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FFmpeg/libavcodec/mpeg12data.h

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  1. /**

  2.  * @file mpeg12data.h

  3.  * MPEG1/2 tables.

  4.  */

  5. 

  6. const int16_t ff_mpeg1_default_intra_matrix[64] = {

  7. 	8, 16, 19, 22, 26, 27, 29, 34,

  8. 	16, 16, 22, 24, 27, 29, 34, 37,

  9. 	19, 22, 26, 27, 29, 34, 34, 38,

  10. 	22, 22, 26, 27, 29, 34, 37, 40,

  11. 	22, 26, 27, 29, 32, 35, 40, 48,

  12. 	26, 27, 29, 32, 35, 40, 48, 58,

  13. 	26, 27, 29, 34, 38, 46, 56, 69,

  14. 	27, 29, 35, 38, 46, 56, 69, 83

  15. };

  16. 

  17. const int16_t ff_mpeg1_default_non_intra_matrix[64] = {

  18.     16, 16, 16, 16, 16, 16, 16, 16,

  19.     16, 16, 16, 16, 16, 16, 16, 16,

  20.     16, 16, 16, 16, 16, 16, 16, 16,

  21.     16, 16, 16, 16, 16, 16, 16, 16,

  22.     16, 16, 16, 16, 16, 16, 16, 16,

  23.     16, 16, 16, 16, 16, 16, 16, 16,

  24.     16, 16, 16, 16, 16, 16, 16, 16,

  25.     16, 16, 16, 16, 16, 16, 16, 16,

  26. };

  27. 

  28. const unsigned char vlc_dc_table[256] = {

  29.     0, 1, 2, 2,

  30.     3, 3, 3, 3,

  31.     4, 4, 4, 4, 4, 4, 4, 4,

  32.     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,

  33.     6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,

  34.     6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,

  35. 

  36.     7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,

  37.     7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,

  38.     7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,

  39.     7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,

  40. 

  41.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  42.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  43.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  44.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  45.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  46.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  47.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  48.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  49. };

  50. 

  51. const uint16_t vlc_dc_lum_code[12] = {

  52.     0x4, 0x0, 0x1, 0x5, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x1ff,

  53. };

  54. const unsigned char vlc_dc_lum_bits[12] = {

  55.     3, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 9,

  56. };

  57. 

  58. const uint16_t vlc_dc_chroma_code[12] = {

  59.     0x0, 0x1, 0x2, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x3fe, 0x3ff,

  60. };

  61. const unsigned char vlc_dc_chroma_bits[12] = {

  62.     2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10,

  63. };

  64. 

  65. /* simple include everything table for dc, first byte is bits number next 3 are code*/

  66. static uint32_t mpeg1_lum_dc_uni[512];

  67. static uint32_t mpeg1_chr_dc_uni[512];

  68. 

  69. static const uint16_t mpeg1_vlc[113][2] = {

  70.  { 0x3, 2 }, { 0x4, 4 }, { 0x5, 5 }, { 0x6, 7 },

  71.  { 0x26, 8 }, { 0x21, 8 }, { 0xa, 10 }, { 0x1d, 12 },

  72.  { 0x18, 12 }, { 0x13, 12 }, { 0x10, 12 }, { 0x1a, 13 },

  73.  { 0x19, 13 }, { 0x18, 13 }, { 0x17, 13 }, { 0x1f, 14 },

  74.  { 0x1e, 14 }, { 0x1d, 14 }, { 0x1c, 14 }, { 0x1b, 14 },

  75.  { 0x1a, 14 }, { 0x19, 14 }, { 0x18, 14 }, { 0x17, 14 },

  76.  { 0x16, 14 }, { 0x15, 14 }, { 0x14, 14 }, { 0x13, 14 },

  77.  { 0x12, 14 }, { 0x11, 14 }, { 0x10, 14 }, { 0x18, 15 },

  78.  { 0x17, 15 }, { 0x16, 15 }, { 0x15, 15 }, { 0x14, 15 },

  79.  { 0x13, 15 }, { 0x12, 15 }, { 0x11, 15 }, { 0x10, 15 },

  80.  { 0x3, 3 }, { 0x6, 6 }, { 0x25, 8 }, { 0xc, 10 },

  81.  { 0x1b, 12 }, { 0x16, 13 }, { 0x15, 13 }, { 0x1f, 15 },

  82.  { 0x1e, 15 }, { 0x1d, 15 }, { 0x1c, 15 }, { 0x1b, 15 },

  83.  { 0x1a, 15 }, { 0x19, 15 }, { 0x13, 16 }, { 0x12, 16 },

  84.  { 0x11, 16 }, { 0x10, 16 }, { 0x5, 4 }, { 0x4, 7 },

  85.  { 0xb, 10 }, { 0x14, 12 }, { 0x14, 13 }, { 0x7, 5 },

  86.  { 0x24, 8 }, { 0x1c, 12 }, { 0x13, 13 }, { 0x6, 5 },

  87.  { 0xf, 10 }, { 0x12, 12 }, { 0x7, 6 }, { 0x9, 10 },

  88.  { 0x12, 13 }, { 0x5, 6 }, { 0x1e, 12 }, { 0x14, 16 },

  89.  { 0x4, 6 }, { 0x15, 12 }, { 0x7, 7 }, { 0x11, 12 },

  90.  { 0x5, 7 }, { 0x11, 13 }, { 0x27, 8 }, { 0x10, 13 },

  91.  { 0x23, 8 }, { 0x1a, 16 }, { 0x22, 8 }, { 0x19, 16 },

  92.  { 0x20, 8 }, { 0x18, 16 }, { 0xe, 10 }, { 0x17, 16 },

  93.  { 0xd, 10 }, { 0x16, 16 }, { 0x8, 10 }, { 0x15, 16 },

  94.  { 0x1f, 12 }, { 0x1a, 12 }, { 0x19, 12 }, { 0x17, 12 },

  95.  { 0x16, 12 }, { 0x1f, 13 }, { 0x1e, 13 }, { 0x1d, 13 },

  96.  { 0x1c, 13 }, { 0x1b, 13 }, { 0x1f, 16 }, { 0x1e, 16 },

  97.  { 0x1d, 16 }, { 0x1c, 16 }, { 0x1b, 16 },

  98.  { 0x1, 6 }, /* escape */

  99.  { 0x2, 2 }, /* EOB */

  100. };

  101. 

  102. static const uint16_t mpeg2_vlc[113][2] = {

  103.   {0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5},

  104.   {0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7},

  105.   {0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8},

  106.   {0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14},

  107.   {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14},

  108.   {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14},

  109.   {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14},

  110.   {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15},

  111.   {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15},

  112.   {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15},

  113.   {0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8},

  114.   {0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15},

  115.   {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15},

  116.   {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16},

  117.   {0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7}, 

  118.   {0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5}, 

  119.   {0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6}, 

  120.   {0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9}, 

  121.   {0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16}, 

  122.   {0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12}, 

  123.   {0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13}, 

  124.   {0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16}, 

  125.   {0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16}, 

  126.   {0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16}, 

  127.   {0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12}, 

  128.   {0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13}, 

  129.   {0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16}, 

  130.   {0x1d,16}, {0x1c,16}, {0x1b,16}, 

  131.   {0x01,6}, /* escape */

  132.   {0x06,4}, /* EOB */

  133. };

  134. 

  135. static const int8_t mpeg1_level[111] = {

  136.   1,  2,  3,  4,  5,  6,  7,  8,

  137.   9, 10, 11, 12, 13, 14, 15, 16,

  138.  17, 18, 19, 20, 21, 22, 23, 24,

  139.  25, 26, 27, 28, 29, 30, 31, 32,

  140.  33, 34, 35, 36, 37, 38, 39, 40,

  141.   1,  2,  3,  4,  5,  6,  7,  8,

  142.   9, 10, 11, 12, 13, 14, 15, 16,

  143.  17, 18,  1,  2,  3,  4,  5,  1,

  144.   2,  3,  4,  1,  2,  3,  1,  2,

  145.   3,  1,  2,  3,  1,  2,  1,  2,

  146.   1,  2,  1,  2,  1,  2,  1,  2,

  147.   1,  2,  1,  2,  1,  2,  1,  2,

  148.   1,  1,  1,  1,  1,  1,  1,  1,

  149.   1,  1,  1,  1,  1,  1,  1,

  150. };

  151. 

  152. static const int8_t mpeg1_run[111] = {

  153.   0,  0,  0,  0,  0,  0,  0,  0,

  154.   0,  0,  0,  0,  0,  0,  0,  0,

  155.   0,  0,  0,  0,  0,  0,  0,  0,

  156.   0,  0,  0,  0,  0,  0,  0,  0,

  157.   0,  0,  0,  0,  0,  0,  0,  0,

  158.   1,  1,  1,  1,  1,  1,  1,  1,

  159.   1,  1,  1,  1,  1,  1,  1,  1,

  160.   1,  1,  2,  2,  2,  2,  2,  3,

  161.   3,  3,  3,  4,  4,  4,  5,  5,

  162.   5,  6,  6,  6,  7,  7,  8,  8,

  163.   9,  9, 10, 10, 11, 11, 12, 12,

  164.  13, 13, 14, 14, 15, 15, 16, 16,

  165.  17, 18, 19, 20, 21, 22, 23, 24,

  166.  25, 26, 27, 28, 29, 30, 31,

  167. };

  168. 

  169. static uint8_t mpeg1_index_run[2][64];

  170. static int8_t mpeg1_max_level[2][64];

  171. 

  172. static RLTable rl_mpeg1 = {

  173.     111,

  174.     111,

  175.     mpeg1_vlc,

  176.     mpeg1_run,

  177.     mpeg1_level,

  178. };

  179. 

  180. static RLTable rl_mpeg2 = {

  181.     111,

  182.     111,

  183.     mpeg2_vlc,

  184.     mpeg1_run,

  185.     mpeg1_level,

  186. };

  187. 

  188. static const uint8_t mbAddrIncrTable[36][2] = {

  189.     {0x1, 1},

  190.     {0x3, 3},

  191.     {0x2, 3},

  192.     {0x3, 4},

  193.     {0x2, 4},

  194.     {0x3, 5},

  195.     {0x2, 5},

  196.     {0x7, 7},

  197.     {0x6, 7},

  198.     {0xb, 8},

  199.     {0xa, 8},

  200.     {0x9, 8},

  201.     {0x8, 8},

  202.     {0x7, 8},

  203.     {0x6, 8},

  204.     {0x17, 10},

  205.     {0x16, 10},

  206.     {0x15, 10},

  207.     {0x14, 10},

  208.     {0x13, 10},

  209.     {0x12, 10},

  210.     {0x23, 11},

  211.     {0x22, 11},

  212.     {0x21, 11},

  213.     {0x20, 11},

  214.     {0x1f, 11},

  215.     {0x1e, 11},

  216.     {0x1d, 11},

  217.     {0x1c, 11},

  218.     {0x1b, 11},

  219.     {0x1a, 11},

  220.     {0x19, 11},

  221.     {0x18, 11},

  222.     {0x8, 11}, /* escape */

  223.     {0xf, 11}, /* stuffing */

  224.     {0x0, 8}, /* end (and 15 more 0 bits should follow) */

  225. };

  226. 

  227. static const uint8_t mbPatTable[63][2] = {

  228.     {0xb, 5},

  229.     {0x9, 5},

  230.     {0xd, 6},

  231.     {0xd, 4},

  232.     {0x17, 7},

  233.     {0x13, 7},

  234.     {0x1f, 8},

  235.     {0xc, 4},

  236.     {0x16, 7},

  237.     {0x12, 7},

  238.     {0x1e, 8},

  239.     {0x13, 5},

  240.     {0x1b, 8},

  241.     {0x17, 8},

  242.     {0x13, 8},

  243.     {0xb, 4},

  244.     {0x15, 7},

  245.     {0x11, 7},

  246.     {0x1d, 8},

  247.     {0x11, 5},

  248.     {0x19, 8},

  249.     {0x15, 8},

  250.     {0x11, 8},

  251.     {0xf, 6},

  252.     {0xf, 8},

  253.     {0xd, 8},

  254.     {0x3, 9},

  255.     {0xf, 5},

  256.     {0xb, 8},

  257.     {0x7, 8},

  258.     {0x7, 9},

  259.     {0xa, 4},

  260.     {0x14, 7},

  261.     {0x10, 7},

  262.     {0x1c, 8},

  263.     {0xe, 6},

  264.     {0xe, 8},

  265.     {0xc, 8},

  266.     {0x2, 9},

  267.     {0x10, 5},

  268.     {0x18, 8},

  269.     {0x14, 8},

  270.     {0x10, 8},

  271.     {0xe, 5},

  272.     {0xa, 8},

  273.     {0x6, 8},

  274.     {0x6, 9},

  275.     {0x12, 5},

  276.     {0x1a, 8},

  277.     {0x16, 8},

  278.     {0x12, 8},

  279.     {0xd, 5},

  280.     {0x9, 8},

  281.     {0x5, 8},

  282.     {0x5, 9},

  283.     {0xc, 5},

  284.     {0x8, 8},

  285.     {0x4, 8},

  286.     {0x4, 9},

  287.     {0x7, 3},

  288.     {0xa, 5},

  289.     {0x8, 5},

  290.     {0xc, 6}

  291. };

  292. 

  293. #define MB_TYPE_PAT       0x40000000

  294. #define MB_TYPE_ZERO_MV   0x20000000

  295. #define IS_ZERO_MV(a)   ((a)&MB_TYPE_ZERO_MV)

  296. #define IS_PAT(a)       ((a)&MB_TYPE_PAT)

  297. 

  298. static const uint8_t table_mb_ptype[7][2] = {

  299.     { 3, 5 }, // 0x01 MB_INTRA

  300.     { 1, 2 }, // 0x02 MB_PAT

  301.     { 1, 3 }, // 0x08 MB_FOR

  302.     { 1, 1 }, // 0x0A MB_FOR|MB_PAT

  303.     { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA

  304.     { 1, 5 }, // 0x12 MB_QUANT|MB_PAT

  305.     { 2, 5 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT

  306. };

  307. 

  308. static const uint32_t ptype2mb_type[7] = {

  309.                     MB_TYPE_INTRA,

  310.                     MB_TYPE_L0 | MB_TYPE_PAT | MB_TYPE_ZERO_MV | MB_TYPE_16x16,

  311.                     MB_TYPE_L0,

  312.                     MB_TYPE_L0 | MB_TYPE_PAT,

  313.     MB_TYPE_QUANT | MB_TYPE_INTRA,

  314.     MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_PAT | MB_TYPE_ZERO_MV | MB_TYPE_16x16,

  315.     MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_PAT,

  316. };

  317. 

  318. static const uint8_t table_mb_btype[11][2] = {

  319.     { 3, 5 }, // 0x01 MB_INTRA

  320.     { 2, 3 }, // 0x04 MB_BACK

  321.     { 3, 3 }, // 0x06 MB_BACK|MB_PAT

  322.     { 2, 4 }, // 0x08 MB_FOR

  323.     { 3, 4 }, // 0x0A MB_FOR|MB_PAT

  324.     { 2, 2 }, // 0x0C MB_FOR|MB_BACK

  325.     { 3, 2 }, // 0x0E MB_FOR|MB_BACK|MB_PAT

  326.     { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA

  327.     { 2, 6 }, // 0x16 MB_QUANT|MB_BACK|MB_PAT

  328.     { 3, 6 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT

  329.     { 2, 5 }, // 0x1E MB_QUANT|MB_FOR|MB_BACK|MB_PAT

  330. };

  331. 

  332. static const uint32_t btype2mb_type[11] = {

  333.                     MB_TYPE_INTRA,

  334.                     MB_TYPE_L1,

  335.                     MB_TYPE_L1   | MB_TYPE_PAT,

  336.                     MB_TYPE_L0,

  337.                     MB_TYPE_L0   | MB_TYPE_PAT,

  338.                     MB_TYPE_L0L1,

  339.                     MB_TYPE_L0L1 | MB_TYPE_PAT,

  340.     MB_TYPE_QUANT | MB_TYPE_INTRA,

  341.     MB_TYPE_QUANT | MB_TYPE_L1   | MB_TYPE_PAT,

  342.     MB_TYPE_QUANT | MB_TYPE_L0   | MB_TYPE_PAT,

  343.     MB_TYPE_QUANT | MB_TYPE_L0L1 | MB_TYPE_PAT,

  344. };

  345. 

  346. static const uint8_t mbMotionVectorTable[17][2] = {

  347. { 0x1, 1 },

  348. { 0x1, 2 },

  349. { 0x1, 3 },

  350. { 0x1, 4 },

  351. { 0x3, 6 },

  352. { 0x5, 7 },

  353. { 0x4, 7 },

  354. { 0x3, 7 },

  355. { 0xb, 9 },

  356. { 0xa, 9 },

  357. { 0x9, 9 },

  358. { 0x11, 10 },

  359. { 0x10, 10 },

  360. { 0xf, 10 },

  361. { 0xe, 10 },

  362. { 0xd, 10 },

  363. { 0xc, 10 },

  364. };

  365. 

  366. #define MPEG1_FRAME_RATE_BASE 1001

  367. 

  368. static const int frame_rate_tab[16] = {

  369.         0,        

  370.     24000,

  371.     24024,

  372.     25025,

  373.     30000,

  374.     30030,

  375.     50050,

  376.     60000,

  377.     60060,

  378.   // Xing's 15fps: (9)

  379.     15015,

  380.   // libmpeg3's "Unofficial economy rates": (10-13)

  381.      5005,

  382.     10010,

  383.     12012,

  384.     15015,

  385.   // random, just to avoid segfault !never encode these

  386.     25025,

  387.     25025,

  388. };

  389. 

  390. static const uint8_t non_linear_qscale[32] = {

  391.     0, 1, 2, 3, 4, 5, 6, 7,

  392.     8,10,12,14,16,18,20,22,

  393.     24,28,32,36,40,44,48,52,

  394.     56,64,72,80,88,96,104,112,

  395. };

  396. 

  397. uint8_t ff_mpeg1_dc_scale_table[128]={ // MN: mpeg2 really can have such large qscales?

  398. //  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

  399.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  400.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  401.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  402.     8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,

  403. };

  404. 

  405. static const float mpeg1_aspect[16]={

  406.     0.0000,

  407.     1.0000,

  408.     0.6735,

  409.     0.7031,

  410.     

  411.     0.7615,

  412.     0.8055,

  413.     0.8437,

  414.     0.8935,

  415. 

  416.     0.9157,

  417.     0.9815,

  418.     1.0255,

  419.     1.0695,

  420. 

  421.     1.0950,

  422.     1.1575,

  423.     1.2015,

  424. };

  425. 

  426. static const float mpeg2_aspect[16]={

  427.     0,

  428.     1.0,

  429.     -3.0/4.0,

  430.     -9.0/16.0,

  431.     -1.0/2.21,

  432. };