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  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 */
  46.