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FFmpeg/libavcodec/mpeg4data.h

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  1. /*

  2.  * copyright (c) 2000,2001 Fabrice Bellard

  3.  * H263+ support

  4.  * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>

  5.  *

  6.  * This file is part of FFmpeg.

  7.  *

  8.  * FFmpeg is free software; you can redistribute it and/or

  9.  * modify it under the terms of the GNU Lesser General Public

  10.  * License as published by the Free Software Foundation; either

  11.  * version 2.1 of the License, or (at your option) any later version.

  12.  *

  13.  * FFmpeg is distributed in the hope that it will be useful,

  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  16.  * Lesser General Public License for more details.

  17.  *

  18.  * You should have received a copy of the GNU Lesser General Public

  19.  * License along with FFmpeg; if not, write to the Free Software

  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  21.  */

  22. 

  23. /**

  24.  * @file mpeg4data.h

  25.  * mpeg4 tables.

  26.  */

  27. 

  28. #include <stdint.h>

  29. #include "mpegvideo.h"

  30. 

  31. // shapes

  32. #define RECT_SHAPE       0

  33. #define BIN_SHAPE        1

  34. #define BIN_ONLY_SHAPE   2

  35. #define GRAY_SHAPE       3

  36. 

  37. #define SIMPLE_VO_TYPE             1

  38. #define CORE_VO_TYPE               3

  39. #define MAIN_VO_TYPE               4

  40. #define NBIT_VO_TYPE               5

  41. #define ARTS_VO_TYPE               10

  42. #define ACE_VO_TYPE                12

  43. #define ADV_SIMPLE_VO_TYPE         17

  44. 

  45. // aspect_ratio_info

  46. #define EXTENDED_PAR 15

  47. 

  48. //vol_sprite_usage / sprite_enable

  49. #define STATIC_SPRITE 1

  50. #define GMC_SPRITE 2

  51. 

  52. #define MOTION_MARKER 0x1F001

  53. #define DC_MARKER     0x6B001

  54. 

  55. static const int mb_type_b_map[4]= {

  56.     MB_TYPE_DIRECT2 | MB_TYPE_L0L1,

  57.     MB_TYPE_L0L1 | MB_TYPE_16x16,

  58.     MB_TYPE_L1 | MB_TYPE_16x16,

  59.     MB_TYPE_L0 | MB_TYPE_16x16,

  60. };

  61. 

  62. #define VOS_STARTCODE        0x1B0

  63. #define USER_DATA_STARTCODE  0x1B2

  64. #define GOP_STARTCODE        0x1B3

  65. #define VISUAL_OBJ_STARTCODE 0x1B5

  66. #define VOP_STARTCODE        0x1B6

  67. 

  68. /* dc encoding for mpeg4 */

  69. const uint8_t DCtab_lum[13][2] =

  70. {

  71.     {3,3}, {3,2}, {2,2}, {2,3}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7},

  72.     {1,8}, {1,9}, {1,10}, {1,11},

  73. };

  74. 

  75. const uint8_t DCtab_chrom[13][2] =

  76. {

  77.     {3,2}, {2,2}, {1,2}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7}, {1,8},

  78.     {1,9}, {1,10}, {1,11}, {1,12},

  79. };

  80. 

  81. const uint16_t intra_vlc[103][2] = {

  82. { 0x2, 2 },

  83. { 0x6, 3 },{ 0xf, 4 },{ 0xd, 5 },{ 0xc, 5 },

  84. { 0x15, 6 },{ 0x13, 6 },{ 0x12, 6 },{ 0x17, 7 },

  85. { 0x1f, 8 },{ 0x1e, 8 },{ 0x1d, 8 },{ 0x25, 9 },

  86. { 0x24, 9 },{ 0x23, 9 },{ 0x21, 9 },{ 0x21, 10 },

  87. { 0x20, 10 },{ 0xf, 10 },{ 0xe, 10 },{ 0x7, 11 },

  88. { 0x6, 11 },{ 0x20, 11 },{ 0x21, 11 },{ 0x50, 12 },

  89. { 0x51, 12 },{ 0x52, 12 },{ 0xe, 4 },{ 0x14, 6 },

  90. { 0x16, 7 },{ 0x1c, 8 },{ 0x20, 9 },{ 0x1f, 9 },

  91. { 0xd, 10 },{ 0x22, 11 },{ 0x53, 12 },{ 0x55, 12 },

  92. { 0xb, 5 },{ 0x15, 7 },{ 0x1e, 9 },{ 0xc, 10 },

  93. { 0x56, 12 },{ 0x11, 6 },{ 0x1b, 8 },{ 0x1d, 9 },

  94. { 0xb, 10 },{ 0x10, 6 },{ 0x22, 9 },{ 0xa, 10 },

  95. { 0xd, 6 },{ 0x1c, 9 },{ 0x8, 10 },{ 0x12, 7 },

  96. { 0x1b, 9 },{ 0x54, 12 },{ 0x14, 7 },{ 0x1a, 9 },

  97. { 0x57, 12 },{ 0x19, 8 },{ 0x9, 10 },{ 0x18, 8 },

  98. { 0x23, 11 },{ 0x17, 8 },{ 0x19, 9 },{ 0x18, 9 },

  99. { 0x7, 10 },{ 0x58, 12 },{ 0x7, 4 },{ 0xc, 6 },

  100. { 0x16, 8 },{ 0x17, 9 },{ 0x6, 10 },{ 0x5, 11 },

  101. { 0x4, 11 },{ 0x59, 12 },{ 0xf, 6 },{ 0x16, 9 },

  102. { 0x5, 10 },{ 0xe, 6 },{ 0x4, 10 },{ 0x11, 7 },

  103. { 0x24, 11 },{ 0x10, 7 },{ 0x25, 11 },{ 0x13, 7 },

  104. { 0x5a, 12 },{ 0x15, 8 },{ 0x5b, 12 },{ 0x14, 8 },

  105. { 0x13, 8 },{ 0x1a, 8 },{ 0x15, 9 },{ 0x14, 9 },

  106. { 0x13, 9 },{ 0x12, 9 },{ 0x11, 9 },{ 0x26, 11 },

  107. { 0x27, 11 },{ 0x5c, 12 },{ 0x5d, 12 },{ 0x5e, 12 },

  108. { 0x5f, 12 },{ 0x3, 7 },

  109. };

  110. 

  111. const int8_t intra_level[102] = {

  112.   1,  2,  3,  4,  5,  6,  7,  8,

  113.   9, 10, 11, 12, 13, 14, 15, 16,

  114.  17, 18, 19, 20, 21, 22, 23, 24,

  115.  25, 26, 27,  1,  2,  3,  4,  5,

  116.   6,  7,  8,  9, 10,  1,  2,  3,

  117.   4,  5,  1,  2,  3,  4,  1,  2,

  118.   3,  1,  2,  3,  1,  2,  3,  1,

  119.   2,  3,  1,  2,  1,  2,  1,  1,

  120.   1,  1,  1,  1,  2,  3,  4,  5,

  121.   6,  7,  8,  1,  2,  3,  1,  2,

  122.   1,  2,  1,  2,  1,  2,  1,  2,

  123.   1,  1,  1,  1,  1,  1,  1,  1,

  124.   1,  1,  1,  1,  1,  1,

  125. };

  126. 

  127. const int8_t intra_run[102] = {

  128.   0,  0,  0,  0,  0,  0,  0,  0,

  129.   0,  0,  0,  0,  0,  0,  0,  0,

  130.   0,  0,  0,  0,  0,  0,  0,  0,

  131.   0,  0,  0,  1,  1,  1,  1,  1,

  132.   1,  1,  1,  1,  1,  2,  2,  2,

  133.   2,  2,  3,  3,  3,  3,  4,  4,

  134.   4,  5,  5,  5,  6,  6,  6,  7,

  135.   7,  7,  8,  8,  9,  9, 10, 11,

  136.  12, 13, 14,  0,  0,  0,  0,  0,

  137.   0,  0,  0,  1,  1,  1,  2,  2,

  138.   3,  3,  4,  4,  5,  5,  6,  6,

  139.   7,  8,  9, 10, 11, 12, 13, 14,

  140.  15, 16, 17, 18, 19, 20,

  141. };

  142. 

  143. static RLTable rl_intra = {

  144.     102,

  145.     67,

  146.     intra_vlc,

  147.     intra_run,

  148.     intra_level,

  149. };

  150. 

  151. /* Note this is identical to the intra rvlc except that it is reordered. */

  152. static const uint16_t inter_rvlc[170][2]={

  153. {0x0006,  3},{0x0001,  4},{0x0004,  5},{0x001C,  7},

  154. {0x003C,  8},{0x003D,  8},{0x007C,  9},{0x00FC, 10},

  155. {0x00FD, 10},{0x01FC, 11},{0x01FD, 11},{0x03FC, 12},

  156. {0x07FC, 13},{0x07FD, 13},{0x0BFC, 13},{0x0BFD, 13},

  157. {0x0FFC, 14},{0x0FFD, 14},{0x1FFC, 15},{0x0007,  3},

  158. {0x000C,  6},{0x005C,  8},{0x007D,  9},{0x017C, 10},

  159. {0x02FC, 11},{0x03FD, 12},{0x0DFC, 13},{0x17FC, 14},

  160. {0x17FD, 14},{0x000A,  4},{0x001D,  7},{0x00BC,  9},

  161. {0x02FD, 11},{0x05FC, 12},{0x1BFC, 14},{0x1BFD, 14},

  162. {0x0005,  5},{0x005D,  8},{0x017D, 10},{0x05FD, 12},

  163. {0x0DFD, 13},{0x1DFC, 14},{0x1FFD, 15},{0x0008,  5},

  164. {0x006C,  8},{0x037C, 11},{0x0EFC, 13},{0x2FFC, 15},

  165. {0x0009,  5},{0x00BD,  9},{0x037D, 11},{0x0EFD, 13},

  166. {0x000D,  6},{0x01BC, 10},{0x06FC, 12},{0x1DFD, 14},

  167. {0x0014,  6},{0x01BD, 10},{0x06FD, 12},{0x2FFD, 15},

  168. {0x0015,  6},{0x01DC, 10},{0x0F7C, 13},{0x002C,  7},

  169. {0x01DD, 10},{0x1EFC, 14},{0x002D,  7},{0x03BC, 11},

  170. {0x0034,  7},{0x077C, 12},{0x006D,  8},{0x0F7D, 13},

  171. {0x0074,  8},{0x1EFD, 14},{0x0075,  8},{0x1F7C, 14},

  172. {0x00DC,  9},{0x1F7D, 14},{0x00DD,  9},{0x1FBC, 14},

  173. {0x00EC,  9},{0x37FC, 15},{0x01EC, 10},{0x01ED, 10},

  174. {0x01F4, 10},{0x03BD, 11},{0x03DC, 11},{0x03DD, 11},

  175. {0x03EC, 11},{0x03ED, 11},{0x03F4, 11},{0x077D, 12},

  176. {0x07BC, 12},{0x07BD, 12},{0x0FBC, 13},{0x0FBD, 13},

  177. {0x0FDC, 13},{0x0FDD, 13},{0x1FBD, 14},{0x1FDC, 14},

  178. {0x1FDD, 14},{0x37FD, 15},{0x3BFC, 15},

  179. {0x000B,  4},{0x0078,  8},{0x03F5, 11},{0x0FEC, 13},

  180. {0x1FEC, 14},{0x0012,  5},{0x00ED,  9},{0x07DC, 12},

  181. {0x1FED, 14},{0x3BFD, 15},{0x0013,  5},{0x03F8, 11},

  182. {0x3DFC, 15},{0x0018,  6},{0x07DD, 12},{0x0019,  6},

  183. {0x07EC, 12},{0x0022,  6},{0x0FED, 13},{0x0023,  6},

  184. {0x0FF4, 13},{0x0035,  7},{0x0FF5, 13},{0x0038,  7},

  185. {0x0FF8, 13},{0x0039,  7},{0x0FF9, 13},{0x0042,  7},

  186. {0x1FF4, 14},{0x0043,  7},{0x1FF5, 14},{0x0079,  8},

  187. {0x1FF8, 14},{0x0082,  8},{0x3DFD, 15},{0x0083,  8},

  188. {0x00F4,  9},{0x00F5,  9},{0x00F8,  9},{0x00F9,  9},

  189. {0x0102,  9},{0x0103,  9},{0x01F5, 10},{0x01F8, 10},

  190. {0x01F9, 10},{0x0202, 10},{0x0203, 10},{0x03F9, 11},

  191. {0x0402, 11},{0x0403, 11},{0x07ED, 12},{0x07F4, 12},

  192. {0x07F5, 12},{0x07F8, 12},{0x07F9, 12},{0x0802, 12},

  193. {0x0803, 12},{0x1002, 13},{0x1003, 13},{0x1FF9, 14},

  194. {0x2002, 14},{0x2003, 14},{0x3EFC, 15},{0x3EFD, 15},

  195. {0x3F7C, 15},{0x3F7D, 15},{0x0000, 4}

  196. };

  197. 

  198. static const int8_t inter_rvlc_run[169]={

  199.  0,  0,  0,  0,  0,  0,  0,  0,

  200.  0,  0,  0,  0,  0,  0,  0,  0,

  201.  0,  0,  0,  1,  1,  1,  1,  1,

  202.  1,  1,  1,  1,  1,  2,  2,  2,

  203.  2,  2,  2,  2,  3,  3,  3,  3,

  204.  3,  3,  3,  4,  4,  4,  4,  4,

  205.  5,  5,  5,  5,  6,  6,  6,  6,

  206.  7,  7,  7,  7,  8,  8,  8,  9,

  207.  9,  9, 10, 10, 11, 11, 12, 12,

  208. 13, 13, 14, 14, 15, 15, 16, 16,

  209. 17, 17, 18, 19, 20, 21, 22, 23,

  210. 24, 25, 26, 27, 28, 29, 30, 31,

  211. 32, 33, 34, 35, 36, 37, 38,

  212.  0,  0,  0,  0,  0,  1,  1,  1,

  213.  1,  1,  2,  2,  2,  3,  3,  4,

  214.  4,  5,  5,  6,  6,  7,  7,  8,

  215.  8,  9,  9, 10, 10, 11, 11, 12,

  216. 12, 13, 13, 14, 15, 16, 17, 18,

  217. 19, 20, 21, 22, 23, 24, 25, 26,

  218. 27, 28, 29, 30, 31, 32, 33, 34,

  219. 35, 36, 37, 38, 39, 40, 41, 42,

  220. 43, 44,

  221. };

  222. 

  223. static const int8_t inter_rvlc_level[169]={

  224.  1,  2,  3,  4,  5,  6,  7,  8,

  225.  9, 10, 11, 12, 13, 14, 15, 16,

  226. 17, 18, 19,  1,  2,  3,  4,  5,

  227.  6,  7,  8,  9, 10,  1,  2,  3,

  228.  4,  5,  6,  7,  1,  2,  3,  4,

  229.  5,  6,  7,  1,  2,  3,  4,  5,

  230.  1,  2,  3,  4,  1,  2,  3,  4,

  231.  1,  2,  3,  4,  1,  2,  3,  1,

  232.  2,  3,  1,  2,  1,  2,  1,  2,

  233.  1,  2,  1,  2,  1,  2,  1,  2,

  234.  1,  2,  1,  1,  1,  1,  1,  1,

  235.  1,  1,  1,  1,  1,  1,  1,  1,

  236.  1,  1,  1,  1,  1,  1,  1,

  237.  1,  2,  3,  4,  5,  1,  2,  3,

  238.  4,  5,  1,  2,  3,  1,  2,  1,

  239.  2,  1,  2,  1,  2,  1,  2,  1,

  240.  2,  1,  2,  1,  2,  1,  2,  1,

  241.  2,  1,  2,  1,  1,  1,  1,  1,

  242.  1,  1,  1,  1,  1,  1,  1,  1,

  243.  1,  1,  1,  1,  1,  1,  1,  1,

  244.  1,  1,  1,  1,  1,  1,  1,  1,

  245.  1,  1,

  246. };

  247. 

  248. static RLTable rvlc_rl_inter = {

  249.     169,

  250.     103,

  251.     inter_rvlc,

  252.     inter_rvlc_run,

  253.     inter_rvlc_level,

  254. };

  255. 

  256. static const uint16_t intra_rvlc[170][2]={

  257. {0x0006,  3},{0x0007,  3},{0x000A,  4},{0x0009,  5},

  258. {0x0014,  6},{0x0015,  6},{0x0034,  7},{0x0074,  8},

  259. {0x0075,  8},{0x00DD,  9},{0x00EC,  9},{0x01EC, 10},

  260. {0x01ED, 10},{0x01F4, 10},{0x03EC, 11},{0x03ED, 11},

  261. {0x03F4, 11},{0x077D, 12},{0x07BC, 12},{0x0FBD, 13},

  262. {0x0FDC, 13},{0x07BD, 12},{0x0FDD, 13},{0x1FBD, 14},

  263. {0x1FDC, 14},{0x1FDD, 14},{0x1FFC, 15},{0x0001,  4},

  264. {0x0008,  5},{0x002D,  7},{0x006C,  8},{0x006D,  8},

  265. {0x00DC,  9},{0x01DD, 10},{0x03DC, 11},{0x03DD, 11},

  266. {0x077C, 12},{0x0FBC, 13},{0x1F7D, 14},{0x1FBC, 14},

  267. {0x0004,  5},{0x002C,  7},{0x00BC,  9},{0x01DC, 10},

  268. {0x03BC, 11},{0x03BD, 11},{0x0EFD, 13},{0x0F7C, 13},

  269. {0x0F7D, 13},{0x1EFD, 14},{0x1F7C, 14},{0x0005,  5},

  270. {0x005C,  8},{0x00BD,  9},{0x037D, 11},{0x06FC, 12},

  271. {0x0EFC, 13},{0x1DFD, 14},{0x1EFC, 14},{0x1FFD, 15},

  272. {0x000C,  6},{0x005D,  8},{0x01BD, 10},{0x03FD, 12},

  273. {0x06FD, 12},{0x1BFD, 14},{0x000D,  6},{0x007D,  9},

  274. {0x02FC, 11},{0x05FC, 12},{0x1BFC, 14},{0x1DFC, 14},

  275. {0x001C,  7},{0x017C, 10},{0x02FD, 11},{0x05FD, 12},

  276. {0x2FFC, 15},{0x001D,  7},{0x017D, 10},{0x037C, 11},

  277. {0x0DFD, 13},{0x2FFD, 15},{0x003C,  8},{0x01BC, 10},

  278. {0x0BFD, 13},{0x17FD, 14},{0x003D,  8},{0x01FD, 11},

  279. {0x0DFC, 13},{0x37FC, 15},{0x007C,  9},{0x03FC, 12},

  280. {0x00FC, 10},{0x0BFC, 13},{0x00FD, 10},{0x37FD, 15},

  281. {0x01FC, 11},{0x07FC, 13},{0x07FD, 13},{0x0FFC, 14},

  282. {0x0FFD, 14},{0x17FC, 14},{0x3BFC, 15},

  283. {0x000B,  4},{0x0078,  8},{0x03F5, 11},{0x0FEC, 13},

  284. {0x1FEC, 14},{0x0012,  5},{0x00ED,  9},{0x07DC, 12},

  285. {0x1FED, 14},{0x3BFD, 15},{0x0013,  5},{0x03F8, 11},

  286. {0x3DFC, 15},{0x0018,  6},{0x07DD, 12},{0x0019,  6},

  287. {0x07EC, 12},{0x0022,  6},{0x0FED, 13},{0x0023,  6},

  288. {0x0FF4, 13},{0x0035,  7},{0x0FF5, 13},{0x0038,  7},

  289. {0x0FF8, 13},{0x0039,  7},{0x0FF9, 13},{0x0042,  7},

  290. {0x1FF4, 14},{0x0043,  7},{0x1FF5, 14},{0x0079,  8},

  291. {0x1FF8, 14},{0x0082,  8},{0x3DFD, 15},{0x0083,  8},

  292. {0x00F4,  9},{0x00F5,  9},{0x00F8,  9},{0x00F9,  9},

  293. {0x0102,  9},{0x0103,  9},{0x01F5, 10},{0x01F8, 10},

  294. {0x01F9, 10},{0x0202, 10},{0x0203, 10},{0x03F9, 11},

  295. {0x0402, 11},{0x0403, 11},{0x07ED, 12},{0x07F4, 12},

  296. {0x07F5, 12},{0x07F8, 12},{0x07F9, 12},{0x0802, 12},

  297. {0x0803, 12},{0x1002, 13},{0x1003, 13},{0x1FF9, 14},

  298. {0x2002, 14},{0x2003, 14},{0x3EFC, 15},{0x3EFD, 15},

  299. {0x3F7C, 15},{0x3F7D, 15},{0x0000,  4}

  300. };

  301. 

  302. static const int8_t intra_rvlc_run[169]={

  303.  0,  0,  0,  0,  0,  0,  0,  0,

  304.  0,  0,  0,  0,  0,  0,  0,  0,

  305.  0,  0,  0,  0,  0,  0,  0,  0,

  306.  0,  0,  0,  1,  1,  1,  1,  1,

  307.  1,  1,  1,  1,  1,  1,  1,  1,

  308.  2,  2,  2,  2,  2,  2,  2,  2,

  309.  2,  2,  2,  3,  3,  3,  3,  3,

  310.  3,  3,  3,  3,  4,  4,  4,  4,

  311.  4,  4,  5,  5,  5,  5,  5,  5,

  312.  6,  6,  6,  6,  6,  7,  7,  7,

  313.  7,  7,  8,  8,  8,  8,  9,  9,

  314.  9,  9, 10, 10, 11, 11, 12, 12,

  315. 13, 14, 15, 16, 17, 18, 19,

  316.  0,  0,  0,  0,  0,  1,  1,  1,

  317.  1,  1,  2,  2,  2,  3,  3,  4,

  318.  4,  5,  5,  6,  6,  7,  7,  8,

  319.  8,  9,  9, 10, 10, 11, 11, 12,

  320. 12, 13, 13, 14, 15, 16, 17, 18,

  321. 19, 20, 21, 22, 23, 24, 25, 26,

  322. 27, 28, 29, 30, 31, 32, 33, 34,

  323. 35, 36, 37, 38, 39, 40, 41, 42,

  324. 43, 44,

  325. };

  326. 

  327. static const int8_t intra_rvlc_level[169]={

  328.  1,  2,  3,  4,  5,  6,  7,  8,

  329.  9, 10, 11, 12, 13, 14, 15, 16,

  330. 17, 18, 19, 20, 21, 22, 23, 24,

  331. 25, 26, 27,  1,  2,  3,  4,  5,

  332.  6,  7,  8,  9, 10, 11, 12, 13,

  333.  1,  2,  3,  4,  5,  6,  7,  8,

  334.  9, 10, 11,  1,  2,  3,  4,  5,

  335.  6,  7,  8,  9,  1,  2,  3,  4,

  336.  5,  6,  1,  2,  3,  4,  5,  6,

  337.  1,  2,  3,  4,  5,  1,  2,  3,

  338.  4,  5,  1,  2,  3,  4,  1,  2,

  339.  3,  4,  1,  2,  1,  2,  1,  2,

  340.  1,  1,  1,  1,  1,  1,  1,

  341.  1,  2,  3,  4,  5,  1,  2,  3,

  342.  4,  5,  1,  2,  3,  1,  2,  1,

  343.  2,  1,  2,  1,  2,  1,  2,  1,

  344.  2,  1,  2,  1,  2,  1,  2,  1,

  345.  2,  1,  2,  1,  1,  1,  1,  1,

  346.  1,  1,  1,  1,  1,  1,  1,  1,

  347.  1,  1,  1,  1,  1,  1,  1,  1,

  348.  1,  1,  1,  1,  1,  1,  1,  1,

  349.  1,  1,

  350. };

  351. 

  352. static RLTable rvlc_rl_intra = {

  353.     169,

  354.     103,

  355.     intra_rvlc,

  356.     intra_rvlc_run,

  357.     intra_rvlc_level,

  358. };

  359. 

  360. static const uint16_t sprite_trajectory_tab[15][2] = {

  361.  {0x00, 2}, {0x02, 3},  {0x03, 3},  {0x04, 3}, {0x05, 3}, {0x06, 3},

  362.  {0x0E, 4}, {0x1E, 5},  {0x3E, 6},  {0x7E, 7}, {0xFE, 8},

  363.  {0x1FE, 9},{0x3FE, 10},{0x7FE, 11},{0xFFE, 12},

  364. };

  365. 

  366. static const uint8_t mb_type_b_tab[4][2] = {

  367.  {1, 1}, {1, 2}, {1, 3}, {1, 4},

  368. };

  369. 

  370. static const AVRational pixel_aspect[16]={

  371.  {0, 1},

  372.  {1, 1},

  373.  {12, 11},

  374.  {10, 11},

  375.  {16, 11},

  376.  {40, 33},

  377.  {0, 1},

  378.  {0, 1},

  379.  {0, 1},

  380.  {0, 1},

  381.  {0, 1},

  382.  {0, 1},

  383.  {0, 1},

  384.  {0, 1},

  385.  {0, 1},

  386.  {0, 1},

  387. };

  388. 

  389. /* these matrixes will be permuted for the idct */

  390. const int16_t ff_mpeg4_default_intra_matrix[64] = {

  391.   8, 17, 18, 19, 21, 23, 25, 27,

  392.  17, 18, 19, 21, 23, 25, 27, 28,

  393.  20, 21, 22, 23, 24, 26, 28, 30,

  394.  21, 22, 23, 24, 26, 28, 30, 32,

  395.  22, 23, 24, 26, 28, 30, 32, 35,

  396.  23, 24, 26, 28, 30, 32, 35, 38,

  397.  25, 26, 28, 30, 32, 35, 38, 41,

  398.  27, 28, 30, 32, 35, 38, 41, 45,

  399. };

  400. 

  401. const int16_t ff_mpeg4_default_non_intra_matrix[64] = {

  402.  16, 17, 18, 19, 20, 21, 22, 23,

  403.  17, 18, 19, 20, 21, 22, 23, 24,

  404.  18, 19, 20, 21, 22, 23, 24, 25,

  405.  19, 20, 21, 22, 23, 24, 26, 27,

  406.  20, 21, 22, 23, 25, 26, 27, 28,

  407.  21, 22, 23, 24, 26, 27, 28, 30,

  408.  22, 23, 24, 26, 27, 28, 30, 31,

  409.  23, 24, 25, 27, 28, 30, 31, 33,

  410. };

  411. 

  412. const uint8_t ff_mpeg4_y_dc_scale_table[32]={

  413. //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

  414.     0, 8, 8, 8, 8,10,12,14,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,34,36,38,40,42,44,46

  415. };

  416. const uint8_t ff_mpeg4_c_dc_scale_table[32]={

  417. //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

  418.     0, 8, 8, 8, 8, 9, 9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,20,21,22,23,24,25

  419. };

  420. 

  421. const uint16_t ff_mpeg4_resync_prefix[8]={

  422.     0x7F00, 0x7E00, 0x7C00, 0x7800, 0x7000, 0x6000, 0x4000, 0x0000

  423. };

  424. 

  425. static const uint8_t mpeg4_dc_threshold[8]={

  426.     99, 13, 15, 17, 19, 21, 23, 0

  427. };