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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 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. #include "libavutil/rational.h"

  34. #include "mpegvideo.h"

  35. #include "h264.h"

  36. 

  37. 

  38. static const uint8_t golomb_to_pict_type[5]=

  39. {AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_SP, AV_PICTURE_TYPE_SI};

  40. 

  41. static const uint8_t golomb_to_intra4x4_cbp[48]={

  42.  47, 31, 15,  0, 23, 27, 29, 30,  7, 11, 13, 14, 39, 43, 45, 46,

  43.  16,  3,  5, 10, 12, 19, 21, 26, 28, 35, 37, 42, 44,  1,  2,  4,

  44.   8, 17, 18, 20, 24,  6,  9, 22, 25, 32, 33, 34, 36, 40, 38, 41

  45. };

  46. 

  47. static const uint8_t golomb_to_inter_cbp[48]={

  48.   0, 16,  1,  2,  4,  8, 32,  3,  5, 10, 12, 15, 47,  7, 11, 13,

  49.  14,  6,  9, 31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46,

  50.  17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41

  51. };

  52. 

  53. static const uint8_t zigzag_scan[16]={

  54.  0+0*4, 1+0*4, 0+1*4, 0+2*4,

  55.  1+1*4, 2+0*4, 3+0*4, 2+1*4,

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

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

  58. };

  59. 

  60. static const uint8_t field_scan[16]={

  61.  0+0*4, 0+1*4, 1+0*4, 0+2*4,

  62.  0+3*4, 1+1*4, 1+2*4, 1+3*4,

  63.  2+0*4, 2+1*4, 2+2*4, 2+3*4,

  64.  3+0*4, 3+1*4, 3+2*4, 3+3*4,

  65. };

  66. 

  67. static const uint8_t luma_dc_zigzag_scan[16]={

  68.  0*16 + 0*64, 1*16 + 0*64, 2*16 + 0*64, 0*16 + 2*64,

  69.  3*16 + 0*64, 0*16 + 1*64, 1*16 + 1*64, 2*16 + 1*64,

  70.  1*16 + 2*64, 2*16 + 2*64, 3*16 + 2*64, 0*16 + 3*64,

  71.  3*16 + 1*64, 1*16 + 3*64, 2*16 + 3*64, 3*16 + 3*64,

  72. };

  73. 

  74. static const uint8_t luma_dc_field_scan[16]={

  75.  0*16 + 0*64, 2*16 + 0*64, 1*16 + 0*64, 0*16 + 2*64,

  76.  2*16 + 2*64, 3*16 + 0*64, 1*16 + 2*64, 3*16 + 2*64,

  77.  0*16 + 1*64, 2*16 + 1*64, 0*16 + 3*64, 2*16 + 3*64,

  78.  1*16 + 1*64, 3*16 + 1*64, 1*16 + 3*64, 3*16 + 3*64,

  79. };

  80. 

  81. static const uint8_t chroma_dc_scan[4]={

  82.  (0+0*2)*16, (1+0*2)*16,

  83.  (0+1*2)*16, (1+1*2)*16,

  84. };

  85. 

  86. static const uint8_t chroma422_dc_scan[8]={

  87.  (0+0*2)*16, (0+1*2)*16,

  88.  (1+0*2)*16, (0+2*2)*16,

  89.  (0+3*2)*16, (1+1*2)*16,

  90.  (1+2*2)*16, (1+3*2)*16,

  91. };

  92. 

  93. // zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]

  94. static const uint8_t zigzag_scan8x8_cavlc[64]={

  95.  0+0*8, 1+1*8, 1+2*8, 2+2*8,

  96.  4+1*8, 0+5*8, 3+3*8, 7+0*8,

  97.  3+4*8, 1+7*8, 5+3*8, 6+3*8,

  98.  2+7*8, 6+4*8, 5+6*8, 7+5*8,

  99.  1+0*8, 2+0*8, 0+3*8, 3+1*8,

  100.  3+2*8, 0+6*8, 4+2*8, 6+1*8,

  101.  2+5*8, 2+6*8, 6+2*8, 5+4*8,

  102.  3+7*8, 7+3*8, 4+7*8, 7+6*8,

  103.  0+1*8, 3+0*8, 0+4*8, 4+0*8,

  104.  2+3*8, 1+5*8, 5+1*8, 5+2*8,

  105.  1+6*8, 3+5*8, 7+1*8, 4+5*8,

  106.  4+6*8, 7+4*8, 5+7*8, 6+7*8,

  107.  0+2*8, 2+1*8, 1+3*8, 5+0*8,

  108.  1+4*8, 2+4*8, 6+0*8, 4+3*8,

  109.  0+7*8, 4+4*8, 7+2*8, 3+6*8,

  110.  5+5*8, 6+5*8, 6+6*8, 7+7*8,

  111. };

  112. 

  113. static const uint8_t field_scan8x8[64]={

  114.  0+0*8, 0+1*8, 0+2*8, 1+0*8,

  115.  1+1*8, 0+3*8, 0+4*8, 1+2*8,

  116.  2+0*8, 1+3*8, 0+5*8, 0+6*8,

  117.  0+7*8, 1+4*8, 2+1*8, 3+0*8,

  118.  2+2*8, 1+5*8, 1+6*8, 1+7*8,

  119.  2+3*8, 3+1*8, 4+0*8, 3+2*8,

  120.  2+4*8, 2+5*8, 2+6*8, 2+7*8,

  121.  3+3*8, 4+1*8, 5+0*8, 4+2*8,

  122.  3+4*8, 3+5*8, 3+6*8, 3+7*8,

  123.  4+3*8, 5+1*8, 6+0*8, 5+2*8,

  124.  4+4*8, 4+5*8, 4+6*8, 4+7*8,

  125.  5+3*8, 6+1*8, 6+2*8, 5+4*8,

  126.  5+5*8, 5+6*8, 5+7*8, 6+3*8,

  127.  7+0*8, 7+1*8, 6+4*8, 6+5*8,

  128.  6+6*8, 6+7*8, 7+2*8, 7+3*8,

  129.  7+4*8, 7+5*8, 7+6*8, 7+7*8,

  130. };

  131. 

  132. static const uint8_t field_scan8x8_cavlc[64]={

  133.  0+0*8, 1+1*8, 2+0*8, 0+7*8,

  134.  2+2*8, 2+3*8, 2+4*8, 3+3*8,

  135.  3+4*8, 4+3*8, 4+4*8, 5+3*8,

  136.  5+5*8, 7+0*8, 6+6*8, 7+4*8,

  137.  0+1*8, 0+3*8, 1+3*8, 1+4*8,

  138.  1+5*8, 3+1*8, 2+5*8, 4+1*8,

  139.  3+5*8, 5+1*8, 4+5*8, 6+1*8,

  140.  5+6*8, 7+1*8, 6+7*8, 7+5*8,

  141.  0+2*8, 0+4*8, 0+5*8, 2+1*8,

  142.  1+6*8, 4+0*8, 2+6*8, 5+0*8,

  143.  3+6*8, 6+0*8, 4+6*8, 6+2*8,

  144.  5+7*8, 6+4*8, 7+2*8, 7+6*8,

  145.  1+0*8, 1+2*8, 0+6*8, 3+0*8,

  146.  1+7*8, 3+2*8, 2+7*8, 4+2*8,

  147.  3+7*8, 5+2*8, 4+7*8, 5+4*8,

  148.  6+3*8, 6+5*8, 7+3*8, 7+7*8,

  149. };

  150. 

  151. typedef struct IMbInfo{

  152.     uint16_t type;

  153.     uint8_t pred_mode;

  154.     uint8_t cbp;

  155. } IMbInfo;

  156. 

  157. static const IMbInfo i_mb_type_info[26]={

  158. {MB_TYPE_INTRA4x4  , -1, -1},

  159. {MB_TYPE_INTRA16x16,  2,  0},

  160. {MB_TYPE_INTRA16x16,  1,  0},

  161. {MB_TYPE_INTRA16x16,  0,  0},

  162. {MB_TYPE_INTRA16x16,  3,  0},

  163. {MB_TYPE_INTRA16x16,  2,  16},

  164. {MB_TYPE_INTRA16x16,  1,  16},

  165. {MB_TYPE_INTRA16x16,  0,  16},

  166. {MB_TYPE_INTRA16x16,  3,  16},

  167. {MB_TYPE_INTRA16x16,  2,  32},

  168. {MB_TYPE_INTRA16x16,  1,  32},

  169. {MB_TYPE_INTRA16x16,  0,  32},

  170. {MB_TYPE_INTRA16x16,  3,  32},

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

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

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

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

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

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

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

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

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

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

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

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

  183. {MB_TYPE_INTRA_PCM , -1, -1},

  184. };

  185. 

  186. typedef struct PMbInfo{

  187.     uint16_t type;

  188.     uint8_t partition_count;

  189. } PMbInfo;

  190. 

  191. static const PMbInfo p_mb_type_info[5]={

  192. {MB_TYPE_16x16|MB_TYPE_P0L0             , 1},

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

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

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

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

  197. };

  198. 

  199. static const PMbInfo p_sub_mb_type_info[4]={

  200. {MB_TYPE_16x16|MB_TYPE_P0L0             , 1},

  201. {MB_TYPE_16x8 |MB_TYPE_P0L0             , 2},

  202. {MB_TYPE_8x16 |MB_TYPE_P0L0             , 2},

  203. {MB_TYPE_8x8  |MB_TYPE_P0L0             , 4},

  204. };

  205. 

  206. static const PMbInfo b_mb_type_info[23]={

  207. {MB_TYPE_DIRECT2|MB_TYPE_L0L1                                      , 1, },

  208. {MB_TYPE_16x16|MB_TYPE_P0L0                                       , 1, },

  209. {MB_TYPE_16x16             |MB_TYPE_P0L1                          , 1, },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  230. };

  231. 

  232. static const PMbInfo b_sub_mb_type_info[13]={

  233. {MB_TYPE_DIRECT2                                                   , 1, },

  234. {MB_TYPE_16x16|MB_TYPE_P0L0                                       , 1, },

  235. {MB_TYPE_16x16             |MB_TYPE_P0L1                          , 1, },

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

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

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

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

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

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

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

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

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

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

  246. };

  247. 

  248. static const uint8_t dequant4_coeff_init[6][3]={

  249.   {10,13,16},

  250.   {11,14,18},

  251.   {13,16,20},

  252.   {14,18,23},

  253.   {16,20,25},

  254.   {18,23,29},

  255. };

  256. 

  257. static const uint8_t dequant8_coeff_init_scan[16] = {

  258.   0,3,4,3, 3,1,5,1, 4,5,2,5, 3,1,5,1

  259. };

  260. static const uint8_t dequant8_coeff_init[6][6]={

  261.   {20,18,32,19,25,24},

  262.   {22,19,35,21,28,26},

  263.   {26,23,42,24,33,31},

  264.   {28,25,45,26,35,33},

  265.   {32,28,51,30,40,38},

  266.   {36,32,58,34,46,43},

  267. };

  268. 

  269. #endif /* AVCODEC_H264DATA_H */