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ffmpeg-4.2.2/libavcodec/lossless_videoencdsp.h 1.69 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * 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_LOSSLESS_VIDEOENCDSP_H
  #define AVCODEC_LOSSLESS_VIDEOENCDSP_H
  
  #include <stdint.h>
  
  #include "avcodec.h"
  
  typedef struct LLVidEncDSPContext {
      void (*diff_bytes)(uint8_t *dst /* align 16 */,
                         const uint8_t *src1 /* align 16 */,
                         const uint8_t *src2 /* align 1 */,
                         intptr_t w);
      /**
       * Subtract HuffYUV's variant of median prediction.
       * Note, this might read from src1[-1], src2[-1].
       */
      void (*sub_median_pred)(uint8_t *dst, const uint8_t *src1,
                              const uint8_t *src2, intptr_t w,
                              int *left, int *left_top);
  
      void (*sub_left_predict)(uint8_t *dst, uint8_t *src,
                            ptrdiff_t stride, ptrdiff_t width, int height);
  } LLVidEncDSPContext;
  
  void ff_llvidencdsp_init(LLVidEncDSPContext *c);
  void ff_llvidencdsp_init_x86(LLVidEncDSPContext *c);
  
  #endif /* AVCODEC_LOSSLESS_VIDEOENCDSP_H */