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  1. /*
  2.  * HEVC shared tables
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * FFmpeg is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #include <stdint.h>
  22.  
  23. #include "hevc.h"
  24.  
  25. const uint8_t ff_hevc_diag_scan4x4_x[16] = {
  26.     0, 0, 1, 0,
  27.     1, 2, 0, 1,
  28.     2, 3, 1, 2,
  29.     3, 2, 3, 3,
  30. };
  31.  
  32. const uint8_t ff_hevc_diag_scan4x4_y[16] = {
  33.     0, 1, 0, 2,
  34.     1, 0, 3, 2,
  35.     1, 0, 3, 2,
  36.     1, 3, 2, 3,
  37. };
  38.  
  39. const uint8_t ff_hevc_diag_scan8x8_x[64] = {
  40.     0, 0, 1, 0,
  41.     1, 2, 0, 1,
  42.     2, 3, 0, 1,
  43.     2, 3, 4, 0,
  44.     1, 2, 3, 4,
  45.     5, 0, 1, 2,
  46.     3, 4, 5, 6,
  47.     0, 1, 2, 3,
  48.     4, 5, 6, 7,
  49.     1, 2, 3, 4,
  50.     5, 6, 7, 2,
  51.     3, 4, 5, 6,
  52.     7, 3, 4, 5,
  53.     6, 7, 4, 5,
  54.     6, 7, 5, 6,
  55.     7, 6, 7, 7,
  56. };
  57.  
  58. const uint8_t ff_hevc_diag_scan8x8_y[64] = {
  59.     0, 1, 0, 2,
  60.     1, 0, 3, 2,
  61.     1, 0, 4, 3,
  62.     2, 1, 0, 5,
  63.     4, 3, 2, 1,
  64.     0, 6, 5, 4,
  65.     3, 2, 1, 0,
  66.     7, 6, 5, 4,
  67.     3, 2, 1, 0,
  68.     7, 6, 5, 4,
  69.     3, 2, 1, 7,
  70.     6, 5, 4, 3,
  71.     2, 7, 6, 5,
  72.     4, 3, 7, 6,
  73.     5, 4, 7, 6,
  74.     5, 7, 6, 7,
  75. };
  76.