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ffmpeg-4.2.2/libavcodec/asv.h 1.99 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Copyright (c) 2003 Michael Niedermayer
   *
   * 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
   * ASUS V1/V2 encoder/decoder common data.
   */
  
  #ifndef AVCODEC_ASV_H
  #define AVCODEC_ASV_H
  
  #include <stdint.h>
  
  #include "libavutil/mem.h"
  
  #include "avcodec.h"
  #include "blockdsp.h"
  #include "bswapdsp.h"
  #include "fdctdsp.h"
  #include "idctdsp.h"
  #include "get_bits.h"
  #include "pixblockdsp.h"
  #include "put_bits.h"
  
  typedef struct ASV1Context {
      AVCodecContext *avctx;
      BlockDSPContext bdsp;
      BswapDSPContext bbdsp;
      FDCTDSPContext fdsp;
      IDCTDSPContext idsp;
      PixblockDSPContext pdsp;
      PutBitContext pb;
      GetBitContext gb;
      ScanTable scantable;
      int inv_qscale;
      int mb_width;
      int mb_height;
      int mb_width2;
      int mb_height2;
      DECLARE_ALIGNED(32, int16_t, block)[6][64];
      uint16_t intra_matrix[64];
      int q_intra_matrix[64];
      uint8_t *bitstream_buffer;
      unsigned int bitstream_buffer_size;
  } ASV1Context;
  
  extern const uint8_t ff_asv_scantab[64];
  extern const uint8_t ff_asv_ccp_tab[17][2];
  extern const uint8_t ff_asv_level_tab[7][2];
  extern const uint8_t ff_asv_dc_ccp_tab[8][2];
  extern const uint8_t ff_asv_ac_ccp_tab[16][2];
  extern const uint8_t ff_asv2_level_tab[63][2];
  
  void ff_asv_common_init(AVCodecContext *avctx);
  
  #endif /* AVCODEC_ASV_H */