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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
  25.  * mpeg4 tables.
  26.  */
  27.  
  28. #ifndef AVCODEC_MPEG4DATA_H
  29. #define AVCODEC_MPEG4DATA_H
  30.  
  31. #include <stdint.h>
  32. #include "mpegvideo.h"
  33.  
  34. /* dc encoding for mpeg4 */
  35. const uint8_t ff_mpeg4_DCtab_lum[13][2] =
  36. {
  37.     {3,3}, {3,2}, {2,2}, {2,3}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7},
  38.     {1,8}, {1,9}, {1,10}, {1,11},
  39. };
  40.  
  41. const uint8_t ff_mpeg4_DCtab_chrom[13][2] =
  42. {
  43.     {3,2}, {2,2}, {1,2}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7}, {1,8},
  44.     {1,9}, {1,10}, {1,11}, {1,12},
  45. };
  46.  
  47. const uint16_t ff_mpeg4_intra_vlc[103][2] = {
  48. { 0x2, 2 },
  49. { 0x6, 3 },{ 0xf, 4 },{ 0xd, 5 },{ 0xc, 5 },
  50. { 0x15, 6 },{ 0x13, 6 },{ 0x12, 6 },{ 0x17, 7 },
  51. { 0x1f, 8 },{ 0x1e, 8 },{ 0x1d, 8 },{ 0x25, 9 },
  52. { 0x24, 9 },{ 0x23, 9 },{ 0x21, 9 },{ 0x21, 10 },
  53. { 0x20, 10 },{ 0xf, 10 },{ 0xe, 10 },{ 0x7, 11 },
  54. { 0x6, 11 },{ 0x20, 11 },{ 0x21, 11 },{ 0x50, 12 },
  55. { 0x51, 12 },{ 0x52, 12 },{ 0xe, 4 },{ 0x14, 6 },
  56. { 0x16, 7 },{ 0x1c, 8 },{ 0x20, 9 },{ 0x1f, 9 },
  57. { 0xd, 10 },{ 0x22, 11 },{ 0x53, 12 },{ 0x55, 12 },
  58. { 0xb, 5 },{ 0x15, 7 },{ 0x1e, 9 },{ 0xc, 10 },
  59. { 0x56, 12 },{ 0x11, 6 },{ 0x1b, 8 },{ 0x1d, 9 },
  60. { 0xb, 10 },{ 0x10, 6 },{ 0x22, 9 },{ 0xa, 10 },
  61. { 0xd, 6 },{ 0x1c, 9 },{ 0x8, 10 },{ 0x12, 7 },
  62. { 0x1b, 9 },{ 0x54, 12 },{ 0x14, 7 },{ 0x1a, 9 },
  63. { 0x57, 12 },{ 0x19, 8 },{ 0x9, 10 },{ 0x18, 8 },
  64. { 0x23, 11 },{ 0x17, 8 },{ 0x19, 9 },{ 0x18, 9 },
  65. { 0x7, 10 },{ 0x58, 12 },{ 0x7, 4 },{ 0xc, 6 },
  66. { 0x16, 8 },{ 0x17, 9 },{ 0x6, 10 },{ 0x5, 11 },
  67. { 0x4, 11 },{ 0x59, 12 },{ 0xf, 6 },{ 0x16, 9 },
  68. { 0x5, 10 },{ 0xe, 6 },{ 0x4, 10 },{ 0x11, 7 },
  69. { 0x24, 11 },{ 0x10, 7 },{ 0x25, 11 },{ 0x13, 7 },
  70. { 0x5a, 12 },{ 0x15, 8 },{ 0x5b, 12 },{ 0x14, 8 },
  71. { 0x13, 8 },{ 0x1a, 8 },{ 0x15, 9 },{ 0x14, 9 },
  72. { 0x13, 9 },{ 0x12, 9 },{ 0x11, 9 },{ 0x26, 11 },
  73. { 0x27, 11 },{ 0x5c, 12 },{ 0x5d, 12 },{ 0x5e, 12 },
  74. { 0x5f, 12 },{ 0x3, 7 },
  75. };
  76.  
  77. const int8_t ff_mpeg4_intra_level[102] = {
  78.   1,  2,  3,  4,  5,  6,  7,  8,
  79.   9, 10, 11, 12, 13, 14, 15, 16,
  80.  17, 18, 19, 20, 21, 22, 23, 24,
  81.  25, 26, 27,  1,  2,  3,  4,  5,
  82.   6,  7,  8,  9, 10,  1,  2,  3,
  83.   4,  5,  1,  2,  3,  4,  1,  2,
  84.   3,  1,  2,  3,  1,  2,  3,  1,
  85.   2,  3,  1,  2,  1,  2,  1,  1,
  86.   1,  1,  1,  1,  2,  3,  4,  5,
  87.   6,  7,  8,  1,  2,  3,  1,  2,
  88.   1,  2,  1,  2,  1,  2,  1,  2,
  89.   1,  1,  1,  1,  1,  1,  1,  1,
  90.   1,  1,  1,  1,  1,  1,
  91. };
  92.  
  93. const int8_t ff_mpeg4_intra_run[102] = {
  94.   0,  0,  0,  0,  0,  0,  0,  0,
  95.   0,  0,  0,  0,  0,  0,  0,  0,
  96.   0,  0,  0,  0,  0,  0,  0,  0,
  97.   0,  0,  0,  1,  1,  1,  1,  1,
  98.   1,  1,  1,  1,  1,  2,  2,  2,
  99.   2,  2,  3,  3,  3,  3,  4,  4,
  100.   4,  5,  5,  5,  6,  6,  6,  7,
  101.   7,  7,  8,  8,  9,  9, 10, 11,
  102.  12, 13, 14,  0,  0,  0,  0,  0,
  103.   0,  0,  0,  1,  1,  1,  2,  2,
  104.   3,  3,  4,  4,  5,  5,  6,  6,
  105.   7,  8,  9, 10, 11, 12, 13, 14,
  106.  15, 16, 17, 18, 19, 20,
  107. };
  108.  
  109. RLTable ff_mpeg4_rl_intra = {
  110.     102,
  111.     67,
  112.     ff_mpeg4_intra_vlc,
  113.     ff_mpeg4_intra_run,
  114.     ff_mpeg4_intra_level,
  115. };
  116.  
  117. /* Note this is identical to the intra rvlc except that it is reordered. */
  118. static const uint16_t inter_rvlc[170][2]={
  119. {0x0006,  3},{0x0001,  4},{0x0004,  5},{0x001C,  7},
  120. {0x003C,  8},{0x003D,  8},{0x007C,  9},{0x00FC, 10},
  121. {0x00FD, 10},{0x01FC, 11},{0x01FD, 11},{0x03FC, 12},
  122. {0x07FC, 13},{0x07FD, 13},{0x0BFC, 13},{0x0BFD, 13},
  123. {0x0FFC, 14},{0x0FFD, 14},{0x1FFC, 15},{0x0007,  3},
  124. {0x000C,  6},{0x005C,  8},{0x007D,  9},{0x017C, 10},
  125. {0x02FC, 11},{0x03FD, 12},{0x0DFC, 13},{0x17FC, 14},
  126. {0x17FD, 14},{0x000A,  4},{0x001D,  7},{0x00BC,  9},
  127. {0x02FD, 11},{0x05FC, 12},{0x1BFC, 14},{0x1BFD, 14},
  128. {0x0005,  5},{0x005D,  8},{0x017D, 10},{0x05FD, 12},
  129. {0x0DFD, 13},{0x1DFC, 14},{0x1FFD, 15},{0x0008,  5},
  130. {0x006C,  8},{0x037C, 11},{0x0EFC, 13},{0x2FFC, 15},
  131. {0x0009,  5},{0x00BD,  9},{0x037D, 11},{0x0EFD, 13},
  132. {0x000D,  6},{0x01BC, 10},{0x06FC, 12},{0x1DFD, 14},
  133. {0x0014,  6},{0x01BD, 10},{0x06FD, 12},{0x2FFD, 15},
  134. {0x0015,  6},{0x01DC, 10},{0x0F7C, 13},{0x002C,  7},
  135. {0x01DD, 10},{0x1EFC, 14},{0x002D,  7},{0x03BC, 11},
  136. {0x0034,  7},{0x077C, 12},{0x006D,  8},{0x0F7D, 13},
  137. {0x0074,  8},{0x1EFD, 14},{0x0075,  8},{0x1F7C, 14},
  138. {0x00DC,  9},{0x1F7D, 14},{0x00DD,  9},{0x1FBC, 14},
  139. {0x00EC,  9},{0x37FC, 15},{0x01EC, 10},{0x01ED, 10},
  140. {0x01F4, 10},{0x03BD, 11},{0x03DC, 11},{0x03DD, 11},
  141. {0x03EC, 11},{0x03ED, 11},{0x03F4, 11},{0x077D, 12},
  142. {0x07BC, 12},{0x07BD, 12},{0x0FBC, 13},{0x0FBD, 13},
  143. {0x0FDC, 13},{0x0FDD, 13},{0x1FBD, 14},{0x1FDC, 14},
  144. {0x1FDD, 14},{0x37FD, 15},{0x3BFC, 15},
  145. {0x000B,  4},{0x0078,  8},{0x03F5, 11},{0x0FEC, 13},
  146. {0x1FEC, 14},{0x0012,  5},{0x00ED,  9},{0x07DC, 12},
  147. {0x1FED, 14},{0x3BFD, 15},{0x0013,  5},{0x03F8, 11},
  148. {0x3DFC, 15},{0x0018,  6},{0x07DD, 12},{0x0019,  6},
  149. {0x07EC, 12},{0x0022,  6},{0x0FED, 13},{0x0023,  6},
  150. {0x0FF4, 13},{0x0035,  7},{0x0FF5, 13},{0x0038,  7},
  151. {0x0FF8, 13},{0x0039,  7},{0x0FF9, 13},{0x0042,  7},
  152. {0x1FF4, 14},{0x0043,  7},{0x1FF5, 14},{0x0079,  8},
  153. {0x1FF8, 14},{0x0082,  8},{0x3DFD, 15},{0x0083,  8},
  154. {0x00F4,  9},{0x00F5,  9},{0x00F8,  9},{0x00F9,  9},
  155. {0x0102,  9},{0x0103,  9},{0x01F5, 10},{0x01F8, 10},
  156. {0x01F9, 10},{0x0202, 10},{0x0203, 10},{0x03F9, 11},
  157. {0x0402, 11},{0x0403, 11},{0x07ED, 12},{0x07F4, 12},
  158. {0x07F5, 12},{0x07F8, 12},{0x07F9, 12},{0x0802, 12},
  159. {0x0803, 12},{0x1002, 13},{0x1003, 13},{0x1FF9, 14},
  160. {0x2002, 14},{0x2003, 14},{0x3EFC, 15},{0x3EFD, 15},
  161. {0x3F7C, 15},{0x3F7D, 15},{0x0000, 4}
  162. };
  163.  
  164. static const int8_t inter_rvlc_run[169]={
  165.  0,  0,  0,  0,  0,  0,  0,  0,
  166.  0,  0,  0,  0,  0,  0,  0,  0,
  167.  0,  0,  0,  1,  1,  1,  1,  1,
  168.  1,  1,  1,  1,  1,  2,  2,  2,
  169.  2,  2,  2,  2,  3,  3,  3,  3,
  170.  3,  3,  3,  4,  4,  4,  4,  4,
  171.  5,  5,  5,  5,  6,  6,  6,  6,
  172.  7,  7,  7,  7,  8,  8,  8,  9,
  173.  9,  9, 10, 10, 11, 11, 12, 12,
  174. 13, 13, 14, 14, 15, 15, 16, 16,
  175. 17, 17, 18, 19, 20, 21, 22, 23,
  176. 24, 25, 26, 27, 28, 29, 30, 31,
  177. 32, 33, 34, 35, 36, 37, 38,
  178.  0,  0,  0,  0,  0,  1,  1,  1,
  179.  1,  1,  2,  2,  2,  3,  3,  4,
  180.  4,  5,  5,  6,  6,  7,  7,  8,
  181.  8,  9,  9, 10, 10, 11, 11, 12,
  182. 12, 13, 13, 14, 15, 16, 17, 18,
  183. 19, 20, 21, 22, 23, 24, 25, 26,
  184. 27, 28, 29, 30, 31, 32, 33, 34,
  185. 35, 36, 37, 38, 39, 40, 41, 42,
  186. 43, 44,
  187. };
  188.  
  189. static const int8_t inter_rvlc_level[169]={
  190.  1,  2,  3,  4,  5,  6,  7,  8,
  191.  9, 10, 11, 12, 13, 14, 15, 16,
  192. 17, 18, 19,  1,  2,  3,  4,  5,
  193.  6,  7,  8,  9, 10,  1,  2,  3,
  194.  4,  5,  6,  7,  1,  2,  3,  4,
  195.  5,  6,  7,  1,  2,  3,  4,  5,
  196.  1,  2,  3,  4,  1,  2,  3,  4,
  197.  1,  2,  3,  4,  1,  2,  3,  1,
  198.  2,  3,  1,  2,  1,  2,  1,  2,
  199.  1,  2,  1,  2,  1,  2,  1,  2,
  200.  1,  2,  1,  1,  1,  1,  1,  1,
  201.  1,  1,  1,  1,  1,  1,  1,  1,
  202.  1,  1,  1,  1,  1,  1,  1,
  203.  1,  2,  3,  4,  5,  1,  2,  3,
  204.  4,  5,  1,  2,  3,  1,  2,  1,
  205.  2,  1,  2,  1,  2,  1,  2,  1,
  206.  2,  1,  2,  1,  2,  1,  2,  1,
  207.  2,  1,  2,  1,  1,  1,  1,  1,
  208.  1,  1,  1,  1,  1,  1,  1,  1,
  209.  1,  1,  1,  1,  1,  1,  1,  1,
  210.  1,  1,  1,  1,  1,  1,  1,  1,
  211.  1,  1,
  212. };
  213.  
  214. RLTable ff_rvlc_rl_inter = {
  215.     169,
  216.     103,
  217.     inter_rvlc,
  218.     inter_rvlc_run,
  219.     inter_rvlc_level,
  220. };
  221.  
  222. static const uint16_t intra_rvlc[170][2]={
  223. {0x0006,  3},{0x0007,  3},{0x000A,  4},{0x0009,  5},
  224. {0x0014,  6},{0x0015,  6},{0x0034,  7},{0x0074,  8},
  225. {0x0075,  8},{0x00DD,  9},{0x00EC,  9},{0x01EC, 10},
  226. {0x01ED, 10},{0x01F4, 10},{0x03EC, 11},{0x03ED, 11},
  227. {0x03F4, 11},{0x077D, 12},{0x07BC, 12},{0x0FBD, 13},
  228. {0x0FDC, 13},{0x07BD, 12},{0x0FDD, 13},{0x1FBD, 14},
  229. {0x1FDC, 14},{0x1FDD, 14},{0x1FFC, 15},{0x0001,  4},
  230. {0x0008,  5},{0x002D,  7},{0x006C,  8},{0x006D,  8},
  231. {0x00DC,  9},{0x01DD, 10},{0x03DC, 11},{0x03DD, 11},
  232. {0x077C, 12},{0x0FBC, 13},{0x1F7D, 14},{0x1FBC, 14},
  233. {0x0004,  5},{0x002C,  7},{0x00BC,  9},{0x01DC, 10},
  234. {0x03BC, 11},{0x03BD, 11},{0x0EFD, 13},{0x0F7C, 13},
  235. {0x0F7D, 13},{0x1EFD, 14},{0x1F7C, 14},{0x0005,  5},
  236. {0x005C,  8},{0x00BD,  9},{0x037D, 11},{0x06FC, 12},
  237. {0x0EFC, 13},{0x1DFD, 14},{0x1EFC, 14},{0x1FFD, 15},
  238. {0x000C,  6},{0x005D,  8},{0x01BD, 10},{0x03FD, 12},
  239. {0x06FD, 12},{0x1BFD, 14},{0x000D,  6},{0x007D,  9},
  240. {0x02FC, 11},{0x05FC, 12},{0x1BFC, 14},{0x1DFC, 14},
  241. {0x001C,  7},{0x017C, 10},{0x02FD, 11},{0x05FD, 12},
  242. {0x2FFC, 15},{0x001D,  7},{0x017D, 10},{0x037C, 11},
  243. {0x0DFD, 13},{0x2FFD, 15},{0x003C,  8},{0x01BC, 10},
  244. {0x0BFD, 13},{0x17FD, 14},{0x003D,  8},{0x01FD, 11},
  245. {0x0DFC, 13},{0x37FC, 15},{0x007C,  9},{0x03FC, 12},
  246. {0x00FC, 10},{0x0BFC, 13},{0x00FD, 10},{0x37FD, 15},
  247. {0x01FC, 11},{0x07FC, 13},{0x07FD, 13},{0x0FFC, 14},
  248. {0x0FFD, 14},{0x17FC, 14},{0x3BFC, 15},
  249. {0x000B,  4},{0x0078,  8},{0x03F5, 11},{0x0FEC, 13},
  250. {0x1FEC, 14},{0x0012,  5},{0x00ED,  9},{0x07DC, 12},
  251. {0x1FED, 14},{0x3BFD, 15},{0x0013,  5},{0x03F8, 11},
  252. {0x3DFC, 15},{0x0018,  6},{0x07DD, 12},{0x0019,  6},
  253. {0x07EC, 12},{0x0022,  6},{0x0FED, 13},{0x0023,  6},
  254. {0x0FF4, 13},{0x0035,  7},{0x0FF5, 13},{0x0038,  7},
  255. {0x0FF8, 13},{0x0039,  7},{0x0FF9, 13},{0x0042,  7},
  256. {0x1FF4, 14},{0x0043,  7},{0x1FF5, 14},{0x0079,  8},
  257. {0x1FF8, 14},{0x0082,  8},{0x3DFD, 15},{0x0083,  8},
  258. {0x00F4,  9},{0x00F5,  9},{0x00F8,  9},{0x00F9,  9},
  259. {0x0102,  9},{0x0103,  9},{0x01F5, 10},{0x01F8, 10},
  260. {0x01F9, 10},{0x0202, 10},{0x0203, 10},{0x03F9, 11},
  261. {0x0402, 11},{0x0403, 11},{0x07ED, 12},{0x07F4, 12},
  262. {0x07F5, 12},{0x07F8, 12},{0x07F9, 12},{0x0802, 12},
  263. {0x0803, 12},{0x1002, 13},{0x1003, 13},{0x1FF9, 14},
  264. {0x2002, 14},{0x2003, 14},{0x3EFC, 15},{0x3EFD, 15},
  265. {0x3F7C, 15},{0x3F7D, 15},{0x0000,  4}
  266. };
  267.  
  268. static const int8_t intra_rvlc_run[169]={
  269.  0,  0,  0,  0,  0,  0,  0,  0,
  270.  0,  0,  0,  0,  0,  0,  0,  0,
  271.  0,  0,  0,  0,  0,  0,  0,  0,
  272.  0,  0,  0,  1,  1,  1,  1,  1,
  273.  1,  1,  1,  1,  1,  1,  1,  1,
  274.  2,  2,  2,  2,  2,  2,  2,  2,
  275.  2,  2,  2,  3,  3,  3,  3,  3,
  276.  3,  3,  3,  3,  4,  4,  4,  4,
  277.  4,  4,  5,  5,  5,  5,  5,  5,
  278.  6,  6,  6,  6,  6,  7,  7,  7,
  279.  7,  7,  8,  8,  8,  8,  9,  9,
  280.  9,  9, 10, 10, 11, 11, 12, 12,
  281. 13, 14, 15, 16, 17, 18, 19,
  282.  0,  0,  0,  0,  0,  1,  1,  1,
  283.  1,  1,  2,  2,  2,  3,  3,  4,
  284.  4,  5,  5,  6,  6,  7,  7,  8,
  285.  8,  9,  9, 10, 10, 11, 11, 12,
  286. 12, 13, 13, 14, 15, 16, 17, 18,
  287. 19, 20, 21, 22, 23, 24, 25, 26,
  288. 27, 28, 29, 30, 31, 32, 33, 34,
  289. 35, 36, 37, 38, 39, 40, 41, 42,
  290. 43, 44,
  291. };
  292.  
  293. static const int8_t intra_rvlc_level[169]={
  294.  1,  2,  3,  4,  5,  6,  7,  8,
  295.  9, 10, 11, 12, 13, 14, 15, 16,
  296. 17, 18, 19, 20, 21, 22, 23, 24,
  297. 25, 26, 27,  1,  2,  3,  4,  5,
  298.  6,  7,  8,  9, 10, 11, 12, 13,
  299.  1,  2,  3,  4,  5,  6,  7,  8,
  300.  9, 10, 11,  1,  2,  3,  4,  5,
  301.  6,  7,  8,  9,  1,  2,  3,  4,
  302.  5,  6,  1,  2,  3,  4,  5,  6,
  303.  1,  2,  3,  4,  5,  1,  2,  3,
  304.  4,  5,  1,  2,  3,  4,  1,  2,
  305.  3,  4,  1,  2,  1,  2,  1,  2,
  306.  1,  1,  1,  1,  1,  1,  1,
  307.  1,  2,  3,  4,  5,  1,  2,  3,
  308.  4,  5,  1,  2,  3,  1,  2,  1,
  309.  2,  1,  2,  1,  2,  1,  2,  1,
  310.  2,  1,  2,  1,  2,  1,  2,  1,
  311.  2,  1,  2,  1,  1,  1,  1,  1,
  312.  1,  1,  1,  1,  1,  1,  1,  1,
  313.  1,  1,  1,  1,  1,  1,  1,  1,
  314.  1,  1,  1,  1,  1,  1,  1,  1,
  315.  1,  1,
  316. };
  317.  
  318. RLTable ff_rvlc_rl_intra = {
  319.     169,
  320.     103,
  321.     intra_rvlc,
  322.     intra_rvlc_run,
  323.     intra_rvlc_level,
  324. };
  325.  
  326. const uint16_t ff_sprite_trajectory_tab[15][2] = {
  327.  {0x00, 2}, {0x02, 3},  {0x03, 3},  {0x04, 3}, {0x05, 3}, {0x06, 3},
  328.  {0x0E, 4}, {0x1E, 5},  {0x3E, 6},  {0x7E, 7}, {0xFE, 8},
  329.  {0x1FE, 9},{0x3FE, 10},{0x7FE, 11},{0xFFE, 12},
  330. };
  331.  
  332. const uint8_t ff_mb_type_b_tab[4][2] = {
  333.  {1, 1}, {1, 2}, {1, 3}, {1, 4},
  334. };
  335.  
  336. /* these matrixes will be permuted for the idct */
  337. const int16_t ff_mpeg4_default_intra_matrix[64] = {
  338.   8, 17, 18, 19, 21, 23, 25, 27,
  339.  17, 18, 19, 21, 23, 25, 27, 28,
  340.  20, 21, 22, 23, 24, 26, 28, 30,
  341.  21, 22, 23, 24, 26, 28, 30, 32,
  342.  22, 23, 24, 26, 28, 30, 32, 35,
  343.  23, 24, 26, 28, 30, 32, 35, 38,
  344.  25, 26, 28, 30, 32, 35, 38, 41,
  345.  27, 28, 30, 32, 35, 38, 41, 45,
  346. };
  347.  
  348. const int16_t ff_mpeg4_default_non_intra_matrix[64] = {
  349.  16, 17, 18, 19, 20, 21, 22, 23,
  350.  17, 18, 19, 20, 21, 22, 23, 24,
  351.  18, 19, 20, 21, 22, 23, 24, 25,
  352.  19, 20, 21, 22, 23, 24, 26, 27,
  353.  20, 21, 22, 23, 25, 26, 27, 28,
  354.  21, 22, 23, 24, 26, 27, 28, 30,
  355.  22, 23, 24, 26, 27, 28, 30, 31,
  356.  23, 24, 25, 27, 28, 30, 31, 33,
  357. };
  358.  
  359. const uint8_t ff_mpeg4_y_dc_scale_table[32]={
  360. //  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
  361.     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
  362. };
  363. const uint8_t ff_mpeg4_c_dc_scale_table[32]={
  364. //  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
  365.     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
  366. };
  367.  
  368. const uint16_t ff_mpeg4_resync_prefix[8]={
  369.     0x7F00, 0x7E00, 0x7C00, 0x7800, 0x7000, 0x6000, 0x4000, 0x0000
  370. };
  371.  
  372. const uint8_t ff_mpeg4_dc_threshold[8]={
  373.     99, 13, 15, 17, 19, 21, 23, 0
  374. };
  375.  
  376. #endif /* AVCODEC_MPEG4DATA_H */
  377.