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3rdparty/ffmpeg-4.4.4/libavcodec/av1dec.h 2.19 KB
09c2d08c   Hu Chunming   arm交付版
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  /*
   * AV1 video decoder
   * *
   * 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
   */
  
  #ifndef AVCODEC_AV1DEC_H
  #define AVCODEC_AV1DEC_H
  
  #include <stdint.h>
  
  #include "libavutil/buffer.h"
  #include "libavutil/pixfmt.h"
  #include "avcodec.h"
  #include "cbs.h"
  #include "cbs_av1.h"
  #include "thread.h"
  
  typedef struct AV1Frame {
      ThreadFrame tf;
  
      AVBufferRef *hwaccel_priv_buf;
      void *hwaccel_picture_private;
  
      AVBufferRef *header_ref;
      AV1RawFrameHeader *raw_frame_header;
  
      int temporal_id;
      int spatial_id;
  
      uint8_t gm_invalid[AV1_NUM_REF_FRAMES];
      uint8_t gm_type[AV1_NUM_REF_FRAMES];
      int32_t gm_params[AV1_NUM_REF_FRAMES][6];
  
      uint8_t skip_mode_frame_idx[2];
  
      AV1RawFilmGrainParams film_grain;
  
      uint8_t coded_lossless;
  } AV1Frame;
  
  typedef struct TileGroupInfo {
      uint32_t tile_offset;
      uint32_t tile_size;
      uint16_t tile_row;
      uint16_t tile_column;
  } TileGroupInfo;
  
  typedef struct AV1DecContext {
      const AVClass *class;
      AVCodecContext *avctx;
  
      enum AVPixelFormat pix_fmt;
      CodedBitstreamContext *cbc;
      CodedBitstreamFragment current_obu;
  
      AVBufferRef *seq_ref;
      AV1RawSequenceHeader *raw_seq;
      AVBufferRef *header_ref;
      AV1RawFrameHeader *raw_frame_header;
      TileGroupInfo *tile_group_info;
      uint16_t tile_num;
      uint16_t tg_start;
      uint16_t tg_end;
  
      int operating_point_idc;
  
      AV1Frame ref[AV1_NUM_REF_FRAMES];
      AV1Frame cur_frame;
  
      // AVOptions
      int operating_point;
  } AV1DecContext;
  
  #endif /* AVCODEC_AV1DEC_H */