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FFmpeg/libavcodec/mpeg12data.h

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  1. /*

  2.  * MPEG1 codec / MPEG2 decoder

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

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

  5.  *

  6.  * This library is free software; you can redistribute it and/or

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

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

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

  10.  *

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

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

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

  14.  * Lesser General Public License for more details.

  15.  *

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

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

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

  19.  */

  20. 

  21. /**

  22.  * @file mpeg12data.h

  23.  * MPEG1/2 tables.

  24.  */

  25. 

  26. const int16_t ff_mpeg1_default_intra_matrix[64] = {

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

  28.         16, 16, 22, 24, 27, 29, 34, 37,

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

  30.         22, 22, 26, 27, 29, 34, 37, 40,

  31.         22, 26, 27, 29, 32, 35, 40, 48,

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

  33.         26, 27, 29, 34, 38, 46, 56, 69,

  34.         27, 29, 35, 38, 46, 56, 69, 83

  35. };

  36. 

  37. const int16_t ff_mpeg1_default_non_intra_matrix[64] = {

  38.     16, 16, 16, 16, 16, 16, 16, 16,

  39.     16, 16, 16, 16, 16, 16, 16, 16,

  40.     16, 16, 16, 16, 16, 16, 16, 16,

  41.     16, 16, 16, 16, 16, 16, 16, 16,

  42.     16, 16, 16, 16, 16, 16, 16, 16,

  43.     16, 16, 16, 16, 16, 16, 16, 16,

  44.     16, 16, 16, 16, 16, 16, 16, 16,

  45.     16, 16, 16, 16, 16, 16, 16, 16,

  46. };

  47. 

  48. static const uint16_t vlc_dc_lum_code[12] = {

  49.     0x4, 0x0, 0x1, 0x5, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x1ff,

  50. };

  51. static const unsigned char vlc_dc_lum_bits[12] = {

  52.     3, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 9,

  53. };

  54. 

  55. const uint16_t vlc_dc_chroma_code[12] = {

  56.     0x0, 0x1, 0x2, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x3fe, 0x3ff,

  57. };

  58. const unsigned char vlc_dc_chroma_bits[12] = {

  59.     2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10,

  60. };

  61. 

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

  63.  { 0x3, 2 }, { 0x4, 4 }, { 0x5, 5 }, { 0x6, 7 },

  64.  { 0x26, 8 }, { 0x21, 8 }, { 0xa, 10 }, { 0x1d, 12 },

  65.  { 0x18, 12 }, { 0x13, 12 }, { 0x10, 12 }, { 0x1a, 13 },

  66.  { 0x19, 13 }, { 0x18, 13 }, { 0x17, 13 }, { 0x1f, 14 },

  67.  { 0x1e, 14 }, { 0x1d, 14 }, { 0x1c, 14 }, { 0x1b, 14 },

  68.  { 0x1a, 14 }, { 0x19, 14 }, { 0x18, 14 }, { 0x17, 14 },

  69.  { 0x16, 14 }, { 0x15, 14 }, { 0x14, 14 }, { 0x13, 14 },

  70.  { 0x12, 14 }, { 0x11, 14 }, { 0x10, 14 }, { 0x18, 15 },

  71.  { 0x17, 15 }, { 0x16, 15 }, { 0x15, 15 }, { 0x14, 15 },

  72.  { 0x13, 15 }, { 0x12, 15 }, { 0x11, 15 }, { 0x10, 15 },

  73.  { 0x3, 3 }, { 0x6, 6 }, { 0x25, 8 }, { 0xc, 10 },

  74.  { 0x1b, 12 }, { 0x16, 13 }, { 0x15, 13 }, { 0x1f, 15 },

  75.  { 0x1e, 15 }, { 0x1d, 15 }, { 0x1c, 15 }, { 0x1b, 15 },

  76.  { 0x1a, 15 }, { 0x19, 15 }, { 0x13, 16 }, { 0x12, 16 },

  77.  { 0x11, 16 }, { 0x10, 16 }, { 0x5, 4 }, { 0x4, 7 },

  78.  { 0xb, 10 }, { 0x14, 12 }, { 0x14, 13 }, { 0x7, 5 },

  79.  { 0x24, 8 }, { 0x1c, 12 }, { 0x13, 13 }, { 0x6, 5 },

  80.  { 0xf, 10 }, { 0x12, 12 }, { 0x7, 6 }, { 0x9, 10 },

  81.  { 0x12, 13 }, { 0x5, 6 }, { 0x1e, 12 }, { 0x14, 16 },

  82.  { 0x4, 6 }, { 0x15, 12 }, { 0x7, 7 }, { 0x11, 12 },

  83.  { 0x5, 7 }, { 0x11, 13 }, { 0x27, 8 }, { 0x10, 13 },

  84.  { 0x23, 8 }, { 0x1a, 16 }, { 0x22, 8 }, { 0x19, 16 },

  85.  { 0x20, 8 }, { 0x18, 16 }, { 0xe, 10 }, { 0x17, 16 },

  86.  { 0xd, 10 }, { 0x16, 16 }, { 0x8, 10 }, { 0x15, 16 },

  87.  { 0x1f, 12 }, { 0x1a, 12 }, { 0x19, 12 }, { 0x17, 12 },

  88.  { 0x16, 12 }, { 0x1f, 13 }, { 0x1e, 13 }, { 0x1d, 13 },

  89.  { 0x1c, 13 }, { 0x1b, 13 }, { 0x1f, 16 }, { 0x1e, 16 },

  90.  { 0x1d, 16 }, { 0x1c, 16 }, { 0x1b, 16 },

  91.  { 0x1, 6 }, /* escape */

  92.  { 0x2, 2 }, /* EOB */

  93. };

  94. 

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

  96.   {0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5},

  97.   {0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7},

  98.   {0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8},

  99.   {0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14},

  100.   {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14},

  101.   {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14},

  102.   {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14},

  103.   {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15},

  104.   {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15},

  105.   {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15},

  106.   {0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8},

  107.   {0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15},

  108.   {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15},

  109.   {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16},

  110.   {0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7},

  111.   {0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5},

  112.   {0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6},

  113.   {0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9},

  114.   {0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16},

  115.   {0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12},

  116.   {0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13},

  117.   {0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16},

  118.   {0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16},

  119.   {0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16},

  120.   {0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12},

  121.   {0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13},

  122.   {0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16},

  123.   {0x1d,16}, {0x1c,16}, {0x1b,16},

  124.   {0x01,6}, /* escape */

  125.   {0x06,4}, /* EOB */

  126. };

  127. 

  128. static const int8_t mpeg1_level[111] = {

  129.   1,  2,  3,  4,  5,  6,  7,  8,

  130.   9, 10, 11, 12, 13, 14, 15, 16,

  131.  17, 18, 19, 20, 21, 22, 23, 24,

  132.  25, 26, 27, 28, 29, 30, 31, 32,

  133.  33, 34, 35, 36, 37, 38, 39, 40,

  134.   1,  2,  3,  4,  5,  6,  7,  8,

  135.   9, 10, 11, 12, 13, 14, 15, 16,

  136.  17, 18,  1,  2,  3,  4,  5,  1,

  137.   2,  3,  4,  1,  2,  3,  1,  2,

  138.   3,  1,  2,  3,  1,  2,  1,  2,

  139.   1,  2,  1,  2,  1,  2,  1,  2,

  140.   1,  2,  1,  2,  1,  2,  1,  2,

  141.   1,  1,  1,  1,  1,  1,  1,  1,

  142.   1,  1,  1,  1,  1,  1,  1,

  143. };

  144. 

  145. static const int8_t mpeg1_run[111] = {

  146.   0,  0,  0,  0,  0,  0,  0,  0,

  147.   0,  0,  0,  0,  0,  0,  0,  0,

  148.   0,  0,  0,  0,  0,  0,  0,  0,

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

  150.   0,  0,  0,  0,  0,  0,  0,  0,

  151.   1,  1,  1,  1,  1,  1,  1,  1,

  152.   1,  1,  1,  1,  1,  1,  1,  1,

  153.   1,  1,  2,  2,  2,  2,  2,  3,

  154.   3,  3,  3,  4,  4,  4,  5,  5,

  155.   5,  6,  6,  6,  7,  7,  8,  8,

  156.   9,  9, 10, 10, 11, 11, 12, 12,

  157.  13, 13, 14, 14, 15, 15, 16, 16,

  158.  17, 18, 19, 20, 21, 22, 23, 24,

  159.  25, 26, 27, 28, 29, 30, 31,

  160. };

  161. 

  162. static RLTable rl_mpeg1 = {

  163.     111,

  164.     111,

  165.     mpeg1_vlc,

  166.     mpeg1_run,

  167.     mpeg1_level,

  168. };

  169. 

  170. static RLTable rl_mpeg2 = {

  171.     111,

  172.     111,

  173.     mpeg2_vlc,

  174.     mpeg1_run,

  175.     mpeg1_level,

  176. };

  177. 

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

  179.     {0x1, 1},

  180.     {0x3, 3},

  181.     {0x2, 3},

  182.     {0x3, 4},

  183.     {0x2, 4},

  184.     {0x3, 5},

  185.     {0x2, 5},

  186.     {0x7, 7},

  187.     {0x6, 7},

  188.     {0xb, 8},

  189.     {0xa, 8},

  190.     {0x9, 8},

  191.     {0x8, 8},

  192.     {0x7, 8},

  193.     {0x6, 8},

  194.     {0x17, 10},

  195.     {0x16, 10},

  196.     {0x15, 10},

  197.     {0x14, 10},

  198.     {0x13, 10},

  199.     {0x12, 10},

  200.     {0x23, 11},

  201.     {0x22, 11},

  202.     {0x21, 11},

  203.     {0x20, 11},

  204.     {0x1f, 11},

  205.     {0x1e, 11},

  206.     {0x1d, 11},

  207.     {0x1c, 11},

  208.     {0x1b, 11},

  209.     {0x1a, 11},

  210.     {0x19, 11},

  211.     {0x18, 11},

  212.     {0x8, 11}, /* escape */

  213.     {0xf, 11}, /* stuffing */

  214.     {0x0, 8}, /* end (and 15 more 0 bits should follow) */

  215. };

  216. 

  217. static const uint8_t mbPatTable[64][2] = {

  218.     {0x1, 9},

  219.     {0xb, 5},

  220.     {0x9, 5},

  221.     {0xd, 6},

  222.     {0xd, 4},

  223.     {0x17, 7},

  224.     {0x13, 7},

  225.     {0x1f, 8},

  226.     {0xc, 4},

  227.     {0x16, 7},

  228.     {0x12, 7},

  229.     {0x1e, 8},

  230.     {0x13, 5},

  231.     {0x1b, 8},

  232.     {0x17, 8},

  233.     {0x13, 8},

  234.     {0xb, 4},

  235.     {0x15, 7},

  236.     {0x11, 7},

  237.     {0x1d, 8},

  238.     {0x11, 5},

  239.     {0x19, 8},

  240.     {0x15, 8},

  241.     {0x11, 8},

  242.     {0xf, 6},

  243.     {0xf, 8},

  244.     {0xd, 8},

  245.     {0x3, 9},

  246.     {0xf, 5},

  247.     {0xb, 8},

  248.     {0x7, 8},

  249.     {0x7, 9},

  250.     {0xa, 4},

  251.     {0x14, 7},

  252.     {0x10, 7},

  253.     {0x1c, 8},

  254.     {0xe, 6},

  255.     {0xe, 8},

  256.     {0xc, 8},

  257.     {0x2, 9},

  258.     {0x10, 5},

  259.     {0x18, 8},

  260.     {0x14, 8},

  261.     {0x10, 8},

  262.     {0xe, 5},

  263.     {0xa, 8},

  264.     {0x6, 8},

  265.     {0x6, 9},

  266.     {0x12, 5},

  267.     {0x1a, 8},

  268.     {0x16, 8},

  269.     {0x12, 8},

  270.     {0xd, 5},

  271.     {0x9, 8},

  272.     {0x5, 8},

  273.     {0x5, 9},

  274.     {0xc, 5},

  275.     {0x8, 8},

  276.     {0x4, 8},

  277.     {0x4, 9},

  278.     {0x7, 3},

  279.     {0xa, 5},

  280.     {0x8, 5},

  281.     {0xc, 6}

  282. };

  283. 

  284. #define MB_TYPE_ZERO_MV   0x20000000

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

  286. 

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

  288.     { 3, 5 }, // 0x01 MB_INTRA

  289.     { 1, 2 }, // 0x02 MB_PAT

  290.     { 1, 3 }, // 0x08 MB_FOR

  291.     { 1, 1 }, // 0x0A MB_FOR|MB_PAT

  292.     { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA

  293.     { 1, 5 }, // 0x12 MB_QUANT|MB_PAT

  294.     { 2, 5 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT

  295. };

  296. 

  297. static const uint32_t ptype2mb_type[7] = {

  298.                     MB_TYPE_INTRA,

  299.                     MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16,

  300.                     MB_TYPE_L0,

  301.                     MB_TYPE_L0 | MB_TYPE_CBP,

  302.     MB_TYPE_QUANT | MB_TYPE_INTRA,

  303.     MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16,

  304.     MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP,

  305. };

  306. 

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

  308.     { 3, 5 }, // 0x01 MB_INTRA

  309.     { 2, 3 }, // 0x04 MB_BACK

  310.     { 3, 3 }, // 0x06 MB_BACK|MB_PAT

  311.     { 2, 4 }, // 0x08 MB_FOR

  312.     { 3, 4 }, // 0x0A MB_FOR|MB_PAT

  313.     { 2, 2 }, // 0x0C MB_FOR|MB_BACK

  314.     { 3, 2 }, // 0x0E MB_FOR|MB_BACK|MB_PAT

  315.     { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA

  316.     { 2, 6 }, // 0x16 MB_QUANT|MB_BACK|MB_PAT

  317.     { 3, 6 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT

  318.     { 2, 5 }, // 0x1E MB_QUANT|MB_FOR|MB_BACK|MB_PAT

  319. };

  320. 

  321. static const uint32_t btype2mb_type[11] = {

  322.                     MB_TYPE_INTRA,

  323.                     MB_TYPE_L1,

  324.                     MB_TYPE_L1   | MB_TYPE_CBP,

  325.                     MB_TYPE_L0,

  326.                     MB_TYPE_L0   | MB_TYPE_CBP,

  327.                     MB_TYPE_L0L1,

  328.                     MB_TYPE_L0L1 | MB_TYPE_CBP,

  329.     MB_TYPE_QUANT | MB_TYPE_INTRA,

  330.     MB_TYPE_QUANT | MB_TYPE_L1   | MB_TYPE_CBP,

  331.     MB_TYPE_QUANT | MB_TYPE_L0   | MB_TYPE_CBP,

  332.     MB_TYPE_QUANT | MB_TYPE_L0L1 | MB_TYPE_CBP,

  333. };

  334. 

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

  336. { 0x1, 1 },

  337. { 0x1, 2 },

  338. { 0x1, 3 },

  339. { 0x1, 4 },

  340. { 0x3, 6 },

  341. { 0x5, 7 },

  342. { 0x4, 7 },

  343. { 0x3, 7 },

  344. { 0xb, 9 },

  345. { 0xa, 9 },

  346. { 0x9, 9 },

  347. { 0x11, 10 },

  348. { 0x10, 10 },

  349. { 0xf, 10 },

  350. { 0xe, 10 },

  351. { 0xd, 10 },

  352. { 0xc, 10 },

  353. };

  354. 

  355. const AVRational ff_frame_rate_tab[] = {

  356.     {    0,    0},

  357.     {24000, 1001},

  358.     {   24,    1},

  359.     {   25,    1},

  360.     {30000, 1001},

  361.     {   30,    1},

  362.     {   50,    1},

  363.     {60000, 1001},

  364.     {   60,    1},

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

  366.     {   15,    1},

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

  368.     {    5,    1},

  369.     {   10,    1},

  370.     {   12,    1},

  371.     {   15,    1},

  372.     {    0,    0},

  373. };

  374. 

  375. static const uint8_t non_linear_qscale[32] = {

  376.     0, 1, 2, 3, 4, 5, 6, 7,

  377.     8,10,12,14,16,18,20,22,

  378.     24,28,32,36,40,44,48,52,

  379.     56,64,72,80,88,96,104,112,

  380. };

  381. 

  382. const uint8_t ff_mpeg1_dc_scale_table[128]={

  383. //  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

  384.     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,

  385.     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,

  386.     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,

  387.     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,

  388. };

  389. 

  390. static const uint8_t mpeg2_dc_scale_table1[128]={

  391. //  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

  392.     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,

  393.     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,

  394.     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,

  395.     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,

  396. };

  397. 

  398. static const uint8_t mpeg2_dc_scale_table2[128]={

  399. //  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

  400.     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,

  401.     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,

  402.     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,

  403.     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,

  404. };

  405. 

  406. static const uint8_t mpeg2_dc_scale_table3[128]={

  407. //  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

  408.     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,

  409.     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,

  410.     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,

  411.     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,

  412. };

  413. 

  414. static const uint8_t *mpeg2_dc_scale_table[4]={

  415.     ff_mpeg1_dc_scale_table,

  416.     mpeg2_dc_scale_table1,

  417.     mpeg2_dc_scale_table2,

  418.     mpeg2_dc_scale_table3,

  419. };

  420. 

  421. static const float mpeg1_aspect[16]={

  422.     0.0000,

  423.     1.0000,

  424.     0.6735,

  425.     0.7031,

  426. 

  427.     0.7615,

  428.     0.8055,

  429.     0.8437,

  430.     0.8935,

  431. 

  432.     0.9157,

  433.     0.9815,

  434.     1.0255,

  435.     1.0695,

  436. 

  437.     1.0950,

  438.     1.1575,

  439.     1.2015,

  440. };

  441. 

  442. static const AVRational mpeg2_aspect[16]={

  443.     {0,1},

  444.     {1,1},

  445.     {4,3},

  446.     {16,9},

  447.     {221,100},

  448.     {0,1},

  449.     {0,1},

  450.     {0,1},

  451.     {0,1},

  452.     {0,1},

  453.     {0,1},

  454.     {0,1},

  455.     {0,1},

  456.     {0,1},

  457.     {0,1},

  458.     {0,1},

  459. };

  460. 

  461. static const uint8_t svcd_scan_offset_placeholder[14]={

  462.     0x10, 0x0E,

  463.     0x00, 0x80, 0x81,

  464.     0x00, 0x80, 0x81,

  465.     0xff, 0xff, 0xff,

  466.     0xff, 0xff, 0xff,

  467. };