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FFmpeg/libavcodec/h264data.h

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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 Libav.

  6.  *

  7.  * Libav 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.  * Libav 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 Libav; 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 "h264.h"

  36. 

  37. static const uint8_t golomb_to_pict_type[5] = {

  38.     AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, AV_PICTURE_TYPE_I,

  39.     AV_PICTURE_TYPE_SP, AV_PICTURE_TYPE_SI

  40. };

  41. 

  42. static const uint8_t golomb_to_intra4x4_cbp[48] = {

  43.     47, 31, 15, 0,  23, 27, 29, 30, 7,  11, 13, 14, 39, 43, 45, 46,

  44.     16, 3,  5,  10, 12, 19, 21, 26, 28, 35, 37, 42, 44, 1,  2,  4,

  45.     8,  17, 18, 20, 24, 6,  9,  22, 25, 32, 33, 34, 36, 40, 38, 41

  46. };

  47. 

  48. static const uint8_t golomb_to_inter_cbp[48] = {

  49.     0,  16, 1,  2,  4,  8,  32, 3,  5,  10, 12, 15, 47, 7,  11, 13,

  50.     14, 6,  9,  31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46,

  51.     17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41

  52. };

  53. 

  54. static const uint8_t zigzag_scan[16] = {

  55.     0 + 0 * 4, 1 + 0 * 4, 0 + 1 * 4, 0 + 2 * 4,

  56.     1 + 1 * 4, 2 + 0 * 4, 3 + 0 * 4, 2 + 1 * 4,

  57.     1 + 2 * 4, 0 + 3 * 4, 1 + 3 * 4, 2 + 2 * 4,

  58.     3 + 1 * 4, 3 + 2 * 4, 2 + 3 * 4, 3 + 3 * 4,

  59. };

  60. 

  61. static const uint8_t chroma_dc_scan[4] = {

  62.     (0 + 0 * 2) * 16, (1 + 0 * 2) * 16,

  63.     (0 + 1 * 2) * 16, (1 + 1 * 2) * 16,

  64. };

  65. 

  66. static const uint8_t chroma422_dc_scan[8] = {

  67.     (0 + 0 * 2) * 16, (0 + 1 * 2) * 16,

  68.     (1 + 0 * 2) * 16, (0 + 2 * 2) * 16,

  69.     (0 + 3 * 2) * 16, (1 + 1 * 2) * 16,

  70.     (1 + 2 * 2) * 16, (1 + 3 * 2) * 16,

  71. };

  72. 

  73. typedef struct IMbInfo {

  74.     uint16_t type;

  75.     uint8_t pred_mode;

  76.     uint8_t cbp;

  77. } IMbInfo;

  78. 

  79. static const IMbInfo i_mb_type_info[26] = {

  80.     { MB_TYPE_INTRA4x4,  -1,  -1 },

  81.     { MB_TYPE_INTRA16x16, 2,   0 },

  82.     { MB_TYPE_INTRA16x16, 1,   0 },

  83.     { MB_TYPE_INTRA16x16, 0,   0 },

  84.     { MB_TYPE_INTRA16x16, 3,   0 },

  85.     { MB_TYPE_INTRA16x16, 2,  16 },

  86.     { MB_TYPE_INTRA16x16, 1,  16 },

  87.     { MB_TYPE_INTRA16x16, 0,  16 },

  88.     { MB_TYPE_INTRA16x16, 3,  16 },

  89.     { MB_TYPE_INTRA16x16, 2,  32 },

  90.     { MB_TYPE_INTRA16x16, 1,  32 },

  91.     { MB_TYPE_INTRA16x16, 0,  32 },

  92.     { MB_TYPE_INTRA16x16, 3,  32 },

  93.     { MB_TYPE_INTRA16x16, 2,  15 +  0 },

  94.     { MB_TYPE_INTRA16x16, 1,  15 +  0 },

  95.     { MB_TYPE_INTRA16x16, 0,  15 +  0 },

  96.     { MB_TYPE_INTRA16x16, 3,  15 +  0 },

  97.     { MB_TYPE_INTRA16x16, 2,  15 + 16 },

  98.     { MB_TYPE_INTRA16x16, 1,  15 + 16 },

  99.     { MB_TYPE_INTRA16x16, 0,  15 + 16 },

  100.     { MB_TYPE_INTRA16x16, 3,  15 + 16 },

  101.     { MB_TYPE_INTRA16x16, 2,  15 + 32 },

  102.     { MB_TYPE_INTRA16x16, 1,  15 + 32 },

  103.     { MB_TYPE_INTRA16x16, 0,  15 + 32 },

  104.     { MB_TYPE_INTRA16x16, 3,  15 + 32 },

  105.     { MB_TYPE_INTRA_PCM,  -1, -1 },

  106. };

  107. 

  108. typedef struct PMbInfo {

  109.     uint16_t type;

  110.     uint8_t partition_count;

  111. } PMbInfo;

  112. 

  113. static const PMbInfo p_mb_type_info[5] = {

  114.     { MB_TYPE_16x16 | MB_TYPE_P0L0,                               1 },

  115.     { MB_TYPE_16x8  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                2 },

  116.     { MB_TYPE_8x16  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                2 },

  117.     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P1L0,                4 },

  118.     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_REF0, 4 },

  119. };

  120. 

  121. static const PMbInfo p_sub_mb_type_info[4] = {

  122.     { MB_TYPE_16x16 | MB_TYPE_P0L0, 1 },

  123.     { MB_TYPE_16x8  | MB_TYPE_P0L0, 2 },

  124.     { MB_TYPE_8x16  | MB_TYPE_P0L0, 2 },

  125.     { MB_TYPE_8x8   | MB_TYPE_P0L0, 4 },

  126. };

  127. 

  128. static const PMbInfo b_mb_type_info[23] = {

  129.     { MB_TYPE_DIRECT2 | MB_TYPE_L0L1,                                              1, },

  130.     { MB_TYPE_16x16   | MB_TYPE_P0L0,                                              1, },

  131.     { MB_TYPE_16x16   | MB_TYPE_P0L1,                                              1, },

  132.     { MB_TYPE_16x16   | MB_TYPE_P0L0 | MB_TYPE_P0L1,                               1, },

  133.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },

  134.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },

  135.     { MB_TYPE_16x8    | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },

  136.     { MB_TYPE_8x16    | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },

  137.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P1L1,                               2, },

  138.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P1L1,                               2, },

  139.     { MB_TYPE_16x8    | MB_TYPE_P0L1 | MB_TYPE_P1L0,                               2, },

  140.     { MB_TYPE_8x16    | MB_TYPE_P0L1 | MB_TYPE_P1L0,                               2, },

  141.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },

  142.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },

  143.     { MB_TYPE_16x8    | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },

  144.     { MB_TYPE_8x16    | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },

  145.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0,                2, },

  146.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0,                2, },

  147.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1,                2, },

  148.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1,                2, },

  149.     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },

  150.     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },

  151.     { MB_TYPE_8x8     | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },

  152. };

  153. 

  154. static const PMbInfo b_sub_mb_type_info[13] = {

  155.     { MB_TYPE_DIRECT2,                                                           1, },

  156.     { MB_TYPE_16x16 | MB_TYPE_P0L0,                                              1, },

  157.     { MB_TYPE_16x16 | MB_TYPE_P0L1,                                              1, },

  158.     { MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1,                               1, },

  159.     { MB_TYPE_16x8  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },

  160.     { MB_TYPE_8x16  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },

  161.     { MB_TYPE_16x8  | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },

  162.     { MB_TYPE_8x16  | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },

  163.     { MB_TYPE_16x8  | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },

  164.     { MB_TYPE_8x16  | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },

  165.     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               4, },

  166.     { MB_TYPE_8x8   | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               4, },

  167.     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },

  168. };

  169. 

  170. #endif /* AVCODEC_H264DATA_H */