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ffmpeg-4.2.2/libavutil/motion_vector.h 1.73 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 AVUTIL_MOTION_VECTOR_H
  #define AVUTIL_MOTION_VECTOR_H
  
  #include <stdint.h>
  
  typedef struct AVMotionVector {
      /**
       * Where the current macroblock comes from; negative value when it comes
       * from the past, positive value when it comes from the future.
       * XXX: set exact relative ref frame reference instead of a +/- 1 "direction".
       */
      int32_t source;
      /**
       * Width and height of the block.
       */
      uint8_t w, h;
      /**
       * Absolute source position. Can be outside the frame area.
       */
      int16_t src_x, src_y;
      /**
       * Absolute destination position. Can be outside the frame area.
       */
      int16_t dst_x, dst_y;
      /**
       * Extra flag information.
       * Currently unused.
       */
      uint64_t flags;
      /**
       * Motion vector
       * src_x = dst_x + motion_x / motion_scale
       * src_y = dst_y + motion_y / motion_scale
       */
      int32_t motion_x, motion_y;
      uint16_t motion_scale;
  } AVMotionVector;
  
  #endif /* AVUTIL_MOTION_VECTOR_H */