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  1. /*
  2.  * MPEG1/2 tables
  3.  * copyright (c) 2000,2001 Fabrice Bellard
  4.  * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  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. /**
  24.  * @file
  25.  * MPEG1/2 tables.
  26.  */
  27.  
  28. #ifndef AVCODEC_MPEG12DATA_H
  29. #define AVCODEC_MPEG12DATA_H
  30.  
  31. #include <stdint.h>
  32. #include "libavutil/rational.h"
  33. #include "rl.h"
  34.  
  35. extern const uint16_t ff_mpeg1_default_intra_matrix[];
  36. extern const uint16_t ff_mpeg1_default_non_intra_matrix[64];
  37.  
  38. extern const uint16_t ff_mpeg12_vlc_dc_lum_code[12];
  39. extern const unsigned char ff_mpeg12_vlc_dc_lum_bits[12];
  40. extern const uint16_t ff_mpeg12_vlc_dc_chroma_code[12];
  41. extern const unsigned char ff_mpeg12_vlc_dc_chroma_bits[12];
  42.  
  43. extern RLTable ff_rl_mpeg1;
  44. extern RLTable ff_rl_mpeg2;
  45.  
  46. extern const uint8_t ff_mpeg12_mbAddrIncrTable[36][2];
  47. extern const uint8_t ff_mpeg12_mbPatTable[64][2];
  48.  
  49. extern const uint8_t ff_mpeg12_mbMotionVectorTable[17][2];
  50.  
  51. extern const AVRational ff_mpeg12_frame_rate_tab[];
  52. extern const AVRational ff_mpeg2_frame_rate_tab[];
  53.  
  54. extern const float ff_mpeg1_aspect[16];
  55. extern const AVRational ff_mpeg2_aspect[16];
  56.  
  57. #endif /* AVCODEC_MPEG12DATA_H */
  58.