ffmpeg/libavcodec/adpcm_data.h

   1 /*
   2  * Copyright (c) 2001-2003 The FFmpeg Project
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 /**
  22  * @file
  23  * ADPCM tables
  24  */
  25
  26 #ifndef AVCODEC_ADPCM_DATA_H
  27 #define AVCODEC_ADPCM_DATA_H
  28
  29 #include <stdint.h>
  30
  31 static const uint8_t ff_adpcm_ima_block_sizes[4]   = {  4, 12, 4, 20 };
  32 static const uint8_t ff_adpcm_ima_block_samples[4] = { 16, 32, 8, 32 };
  33
  34 extern const int8_t * const ff_adpcm_index_tables[4];
  35 extern const int8_t  ff_adpcm_index_table[16];
  36 extern const int16_t ff_adpcm_step_table[89];
  37 extern const int16_t ff_adpcm_oki_step_table[49];
  38 extern const int16_t ff_adpcm_AdaptationTable[];
  39 extern const uint8_t ff_adpcm_AdaptCoeff1[];
  40 extern const int8_t  ff_adpcm_AdaptCoeff2[];
  41 extern const int16_t ff_adpcm_yamaha_indexscale[];
  42 extern const int8_t  ff_adpcm_yamaha_difflookup[];
  43 extern const int16_t ff_adpcm_afc_coeffs[2][16];
  44
  45 #endif /* AVCODEC_ADPCM_DATA_H */