1 libtheora 1.0alpha8 (unreleased)
5 libtheora 1.0alpha7 (2006 June 20)
7 - Enable mmx assembly by default
8 - Avoid some relocations that caused problems on SELinux
10 - time testing mode (-f) for the dump_video example
12 libtheora 1.0alpha6 (2006 May 30)
14 * Merge theora-mmx simd acceleration (x86_32 and x86_64)
15 * Major RTP payload specification update
16 * Minor format specification updates
17 * Fix some spurious calls to free() instead of _ogg_free()
18 * Fix invalid array indexing in PixelLineSearch()
19 * Improve robustness against invalid input
20 * General warning cleanup
21 * The offset_y member now means what every application thought it meant
22 (offset from the top). This will mean some old files (those with a
23 non-centered image created with a buggy encoder) will display differently.
25 libtheora 1.0alpha5 (2005 August 20)
27 * Fixed bitrate management bugs that caused popping and encode
29 * Fixed a crash problem with the theora_state internals not
30 being intialized properly.
31 * new utility function:
32 - theora_granule_shift()
33 * dump_video example now makes YUV4MPEG files by default, so
34 the results can be fed back to encoder_example and similar
35 tools. The old behavior is restored through the '-r' switch.
36 * ./configure now prints a summary
37 * simple unit test of the comment api under 'make check'
38 * misc code cleanup, warning and leak fixes
40 libtheora 1.0alpha4 (2004 December 15)
42 * first draft of the Theora I Format Specification
43 * API documentation generated from theora.h with Doxygen
44 * fix a double-update bug in the motion analysis
45 * apply the loop filter before filling motion vector border
46 in the reference frame
47 * new utility functions:
48 - theora_packet_isheader(),
49 - theora_packet_iskeyframe()
50 - theora_granule_frame()
51 * optional support for building without floating point
52 * optional support for building without encode support
53 * various build and packaging fixes
55 * SymbianOS build support
57 libtheora 1.0alpha3 (2004 March 20)
59 UPDATE: on 2004 July 1 the Theora I bitstream format was frozen. Files
60 produced by the libtheora 1.0alpha3 reference encoder will always be
61 decodable by the Theora I spec.
63 * Bitstream info header FORMAT CHANGES:
64 - move the granulepos shift field to maintain byte alignment longer.
65 - reserve 5 additional bits for subsampling and interlace flags.
66 * Bitstream setup header FORMAT CHANGES:
67 - support for a range of interpolated quant matricies.
68 - include the in-loop block filter coeff.
69 * Bitsteam data packet FORMAT CHANGES:
70 - Reserve a bit for per-block Q index selection.
71 - Flip the coded image orientation for compatibility with VP3.
72 This allows lossless transcoding of VP3 content, but files
73 encoded with earlier theora releases would play upside down.
74 * example VP3 lossless transcoder
75 * optional support for libogg2
76 * timing improvements in the example player
77 * packaging and build system updates and fixes
79 libtheora 1.0alpha2 (2003 June 9)
81 * bitstream FORMAT CHANGES:
82 - store the quant tables in a third setup header for
83 future encoder flexibility
84 - store the huffman tables in the third setup header
85 - add a field for marking the colorspace to the info header
86 - add crop parameters for non-multiple-of-16 frame sizes
87 - add a second vorbiscomment-style metadata header
88 * API changes to handle multiple headers with a single
89 theora_decode_header() call, like libvorbis
90 * code cleanup and minor fixes
91 * new dump_video code example/utility
92 * experimental win32 code examples
94 libtheora 1.0alpha1 (2002 September 25)
96 * First release of the theora reference implementation
97 * Port of the newly opened VP3 code to the Ogg container
98 * Rewrite of the code for portability and to use the libogg bitpacker