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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 library is free software; you can redistribute it and/or

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

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

  8.  * version 2 of the License, or (at your option) any later version.

  9.  *

  10.  * This library is distributed in the hope that it will be useful,

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

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

  13.  * Lesser General Public License for more details.

  14.  *

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

  16.  * License along with this library; if not, write to the Free Software

  17.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  18.  *

  19.  */

  20. 

  21. /**

  22.  * @file h264data.h

  23.  * @brief 

  24.  *     H264 / AVC / MPEG4 part10 codec data table

  25.  * @author Michael Niedermayer <michaelni@gmx.at>

  26.  */

  27. 

  28. #define VERT_PRED             0

  29. #define HOR_PRED              1

  30. #define DC_PRED               2

  31. #define DIAG_DOWN_LEFT_PRED   3

  32. #define DIAG_DOWN_RIGHT_PRED  4

  33. #define VERT_RIGHT_PRED       5

  34. #define HOR_DOWN_PRED         6

  35. #define VERT_LEFT_PRED        7

  36. #define HOR_UP_PRED           8

  37. 

  38. #define LEFT_DC_PRED          9

  39. #define TOP_DC_PRED           10

  40. #define DC_128_PRED           11

  41. 

  42. 

  43. #define DC_PRED8x8            0

  44. #define HOR_PRED8x8           1

  45. #define VERT_PRED8x8          2

  46. #define PLANE_PRED8x8         3

  47. 

  48. #define LEFT_DC_PRED8x8       4

  49. #define TOP_DC_PRED8x8        5

  50. #define DC_128_PRED8x8        6

  51. 

  52. #define EXTENDED_SAR          255

  53. 

  54. static const AVRational pixel_aspect[14]={

  55.  {0, 1},

  56.  {1, 1},

  57.  {12, 11},

  58.  {10, 11},

  59.  {16, 11},

  60.  {40, 33},

  61.  {24, 11},

  62.  {20, 11},

  63.  {32, 11},

  64.  {80, 33},

  65.  {18, 11},

  66.  {15, 11},

  67.  {64, 33},

  68.  {160,99},

  69. };

  70. 

  71. static const uint8_t golomb_to_pict_type[5]=

  72. {P_TYPE, B_TYPE, I_TYPE, SP_TYPE, SI_TYPE};

  73. 

  74. static const uint8_t pict_type_to_golomb[7]=

  75. {-1, 2, 0, 1, -1, 4, 3};

  76. 

  77. static const uint8_t chroma_qp[52]={

  78.     0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,

  79.    12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,

  80.    28,29,29,30,31,32,32,33,34,34,35,35,36,36,37,37,

  81.    37,38,38,38,39,39,39,39

  82. 

  83. };

  84. 

  85. static const uint8_t golomb_to_intra4x4_cbp[48]={

  86.  47, 31, 15,  0, 23, 27, 29, 30,  7, 11, 13, 14, 39, 43, 45, 46,

  87.  16,  3,  5, 10, 12, 19, 21, 26, 28, 35, 37, 42, 44,  1,  2,  4,

  88.   8, 17, 18, 20, 24,  6,  9, 22, 25, 32, 33, 34, 36, 40, 38, 41

  89. };

  90.  

  91. static const uint8_t golomb_to_inter_cbp[48]={

  92.   0, 16,  1,  2,  4,  8, 32,  3,  5, 10, 12, 15, 47,  7, 11, 13,

  93.  14,  6,  9, 31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46,

  94.  17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41

  95. };

  96. 

  97. static const uint8_t intra4x4_cbp_to_golomb[48]={

  98.   3, 29, 30, 17, 31, 18, 37,  8, 32, 38, 19,  9, 20, 10, 11,  2,

  99.  16, 33, 34, 21, 35, 22, 39,  4, 36, 40, 23,  5, 24,  6,  7,  1,

  100.  41, 42, 43, 25, 44, 26, 46, 12, 45, 47, 27, 13, 28, 14, 15,  0

  101. };

  102.  

  103. static const uint8_t inter_cbp_to_golomb[48]={

  104.   0,  2,  3,  7,  4,  8, 17, 13,  5, 18,  9, 14, 10, 15, 16, 11,

  105.   1, 32, 33, 36, 34, 37, 44, 40, 35, 45, 38, 41, 39, 42, 43, 19,

  106.   6, 24, 25, 20, 26, 21, 46, 28, 27, 47, 22, 29, 23, 30, 31, 12

  107. };

  108. 

  109. static const uint8_t chroma_dc_coeff_token_len[4*5]={

  110.  2, 0, 0, 0,

  111.  6, 1, 0, 0,

  112.  6, 6, 3, 0,

  113.  6, 7, 7, 6,

  114.  6, 8, 8, 7,

  115. };

  116. 

  117. static const uint8_t chroma_dc_coeff_token_bits[4*5]={

  118.  1, 0, 0, 0,

  119.  7, 1, 0, 0,

  120.  4, 6, 1, 0,

  121.  3, 3, 2, 5,

  122.  2, 3, 2, 0,

  123. };

  124. 

  125. static const uint8_t coeff_token_len[4][4*17]={

  126. {

  127.      1, 0, 0, 0,

  128.      6, 2, 0, 0,     8, 6, 3, 0,     9, 8, 7, 5,    10, 9, 8, 6,

  129.     11,10, 9, 7,    13,11,10, 8,    13,13,11, 9,    13,13,13,10,

  130.     14,14,13,11,    14,14,14,13,    15,15,14,14,    15,15,15,14,

  131.     16,15,15,15,    16,16,16,15,    16,16,16,16,    16,16,16,16,

  132. },

  133. {

  134.      2, 0, 0, 0,

  135.      6, 2, 0, 0,     6, 5, 3, 0,     7, 6, 6, 4,     8, 6, 6, 4,

  136.      8, 7, 7, 5,     9, 8, 8, 6,    11, 9, 9, 6,    11,11,11, 7,

  137.     12,11,11, 9,    12,12,12,11,    12,12,12,11,    13,13,13,12,

  138.     13,13,13,13,    13,14,13,13,    14,14,14,13,    14,14,14,14,

  139. },

  140. {

  141.      4, 0, 0, 0,

  142.      6, 4, 0, 0,     6, 5, 4, 0,     6, 5, 5, 4,     7, 5, 5, 4,

  143.      7, 5, 5, 4,     7, 6, 6, 4,     7, 6, 6, 4,     8, 7, 7, 5,

  144.      8, 8, 7, 6,     9, 8, 8, 7,     9, 9, 8, 8,     9, 9, 9, 8,

  145.     10, 9, 9, 9,    10,10,10,10,    10,10,10,10,    10,10,10,10,

  146. },

  147. {

  148.      6, 0, 0, 0,

  149.      6, 6, 0, 0,     6, 6, 6, 0,     6, 6, 6, 6,     6, 6, 6, 6,

  150.      6, 6, 6, 6,     6, 6, 6, 6,     6, 6, 6, 6,     6, 6, 6, 6,

  151.      6, 6, 6, 6,     6, 6, 6, 6,     6, 6, 6, 6,     6, 6, 6, 6,

  152.      6, 6, 6, 6,     6, 6, 6, 6,     6, 6, 6, 6,     6, 6, 6, 6,

  153. }

  154. };

  155. 

  156. static const uint8_t coeff_token_bits[4][4*17]={

  157. {

  158.      1, 0, 0, 0,

  159.      5, 1, 0, 0,     7, 4, 1, 0,     7, 6, 5, 3,     7, 6, 5, 3,

  160.      7, 6, 5, 4,    15, 6, 5, 4,    11,14, 5, 4,     8,10,13, 4,

  161.     15,14, 9, 4,    11,10,13,12,    15,14, 9,12,    11,10,13, 8,

  162.     15, 1, 9,12,    11,14,13, 8,     7,10, 9,12,     4, 6, 5, 8,

  163. },

  164. {

  165.      3, 0, 0, 0,

  166.     11, 2, 0, 0,     7, 7, 3, 0,     7,10, 9, 5,     7, 6, 5, 4,

  167.      4, 6, 5, 6,     7, 6, 5, 8,    15, 6, 5, 4,    11,14,13, 4,

  168.     15,10, 9, 4,    11,14,13,12,     8,10, 9, 8,    15,14,13,12,

  169.     11,10, 9,12,     7,11, 6, 8,     9, 8,10, 1,     7, 6, 5, 4,

  170. },

  171. {

  172.     15, 0, 0, 0,

  173.     15,14, 0, 0,    11,15,13, 0,     8,12,14,12,    15,10,11,11,

  174.     11, 8, 9,10,     9,14,13, 9,     8,10, 9, 8,    15,14,13,13,

  175.     11,14,10,12,    15,10,13,12,    11,14, 9,12,     8,10,13, 8,

  176.     13, 7, 9,12,     9,12,11,10,     5, 8, 7, 6,     1, 4, 3, 2,

  177. },

  178. {

  179.      3, 0, 0, 0,

  180.      0, 1, 0, 0,     4, 5, 6, 0,     8, 9,10,11,    12,13,14,15,

  181.     16,17,18,19,    20,21,22,23,    24,25,26,27,    28,29,30,31,

  182.     32,33,34,35,    36,37,38,39,    40,41,42,43,    44,45,46,47,

  183.     48,49,50,51,    52,53,54,55,    56,57,58,59,    60,61,62,63,

  184. }

  185. };

  186. 

  187. static const uint8_t total_zeros_len[16][16]= {

  188.     {1,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9},  

  189.     {3,3,3,3,3,4,4,4,4,5,5,6,6,6,6},  

  190.     {4,3,3,3,4,4,3,3,4,5,5,6,5,6},  

  191.     {5,3,4,4,3,3,3,4,3,4,5,5,5},  

  192.     {4,4,4,3,3,3,3,3,4,5,4,5},  

  193.     {6,5,3,3,3,3,3,3,4,3,6},  

  194.     {6,5,3,3,3,2,3,4,3,6},  

  195.     {6,4,5,3,2,2,3,3,6},  

  196.     {6,6,4,2,2,3,2,5},  

  197.     {5,5,3,2,2,2,4},  

  198.     {4,4,3,3,1,3},  

  199.     {4,4,2,1,3},  

  200.     {3,3,1,2},  

  201.     {2,2,1},  

  202.     {1,1},  

  203. };

  204. 

  205. static const uint8_t total_zeros_bits[16][16]= {

  206.     {1,3,2,3,2,3,2,3,2,3,2,3,2,3,2,1},

  207.     {7,6,5,4,3,5,4,3,2,3,2,3,2,1,0},

  208.     {5,7,6,5,4,3,4,3,2,3,2,1,1,0},

  209.     {3,7,5,4,6,5,4,3,3,2,2,1,0},

  210.     {5,4,3,7,6,5,4,3,2,1,1,0},

  211.     {1,1,7,6,5,4,3,2,1,1,0},

  212.     {1,1,5,4,3,3,2,1,1,0},

  213.     {1,1,1,3,3,2,2,1,0},

  214.     {1,0,1,3,2,1,1,1},

  215.     {1,0,1,3,2,1,1},

  216.     {0,1,1,2,1,3},

  217.     {0,1,1,1,1},

  218.     {0,1,1,1},

  219.     {0,1,1},

  220.     {0,1},

  221. };

  222. 

  223. static const uint8_t chroma_dc_total_zeros_len[3][4]= {

  224.     { 1, 2, 3, 3,},

  225.     { 1, 2, 2, 0,},

  226.     { 1, 1, 0, 0,}, 

  227. };

  228. 

  229. static const uint8_t chroma_dc_total_zeros_bits[3][4]= {

  230.     { 1, 1, 1, 0,},

  231.     { 1, 1, 0, 0,},

  232.     { 1, 0, 0, 0,},

  233. };

  234. 

  235. static const uint8_t run_len[7][16]={

  236.     {1,1},

  237.     {1,2,2},

  238.     {2,2,2,2},

  239.     {2,2,2,3,3},

  240.     {2,2,3,3,3,3},

  241.     {2,3,3,3,3,3,3},

  242.     {3,3,3,3,3,3,3,4,5,6,7,8,9,10,11},

  243. };

  244. 

  245. static const uint8_t run_bits[7][16]={

  246.     {1,0},

  247.     {1,1,0},

  248.     {3,2,1,0},

  249.     {3,2,1,1,0},

  250.     {3,2,3,2,1,0},

  251.     {3,0,1,3,2,5,4},

  252.     {7,6,5,4,3,2,1,1,1,1,1,1,1,1,1},

  253. };

  254. 

  255. /*

  256. o-o o-o

  257.  / / /

  258. o-o o-o

  259.  ,---'

  260. o-o o-o

  261.  / / /

  262. o-o o-o

  263. */

  264. 

  265. static const uint8_t scan8[16 + 2*4]={

  266.  4+1*8, 5+1*8, 4+2*8, 5+2*8,

  267.  6+1*8, 7+1*8, 6+2*8, 7+2*8,

  268.  4+3*8, 5+3*8, 4+4*8, 5+4*8,

  269.  6+3*8, 7+3*8, 6+4*8, 7+4*8,

  270.  1+1*8, 2+1*8,

  271.  1+2*8, 2+2*8,

  272.  1+4*8, 2+4*8,

  273.  1+5*8, 2+5*8,

  274. };

  275. 

  276. static const uint8_t zigzag_scan[16]={

  277.  0+0*4, 1+0*4, 0+1*4, 0+2*4, 

  278.  1+1*4, 2+0*4, 3+0*4, 2+1*4, 

  279.  1+2*4, 0+3*4, 1+3*4, 2+2*4, 

  280.  3+1*4, 3+2*4, 2+3*4, 3+3*4, 

  281. };

  282. 

  283. static const uint8_t field_scan[16]={

  284.  0+0*4, 0+1*4, 1+0*4, 0+2*4, 

  285.  0+3*4, 1+1*4, 1+2*4, 1+3*4,

  286.  2+0*4, 2+1*4, 2+2*4, 2+3*4, 

  287.  3+0*4, 3+1*4, 3+2*4, 3+3*4,

  288. };

  289. 

  290. static const uint8_t luma_dc_zigzag_scan[16]={

  291.  0*16 + 0*64, 1*16 + 0*64, 2*16 + 0*64, 0*16 + 2*64,

  292.  3*16 + 0*64, 0*16 + 1*64, 1*16 + 1*64, 2*16 + 1*64,

  293.  1*16 + 2*64, 2*16 + 2*64, 3*16 + 2*64, 0*16 + 3*64,

  294.  3*16 + 1*64, 1*16 + 3*64, 2*16 + 3*64, 3*16 + 3*64,

  295. };

  296. 

  297. static const uint8_t luma_dc_field_scan[16]={

  298.  0*16 + 0*64, 2*16 + 0*64, 1*16 + 0*64, 0*16 + 2*64, 

  299.  2*16 + 2*64, 3*16 + 0*64, 1*16 + 2*64, 3*16 + 2*64, 

  300.  0*16 + 1*64, 2*16 + 1*64, 0*16 + 3*64, 2*16 + 3*64, 

  301.  1*16 + 1*64, 3*16 + 1*64, 1*16 + 3*64, 3*16 + 3*64,

  302. };

  303. 

  304. static const uint8_t chroma_dc_scan[4]={

  305.  (0+0*2)*16, (1+0*2)*16, 

  306.  (0+1*2)*16, (1+1*2)*16,  //FIXME

  307. };

  308. 

  309. #define MB_TYPE_REF0       MB_TYPE_ACPRED //dirty but it fits in 16bit

  310. #define IS_REF0(a)       ((a)&MB_TYPE_REF0)

  311. 

  312. typedef struct IMbInfo{

  313.     uint16_t type;

  314.     uint8_t pred_mode;

  315.     uint8_t cbp;

  316. } IMbInfo;

  317. 

  318. static const IMbInfo i_mb_type_info[26]={

  319. {MB_TYPE_INTRA4x4  , -1, -1},

  320. {MB_TYPE_INTRA16x16,  2,  0},

  321. {MB_TYPE_INTRA16x16,  1,  0},

  322. {MB_TYPE_INTRA16x16,  0,  0},

  323. {MB_TYPE_INTRA16x16,  3,  0},

  324. {MB_TYPE_INTRA16x16,  2,  16},

  325. {MB_TYPE_INTRA16x16,  1,  16},

  326. {MB_TYPE_INTRA16x16,  0,  16},

  327. {MB_TYPE_INTRA16x16,  3,  16},

  328. {MB_TYPE_INTRA16x16,  2,  32},

  329. {MB_TYPE_INTRA16x16,  1,  32},

  330. {MB_TYPE_INTRA16x16,  0,  32},

  331. {MB_TYPE_INTRA16x16,  3,  32},

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

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

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

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

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

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

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

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

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

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

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

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

  344. {MB_TYPE_INTRA_PCM , -1, -1},

  345. };

  346. 

  347. typedef struct PMbInfo{

  348.     uint16_t type;

  349.     uint8_t partition_count;

  350. } PMbInfo;

  351. 

  352. static const PMbInfo p_mb_type_info[5]={

  353. {MB_TYPE_16x16|MB_TYPE_P0L0             , 1},

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

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

  356. {MB_TYPE_8x8                            , 4},

  357. {MB_TYPE_8x8  |MB_TYPE_REF0             , 4},

  358. };

  359. 

  360. static const PMbInfo p_sub_mb_type_info[4]={

  361. {MB_TYPE_16x16|MB_TYPE_P0L0             , 1},

  362. {MB_TYPE_16x8 |MB_TYPE_P0L0             , 2},

  363. {MB_TYPE_8x16 |MB_TYPE_P0L0             , 2},

  364. {MB_TYPE_8x8  |MB_TYPE_P0L0             , 4},

  365. };

  366. 

  367. static const PMbInfo b_mb_type_info[23]={

  368. {MB_TYPE_DIRECT2                                                   , 1, },

  369. {MB_TYPE_16x16|MB_TYPE_P0L0                                       , 1, },

  370. {MB_TYPE_16x16             |MB_TYPE_P0L1                          , 1, },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  390. {MB_TYPE_8x8                                                      , 4, },

  391. };

  392. 

  393. static const PMbInfo b_sub_mb_type_info[13]={

  394. {MB_TYPE_DIRECT2                                                   , 1, },

  395. {MB_TYPE_16x16|MB_TYPE_P0L0                                       , 1, },

  396. {MB_TYPE_16x16             |MB_TYPE_P0L1                          , 1, },

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

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

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

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

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

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

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

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

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

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

  407. };

  408. 

  409. 

  410. static const uint8_t rem6[52]={

  411. 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 

  412. };

  413. 

  414. static const uint8_t div6[52]={

  415. 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8,

  416. };

  417. 

  418. static const uint16_t dequant_coeff[52][16]={

  419. {  10,  13,  10,  13,   13,  16,  13,  16,   10,  13,  10,  13,   13,  16,  13,  16, },

  420. {  11,  14,  11,  14,   14,  18,  14,  18,   11,  14,  11,  14,   14,  18,  14,  18, },

  421. {  13,  16,  13,  16,   16,  20,  16,  20,   13,  16,  13,  16,   16,  20,  16,  20, },

  422. {  14,  18,  14,  18,   18,  23,  18,  23,   14,  18,  14,  18,   18,  23,  18,  23, },

  423. {  16,  20,  16,  20,   20,  25,  20,  25,   16,  20,  16,  20,   20,  25,  20,  25, },

  424. {  18,  23,  18,  23,   23,  29,  23,  29,   18,  23,  18,  23,   23,  29,  23,  29, },

  425. {  20,  26,  20,  26,   26,  32,  26,  32,   20,  26,  20,  26,   26,  32,  26,  32, },

  426. {  22,  28,  22,  28,   28,  36,  28,  36,   22,  28,  22,  28,   28,  36,  28,  36, },

  427. {  26,  32,  26,  32,   32,  40,  32,  40,   26,  32,  26,  32,   32,  40,  32,  40, },

  428. {  28,  36,  28,  36,   36,  46,  36,  46,   28,  36,  28,  36,   36,  46,  36,  46, },

  429. {  32,  40,  32,  40,   40,  50,  40,  50,   32,  40,  32,  40,   40,  50,  40,  50, },

  430. {  36,  46,  36,  46,   46,  58,  46,  58,   36,  46,  36,  46,   46,  58,  46,  58, },

  431. {  40,  52,  40,  52,   52,  64,  52,  64,   40,  52,  40,  52,   52,  64,  52,  64, },

  432. {  44,  56,  44,  56,   56,  72,  56,  72,   44,  56,  44,  56,   56,  72,  56,  72, },

  433. {  52,  64,  52,  64,   64,  80,  64,  80,   52,  64,  52,  64,   64,  80,  64,  80, },

  434. {  56,  72,  56,  72,   72,  92,  72,  92,   56,  72,  56,  72,   72,  92,  72,  92, },

  435. {  64,  80,  64,  80,   80, 100,  80, 100,   64,  80,  64,  80,   80, 100,  80, 100, },

  436. {  72,  92,  72,  92,   92, 116,  92, 116,   72,  92,  72,  92,   92, 116,  92, 116, },

  437. {  80, 104,  80, 104,  104, 128, 104, 128,   80, 104,  80, 104,  104, 128, 104, 128, },

  438. {  88, 112,  88, 112,  112, 144, 112, 144,   88, 112,  88, 112,  112, 144, 112, 144, },

  439. { 104, 128, 104, 128,  128, 160, 128, 160,  104, 128, 104, 128,  128, 160, 128, 160, },

  440. { 112, 144, 112, 144,  144, 184, 144, 184,  112, 144, 112, 144,  144, 184, 144, 184, },

  441. { 128, 160, 128, 160,  160, 200, 160, 200,  128, 160, 128, 160,  160, 200, 160, 200, },

  442. { 144, 184, 144, 184,  184, 232, 184, 232,  144, 184, 144, 184,  184, 232, 184, 232, },

  443. { 160, 208, 160, 208,  208, 256, 208, 256,  160, 208, 160, 208,  208, 256, 208, 256, },

  444. { 176, 224, 176, 224,  224, 288, 224, 288,  176, 224, 176, 224,  224, 288, 224, 288, },

  445. { 208, 256, 208, 256,  256, 320, 256, 320,  208, 256, 208, 256,  256, 320, 256, 320, },

  446. { 224, 288, 224, 288,  288, 368, 288, 368,  224, 288, 224, 288,  288, 368, 288, 368, },

  447. { 256, 320, 256, 320,  320, 400, 320, 400,  256, 320, 256, 320,  320, 400, 320, 400, },

  448. { 288, 368, 288, 368,  368, 464, 368, 464,  288, 368, 288, 368,  368, 464, 368, 464, },

  449. { 320, 416, 320, 416,  416, 512, 416, 512,  320, 416, 320, 416,  416, 512, 416, 512, },

  450. { 352, 448, 352, 448,  448, 576, 448, 576,  352, 448, 352, 448,  448, 576, 448, 576, },

  451. { 416, 512, 416, 512,  512, 640, 512, 640,  416, 512, 416, 512,  512, 640, 512, 640, },

  452. { 448, 576, 448, 576,  576, 736, 576, 736,  448, 576, 448, 576,  576, 736, 576, 736, },

  453. { 512, 640, 512, 640,  640, 800, 640, 800,  512, 640, 512, 640,  640, 800, 640, 800, },

  454. { 576, 736, 576, 736,  736, 928, 736, 928,  576, 736, 576, 736,  736, 928, 736, 928, },

  455. { 640, 832, 640, 832,  832,1024, 832,1024,  640, 832, 640, 832,  832,1024, 832,1024, },

  456. { 704, 896, 704, 896,  896,1152, 896,1152,  704, 896, 704, 896,  896,1152, 896,1152, },

  457. { 832,1024, 832,1024, 1024,1280,1024,1280,  832,1024, 832,1024, 1024,1280,1024,1280, },

  458. { 896,1152, 896,1152, 1152,1472,1152,1472,  896,1152, 896,1152, 1152,1472,1152,1472, },

  459. {1024,1280,1024,1280, 1280,1600,1280,1600, 1024,1280,1024,1280, 1280,1600,1280,1600, },

  460. {1152,1472,1152,1472, 1472,1856,1472,1856, 1152,1472,1152,1472, 1472,1856,1472,1856, },

  461. {1280,1664,1280,1664, 1664,2048,1664,2048, 1280,1664,1280,1664, 1664,2048,1664,2048, },

  462. {1408,1792,1408,1792, 1792,2304,1792,2304, 1408,1792,1408,1792, 1792,2304,1792,2304, },

  463. {1664,2048,1664,2048, 2048,2560,2048,2560, 1664,2048,1664,2048, 2048,2560,2048,2560, },

  464. {1792,2304,1792,2304, 2304,2944,2304,2944, 1792,2304,1792,2304, 2304,2944,2304,2944, },

  465. {2048,2560,2048,2560, 2560,3200,2560,3200, 2048,2560,2048,2560, 2560,3200,2560,3200, },

  466. {2304,2944,2304,2944, 2944,3712,2944,3712, 2304,2944,2304,2944, 2944,3712,2944,3712, },

  467. {2560,3328,2560,3328, 3328,4096,3328,4096, 2560,3328,2560,3328, 3328,4096,3328,4096, },

  468. {2816,3584,2816,3584, 3584,4608,3584,4608, 2816,3584,2816,3584, 3584,4608,3584,4608, },

  469. {3328,4096,3328,4096, 4096,5120,4096,5120, 3328,4096,3328,4096, 4096,5120,4096,5120, },

  470. {3584,4608,3584,4608, 4608,5888,4608,5888, 3584,4608,3584,4608, 4608,5888,4608,5888, },

  471. //{4096,5120,4096,5120, 5120,6400,5120,6400, 4096,5120,4096,5120, 5120,6400,5120,6400, },

  472. //{4608,5888,4608,5888, 5888,7424,5888,7424, 4608,5888,4608,5888, 5888,7424,5888,7424, },

  473. };

  474. 

  475. #define QUANT_SHIFT 22

  476. 

  477. static const int quant_coeff[52][16]={

  478.     { 419430,258111,419430,258111,258111,167772,258111,167772,419430,258111,419430,258111,258111,167772,258111,167772,},

  479.     { 381300,239675,381300,239675,239675,149131,239675,149131,381300,239675,381300,239675,239675,149131,239675,149131,},

  480.     { 322639,209715,322639,209715,209715,134218,209715,134218,322639,209715,322639,209715,209715,134218,209715,134218,},

  481.     { 299593,186414,299593,186414,186414,116711,186414,116711,299593,186414,299593,186414,186414,116711,186414,116711,},

  482.     { 262144,167772,262144,167772,167772,107374,167772,107374,262144,167772,262144,167772,167772,107374,167772,107374,},

  483.     { 233017,145889,233017,145889,145889, 92564,145889, 92564,233017,145889,233017,145889,145889, 92564,145889, 92564,},

  484.     { 209715,129056,209715,129056,129056, 83886,129056, 83886,209715,129056,209715,129056,129056, 83886,129056, 83886,},

  485.     { 190650,119837,190650,119837,119837, 74565,119837, 74565,190650,119837,190650,119837,119837, 74565,119837, 74565,},

  486.     { 161319,104858,161319,104858,104858, 67109,104858, 67109,161319,104858,161319,104858,104858, 67109,104858, 67109,},

  487.     { 149797, 93207,149797, 93207, 93207, 58356, 93207, 58356,149797, 93207,149797, 93207, 93207, 58356, 93207, 58356,},

  488.     { 131072, 83886,131072, 83886, 83886, 53687, 83886, 53687,131072, 83886,131072, 83886, 83886, 53687, 83886, 53687,},

  489.     { 116508, 72944,116508, 72944, 72944, 46282, 72944, 46282,116508, 72944,116508, 72944, 72944, 46282, 72944, 46282,},

  490.     { 104858, 64528,104858, 64528, 64528, 41943, 64528, 41943,104858, 64528,104858, 64528, 64528, 41943, 64528, 41943,},

  491.     {  95325, 59919, 95325, 59919, 59919, 37283, 59919, 37283, 95325, 59919, 95325, 59919, 59919, 37283, 59919, 37283,},

  492.     {  80660, 52429, 80660, 52429, 52429, 33554, 52429, 33554, 80660, 52429, 80660, 52429, 52429, 33554, 52429, 33554,},

  493.     {  74898, 46603, 74898, 46603, 46603, 29178, 46603, 29178, 74898, 46603, 74898, 46603, 46603, 29178, 46603, 29178,},

  494.     {  65536, 41943, 65536, 41943, 41943, 26844, 41943, 26844, 65536, 41943, 65536, 41943, 41943, 26844, 41943, 26844,},

  495.     {  58254, 36472, 58254, 36472, 36472, 23141, 36472, 23141, 58254, 36472, 58254, 36472, 36472, 23141, 36472, 23141,},

  496.     {  52429, 32264, 52429, 32264, 32264, 20972, 32264, 20972, 52429, 32264, 52429, 32264, 32264, 20972, 32264, 20972,},

  497.     {  47663, 29959, 47663, 29959, 29959, 18641, 29959, 18641, 47663, 29959, 47663, 29959, 29959, 18641, 29959, 18641,},

  498.     {  40330, 26214, 40330, 26214, 26214, 16777, 26214, 16777, 40330, 26214, 40330, 26214, 26214, 16777, 26214, 16777,},

  499.     {  37449, 23302, 37449, 23302, 23302, 14589, 23302, 14589, 37449, 23302, 37449, 23302, 23302, 14589, 23302, 14589,},

  500.     {  32768, 20972, 32768, 20972, 20972, 13422, 20972, 13422, 32768, 20972, 32768, 20972, 20972, 13422, 20972, 13422,},

  501.     {  29127, 18236, 29127, 18236, 18236, 11570, 18236, 11570, 29127, 18236, 29127, 18236, 18236, 11570, 18236, 11570,},

  502.     {  26214, 16132, 26214, 16132, 16132, 10486, 16132, 10486, 26214, 16132, 26214, 16132, 16132, 10486, 16132, 10486,},

  503.     {  23831, 14980, 23831, 14980, 14980,  9321, 14980,  9321, 23831, 14980, 23831, 14980, 14980,  9321, 14980,  9321,},

  504.     {  20165, 13107, 20165, 13107, 13107,  8389, 13107,  8389, 20165, 13107, 20165, 13107, 13107,  8389, 13107,  8389,},

  505.     {  18725, 11651, 18725, 11651, 11651,  7294, 11651,  7294, 18725, 11651, 18725, 11651, 11651,  7294, 11651,  7294,},

  506.     {  16384, 10486, 16384, 10486, 10486,  6711, 10486,  6711, 16384, 10486, 16384, 10486, 10486,  6711, 10486,  6711,},

  507.     {  14564,  9118, 14564,  9118,  9118,  5785,  9118,  5785, 14564,  9118, 14564,  9118,  9118,  5785,  9118,  5785,},

  508.     {  13107,  8066, 13107,  8066,  8066,  5243,  8066,  5243, 13107,  8066, 13107,  8066,  8066,  5243,  8066,  5243,},

  509.     {  11916,  7490, 11916,  7490,  7490,  4660,  7490,  4660, 11916,  7490, 11916,  7490,  7490,  4660,  7490,  4660,},

  510.     {  10082,  6554, 10082,  6554,  6554,  4194,  6554,  4194, 10082,  6554, 10082,  6554,  6554,  4194,  6554,  4194,},

  511.     {   9362,  5825,  9362,  5825,  5825,  3647,  5825,  3647,  9362,  5825,  9362,  5825,  5825,  3647,  5825,  3647,},

  512.     {   8192,  5243,  8192,  5243,  5243,  3355,  5243,  3355,  8192,  5243,  8192,  5243,  5243,  3355,  5243,  3355,},

  513.     {   7282,  4559,  7282,  4559,  4559,  2893,  4559,  2893,  7282,  4559,  7282,  4559,  4559,  2893,  4559,  2893,},

  514.     {   6554,  4033,  6554,  4033,  4033,  2621,  4033,  2621,  6554,  4033,  6554,  4033,  4033,  2621,  4033,  2621,},

  515.     {   5958,  3745,  5958,  3745,  3745,  2330,  3745,  2330,  5958,  3745,  5958,  3745,  3745,  2330,  3745,  2330,},

  516.     {   5041,  3277,  5041,  3277,  3277,  2097,  3277,  2097,  5041,  3277,  5041,  3277,  3277,  2097,  3277,  2097,},

  517.     {   4681,  2913,  4681,  2913,  2913,  1824,  2913,  1824,  4681,  2913,  4681,  2913,  2913,  1824,  2913,  1824,},

  518.     {   4096,  2621,  4096,  2621,  2621,  1678,  2621,  1678,  4096,  2621,  4096,  2621,  2621,  1678,  2621,  1678,},

  519.     {   3641,  2280,  3641,  2280,  2280,  1446,  2280,  1446,  3641,  2280,  3641,  2280,  2280,  1446,  2280,  1446,},

  520.     {   3277,  2016,  3277,  2016,  2016,  1311,  2016,  1311,  3277,  2016,  3277,  2016,  2016,  1311,  2016,  1311,},

  521.     {   2979,  1872,  2979,  1872,  1872,  1165,  1872,  1165,  2979,  1872,  2979,  1872,  1872,  1165,  1872,  1165,},

  522.     {   2521,  1638,  2521,  1638,  1638,  1049,  1638,  1049,  2521,  1638,  2521,  1638,  1638,  1049,  1638,  1049,},

  523.     {   2341,  1456,  2341,  1456,  1456,   912,  1456,   912,  2341,  1456,  2341,  1456,  1456,   912,  1456,   912,},

  524.     {   2048,  1311,  2048,  1311,  1311,   839,  1311,   839,  2048,  1311,  2048,  1311,  1311,   839,  1311,   839,},

  525.     {   1820,  1140,  1820,  1140,  1140,   723,  1140,   723,  1820,  1140,  1820,  1140,  1140,   723,  1140,   723,},

  526.     {   1638,  1008,  1638,  1008,  1008,   655,  1008,   655,  1638,  1008,  1638,  1008,  1008,   655,  1008,   655,},

  527.     {   1489,   936,  1489,   936,   936,   583,   936,   583,  1489,   936,  1489,   936,   936,   583,   936,   583,},

  528.     {   1260,   819,  1260,   819,   819,   524,   819,   524,  1260,   819,  1260,   819,   819,   524,   819,   524,},

  529.     {   1170,   728,  1170,   728,   728,   456,   728,   456,  1170,   728,  1170,   728,   728,   456,   728,   456,},

  530. };