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  1. /*
  2.  * H26L/H264/AVC/JVT/14496-10/... encoder/decoder
  3.  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. /**
  23.  * @file
  24.  * @brief
  25.  *     H264 / AVC / MPEG4 part10 codec data table
  26.  * @author Michael Niedermayer <michaelni@gmx.at>
  27.  */
  28.  
  29. #ifndef AVCODEC_H264DATA_H
  30. #define AVCODEC_H264DATA_H
  31.  
  32. #include <stdint.h>
  33.  
  34. #include "libavutil/rational.h"
  35. #include "mpegvideo.h"
  36. #include "h264.h"
  37.  
  38. static const uint8_t golomb_to_pict_type[5] = {
  39.     AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, AV_PICTURE_TYPE_I,
  40.     AV_PICTURE_TYPE_SP, AV_PICTURE_TYPE_SI
  41. };
  42.  
  43. static const uint8_t golomb_to_intra4x4_cbp[48] = {
  44.     47, 31, 15, 0,  23, 27, 29, 30, 7,  11, 13, 14, 39, 43, 45, 46,
  45.     16, 3,  5,  10, 12, 19, 21, 26, 28, 35, 37, 42, 44, 1,  2,  4,
  46.     8,  17, 18, 20, 24, 6,  9,  22, 25, 32, 33, 34, 36, 40, 38, 41
  47. };
  48.  
  49. static const uint8_t golomb_to_inter_cbp[48] = {
  50.     0,  16, 1,  2,  4,  8,  32, 3,  5,  10, 12, 15, 47, 7,  11, 13,
  51.     14, 6,  9,  31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46,
  52.     17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41
  53. };
  54.  
  55. static const uint8_t zigzag_scan[16+1] = {
  56.     0 + 0 * 4, 1 + 0 * 4, 0 + 1 * 4, 0 + 2 * 4,
  57.     1 + 1 * 4, 2 + 0 * 4, 3 + 0 * 4, 2 + 1 * 4,
  58.     1 + 2 * 4, 0 + 3 * 4, 1 + 3 * 4, 2 + 2 * 4,
  59.     3 + 1 * 4, 3 + 2 * 4, 2 + 3 * 4, 3 + 3 * 4,
  60. };
  61.  
  62. static const uint8_t chroma_dc_scan[4] = {
  63.     (0 + 0 * 2) * 16, (1 + 0 * 2) * 16,
  64.     (0 + 1 * 2) * 16, (1 + 1 * 2) * 16,
  65. };
  66.  
  67. static const uint8_t chroma422_dc_scan[8] = {
  68.     (0 + 0 * 2) * 16, (0 + 1 * 2) * 16,
  69.     (1 + 0 * 2) * 16, (0 + 2 * 2) * 16,
  70.     (0 + 3 * 2) * 16, (1 + 1 * 2) * 16,
  71.     (1 + 2 * 2) * 16, (1 + 3 * 2) * 16,
  72. };
  73.  
  74. typedef struct IMbInfo {
  75.     uint16_t type;
  76.     uint8_t pred_mode;
  77.     uint8_t cbp;
  78. } IMbInfo;
  79.  
  80. static const IMbInfo i_mb_type_info[26] = {
  81.     { MB_TYPE_INTRA4x4,  -1,  -1 },
  82.     { MB_TYPE_INTRA16x16, 2,   0 },
  83.     { MB_TYPE_INTRA16x16, 1,   0 },
  84.     { MB_TYPE_INTRA16x16, 0,   0 },
  85.     { MB_TYPE_INTRA16x16, 3,   0 },
  86.     { MB_TYPE_INTRA16x16, 2,  16 },
  87.     { MB_TYPE_INTRA16x16, 1,  16 },
  88.     { MB_TYPE_INTRA16x16, 0,  16 },
  89.     { MB_TYPE_INTRA16x16, 3,  16 },
  90.     { MB_TYPE_INTRA16x16, 2,  32 },
  91.     { MB_TYPE_INTRA16x16, 1,  32 },
  92.     { MB_TYPE_INTRA16x16, 0,  32 },
  93.     { MB_TYPE_INTRA16x16, 3,  32 },
  94.     { MB_TYPE_INTRA16x16, 2,  15 +  0 },
  95.     { MB_TYPE_INTRA16x16, 1,  15 +  0 },
  96.     { MB_TYPE_INTRA16x16, 0,  15 +  0 },
  97.     { MB_TYPE_INTRA16x16, 3,  15 +  0 },
  98.     { MB_TYPE_INTRA16x16, 2,  15 + 16 },
  99.     { MB_TYPE_INTRA16x16, 1,  15 + 16 },
  100.     { MB_TYPE_INTRA16x16, 0,  15 + 16 },
  101.     { MB_TYPE_INTRA16x16, 3,  15 + 16 },
  102.     { MB_TYPE_INTRA16x16, 2,  15 + 32 },
  103.     { MB_TYPE_INTRA16x16, 1,  15 + 32 },
  104.     { MB_TYPE_INTRA16x16, 0,  15 + 32 },
  105.     { MB_TYPE_INTRA16x16, 3,  15 + 32 },
  106.     { MB_TYPE_INTRA_PCM,  -1, -1 },
  107. };
  108.  
  109. typedef struct PMbInfo {
  110.     uint16_t type;
  111.     uint8_t partition_count;
  112. } PMbInfo;
  113.  
  114. static const PMbInfo p_mb_type_info[5] = {
  115.     { MB_TYPE_16x16 | MB_TYPE_P0L0,                               1 },
  116.     { MB_TYPE_16x8  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                2 },
  117.     { MB_TYPE_8x16  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                2 },
  118.     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P1L0,                4 },
  119.     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_REF0, 4 },
  120. };
  121.  
  122. static const PMbInfo p_sub_mb_type_info[4] = {
  123.     { MB_TYPE_16x16 | MB_TYPE_P0L0, 1 },
  124.     { MB_TYPE_16x8  | MB_TYPE_P0L0, 2 },
  125.     { MB_TYPE_8x16  | MB_TYPE_P0L0, 2 },
  126.     { MB_TYPE_8x8   | MB_TYPE_P0L0, 4 },
  127. };
  128.  
  129. static const PMbInfo b_mb_type_info[23] = {
  130.     { MB_TYPE_DIRECT2 | MB_TYPE_L0L1,                                              1, },
  131.     { MB_TYPE_16x16   | MB_TYPE_P0L0,                                              1, },
  132.     { MB_TYPE_16x16   | MB_TYPE_P0L1,                                              1, },
  133.     { MB_TYPE_16x16   | MB_TYPE_P0L0 | MB_TYPE_P0L1,                               1, },
  134.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },
  135.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },
  136.     { MB_TYPE_16x8    | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },
  137.     { MB_TYPE_8x16    | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },
  138.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P1L1,                               2, },
  139.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P1L1,                               2, },
  140.     { MB_TYPE_16x8    | MB_TYPE_P0L1 | MB_TYPE_P1L0,                               2, },
  141.     { MB_TYPE_8x16    | MB_TYPE_P0L1 | MB_TYPE_P1L0,                               2, },
  142.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },
  143.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },
  144.     { MB_TYPE_16x8    | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },
  145.     { MB_TYPE_8x16    | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },
  146.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0,                2, },
  147.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0,                2, },
  148.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1,                2, },
  149.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1,                2, },
  150.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
  151.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
  152.     { MB_TYPE_8x8     | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },
  153. };
  154.  
  155. static const PMbInfo b_sub_mb_type_info[13] = {
  156.     { MB_TYPE_DIRECT2,                                                           1, },
  157.     { MB_TYPE_16x16 | MB_TYPE_P0L0,                                              1, },
  158.     { MB_TYPE_16x16 | MB_TYPE_P0L1,                                              1, },
  159.     { MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1,                               1, },
  160.     { MB_TYPE_16x8  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },
  161.     { MB_TYPE_8x16  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },
  162.     { MB_TYPE_16x8  | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },
  163.     { MB_TYPE_8x16  | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },
  164.     { MB_TYPE_16x8  | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
  165.     { MB_TYPE_8x16  | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
  166.     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               4, },
  167.     { MB_TYPE_8x8   | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               4, },
  168.     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },
  169. };
  170.  
  171. #endif /* AVCODEC_H264DATA_H */
  172.