libavcodec/dcahuff.h

   1 /*
   2  * DCA compatible decoder - huffman tables
   3  * Copyright (C) 2004 Gildas Bazin
   4  * Copyright (C) 2007 Konstantin Shishkov
   5  *
   6  * This file is part of FFmpeg.
   7  *
   8  * FFmpeg is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * FFmpeg is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with FFmpeg; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #ifndef AVCODEC_DCAHUFF_H
  24 #define AVCODEC_DCAHUFF_H
  25
  26 #include <stdint.h>
  27
  28 #include "libavutil/attributes.h"
  29
  30 #include "vlc.h"
  31
  32 #define DCA_CODE_BOOKS      10
  33 #define DCA_BITALLOC_12_COUNT    5
  34 #define DCA_NUM_BITALLOC_CODES (1 * 3 + \
  35                                 3 * (5 + 7 + 9 + 13) \
  36                                 + 7 * (17 + 25 + 33 + 65 + 129))
  37
  38 extern VLC  ff_dca_vlc_bit_allocation[5];
  39 #define DCA_TMODE_VLC_BITS 3
  40 extern VLC  ff_dca_vlc_transition_mode[4];
  41 #define DCA_SCALES_VLC_BITS 9
  42 extern VLC  ff_dca_vlc_scale_factor[5];
  43 extern VLC  ff_dca_vlc_quant_index[DCA_CODE_BOOKS][7];
  44
  45 #define DCA_TNL_GRP_VLC_BITS 9
  46 extern VLC  ff_dca_vlc_tnl_grp[5];
  47 #define DCA_TNL_SCF_VLC_BITS 9
  48 extern VLC  ff_dca_vlc_tnl_scf;
  49 #define DCA_DAMP_VLC_BITS 6
  50 extern VLC  ff_dca_vlc_damp;
  51 #define DCA_DPH_VLC_BITS 6
  52 extern VLC  ff_dca_vlc_dph;
  53 #define DCA_FST_RSD_VLC_BITS 9
  54 extern VLC  ff_dca_vlc_fst_rsd_amp;
  55 #define DCA_RSD_APPRX_VLC_BITS 5
  56 extern VLC  ff_dca_vlc_rsd_apprx;
  57 #define DCA_RSD_AMP_VLC_BITS 9
  58 extern VLC  ff_dca_vlc_rsd_amp;
  59 #define DCA_AVG_G3_VLC_BITS 9
  60 extern VLC  ff_dca_vlc_avg_g3;
  61 #define DCA_ST_GRID_VLC_BITS 9
  62 extern VLC  ff_dca_vlc_st_grid;
  63 #define DCA_GRID_VLC_BITS 9
  64 extern VLC  ff_dca_vlc_grid_2;
  65 extern VLC  ff_dca_vlc_grid_3;
  66 #define DCA_RSD_VLC_BITS 6
  67 extern VLC  ff_dca_vlc_rsd;
  68
  69 extern const int8_t  ff_dca_bitalloc_offsets[DCA_CODE_BOOKS];
  70 extern const uint8_t ff_dca_bitalloc_sizes[DCA_CODE_BOOKS];
  71 extern const uint8_t ff_dca_vlc_src_tables[][2];
  72
  73 av_cold void ff_dca_init_vlcs(void);
  74
  75 #endif /* AVCODEC_DCAHUFF_H */