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ffmpeg-4.2.2/libavcodec/hevc_data.c 1.63 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * HEVC shared tables
   *
   * 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
   */
  
  #include <stdint.h>
  
  #include "hevc_data.h"
  
  const uint8_t ff_hevc_diag_scan4x4_x[16] = {
      0, 0, 1, 0,
      1, 2, 0, 1,
      2, 3, 1, 2,
      3, 2, 3, 3,
  };
  
  const uint8_t ff_hevc_diag_scan4x4_y[16] = {
      0, 1, 0, 2,
      1, 0, 3, 2,
      1, 0, 3, 2,
      1, 3, 2, 3,
  };
  
  const uint8_t ff_hevc_diag_scan8x8_x[64] = {
      0, 0, 1, 0,
      1, 2, 0, 1,
      2, 3, 0, 1,
      2, 3, 4, 0,
      1, 2, 3, 4,
      5, 0, 1, 2,
      3, 4, 5, 6,
      0, 1, 2, 3,
      4, 5, 6, 7,
      1, 2, 3, 4,
      5, 6, 7, 2,
      3, 4, 5, 6,
      7, 3, 4, 5,
      6, 7, 4, 5,
      6, 7, 5, 6,
      7, 6, 7, 7,
  };
  
  const uint8_t ff_hevc_diag_scan8x8_y[64] = {
      0, 1, 0, 2,
      1, 0, 3, 2,
      1, 0, 4, 3,
      2, 1, 0, 5,
      4, 3, 2, 1,
      0, 6, 5, 4,
      3, 2, 1, 0,
      7, 6, 5, 4,
      3, 2, 1, 0,
      7, 6, 5, 4,
      3, 2, 1, 7,
      6, 5, 4, 3,
      2, 7, 6, 5,
      4, 3, 7, 6,
      5, 4, 7, 6,
      5, 7, 6, 7,
  };