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ffmpeg-4.2.2/libavcodec/bgmc.h 1.61 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Block Gilbert-Moore decoder
   * Copyright (c) 2010 Thilo Borgmann <thilo.borgmann _at_ mail.de>
   *
   * 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
   * Block Gilbert-Moore decoder header
   * @author Thilo Borgmann <thilo.borgmann _at_ mail.de>
   */
  
  
  #ifndef AVCODEC_BGMC_H
  #define AVCODEC_BGMC_H
  
  
  #include "avcodec.h"
  #include "get_bits.h"
  
  
  int ff_bgmc_init(AVCodecContext *avctx, uint8_t **cf_lut, int **cf_lut_status);
  
  
  void ff_bgmc_end(uint8_t **cf_lut, int **cf_lut_status);
  
  
  int ff_bgmc_decode_init(GetBitContext *gb,
                        unsigned int *h, unsigned int *l, unsigned int *v);
  
  
  void ff_bgmc_decode_end(GetBitContext *gb);
  
  
  void ff_bgmc_decode(GetBitContext *gb, unsigned int num, int32_t *dst,
                   int delta, unsigned int sx,
                   unsigned int *h, unsigned int *l, unsigned int *v,
                   uint8_t *cf_lut, int *cf_lut_status);
  
  
  #endif /* AVCODEC_BGMC_H */