spurious ltmain.sh

2004-03-19 07:43  chaoticcoyote

        * doc/dirac_algorithm.doc: Removed Word doc because the conversion
          didn't work

2004-03-19 07:35  chaoticcoyote

        * doc/: dirac_algorithm.doc, dirac_api.doxygen: Created document
          diractory Populated doc directory with preliminary texts

2004-03-13 17:34  chaoticcoyote

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_decoder/Makefile.am, libdirac_encoder/Makefile.am,
          libdirac_motionest/Makefile.am: Disabled auto-dependency checking
          in newer versions of AutoMake

2004-03-13 17:11  chaoticcoyote

        * ltmain.sh, reconf, libdirac_common/Makefile.am: Required files
          for for autoconf

2004-03-12 17:09  chaoticcoyote

        * NEWS: Minor change to test commit ability

2004-03-11 17:45  timborer

        * AUTHORS, COPYING, ChangeLog, INSTALL, Makefile.am, NEWS, README,
          TODO, bootstrap, configure.ac, dirac.pc.in, decoder/Makefile.am,
          decoder/decmain.cpp, encoder/Makefile.am, encoder/decmain.cpp,
          encoder/encmain.cpp, libdirac_common/Makefile.am,
          libdirac_common/arith_codec.h, libdirac_common/arrays.h,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/bit_manager.cpp, libdirac_common/bit_manager.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/context.h, libdirac_common/frame.cpp,
          libdirac_common/frame.h, libdirac_common/golomb.cpp,
          libdirac_common/golomb.h, libdirac_common/gop.cpp,
          libdirac_common/gop.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_common/upconvert.cpp,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h, libdirac_decoder/Makefile.am,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h, libdirac_encoder/Makefile.am,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h, libdirac_motionest/Makefile.am,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h, picheader/Makefile.am,
          picheader/headmain.cpp: Initial import (well nearly!)

2004-03-11 17:45  timborer

        * AUTHORS, COPYING, ChangeLog, INSTALL, Makefile.am, NEWS, README,
          TODO, bootstrap, configure.ac, dirac.pc.in, decoder/Makefile.am,
          decoder/decmain.cpp, encoder/Makefile.am, encoder/decmain.cpp,
          encoder/encmain.cpp, libdirac_common/Makefile.am,
          libdirac_common/arith_codec.h, libdirac_common/arrays.h,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/bit_manager.cpp, libdirac_common/bit_manager.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/context.h, libdirac_common/frame.cpp,
          libdirac_common/frame.h, libdirac_common/golomb.cpp,
          libdirac_common/golomb.h, libdirac_common/gop.cpp,
          libdirac_common/gop.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_common/upconvert.cpp,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h, libdirac_decoder/Makefile.am,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h, libdirac_encoder/Makefile.am,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h, libdirac_motionest/Makefile.am,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h, picheader/Makefile.am,
          picheader/headmain.cpp: Initial revision

2006-11-13 09:41  tjdwave

        * libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/quant_chooser.cpp: Changed quantiser offsets to
          be different for Intra and Inter frames, as per the latest draft
          of the spec. Having an offset of 0.5*quantiser for intra frames
          improves performance at high rate, especially iterated coding
          with Dirac Pro apps.

2006-11-09 12:11  tjdwave

        * doc/latex_spec/: arith-encoder.tex, arith.tex,
          layout-fullsize.tex, low-delay.tex, mc.tex, motion-dec.tex,
          profilelevel.tex, spec-conventions.tex, spec-structure.tex,
          wlt-dec.tex: Added more text on the low-delay syntax and decoded
          picture buffer model.  Clarified arithmetic decoding process and
          conventions.

2006-11-09 11:30  tjdwave

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/frame_buffer.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_encoder/quant_chooser.cpp,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp: Overall improvements to
          encoding framework to improve quality for difficult pictures and
          at low bit rates. Changes to the RDO parameters are experimental
          and they may change again.

          - Added test for whether a frame is a B frame or not - Identified
          Layer 1 frames with P frames and Layer 2 with B frames, rather
          than with Inter Ref and Inter Non-ref respectively. This is more
          efficient with the new GOP structure - Modified RDO framework to
          provide correction where there has been ME failure i.e. lots of
          Intra blocks - Slightly increased ME search areas - Corrected the
          frame type parameter for the final B frame in a sequence -
          Changed confusing terminology for costs/errors in quantisation
          factor selection - Added overall PSNR stats for a sequence for
          performance comparisons

2006-10-30 15:17  tjdwave

        * doc/latex_spec/: arith.tex, dataenc.tex, motion-dec.tex,
          wlt-dec.tex: Fixed bug in specification of inverse quantisation.
          Changed default arithmetic decoding padding value to 1 from 0, so
          after reading in LENGTH bytes, a value of 1 is used from that
          point. This should support early termination i.e.  encode only
          the first few values in a subband and then the decoder will
          correctly decode the remainder as 0, but this is as yet untested.

2006-10-30 14:57  tjdwave

        * libdirac_common/arith_codec.cpp: Fixed bug so that the decoder
          can now append any data to the end of the arithmetically encoded
          block and still decode correctly. Default padding data is all 1s
          - this should make a null or terminated subband decode with
          zeroes.

2006-10-30 13:42  tjdwave

        * libdirac_common/band_codec.cpp, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_decoder/comp_decompress.cpp: Fixed definitions of
          mean/median so that unbiased mean values are used.  Likewise
          changed the prediction for DC values to take account of the fact
          that they may be negative. These changes change the bitstream.

2006-10-30 13:38  tjdwave

        * doc/latex_spec/: motion-dec.tex, spec-conventions.tex,
          wlt-dec.tex: Changed specification of division so that it agrees
          with C/C++ standards.  Traced through these changes to
          specification of split mode, block dc value and intra dc band
          prediction.

2006-10-26 16:22  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Moved to using cout instead
          of cerr for reporting.

2006-10-26 16:07  tjdwave

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/seq_compress.cpp: Made  operation of retired
          picture list comply with specification: only reference pictures
          are signalled to be retired and non-reference pictures are
          retired by the decoder once they are displayed.

          Clarified frame type parameters so as to be sure they always
          agree. This will need further refactoring.

          Reference frames are now cleaned from the buffer _after_ being
          the current frame has been decoded, as per the spec. This allows
          slightly more flexible GOP structures.

2006-10-25 14:01  tjdwave

        * libdirac_common/common.cpp: Fixed bug with wrong quantiser offset
          being used: now complies with spec again.

2006-10-24 09:09  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex,
          dirac-overview.tex, layout-fullsize.tex, picture-dec.tex,
          profilelevel.tex, spec-conventions.tex, spec-structure.tex,
          state-macros.tex, vidsys-sigrange.tex, vidsys.tex: First stab at
          including the low-delay syntax used for Dirac Pro profiles,
          together with profile and level text. Work in progress!

2006-10-19 16:01  tjdwave

        * doc/latex_spec/picture-dec.tex: Changed order of reference buffer
          management so that a reference picture is not removed until after
          the current picture has been decoded,

2006-10-19 14:53  tjdwave

        * libdirac_common/band_codec.cpp: Put in Dave Schleef's patch for
          making the computation of parent coefficient coordinates correct
          and spec compliant.

2006-10-10 15:04  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/dirac_types.h,
          libdirac_encoder/dirac_encoder.cpp: Fixed bug with aspect ratio
          being set to 0/0. Now it should be set to the correct value from
          the video format defaults.

2006-10-09 16:24  tjdwave

        * libdirac_common/wavelet_utils_mmx.cpp: Renamed functions with
          consistent filter names.

2006-10-05 16:22  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common_types.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h: Given wavelet filters correct
          names and numbers as per spec. Added support for HAAR1 and HAAR2
          filters. FIDELITY filter will be forthcoming.

2006-09-28 18:20  davidf_

        * doc/: browser_compatibility.html, licences.html, licenses.html,
          template.html, template2.html, todo.html: fix license spelling
          mistake correction typos/misses/references

2006-09-28 18:13  davidf_

        * doc/: contact.html, documentation.html, faq.html,
          getting_involved.html, index.html, overview.html, soc2006.html,
          soc2006_ideas.html, specification.html, styles.css, todo.html,
          documentation/publications/diracoverview-ibc2006.pdf: merge shas'
          website fixes added ibc2006 publication

2006-09-28 14:59  tjdwave

        * libdirac_common/: common.cpp, mot_comp.cpp: Fixed the block
          parameter testing so as to be compliant with the specification.
          Non-overlapped blocks are now allowed and supported. The raised
          cosine macro has now been removed and only linear weights are
          supported.

2006-09-28 10:17  tjdwave

        * doc/latex_spec/low-delay.tex: Added file to cover low delay
          syntax.

2006-09-28 10:08  tjdwave

        * doc/latex_spec/: abstract.tex, arith-contexts.tex,
          arith-datainput.tex, arith-decoder-ba.tex,
          arith-decoder-impl.tex, arith-decoder-sint.tex,
          arith-decoder-sua.tex, arith-decoder-tua.tex,
          arith-decoder-uua.tex, arith-decoder.tex, arith-encoder.tex,
          arith-engine.tex, arith-init.tex, arith-intro.tex,
          arith-update.tex, arith.tex, begin-bs.tex, begin-compmethods.tex,
          begin-dwt-fwd.tex, begin-dwt-parentchild.tex, begin-dwt.tex,
          begin-ec-dwt.tex, begin-ec-mc.tex, begin-ec.tex,
          begin-mc-accuracy.tex, begin-mc-blocks.tex, begin-mc-global.tex,
          begin-mc-intra.tex, begin-mc.tex, begin-more.tex,
          begin-pictypes.tex, begin-videocoding.tex, bs-intro.tex,
          bs-semantics.tex, bs-spec.tex, bs-syntax.tex,
          conv-bs-bytealign.tex, conv-bs-defaults.tex, conv-bs-reading.tex,
          conv-intro.tex, conv-parse-diagnums.tex, conv-parse-diagrams.tex,
          conv-pseudocode-syntax.tex, conv-pseudocode.tex,
          dataenc-bool.tex, dataenc-input.tex, dataenc-intro.tex,
          dataenc-nbitlit.tex, dataenc-nbytelit.tex, dataenc-vlc-segol.tex,
          dataenc-vlc-su.tex, dataenc-vlc-uegol.tex, dataenc-vlc-ut.tex,
          dataenc-vlc-uu.tex, dataenc-vlc.tex, dirac-concepts.tex,
          dirac-overview.tex, gendec.tex, idwt-1dsynthesis.tex,
          idwt-filters.tex, idwt-interleaving.tex, idwt-intro.tex,
          idwt-lifting.tex, idwt-padremoval.tex, idwt-synthesis.tex,
          idwt-vhsynthesis.tex, idwt.tex, intro-docstruct.tex,
          intro-purpose.tex, intro-scope.tex, layout-fullsize.tex,
          logicalstruct-accessunit.tex, logicalstruct-arithcoding.tex,
          logicalstruct-blocks.tex, logicalstruct-coordinates.tex,
          logicalstruct-dwt.tex, logicalstruct-frameordering.tex,
          logicalstruct-frames.tex, logicalstruct-globalmc.tex,
          logicalstruct-intro.tex, logicalstruct-localmc.tex,
          logicalstruct-parseunit.tex, logicalstruct-sequence.tex,
          logicalstruct-subbands.tex, logicalstruct-superblocks.tex,
          logicalstructs.tex, mc-alg.tex, mc-blockcoverage.tex,
          mc-chomascaling.tex, mc-impl.tex, mc-intro.tex,
          mc-obmc-matrix.tex, mc-precision.tex, mc-pred.tex,
          mc-upconvert.tex, motion-dec.tex, parsediagrams.tex,
          prep-idwt-codeblk-dim.tex, prep-idwt-codeblk-process.tex,
          prep-idwt-coef-process.tex, prep-idwt-conventions.tex,
          prep-idwt-ctxt-init.tex, prep-idwt-ctxt-magnitude.tex,
          prep-idwt-ctxt-quantindex.tex, prep-idwt-ctxt-sign.tex,
          prep-idwt-ctxt-skip.tex, prep-idwt-pred-dc.tex,
          prep-idwt-process.tex, prep-idwt.tex, prep-mc-ctxt-init.tex,
          prep-mc-decode-blkmotion.tex, prep-mc-decode-dc.tex,
          prep-mc-decode-mv.tex, prep-mc-decode-predictionmode.tex,
          prep-mc-decoding.tex, prep-mc-mbdata.tex,
          prep-mc-predapeature.tex, prep-mc-predictionmodes.tex,
          prep-mc-predmbcommon.tex, prep-mc-predmbglobal.tex,
          prep-mc-predmbsplit.tex, ref-default-videoparams.tex,
          ref-quantization-lut.tex, semantics-auh.tex, semantics-dwt.tex,
          semantics-intro.tex, semantics-mv.tex, semantics.tex,
          spec-conventions.tex, spec-structure.tex, state-macros.tex,
          wlt-dec.tex: Removing a whole load of cruft files. Bug fixes.

2006-09-12 12:18  tjdwave

        * doc/latex_spec/state-macros.tex: [no log message]

2006-09-12 10:00  tjdwave

        * doc/latex_spec/ref-default-videoparams.tex: Completed tables -
          added various decoding presets too.

2006-09-12 09:59  tjdwave

        * doc/latex_spec/sourcepresets.tex: This contains the presets for
          the source parameters. This needs to be merged with the video
          systems model section.

2006-09-12 09:58  tjdwave

        * doc/latex_spec/vidsys.tex: Slightly revised - to be merged with
          source parameters presets.

2006-09-12 09:56  tjdwave

        * doc/latex_spec/: idwt.tex, mc.tex, picture-dec.tex: Finished
          first draft of overall picture decoding process. Added stuff on
          global motion compensation (_probably_ works now).

2006-09-12 09:54  tjdwave

        * doc/latex_spec/: bs-spec.tex, motion-dec.tex, wlt-dec.tex:
          Created unified chapter files for parsing elements. Completed
          overall stream syntax chapter.

2006-09-12 09:52  tjdwave

        * doc/latex_spec/: arith.tex, dataenc.tex: Unified data access
          files into chapter files.

2006-09-12 09:51  tjdwave

        * doc/latex_spec/: dirac-concepts.tex, parsing.tex: Restructured
          part structure files.

2006-09-12 09:48  tjdwave

        * doc/latex_spec/spec-conventions.tex: Updated/added material on
          the way the pseudocode works and the mathematical notation. This
          section still needs work and reordering.

2006-09-12 09:45  tjdwave

        * doc/latex_spec/intro.tex: Revised and unified the general
          introduction.

2006-09-12 09:44  tjdwave

        * doc/latex_spec/spec-structure.tex: Revised overall document
          structure.

2006-09-12 09:42  tjdwave

        * doc/latex_spec/parsediagrams.tex: Added parse diagrams as an
          appendix.

2006-08-24 10:32  tjdwave

        * doc/latex_spec/: decoding-ops.tex, idwt.tex, state-macros.tex:
          Updated inverse wavelet transform section. Introduced Haar
          variants and added a fidelity filter.

2006-08-21 13:33  tjdwave

        * doc/latex_spec/: arith.tex, bs-spec.tex, dataenc.tex,
          decoding-ops.tex, layout-fullsize.tex, mc.tex, motion-dec.tex,
          parsing.tex, spec-structure.tex, state-macros.tex, wlt-dec.tex:
          Done motion data decoding and motion compensation. Amalgamated
          file contents to simplify structure.

2006-08-11 15:51  tjdwave

        * libdirac_common/: golomb.cpp, golomb.h:
          Functionality is now provided in the Byte IO library.
          ----------------------------------------------------------------------

2006-07-28 14:33  tjdwave

        * libdirac_common/common.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_encoder/dirac_encoder.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h: Removed the Macroblock
          "Common" mode. This means that each prediction unit within a
          macroblock will have to code a mode. Motion data coding has also
          been changed so that instead of coding all the prediction modes
          first and then all the motion data, prediction modes are included
          in the motion data as per the spec.

          An updated version of the latex spec in which the Common mode is
          omitted is in preparation and will be committed in the next
          couple of weeks.

2006-07-19 12:29  tjdwave

        * doc/latex_spec/prep-idwt-process.tex: Added initialisation of the
          coefficient_reset variable.

2006-07-19 12:19  tjdwave

        * doc/latex_spec/: arith-contexts.tex, arith-decoder-sint.tex,
          dataenc-vlc-segol.tex, decoding-ops.tex, intro-docstruct.tex,
          parsing.tex, prep-idwt-coef-process.tex, state-macros.tex,
          figs/block-coverage.eps, figs/obmc-profile.eps: Mods to interface
          with arithmetic coding changes.

2006-07-19 11:48  tjdwave

        * doc/latex_spec/: arith-contexts.tex, arith-datainput.tex,
          arith-decoder-sint.tex, arith-decoder.tex, arith-engine.tex,
          arith-init.tex, arith-intro.tex, arith-update.tex, arith.tex:
          Refactored to take account of exp-Golomb binarisation and the use
          of global context indices being passed to arithmetic decoding
          operations.

2006-07-18 11:36  tjdwave

        * libdirac_common/: band_codec.cpp, band_codec.h: Changed nhood sum
          calculation so that it only takes account of whether the
          neighbour is zero or not.

2006-07-07 15:07  tjdwave

        * encoder/encmain.cpp: Fixed bug with framerate denominator being
          incorrectly set if omitted.

2006-07-07 12:14  tjdwave

        * doc/latex_spec/: intro-docstruct.tex, mc-intro.tex,
          mc-upconvert.tex, mc.tex: Debugging commit.

2006-07-07 12:07  tjdwave

        * doc/latex_spec/: arith-contexts.tex, arith.tex, bs-spec.tex,
          bs-syntax.tex, decoding-ops.tex, idwt.tex,
          prep-idwt-coef-process.tex, prep-idwt-conventions.tex,
          prep-idwt-ctxt-quantindex.tex, prep-idwt-process.tex,
          prep-idwt.tex, spec-structure.tex, state-macros.tex, wlt-dec.tex,
          figs/block-coverage.eps, figs/block-offset.eps, figs/block.eps,
          figs/dwt.eps, figs/frame-ordering.eps, figs/obmc-profile.eps,
          figs/sequence.eps, figs/superblock-16pu.eps,
          figs/superblock-1pu.eps, figs/superblock-4pu.eps: Updated and
          refactored data access and coefficient decoding sections.  Spec
          should be up to date and accurate for coefficient decoding, but
          fine-tuning and checking is required. Diagrams also needed.

          Major change is in the way arithmetic decoding operations are
          called. Just specify sets of contexts to be used for follow bits,
          data bits and the sign by passing indices into the state
          variable, which maintains the contexts.

          This simplifies the code in the stream syntax, avoiding local
          copies etc.  Explanation will be required for the context
          indices. The arithmetic decoding section needs updating to
          reflect this change and use of interleaved exp- Golomb coding.

2006-07-07 08:56  tjdwave

        * doc/latex_spec/layout-fullsize.tex: Added temporary environment
          pseudo* for documenting _part_ of a function's pseudocode (no
          function header).  Fixed bug where \bsRET reduces indent by 1 -
          this broke indentation when there were a number of returns in a
          function.

2006-07-06 12:29  tjdwave

        * libdirac_common/: band_codec.cpp, band_codec.h: Changed coding of
          codeblock quantiser indices to be differential codeblock to
          codeblock, as per Tim's stream syntax, rather than differential
          with respect to the subband quantiser index.

          N.B. this now does not agree with version 0.9.

2006-07-03 14:57  tjdwave

        * doc/latex_spec/: arith-contexts.tex, arith-datainput.tex,
          arith-decoder-ba.tex, arith-decoder-sint.tex, arith-intro.tex:
          Initial update to take account of exp-Golomb binarisation.

2006-07-03 14:00  tjdwave

        * doc/latex_spec/arith-decoder-sint.tex: Adding to update to
          exp-Golomb binarisation.

2006-07-03 13:15  tjdwave

        * doc/latex_spec/: dataenc-bool.tex, dataenc-input.tex,
          dataenc-intro.tex, dataenc-nbitlit.tex, dataenc-nbytelit.tex,
          dataenc-vlc-segol.tex, dataenc-vlc-su.tex, dataenc-vlc-uegol.tex,
          dataenc-vlc-ut.tex, dataenc-vlc.tex, dataenc.tex: Brought
          up-to-date to do interleaved exp-Golomb coding. Included a
          section on bit-packing and reading conventions. To Do: Need to
          align with arithmetic decoding section.

2006-07-03 10:08  tjdwave

        * doc/latex_spec/: layout-fullsize.tex, state-macros.tex: Adding
          shortcuts for decoder state values/variables. This means we can
          change format, or introduce new paramater classes by (mostly)
          modding modding only state-macros.tex.

2006-06-29 15:11  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils.h, common.cpp:
          Defined new Wavelet Filter class VHFilterHaar to include HAAR
          filter support in Dirac.

2006-06-27 18:26  asuraparaju

        * README: Include explanation for new encoder command line
          variables iwlt_filter and rwlt_filter.

2006-06-27 18:17  asuraparaju

        *
          doc/documentation/code/programmers_guide/encoder_data_structs.htm:
          Reflect changes to dirac_encparams_t struct to which two fields
          have been added.  These fields specify the wavelet filters to use
          for intra frames and inter frames.

2006-06-26 17:44  asuraparaju

        * encoder/encmain.cpp: [Spec Compliance] Include command line
          arguments to process non-default transform filters for intra and
          inter frames.

2006-06-26 17:43  asuraparaju

        * unit_tests/motion_comp_test.cpp: Ensure that the number of
          reference frames is specified when creating a CodecParams object.

2006-06-26 17:43  asuraparaju

        * libdirac_encoder/: dirac_encoder.cpp, dirac_encoder.h,
          frame_compress.cpp: [Spec Compliance] Use transform filters
          supplied in the command line arguments to encoder utility to set
          the transform filter in CodecParams while encoding based on frame
          type.  Set up the default frame weight and precision parameters
          correctly based on frame type and number of references.

2006-06-26 17:40  asuraparaju

        * libdirac_common/: video_format_defaults.cpp,
          video_format_defaults.h: [Spec Compliance] Added functions to
          return the default transform filter based on frame type.  The
          default frame weight and frame precision parametes are correctly
          set based on the frame type and number of references.

2006-06-26 17:39  asuraparaju

        * libdirac_common/: common.cpp, common.h: [Spec Compliance] Handle
          non-default frame weights. Include member variables in
          EncoderParams to store the transform filters for inter frame and
          intra frames supplied so that they can be used while encoding.

2006-06-26 17:38  asuraparaju

        * libdirac_byteio/mvdata_byteio.cpp,
          libdirac_byteio/transform_byteio.cpp,
          libdirac_common/mot_comp.cpp, libdirac_common/mot_comp.h: [Spec
          Compliance] Handle non-default frame weights.

2006-06-23 15:17  tjdwave

        * doc/latex_spec/layout-fullsize.tex: Created unified style for
          syntax and semantics called pseudo. No longer uses typewriter
          font - Roman instead.

2006-06-23 10:41  tjdwave

        * doc/latex_spec/: arith-intro.tex, arith.tex, bs-spec.tex,
          dataenc-intro.tex, dataenc.tex, decoding-ops.tex,
          dirac-concepts.tex, dirac-overview.tex, idwt-intro.tex, idwt.tex,
          logicalstructs.tex, mc-intro.tex, mc.tex, motion-dec.tex,
          parsing.tex, picture-dec.tex, semantics.tex,
          spec-conventions.tex, spec-structure.tex, stream-access.tex,
          wlt-dec.tex: Reorganised so that file input is hierarchical, to
          make simultaneous working easier.

2006-06-23 08:48  tjdwave

        * doc/latex_spec/: bs-syntax.tex, layout-fullsize.tex: Moved
          streamsyntax environment definition into layout-fullsize.tex so
          that it's available to all input files.

2006-06-22 12:42  asuraparaju

        * doc/specification.html: Included links to latest Stream Syntax
          Document and Specification Document.

2006-06-22 10:13  tjdwave

        * doc/latex_spec/: intro-docstruct.tex, spec-structure.tex:
          Tentative revision of the specification structure. A rationale is
          contained in intro-docstruct.tex.

2006-06-22 09:02  tjdwave

        * doc/latex_spec/figs/: block-coverage.eps, block-coverage.fig,
          block.eps, block.fig, Makefile, block-offset.eps,
          block-offset.fig, dwt.eps, dwt.fig, frame-ordering.eps,
          frame-ordering.fig, obmc-profile.eps, obmc-profile.fig,
          sequence.eps, sequence.fig, stream.fig, superblock-16pu.eps,
          superblock-16pu.fig, superblock-1pu.eps, superblock-1pu.fig,
          superblock-4pu.eps, superblock-4pu.fig,
          wavelet-transform-process.fig: Adding in diagrams.

2006-06-22 08:57  tjdwave

        * doc/latex_spec/tools/: framed.sty, listings.zip, mkdep.pl:
          Additional latex spec commits.

2006-06-22 08:54  tjdwave

        * doc/latex_spec/: Makefile, abstract.tex, arith-contexts.tex,
          arith-datainput.tex, arith-decoder-ba.tex,
          arith-decoder-impl.tex, arith-decoder-sua.tex,
          arith-decoder-tua.tex, arith-decoder-uua.tex, arith-decoder.tex,
          arith-encoder.tex, arith-engine.tex, arith-init.tex, arith.tex,
          begin-bs.tex, begin-compmethods.tex, begin-dwt-fwd.tex,
          begin-dwt-parentchild.tex, begin-dwt.tex, begin-ec-dwt.tex,
          begin-ec-mc.tex, begin-ec.tex, begin-mc-accuracy.tex,
          begin-mc-blocks.tex, begin-mc-global.tex, begin-mc-intra.tex,
          begin-mc.tex, begin-more.tex, begin-pictypes.tex,
          begin-videocoding.tex, bs-intro.tex, bs-semantics.tex,
          bs-syntax.tex, coder-intro.tex, conv-bs-bytealign.tex,
          conv-bs-defaults.tex, conv-bs-reading.tex, conv-intro.tex,
          conv-parse-diagnums.tex, conv-parse-diagrams.tex,
          conv-pseudocode-syntax.tex, conv-pseudocode.tex,
          dataenc-bool.tex, dataenc-nbitlit.tex, dataenc-nbytelit.tex,
          dataenc-vlc-segol.tex, dataenc-vlc-su.tex, dataenc-vlc-uegol.tex,
          dataenc-vlc-ut.tex, dataenc-vlc-uu.tex, dataenc-vlc.tex,
          dataenc.tex, gendec.tex, idwt-1dsynthesis.tex, idwt-filters.tex,
          idwt-interleaving.tex, idwt-lifting.tex, idwt-padremoval.tex,
          idwt-synthesis.tex, idwt-vhsynthesis.tex, idwt.tex,
          intro-docstruct.tex, intro-purpose.tex, intro-scope.tex,
          layout-fullsize.tex, logicalstruct-accessunit.tex,
          logicalstruct-arithcoding.tex, logicalstruct-blocks.tex,
          logicalstruct-coordinates.tex, logicalstruct-dwt.tex,
          logicalstruct-frameordering.tex, logicalstruct-frames.tex,
          logicalstruct-globalmc.tex, logicalstruct-intro.tex,
          logicalstruct-localmc.tex, logicalstruct-parseunit.tex,
          logicalstruct-sequence.tex, logicalstruct-subbands.tex,
          logicalstruct-superblocks.tex, mc-alg.tex, mc-blockcoverage.tex,
          mc-chomascaling.tex, mc-impl.tex, mc-obmc-matrix.tex,
          mc-precision.tex, mc-pred.tex, mc-upconvert.tex, mc.tex,
          prep-idwt-codeblk-dim.tex, prep-idwt-codeblk-process.tex,
          prep-idwt-coef-process.tex, prep-idwt-conventions.tex,
          prep-idwt-ctxt-init.tex, prep-idwt-ctxt-magnitude.tex,
          prep-idwt-ctxt-quantindex.tex, prep-idwt-ctxt-sign.tex,
          prep-idwt-ctxt-skip.tex, prep-idwt-pred-dc.tex,
          prep-idwt-process.tex, prep-idwt.tex, prep-mc-ctxt-init.tex,
          prep-mc-decode-blkmotion.tex, prep-mc-decode-dc.tex,
          prep-mc-decode-mv.tex, prep-mc-decode-predictionmode.tex,
          prep-mc-decoding.tex, prep-mc-mbdata.tex,
          prep-mc-predapeature.tex, prep-mc-predictionmodes.tex,
          prep-mc-predmbcommon.tex, prep-mc-predmbglobal.tex,
          prep-mc-predmbsplit.tex, ref-default-videoparams.tex,
          ref-quantization-lut.tex, semantics-auh.tex, semantics-dwt.tex,
          semantics-intro.tex, semantics-mv.tex, spec-structure.tex,
          vidsys-aspect.tex, vidsys-colour.tex, vidsys-colourmatrix.tex,
          vidsys-colourprimaries.tex, vidsys-framerate.tex,
          vidsys-sigrange.tex, vidsys-transfer.tex, vidsys.tex: Initial
          commit of Latex port of draft specification.

2006-06-19 18:35  asuraparaju

        * libdirac_common/: common.cpp, mot_comp.cpp, mot_comp.h,
          mot_comp_mmx.cpp, mot_comp_mmx.h: [Spec Compliance] Ensure that
          block overlaps in x and y direction are integral powers of 2.
          Make the OBMC weights calculation truly linear.

2006-06-19 18:34  asuraparaju

        * libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/seq_compress.cpp: Replace std::pow operation
          with left bit-shift operator

2006-06-19 12:27  asuraparaju

        * libdirac_byteio/: byteio.h, mvdata_byteio.cpp: Fix for
          bug#1508532. Ensure that m_current_byte is re-initialised to 0 in
          the ouput byte alignment function ByteIO::OutputCurrentByte.

2006-06-16 12:07  asuraparaju

        * doc/: contact.html, documentation.html, faq.html,
          getting_involved.html, index.html, licenses.html, overview.html,
          soc2006.html, soc2006_ideas.html, specification.html,
          template2.html, todo.html,
          documentation/algorithm/algorithm/intro.htm: Ensure that links to
          Browse CVS on Sourceforge work correctly.

2006-06-16 11:38  asuraparaju

        * doc/documentation.html: Ensuring that named anchors work
          properly.

2006-06-16 11:37  asuraparaju

        * doc/documentation/code/programmers_guide/:
          common_data_structs.htm, decoder_api_example.htm,
          decoder_api_functions.htm, decoder_api_overview.htm,
          decoder_api_reference.htm, decoder_data_structs.htm,
          encoder_api_example.htm, encoder_api_functions.htm,
          encoder_api_overview.htm, encoder_api_reference.htm,
          encoder_data_structs.htm, encoding.htm, index.htm,
          input_formats.htm, intro.htm, overview.htm, software.htm: Updated
          data structs and functionality description for Dirac Codec V0.6.0

2006-06-13 12:58  asuraparaju

        * ChangeLog: [no log message]

2006-06-13 12:56  asuraparaju

        * NEWS: Updated with 0.6.0 release notes.

2006-06-13 12:35  asuraparaju

        * extras/patches/:
          README_ffmpegsvn_trunk_revision_5470-dirac-0.6.x_patch,
          ffmpegsvn_trunk_revision_5470-dirac-0.6.x.patch: Dirac 0.6.0
          patch and install notes for ffmpeg svn revision 5470.

2006-06-13 12:34  asuraparaju

        * extras/patches/: MPlayer-1.0pre7try2_dirac-0.6.x.patch,
          README_MPlayer-1.0pre7try2_dirac-0.6.x_patch: Dirac 0.6.0 patch
          and install notes for MPlayer release MPlayer-1.0pre7try2.

2006-06-13 10:07  timborer

        * libdirac_common/: arith_codec.h, mv_codec.cpp, mv_codec.h: Added
          En/DecodeUInt and En/DecodeSInt functions to the arithmetic codec
          class. These functions read and write signed and unsigned
          integers in a unified way. They are used to replace the acres of
          duplicated code in mv_codec.cpp. This change also had the happy
          side effect of removing the need for a whole slew of chooseXXX
          functions used for selecting the arithmetic coding context.

2006-06-12 16:24  stuart_hc

        * libdirac_decoder/frame_decompress.cpp: whitespace cleanup
          (corrected stray CRLF line-ending to LF)

2006-06-12 13:11  asuraparaju

        * libdirac_common/common.h, libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp: Use enumerated values for
          number of motion vector contexts and coefficient contexts instead
          of hardcoded constants. This helps in not having to change
          multiple files when the number of contexts changes.

2006-06-12 13:11  asuraparaju

        * libdirac_common/mv_codec.cpp: [Spec Compliance] Super block Split
          residual is no longer coded bit-wise but is now coded using
          truncated unary arithmetic coding.

2006-06-12 13:10  asuraparaju

        * libdirac_common/common.cpp,
          libdirac_common/video_format_defaults.cpp,
          libdirac_decoder/dirac_parser.cpp: [Spec Compliance] Ensure that
          Video format defaults are set as per spec

2006-06-12 10:06  tjdwave

        * libdirac_common/wavelet_utils.cpp: Fixed bug with setting weights
          for bands by depth - removed duplicate correction factor.

2006-06-08 17:55  asuraparaju

        * libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/common.h, libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: [Spec compliance] Number of
          contexts in Bin 1 for a Non-zero parent reduced to two from
          three.

2006-06-08 16:19  asuraparaju

        * README, encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common_types.h,
          libdirac_common/video_format_defaults.cpp: Renamed SD_PAL and
          SD_NTSC video format names to 4CIF and 4SIF to avoid confusing
          them with the SD Digital video format names.

2006-06-08 16:14  asuraparaju

        * extras/dirac_dshow/src/: basesplitter/basesplitter.vcproj,
          diracsplitter/DiracSplitter.vcproj,
          diracsplitter/DiracSplitterFile.cpp: Fix path to header and
          libraries in project files. Modify code to handle chages to Dirac
          decoder logic.

2006-06-06 17:11  asuraparaju

        * win32/VS2003/: DiracDecoder/DiracDecoder.vcproj,
          DiracEncoder/DiracEncoder.vcproj,
          libdirac_byteio/libdirac_byteio.vcproj: Fix link errors.

2006-06-06 17:11  asuraparaju

        * util/instrumentation/libdirac_instrument/: draw_overlay.cpp,
          motion_arrows.cpp, sad.cpp: Fix for bug #1501636. Ensuring that
          we are not going past array boundaries.

2006-06-06 17:08  asuraparaju

        * unit_tests/motion_comp_test.cpp: Remove tests for frame equality
          after motion estimation because rounding errors can mean that the
          frames are not equal. However the frame equality is still tested
          after zero motion compensation.

2006-06-06 17:08  asuraparaju

        * libdirac_byteio/mvdata_byteio.cpp, libdirac_common/common.h:
          [Spec Compliance] Reference frame weights are now unsigned.

2006-06-06 17:08  asuraparaju

        * README: Updated the encoder command line argument list

2006-06-05 16:00  asuraparaju

        * configure.ac: Update release id to 0.6.0

2006-06-05 15:57  asuraparaju

        * util/instrumentation/libdirac_instrument/: draw_overlay.cpp,
          motion_arrows.cpp, motion_colour.cpp, motion_colour_arrows.cpp,
          overlay.cpp, pred_mode.cpp, sad.cpp, split_mode.cpp: [Spec
          compliance] Ensure that the instrumentation utility works for
          true 8 bit data. Note that there is no support at present for
          non-8bit data.

2006-06-05 15:56  asuraparaju

        * util/instrumentation/instrmain.cpp: Read video depth from
          diagnostics input file.

2006-06-05 15:55  asuraparaju

        * libdirac_encoder/quality_monitor.cpp: [Spec compliance] Adjust
          lambda values to make them bit-depth agnostic. Tested only on 8
          bit input data. Need to test and maybe adjust for other
          bit-depths.

2006-06-05 15:55  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: [Spec compliance] Default
          Video depth is 8 bits.

2006-06-05 15:55  asuraparaju

        * libdirac_decoder/: frame_decompress.cpp, frame_decompress.h,
          seq_decompress.cpp: [Spec compliance] Include Variable bit-depth
          support in FrameDecompressor class.

2006-06-05 15:54  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils.h,
          wavelet_utils_mmx.cpp: [Spec compliance] Accuracy bits are
          required in the wavelet analysis stage. The number of bits
          required depends on the transform depth.  Shift the input data up
          1 bit to the right to increase accuracy in the Analyis stage.
          Round the input data down by 1 bit in the Synthesis stage to
          counter the shift in the analysis stage. All rounding is unbiased
          irrespective of the number of bit it is rounded to. The
          perceptual weights are adjusted for each subband depending on the
          level of the subband.

2006-06-05 15:54  asuraparaju

        * libdirac_common/mot_comp.cpp, libdirac_common/pic_io.cpp,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_motionest/me_utils.cpp,
          libdirac_motionest/me_utils_mmx.cpp: [Spec Compliance] The
          input/output is always true bit depth specified by video-depth
          and not converted to 10 bit data internally.  So no need to shift
          8 bit data by two to convert it to 10 bits.

2006-06-05 15:53  asuraparaju

        * libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_encoder/seq_compress.cpp, unit_tests/frames_test.cpp,
          unit_tests/motion_comp_test.cpp: [Spec Compliance] Set Variable
          bit-depth in FrameBuffer classe to set up FrameParams class with
          variable bit-depth.

2006-06-05 15:53  asuraparaju

        * libdirac_common/: frame.cpp, frame.h: [Spec Compliance] Support
          for multiple video depths. Included functionality to clip
          upconverted data.

2006-06-05 15:53  asuraparaju

        * libdirac_common/: common_types.h, video_format_defaults.cpp:
          [Spec Compliance] Ensure that default parameters are correctly
          set for all video formats.  Add enumerated types for D-Cinema
          video formats' parameters. Default motion vector precision has
          reverted to quarter pixel from half pixel.

2006-06-05 15:52  asuraparaju

        * libdirac_common/: common.cpp, common.h: [Spec Compliance] Add
          support for D-Cinema video formats.  Include Variable bit-depth
          support in Frame Params. Used for clipping.  Fix bug in
          calculating number of code blocks for different transform depths.

2006-06-05 15:52  asuraparaju

        * libdirac_common/arrays.h: [Spec Compliance] PIXEL_VALUE_MIN and
          PIXEL_VALUE_MAX no longer required as the min and max values are
          calculated based on the bit-depth of the input video. Fix
          indentation by replacing tabs with white space.

2006-06-05 15:51  asuraparaju

        * libdirac_byteio/transform_byteio.cpp: Fixed bug where the
          non-default wavelet filter flag was not being written to the
          bitstream when a non-default filter is used.

2006-06-05 15:51  asuraparaju

        * libdirac_byteio/seqparams_byteio.cpp: [Spec compliance] Throw an
          error if a video depth other than the default value of 8 is
          specified.

2006-06-05 15:51  asuraparaju

        * libdirac_byteio/frame_byteio.cpp: [Spec compliance] Actual
          picture number is stored in the picture header and not the offset
          from the Access unit picture number. Reference frame offsets and
          retired frame offsets are calculated from current picture number
          and not access unit header picture number.

2006-06-05 15:50  asuraparaju

        * libdirac_byteio/byteio.h: Fix warnings in doxygen documentation.

2006-06-05 15:50  asuraparaju

        * encoder/encmain.cpp: Write video depth to diagnostics output
          file.

2006-05-23 14:09  tjdwave

        * libdirac_encoder/quant_chooser.cpp: Changed initial index to 0
          from 4, so that 8 bit video will be properly coded.

2006-05-22 10:56  tjdwave

        * libdirac_encoder/quality_monitor.cpp: Modified PSNR log to output
          a table for greater clarity.

2006-05-17 18:33  asuraparaju

        * unit_tests/: motion_comp_test.cpp, motion_comp_test.h: Change
          precision type in test prototype from int to MVPrecisionType.

2006-05-16 14:53  asuraparaju

        * libdirac_common/wavelet_utils_mmx.cpp: Changed the wavelet
          transform so that unbiased rounding is not used with a shift of 1
          in the lifting stage to keep in line with the non-MMX optimised
          code.

2006-05-16 12:25  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fix g++ warnings

2006-05-16 12:24  asuraparaju

        * libdirac_encoder/quant_chooser.cpp: Minor mods to speed up error
          calculation. Overall improvement in encoding speed is about 4-5%
          for long gop Changed quantisation as per draft spec so that extra
          2 bits accuracy apply to the quantisation offset. This helps at
          low quantisation factors particularly.

2006-05-16 12:24  asuraparaju

        * libdirac_encoder/: quality_monitor.cpp, quality_monitor.h: -
          Removed superfluous filtering function.  - Computes PSNR instead
          of weighted 4th power metric; chroma PSNRs are also   computed.

2006-05-16 12:24  asuraparaju

        * libdirac_encoder/frame_compress.cpp: Spec Compliance: - Setup
          default code blocks depending on whether frame type is intra or
          inter.

2006-05-16 12:23  asuraparaju

        * libdirac_encoder/dirac_encoder.h: Change type of mv_precision in
          dirac_encparams_t function to MVPrecisionType

2006-05-16 12:23  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: Spec Compliance: - Handle
          CodeBlockMode which replaces the multi-quantisers flag.  - Set
          default spatial partition flag to false if wavelet depth is not
          set   to the default value.

2006-05-16 12:23  asuraparaju

        * libdirac_decoder/frame_decompress.cpp: Spec Compliance - Throw
          error if Zero transform flag is set for Intra frames.  - Handle
          Zero transform condition for inter frames.

2006-05-16 12:22  asuraparaju

        * libdirac_decoder/dirac_parser.h: The parser no longer returns
          STATE_PICTURE_START state. Modify the example in the doxygen
          documentation to reflect this.

2006-05-16 12:22  asuraparaju

        * libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h: Spec Compliance - multiple
          quantisers are used when code block mode is set to
          QUANT_MULTIPLE - All values are set to 0 if a block is skipped
          irrespective of whether is   is a DC block or not.  - Modified
          SetupCodeBlocks functions to use the default code blocks if
          default partitioning is enabled or values of from the bitstream
          for custom   paritioning (only for decoder)

2006-05-16 12:21  asuraparaju

        * libdirac_common/: wavelet_utils.h, wavelet_utils_mmx.cpp:
          Implement unbiased rounding for the lifting stages in all wavelet
          filters.

2006-05-16 12:21  asuraparaju

        * libdirac_common/video_format_defaults.cpp: Spec compliance - Set
          up default Codec parameters to comply with spec.  - Default
          motion vector precision is now Half Pixel.

2006-05-16 12:20  asuraparaju

        * libdirac_common/mv_codec.cpp: Spec compliance - Common Mode
          prediction function returns false for top left corner of   block.
          - Block mode prediction function return INTRA instead of
          REF1_ONLY for   the top left corner of a block - The sign flag is
          encoded/decoded as true if the value is negative.

2006-05-16 12:20  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp_mmx.cpp: Define MMX
          optimised version of Half Pixel block compensation function
          MotionCompensator_HalfPixel::CompensateBlock

2006-05-16 12:19  asuraparaju

        * libdirac_common/band_codec.cpp: Spec Compliance: - Code block
          skip flag encoded/decoded only if there is more than one code
          block in a subband - The sign flag is encoded/decoded as true if
          the value is negative.  - Max number of quantisers increased to
          97 (0..96). Throw an error if   quantisation index exceeds this
          value while decoding.  - Changed quantisation as per draft spec
          so that extra 2 bits accuracy   apply to the quantisation offset.
          This helps at low quantisation factors   particularly.

2006-05-16 12:19  asuraparaju

        * encoder/encmain.cpp: Print extra-information regarding encoder
          params used to encoding. E.g.  motion vector precision, transform
          depth etc.

2006-05-16 12:18  asuraparaju

        * libdirac_byteio/transform_byteio.cpp: Spec compliance: - Zero
          transform flag applies only to Intra frames.  - Read/write code
          blocks from/to bitstream if Default spatial partitioning is
          disabled. Throw error when non-default transform depth is
          specified but   default spatial partitioning is set.  - Replace
          Multiple quantisers flag with Code block mode enumerated type.

2006-05-16 12:18  asuraparaju

        * libdirac_common/common_types.h: New enumerated type to handle
          CodeBlockMode which replaces the binary Multiple quantisers flag.

2006-05-16 12:17  asuraparaju

        * libdirac_common/: common.cpp, common.h: Spec Compliance: New
          class CodeBlocks for handling code blocks.  In CodecParams class
          - change type of m_mv_precision to MVPrecisionType - change type
          of m_wlt_depth to unsigned - replace m_multi_quants flag with
          CodeBlockMode enumerated type.  - New member variable and member
          functions to handle CodeBlocks In QuantisersLists class - Add a
          new member variable m_max_qindex to set the max val of quantiser
          index that can be handled by the decoder.

2006-05-15 12:45  asuraparaju

        * libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: Fix bug in specifying number
          of contexts. The number should be 23 and not 22 as previously
          specified.

2006-05-15 12:43  asuraparaju

        * libdirac_common/: mv_codec.cpp, mv_codec.h: [Thomas's changes]
          Changed coding of MB split so that it's bitwise, with bitwise
          prediction.  This is more efficient and is consistent with coding
          prediction modes.

2006-05-15 12:43  asuraparaju

        * libdirac_common/common.h: [Thomas's changes] Changed coding of MB
          split so that it's bitwise, with bitwise prediction.  This is
          more efficient and is consistent with coding prediction modes.

          Changed quantisation to give 2 bits of accuracy to quantisation
          factors.  This improves performance in high-quality applications,
          and reduces large steps in quality.

2006-05-15 12:42  asuraparaju

        * libdirac_common/common.cpp, libdirac_encoder/quant_chooser.cpp:
          [Thomas's changes] Changed quantisation to give 2 bits of
          accuracy to quantisation factors.  This improves performance in
          high-quality applications, and reduces large steps in quality.

2006-05-15 12:42  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: [Thomas's
          changes] Changed quantisation to give 2 bits of accuracy to
          quantisation factors.  This improves performance in high-quality
          applications, and reduces large steps in quality.  Fixed bug with
          multiple code blocks changing m_cutoff_point repeatedly.

2006-05-04 09:45  tjdwave

        * libdirac_common/band_codec.cpp, libdirac_common/common.h,
          libdirac_common/mv_codec.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: Rationalised arithmetic
          coding contexts and tidied code. Coefficient coding now covers
          bins 1-4 individually for "follow/continue bits". There are also
          separate info contexts for the case where the parent is
          zero/non-zero.

2006-05-03 17:05  asuraparaju

        * doc/: browser_compatibility.html, contact.html,
          documentation.html, faq.html, getting_involved.html, index.html,
          licenses.html, overview.html, soc2006.html, soc2006_ideas.html,
          specification.html, todo.html: Include links and details of Dirac
          participation in Google's Summer of Code 2006 program.

2006-04-26 16:06  asuraparaju

        * doc/faq.html: Fixed a typo.

2006-04-26 15:59  asuraparaju

        * tests/samples.at: Set luma block size values depending on the
          preset value.

2006-04-21 14:59  dirac_dev

        * encoder/encmain.cpp: Prevents user from specifying more than 5
          wavlet transforms

2006-04-21 14:20  dirac_dev

        * encoder/encmain.cpp, libdirac_byteio/mvdata_byteio.cpp,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/common_types.h,
          libdirac_common/dirac_exception.h, libdirac_common/mot_comp.cpp,
          libdirac_common/video_format_defaults.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_motionest/me_mode_decn.cpp: Added in variable
          motion-vector precision. Can now be controlled from the
          command-line. Default is quarter pixel.

2006-04-21 10:23  asuraparaju

        * libdirac_common/band_codec.cpp, libdirac_common/common.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: Differential quantiser index
          is now coded using arithmetic signed multiplexed exp Golomb
          binarisation to conform with spec. Added contexts to list of
          contexts to support this in common.h.

2006-04-20 16:39  asuraparaju

        * libdirac_byteio/: byteio.cpp, byteio.h, displayparams_byteio.cpp,
          frame_byteio.cpp, mvdata_byteio.cpp, parseparams_byteio.cpp,
          parseunit_byteio.cpp, seqparams_byteio.cpp, subband_byteio.cpp,
          transform_byteio.cpp: Replaced exp-Golomb coding with interleaved
          exp-Golomb coding to conform with spec.  Fixed-length values
          (like access unit picture number, parser offset) are now written
          out in Big-Endian order to conform with spec. Renamed coding
          functions to reflect whether they are coding fixed length values
          or variable length values.

2006-04-20 11:45  asuraparaju

        * libdirac_byteio/Makefile.am: Missed this file in the previous
          commit. It is part of the major restructure to Dirac bytestream
          I/O.

2006-04-20 11:41  asuraparaju

        * Makefile.am, README, configure.ac, decoder/decmain.cpp,
          doc/documentation/code/api/dirac_api.doxygen,
          encoder/encmain.cpp,
          extras/dirac_dshow/src/diracsplitter/DiracSplitter.cpp,
          extras/dirac_dshow/src/diracsplitter/DiracSplitter.vcproj,
          extras/dirac_dshow/src/diracsplitter/DiracSplitterFile.cpp,
          extras/dirac_dshow/src/diracsplitter/stdafx.h,
          libdirac_byteio/accessunit_byteio.cpp,
          libdirac_byteio/accessunit_byteio.h, libdirac_byteio/byteio.cpp,
          libdirac_byteio/byteio.h, libdirac_byteio/component_byteio.cpp,
          libdirac_byteio/component_byteio.h,
          libdirac_byteio/dirac_byte_stats.cpp,
          libdirac_byteio/dirac_byte_stats.h,
          libdirac_byteio/dirac_byte_stream.cpp,
          libdirac_byteio/dirac_byte_stream.h,
          libdirac_byteio/displayparams_byteio.cpp,
          libdirac_byteio/displayparams_byteio.h,
          libdirac_byteio/endofsequence_byteio.cpp,
          libdirac_byteio/endofsequence_byteio.h,
          libdirac_byteio/frame_byteio.cpp, libdirac_byteio/frame_byteio.h,
          libdirac_byteio/mvdata_byteio.cpp,
          libdirac_byteio/mvdata_byteio.h,
          libdirac_byteio/parseparams_byteio.cpp,
          libdirac_byteio/parseparams_byteio.h,
          libdirac_byteio/parseunit_byteio.cpp,
          libdirac_byteio/parseunit_byteio.h,
          libdirac_byteio/seqparams_byteio.cpp,
          libdirac_byteio/seqparams_byteio.h,
          libdirac_byteio/subband_byteio.cpp,
          libdirac_byteio/subband_byteio.h,
          libdirac_byteio/transform_byteio.cpp,
          libdirac_byteio/transform_byteio.h, libdirac_common/Makefile.am,
          libdirac_common/arith_codec.cpp, libdirac_common/arith_codec.h,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/common_types.h,
          libdirac_common/dirac_exception.cpp,
          libdirac_common/dirac_exception.h, libdirac_common/dirac_types.h,
          libdirac_common/frame.cpp, libdirac_common/frame.h,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/mot_comp.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_common/pic_io.cpp, libdirac_common/pic_io.h,
          libdirac_common/video_format_defaults.cpp,
          libdirac_common/video_format_defaults.h,
          libdirac_common/wavelet_utils.cpp, libdirac_decoder/Makefile.am,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_cppparser.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/dirac_parser.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h, libdirac_encoder/Makefile.am,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quant_chooser.cpp,
          libdirac_encoder/quant_chooser.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp, tests/samples.at,
          unit_tests/frames_test.cpp, unit_tests/motion_comp_test.cpp,
          util/instrumentation/instrmain.cpp,
          util/instrumentation/process_sequence.cpp,
          util/instrumentation/libdirac_instrument/overlay.cpp,
          win32/VS2003/Makefile.am, win32/VS2003/dirac.sln,
          win32/VS2003/ConversionUtils/libconv_common/libconv_common.vcproj,
          win32/VS2003/DiracDecoder/DiracDecoder.vcproj,
          win32/VS2003/DiracEncoder/DiracEncoder.vcproj,
          win32/VS2003/EncodeDirac/EncodeDirac.vcproj,
          win32/VS2003/libdirac_byteio/libdirac_byteio.vcproj,
          win32/VS2003/libdirac_common/libdirac_common.vcproj: Major
          restructure of Input/Output classes in Dirac internals. New
          directory, libdirac_byteio contains classes to input from/output
          to a Dirac bistream.

          Dirac external API (both encoder and decoder) has changed. So the
          patches for MPlayer, FFmpeg, and the Dirac Directshow filter will
          no longer work with the CVS source. The external API is likely to
          change over the next few weeks.  Updated versions of the patches
          and Direcshow filter will be available with the next release of
          Dirac.

          NOTE: the bytestream has changed to largely conform to the latest
          Dirac spec.  More work needs to be done to conform fully to the
          Dirac definition document. So expect the CVS source and resulting
          bitstream to change frequently over the next few weeks.

2006-04-18 11:18  tjdwave

        * libdirac_common/arith_codec.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h, libdirac_common/common.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp: Changing binarisation for
          arithmetic coding, and associated contexts.  The specification
          will be modified accordingly.

          Binarisation for the magnitude values of wavelet coefficients,
          motion vector prediction residues and DC values has been changed
          from unary to interleaved exp-Golomb so that the number of
          symbols to be decoded in order to reconstruct a coefficient is
          reduced. Exp-Golomb binarisation takes a number N>=0 and codes it
          via the binary representation of N+1, 1bbbbbb. If there are K
          bits following the leading 1, the representation is K zeroes
          followed by the binary representation:

          00...01bbbbb Interleaved exp-Golomb is the same, except that the
          K lsbs are interleaved with the zeroes: 0b0b   0b1 so that a
          single decoding loop can be used. The zeroes here act as "follow
          bits" indicating that another bit is to be sent, with 1 as the
          terminator.

          Contexts for coding these symbols are selected for the follow
          bits and other bits ("information bits") separately. Compression
          performance is hardly affected, nor is speed performance in
          software, but hardware performance is greatly facilitated.

2006-04-12 16:06  tjdwave

        * libdirac_common/arith_codec.h: Changed while loops for decoding
          and encoding into fixed-size for-loops with break conditions.
          Although ugly, this provides safer code as loops will terminate
          if there's an error.

2006-04-11 12:23  asuraparaju

        * unit_tests/motion_comp_test.cpp: Set number of references in
          MvData constructor to fix compilation errors.

2006-04-10 11:13  tjdwave

        * libdirac_common/band_codec.cpp: Changed lookup table-based
          division to a straight division. This is slightly slower, but
          will scale to higher levels of wavelet decomposition.  Also
          eliminates bug with occasional wrap-around for lossless coding on
          some pictures. Making abs_val 64 bits would also work but could
          be equally slow on 32 bit architectures.

2006-03-20 12:54  asuraparaju

        * encoder/encmain.cpp, libdirac_encoder/dirac_encoder.cpp: Fixed
          bug in writing instrumentation data to output which always
          assumed that data for two references were available.

2006-03-17 18:04  timborer

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/pixel_match.cpp,
          util/instrumentation/process_sequence.cpp: Changed block mode
          coding so that residues for reference 2 are not generated when we
          are only using one reference.  THIS CHANGES THE BYTESTREAM This
          reduces the bit rate by a few bits, but the reason for doing it
          is becuase it makes the codec more logical.  Also modified
          BlockModePrediction so that it doesn't do a prediction for
          reference 2 when we are only using one reference.  Removed some
          unnecessary memory allocation in MvData constructor.  Removed a
          few warning messages and tidied up a bit.

2006-03-01 18:19  asuraparaju

        * libdirac_common/: arith_codec.cpp, arith_codec.h: Rationalised
          types used i.e. replaced all code_t, calc_t etc with unsigned
          int. Simplified the code by removing one addition and shift from
          DecodeSymbol.

2006-02-28 15:53  asuraparaju

        * libdirac_common/arith_codec.cpp: Fixed g++ warning when compiled
          in debug mode

2006-02-28 15:29  asuraparaju

        * libdirac_common/Makefile.am,
          win32/VS2003/libdirac_common/libdirac_common.vcproj: Added
          arith_codec.cpp to list of .cpp files

2006-02-28 15:25  asuraparaju

        * libdirac_common/: arith_codec.cpp, arith_codec.h: Refactored code
          to make implementation easier to understand. The code restructure
          modified the bitstream but older version of arith_codec can
          decode this new version and vice-versa.

2006-02-21 13:32  tjdwave

        * libdirac_common/arith_codec.h: Modified arithmetic coding engine
          for speed and spec conformance.  1. Changed context statistics so
          that maximum weight is 256 2. Changed look-up table so that
          inverse of weight is calculated to 16 instead of 31 bits.  3.
          Changed scaled count of zero m_prob0 so that it's 16 bits instead
          of 10

          Changes 1-3 mean that m_prob0 can be worked out using only 16 bit
          multiplies and no bitshift. This is more hardware friendly.

          4. Modified do .. while loop for encoding and decoding so that a
          more efficient test for MSB equality can be used, resulting in a
          speed-up 5. Changed the order of decoding so that bits are
          shifted in first and then the symbol is determined. This reduces
          unnecessary bit inputs and moves to a 'lazy' input mode 6.
          Changed the statistics update function so that m_prob0 is
          calculated for every update rather than every other. This speeds
          up the code and gives better compression performance.

2006-02-15 14:27  asuraparaju

        * tests/samples.at: Included  block variables so that tests can be
          run for different block sizes. Note that the block sizes must be
          changed manually before running the tests.

2006-02-15 14:26  asuraparaju

        * libdirac_motionest/: me_utils.cpp, me_utils_mmx.cpp,
          pixel_match.cpp: Padding related changes. Since there may no
          longer be an integer number of whole macroblocks and blocks in a
          paddied picture, made changes to ensure that we do not fall off
          the boundaries of the padded pictured during motion estimation.
          WARNING : This changes the bitstream

2006-02-15 14:24  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp.h, mot_comp_mmx.cpp,
          mot_comp_mmx.h: A linear function is used to calculate the OBMC
          weights instead of a raised cosine function to make it compliant
          with spec. Also motion compensation is performed only on true
          picture dimensions and not padded picture dimensions, WARNING :
          This changes the bitstream

2006-02-15 14:23  asuraparaju

        * libdirac_common/common.cpp: Modified CodecParams.SetBlockSizes
          function to be compliant with spec.  WARNING : This changes the
          bitstream

2006-02-15 14:21  asuraparaju

        * libdirac_common/common.h, libdirac_common/frame.cpp,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/seq_compress.cpp, unit_tests/frames_test.cpp,
          unit_tests/motion_comp_test.cpp: Currently a frame is padded so
          that it has an integer number of whole macro blocks and is also a
          multiple of 2^(wavelet transform depth). This has changed in the
          Dirac specification where a frame is padded so that its
          dimensions are a multiple of 2^(wavelet transform depth) only.
          Also the luma and the chroma components can be padded
          differently. E.g. the luma dimensions may be a perfect multiple
          of 2^(wavelet transform depth) so the luma component is not
          padded but the chroma component may need to be padded depending
          on the chroma format of the input.  To take care of this,
          FrameParams class has been modified to accept both padded chroma
          and padded luma dimensions.

          WARNING! This modifies the bitstream.

2006-02-14 12:48  tjdwave

        * libdirac_common/arith_codec.h: Changed count rescaling so that it
          occurs every time a bit is encoded/decoded.  This is to make
          compliant with spec, and also because doing it every other bit
          was giving no speed advantage.

          WARNING! This changes the bitstream.

2006-02-10 09:49  tjdwave

        * libdirac_common/common.cpp: Modified calculation of quantisation,
          inverse quantisation and offset values so as to conform to
          specification.  WARNING: this modifies the bitstream.

2006-02-09 13:58  tjdwave

        * libdirac_common/: motion.h, mv_codec.cpp: Removed the function
          for computing a mean of a vector of ints. Instead all means are
          of unsigned int values, and are calculated using unbiased
          arithmetic ie with an offset of N/2 for N values to ensure even
          rounding. This changes the mean used for predicting DC values in
          motion vector coding. As a result, the bitstream is also changed.

2006-01-06 15:56  tjdwave

        * libdirac_common/mv_codec.cpp: Changed refresh so that statistics
          are refreshed after m_reset_num macroblocks as intended, rather
          than m_reset_num+1.  WARNING! This changes the bitstream.

2006-01-06 15:22  asuraparaju

        * libdirac_motionest/me_utils.cpp: Fixed bug#1383890. Applied patch
          supplied in bug report.

2005-12-07 12:50  asuraparaju

        * doc/specification.html: Link to Dirac specification document

2005-12-07 11:34  asuraparaju

        * doc/: contact.html, documentation.html, faq.html,
          getting_involved.html, index.html, licenses.html, overview.html,
          template2.html, todo.html: Included a link to the Dirac
          Specification document.

2005-12-07 11:33  asuraparaju

        * doc/documentation/algorithm/algorithm/wlt_transform.xht: Fixed
          filter coefficients for 13,5 filter.

2005-12-05 12:44  asuraparaju

        * ChangeLog: [no log message]

2005-12-05 12:38  asuraparaju

        * NEWS: Updated with 0.5.4 release notes

2005-12-05 12:33  asuraparaju

        * extras/patches/: FFMpeg-20051205-dirac-0.5.x.patch,
          README_FFMpeg-20051205-dirac-0.5.x_patch: FFMpeg patch for cvs
          version dated 05-Dec-2005.

2005-12-05 12:32  asuraparaju

        * extras/patches/: README_FFMpeg-20050806-dirac-0.5.x_patch,
          README_ffmpeg-0.4.9-pre1-dirac-0.5.x_patch: Updated instruction
          for latest Dirac release

2005-12-05 12:26  asuraparaju

        * extras/patches/README_MPlayer-1.0pre7_dirac-0.5.x_patch: Updated
          instructions to use latest release of Dirac and MPlayer

2005-12-02 16:25  asuraparaju

        * libdirac_common/mot_comp_mmx.cpp: Fix bug with uninitialised
          memory reads when compiling in msys-g++ environment.

2005-12-02 10:16  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: Added Steve
          Bearcroft to list of contributors.

2005-12-01 14:34  asuraparaju

        * README: Changes to reflect the new/modified options of the
          command line encoder dirac_encoder.

2005-12-01 14:30  asuraparaju

        * AUTHORS: Updated contributor list.

2005-12-01 14:30  asuraparaju

        * configure.ac: Updated release id to 0.5.4

2005-12-01 14:29  asuraparaju

        * tests/: colourbars.at, samples.at: Changes due to modified
          dirac_encoder command line. Include the -local option to generate
          diagnostics and locally decoded data to use in comparison and
          instrumentation tests.

2005-12-01 14:27  asuraparaju

        * encoder/encmain.cpp: Generation of Diagnostics data and locally
          decoded output is now disabled by default. To enable this use the
          commandline option -local.

2005-12-01 14:26  asuraparaju

        * libdirac_common/upconvert_mmx.cpp: Mods to make
          Upconverter::DoUpconverter function more efficient

2005-12-01 14:25  asuraparaju

        * libdirac_common/wavelet_utils.h: New function
          VHFilter5_3::HorizSynth which is used only when MMX opts are
          enabled. This function is used to interleave horizontal synthesis
          with vertical synthesis to make the wavelet syntheis function
          slightly more efficient.

2005-12-01 14:22  asuraparaju

        * libdirac_common/: band_codec.cpp, band_codec.h: New function
          ClearBlock to set all values in block to 0 more efficiently.
          Applied BandCodec optimisation part of patch 1303281 which make
          DecodeVal function more efficient.

2005-12-01 14:12  asuraparaju

        * libdirac_common/wavelet_utils_mmx.cpp: Minor mods to optimise
          VHFilter5_3::Split further.

2005-12-01 14:10  asuraparaju

        * libdirac_common/mot_comp_mmx.cpp: Minor changes to ensure that
          uninitialised memory reads do not cause crashes when compiled
          using MS VC++. Note that the data read from unitialised memory is
          not being used but still causes problems on some platforms.

2005-12-01 14:06  asuraparaju

        * libdirac_common/mot_comp.cpp: Using calculated values of blocks
          per macro block row and blocks per sub-block row instead of
          hardcoded values.

2005-12-01 14:02  asuraparaju

        * util/encoder_gui/: README, diracdata.h, diracgui.cpp, diracgui.h,
          encodebox.cpp, encoder_gui.pro, filesbox.cpp, repthread.cpp,
          tables.h: Included option in GUI to disable the creation of
          diagnostics data file and locally decoded output. dirac_encoder
          need no longer be in the current working directory but in any
          directory in the PATH variable.

2005-11-15 15:35  asuraparaju

        * libdirac_common/arith_codec.h: Minor cosmetic difference as to
          how CODE_MSB and CODE_2ND_MSB are initialised to make their usage
          more obvious.

2005-11-15 15:33  asuraparaju

        * doc/Makefile.am: Fix problem with install target

2005-11-08 11:45  asuraparaju

        * libdirac_common/band_codec.cpp: Minor changes in DoWorkCode,
          DoWorkDecode and DecodeCoeffBlock functions in the way 2-D arrays
          are accessed which resulted in a slight decoding speed
          improvement.

2005-11-08 11:43  asuraparaju

        * libdirac_common/upconvert_mmx.cpp: Minor changes to DoUpConverter
          routine to give slight improvement in uoconversion speed.

2005-11-08 11:41  asuraparaju

        * libdirac_common/arrays.h: In Resize function in OneDArray class,
          dealloc and realloc data only if the new and old array sizes are
          different.

2005-11-08 11:40  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils_mmx.cpp:
          Optimised WaveletTransform::VHFilter5_3::Split using MMX
          instructions. Minor mods to WaveletTransform::VHFilter5_3::Synth
          function improve speed slightly.

2005-11-08 11:37  asuraparaju

        * libdirac_motionest/Makefile.am,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert_mmx.cpp,
          win32/VS2003/libdirac_motionest/libdirac_motionest.vcproj:
          Optimised DoDownConverter routine using MMX instructions

2005-11-08 11:34  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp.h, mot_comp_mmx.cpp:
          Modified motion compensation so that it take Macro-Block
          splitting mode into consideration when compensating a row of
          blocks. Depending on the macroblock split mode, 1,2 or 4 blocks
          of reference data are used to calculate the motion compensated
          data. This sped up the default quarter pixel block motion
          compensation routine by an average of 20-23% for a 2Mbps Dirac
          bitstream.

2005-11-08 11:26  asuraparaju

        * libdirac_common/: frame.cpp, frame.h, frame_buffer.cpp,
          frame_buffer.h: Changes to FrameBuffer handling. Deleting old
          frames and allocating new frames is quite expensive. So instead
          of deleting frames no longer required in the frame buffer, they
          are flagged "not in use". So the next time a new reference frame
          has to be inserted in the Frame buffer, the first frame "not in
          use" is used to store the new frame. An overall improvement of
          6-7 percent in decoding speed for a 2Mbps bitstream resulted.

2005-10-17 12:06  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: Fixed bug #1328565. Now
          ensuring that all locally decoded frames are available for
          output.

2005-10-11 14:02  tjdwave

        * libdirac_common/arith_codec.h: Incorporated Steve Bearcroft's
          speed-up patch, with some minor typographical changes for
          clarity.

2005-10-11 10:00  tjdwave

        * libdirac_motionest/block_match.cpp: Added patch 1309571 which
          fixes the quality degradation introduced in the motion estimation
          speed-ups.

2005-10-07 11:17  asuraparaju

        * libdirac_motionest/: me_utils.cpp, me_utils_mmx.cpp,
          me_utils_mmx.h: Applied MMX optimisations to modified ME
          routines. This is an initial version that improves Motion
          Estimation speed by 30% resulting in a 20% improvement in
          encoding speed overall. This is work in progress.

2005-09-27 14:44  dirac_dev

        * libdirac_encoder/dirac_encoder.h: Replaced boolean with int.
          C-compilers (eg. ffmpeg) complain about C++ constructs.

2005-09-27 14:08  tjdwave

        * libdirac_encoder/quality_monitor.cpp: Set the motion estimation
          factor to compensate for the default search precision being at
          1/4 pel (as this is the default precision) rather than 1/8th pel.

2005-09-27 14:07  tjdwave

        * libdirac_motionest/: motion_estimate.cpp, motion_estimate.h:
          Removed cut detection, which is now in the FrameCompressor class.
          Removed the kludge which scaled the motion vector precisions. All
          motion estimation is now at the selected precision.

2005-09-27 14:01  tjdwave

        * libdirac_motionest/: me_mode_decn.cpp, me_mode_decn.h: Use
          specific matching classes for different pixel accuracies. Reduced
          search ranges for increased speed.

2005-09-27 13:59  tjdwave

        * libdirac_motionest/me_subpel.cpp: Removed calculation of lambda
          map. Simplified class by using the specific subpixel refinement
          matching function.

2005-09-27 13:55  tjdwave

        * libdirac_motionest/: pixel_match.cpp, pixel_match.h: Search
          ranges restricted to improve motion estimation speed.

2005-09-27 13:52  tjdwave

        * libdirac_motionest/: block_match.cpp, block_match.h: Refactored
          the BlockMatcher class. There are now three functions for finding
          a best match - finding the pixel-accurate best match, refining
          this to sub-pixel accuracy, and also finding a best match from a
          list at sub-pixel level.  These matching functions contain
          shortcuts to speed up matching as follows.

          FindBestMatchPel: - The predictors are each searched first, and
          if their SAD values are small then the search ends.  - bailout
          functions are used for calculating matching costs for the
          remaining candidates

          RefineMatchSubpel: - The predictor from neighbouring (previously
          refined) vectors is tested first. If there's a small SAD, then
          the search ends - Pixel-accurate vectors are refined to half-pel
          vectors by searching the 4 closest half-pel positions (shown as
          X) first:  X XOX  X

          If one of these is better than the pixel-accurate value, then the
          two nearest values in the immediate neighbourhood of the
          pixel-accurate value are also searched, eg the Y values below:

          YXY XOX  X

          This two-stage procedure is followed again in refining to
          quarter- and eighth-pel.  - At each stage of refinement, if we're
          10% worse than the value derived for the predictor, we end the
          search.

          FindBestMatchSubpel: - bailout functions are used

2005-09-27 13:40  tjdwave

        * libdirac_motionest/: me_utils.cpp, me_utils.h: Reorganised
          classes for doing SAD calculations at pixel and sub-pixel
          accuracy. Distinct classes for half-, quarter- and eighth-pixel
          matching have been created. These are present also in 'bailout'
          form so that you can leave the calculation as soon as you know
          that you're not going to beat the best match so far.  These mods
          support speeding up motion estimation, and hence the encoder
          generally.

2005-09-27 12:25  asuraparaju

        * libdirac_encoder/dirac_encoder.cpp: Fixed bug# 1291478. Now
          ensuring that dirac_encoder_output returns ENC_STATE_BUFFER when
          data is not loaded into the encoder.

2005-09-27 12:21  asuraparaju

        *
          doc/documentation/code/programmers_guide/decoder_api_functions.htm:
          Bug fix: 1291481. Corrected return value in dirac_parse function
          prototype.

2005-09-27 10:21  tjdwave

        * libdirac_encoder/seq_compress.cpp: The quality measurement model
          can only be calculated correctly if reconstructed compressed
          video is available, which isn't the case if we're not doing local
          decoding. In this case, calculating and outputting these values
          is disabled.

2005-09-27 10:16  tjdwave

        * libdirac_encoder/: frame_compress.cpp, frame_compress.h: Moved
          the analysis of whether or not we have a cut into FrameCompressor
          class and out of motion estimation classes.

          Also, only do motion compensation on L2 frames if local decoding
          is required.  This is because, by definition, L2 frames can't be
          references and so can be left in a partially reconstructed state
          if local decoding isn't required, which improves encoding speed.

2005-09-27 10:12  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Added support for local
          decoding flag, so that local decoding can be avoided for speed.

2005-09-27 10:09  tjdwave

        * libdirac_encoder/comp_compress.cpp: Removed commented-out code.

2005-09-27 10:09  tjdwave

        * libdirac_encoder/comp_compress.cpp: Inverse wavelet transform is
          now only done for L2 frames if local decoding is required. This
          is because L2 frames are (by definition) not used for reference
          and can be left in a partially reconstructed state if local
          decoding isn't needed.

2005-09-27 09:54  tjdwave

        * libdirac_common/mot_comp.cpp: Introduced unbiased rounding into
          calculation of weighting matrices. This allows the subsequent
          rationalisation of the values to be avoided. Also, chroma scale
          factors applied to motion vectors have been replaced by shift
          factors, so that bitshifts can be used instead of divisions for
          greater efficiency.

2005-09-27 09:50  tjdwave

        * libdirac_common/: common.cpp, common.h: Added support for an
          encode params flag indicating whether we're doing local decoding.
          Local decoding can then be omitted for greater efficiency.

2005-09-27 09:44  tjdwave

        * decoder/decmain.cpp: Made timing info only output in verbose
          mode.

2005-09-27 09:43  tjdwave

        * encoder/encmain.cpp: Added timing data for encoding.

2005-09-27 09:40  tjdwave

        * libdirac_common/arith_codec.h: Simplified ArithCodec class so
          that probality intervals aren't used.

2005-09-07 15:29  tjdwave

        * util/encoder_gui/: COPYING, README, diracdata.h, diracgui.cpp,
          diracgui.h, encodebox.cpp, encoder_gui.pro, filesbox.cpp,
          main.cpp, presetbox.cpp, qualitybox.cpp, reportbox.cpp,
          repthread.cpp, repthread.h, tables.cpp, tables.h, videobox.cpp:
          Adding files for Dirac encoder GUI.

2005-09-07 10:41  tjdwave

        * doc/DiracSpecV0.1.doc: Version 0.1 superceded by version 0.9 now
          in CVS.

2005-09-07 10:39  tjdwave

        * doc/DiracSpec0.9.pdf: Added decoder semantics and revised
          bitstream structure.

2005-08-31 14:42  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/quality_monitor.cpp: Added support for lossless
          I-frame and long-GOP coding, with CLI option.

2005-08-23 11:52  asuraparaju

        * ChangeLog: [no log message]

2005-08-23 11:46  asuraparaju

        * NEWS: Added 0.5.3 release notes

2005-08-23 11:14  asuraparaju

        * doc/documentation.html: Having trouble creating a pdf document in
          which MathML is rendered correctly.  Hence a pdf version of the
          Algorithm document cannot be generated at the moment.  Removed
          broken link to Algorithm pdf until this problem can be fixed.

2005-08-22 13:51  asuraparaju

        * configure.ac: Update the help string for enable-mmx configure
          argument to make it clear that MMX opts are enabled by default.
          The user will have to explcitly specify --enable-mmmx=no or
          --disable-mmx to disable MMX opts.

2005-08-19 13:41  asuraparaju

        * extras/patches/: README_transcode-1.0.0_dirac-0.5.x_patch,
          transcode-1.0.0-dirac-0.5.x.patch: Dirac patch for
          transcode-1.0.0. This patch is not a standalone patch and will be
          effective only if the ffmpeg library it uses is built with the
          dirac patch applied.

2005-08-19 13:38  asuraparaju

        * extras/patches/README_MPlayer-1.0pre7_dirac-0.5.x_patch: Updated
          notes for dirac v0.5.3

2005-08-19 13:36  asuraparaju

        * extras/patches/: FFMpeg-20050806-dirac-0.5.x.patch,
          README_FFMpeg-20050806-dirac-0.5.x_patch: Dirac patch for ffmpeg
          cvs snapshot dated 06-Aug-2005. Note that this has been tested
          with CVS versions as late at 16-Aug-2006 but the CVS snapshots
          past 06-Aug-2005 are not available for download on the FFmpeg
          server.

2005-08-19 13:34  asuraparaju

        * extras/patches/README_transcode-0.6.14_dirac-0.5.x_patch: Updated
          for dirac v0.5.3

2005-08-19 13:33  asuraparaju

        * extras/patches/: README_ffmpeg-0.4.9-pre1-dirac-0.5.x_patch,
          ffmpeg-0.4.9-pre1-dirac-0.5.x.patch: Updated patch for
          dirac-0.5.3. Changed license to LGPL. Fixed bug in setting the
          quality factor where the quality factor lookup table was uint8_t
          instead of float which was causing the qf to be truncated to
          uint8_t.  dirac_decode_frame now correctly returns the number of
          bytes it consumed. This is a fix for bug 1246767.

2005-08-18 09:30  tjdwave

        * encoder/encmain.cpp: Clarified CLI error message.

2005-08-18 09:27  tjdwave

        * README: Refactored the encoding instructions so that they're much
          clearer.

2005-08-16 15:37  asuraparaju

        * libdirac_common/arith_codec.h: Removed DOS line-breaks.

2005-08-16 10:37  asuraparaju

        * doc/Makefile.am: Fix problem with install targer in main doc
          directory

2005-08-15 18:21  asuraparaju

        * doc/Makefile.am: Fixed bug where make was failing when built in a
          distribtion

2005-08-15 17:48  asuraparaju

        * doc/: Makefile.am,
          documentation/code/programmers_guide/Makefile.am: Ensured that
          all required files are installed correctly when using the install
          target of make.

2005-08-15 17:18  asuraparaju

        * doc/documentation/: Makefile.am, tools/diagnostics/Makefile.am:
          Changes related to documents directory restructure

2005-08-15 17:11  asuraparaju

        * configure.ac, doc/Makefile.am,
          doc/documentation/algorithm/Makefile.am,
          doc/documentation/algorithm/enhancements/Makefile.am,
          doc/documentation/algorithm/global_motion/Makefile.am,
          doc/documentation/algorithm/upconversion/Makefile.am,
          doc/documentation/tools/Makefile.am: Changes related to
          documentation tree restructure

2005-08-15 16:09  asuraparaju

        * doc/: Makefile.am, documentation/algorithm/Makefile.am,
          documentation/algorithm/algorithm/Makefile.am,
          documentation/code/Makefile.am,
          documentation/code/api/Makefile.am,
          documentation/code/api/dirac_api.doxygen,
          documentation/code/api/dirac_api.doxygen.in,
          documentation/code/api/dirac_api_foot.html,
          documentation/code/api/dirac_api_head.html,
          documentation/code/programmers_guide/Makefile.am: Changes related
          to documentation tree restructure.

2005-08-15 16:03  asuraparaju

        * doc/api/: Makefile.am, dirac_api.doxygen, dirac_api.doxygen.in,
          dirac_api_foot.html, dirac_api_head.html,
          libdirac_encoder_api.doxygen, libdirac_encoder_api_foot.html,
          libdirac_encoder_api_head.html: Removing old files as part of
          Documentation directory restructure. API docs are now generated
          in doc/documentation/code/api/html

2005-08-15 15:56  asuraparaju

        * doc/algorithm/: Makefile.am, algorithm.htm, block_data.htm,
          const_qual.htm, intro.htm, mb_structs.htm, mot_est.htm,
          mot_est_and_comp.htm, mv_coding_arch.htm, mv_data_coding.htm,
          mv_entropy_code.htm, olb_mc.htm, overall_arch.htm,
          quantisation.htm, rdo.htm, rdo_mot_est.htm, subband_rdo.htm,
          temporal_prediction_structures.htm, transform_coding.htm,
          transform_coding_arch.htm, var_size.htm, wlt_transform.htm,
          figs/DC.jpg, figs/DCSAD.jpg, figs/braces.jpg, figs/d.jpg,
          figs/eqA.jpg, figs/eqB.jpg, figs/eqC.jpg, figs/eqD.jpg,
          figs/eqE.jpg, figs/eqF.jpg, figs/eqG.jpg, figs/eqH.jpg,
          figs/eqI.jpg, figs/eqJ.jpg, figs/fig1.jpg, figs/fig10.jpg,
          figs/fig12.jpg, figs/fig13.jpg, figs/fig14.jpg, figs/fig15.jpg,
          figs/fig16.jpg, figs/fig17.jpg, figs/fig18.jpg, figs/fig19.jpg,
          figs/fig2.jpg, figs/fig20.jpg, figs/fig21.jpg, figs/fig22.jpg,
          figs/fig23.jpg, figs/fig24.jpg, figs/fig26.jpg, figs/fig27.jpg,
          figs/fig3.jpg, figs/fig4.jpg, figs/fig5.jpg, figs/fig6.jpg,
          figs/fig7.bmp, figs/fig7.jpg, figs/fig8.jpg, figs/fig9.jpg,
          figs/fp.jpg, figs/m.jpg, figs/nhood.jpg, figs/nhoodresidue.jpg,
          figs/p.jpg, figs/p2.jpg, figs/t.jpg, figs/two.jpg, figs/var.jpg,
          figs/vtilda.jpg, figs/vw.jpg, mv_data_pred.htm, parent_child.htm,
          toc.htm, wlt_coeff_coding.htm: Removing old files as part of
          Documentation directory restructure. Algorithm documentation can
          now be found in doc/documentation/algorithm/algorithm

2005-08-15 15:52  asuraparaju

        * doc/programmers/: Makefile.am, programmers_guide.aux,
          programmers_guide.tex: Removed old files as part of document
          directory restructure

2005-08-15 12:26  asuraparaju

        * doc/documentation/algorithm/enhancements/: 050var_wlt.htm,
          130alt_bin.htm: Checking in missed doc files missed out in
          earlier website docs check in.

2005-08-15 12:22  asuraparaju

        * doc/: browser_compatibility.html, contact.html,
          documentation.html, faq.html, getting_involved.html, index.html,
          licenses.html, overview.html, styles.css, template.html,
          template2.html, todo.html,
          documentation/algorithm/algorithm/block_data.htm,
          documentation/algorithm/algorithm/index.htm,
          documentation/algorithm/algorithm/intra_pred.htm,
          documentation/algorithm/algorithm/intro.htm,
          documentation/algorithm/algorithm/mb_structs.htm,
          documentation/algorithm/algorithm/mot_est.htm,
          documentation/algorithm/algorithm/mot_est_and_comp.htm,
          documentation/algorithm/algorithm/mv_coding_arch.htm,
          documentation/algorithm/algorithm/mv_data_coding.htm,
          documentation/algorithm/algorithm/mv_data_pred.htm,
          documentation/algorithm/algorithm/mv_entropy_code.htm,
          documentation/algorithm/algorithm/olb_mc.xht,
          documentation/algorithm/algorithm/overall_arch.htm,
          documentation/algorithm/algorithm/overall_arch_svg.htm,
          documentation/algorithm/algorithm/parent_child.htm,
          documentation/algorithm/algorithm/quantisation.xht,
          documentation/algorithm/algorithm/rdo.htm,
          documentation/algorithm/algorithm/rdo_mot_est.xht,
          documentation/algorithm/algorithm/subband_rdo.xht,
          documentation/algorithm/algorithm/temporal_prediction_structures.htm,
          documentation/algorithm/algorithm/toc.htm,
          documentation/algorithm/algorithm/transform_coding.htm,
          documentation/algorithm/algorithm/transform_coding_arch.htm,
          documentation/algorithm/algorithm/var_size.htm,
          documentation/algorithm/algorithm/wlt_coeff_coding.xht,
          documentation/algorithm/algorithm/wlt_transform.xht,
          documentation/algorithm/algorithm/figs/fig1.dia,
          documentation/algorithm/algorithm/figs/fig1.gif,
          documentation/algorithm/algorithm/figs/fig1.jpg,
          documentation/algorithm/algorithm/figs/fig1.png,
          documentation/algorithm/algorithm/figs/fig1.svg,
          documentation/algorithm/algorithm/figs/fig10.dia,
          documentation/algorithm/algorithm/figs/fig10.gif,
          documentation/algorithm/algorithm/figs/fig10.jpg,
          documentation/algorithm/algorithm/figs/fig10.png,
          documentation/algorithm/algorithm/figs/fig10.svg,
          documentation/algorithm/algorithm/figs/fig12.dia,
          documentation/algorithm/algorithm/figs/fig12.gif,
          documentation/algorithm/algorithm/figs/fig12.jpg,
          documentation/algorithm/algorithm/figs/fig12.png,
          documentation/algorithm/algorithm/figs/fig12.svg,
          documentation/algorithm/algorithm/figs/fig15.dia,
          documentation/algorithm/algorithm/figs/fig15.gif,
          documentation/algorithm/algorithm/figs/fig15.jpg,
          documentation/algorithm/algorithm/figs/fig15.png,
          documentation/algorithm/algorithm/figs/fig15.svg,
          documentation/algorithm/algorithm/figs/fig16.dia,
          documentation/algorithm/algorithm/figs/fig16.gif,
          documentation/algorithm/algorithm/figs/fig16.jpg,
          documentation/algorithm/algorithm/figs/fig16.png,
          documentation/algorithm/algorithm/figs/fig16.svg,
          documentation/algorithm/algorithm/figs/fig17.dia,
          documentation/algorithm/algorithm/figs/fig17.gif,
          documentation/algorithm/algorithm/figs/fig17.jpg,
          documentation/algorithm/algorithm/figs/fig17.png,
          documentation/algorithm/algorithm/figs/fig17.svg,
          documentation/algorithm/algorithm/figs/fig18.dia,
          documentation/algorithm/algorithm/figs/fig18.gif,
          documentation/algorithm/algorithm/figs/fig18.jpg,
          documentation/algorithm/algorithm/figs/fig18.png,
          documentation/algorithm/algorithm/figs/fig18.svg,
          documentation/algorithm/algorithm/figs/fig19.cgm,
          documentation/algorithm/algorithm/figs/fig19.dia,
          documentation/algorithm/algorithm/figs/fig19.gif,
          documentation/algorithm/algorithm/figs/fig19.jpg,
          documentation/algorithm/algorithm/figs/fig19.png,
          documentation/algorithm/algorithm/figs/fig19.svg,
          documentation/algorithm/algorithm/figs/fig19.wmf,
          documentation/algorithm/algorithm/figs/fig1_100.svg,
          documentation/algorithm/algorithm/figs/fig1_10000.dia,
          documentation/algorithm/algorithm/figs/fig1_10000.svg,
          documentation/algorithm/algorithm/figs/fig1_mod.svg,
          documentation/algorithm/algorithm/figs/fig1_px.svg,
          documentation/algorithm/algorithm/figs/fig2.dia,
          documentation/algorithm/algorithm/figs/fig2.gif,
          documentation/algorithm/algorithm/figs/fig2.jpg,
          documentation/algorithm/algorithm/figs/fig2.png,
          documentation/algorithm/algorithm/figs/fig2.svg,
          documentation/algorithm/algorithm/figs/fig20.dia,
          documentation/algorithm/algorithm/figs/fig20.gif,
          documentation/algorithm/algorithm/figs/fig20.jpg,
          documentation/algorithm/algorithm/figs/fig20.png,
          documentation/algorithm/algorithm/figs/fig20.svg,
          documentation/algorithm/algorithm/figs/fig21.dia,
          documentation/algorithm/algorithm/figs/fig21.gif,
          documentation/algorithm/algorithm/figs/fig21.jpg,
          documentation/algorithm/algorithm/figs/fig21.png,
          documentation/algorithm/algorithm/figs/fig21.svg,
          documentation/algorithm/algorithm/figs/fig22.dia,
          documentation/algorithm/algorithm/figs/fig22.gif,
          documentation/algorithm/algorithm/figs/fig22.jpg,
          documentation/algorithm/algorithm/figs/fig22.png,
          documentation/algorithm/algorithm/figs/fig22.svg,
          documentation/algorithm/algorithm/figs/fig23.dia,
          documentation/algorithm/algorithm/figs/fig23.gif,
          documentation/algorithm/algorithm/figs/fig23.jpg,
          documentation/algorithm/algorithm/figs/fig23.png,
          documentation/algorithm/algorithm/figs/fig23.svg,
          documentation/algorithm/algorithm/figs/fig2_webdraw.svg,
          documentation/algorithm/algorithm/figs/fig3.bmp,
          documentation/algorithm/algorithm/figs/fig3.dia,
          documentation/algorithm/algorithm/figs/fig3.gif,
          documentation/algorithm/algorithm/figs/fig3.jpg,
          documentation/algorithm/algorithm/figs/fig3.png,
          documentation/algorithm/algorithm/figs/fig3.svg,
          documentation/algorithm/algorithm/figs/fig3_a.svg,
          documentation/algorithm/algorithm/figs/fig4.dia,
          documentation/algorithm/algorithm/figs/fig4.gif,
          documentation/algorithm/algorithm/figs/fig4.jpg,
          documentation/algorithm/algorithm/figs/fig4.png,
          documentation/algorithm/algorithm/figs/fig4.svg,
          documentation/algorithm/algorithm/figs/fig4_dia.svg,
          documentation/algorithm/algorithm/figs/fig5.dia,
          documentation/algorithm/algorithm/figs/fig5.gif,
          documentation/algorithm/algorithm/figs/fig5.jpg,
          documentation/algorithm/algorithm/figs/fig5.png,
          documentation/algorithm/algorithm/figs/fig5.svg,
          documentation/algorithm/algorithm/figs/fig6.dia,
          documentation/algorithm/algorithm/figs/fig6.gif,
          documentation/algorithm/algorithm/figs/fig6.jpg,
          documentation/algorithm/algorithm/figs/fig6.png,
          documentation/algorithm/algorithm/figs/fig6.svg,
          documentation/algorithm/algorithm/figs/fig7.jpg,
          documentation/algorithm/algorithm/figs/fig8.dia,
          documentation/algorithm/algorithm/figs/fig8.gif,
          documentation/algorithm/algorithm/figs/fig8.jpg,
          documentation/algorithm/algorithm/figs/fig8.png,
          documentation/algorithm/algorithm/figs/fig8.svg,
          documentation/algorithm/algorithm/figs/fig9.dia,
          documentation/algorithm/algorithm/figs/fig9.gif,
          documentation/algorithm/algorithm/figs/fig9.jpg,
          documentation/algorithm/algorithm/figs/fig9.png,
          documentation/algorithm/algorithm/figs/fig9.svg,
          documentation/algorithm/enhancements/010version_num.htm,
          documentation/algorithm/enhancements/020precision.htm,
          documentation/algorithm/enhancements/030index_tables.htm,
          documentation/algorithm/enhancements/040bit_stream.htm,
          documentation/algorithm/enhancements/060var_blocks.htm,
          documentation/algorithm/enhancements/070var_mv_precn.htm,
          documentation/algorithm/enhancements/080multi_ref.htm,
          documentation/algorithm/enhancements/090nl_quant.htm,
          documentation/algorithm/enhancements/100multi_quant.htm,
          documentation/algorithm/enhancements/110spatially_var_quant.htm,
          documentation/algorithm/enhancements/120wt_ref.htm,
          documentation/algorithm/enhancements/140pred_ctx.htm,
          documentation/algorithm/enhancements/150ctx_update.htm,
          documentation/algorithm/enhancements/160intra_ctxs.htm,
          documentation/algorithm/enhancements/170global_motion.htm,
          documentation/algorithm/enhancements/180skipped.htm,
          documentation/algorithm/enhancements/190mv_trace.htm,
          documentation/algorithm/enhancements/200interlace.htm,
          documentation/algorithm/enhancements/index.htm,
          documentation/algorithm/enhancements/toc.htm,
          documentation/algorithm/global_motion/affine.htm,
          documentation/algorithm/global_motion/code.htm,
          documentation/algorithm/global_motion/index.htm,
          documentation/algorithm/global_motion/intro.htm,
          documentation/algorithm/global_motion/optimising.htm,
          documentation/algorithm/global_motion/projective.htm,
          documentation/algorithm/global_motion/projective_2.htm,
          documentation/algorithm/global_motion/toc.htm,
          documentation/algorithm/global_motion/images/abc.jpg,
          documentation/algorithm/global_motion/images/affine_1.jpg,
          documentation/algorithm/global_motion/images/affine_2.jpg,
          documentation/algorithm/global_motion/images/affine_3.jpg,
          documentation/algorithm/global_motion/images/affine_4.jpg,
          documentation/algorithm/global_motion/images/affine_5.jpg,
          documentation/algorithm/global_motion/images/affine_v_error.jpg,
          documentation/algorithm/global_motion/images/arrow_up.gif,
          documentation/algorithm/global_motion/images/code_1.jpg,
          documentation/algorithm/global_motion/images/code_2.jpg,
          documentation/algorithm/global_motion/images/code_3.jpg,
          documentation/algorithm/global_motion/images/code_4.jpg,
          documentation/algorithm/global_motion/images/next.gif,
          documentation/algorithm/global_motion/images/optimising_1.jpg,
          documentation/algorithm/global_motion/images/optimising_2.jpg,
          documentation/algorithm/global_motion/images/optimising_3.jpg,
          documentation/algorithm/global_motion/images/optimising_4.jpg,
          documentation/algorithm/global_motion/images/optimising_5.jpg,
          documentation/algorithm/global_motion/images/optimising_fi.jpg,
          documentation/algorithm/global_motion/images/prev.gif,
          documentation/algorithm/global_motion/images/projective_1.jpg,
          documentation/algorithm/global_motion/images/projective_10.jpg,
          documentation/algorithm/global_motion/images/projective_11.jpg,
          documentation/algorithm/global_motion/images/projective_2.jpg,
          documentation/algorithm/global_motion/images/projective_3.jpg,
          documentation/algorithm/global_motion/images/projective_4.jpg,
          documentation/algorithm/global_motion/images/projective_5.jpg,
          documentation/algorithm/global_motion/images/projective_6.jpg,
          documentation/algorithm/global_motion/images/projective_7.jpg,
          documentation/algorithm/global_motion/images/projective_8.jpg,
          documentation/algorithm/global_motion/images/projective_9.jpg,
          documentation/algorithm/global_motion/images/projective_e.jpg,
          documentation/algorithm/global_motion/images/projective_e_2.jpg,
          documentation/algorithm/global_motion/images/projective_ec.jpg,
          documentation/algorithm/global_motion/images/projective_m_1.jpg,
          documentation/algorithm/global_motion/images/projective_w.jpg,
          documentation/algorithm/global_motion/images/toc.gif,
          documentation/algorithm/upconversion/downconv.htm,
          documentation/algorithm/upconversion/downconv_code.htm,
          documentation/algorithm/upconversion/downconv_filt.htm,
          documentation/algorithm/upconversion/index.htm,
          documentation/algorithm/upconversion/intro.htm,
          documentation/algorithm/upconversion/results.htm,
          documentation/algorithm/upconversion/results_down.htm,
          documentation/algorithm/upconversion/results_up.htm,
          documentation/algorithm/upconversion/toc.htm,
          documentation/algorithm/upconversion/upconv.htm,
          documentation/algorithm/upconversion/upconv_basic.htm,
          documentation/algorithm/upconversion/upconv_filt.htm,
          documentation/algorithm/upconversion/upconv_opt.htm,
          documentation/algorithm/upconversion/upconv_opt_arith.htm,
          documentation/algorithm/upconversion/upconv_opt_io.htm,
          documentation/algorithm/upconversion/upconv_opt_other.htm,
          documentation/algorithm/upconversion/images/image1.jpg,
          documentation/algorithm/upconversion/images/image2.jpg,
          documentation/algorithm/upconversion/images/image3.jpg,
          documentation/algorithm/upconversion/images/image4.jpg,
          documentation/algorithm/upconversion/images/image5.jpg,
          documentation/algorithm/upconversion/images/image6.jpg,
          documentation/algorithm/upconversion/images/next.gif,
          documentation/algorithm/upconversion/images/prev.gif,
          documentation/algorithm/upconversion/images/toc.gif,
          documentation/code/programmers_guide/common_data_structs.htm,
          documentation/code/programmers_guide/decoder_api.htm,
          documentation/code/programmers_guide/decoder_api_example.htm,
          documentation/code/programmers_guide/decoder_api_functions.htm,
          documentation/code/programmers_guide/decoder_api_overview.htm,
          documentation/code/programmers_guide/decoder_api_reference.htm,
          documentation/code/programmers_guide/decoder_data_structs.htm,
          documentation/code/programmers_guide/decoding.htm,
          documentation/code/programmers_guide/encoder_api.htm,
          documentation/code/programmers_guide/encoder_api_example.htm,
          documentation/code/programmers_guide/encoder_api_functions.htm,
          documentation/code/programmers_guide/encoder_api_overview.htm,
          documentation/code/programmers_guide/encoder_api_reference.htm,
          documentation/code/programmers_guide/encoder_data_structs.htm,
          documentation/code/programmers_guide/encoding.htm,
          documentation/code/programmers_guide/index.htm,
          documentation/code/programmers_guide/input_formats.htm,
          documentation/code/programmers_guide/intro.htm,
          documentation/code/programmers_guide/key.htm,
          documentation/code/programmers_guide/overview.htm,
          documentation/code/programmers_guide/software.htm,
          documentation/code/programmers_guide/toc.htm,
          documentation/code/programmers_guide/images/arrow_right.gif,
          documentation/code/programmers_guide/images/arrow_up.gif,
          documentation/code/programmers_guide/images/image1.jpg,
          documentation/code/programmers_guide/images/image2.jpg,
          documentation/code/programmers_guide/images/image3.jpg,
          documentation/code/programmers_guide/images/next.gif,
          documentation/code/programmers_guide/images/prev.gif,
          documentation/code/programmers_guide/images/toc.gif,
          documentation/publications/dirac-handout-lude-04-2004.pdf,
          documentation/support/test.html,
          documentation/tools/diagnostics/index.htm,
          documentation/tools/diagnostics/intro.htm,
          documentation/tools/diagnostics/operation.htm,
          documentation/tools/diagnostics/operation_buffer.htm,
          documentation/tools/diagnostics/operation_code.htm,
          documentation/tools/diagnostics/operation_des.htm,
          documentation/tools/diagnostics/operation_trans.htm,
          documentation/tools/diagnostics/over.htm,
          documentation/tools/diagnostics/over_diag.htm,
          documentation/tools/diagnostics/over_intr.htm,
          documentation/tools/diagnostics/over_oper.htm,
          documentation/tools/diagnostics/overlay.htm,
          documentation/tools/diagnostics/overlay_gmv.htm,
          documentation/tools/diagnostics/overlay_mv.htm,
          documentation/tools/diagnostics/overlay_mv_arr.htm,
          documentation/tools/diagnostics/overlay_mv_clr.htm,
          documentation/tools/diagnostics/overlay_pred.htm,
          documentation/tools/diagnostics/overlay_sad.htm,
          documentation/tools/diagnostics/overlay_split.htm,
          documentation/tools/diagnostics/toc.htm,
          documentation/tools/diagnostics/images/image1.jpg,
          documentation/tools/diagnostics/images/image2.jpg,
          documentation/tools/diagnostics/images/image3.jpg,
          documentation/tools/diagnostics/images/image4.jpg,
          documentation/tools/diagnostics/images/image5.jpg,
          documentation/tools/diagnostics/images/image6.jpg,
          documentation/tools/diagnostics/images/image7.jpg,
          documentation/tools/diagnostics/images/image8.jpg,
          documentation/tools/diagnostics/images/next.gif,
          documentation/tools/diagnostics/images/prev.gif,
          documentation/tools/diagnostics/images/toc.gif,
          images/arrow_right.gif, images/arrow_right_indent.gif,
          images/arrow_up.gif, images/black_pixel.jpg,
          images/dirac_banner.jpg, images/icon_html.gif,
          images/icon_pdf.gif, images/icon_txt.gif, images/icon_zip.gif:
          Committing website documentation to CVS

2005-08-15 11:24  asuraparaju

        * doc/faq.htm: Removing unwanted files in doc restructure

2005-08-15 08:34  tjdwave

        * libdirac_common/arith_codec.h: Added comment explaining look-up
          table operation.

2005-08-12 11:58  asuraparaju

        * configure.ac: Include an extra flag to suppress warnings when
          compiling in debug mode using icc.

2005-08-12 11:57  asuraparaju

        * README, README.developers: MMX optimisations are enabled by
          default. Provided instructions as to how to disable it.

2005-08-12 10:26  tjdwave

        * libdirac_common/motion.cpp: Reinstated transition detection code.
          This means that mode decision is kinder when a transition in the
          motion vector field is detected, giving better quality in motion
          transition areas.

2005-08-11 11:44  tjdwave

        * libdirac_common/arith_codec.h: Added Pete Bleackley's code to use
          a look-up table for division.

2005-08-11 08:21  tjdwave

        * libdirac_common/common.cpp: Added a warning when impossible block
          parameters are being used, and the encoder changes them.

2005-08-10 17:50  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils_mmx.cpp:
          Optimised 5_3 wavelet synthesis function, VHFilter5_3::Synth,
          using MMX instructions resulting in  6 percent speed improvement
          in decoding SD.

2005-08-10 17:48  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fix g++ warning about unused
          variable recode.

2005-08-10 17:47  asuraparaju

        * encoder/encmain.cpp: Print error message and exit if input and
          output file names are the same.  Changed back cif preset option
          to uppercase. Sequence and encoder params currently being used
          are displayed on standard out before actual coding starts.

2005-08-10 17:45  asuraparaju

        * configure.ac: MMX optimisations are enabled by default. Use
          --disable-mmx to explicitly disable them.

2005-08-10 09:13  tjdwave

        * README: Added modified instructions for -qf and advice about
          -width and -height.

2005-08-10 09:06  tjdwave

        * libdirac_motionest/block_match.cpp: Changed motion vector bitrate
          measure so that transitions from foreground to background and
          vice-versa are not penalised.

2005-08-10 09:04  tjdwave

        * libdirac_encoder/seq_compress.cpp: Removed recoding: superfluous
          now there is no CQ coding.

2005-08-10 09:02  tjdwave

        * libdirac_encoder/: quality_monitor.cpp, quality_monitor.h:
          Removed constant quality encoding control mechanism, because it
          worked too poorly for varied sequences. Instead, QualityMonitor
          just monitors quality and encoder control reverts to constant
          Lagrangian parameters.

          The magic numbers chosen may not work for all sequences or all
          video standards but will do for the moment.

2005-08-10 08:57  tjdwave

        * libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp: Changed default wavelet
          filters to fast filters APPROX97 and FIVETHREE.  Wavelet filter
          type is now signalled in the frame header so that changing these
          filters just changes the encoder. (This is now consistent with
          the spec).

2005-08-10 08:50  tjdwave

        * libdirac_common/: motion.cpp, motion.h: Fixed bug with way median
          is calculated. Removed large inline functions from .h and placed
          in .cpp for clarity.

2005-08-10 08:48  tjdwave

        * libdirac_common/mot_comp.cpp: Minor tidy of the way that
          weighting matrices are computed.

2005-08-10 08:44  tjdwave

        * libdirac_common/: common.cpp, common.h: Removed recode parameter.
          Added a CodecParams parameter for the wavelet filter being used,
          to support signalling this in the bitstream, rather than
          selecting by frame type. (This is in the spec).

2005-08-10 08:42  tjdwave

        * libdirac_common/: bit_manager.cpp, bit_manager.h: Added support
          for finding out the current size of bit buffers. This will
          support future CBR implementations and calculations of bit rate
          on the fly.

2005-08-10 08:40  tjdwave

        * libdirac_encoder/: dirac_encoder.cpp, dirac_encoder.h: Removed
          recode option. Set block parameters for HD720 the same as for SD
          to get around bug 1245129.  Need to fix padding and edge issues
          to fully resolve this bug.

2005-08-10 08:27  tjdwave

        * encoder/encmain.cpp: Added feature to print out help if there's
          an unrecognised/unparsed option.  Removed recode feature.

2005-08-01 17:14  asuraparaju

        * libdirac_decoder/dirac_parser.cpp: Speed up set_component
          function using MMX optimisation.

2005-08-01 17:14  asuraparaju

        * libdirac_common/arrays.h: In TwoDArray<T>::Resize, free and
          reallocate data only if the new dimensions differ from the old
          one.

2005-08-01 17:12  asuraparaju

        * win32/VS2003/:
          DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          libdirac_common/libdirac_common.vcproj: Define HAVE_MMX macro for
          mmx enabled targets.

2005-08-01 17:11  asuraparaju

        * util/instrumentation/process_sequence.cpp: Fix uninitialised
          memory read bug reported by Valgrind on reaching end of sequence.

2005-08-01 17:10  asuraparaju

        * unit_tests/: motion_comp_test.cpp, motion_comp_test.h: Test all
          MV precision values - from pixel to an eighth of a pixel.

2005-08-01 17:10  asuraparaju

        * libdirac_common/wavelet_utils_mmx.cpp: Reimplement
          VHFilterApprox9_7::Synth and VHFilter13_5::Synth using MMX
          optimisation.

2005-08-01 17:09  asuraparaju

        * libdirac_common/upconvert_mmx.cpp: Reimplemented
          UpConverter::DoUpConverter function using MMX optimisation.

2005-08-01 17:07  asuraparaju

        * libdirac_common/: mot_comp_mmx.cpp, mot_comp_mmx.h:
          Implementation of QuarterPixel::CompensateBlock function using
          MMX optimisation.

2005-08-01 17:06  asuraparaju

        * libdirac_common/wavelet_utils.cpp: MMX version of Wavelet
          sythesis functions are used if MMX is enabled.

2005-08-01 17:05  asuraparaju

        * libdirac_common/upconvert.cpp: MMX version of DoUpConverter is
          used if MMX is enabled.

2005-08-01 17:04  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp.h: Modified the block
          weights to be of type short to make efficient use of MMX
          instructions. Modified CompensateComponente to make more
          efficient use of data in cache. MMX versions of CompensateBlock
          are used if MMX is enabled.

2005-08-01 17:04  asuraparaju

        * libdirac_common/Makefile.am: Include new mmx optimisation source
          files and headers.

2005-07-26 10:39  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Reduced chroma weighting
          factors in order to increase chroma fidelity - chroma bit rates
          should increase from about 5% of total for 420 to 7.5% of total.
          Changed default block separation for HD720 preset to remove block
          edge overlaps at the top of the screen. This may be returned to
          the old settings when we know why they caused the problem.

2005-07-25 18:01  mservais

        * libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_motionest/global_motion.cpp,
          libdirac_motionest/global_motion.h,
          libdirac_motionest/me_motion_type_decn.cpp,
          libdirac_motionest/me_motion_type_decn.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp: Minor bug fixes and added
          some extra comments

2005-07-22 18:09  asuraparaju

        * configure.ac: updated revision to 0.5.3

2005-07-22 18:09  asuraparaju

        * libdirac_common/bit_manager.h: Updated bitstream version to 0.5
          since the bitstream is no longer compatible with dirac-0.5.2

2005-07-22 12:59  asuraparaju

        * configure.ac: Include macro AC_SYS_LARGEFILE to overcome the 2GB
          i/o file limit.  Fix for bug #1212581.

2005-07-21 09:11  tjdwave

        * encoder/encmain.cpp: Made presets non-case-sensitive.

2005-07-20 10:29  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Fixed bug where block
          parameters were being set incorrectly.

2005-07-20 09:43  tjdwave

        * README: Added text about recode CLI option.

2005-07-19 16:39  tjdwave

        * encoder/encmain.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/dirac_encoder.h,
          libdirac_encoder/seq_compress.cpp: Added -recode parameter. If
          -recode [n] is present, then the encoder will recode up to n
          times (ie will encoder up to n+1 times).

2005-07-19 15:17  tjdwave

        * libdirac_common/mv_codec.cpp,
          libdirac_motionest/me_mode_decn.cpp: Fixed bug 1240709. Common
          mode is now used to reduce encoding of prediction modes. Common
          mode was also being set incorrectly in the motion estimation
          process, which caused divergence between the encoder and decoder
          values.  Since common mode wasn't used, this bug was masked
          before. Both now fixed.

2005-07-08 10:26  tjdwave

        * libdirac_common/: upconvert.cpp, upconvert.h: Incorporated patch
          1211899. This tidies up the code and makes it confirm to dirac
          coding conventions, and also uses a smaller filter. This commit
          differs from the patch in that the filter is not reduced to 6
          taps but is reducted to 10 taps instead.  In the future, variable
          filter coefficients may be supported via templated polymorphism.

2005-06-22 17:52  mservais

        * libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_motionest/filter_weighted_local.cpp,
          libdirac_motionest/global_motion.cpp,
          libdirac_motionest/global_motion.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_motion_type_decn.cpp,
          libdirac_motionest/me_motion_type_decn.h,
          libdirac_motionest/model_affine.cpp,
          libdirac_motionest/model_affine.h,
          libdirac_motionest/model_projective.cpp,
          libdirac_motionest/model_projective.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp: When using global motion (but
          not exclusively global motion), the global motion decisions can
          now be flagged either per Prediction Unit or per Macro-Block.

          Also, the use of a Common Mode for each Macro-Block is now
          possible. (This had not been fully implemented before.)

2005-06-10 15:15  tjdwave

        * libdirac_encoder/quality_monitor.cpp,
          libdirac_motionest/block_match.cpp: Fixed bug with computing MV
          costs. Incorporated patch 1216297 for quality measurement.

2005-06-10 11:52  tjdwave

        * libdirac_encoder/dirac_encoder.cpp: Changed default block height
          and width for motion compensation to 24 by 24 pixels from 20 by
          20. Separation remains 16 by 16. The result is reduced blockiness
          in areas of poor motion prediction. Downside is slower encoder,
          but the block parameters are merely scaled-up versions of the SD
          parameters.

2005-05-26 19:48  asuraparaju

        * extras/patches/ffmpeg-0.4.9-pre1-dirac-0.5.x.patch: Fixed bug
          1209053. Frame size parameters are now fetched from the AV
          context before setting frame size. Also fixed a bug where quality
          factor was not being set correctly.

2005-05-26 16:20  stuart_hc

        * tests/samples.at: Fix bug 1209017: use -width/-height instead of
          -x/-y

2005-05-26 16:01  stuart_hc

        * encoder/encmain.cpp: Fix bug 1209017: use -width/-height instead
          of -x/-y Also fix SEGV when incorrect -cformat parameter is
          passed.

2005-05-26 15:59  stuart_hc

        * README: Fix bug 1209017: use -width/-height instead of -x/-y

2005-05-25 14:30  asuraparaju

        * ChangeLog: [no log message]

2005-05-25 13:51  asuraparaju

        * README.release: Add ffmpeg patch to checklist

2005-05-25 13:43  asuraparaju

        * NEWS: Included dirac-0.5.2 release notes

2005-05-25 13:40  asuraparaju

        * AUTHORS: Updated contibutor list

2005-05-25 13:06  asuraparaju

        * extras/patches/: MPlayer-1.0pre7_dirac-0.5.x.patch,
          README_MPlayer-1.0pre7_dirac-0.5.x_patch,
          README_ffmpeg-0.4.9-pre1-dirac-0.5.x_patch,
          README_transcode-0.6.14_dirac-0.5.x_patch,
          ffmpeg-0.4.9-pre1-dirac-0.5.x.patch,
          transcode-0.6.14-dirac-0.5.x.patch: Patches to MPlayer, ffmped
          and transcode to add Dirac support to these tools.

2005-05-24 08:28  tjdwave

        * libdirac_encoder/seq_compress.cpp: Fixed bug with count increment
          so that fast adaption takes place on first recoding rather than
          second.

2005-05-20 15:30  asuraparaju

        * README: Modified this file to remove all references to image
          header files which are no longer required.

2005-05-20 15:25  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fix minor glitches in verbose
          output

2005-05-20 15:02  asuraparaju

        * win32/VS2003/dirac.sln: Remove MakeHeader from list of targets as
          contents of header files have been replaced with command line
          arguments.

2005-05-20 15:01  asuraparaju

        * encoder/encmain.cpp, libdirac_encoder/dirac_encoder.cpp,
          libdirac_encoder/seq_compress.cpp: Fix bugs in bit rate reporting

2005-05-20 14:05  asuraparaju

        * Makefile.am, configure.ac: make_header utility is no longer
          required. So removing picheader directory from list of targets.

2005-05-20 13:44  asuraparaju

        * tests/: colourbars.at, create_dirac_testfile.pl, samples.at:
          Remove all references to make_header. Sequence header information
          is now passed to encoder on the command line.

2005-05-20 13:43  asuraparaju

        * util/instrumentation/instrmain.cpp: The encoder now writes
          sequence header information to the instrumentation output file.
          So read sequence info from instrumentation file.

2005-05-20 13:42  asuraparaju

        * encoder/encmain.cpp: Fix g++ errors. Write the sequence header
          information to the instrumentation file.

2005-05-20 13:41  asuraparaju

        * libdirac_common/: pic_io.cpp, pic_io.h: Delete all code relating
          to header file creation/reading. All sequence parameters are now
          supplied to encoder via the command line.

2005-05-19 12:23  dirac_dev

        * decoder/decmain.cpp: Removed any references to header files.

2005-05-19 12:15  dirac_dev

        * encoder/encmain.cpp: Removed requirement of a header file. All
          parameters are handled through command-line options. Most options
          will still be set by the pre-set option, although they can be
          overriden.

2005-05-19 12:03  asuraparaju

        * unit_tests/motion_comp_test.cpp: Update motion compensation tests
          to use the helper function in MotionCompensator to instantiate
          the MotionCompensator sub-class for the mv precision value
          selected.

2005-05-19 11:56  asuraparaju

        * libdirac_decoder/: frame_decompress.cpp, frame_decompress.h: Now
          reads the MV precision in the frame header.

2005-05-19 11:35  asuraparaju

        * libdirac_encoder/frame_compress.cpp: Writing the motion vector
          precision value as part of frame header. Default mv precision is
          set to 2 i.e. quarter pixel.

2005-05-19 11:25  asuraparaju

        * libdirac_motionest/me_utils_mmx.cpp: Fixed C/C++ aliasing
          violations that caused a performance slow down when compiled with
          gcc 4.0.0

2005-05-19 11:24  asuraparaju

        * libdirac_motionest/me_utils.h: Fixed gcc 4.0.0 warnings

2005-05-19 11:23  asuraparaju

        * libdirac_common/bit_manager.h: Updated bitstream version to 0.4

2005-05-19 11:21  asuraparaju

        * libdirac_common/: common.cpp, common.h: Added a field to
          CodecParams class for motion vector precision. A value of 'n'
          implies a precision of (2**-n)i pixel. i.e. a value of 2 implies
          an mv precision of 1/4 i.e. quarter pixel.

2005-05-19 11:16  asuraparaju

        * libdirac_common/: mot_comp.cpp, mot_comp.h: Added support for
          multiple levels of motion vector precision - pixel, half pixel,
          quarter pixel and multiple pixel. The main MotionCompensator
          class is an abstract class. Each of its sub-classes define the
          CompensateBlock function to a particular level of motion
          precision.

2005-05-19 11:12  asuraparaju

        * libdirac_motionest/: me_mode_decn.cpp, me_subpel.cpp,
          motion_estimate.cpp: Motion estimation modified to support
          variable motion vector precision. The implementation is
          preliminary, and should be modified later: vectors are scaled by
          a factor 8 to give a maximum of eighth-pel accuracy. Generic
          block matching functions are used at this accuracy even though
          true accuracy will be less - the subpixel search is merely
          truncated.

          In the future, half-pixel and quarter-pixel block matching
          functions should be written, just as for motion compensation as
          these will be faster.

2005-05-13 09:40  mservais

        * libdirac_common/mot_comp.cpp, libdirac_common/motion.cpp,
          libdirac_common/mv_codec.cpp,
          libdirac_motionest/me_motion_type_decn.cpp,
          libdirac_motionest/me_motion_type_decn.h,
          libdirac_motionest/motion_estimate.cpp,
          win32/VS2003/ConversionUtils/BMPtoRGB/Debug/BuildLog.htm,
          win32/VS2003/ConversionUtils/BMPtoRGB/Debug/vc70.idb,
          win32/VS2003/ConversionUtils/BMPtoRGB/Debug/vc70.pdb: Prediction
          units can now use either global or block motion. (Decision based
          on similarity of global and block motion vectors.)

2005-05-11 10:13  tjdwave

        * libdirac_common/wavelet_utils.cpp: Fixed -pedantic errors on
          unused variables. Replaced dynamic built-in array (which violates
          ISO C++) with array class.

2005-05-05 15:10  tjdwave

        * unit_tests/wavelet_utils_test.cpp: Added support for testing all
          different wavelet transforms for invertibility.

2005-05-04 14:35  tjdwave

        * libdirac_common/common.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h, libdirac_common/band_codec.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp: Modifications to support
          different wavelet filter types.

          wavelet_utils.{cpp,h} Added three new filter types with lifting
          implementations, all much faster than Daubechies (9,7).
          Refactored the code to support filter selection in constructor of
          WaveletTransform class. Added method to correctly output DC band
          expected values. Separated off coefficient interleaving and
          deinterleaving. Setting of subband weights is now a
          WaveletTransform function, as noise weighting factors depend on
          the filter choice.

          band_codec.cpp Removed literal constant and used 0 instead for
          top-left DC value prediction.

          comp_compress.cpp, comp_decompress.cpp Changed default filters
          from Daubechies (9,7) to faster filters which perform almost as
          well. This is a temporary mod. It is intended to be able to
          select fast filters via the CLI and for wavelet filter choices to
          be signalled in frame headers. This will be done in later
          refactoring to converge with the bitstream syntax in terms of
          frame types and header information.

2005-05-04 12:13  mservais

        * libdirac_motionest/: me_motion_type_decn.cpp,
          me_motion_type_decn.h: Introduces decision as to whether
          individual prediction units should use Global Motion or not. (Not
          complete yet!)

2005-05-04 12:06  mservais

        * libdirac_common/common.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_motionest/motion_estimate.cpp,
          win32/VS2003/libdirac_common/libdirac_common.vcproj,
          win32/VS2003/libdirac_motionest/libdirac_motionest.vcproj:
          Introduces decision as to whether individual prediction units
          should use Global Motion or not. (Not complete yet!)

2005-04-13 16:36  asuraparaju

        * libdirac_common/arrays.h: New constants PIXEL_VALUE_MIN and
          PIXEL_VALUE_MAX to define the upper and lower limits on pixel
          values.

2005-04-13 16:28  asuraparaju

        * libdirac_common/frame.cpp: Included an MMX implementation of
          Frame::ClipComponent to achieve a decoding speedup in conjuction
          with mot_comp.cpp changes. Also using pointer arithmetic insted
          of index operator when accessing TwoDArray objects.

2005-04-13 16:25  asuraparaju

        * libdirac_motionest/me_utils_mmx.cpp: Using pointer arithmetic
          instead of the index operator when using TwoDArray objects to get
          an overall slight improvement in encoding speed.

2005-04-13 16:16  asuraparaju

        * libdirac_common/mot_comp.cpp: Partially applied patch 1151976.
          Using pointer arithmetic instead of index operator to access
          TwoDArray objects. A few other tweaks to improve cache locality.

2005-04-13 16:09  asuraparaju

        * libdirac_encoder/quant_chooser.cpp: Fix errors reported by
          MIPSPro C++ compiler regarding not specifiying the namespace for
          math functions like floor and log.

2005-04-13 16:06  asuraparaju

        * libdirac_common/arith_codec.h: Fix g++ warning re unused
          variables.

2005-04-13 16:06  asuraparaju

        * configure.ac: Included icc compile time flag -wr964 to treat
          warning 964 as a remark when mmx is enabled.

2005-04-12 11:56  timborer

        * doc/DiracSpecV0.1.doc: Modifed default Motion Vector precision
          (now 1/4 pel), added note that max MV precision should be
          included in Level. Corrected typos.

2005-04-06 15:31  tjdwave

        * libdirac_common/: band_codec.cpp, band_codec.h, mv_codec.cpp,
          mv_codec.h: Oops. Correct files now uploaded.

2005-04-06 15:28  tjdwave

        * libdirac_common/: band_codec.cpp, band_codec.h, mv_codec.cpp,
          mv_codec.h: Changes to reflect mods to arith_codec.h: in
          particular, Update is removed as this is no longer a virtual
          function. Instead the base class function is called directly in
          the encoding/decoding engines.

2005-04-06 15:07  tjdwave

        * libdirac_common/arith_codec.h: Speed-up to arithmetic coding and
          decoding, using probability range renormalisation to avoid
          unnecessary divides.

2005-04-05 14:56  timborer

        * doc/DiracSpecV0.1.doc: Initial draft of Dirac spec. This is not a
          specification of what we have but a proposed spec for what we
          want. At the moment it focuses on syntax rather than semantics.
          It is inkorect and incomplet.

2005-03-17 11:21  mservais

        * libdirac_motionest/motion_estimate.cpp: Example with "Global
          Motion Only" set to 1.

2005-03-17 11:01  mservais

        * libdirac_motionest/: filter_weighted_local.cpp,
          global_motion.cpp, me_mode_decn.cpp, model_affine.cpp,
          model_affine.h, model_global_motion.h, model_projective.h,
          motion_estimate.cpp, reject_intensity.cpp, reject_sad.cpp:
          Initial implementation of Global Motion. Allows for Global Motion
          Only switch for each frame. If this is set, only the Global
          Motion Parameters are coded - i.e. no block motion vectors are
          coded.

2005-03-17 10:57  mservais

        * libdirac_common/common.h, libdirac_common/mot_comp.cpp,
          libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h: Initial implementation of
          Global Motion. Allows for Global Motion Only switch for each
          frame. If this is set, only the Global Motion Parameters are
          coded - i.e. no block motion vectors are coded.

2005-03-17 10:43  mservais

        * libdirac_motionest/reject_local.cpp: Initial implementation of
          Global Motion. Allows for Global Motion Only switch for each
          frame. If this is set, only the Global Motion Parameters are
          coded - i.e. no block motion vectors are coded.

2005-03-17 10:34  mservais

        * libdirac_motionest/global_motion.h: Initial Implementation for
          Global Motion. Allows a Global Motion Only switch for each frame.
          If this is set, only the Global Motion Parameters are coded -
          i.e. no block motion vectors are coded.

2005-03-11 13:43  asuraparaju

        * libdirac_common/: common.cpp, common.h: Fixed bug 1159031.
          dirac_quantiser_lists is not an extern anymore and is limited to
          file scope.

2005-03-04 14:55  tjdwave

        * libdirac_common/arrays.h, AUTHORS: Added Mike Ferenduros' mods to
          arrays, so that memory allocation is always contiguous. Also
          added him to list of contributors.

2005-02-17 14:07  asuraparaju

        * ChangeLog: [no log message]

2005-02-17 13:05  asuraparaju

        * NEWS: Included Dirac 0.5.1 release notes

2005-02-17 13:05  asuraparaju

        * README.release: Included Dirac Directshow filter and Mplayer
          patch to checklist

2005-02-17 13:03  asuraparaju

        * README.developers: Modified MMX optimisation implementation
          guidelines to use Intrinsics. Included notes on conducting
          end-to-end test using 'make check' and create_dirac_testfile.pl

2005-02-17 13:02  asuraparaju

        * README: Included notes on how to enable MMX optimisations and how
          to use the data generation script create_dirac_testfile.pl

2005-02-17 12:23  asuraparaju

        * picheader/headmain.cpp: Not returning an exit code when usage
          info is displayed.

2005-02-17 12:22  asuraparaju

        * tests/create_dirac_testfile.pl: Fix compilation errors.

2005-02-17 12:21  asuraparaju

        * tests/Makefile.am: Include scrip create_dirac_testfile.pl in
          install list to bin directory

2005-02-16 17:52  asuraparaju

        * libdirac_common/bit_manager.h: the bitstream has changed. So
          updated bitstream version so that an error is reported if
          attempting to decode  older versions of Dirac files.

2005-02-16 17:48  asuraparaju

        * extras/patches/: MPlayer-1.0pre6a_dirac-0.5.x.patch,
          README_MPlayer-1.0pre6a_dirac-0.5.x_patch: Mplayer 1.0pre6a patch
          to enable Dirac support in MPlayer

2005-02-16 17:42  asuraparaju

        * extras/dirac_dshow/src/diracsplitter/: DiracSplitter.cpp,
          DiracSplitter.def: Dirac direct show filter files

2005-02-16 17:40  asuraparaju

        * extras/dirac_dshow/src/basesplitter/: BaseSplitterFileEx.cpp,
          BaseSplitterFileEx.h: Direct show filter files

2005-02-16 17:19  asuraparaju

        * extras/dirac_dshow/: DiracSplitter.sln, INSTALL,
          README.developers, include/IChapterInfo.h,
          include/IKeyFrameInfo.h, include/moreuuids.h,
          include/matroska/matroska.h, include/winddk/devioctl.h,
          include/winddk/ntddcdrm.h, include/winddk/ntddstor.h,
          src/basesplitter/AsyncReader.cpp, src/basesplitter/AsyncReader.h,
          src/basesplitter/BaseSplitter.cpp,
          src/basesplitter/BaseSplitter.h,
          src/basesplitter/BaseSplitterFile.cpp,
          src/basesplitter/BaseSplitterFile.h,
          src/basesplitter/basesplitter.vcproj,
          src/basesplitter/stdafx.cpp, src/basesplitter/stdafx.h,
          src/diracsplitter/DiracSplitter.h,
          src/diracsplitter/DiracSplitter.rc,
          src/diracsplitter/DiracSplitter.vcproj,
          src/diracsplitter/DiracSplitterFile.cpp,
          src/diracsplitter/DiracSplitterFile.h,
          src/diracsplitter/resource.h, src/diracsplitter/stdafx.cpp,
          src/diracsplitter/stdafx.h, src/dsutil/DSUtil.cpp,
          src/dsutil/DSUtil.h, src/dsutil/MediaTypes.cpp,
          src/dsutil/MediaTypes.h, src/dsutil/NullRenderers.cpp,
          src/dsutil/NullRenderers.h, src/dsutil/a_yuv2rgb.asm,
          src/dsutil/a_yuvtable.asm, src/dsutil/convert_a.asm,
          src/dsutil/dsutil.vcproj, src/dsutil/stdafx.cpp,
          src/dsutil/stdafx.h, src/dsutil/text.cpp, src/dsutil/text.h,
          src/dsutil/vd.cpp, src/dsutil/vd.h, src/switcher/AudioSwitcher.h,
          src/switcher/StreamSwitcher.h: Patches and DirectShow filter
          related files

2005-02-15 11:39  asuraparaju

        * win32/VS2003/: dirac.sln, ConversionUtils/ConversionUtils.vcproj,
          ConversionUtils/BMPtoRGB/BMPtoRGB.vcproj,
          ConversionUtils/RGBtoBMP/RGBtoBMP.vcproj,
          ConversionUtils/RGBtoUYVY/RGBtoUYVY.vcproj,
          ConversionUtils/RGBtoYUV411/RGBtoYUV411.vcproj,
          ConversionUtils/RGBtoYUV420/RGBtoYUV420.vcproj,
          ConversionUtils/RGBtoYUV422/RGBtoYUV422.vcproj,
          ConversionUtils/RGBtoYUV444/RGBtoYUV444.vcproj,
          ConversionUtils/UYVYtoRGB/UYVYtoRGB.vcproj,
          ConversionUtils/YUV411toRGB/YUV411toRGB.vcproj,
          ConversionUtils/YUV420toRGB/YUV420toRGB.vcproj,
          ConversionUtils/YUV422toRGB/YUV422toRGB.vcproj,
          ConversionUtils/YUV444toRGB/YUV444toRGB.vcproj,
          ConversionUtils/libconv_common/libconv_common.vcproj,
          DecodeDirac/DecodeDirac.vcproj, DiracDecoder/DiracDecoder.vcproj,
          DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          DiracEncoder/DiracEncoder.vcproj,
          DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          EncodeDirac/EncodeDirac.vcproj, Everything/Everything.vcproj,
          InstrumentDirac/InstrumentDirac.vcproj,
          InstrumentDirac/libdirac_instrument/libdirac_instrument.vcproj,
          MakeHeader/MakeHeader.vcproj,
          libdirac_common/libdirac_common.vcproj,
          libdirac_motionest/libdirac_motionest.vcproj: Added new targets
          for building with MMX optimisation enabled.

2005-02-15 11:38  asuraparaju

        * configure.ac: Update release id to 0.5.1. Added flag to enable
          MMX optimisation and test for checking if MMX optimising is
          available. Default opt level changed to -O3 for g++ and icc.
          Added extra optimisation flags when compiling with g++.  Fixed
          cppunit availability check to report linker errors so that shared
          library mismatches are trapped.

2005-02-15 11:33  asuraparaju

        * encoder/encmain.cpp: Modified error messages to output more
          information.

2005-02-15 11:31  asuraparaju

        * tests/: Makefile.am, create_dirac_testfile.pl, samples.at,
          testsuite.at: A new script to generate dirac test data of
          different chroma formats from source RGB format input data. A new
          testcase, samples.at, which looks for Dirac test data in the
          directory specified by the env variable DIRAC_INPUT_DATA_DIR.
          The script and testcase are useful to run end-to-end tests using
          all input formats supported by Dirac.

2005-02-15 11:21  asuraparaju

        * libdirac_motionest/: Makefile.am, me_utils.cpp, me_utils_mmx.cpp,
          me_utils_mmx.h: Using MMX to compute block differences. Applied a
          modified version of patch 1081743.

2005-02-15 11:15  asuraparaju

        * libdirac_common/: band_codec.h, wavelet_utils.h: Fixed doxygen
          warnings

2005-02-15 11:13  asuraparaju

        * acinclude.m4: File containing user defined autoconf macro
          functions specific to Dirac project

2005-02-08 14:02  tjdwave

        * libdirac_common/arith_codec.h: Replaced delete with delete[] in
          destructor. Added clean-up in data reading so that the class can
          be re-used without causing a memory leak.

2005-02-07 12:12  tjdwave

        * libdirac_encoder/comp_compress.cpp,
          libdirac_decoder/comp_decompress.cpp: Fixed bug where blocks of
          coefficients with zero dimensions were being generated. There's
          now a minimum size of 4x4 coefficients for a code block.

2005-02-02 15:29  asuraparaju

        * libdirac_common/arith_codec.h, libdirac_common/band_codec.cpp,
          libdirac_common/mv_codec.cpp,
          libdirac_decoder/comp_decompress.cpp: Fixed g++ warnings when
          compiled in debug mode (i.e. configure with flag --enable-debug)

2005-02-02 15:24  dirac_dev

        *
          win32/VS2003/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj:
          Added quant_chooser.cpp/h

2005-02-02 14:50  tjdwave

        * libdirac_decoder/: comp_decompress.cpp, comp_decompress.h: Added
          support for multiple code blocks/quantisers. Added separate
          function for reading header.

2005-02-02 14:49  tjdwave

        * libdirac_encoder/Makefile.am: Modded to add quant_chooser.{cpp,h}

2005-02-02 14:47  tjdwave

        * libdirac_encoder/: comp_compress.cpp, comp_compress.h,
          quality_monitor.cpp, quality_monitor.h: Removed quantiser
          selection from comp_compress to another class.

2005-02-02 14:46  tjdwave

        * libdirac_encoder/: quant_chooser.cpp, quant_chooser.h: Modified
          author details.

2005-02-02 14:44  tjdwave

        * libdirac_encoder/: quant_chooser.cpp, quant_chooser.h: Added
          classes to handle selecting quantisers. These allow a single
          quantiser per subband to be chosen, or alternatively one for each
          code block.

2005-02-02 14:42  tjdwave

        * libdirac_common/: band_codec.cpp, common.cpp, mv_codec.cpp,
          wavelet_utils.cpp, arith_codec.h, band_codec.h, common.h,
          mv_codec.h, wavelet_utils.h: Modified wavelet coeff coding to
          code blocks of coefficients. with skip flags if all coefficients
          are zero. Wavelet coefficient coding has reduced use of class
          member variables for clarity. The arithmetic coding and decoding
          engines have been modified to improve speed and code
          organisation. The decoder now reads in all the data before
          beginning decoding. Coding of motion vector data has been tidied,
          and modified to accommodate changes in the arithmetic coding
          engine. Block prediction modes are now coded slightly
          differently, which improves compression performance.

2005-01-24 16:58  tjdwave

        * libdirac_common/common.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_motionest/me_mode_decn.cpp:
          Changed prediction of block modes to be bitwise - bit 0 indicates
          the presence of a Ref1 MV, and bit 1 indicated the presence of a
          Ref2 MV. This is also reflected in selecting modes in motion
          estimation.

2005-01-24 16:06  tjdwave

        * libdirac_motionest/me_mode_decn.cpp: Re-instituted bi-directional
          prediction, inadvertently commented out.

2005-01-24 14:43  tjdwave

        * libdirac_motionest/: block_match.cpp, block_match.h,
          me_subpel.cpp: Made local motion vector variance a member
          function of the block matcher, and made the cut-off limits depend
          on the picture size. This improves performance at HD by 4% or so.

2005-01-18 19:13  mservais

        * libdirac_motionest/global_motion.h: Testing CVS (Marc)

2005-01-18 18:20  mservais

        * libdirac_motionest/global_motion.h: Testing CVS (Marc)

2005-01-18 17:42  mservais

        * libdirac_motionest/global_motion.cpp: Marc: Testing that CVS
          works OK

2005-01-12 17:50  asuraparaju

        * libdirac_motionest/global_motion.h: Forgot to add this file with
          the earlier lot of global motion files

2005-01-12 16:18  asuraparaju

        * win32/VS2003/libdirac_motionest/libdirac_motionest.vcproj: Added
          global motion related files to the project

2005-01-12 15:30  asuraparaju

        * libdirac_motionest/: Makefile.am, filter_weighted_local.cpp,
          filter_weighted_local.h, global_motion.cpp, model_affine.cpp,
          model_affine.h, model_global_motion.cpp, model_global_motion.h,
          model_projective.cpp, model_projective.h, motion_estimate.cpp,
          refine_motion_vector_field.cpp, refine_motion_vector_field.h,
          reject_edge.cpp, reject_edge.h, reject_intensity.cpp,
          reject_intensity.h, reject_local.cpp, reject_local.h,
          reject_motion_vector_outliers.cpp,
          reject_motion_vector_outliers.h, reject_outlier.cpp,
          reject_outlier.h, reject_sad.cpp, reject_sad.h, reject_value.cpp,
          reject_value.h, test_global_motion_model.cpp,
          test_global_motion_model.h, test_mv_sad.cpp, test_mv_sad.h:
          Global motion estimation related new files and mods to existing
          files

2004-12-22 11:59  tjdwave

        * libdirac_motionest/block_match.cpp: Fixed bug with assigning
          costs to lists of vectors, reported by Eric Rannaud.

2004-12-10 15:28  asuraparaju

        * libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          util/instrumentation/libdirac_instrument/Makefile.am: Fixed bug
          1081435.

2004-12-10 15:21  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am, picheader/Makefile.am,
          util/instrumentation/Makefile.am: Link in math library, libm, if
          required.

2004-12-10 15:20  asuraparaju

        * tests/colourbars.at: Not ignoring standard error so that errors
          are trapped when running the test suite.

2004-12-10 15:18  asuraparaju

        * encoder/encmain.cpp: Print the bitrate to standard output even
          when not in verbose mode.

2004-12-10 15:16  asuraparaju

        * libdirac_encoder/comp_compress.cpp: Included Peter Meerwald in
          list of contributors

2004-12-10 15:13  asuraparaju

        * libdirac_encoder/comp_compress.cpp: Fixed errors reported by
          MIPSpro 7.4 C++ compiler. Applied patch 1081664 which improves
          encoding speed by 10-15%.

2004-12-10 15:04  asuraparaju

        * configure.ac: Added check to see if math library, libm, needs to
          be linked. Added test to check for C++ header files that are not
          included in old versions of C++ compilers. Applied patch 1081730.

2004-12-10 14:59  asuraparaju

        * bootstrap: Exit with a failure message if automake fails.

2004-12-01 16:21  asuraparaju

        * win32/VS2003/MakeHeader/MakeHeader.vcproj: MakeHeader.exe now is
          correctly being created in win32/VS2003/bin/<build-type>
          directory.

2004-12-01 14:45  asuraparaju

        * ChangeLog: [no log message]

2004-12-01 14:40  asuraparaju

        * NEWS: Included 0.5.0 release notes

2004-12-01 14:39  asuraparaju

        * README: Updated Section 3 (Building and installing) to reflect
          changes to building the codec under UNIX-like envoroments and MS
          Windows. Added sub-section on how to build Dirac coder on MS
          Windows platform using MS VC++ .NET 2003. Updated make_header
          usage  in the File Formats suc-section. Update encoder app usage
          information.

2004-12-01 14:35  asuraparaju

        * README.developers: New sub-section on namespaces to be used in
          Dirac. Added note on new test target 'valgrind-check'

2004-12-01 14:32  asuraparaju

        * TODO: Replaced contents with link to the TODO list on Dirac
          homepage

2004-12-01 14:13  timborer

        * util/conversion/YUV420toRGB.cpp: Fixed bug 1050816.

2004-11-29 12:54  asuraparaju

        * libdirac_common/arith_codec.h, libdirac_common/arrays.h,
          libdirac_common/band_codec.h, libdirac_common/bit_manager.h,
          libdirac_common/common.h, libdirac_common/mot_comp.h,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.h,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.h,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.h: Fix warnings reported by doxygen

2004-11-26 13:47  asuraparaju

        * misc/xparam-1.22-gcc-3.4.0.patch: xparam package not used hence
          removed this file from repository

2004-11-26 13:43  asuraparaju

        * windows/dirac/: dirac.dsw, libdirac_common/libdirac_common.dsp,
          libdirac_decoder/libdirac_decoder.dsp,
          libdirac_encoder/libdirac_encoder.dsp,
          libdirac_motionest/libdirac_motionest.dsp: Removing older VS
          files that are no longer supported

2004-11-26 13:36  asuraparaju

        * unit_tests/: frames_test.cpp, frames_test.h,
          motion_comp_test.cpp, motion_comp_test.h: Unit test for Motion
          Compensation

2004-11-26 13:36  asuraparaju

        * unit_tests/Makefile.am: Added Motion compensation unit test
          related files to list of targets

2004-11-26 13:28  asuraparaju

        * configure.ac: Modified check for cppunit test framework to ensure
          that it can run without errors. This was required because unit
          tests fail when built with icc. This is a temporary measure until
          it is determined why unit tests fail when built with icc on
          linux.

2004-11-26 13:23  asuraparaju

        * AUTHORS: Updated list of contributors

2004-11-26 13:22  asuraparaju

        * Makefile.am: Removed win directory from distribution list as
          build with nmake is no longer supported. Added win32 to list of
          target subdirectories

2004-11-26 13:13  asuraparaju

        * win32/: Makefile.am, VS2003/Makefile.am, VS2003/dirac.sln,
          VS2003/ConversionUtils/ConversionUtils.vcproj,
          VS2003/ConversionUtils/BMPtoRGB/BMPtoRGB.vcproj,
          VS2003/ConversionUtils/RGBtoBMP/RGBtoBMP.vcproj,
          VS2003/ConversionUtils/RGBtoUYVY/RGBtoUYVY.vcproj,
          VS2003/ConversionUtils/RGBtoYUV411/RGBtoYUV411.vcproj,
          VS2003/ConversionUtils/RGBtoYUV420/RGBtoYUV420.vcproj,
          VS2003/ConversionUtils/RGBtoYUV422/RGBtoYUV422.vcproj,
          VS2003/ConversionUtils/RGBtoYUV444/RGBtoYUV444.vcproj,
          VS2003/ConversionUtils/UYVYtoRGB/UYVYtoRGB.vcproj,
          VS2003/ConversionUtils/YUV411toRGB/YUV411toRGB.vcproj,
          VS2003/ConversionUtils/YUV420toRGB/YUV420toRGB.vcproj,
          VS2003/ConversionUtils/YUV422toRGB/YUV422toRGB.vcproj,
          VS2003/ConversionUtils/YUV444toRGB/YUV444toRGB.vcproj,
          VS2003/ConversionUtils/libconv_common/libconv_common.vcproj,
          VS2003/DecodeDirac/DecodeDirac.vcproj,
          VS2003/DiracDecoder/DiracDecoder.vcproj,
          VS2003/DiracDecoder/libdirac_decoder/libdirac_decoder.vcproj,
          VS2003/DiracEncoder/DiracEncoder.vcproj,
          VS2003/DiracEncoder/libdirac_encoder/libdirac_encoder.vcproj,
          VS2003/EncodeDirac/EncodeDirac.vcproj,
          VS2003/Everything/Everything.vcproj,
          VS2003/InstrumentDirac/InstrumentDirac.vcproj,
          VS2003/InstrumentDirac/libdirac_instrument/libdirac_instrument.vcproj,
          VS2003/MakeHeader/MakeHeader.vcproj,
          VS2003/libdirac_common/libdirac_common.vcproj,
          VS2003/libdirac_motionest/libdirac_motionest.vcproj: Solution and
          Project files for building Dirac using MS Visual Studio 2003

2004-11-25 13:42  asuraparaju

        * decoder/decmain.cpp, encoder/encmain.cpp: Modified to use only
          public API and none of the C++ classes

2004-11-25 13:41  asuraparaju

        * libdirac_common/dirac_types.h: Turn off _declspec for non-windows
          builds and windows static builds

2004-11-24 11:41  tjdwave

        * doc/algorithm/rdo_mot_est.htm: Remaining mods to algorithmic
          docs.

2004-11-24 11:27  tjdwave

        * doc/algorithm/: algorithm.htm, const_qual.htm, intra_pred.htm,
          intro.htm, quantisation.htm, subband_rdo.htm: Mods to algorithm
          docs; intra_pred.htm removed.

2004-11-22 14:23  asuraparaju

        * ChangeLog: [no log message]

2004-11-22 14:15  asuraparaju

        * AUTHORS: Updated list of contributors.

2004-11-22 14:05  asuraparaju

        * libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/cmd_line.cpp, libdirac_common/cmd_line.h,
          libdirac_common/common_types.h,
          libdirac_common/dirac_assertions.h, libdirac_common/frame.h,
          libdirac_common/golomb.cpp, libdirac_common/golomb.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_common/wavelet_utils.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_cppparser.h,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h: Added namespace support. All
          core Dirac functionality is now in namespace dirac.

2004-11-22 13:58  asuraparaju

        * bootstrap: Added libtool support

2004-11-22 13:57  asuraparaju

        * dirac.pc.in: After the library restructuring, only two libraries
          are required - the encoder and decoder libraries.

2004-11-22 13:57  asuraparaju

        * configure.ac: Added libtool support to build libraries.

2004-11-22 13:56  asuraparaju

        * INSTALL: Minor changes related to the main configure file and the
          flags to use

2004-11-22 13:56  asuraparaju

        * README: Added descrition of additional flags available at
          configure time

2004-11-22 13:54  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          util/conversion/common/Makefile.am,
          util/instrumentation/Makefile.am,
          util/instrumentation/libdirac_instrument/Makefile.am: Instead of
          4 libraries only two libraries are now built and installed -
          libdirac_encoder and libdirac_decoder. Only the public "C" API
          headers and libraries are copied to the installation directories
          when 'make install' is used.  Now using libtool to build
          libraries. On GNU/Linux and UNIX-like platforms, shared and
          static versions of the exported libraries are built.      On MS
          Windows platforms, only shared libraries or static libraries can
          be built but not both.

2004-11-22 13:51  asuraparaju

        * tests/: Makefile.am, colourbars.at, unittests.at: Added valgrind
          support while running tests. The 'make valgrind-check' command
          now runs valgrind memory checks on all the tests. Note that the
          tests take a very long time to run in this mode

2004-11-22 13:50  asuraparaju

        * util/: Makefile.am, conversion/Makefile.am: Include Id tag to
          track revisions.

2004-11-22 13:48  asuraparaju

        * doc/: Makefile.am, algorithm/Makefile.am, api/Makefile.am,
          programmers/Makefile.am: Included the Id tag to track revisions.

2004-11-22 13:46  asuraparaju

        * Makefile.am: Added support for 'valgrind-check' argument to make.

2004-11-22 13:42  asuraparaju

        * util/instrumentation/libdirac_instrument/: draw_overlay.cpp,
          draw_overlay.h, gm_inliers.cpp, gm_inliers.h, motion_arrows.cpp,
          motion_arrows.h, motion_colour.cpp, motion_colour.h,
          motion_colour_arrows.cpp, motion_colour_arrows.h, overlay.cpp,
          overlay.h, overlay_symbols.cpp, overlay_symbols.h, pred_mode.cpp,
          pred_mode.h, sad.cpp, sad.h, split_mode.cpp, split_mode.h: Fixed
          "invalid read" and "memory leak" errors reported by valgrind.
          Added namespace support. All instrumentation library
          functionality is in the namespace dirac_instr.

2004-11-22 13:39  asuraparaju

        * util/instrumentation/: process_sequence.cpp, process_sequence.h:
          Replace all refrences to PicInput and PicOutput classes with
          FileStreamInput and FileStreamOutput classes. m_zl (number of
          frames in sequence) is no longer part of the Sequence header.
          Changed function ProcessSequence::DoSequence to work around this.

2004-11-22 13:39  asuraparaju

        * util/instrumentation/instrmain.cpp: Replaces all references to
          PicInput and PicOutput classes with FileStreamInput and
          FileStreamOutput classes.

2004-11-22 13:37  asuraparaju

        * picheader/: Makefile.am, headmain.cpp: Number of frames in a
          sequence is no longer required in encode/decode operations.

2004-11-22 13:36  asuraparaju

        * libdirac_encoder/: seq_compress.cpp, seq_compress.h: Restructured
          SequenceCompressor class to separate frame loading and frame
          compression functionality into two different functions. This was
          necessary to implement the "C" interface to the encoder. Added
          new access functions, GetFrameEncoded and GetMEData(), to return
          the latest frame encoded and the motion estimation data
          associated with it. Added function EndSequence that writes end of
          sequence information the the output bitstream.  Added namespace
          support. All core Dirac functionality is now in namespace dirac.

2004-11-22 13:35  asuraparaju

        * libdirac_encoder/: frame_compress.cpp, frame_compress.h: Motion
          Estimation data is no longer written to a file. Instead, added
          new functions, IsMEDataAvail and GetMEdata,  to enable class user
          to access the Motion Estimation data.  Added namespace support.
          All core Dirac functionality is now in namespace dirac.

2004-11-22 13:34  asuraparaju

        * libdirac_encoder/comp_compress.cpp: Allowed a full range of
          quantisers, so that lossless coding is possible.  Replaced tabs
          with spaces.  Fixed MSVC++ compiler warnings.  Added namespace
          support.

2004-11-22 13:33  asuraparaju

        * libdirac_decoder/seq_decompress.cpp: Removed all depedency on the
          m_zl (number of frames in sequence) parameter in the sequence
          parameters which no longer exists.

2004-11-22 13:32  asuraparaju

        * decoder/decmain.cpp, libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/dirac_parser.h: Moved structures common to the
          encoder and decoder "C" interfaces into
          librac_common/dirac_types.h

2004-11-22 13:30  asuraparaju

        * libdirac_common/bit_manager.h: Updated the bit stream version
          since the the bitstream in release 0.5.0 differs from the
          bitstream in version 0.4.x.  Added namespace support. All core
          Dirac functionality is now in namespace dirac.

2004-11-22 13:29  asuraparaju

        * libdirac_common/: frame_buffer.cpp, frame_buffer.h: FrameBuffer
          functions now support all io classes derived from the abstract
          pic io classes StreamPicInput and StreamPicOutput Added namespace
          support. All core Dirac functionality is now in namespace dirac.

2004-11-22 13:29  asuraparaju

        * libdirac_common/: pic_io.cpp, pic_io.h: Restructured the PicIO
          classes so that in addition to file io streams, memory based io
          streams are also supported. Replaced PicInput and PicOutput
          classes with FileStreamInput and FileStreamOutput classes.

2004-11-22 13:28  asuraparaju

        * libdirac_common/dirac_assertions.cpp: Modified dirac_assert
          function always dump core irrespetive of whether the code was
          built in debug mode or release mode.  Added namespace support.
          All core Dirac functionality is now in namespace dirac.

2004-11-22 13:26  asuraparaju

        * unit_tests/: core_suite.h, cppunit_testsuite.cpp, utmain.cpp:
          Added licence declaration.

2004-11-22 13:25  asuraparaju

        * unit_tests/Makefile.am: Added wavelet transform test.

2004-11-22 13:24  asuraparaju

        * unit_tests/: arrays_test.cpp, arrays_test.h: Added unit test for
          TwoDArray value constructor.

2004-11-22 13:22  asuraparaju

        * README.developers: Added text on bootstrapping to create the
          configure script from the CVS repository. Also added text on how
          to profile the code.

2004-11-22 13:21  asuraparaju

        * libdirac_common/frame.cpp: Modified clipping so that overshoots
          are allowed wrt Rec 601 ranges. This is because the original data
          may have overshoots too.  Added namespace support. All core Dirac
          functionality is now in namespace dirac.

2004-11-22 13:20  asuraparaju

        * libdirac_motionest/: me_mode_decn.cpp, me_utils.cpp: Minor code
          tidy. Assignment = changed to copy construction for a number of
          declarations.  Added namespace support. All core Dirac
          functionality is now in namespace dirac.

2004-11-22 13:19  asuraparaju

        * libdirac_decoder/frame_decompress.cpp: Changes related to
          MotionCompensator constructor changes.  Added namespace support.
          All core Dirac functionality is now in namespace dirac.

2004-11-22 13:16  asuraparaju

        * libdirac_common/: arith_codec.h, arrays.h, bit_manager.cpp,
          mot_comp.cpp, mot_comp.h, motion.cpp, motion.h, wavelet_utils.h:
          Added constant-value constructor to arrays.h.  Removed motion
          compensation-specific functions from motion.h.  Refactored
          mot_comp.h for speed and to remove rounding errors, incorporating
          patch supplied by Stephen Bearcroft. Also changed function for
          computing overlapped block weights to remove potential rounding
          errors here.  Changed constructor to configure motion
          compensation for addition or subtraction.  Added namespace
          support. All core Dirac functionality is now in namespace dirac.

2004-11-22 13:13  asuraparaju

        * encoder/encmain.cpp: Modified the encoder to use the new Encoder
          Public API.

2004-11-22 13:11  asuraparaju

        * libdirac_common/: common.cpp, common.h: Enforced a maximum of
          100% overlap in setting block sizes.  Removed m_zl (number of
          frames) parameter from SeqParams class. The user need no longer
          to specify the number of frames in the input sequence.  Added new
          functions ChromaWidth and ChromaHeight to SeqParams class which
          return the width and height of the chroma component.  Changed
          m_output_path in EncParams to var type std::string to prevent
          buffer overflow errors.  Added namespace support. All core Dirac
          functionality is now in namespace dirac.

2004-11-22 13:09  asuraparaju

        * libdirac_common/: upconvert.cpp, upconvert.h: Fixed bug in
          interpolating at the edge of the picture. Also clarified variable
          names. Added namespace support. All core Dirac functionality is
          now in namespace dirac.

2004-11-22 13:07  asuraparaju

        * unit_tests/: wavelet_utils_test.cpp, wavelet_utils_test.h: Unit
          test to test the Wavelet utilities

2004-11-22 13:06  asuraparaju

        * tests/at_wrap.in: Wrapper script around tests to use valgrind for
          memory checks

2004-11-22 13:05  asuraparaju

        * libdirac_encoder/: dirac_encoder.cpp, dirac_encoder.h: Encoder
          "C" Public API implementation files

2004-11-22 13:04  asuraparaju

        * libdirac_common/dirac_types.h: New header file to hold structures
          common to the Dirac Encoder and Decoder public "C" API

2004-11-04 12:54  asuraparaju

        * encoder/encmain.cpp: Setting original frame dimensions to
          codec_params for global motion

2004-11-04 12:54  asuraparaju

        * libdirac_common/arrays.h: Applied patch 1055707 and extended it
          to use memcpy for assigment = and copy constructor in both One-D
          and Two-D arrays.

2004-11-04 12:53  asuraparaju

        * libdirac_common/common.h: Including original frame dimensions in
          codec_params for use in global motion

2004-11-04 12:53  asuraparaju

        * libdirac_common/: motion.cpp, motion.h: Including arrays to hold
          global motion data in MvData and MEData

2004-11-04 12:52  asuraparaju

        * libdirac_common/: wavelet_utils.cpp, wavelet_utils.h: Refactored
          wavelet transform (again). Code now does re-ordering separately
          so that all the wavelet lifting stages can be done with in-place
          calculation.  All loops traverse contiguous data in memory to
          facilitate future vectorisation.

2004-11-04 12:52  asuraparaju

        * libdirac_encoder/comp_compress.cpp: Fixed bug 1055692 which was
          caused by integer overflow when calculating the quality based on
          4th powers of error. The integer overflow resulted in attempting
          to determine the square root of a negative number which caused
          the encoder to go into a permanent loop when using gcc 3.4.2.
          Modified the Mean Square Error calculation to use double instead
          of int type to fix this bug.

2004-11-04 12:52  asuraparaju

        * libdirac_motionest/me_utils.cpp: Applied patch 1055714. Now the
          Difference calculator uses a CalcValueType accumulator rather
          than float.

2004-11-04 12:50  asuraparaju

        * util/instrumentation/: instrmain.cpp,
          libdirac_instrument/Makefile.am,
          libdirac_instrument/gm_inliers.cpp,
          libdirac_instrument/gm_inliers.h,
          libdirac_instrument/overlay.cpp, libdirac_instrument/overlay.h:
          Update instrumentation with changes related to handling global
          motion

2004-10-21 15:27  asuraparaju

        * libdirac_common/motion.cpp: Fix "invalid write error" reported by
          valgrind in function MEData::FindTransitions.  This was causing
          the encoder to seg fault when using video of size 352x576.  (Bug#
          1050757)

2004-10-21 15:26  asuraparaju

        * libdirac_motionest/motion_estimate.cpp: Fix the error reported by
          valgrind in SetChromaDC where an unitialised variable was being
          used to initialise dcarray.

2004-10-20 18:27  asuraparaju

        * libdirac_motionest/block_match.cpp: Code tidy

2004-10-20 18:26  asuraparaju

        * libdirac_encoder/quality_monitor.h: Broke up  extremely long
          function prototype into multiple lines

2004-10-20 18:24  asuraparaju

        * libdirac_encoder/quality_monitor.cpp: Introduced clipping of the
          feedback control signal to reduce overshoots due to inaccuracies
          in the model.

2004-10-20 18:23  asuraparaju

        * libdirac_decoder/: frame_decompress.cpp, frame_decompress.h:
          Fixed memory leak (Bug# 1044503)

2004-10-20 18:21  asuraparaju

        * libdirac_decoder/dirac_parser.cpp: Fixed memory leak (Bug#
          1044501)

2004-10-20 18:20  asuraparaju

        * libdirac_common/mot_comp.cpp: Fixed memory leak (Bug #1044499)

2004-10-20 18:18  asuraparaju

        * libdirac_common/band_codec.cpp: Added max value for the number of
          symbols to be accumulated between resets. Prevents overflow in
          the arithmetic coder.

2004-10-20 18:17  asuraparaju

        * encoder/encmain.cpp: Changed GOP structure for 720p to be 24,3
          not 24,6

2004-10-20 18:16  asuraparaju

        * decoder/decmain.cpp: Fixed memory leak caused by not freeing up
          frame buffer that was dynamically allocated

2004-09-21 14:02  asuraparaju

        * ChangeLog: Included details of checkins for 0.4.3 release

2004-09-21 13:58  asuraparaju

        * NEWS: Included 0.4.3 release notes

2004-09-21 13:45  asuraparaju

        * configure.ac: Updated release id to 0.4.3

2004-09-21 11:56  asuraparaju

        * encoder/encmain.cpp: Removed ambiguity between -HD720 and HD720p
          options.

2004-09-21 11:16  asuraparaju

        * util/instrumentation/libdirac_instrument/overlay.cpp: Fixed bug
          in setting x chroma factor for 4:1:1 input which caused the
          diagnostics tool to crash.

2004-09-21 11:15  asuraparaju

        * libdirac_motionest/: downconvert.cpp, downconvert.h: Fixed bug
          where downconverting a picture with odd valued dimensions.

2004-09-21 11:14  asuraparaju

        * libdirac_encoder/: quality_monitor.cpp, quality_monitor.h: Tidied
          and changed terminology to refer to quality rather than PSNR.

2004-09-21 11:14  asuraparaju

        * libdirac_common/: common.cpp, common.h: Fixed bug with block
          sizes for 411 coding.

2004-09-21 11:14  asuraparaju

        * doc/algorithm/: algorithm.htm, const_qual.htm, subband_rdo.htm:
          Added detail of the constant quality coding revisions. Updated
          version number.

2004-09-17 16:46  asuraparaju

        * libdirac_motionest/: block_match.cpp, me_mode_decn.cpp,
          me_subpel.cpp, me_subpel.h, motion_estimate.cpp: Changed
          structure to use a map for the different lambdas, which is
          encpasulated in the MEData structure. Limited size of motion
          vector costs to allow us to cope with motion transitions better.

2004-09-17 16:44  asuraparaju

        * libdirac_encoder/: comp_compress.cpp, frame_compress.cpp,
          quality_monitor.cpp, quality_monitor.h: Changed quality metric
          from PSNR to one based on 4th powers of errors, to give bigger
          weighting to large errors.

2004-09-17 16:43  asuraparaju

        * libdirac_common/: common.h, frame.cpp, frame_buffer.cpp,
          mot_comp.cpp, mot_comp.h, motion.cpp, motion.h,
          wavelet_utils.cpp: Fixed bug with scaling motion vectors for
          non-444 formats. Rationalised frame buffer functions. Added
          comments to common.h. General tidying up of code.

2004-09-10 14:13  asuraparaju

        * ChangeLog: Included details of recent checkins

2004-09-10 14:05  asuraparaju

        * NEWS: Included 0.4.2 release notes

2004-09-10 14:04  asuraparaju

        * configure.ac: Updated release id to 0.4.2

2004-09-10 12:34  asuraparaju

        * libdirac_common/pic_io.h, encoder/encmain.cpp: Ensure that the
          number of frame in the output pic header is set to the number of
          frames written to the file.

2004-09-10 11:06  asuraparaju

        * Makefile.am: Only Makefile and README from win directory are now
          included in distribution

2004-09-09 15:48  asuraparaju

        * util/instrumentation/: process_sequence.cpp,
          libdirac_instrument/draw_overlay.cpp,
          libdirac_instrument/draw_overlay.h,
          libdirac_instrument/overlay.cpp, libdirac_instrument/overlay.h:
          Fixed bug with handling reference 2 when only one reference frame
          is available

2004-09-09 15:43  asuraparaju

        * util/instrumentation/libdirac_instrument/split_mode.cpp: Fix
          writng beyond end of array bug which caused the diagnostics tool
          to crash when using split_mode.

2004-09-09 15:42  asuraparaju

        * util/instrumentation/README: Correct pathname to diagnostic tool

2004-09-09 15:41  asuraparaju

        * libdirac_encoder/seq_compress.cpp: Fixed bug with bit-rate being
          miscalculated when only a section of the sequence is encoded.

2004-09-09 15:40  asuraparaju

        * libdirac_encoder/frame_compress.cpp: Restored mod which outputs
          array dimensions for instrumentation output.

2004-09-09 15:39  asuraparaju

        * libdirac_common/wavelet_utils.cpp: Fixed bug with setting DC band
          perceptual weight.

2004-09-09 15:39  asuraparaju

        * encoder/encmain.cpp: Fixed bug with setting length of output
          sequence when coding a section of picture.

2004-09-09 15:38  asuraparaju

        * decoder/decmain.cpp: Print average frame decode time to stdout
          instead of stderr so that stderr can be monitored for errors in
          tests

2004-09-09 15:37  asuraparaju

        * configure.ac: Add diagnostic tool to test path

2004-09-09 15:36  asuraparaju

        * README.release: Add testing diagnostic tool to release checklist

2004-08-26 12:08  asuraparaju

        * ChangeLog: Updated with details of recent checkins

2004-08-26 12:05  asuraparaju

        * NEWS: Included 0.4.1 release notes

2004-08-26 12:02  asuraparaju

        * configure.ac: Updated release id to 0.4.1

2004-08-25 18:09  asuraparaju

        * ChangeLog: Updated this doc with details of recent checkins

2004-08-25 17:58  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          picheader/Makefile.am, unit_tests/Makefile.am,
          util/conversion/Makefile.am, util/conversion/common/Makefile.am,
          util/instrumentation/Makefile.am,
          util/instrumentation/libdirac_instrument/Makefile.am: Build under
          windows using gnu autotools, MSys as a shell and the no-cost MS
          VC++ 2003 compiler  now supported.

2004-08-25 17:56  asuraparaju

        * configure.ac: Fixed bug in configure where configure passed but
          make unit_tests failed when a version of cppunit older that
          1.10.2 is installed.      Build under windows using gnu
          autotools, MSys as a shell and MS C++ compiler 7.1 (free version)
          now supported.

2004-08-25 17:55  asuraparaju

        * tests/Makefile.am: Set up CLEANFILES to the files created by
          encoder and decoder so that they are deleted during 'make clean'
          instead of manually deleting them.

2004-08-25 17:54  asuraparaju

        * README.release: Added compile and test under windows using MSYS
          and cl to checklist Included updating project page on
          www.freshmeat.net in check list.  Corrected line numbering and
          added note to send email to dirac-announce mailing list.

2004-08-25 17:52  asuraparaju

        * README: Added a section on compiling using MSYS shell and VC++
          2003 compiler under windows. Replaced all tabas with spaces.
          Reformatted text to not exceed 80 chars per line.

2004-08-25 17:51  asuraparaju

        * doc/dirac_bitstream.txt: Fixed error concerning prefix codes.

2004-08-25 17:51  asuraparaju

        * encoder/encmain.cpp: Removed duplicate text output. Fixed char
          buffer overflow bug which causes encoder to fail when file name
          paths exceed 80 chars.

2004-08-25 17:50  asuraparaju

        * libdirac_common/common.h: Fixed bug where SeqParams.Interlace()
          was returning the chroma format instead of interlace.

2004-08-25 17:48  asuraparaju

        * libdirac_common/pic_io.cpp: Removed text output if we've run out
          of input.

2004-08-25 17:47  asuraparaju

        * libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/motion.h, libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/pixel_match.cpp: Modified motion estimation so
          that it's done on the uncompressed data.  Changed the ME
          utilities so that they compute SAD only. Modified mode decisions
          to restore weights applied to different levels of decomposition.
          Changed QualityMonitor class so that the internal model of rate
          versus distortion is effectively reset if we have to recode a
          frame. Fixed bug with measurement of PSNR.

2004-08-20 16:05  asuraparaju

        * tests/colourbars.at: Fix paths for out-of-tree builds

2004-08-19 15:27  asuraparaju

        * doc/api/dirac_api.doxygen: Include utilities in documentation

2004-08-19 14:55  asuraparaju

        * configure.ac: Update release id to 0.4.0

2004-08-19 13:32  asuraparaju

        * ChangeLog: Updated with details of recent checkins

2004-08-19 13:23  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          picheader/Makefile.am, tests/Makefile.am, unit_tests/Makefile.am,
          util/conversion/Makefile.am, util/conversion/common/Makefile.am,
          util/instrumentation/Makefile.am,
          util/instrumentation/libdirac_instrument/Makefile.am: Fixed build
          errors when compiling out of source tree. Out-of-source-tree
          builds are now successful.

2004-08-19 13:21  asuraparaju

        * NEWS: Included Alpha 0.4.0 release notes

2004-08-19 13:20  asuraparaju

        * decoder/decmain.cpp: Handling STATE_INVALID returned by parser.

2004-08-19 13:20  asuraparaju

        * encoder/encmain.cpp: Fixed bug with setting block sizes.

2004-08-19 13:19  asuraparaju

        * picheader/headmain.cpp:  Replace tabs with spaces. Fixed a
          character array overrun error.

2004-08-19 13:17  asuraparaju

        * util/instrumentation/README: Updated this document

2004-08-19 13:16  asuraparaju

        * win/Makefile: Updated Makefile to build correctly

2004-08-19 13:14  asuraparaju

        * TODO: Update todo list

2004-08-19 13:13  asuraparaju

        * README.release: Include tagging of files with release id in the
          checklist

2004-08-19 13:13  asuraparaju

        * README: Updated for 0.4.0 release

2004-08-19 13:12  asuraparaju

        * AUTHORS: Updated list of contributors

2004-08-19 13:11  asuraparaju

        * dirac.pc.in: Setting include and libs vars to correct values so
          that pkg-config shows the correct dependencies for Dirac.

2004-08-19 13:10  asuraparaju

        * configure.ac: Included additional condtional vars to check if
          documentation can be built successfully. Included
          -Wno-long-double flag on platforms where it is supported to
          prevent compile time warnings.

2004-08-19 13:08  asuraparaju

        * doc/: Makefile.am, api/Makefile.am, api/dirac_api.doxygen,
          api/dirac_api_foot.html, programmers/Makefile.am: Included
          additional condtional vars to check if documentation can be built
          successfully. Included dirac_bitstream.txt in distribution.

2004-08-19 13:06  asuraparaju

        * doc/algorithm/: algorithm.htm, rdo.htm, toc.htm,
          transform_coding.htm: Added links to constant quality encoding
          pages.

2004-08-19 13:04  asuraparaju

        * doc/algorithm/const_qual.htm: Added documentation on constant
          quality encoding.

2004-08-19 13:03  asuraparaju

        * doc/faq.htm: Added details on patent position. Fixed broken
          links. Minor text changes

2004-08-19 13:02  asuraparaju

        * doc/dirac_bitstream.txt: Initial bitstream syntax document for
          Dirac bitstream v0.1

2004-08-19 12:55  asuraparaju

        * util/instrumentation/: instrmain.cpp, process_sequence.cpp,
          process_sequence.h, libdirac_instrument/draw_overlay.cpp,
          libdirac_instrument/draw_overlay.h,
          libdirac_instrument/motion_arrows.cpp,
          libdirac_instrument/motion_arrows.h,
          libdirac_instrument/motion_colour.cpp,
          libdirac_instrument/motion_colour_arrows.cpp,
          libdirac_instrument/overlay.cpp,
          libdirac_instrument/pred_mode.cpp, libdirac_instrument/sad.cpp,
          libdirac_instrument/split_mode.cpp: Output all MEData members and
          cope with monochrome sequences Fixed block dimensions bug.  Fixed
          padded pictures bug.

2004-08-19 12:50  asuraparaju

        * libdirac_common/bit_manager.h, libdirac_common/common.h,
          libdirac_decoder/dirac_cppparser.cpp,
          libdirac_decoder/dirac_cppparser.h,
          libdirac_decoder/dirac_parser.cpp,
          libdirac_decoder/dirac_parser.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/seq_decompress.cpp: Bitstream v0.1 related
          changes - Handling new start codes and bitstream version

2004-08-19 12:46  asuraparaju

        * libdirac_motionest/: me_mode_decn.cpp, me_utils.cpp,
          motion_estimate.cpp, pixel_match.cpp: Tiffled motion estimation
          parameters to improve performance.

2004-08-19 12:45  asuraparaju

        * libdirac_common/arith_codec.h: Minor mods to fix compile time
          errors

2004-08-19 12:45  asuraparaju

        * libdirac_common/dirac_assertions.h: New debug test macros TEST,
          TESTM, REPORT and REPORTM

2004-08-19 12:44  asuraparaju

        * libdirac_common/: motion.cpp, motion.h: Instrumentation update:
          outputs all MEData members and copes with monochrome sequences

2004-08-19 12:43  asuraparaju

        * libdirac_common/: mot_comp.cpp, pic_io.cpp, wavelet_utils.cpp:
          Cleansed code

2004-08-19 12:40  asuraparaju

        * libdirac_encoder/: frame_compress.cpp, quality_monitor.cpp,
          quality_monitor.h, seq_compress.cpp: Handling new start codes and
          bitstream version.  Fixed bug in quality monitor code where
          padding area was taken into account in calculating PSNR. Removed
          unused code for calculating weighted PSNR.  Removed commented
          output from quality monitor.  Instrumentation update: outputs all
          MEData members and copes with monochrome sequences.

2004-08-11 16:30  asuraparaju

        * ChangeLog: Update this log with details recent checkins

2004-08-11 16:23  asuraparaju

        * tests/Makefile.am: Deleting data files created by encode and
          decode operation durng cleanup.

2004-08-11 15:53  asuraparaju

        * decoder/decmain.cpp: Decoder modified to use the "C" interface.

2004-08-11 15:53  asuraparaju

        * encoder/encmain.cpp: Added support for cut-detection and intra
          frame insertion. Changed output structure to output frame by
          frame, and added recoding to exploit this.  Recoding takes place
          if quality is not within a range of the target quality.

          Replaced tabs with spaces.

          Updated data file extension

2004-08-11 15:48  asuraparaju

        * libdirac_encoder/: Makefile.am, frame_compress.cpp,
          frame_compress.h, quality_monitor.cpp, quality_monitor.h,
          seq_compress.cpp, seq_compress.h: Fixed the bug where all header
          files were being dumped into the same install directory. Now
          headers are copied into the <installdir>/dirac/<module>
          directory.

          Added support for cut-detection and intra frame insertion.
          Changed output structure to output frame by frame, and added
          recoding to exploit this.  Recoding takes place if quality is not
          within a range of the target quality.

          Writing frame start, sequence start and sequence end codes to
          bitstream.

          Modifications to build under WIN32

2004-08-11 15:44  asuraparaju

        * libdirac_decoder/: Makefile.am, frame_decompress.cpp,
          frame_decompress.h, seq_decompress.cpp, seq_decompress.h:
          Handling new "C" interface files.  Handling bitstream changes in
          frame and sequence decompress routines.  Fixed the bug where all
          header files were being dumped into the same install directory.
          Now headers are copied into the
          <installdir>/dirac/libdirac_decoder

2004-08-11 15:40  asuraparaju

        * libdirac_common/: Makefile.am, arith_codec.h, arrays.h,
          band_codec.cpp, band_codec.h, bit_manager.cpp, bit_manager.h,
          common.cpp, common.h, frame.cpp, frame.h, frame_buffer.cpp,
          mot_comp.cpp, motion.cpp, mv_codec.cpp, mv_codec.h, pic_io.cpp,
          pic_io.h: Renamed BitOutputManager to UnitOutputManager in
          bit_manager.* Modified bit_manager.* to handle modifications to
          bitstream.  Moved enumerated types common to the encoder, decoder
          and codec interfaces from common.h into common_types.h to avoid
          duplication of declarations.

          Added support for cut-detection and intra frame insertion.
          Changed output structure to output frame by frame, and added
          recoding to exploit this.  Recoding takes place if quality is not
          within a range of the target quality.

          Modifications to build under WIN32 Fixed icc compiler warning 522
          Fixed VC++ 2003 compiler warnings

          Fixed the bug where all header files were being dumped into the
          same install directory. Now headers are copied into the <install
          dir>/dirac/libdirac_common directory.

2004-08-11 15:30  asuraparaju

        * libdirac_motionest/: Makefile.am, me_mode_decn.cpp,
          me_subpel.cpp, motion_estimate.cpp, motion_estimate.h: Minor mods
          to improve motion estimation: no lambda-smoothing on
          pixel-accurate ME.  Fixed the bug where all header files were
          being dumped into the same install directory. Now headers are
          copied into the <install dir>/dirac/libdirac_motionest
          directory..

2004-08-11 15:27  asuraparaju

        * util/instrumentation/: Makefile.am, instrmain.cpp,
          process_sequence.cpp, process_sequence.h,
          libdirac_instrument/overlay.h: Restructured the code. Corrected
          header file path in instrmain.cpp.  Added a ProcessSequence
          class. File extension of motion vector instrumentation file
          changed from _mvdata to .imt

2004-08-11 15:24  asuraparaju

        * tests/: Makefile.am, colourbars.at: Deleting instrumentation
          files during clean up.  Ignoring stdout and stderr when running
          decoder.

2004-08-11 15:23  asuraparaju

        * win/Makefile: Fixed VC++ 2003 compile and link errors

2004-08-11 15:21  asuraparaju

        * libdirac_common/: dirac_assertions.cpp, dirac_assertions.h: Added
          functions for runtime testing in debug mode. Two new macros are
          defined.

          ASSERT( exp ) - if exp resolves to false, the program prints the
          line number and file where the assertion failure occured. In
          debug mode the program exits immediately dumping core.

          ASSERT( exp, mesg ) - if exp resolves to false, the program
          prints the line number, file name where the assertion failure
          occured and mesg. In debug mode the program exits immediately

2004-08-11 15:20  asuraparaju

        * libdirac_common/common_types.h: Moved enumerated types common to
          the encoder, decoder and codec interfaces from common.h into this
          file to avoid duplication of declarations.

2004-08-11 15:16  asuraparaju

        * libdirac_decoder/: decoder_types.h, dirac_cppparser.cpp,
          dirac_cppparser.h, dirac_parser.cpp, dirac_parser.h: These new
          files define the  "C" interface to the decoder. The bitstream has
          been modified to be able to parse it for decoding.

          BitStream Changes:

          The new dirac bit stream is as follows <sequence-start-code>
          <sequence header> <frame-start-code> <frame 1 data> .  .  .
          <frame-start-code> <frame n data> <sequence-end-code>

          Sequence start code: Each sequence begins with a 5 bytes start
          code 0x01 0x02 0x03 0x04 0xB3

          Frame start code: Each frame begins with a 5 bytes frame start
          code  0x01 0x02 0x03 0x04 0xB4

          Sequence End code: Each sequence ends with a 5 bytes sequence end
          code 0x01 0x02 0x03 0x04 0xB7

          Not a start code flag: If the arithmetic codec ouputs the start
          code prefix 0x01 0x02 0x03 0x04, 0xFF is inserted into the
          bitstream to flag that this is the output of the Arithmetic codec
          and not a start code.

2004-08-11 14:27  asuraparaju

        * configure.ac: Added a new option --enable-profile to include the
          profiling option -pg to them compile line. Setting up CXXFLAGS
          correctly for Intel compiler when the --enable-debug option is
          used.

2004-08-11 14:26  asuraparaju

        * README.release: A checklist for producing a new release

2004-08-03 10:32  asuraparaju

        * ChangeLog: Updated this log with details of recent checkins

2004-08-03 10:22  asuraparaju

        * Makefile.am, configure.ac, dirac.pc.in, decoder/decmain.cpp,
          encoder/encmain.cpp, libdirac_common/Makefile.am,
          libdirac_common/arrays.h, libdirac_common/bit_manager.cpp,
          libdirac_common/bit_manager.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_encoder/Makefile.am, libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h, libdirac_motionest/Makefile.am,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h,
          libdirac_motionest/pixel_match.cpp,
          libdirac_motionest/pixel_match.h: libdirac_common,
          libdirac_encoder, encoder:     Incorporated diagnostic tool

          libdirac_common, libdirac_encoder, libdirac_motionest:     Added
          lifting classes for wavelet transform. Refactored motion
          estimation to make logic clearer, and added separate
          pixel-accurate matching classes.  Put in a longer temporal filter
              in QualityMonitor class to reduce oscillation and changed
          motion     estimation Lagrangian parameter to improve
          performance.  TO DO:     tune ME parameter for each picture
          size/block size combination.

          libdirac_common:     Corrected bug with lifting functions not
          returning a value.      Modified MvData class to make member
          variables private.

          libdirac_encoder:     Modified ME lambda value to improve
          performance.

          libdirac_decode, libdirac_encoder, libdirac_motionest,
          libdirac_common:     Modified MvData class to make member
          variables private. Created     MEData class as a subclass of
          MvData for use in motion estimation.

          libdirac_commonm libdirac_encoder:     Refactored output classes
          to create classes for unit, frame and     sequence output, where
          a unit is a subband or MV data, and consists of     a header and
          subsequent data. Output can only be effected at the     sequence
          level and occurs only after a whole frame of data has been
          accumulated.  This will allow for frames to be re-coded before
          being     output if their quality is not satisfactory.

2004-08-03 10:07  asuraparaju

        * util/: Makefile.am, instrumentation/Makefile.am,
          instrumentation/README, instrumentation/instrmain.cpp,
          instrumentation/libdirac_instrument/Makefile.am,
          instrumentation/libdirac_instrument/draw_overlay.cpp,
          instrumentation/libdirac_instrument/draw_overlay.h,
          instrumentation/libdirac_instrument/motion_arrows.cpp,
          instrumentation/libdirac_instrument/motion_arrows.h,
          instrumentation/libdirac_instrument/motion_colour.cpp,
          instrumentation/libdirac_instrument/motion_colour.h,
          instrumentation/libdirac_instrument/motion_colour_arrows.cpp,
          instrumentation/libdirac_instrument/motion_colour_arrows.h,
          instrumentation/libdirac_instrument/overlay.cpp,
          instrumentation/libdirac_instrument/overlay.h,
          instrumentation/libdirac_instrument/overlay_symbols.cpp,
          instrumentation/libdirac_instrument/overlay_symbols.h,
          instrumentation/libdirac_instrument/pred_mode.cpp,
          instrumentation/libdirac_instrument/pred_mode.h,
          instrumentation/libdirac_instrument/sad.cpp,
          instrumentation/libdirac_instrument/sad.h,
          instrumentation/libdirac_instrument/split_mode.cpp,
          instrumentation/libdirac_instrument/split_mode.h: Adding
          instrumentation tool

2004-07-16 17:05  asuraparaju

        * ChangeLog: Updated thislog with details of recent checkins

2004-07-16 16:29  asuraparaju

        * libdirac_encoder/quality_monitor.cpp: Fixed bug with model
          updating - limits of slope of linear model were inaccurate. Fixed
          bug with numerical stability of lambda re-calculation.
          Performance with cuts or shot-changes is still poor, however.

2004-07-16 16:23  asuraparaju

        * DCO.developers, README.developers: Added contents section. Added
          text about licensing and contribution.  Modified licensing
          requirements so that contributors contribute under Mozilla too.
          Added Developers Certificate of Origin, which developers are to
          sign before their work is included.

2004-07-12 12:23  asuraparaju

        * ChangeLog: Updated this log with details of most recent checkins

2004-07-12 11:59  asuraparaju

        * libdirac_common/arrays.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h, libdirac_common/bit_manager.cpp,
          libdirac_common/bit_manager.h, libdirac_common/cmd_line.cpp,
          libdirac_common/cmd_line.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/frame.cpp,
          libdirac_common/frame.h, libdirac_common/frame_buffer.cpp,
          libdirac_common/frame_buffer.h, libdirac_common/golomb.cpp,
          libdirac_common/golomb.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.cpp,
          libdirac_common/upconvert.cpp, libdirac_common/upconvert.h,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h: Changed order of
          initialisation parameters for TwoDArray template class and
          subclass PicArray.  Tidied TwoDArray and OneDArray classes.
          Removed all use of allocators. Replaced tabs with spaces in
          libdirac_common. Fixed minor bug in quality_monitor PSNR
          measurement.  Made other typographical changes.

2004-07-12 11:53  asuraparaju

        * Makefile.am, configure.ac, tests/Makefile.am, tests/testsuite.at,
          tests/unittests.at, unit_tests/Makefile.am,
          unit_tests/arrays_test.cpp, unit_tests/arrays_test.h,
          unit_tests/core_suite.h, unit_tests/cppunit_testsuite.cpp,
          unit_tests/utmain.cpp: Added a unit test framework based on
          Cppunit. The unit tests will reside in the directory unit_tests.
          'make check' command will now run the unit tests as well.
          Currently unit test exists only for the TwoDArrays class. More
          tests will be added in future.

2004-07-06 12:51  asuraparaju

        * ChangeLog: Update this log with details of mostrecent checkins

2004-07-06 12:26  asuraparaju

        * Makefile.am, README, encoder/encmain.cpp,
          libdirac_common/arith_codec.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/frame.cpp,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/mot_comp.cpp, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/pic_io.cpp,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/Makefile.am, libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/quality_monitor.cpp,
          libdirac_encoder/quality_monitor.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_subpel.cpp,
          libdirac_motionest/me_utils.cpp,
          libdirac_motionest/motion_estimate.cpp, tests/colourbars.at:
          README: Removed discussion of Iqf, L1qf and L2qf. Added text
             explaining constant- quality encoding using -qf.

          Makefile.am: Changed order of make, so that utilities can use the
                  common (and other) libraries.

          libdirac_common:     Changed EncoderParams to include a quality
            parameter for constant-quality encoding. Changed perceptual
          weighting to use an extension of CCIR 959 weights, with extra
          weight for DC band, and lower weights for chroma bands.

              Modified enumerated type CompSort to avoid name clashes by
          using
              longer names. Refactored OLBParams class to have private
          member variables
              and access functions.

          libdirac_encoder:     Added QualityMonitor class to do
          constant-quality     encoding. Class looks at difference between
          locally decoded and     original frames and adjusts Lagrangian
          parameters appropriately.      Simplified interface for encoding
          results, where a single quality      parameter is specified.

          libdirac_decoder     FrameDecompressor::Decompress now returns
          true upon success and false     upon failure.

          encoder/encmain.cpp:     Simplified interface for encoding
          results, where a single quality     parameter is specified.

2004-07-02 14:46  asuraparaju

        * ChangeLog: Updated this log with details about recent checkins

2004-06-30 17:53  asuraparaju

        * README.developers: Removed dollar signs around CVS tags which
          cause them to be expanded

2004-06-30 17:44  asuraparaju

        * AUTHORS, README, README.developers, configure.ac,
          decoder/decmain.cpp, encoder/encmain.cpp,
          libdirac_common/Makefile.am, libdirac_common/arith_codec.h,
          libdirac_common/arrays.h, libdirac_common/band_codec.cpp,
          libdirac_common/band_codec.h, libdirac_common/bit_manager.cpp,
          libdirac_common/bit_manager.h, libdirac_common/cmd_line.cpp,
          libdirac_common/cmd_line.h, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/context.h,
          libdirac_common/frame.cpp, libdirac_common/frame.h,
          libdirac_common/frame_buffer.cpp, libdirac_common/frame_buffer.h,
          libdirac_common/golomb.cpp, libdirac_common/golomb.h,
          libdirac_common/mot_comp.cpp, libdirac_common/mot_comp.h,
          libdirac_common/motion.cpp, libdirac_common/motion.h,
          libdirac_common/mv_codec.cpp, libdirac_common/mv_codec.h,
          libdirac_common/pic_io.cpp, libdirac_common/pic_io.h,
          libdirac_common/upconvert.cpp, libdirac_common/upconvert.h,
          libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h, picheader/headmain.cpp,
          util/conversion/BMPtoRGB.cpp, util/conversion/RGBtoBMP.cpp,
          util/conversion/RGBtoUYVY.cpp, util/conversion/RGBtoYUV411.cpp,
          util/conversion/RGBtoYUV420.cpp, util/conversion/RGBtoYUV422.cpp,
          util/conversion/RGBtoYUV444.cpp, util/conversion/UYVYtoRGB.cpp,
          util/conversion/YUV411toRGB.cpp, util/conversion/YUV420toRGB.cpp,
          util/conversion/YUV422toRGB.cpp, util/conversion/YUV444toRGB.cpp,
          util/conversion/common/bitmap.cpp,
          util/conversion/common/bitmap.h,
          util/conversion/common/setstdiomode.cpp,
          util/conversion/common/setstdiomode.h: -  Included a coding style
          guidelines sub-section (Coding Style) in    README.developers
          under the section 'Software Practices'. This    sub-section
          describes the coding guidelines for developers and is to be used
            as a reference by developers while writing code and while
          peer-reviewing    code.

          -  Removed the following CVS tags from all files    $Author$
          $Log$
          Revision 1.28  2008-06-04 05:39:17  asuraparaju
          *** empty log message ***

          Revision 1.27  2008/05/30 06:33:56  asuraparaju
          *** empty log message ***
        
          Revision 1.26  2008/01/26 12:11:44  asuraparaju
          *** empty log message ***
        
          Revision 1.25  2008/01/23 01:17:25  asuraparaju
          *** empty log message ***
        
          Revision 1.24  2007/10/01 10:57:15  asuraparaju
          *** empty log message ***
        
          Revision 1.23  2007/05/09 14:06:51  asuraparaju
          *** empty log message ***
        
          Revision 1.22  2007/03/22 18:27:16  davidf_
          Altered command line file handling.  a) now support taking input from stdin
          (input specified as '-' or '/dev/stdin').  b) removed strange filename
          extension stripping/appending for primary input and output files (locally
          decoded video and instrumentation are outputfilename.{local-dec.yuv,imt}.
        
          Revision 1.21  2006/11/13 12:28:22  tjdwave
          *** empty log message ***
            $Revision$

          -  Included the following CVS tags in all source and header files
             $Id$    $Name$

          -  Included a new configuration option, --enable-debug, in
          configure.ac. This    option turns on the flags '-Wall -pedantic
          -Werror' to trap warnings.

          -  Modified parameter classes in common.{h,cpp} to make member
          variables    private and accessible through class methods. Traced
          through codec.

          -  Deleted context.h. The classes that were originally in this
          file have been    integrated as nested classes into ArithCodec
          class in arith_codec.h

          -  Fixed bug on QCIF coding. The number of downconversions during
             hierarchical motion estimation is now limited based on the
          size of the    picture

          -  Changed decoder and encoder params to be references throughout
          frame and    component (de)compression rather than being copied.

          -  Code cleansed to follow coding standards specified in
          README.developers.     - Changed names of member variables to use
          m_ convention     - Used spaces to improve readability of code
           - Accessing class member variables through accessor/mutator
          function rather       than directly     - Non-trivial member
          functions moved from headers to .cpp files

             Changes mainly in the following directories:
             libdirac_common
             libdirac_decoder
             libdirac_encoder

          -  Fixed g++ compiler warnings

2004-06-22 11:10  asuraparaju

        * libdirac_common/wavelet_utils.h: Modified doxygen comments to
          match the declaration of member function SetBandWeights in class
          WaveletTransform.

2004-06-22 11:08  asuraparaju

        * encoder/encmain.cpp: Fixed compilation errors caused by trying to
          access non-existent cformat data member in class EncoderParams.

2004-06-18 16:58  tjdwave

        * libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/frame.cpp, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_common/motion.cpp, libdirac_common/motion.h: Removed
          chroma format parameter cformat from CodecParams and derived
          classes to avoid duplication. Made consequential minor mods to
          seq_{de}compress and frame_{de}compress code.  Revised motion
          compensation to use built-in arrays for weighting matrices and to
          enforce their const-ness.  Removed unnecessary memory
          (de)allocations from Frame class copy constructor and assignment
          operator.

2004-06-16 17:06  asuraparaju

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          util/conversion/Makefile.am, util/conversion/common/Makefile.am:
          Enable dependency tracking by removing the macro AUTOMAKE_OPTIONS
          = no-dependencies from Makefile.am

2004-06-16 09:25  tjdwave

        * doc/algorithm/: algorithm.htm, toc.htm: Corrected link in TOC.
          Put correct date in main page.

2004-06-08 17:18  timborer

        * NEWS: Updated release notes for version 0.3.1

2004-06-08 17:03  timborer

        * configure.ac, libdirac_common/golomb.cpp,
          libdirac_common/mv_codec.h, libdirac_motionest/block_match.cpp,
          util/conversion/BMPtoRGB.cpp, util/conversion/RGBtoBMP.cpp,
          util/conversion/RGBtoUYVY.cpp, util/conversion/RGBtoYUV411.cpp,
          util/conversion/RGBtoYUV420.cpp, util/conversion/RGBtoYUV422.cpp,
          util/conversion/RGBtoYUV444.cpp, util/conversion/UYVYtoRGB.cpp,
          util/conversion/YUV411toRGB.cpp, util/conversion/YUV420toRGB.cpp,
          util/conversion/YUV422toRGB.cpp, util/conversion/YUV444toRGB.cpp,
          util/conversion/common/bitmap.cpp,
          util/conversion/common/bitmap.h,
          util/conversion/common/setstdiomode.cpp,
          util/conversion/common/setstdiomode.h, win/Makefile: Files
          updated so that code compiles under Windows (previously broken
          under Windows).  Colour matrix coefficients corrected in video
          conversion utilities Video conversion utilites now build with the
          rest of the code.

2004-06-03 14:07  stuart_hc

        * README.developers: Added Profiling & optimisation section.

2004-05-28 16:05  tjdwave

        * NEWS, TODO: Added information about picture format conversion
          utilities. Removed frame padding from the TODO list.

2004-05-28 15:58  tjdwave

        * README: Added text on how to use the conversion utilities to
          provide test material for Dirac.

2004-05-28 15:27  tjdwave

        * util/conversion/: BMPtoRGB.cpp, Makefile.am, RGBtoBMP.cpp,
          RGBtoUYVY.cpp, RGBtoYUV411.cpp, RGBtoYUV420.cpp, RGBtoYUV422.cpp,
          RGBtoYUV444.cpp, UYVYtoRGB.cpp, YUV411toRGB.cpp, YUV420toRGB.cpp,
          YUV422toRGB.cpp, YUV444toRGB.cpp: Initial commit of command-line
          tools for converting between uncompressed picture formats. All
          conversions use uncompressed RGB as an intermediate format.
          There is a known bug with the colour matrixing which applies a
          gain when going from YUV to RGB and back again. This will be
          fixed in a subsequent release.

2004-05-28 15:18  tjdwave

        * util/conversion/common/: bitmap.cpp, bitmap.h, setstdiomode.cpp,
          setstdiomode.h: Initial commit. Common tools for handling BMP
          headers and stdio handling for Windows.

2004-05-28 15:15  tjdwave

        * util/conversion/common/Makefile.am: Initial commit. Builds common
          library for use by all the conversion routines.

2004-05-28 15:14  tjdwave

        * util/conversion/Makefile.am: Initial commit. Builds file
          conversion utilities.

2004-05-28 15:12  tjdwave

        * util/Makefile.am: Added Makefile to build utility subdirectories.

2004-05-28 15:10  tjdwave

        * Makefile.am, configure.ac: Updated to add utilities directory.

2004-05-27 14:58  asuraparaju

        * configure.ac, doc/Makefile.am, doc/algorithm/Makefile.am,
          doc/api/Makefile.am, doc/programmers/Makefile.am: Corrected API
          and programmer doc build and installation.  Added algorithm doc
          install (from CVS only - not distribution).

2004-05-27 13:21  stuart_hc

        * README.developers: Prevent unintended expansion of $Id$ and $Log: ChangeLog,v $
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.27  2008/05/30 06:33:56  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.26  2008/01/26 12:11:44  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.25  2008/01/23 01:17:25  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.24  2007/10/01 10:57:15  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.23  2007/05/09 14:06:51  asuraparaju
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.22  2007/03/22 18:27:16  davidf_
        * README.developers: Prevent unintended expansion of $Id$ and Altered command line file handling.  a) now support taking input from stdin
        * README.developers: Prevent unintended expansion of $Id$ and (input specified as '-' or '/dev/stdin').  b) removed strange filename
        * README.developers: Prevent unintended expansion of $Id$ and extension stripping/appending for primary input and output files (locally
        * README.developers: Prevent unintended expansion of $Id$ and decoded video and instrumentation are outputfilename.{local-dec.yuv,imt}.
        * README.developers: Prevent unintended expansion of $Id$ and
        * README.developers: Prevent unintended expansion of $Id$ and Revision 1.21  2006/11/13 12:28:22  tjdwave
        * README.developers: Prevent unintended expansion of $Id$ and *** empty log message ***
        * README.developers: Prevent unintended expansion of $Id$ and
          in description of keywords.

2004-05-27 13:14  stuart_hc

        * README.developers: Added section on the testsuite and on binary
          files.

2004-05-27 09:02  tjdwave

        * doc/programmers/: programmers_guide.dvi, programmers_guide.log:
          Removed LaTeX-generated .dvi and .log files from CVS control.

2004-05-27 09:00  tjdwave

        * doc/: algorithm/algorithm.htm, algorithm/var_size.htm,
          algorithm/wlt_transform.htm, programmers/programmers_guide.dvi,
          programmers/programmers_guide.log: Updated docs to take into
          account that Dirac does edge-padding, not padding with black, in
          order to avoid significant artefacts at low bit-rate.

2004-05-26 17:01  tjdwave

        * configure.ac, doc/Makefile.am, doc/faq.htm,
          doc/algorithm/algorithm.htm, doc/algorithm/block_data.htm,
          doc/algorithm/intra_pred.htm, doc/algorithm/intro.htm,
          doc/algorithm/mb_structs.htm, doc/algorithm/mot_est.htm,
          doc/algorithm/mot_est_and_comp.htm,
          doc/algorithm/mv_coding_arch.htm,
          doc/algorithm/mv_data_coding.htm, doc/algorithm/mv_data_pred.htm,
          doc/algorithm/mv_entropy_code.htm, doc/algorithm/olb_mc.htm,
          doc/algorithm/overall_arch.htm, doc/algorithm/parent_child.htm,
          doc/algorithm/quantisation.htm, doc/algorithm/rdo.htm,
          doc/algorithm/rdo_mot_est.htm, doc/algorithm/subband_rdo.htm,
          doc/algorithm/temporal_prediction_structures.htm,
          doc/algorithm/toc.htm, doc/algorithm/transform_coding.htm,
          doc/algorithm/transform_coding_arch.htm,
          doc/algorithm/var_size.htm, doc/algorithm/wlt_coeff_coding.htm,
          doc/algorithm/wlt_transform.htm, doc/algorithm/figs/DC.jpg,
          doc/algorithm/figs/DCSAD.jpg, doc/algorithm/figs/braces.jpg,
          doc/algorithm/figs/d.jpg, doc/algorithm/figs/eqA.jpg,
          doc/algorithm/figs/eqB.jpg, doc/algorithm/figs/eqC.jpg,
          doc/algorithm/figs/eqD.jpg, doc/algorithm/figs/eqE.jpg,
          doc/algorithm/figs/eqF.jpg, doc/algorithm/figs/eqG.jpg,
          doc/algorithm/figs/eqH.jpg, doc/algorithm/figs/eqI.jpg,
          doc/algorithm/figs/eqJ.jpg, doc/algorithm/figs/fig1.jpg,
          doc/algorithm/figs/fig10.jpg, doc/algorithm/figs/fig12.jpg,
          doc/algorithm/figs/fig13.jpg, doc/algorithm/figs/fig14.jpg,
          doc/algorithm/figs/fig15.jpg, doc/algorithm/figs/fig16.jpg,
          doc/algorithm/figs/fig17.jpg, doc/algorithm/figs/fig18.jpg,
          doc/algorithm/figs/fig19.jpg, doc/algorithm/figs/fig2.jpg,
          doc/algorithm/figs/fig20.jpg, doc/algorithm/figs/fig21.jpg,
          doc/algorithm/figs/fig22.jpg, doc/algorithm/figs/fig23.jpg,
          doc/algorithm/figs/fig24.jpg, doc/algorithm/figs/fig26.jpg,
          doc/algorithm/figs/fig27.jpg, doc/algorithm/figs/fig3.jpg,
          doc/algorithm/figs/fig4.jpg, doc/algorithm/figs/fig5.jpg,
          doc/algorithm/figs/fig6.jpg, doc/algorithm/figs/fig7.bmp,
          doc/algorithm/figs/fig7.jpg, doc/algorithm/figs/fig8.jpg,
          doc/algorithm/figs/fig9.jpg, doc/algorithm/figs/fp.jpg,
          doc/algorithm/figs/m.jpg, doc/algorithm/figs/nhood.jpg,
          doc/algorithm/figs/nhoodresidue.jpg, doc/algorithm/figs/p.jpg,
          doc/algorithm/figs/p2.jpg, doc/algorithm/figs/t.jpg,
          doc/algorithm/figs/two.jpg, doc/algorithm/figs/var.jpg,
          doc/algorithm/figs/vtilda.jpg, doc/algorithm/figs/vw.jpg,
          doc/api/Makefile.am, doc/api/dirac_api.doxygen,
          doc/api/dirac_api.doxygen.in, doc/api/dirac_api_foot.html,
          doc/api/dirac_api_head.html,
          doc/api/libdirac_encoder_api.doxygen,
          doc/api/libdirac_encoder_api_foot.html,
          doc/api/libdirac_encoder_api_head.html,
          doc/programmers/Makefile.am,
          doc/programmers/programmers_guide.aux,
          doc/programmers/programmers_guide.dvi,
          doc/programmers/programmers_guide.log,
          doc/programmers/programmers_guide.tex: Added algorithm
          documentation and FAQ. Changed name of Scott Ladd's programmers
          guide to programmers_guide.tex from dirac_algor.tex to clarify
          purpose. Created individual subdirectories for algorithm, api and
          programmers guide docs. Modified make files and configure.ac
          appropriately.

2004-05-26 16:44  tjdwave

        * doc/: dirac_algor.tex, dirac_api.doxygen, dirac_api.doxygen.in,
          dirac_api_foot.html, dirac_api_head.html,
          libdirac_encoder_api.doxygen, libdirac_encoder_api_foot.html,
          libdirac_encoder_api_head.html: Removed old documentation
          structure. New doc structure to be put in place.

2004-05-26 16:18  tjdwave

        * libdirac_decoder/seq_decompress.cpp: Corrected behaviour at end
          of stream, so that decoder freezes on the last frame.

2004-05-26 15:33  tjdwave

        * libdirac_encoder/comp_compress.cpp,
          libdirac_common/band_codec.cpp,
          libdirac_decoder/comp_decompress.cpp: Updated default DC
          prediction value to take into account the removal of scaling from
          the wavelet transform.

2004-05-26 15:31  tjdwave

        * libdirac_common/wavelet_utils.h: Added doxygen comments to
          describe how perceptual weighting now incorporates scaling
          factors from the scaling.

2004-05-25 16:30  tjdwave

        * libdirac_common/wavelet_utils.cpp: Removed scaling from the
          wavelet transform. Scaling is now incorporated into perceptual
          weighting; the wavelet transform is now exactly invertible.

2004-05-25 10:49  tjdwave

        * libdirac_common/pic_io.cpp: Fixed bug where coder segfaulted on
          reading.

2004-05-25 03:39  chaoticcoyote

        * ChangeLog, libdirac_common/frame.h, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_encoder/seq_compress.h,
          libdirac_motionest/me_utils.cpp: Unnecessary qualification of
          some class members in frame.h and pic_io.h.  ISO C++ forbids
          variable-size automatic arrays; fixed in pic_io.cpp Removed
          spurious semi-colons in me_utils.cpp Fixed out-of-order member
          constructors in seq_compress.h

2004-05-24 17:03  tjdwave

        * libdirac_decoder/: frame_decompress.cpp, frame_decompress.h,
          seq_decompress.cpp: Support for IO error handling. Decoder
          freezes on last frame if out of data.

2004-05-24 16:57  tjdwave

        * picheader/headmain.cpp, encoder/encmain.cpp, decoder/decmain.cpp:
          Changed CLI names and functions to house style.

2004-05-24 16:55  tjdwave

        * libdirac_common/: cmd_line.cpp, cmd_line.h: Modified class name
          to fit house style: ClassName, not class_name.

2004-05-24 16:53  tjdwave

        * libdirac_common/: pic_io.cpp, pic_io.h: Added error handling: IO
          functions now return boolean values.

2004-05-24 16:52  tjdwave

        * tests/colourbars.at: Fixed test so that header file has correct
          zlength=1.

2004-05-24 16:51  tjdwave

        * Makefile.am: Switched order so that docs are builts last.

2004-05-24 13:38  tjdwave

        * libdirac_common/mot_comp.cpp, libdirac_common/mot_comp.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h:
          Replaced spagetti code for linear interpolation in motion
          compensation and motion estimation routines with simple loops.
          Code is much clearer, although possibly slightly slower.

2004-05-21 18:46  asuraparaju

        * Makefile.am, configure.ac, tests/Makefile.am,
          tests/colourbars.at, tests/colourbars_420.yuv,
          tests/testsuite.at: Initial support for autotest testsuite (run
          "make check").

2004-05-21 17:27  stuart_hc

        * README.developers: Initial revision of software practice
          guidelines for CVS developers.

2004-05-21 15:17  tjdwave

        * libdirac_common/mot_comp.cpp: Fixed bug with erroneous linear
          interpolation for sub-pixel values.

2004-05-20 13:44  tjdwave

        * README: Minor edit of example of making a header, to reflect the
          new CLI.

2004-05-20 13:39  tjdwave

        * picheader/headmain.cpp: Fixed help message for CLI.

2004-05-20 13:38  tjdwave

        * decoder/decmain.cpp: Fixed minor bug with -verbose option to make
          it true boolean.

2004-05-20 13:37  tjdwave

        * encoder/encmain.cpp: Corrected help text for CLI.

2004-05-20 11:50  stuart_hc

        * doc/dirac_api.doxygen, doc/dirac_api_foot.html,
          doc/dirac_api_head.html, doc/libdirac_encoder_api_foot.html,
          doc/libdirac_encoder_api_head.html,
          libdirac_common/band_codec.cpp: Corrected CRLF line-endings to LF
          for consistency.

2004-05-20 11:35  stuart_hc

        * NEWS: Added mention of libtool removal, slight rearrangement for
          clarity.  Corrected CRLF line-endings to LF.

2004-05-20 11:31  stuart_hc

        * README: Fixed incorrect interlace argument in DV transcode
          example.  Minor grammatical errors fixed.

2004-05-19 23:08  chaoticcoyote

        * README: Updated for changes in command-line parser

2004-05-19 23:00  chaoticcoyote

        * AUTHORS: Added my middle name to credits Corrected company name

2004-05-19 18:39  chaoticcoyote

        * decoder/decmain.cpp, encoder/encmain.cpp,
          libdirac_common/cmd_line.cpp, libdirac_common/cmd_line.h,
          picheader/headmain.cpp: Modified command line parser to correctly
          handle boolean options

2004-05-19 17:27  stuart_hc

        * README: Added example usage for MPlayer, display (ImageMagick),
          and transcode.  Reformatted all example commands to be indented
          for clarity.

2004-05-19 16:51  tjdwave

        * NEWS: More details for 0.3.0 release

2004-05-19 15:29  tjdwave

        * NEWS: Include release notes for 0.2.0 & 0.3.0

2004-05-19 15:19  tjdwave

        * TODO: Removed mention of frame buffer class, since now complete.

2004-05-19 15:14  tjdwave

        * AUTHORS: Added contributers.

2004-05-19 15:04  tjdwave

        * libdirac_common/pic_io.cpp: Changed YUV output to output lines
          instead of bytes, according to patch provided by Malcolm Parsons

2004-05-19 10:16  tjdwave

        * libdirac_common/: mot_comp.cpp, pic_io.cpp: Replaced zero-padding
          with edge-padding to eliminate colour-fringeing at low bitrates.
          Mod to set padded values to 0 when compensating frames.

2004-05-18 08:46  tjdwave

        * README, encoder/encmain.cpp, libdirac_common/frame_buffer.cpp,
          libdirac_common/frame_buffer.h, libdirac_common/pic_io.cpp,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/seq_compress.cpp: Added support for I-frame only
          coding by setting num_L1 equal 0; num_L1 negative gives a single
          initial I-frame ('infinitely' many L1 frames). Revised quantiser
          selection to cope with rounding error noise.

2004-05-14 18:27  stuart_hc

        * decoder/decmain.cpp: Added better error checking.

2004-05-14 18:25  stuart_hc

        * libdirac_common/pic_io.cpp, libdirac_common/pic_io.h,
          picheader/headmain.cpp: Replaced binary header files with ASCII
          text format to achieve cross-platform interoperability.
          Rearranged PicOutput constructor to permit code reuse from
          picheader/headmain.cpp

2004-05-14 18:20  stuart_hc

        * decoder/Makefile.am, encoder/Makefile.am, picheader/Makefile.am:
          Use LDADD to ensure files which depend on libraries are rebuilt
          when necessary.

2004-05-14 15:21  tjdwave

        * README: Build information now incorporated.

2004-05-14 11:48  stuart_hc

        * bootstrap: Avoid errors when mixing versions of autotools.

2004-05-14 11:47  stuart_hc

        * make_debug.sh: Rearranged to use "make" to be more maintainable.

2004-05-12 17:04  tjdwave

        * decoder/decmain.cpp, picheader/headmain.cpp,
          libdirac_encoder/seq_compress.cpp:
          Done general code tidy, implementing copy constructors,
          assignment= and const correctness for most classes. Replaced Gop
          class by FrameBuffer class throughout.  Added support for frame
          padding so that arbitrary block sizes and frame dimensions can be
          supported.

2004-05-12 17:03  tjdwave

        * encoder/encmain.cpp:
          Done general code tidy, implementing copy constructors,
          assignment= and const  correctness for most classes. Replaced Gop
          class by FrameBuffer class throughout. Added support for frame
          padding so that arbitrary block sizes and frame  dimensions can
          be supported.

2004-05-12 10:23  tjdwave

        * reconf: Removed since it duplicated the job of ./bootstrap.

2004-05-12 10:20  tjdwave

        * dirac_build_howto.txt: All build instructions are now in the
          README file.  Information on creating a distribution removed
          since it is not indended for the target audience.

2004-05-12 09:46  tjdwave

        * win/xparam/README: XParam library is no longer needed to build
          Dirac.

2004-05-12 09:35  tjdwave

        * libdirac_common/arith_codec.h, libdirac_common/arrays.h,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/bit_manager.cpp, libdirac_common/bit_manager.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/context.h, libdirac_common/frame.cpp,
          libdirac_common/frame.h, libdirac_common/golomb.cpp,
          libdirac_common/golomb.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_common/upconvert.cpp,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.h,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h: Done general code tidy,
          implementing copy constructors, assignment= and const correctness
          for most classes. Replaced Gop class by FrameBuffer class
          throughout.  Added support for frame padding so that arbitrary
          block sizes and frame dimensions can be supported.

2004-05-12 09:21  stuart_hc

        * libdirac_common/: gop.cpp, gop.h, Makefile.am: FrameBuffer
          classes (frame_buffer.{cpp,h}) now replace Gop classes
          (gop.{cpp,h}).

2004-05-12 09:14  tjdwave

        * libdirac_common/: frame_buffer.cpp, frame_buffer.h: Initial
          commit of FrameBuffer classes to handle free-style temporal
          reference structures. Replaces Gop class (gop.{cpp,h}).

2004-05-11 17:11  stuart_hc

        * Makefile.am, bootstrap, configure.ac, decoder/Makefile.am,
          doc/Makefile.am, encoder/Makefile.am,
          libdirac_common/Makefile.am, libdirac_decoder/Makefile.am,
          libdirac_encoder/Makefile.am, libdirac_motionest/Makefile.am,
          picheader/Makefile.am: Removed use of libtool - all libraries and
          binaries are now static for ease of development & debugging.
          Added tests for documentation tools and added documentation to
          default make target 'all'.

2004-05-11 15:17  tjdwave

        * Makefile.am, README, configure.ac, dirac_build_howto.txt,
          decoder/Makefile.am, decoder/decmain.cpp, encoder/Makefile.am,
          encoder/encmain.cpp, libdirac_common/cmd_line.cpp,
          libdirac_common/cmd_line.h, libdirac_encoder/seq_compress.cpp,
          picheader/Makefile.am, picheader/headmain.cpp, win/Makefile,
          win/README, win/xparam/README: Removed dependency on XParam CLI
          library for both encoder and decoder.

2004-05-11 15:15  tjdwave

        * doc/dirac_algor.tex: Removed inline comments and notes. Added
          text describing frame types (I, L1 and L2) and relation to MPEG
          types.

2004-05-10 05:44  chaoticcoyote

        * doc/dirac_algor.tex: Newest version of "programmer's guide"

2004-05-10 05:43  chaoticcoyote

        * libdirac_common/: cmd_line.cpp, cmd_line.h: Simple, portable
          command-line parser (eliminates Xparam dependency)

2004-05-10 05:41  chaoticcoyote

        * doc/dirac_algor.tex, encoder/encmain.cpp,
          libdirac_common/Makefile.am: Updated dirac algorithm document
          Modified encoder to use simple, portable command-line parser

2004-05-10 02:04  chaoticcoyote

        * encoder/decmain.cpp: Removed spurious file

2004-04-25 23:27  chaoticcoyote

        * win/: README, xparam/README: Read Me files to explain the context
          of this directory and Makefile

2004-04-25 23:16  chaoticcoyote

        * win/Makefile: Added nmake makefile for Microsoft Visual C++

2004-04-22 23:14  chaoticcoyote

        * make_debug.sh: Enhanced the debug build script to support
          different architectures

2004-04-22 22:11  chaoticcoyote

        * misc/xparam-1.22-gcc-3.4.0.patch: A patch for xparam 1.22 to work
          around a GCC 3.4.0 internal compiler error

2004-04-22 22:08  chaoticcoyote

        * make_debug.sh, libdirac_encoder/comp_compress.cpp: Fixed warning
          generated by some versions of GCC for
          libdirac_encoder/comp_compress.cpp Added make_debug.sh script to
          build debuggable, profilable versions of encoder and decoder

2004-04-16 04:12  chaoticcoyote

        * doc/Makefile.in: Removed spurious file

2004-04-16 04:11  chaoticcoyote

        * doc/: Makefile.in, dirac_api.doxygen.in: Added additional
          documentation build files

2004-04-16 04:10  chaoticcoyote

        * Makefile.am, doc/Makefile.am, doc/dirac_api.doxygen: Addiitonal
          work on generating docs for distribution

2004-04-16 02:41  chaoticcoyote

        * doc/: dirac_algor.tex, dirac_algorithm2.tex: Renamed algorithm
          document

2004-04-16 02:28  chaoticcoyote

        * Makefile.am, doc/Makefile.am: Added documentation targets to
          makefiles

2004-04-15 14:59  chaoticcoyote

        * configure.ac: Added doc/Makefile

2004-04-15 14:57  chaoticcoyote

        * doc/Makefile.am: Added makefile boilerplate to generate docusment
          via "docs" target

2004-04-15 14:54  chaoticcoyote

        * configure.ac: Added program checks for Doxygen and LaTeX

2004-04-15 13:31  chaoticcoyote

        * configure.ac: Updated to version 0.2.0

2004-04-15 13:30  chaoticcoyote

        * doc/dirac_algorithm2.tex: Dirac algorithm document added

2004-04-12 02:57  chaoticcoyote

        * Makefile.am, decoder/decmain.cpp, encoder/encmain.cpp,
          libdirac_common/pic_io.cpp: Fixed problem Intel C++ had in
          finding xparam headers on Linux Solved Segmentation Fault bug in
          pic_io.cpp

2004-04-11 23:54  chaoticcoyote

        * libdirac_common/: arith_codec.h, bit_manager.h, context.h:
          Additional comments

2004-04-11 23:50  chaoticcoyote

        * libdirac_common/arrays.h, libdirac_common/band_codec.h,
          libdirac_common/bit_manager.cpp, libdirac_common/common.cpp,
          libdirac_common/common.h, libdirac_common/golomb.cpp,
          libdirac_common/gop.cpp, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/pic_io.cpp, libdirac_common/upconvert.cpp,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.cpp,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/seq_compress.cpp,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_utils.cpp,
          libdirac_motionest/motion_estimate.cpp: Modifications to allow
          compilation by Visual C++ 6.0 Changed local for loop declarations
          into function-wide definitions Replaced variable array
          declarations with new/delete of dynamic array Added second
          argument to allocator::alloc calls, since MS has no default Fixed
          missing and namespace problems with min, max, cos, and abs Added
          typedef unsigned int uint (MS does not have this) Added a few
          missing std:: qualifiers that GCC didn't require

2004-04-11 17:25  chaoticcoyote

        * windows/dirac/: dirac.dsw, libdirac_common/libdirac_common.dsp,
          libdirac_decoder/libdirac_decoder.dsp,
          libdirac_encoder/libdirac_encoder.dsp,
          libdirac_motionest/libdirac_motionest.dsp: Added initial Windows
          Visual Studio C++ 6.0 project files

2004-04-06 19:06  chaoticcoyote

        * libdirac_common/: arith_codec.h, arrays.h, band_codec.h,
          bit_manager.h, common.h, context.h, frame.h, gop.h, mot_comp.h,
          motion.h, mv_codec.h, pic_io.h, upconvert.h, wavelet_utils.h:
          Boilerplate for Doxygen comments; testing ability to commit into
          SF CVS

2004-04-05 04:05  chaoticcoyote

        * libdirac_motionest/: downconvert.h, me_mode_decn.h, me_subpel.h,
          me_utils.h, motion_estimate.h: Updated Doxygen API documentation
          comments Test to see if Scott's CVS is now working correctly

2004-03-30 16:52  chaoticcoyote

        * doc/dirac_api.doxygen, libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.h: New Doxygen comments

2004-03-29 02:52  chaoticcoyote

        * libdirac_decoder/: comp_decompress.h, frame_decompress.h,
          seq_decompress.h: Added Doxygen comments

2004-03-22 01:33  chaoticcoyote

        * doc/dirac_doc_howto.txt: Added more description of HTML and LATEX
          document generation

2004-03-22 01:04  chaoticcoyote

        * libdirac_encoder/: comp_compress.cpp, comp_compress.h,
          frame_compress.h, seq_compress.cpp, seq_compress.h: Added API
          documentation to encoder library Moved large constructors so they
          are no longer inlined

2004-03-21 21:01  chaoticcoyote

        * doc/: libdirac_encoder_api_foot.html,
          libdirac_encoder_api_head.html: Adding custome header and footer
          for HTML libdirac_encoder docs

2004-03-21 21:00  chaoticcoyote

        * doc/: libdirac_encoder_api.doxygen, libdirac_encoder_foot.html,
          libdirac_encoder_head.html: Adjusting file names

2004-03-21 20:51  chaoticcoyote

        * doc/: libdirac_encoder_api.doxygen, libdirac_encoder_foot.html,
          libdirac_encoder_head.html: Added files to generate socumentation
          specific to libdirac_encoder

2004-03-21 19:26  chaoticcoyote

        * doc/dirac_api.doxygen: Change graphic configuration

2004-03-21 14:05  chaoticcoyote

        * dirac_build_howto.txt, doc/dirac_api.doxygen,
          doc/dirac_api_foot.html, doc/dirac_api_head.html,
          doc/dirac_doc_howto.txt: Updated documentation files

2004-03-21 13:06  chaoticcoyote

        * ltmain.sh, reconf: Updated autoconf to use libtoolize Removed
          spurious ltmain.sh

2004-03-19 07:43  chaoticcoyote

        * doc/dirac_algorithm.doc: Removed Word doc because the conversion
          didn't work

2004-03-19 07:35  chaoticcoyote

        * doc/: dirac_algorithm.doc, dirac_api.doxygen: Created document
          diractory Populated doc directory with preliminary texts

2004-03-13 17:34  chaoticcoyote

        * decoder/Makefile.am, encoder/Makefile.am,
          libdirac_decoder/Makefile.am, libdirac_encoder/Makefile.am,
          libdirac_motionest/Makefile.am: Disabled auto-dependency checking
          in newer versions of AutoMake

2004-03-13 17:11  chaoticcoyote

        * ltmain.sh, reconf, libdirac_common/Makefile.am: Required files
          for for autoconf

2004-03-12 17:09  chaoticcoyote

        * NEWS: Minor change to test commit ability

2004-03-11 17:45  timborer

        * AUTHORS, COPYING, ChangeLog, INSTALL, Makefile.am, NEWS, README,
          TODO, bootstrap, configure.ac, dirac.pc.in, decoder/Makefile.am,
          decoder/decmain.cpp, encoder/Makefile.am, encoder/decmain.cpp,
          encoder/encmain.cpp, libdirac_common/Makefile.am,
          libdirac_common/arith_codec.h, libdirac_common/arrays.h,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/bit_manager.cpp, libdirac_common/bit_manager.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/context.h, libdirac_common/frame.cpp,
          libdirac_common/frame.h, libdirac_common/golomb.cpp,
          libdirac_common/golomb.h, libdirac_common/gop.cpp,
          libdirac_common/gop.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_common/upconvert.cpp,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h, libdirac_decoder/Makefile.am,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h, libdirac_encoder/Makefile.am,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h, libdirac_motionest/Makefile.am,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h, picheader/Makefile.am,
          picheader/headmain.cpp: Initial import (well nearly!)

2004-03-11 17:45  timborer

        * AUTHORS, COPYING, ChangeLog, INSTALL, Makefile.am, NEWS, README,
          TODO, bootstrap, configure.ac, dirac.pc.in, decoder/Makefile.am,
          decoder/decmain.cpp, encoder/Makefile.am, encoder/decmain.cpp,
          encoder/encmain.cpp, libdirac_common/Makefile.am,
          libdirac_common/arith_codec.h, libdirac_common/arrays.h,
          libdirac_common/band_codec.cpp, libdirac_common/band_codec.h,
          libdirac_common/bit_manager.cpp, libdirac_common/bit_manager.h,
          libdirac_common/common.cpp, libdirac_common/common.h,
          libdirac_common/context.h, libdirac_common/frame.cpp,
          libdirac_common/frame.h, libdirac_common/golomb.cpp,
          libdirac_common/golomb.h, libdirac_common/gop.cpp,
          libdirac_common/gop.h, libdirac_common/mot_comp.cpp,
          libdirac_common/mot_comp.h, libdirac_common/motion.cpp,
          libdirac_common/motion.h, libdirac_common/mv_codec.cpp,
          libdirac_common/mv_codec.h, libdirac_common/pic_io.cpp,
          libdirac_common/pic_io.h, libdirac_common/upconvert.cpp,
          libdirac_common/upconvert.h, libdirac_common/wavelet_utils.cpp,
          libdirac_common/wavelet_utils.h, libdirac_decoder/Makefile.am,
          libdirac_decoder/comp_decompress.cpp,
          libdirac_decoder/comp_decompress.h,
          libdirac_decoder/frame_decompress.cpp,
          libdirac_decoder/frame_decompress.h,
          libdirac_decoder/seq_decompress.cpp,
          libdirac_decoder/seq_decompress.h, libdirac_encoder/Makefile.am,
          libdirac_encoder/comp_compress.cpp,
          libdirac_encoder/comp_compress.h,
          libdirac_encoder/frame_compress.cpp,
          libdirac_encoder/frame_compress.h,
          libdirac_encoder/seq_compress.cpp,
          libdirac_encoder/seq_compress.h, libdirac_motionest/Makefile.am,
          libdirac_motionest/block_match.cpp,
          libdirac_motionest/block_match.h,
          libdirac_motionest/downconvert.cpp,
          libdirac_motionest/downconvert.h,
          libdirac_motionest/me_mode_decn.cpp,
          libdirac_motionest/me_mode_decn.h,
          libdirac_motionest/me_subpel.cpp, libdirac_motionest/me_subpel.h,
          libdirac_motionest/me_utils.cpp, libdirac_motionest/me_utils.h,
          libdirac_motionest/motion_estimate.cpp,
          libdirac_motionest/motion_estimate.h, picheader/Makefile.am,
          picheader/headmain.cpp: Initial revision