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FFmpeg/libavcodec/h263data.h

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  1. /**

  2.  * @file h263data.h

  3.  * H.263 tables.

  4.  */

  5. 

  6. 

  7. /* intra MCBPC, mb_type = (intra), then (intraq) */

  8. const uint8_t intra_MCBPC_code[9] = { 1, 1, 2, 3, 1, 1, 2, 3, 1 };

  9. const uint8_t intra_MCBPC_bits[9] = { 1, 3, 3, 3, 4, 6, 6, 6, 9 };

  10. 

  11. /* inter MCBPC, mb_type = (inter), (intra), (interq), (intraq), (inter4v) */

  12. /* Changed the tables for interq and inter4v+q, following the standard ** Juanjo ** */

  13. const uint8_t inter_MCBPC_code[28] = { 

  14.     1, 3, 2, 5, 

  15.     3, 4, 3, 3, 

  16.     3, 7, 6, 5,

  17.     4, 4, 3, 2,

  18.     2, 5, 4, 5,

  19.     1, 0, 0, 0, /* Stuffing */

  20.     2, 12, 14, 15,

  21. };

  22. const uint8_t inter_MCBPC_bits[28] = { 

  23.     1, 4, 4, 6, /* inter  */

  24.     5, 8, 8, 7, /* intra  */

  25.     3, 7, 7, 9, /* interQ */

  26.     6, 9, 9, 9, /* intraQ */

  27.     3, 7, 7, 8, /* inter4 */

  28.     9, 0, 0, 0, /* Stuffing */

  29.     11, 13, 13, 13,/* inter4Q*/

  30. };

  31. 

  32. const uint8_t cbpy_tab[16][2] =

  33. {

  34.   {3,4}, {5,5}, {4,5}, {9,4}, {3,5}, {7,4}, {2,6}, {11,4},

  35.   {2,5}, {3,6}, {5,4}, {10,4}, {4,4}, {8,4}, {6,4}, {3,2}

  36. };

  37. 

  38. const uint8_t mvtab[33][2] =

  39. {

  40.   {1,1}, {1,2}, {1,3}, {1,4}, {3,6}, {5,7}, {4,7}, {3,7},

  41.   {11,9}, {10,9}, {9,9}, {17,10}, {16,10}, {15,10}, {14,10}, {13,10},

  42.   {12,10}, {11,10}, {10,10}, {9,10}, {8,10}, {7,10}, {6,10}, {5,10},

  43.   {4,10}, {7,11}, {6,11}, {5,11}, {4,11}, {3,11}, {2,11}, {3,12},

  44.   {2,12}

  45. };

  46. 

  47. /* third non intra table */

  48. const uint16_t inter_vlc[103][2] = {

  49. { 0x2, 2 },{ 0xf, 4 },{ 0x15, 6 },{ 0x17, 7 },

  50. { 0x1f, 8 },{ 0x25, 9 },{ 0x24, 9 },{ 0x21, 10 },

  51. { 0x20, 10 },{ 0x7, 11 },{ 0x6, 11 },{ 0x20, 11 },

  52. { 0x6, 3 },{ 0x14, 6 },{ 0x1e, 8 },{ 0xf, 10 },

  53. { 0x21, 11 },{ 0x50, 12 },{ 0xe, 4 },{ 0x1d, 8 },

  54. { 0xe, 10 },{ 0x51, 12 },{ 0xd, 5 },{ 0x23, 9 },

  55. { 0xd, 10 },{ 0xc, 5 },{ 0x22, 9 },{ 0x52, 12 },

  56. { 0xb, 5 },{ 0xc, 10 },{ 0x53, 12 },{ 0x13, 6 },

  57. { 0xb, 10 },{ 0x54, 12 },{ 0x12, 6 },{ 0xa, 10 },

  58. { 0x11, 6 },{ 0x9, 10 },{ 0x10, 6 },{ 0x8, 10 },

  59. { 0x16, 7 },{ 0x55, 12 },{ 0x15, 7 },{ 0x14, 7 },

  60. { 0x1c, 8 },{ 0x1b, 8 },{ 0x21, 9 },{ 0x20, 9 },

  61. { 0x1f, 9 },{ 0x1e, 9 },{ 0x1d, 9 },{ 0x1c, 9 },

  62. { 0x1b, 9 },{ 0x1a, 9 },{ 0x22, 11 },{ 0x23, 11 },

  63. { 0x56, 12 },{ 0x57, 12 },{ 0x7, 4 },{ 0x19, 9 },

  64. { 0x5, 11 },{ 0xf, 6 },{ 0x4, 11 },{ 0xe, 6 },

  65. { 0xd, 6 },{ 0xc, 6 },{ 0x13, 7 },{ 0x12, 7 },

  66. { 0x11, 7 },{ 0x10, 7 },{ 0x1a, 8 },{ 0x19, 8 },

  67. { 0x18, 8 },{ 0x17, 8 },{ 0x16, 8 },{ 0x15, 8 },

  68. { 0x14, 8 },{ 0x13, 8 },{ 0x18, 9 },{ 0x17, 9 },

  69. { 0x16, 9 },{ 0x15, 9 },{ 0x14, 9 },{ 0x13, 9 },

  70. { 0x12, 9 },{ 0x11, 9 },{ 0x7, 10 },{ 0x6, 10 },

  71. { 0x5, 10 },{ 0x4, 10 },{ 0x24, 11 },{ 0x25, 11 },

  72. { 0x26, 11 },{ 0x27, 11 },{ 0x58, 12 },{ 0x59, 12 },

  73. { 0x5a, 12 },{ 0x5b, 12 },{ 0x5c, 12 },{ 0x5d, 12 },

  74. { 0x5e, 12 },{ 0x5f, 12 },{ 0x3, 7 },

  75. };

  76. 

  77. const int8_t inter_level[102] = {

  78.   1,  2,  3,  4,  5,  6,  7,  8,

  79.   9, 10, 11, 12,  1,  2,  3,  4,

  80.   5,  6,  1,  2,  3,  4,  1,  2,

  81.   3,  1,  2,  3,  1,  2,  3,  1,

  82.   2,  3,  1,  2,  1,  2,  1,  2,

  83.   1,  2,  1,  1,  1,  1,  1,  1,

  84.   1,  1,  1,  1,  1,  1,  1,  1,

  85.   1,  1,  1,  2,  3,  1,  2,  1,

  86.   1,  1,  1,  1,  1,  1,  1,  1,

  87.   1,  1,  1,  1,  1,  1,  1,  1,

  88.   1,  1,  1,  1,  1,  1,  1,  1,

  89.   1,  1,  1,  1,  1,  1,  1,  1,

  90.   1,  1,  1,  1,  1,  1,

  91. };

  92. 

  93. const int8_t inter_run[102] = {

  94.   0,  0,  0,  0,  0,  0,  0,  0,

  95.   0,  0,  0,  0,  1,  1,  1,  1,

  96.   1,  1,  2,  2,  2,  2,  3,  3,

  97.   3,  4,  4,  4,  5,  5,  5,  6,

  98.   6,  6,  7,  7,  8,  8,  9,  9,

  99.  10, 10, 11, 12, 13, 14, 15, 16,

  100.  17, 18, 19, 20, 21, 22, 23, 24,

  101.  25, 26,  0,  0,  0,  1,  1,  2,

  102.   3,  4,  5,  6,  7,  8,  9, 10,

  103.  11, 12, 13, 14, 15, 16, 17, 18,

  104.  19, 20, 21, 22, 23, 24, 25, 26,

  105.  27, 28, 29, 30, 31, 32, 33, 34,

  106.  35, 36, 37, 38, 39, 40,

  107. };

  108. 

  109. static RLTable rl_inter = {

  110.     102,

  111.     58,

  112.     inter_vlc,

  113.     inter_run,

  114.     inter_level,

  115. };

  116. 

  117. const uint16_t intra_vlc_aic[103][2] = {

  118. {  0x2,  2 }, {  0x6,  3 }, {  0xe,  4 }, {  0xc,  5 }, 

  119. {  0xd,  5 }, { 0x10,  6 }, { 0x11,  6 }, { 0x12,  6 }, 

  120. { 0x16,  7 }, { 0x1b,  8 }, { 0x20,  9 }, { 0x21,  9 }, 

  121. { 0x1a,  9 }, { 0x1b,  9 }, { 0x1c,  9 }, { 0x1d,  9 }, 

  122. { 0x1e,  9 }, { 0x1f,  9 }, { 0x23, 11 }, { 0x22, 11 }, 

  123. { 0x57, 12 }, { 0x56, 12 }, { 0x55, 12 }, { 0x54, 12 }, 

  124. { 0x53, 12 }, {  0xf,  4 }, { 0x14,  6 }, { 0x14,  7 }, 

  125. { 0x1e,  8 }, {  0xf, 10 }, { 0x21, 11 }, { 0x50, 12 }, 

  126. {  0xb,  5 }, { 0x15,  7 }, {  0xe, 10 }, {  0x9, 10 }, 

  127. { 0x15,  6 }, { 0x1d,  8 }, {  0xd, 10 }, { 0x51, 12 }, 

  128. { 0x13,  6 }, { 0x23,  9 }, {  0x7, 11 }, { 0x17,  7 }, 

  129. { 0x22,  9 }, { 0x52, 12 }, { 0x1c,  8 }, {  0xc, 10 }, 

  130. { 0x1f,  8 }, {  0xb, 10 }, { 0x25,  9 }, {  0xa, 10 }, 

  131. { 0x24,  9 }, {  0x6, 11 }, { 0x21, 10 }, { 0x20, 10 }, 

  132. {  0x8, 10 }, { 0x20, 11 }, {  0x7,  4 }, {  0xc,  6 }, 

  133. { 0x10,  7 }, { 0x13,  8 }, { 0x11,  9 }, { 0x12,  9 }, 

  134. {  0x4, 10 }, { 0x27, 11 }, { 0x26, 11 }, { 0x5f, 12 }, 

  135. {  0xf,  6 }, { 0x13,  9 }, {  0x5, 10 }, { 0x25, 11 }, 

  136. {  0xe,  6 }, { 0x14,  9 }, { 0x24, 11 }, {  0xd,  6 }, 

  137. {  0x6, 10 }, { 0x5e, 12 }, { 0x11,  7 }, {  0x7, 10 }, 

  138. { 0x13,  7 }, { 0x5d, 12 }, { 0x12,  7 }, { 0x5c, 12 }, 

  139. { 0x14,  8 }, { 0x5b, 12 }, { 0x15,  8 }, { 0x1a,  8 }, 

  140. { 0x19,  8 }, { 0x18,  8 }, { 0x17,  8 }, { 0x16,  8 }, 

  141. { 0x19,  9 }, { 0x15,  9 }, { 0x16,  9 }, { 0x18,  9 }, 

  142. { 0x17,  9 }, {  0x4, 11 }, {  0x5, 11 }, { 0x58, 12 }, 

  143. { 0x59, 12 }, { 0x5a, 12 }, {  0x3,  7 },

  144. };

  145. 

  146. const int8_t intra_run_aic[102] = {

  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,  1,  1,  1,  1,  1,  1,  1, 

  151.  2,  2,  2,  2,  3,  3,  3,  3, 

  152.  4,  4,  4,  5,  5,  5,  6,  6, 

  153.  7,  7,  8,  8,  9,  9, 10, 11, 

  154. 12, 13,  0,  0,  0,  0,  0,  0, 

  155.  0,  0,  0,  0,  1,  1,  1,  1, 

  156.  2,  2,  2,  3,  3,  3,  4,  4, 

  157.  5,  5,  6,  6,  7,  7,  8,  9, 

  158. 10, 11, 12, 13, 14, 15, 16, 17, 

  159. 18, 19, 20, 21, 22, 23, 

  160. };

  161. 

  162. const int8_t intra_level_aic[102] = {

  163.  1,  2,  3,  4,  5,  6,  7,  8, 

  164.  9, 10, 11, 12, 13, 14, 15, 16, 

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

  166. 25,  1,  2,  3,  4,  5,  6,  7, 

  167.  1,  2,  3,  4,  1,  2,  3,  4, 

  168.  1,  2,  3,  1,  2,  3,  1,  2, 

  169.  1,  2,  1,  2,  1,  2,  1,  1, 

  170.  1,  1,  1,  2,  3,  4,  5,  6, 

  171.  7,  8,  9, 10,  1,  2,  3,  4, 

  172.  1,  2,  3,  1,  2,  3,  1,  2, 

  173.  1,  2,  1,  2,  1,  2,  1,  1, 

  174.  1,  1,  1,  1,  1,  1,  1,  1, 

  175.  1,  1,  1,  1,  1,  1,

  176. };

  177. 

  178. static RLTable rl_intra_aic = {

  179.     102,

  180.     58,

  181.     intra_vlc_aic,

  182.     intra_run_aic,

  183.     intra_level_aic,

  184. };

  185. 

  186. static const uint16_t h263_format[8][2] = {

  187.     { 0, 0 },

  188.     { 128, 96 },

  189.     { 176, 144 },

  190.     { 352, 288 },

  191.     { 704, 576 },

  192.     { 1408, 1152 },

  193. };

  194. 

  195. static uint8_t h263_aic_dc_scale_table[32]={

  196. //  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

  197.     0, 2, 4, 6, 8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62

  198. };