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ffmpeg-4.2.2/libavcodec/h263data.h 2.3 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * copyright (c) 2000,2001 Fabrice Bellard
   * H.263+ support
   * copyright (c) 2001 Juan J. Sierralta P
   * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
   *
   * This file is part of FFmpeg.
   *
   * FFmpeg is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * FFmpeg is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with FFmpeg; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  /**
   * @file
   * H.263 tables.
   */
  
  #ifndef AVCODEC_H263DATA_H
  #define AVCODEC_H263DATA_H
  
  #include <stdint.h>
  
  #include "libavutil/rational.h"
  
  #include "rl.h"
  
  extern const AVRational ff_h263_pixel_aspect[16];
  
  /* intra MCBPC, mb_type = (intra), then (intraq) */
  extern const uint8_t ff_h263_intra_MCBPC_code[9];
  extern const uint8_t ff_h263_intra_MCBPC_bits[9];
  
  /* inter MCBPC, mb_type = (inter), (intra), (interq), (intraq), (inter4v) */
  /* Changed the tables for interq and inter4v+q, following the standard ** Juanjo ** */
  extern const uint8_t ff_h263_inter_MCBPC_code[28];
  extern const uint8_t ff_h263_inter_MCBPC_bits[28];
  
  extern const uint8_t ff_h263_mbtype_b_tab[15][2];
  
  extern const uint8_t ff_cbpc_b_tab[4][2];
  extern const uint8_t ff_h263_cbpy_tab[16][2];
  
  extern const uint8_t ff_mvtab[33][2];
  
  /* third non intra table */
  extern const uint16_t ff_inter_vlc[103][2];
  
  extern const int8_t ff_inter_level[102];
  extern const int8_t ff_inter_run[102];
  
  extern RLTable ff_h263_rl_inter;
  extern RLTable ff_rl_intra_aic;
  extern uint8_t ff_h263_static_rl_table_store[2][2][2 * MAX_RUN + MAX_LEVEL + 3];
  
  extern const uint16_t ff_h263_format[8][2];
  
  extern const uint8_t ff_aic_dc_scale_table[32];
  
  extern const uint8_t ff_modified_quant_tab[2][32];
  
  extern const uint8_t ff_h263_chroma_qscale_table[32];
  
  extern const uint16_t ff_mba_max[6];
  extern const uint8_t ff_mba_length[7];
  
  #endif /* AVCODEC_H263DATA_H */