libavcodec/h263data.h

   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 static const uint8_t h263_mbtype_b_tab[15][2] = {
  33  {1, 1},
  34  {3, 3},
  35  {1, 5},
  36  {4, 4},
  37  {5, 4},
  38  {6, 6},
  39  {2, 4},
  40  {3, 4},
  41  {7, 6},
  42  {4, 6},
  43  {5, 6},
  44  {1, 6},
  45  {1,10},
  46  {1, 7},
  47  {1, 8},
  48 };
  49
  50 static const int h263_mb_type_b_map[15]= {
  51     MB_TYPE_DIRECT2 | MB_TYPE_L0L1,
  52     MB_TYPE_DIRECT2 | MB_TYPE_L0L1 | MB_TYPE_CBP,
  53     MB_TYPE_DIRECT2 | MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_QUANT,
  54                       MB_TYPE_L0                                 | MB_TYPE_16x16,
  55                       MB_TYPE_L0   | MB_TYPE_CBP                 | MB_TYPE_16x16,
  56                       MB_TYPE_L0   | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
  57                       MB_TYPE_L1                                 | MB_TYPE_16x16,
  58                       MB_TYPE_L1   | MB_TYPE_CBP                 | MB_TYPE_16x16,
  59                       MB_TYPE_L1   | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
  60                       MB_TYPE_L0L1                               | MB_TYPE_16x16,
  61                       MB_TYPE_L0L1 | MB_TYPE_CBP                 | MB_TYPE_16x16,
  62                       MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
  63     0, //stuffing
  64     MB_TYPE_INTRA4x4                | MB_TYPE_CBP,
  65     MB_TYPE_INTRA4x4                | MB_TYPE_CBP | MB_TYPE_QUANT,
  66 };
  67
  68 const uint8_t cbpc_b_tab[4][2] = {
  69 {0, 1},
  70 {2, 2},
  71 {7, 3},
  72 {6, 3},
  73 };
  74
  75 const uint8_t cbpy_tab[16][2] =
  76 {
  77   {3,4}, {5,5}, {4,5}, {9,4}, {3,5}, {7,4}, {2,6}, {11,4},
  78   {2,5}, {3,6}, {5,4}, {10,4}, {4,4}, {8,4}, {6,4}, {3,2}
  79 };
  80
  81 const uint8_t mvtab[33][2] =
  82 {
  83   {1,1}, {1,2}, {1,3}, {1,4}, {3,6}, {5,7}, {4,7}, {3,7},
  84   {11,9}, {10,9}, {9,9}, {17,10}, {16,10}, {15,10}, {14,10}, {13,10},
  85   {12,10}, {11,10}, {10,10}, {9,10}, {8,10}, {7,10}, {6,10}, {5,10},
  86   {4,10}, {7,11}, {6,11}, {5,11}, {4,11}, {3,11}, {2,11}, {3,12},
  87   {2,12}
  88 };
  89
  90 /* third non intra table */
  91 const uint16_t inter_vlc[103][2] = {
  92 { 0x2, 2 },{ 0xf, 4 },{ 0x15, 6 },{ 0x17, 7 },
  93 { 0x1f, 8 },{ 0x25, 9 },{ 0x24, 9 },{ 0x21, 10 },
  94 { 0x20, 10 },{ 0x7, 11 },{ 0x6, 11 },{ 0x20, 11 },
  95 { 0x6, 3 },{ 0x14, 6 },{ 0x1e, 8 },{ 0xf, 10 },
  96 { 0x21, 11 },{ 0x50, 12 },{ 0xe, 4 },{ 0x1d, 8 },
  97 { 0xe, 10 },{ 0x51, 12 },{ 0xd, 5 },{ 0x23, 9 },
  98 { 0xd, 10 },{ 0xc, 5 },{ 0x22, 9 },{ 0x52, 12 },
  99 { 0xb, 5 },{ 0xc, 10 },{ 0x53, 12 },{ 0x13, 6 },
 100 { 0xb, 10 },{ 0x54, 12 },{ 0x12, 6 },{ 0xa, 10 },
 101 { 0x11, 6 },{ 0x9, 10 },{ 0x10, 6 },{ 0x8, 10 },
 102 { 0x16, 7 },{ 0x55, 12 },{ 0x15, 7 },{ 0x14, 7 },
 103 { 0x1c, 8 },{ 0x1b, 8 },{ 0x21, 9 },{ 0x20, 9 },
 104 { 0x1f, 9 },{ 0x1e, 9 },{ 0x1d, 9 },{ 0x1c, 9 },
 105 { 0x1b, 9 },{ 0x1a, 9 },{ 0x22, 11 },{ 0x23, 11 },
 106 { 0x56, 12 },{ 0x57, 12 },{ 0x7, 4 },{ 0x19, 9 },
 107 { 0x5, 11 },{ 0xf, 6 },{ 0x4, 11 },{ 0xe, 6 },
 108 { 0xd, 6 },{ 0xc, 6 },{ 0x13, 7 },{ 0x12, 7 },
 109 { 0x11, 7 },{ 0x10, 7 },{ 0x1a, 8 },{ 0x19, 8 },
 110 { 0x18, 8 },{ 0x17, 8 },{ 0x16, 8 },{ 0x15, 8 },
 111 { 0x14, 8 },{ 0x13, 8 },{ 0x18, 9 },{ 0x17, 9 },
 112 { 0x16, 9 },{ 0x15, 9 },{ 0x14, 9 },{ 0x13, 9 },
 113 { 0x12, 9 },{ 0x11, 9 },{ 0x7, 10 },{ 0x6, 10 },
 114 { 0x5, 10 },{ 0x4, 10 },{ 0x24, 11 },{ 0x25, 11 },
 115 { 0x26, 11 },{ 0x27, 11 },{ 0x58, 12 },{ 0x59, 12 },
 116 { 0x5a, 12 },{ 0x5b, 12 },{ 0x5c, 12 },{ 0x5d, 12 },
 117 { 0x5e, 12 },{ 0x5f, 12 },{ 0x3, 7 },
 118 };
 119
 120 const int8_t inter_level[102] = {
 121   1,  2,  3,  4,  5,  6,  7,  8,
 122   9, 10, 11, 12,  1,  2,  3,  4,
 123   5,  6,  1,  2,  3,  4,  1,  2,
 124   3,  1,  2,  3,  1,  2,  3,  1,
 125   2,  3,  1,  2,  1,  2,  1,  2,
 126   1,  2,  1,  1,  1,  1,  1,  1,
 127   1,  1,  1,  1,  1,  1,  1,  1,
 128   1,  1,  1,  2,  3,  1,  2,  1,
 129   1,  1,  1,  1,  1,  1,  1,  1,
 130   1,  1,  1,  1,  1,  1,  1,  1,
 131   1,  1,  1,  1,  1,  1,  1,  1,
 132   1,  1,  1,  1,  1,  1,  1,  1,
 133   1,  1,  1,  1,  1,  1,
 134 };
 135
 136 const int8_t inter_run[102] = {
 137   0,  0,  0,  0,  0,  0,  0,  0,
 138   0,  0,  0,  0,  1,  1,  1,  1,
 139   1,  1,  2,  2,  2,  2,  3,  3,
 140   3,  4,  4,  4,  5,  5,  5,  6,
 141   6,  6,  7,  7,  8,  8,  9,  9,
 142  10, 10, 11, 12, 13, 14, 15, 16,
 143  17, 18, 19, 20, 21, 22, 23, 24,
 144  25, 26,  0,  0,  0,  1,  1,  2,
 145   3,  4,  5,  6,  7,  8,  9, 10,
 146  11, 12, 13, 14, 15, 16, 17, 18,
 147  19, 20, 21, 22, 23, 24, 25, 26,
 148  27, 28, 29, 30, 31, 32, 33, 34,
 149  35, 36, 37, 38, 39, 40,
 150 };
 151
 152 static RLTable rl_inter = {
 153     102,
 154     58,
 155     inter_vlc,
 156     inter_run,
 157     inter_level,
 158 };
 159
 160 const uint16_t intra_vlc_aic[103][2] = {
 161 {  0x2,  2 }, {  0x6,  3 }, {  0xe,  4 }, {  0xc,  5 },
 162 {  0xd,  5 }, { 0x10,  6 }, { 0x11,  6 }, { 0x12,  6 },
 163 { 0x16,  7 }, { 0x1b,  8 }, { 0x20,  9 }, { 0x21,  9 },
 164 { 0x1a,  9 }, { 0x1b,  9 }, { 0x1c,  9 }, { 0x1d,  9 },
 165 { 0x1e,  9 }, { 0x1f,  9 }, { 0x23, 11 }, { 0x22, 11 },
 166 { 0x57, 12 }, { 0x56, 12 }, { 0x55, 12 }, { 0x54, 12 },
 167 { 0x53, 12 }, {  0xf,  4 }, { 0x14,  6 }, { 0x14,  7 },
 168 { 0x1e,  8 }, {  0xf, 10 }, { 0x21, 11 }, { 0x50, 12 },
 169 {  0xb,  5 }, { 0x15,  7 }, {  0xe, 10 }, {  0x9, 10 },
 170 { 0x15,  6 }, { 0x1d,  8 }, {  0xd, 10 }, { 0x51, 12 },
 171 { 0x13,  6 }, { 0x23,  9 }, {  0x7, 11 }, { 0x17,  7 },
 172 { 0x22,  9 }, { 0x52, 12 }, { 0x1c,  8 }, {  0xc, 10 },
 173 { 0x1f,  8 }, {  0xb, 10 }, { 0x25,  9 }, {  0xa, 10 },
 174 { 0x24,  9 }, {  0x6, 11 }, { 0x21, 10 }, { 0x20, 10 },
 175 {  0x8, 10 }, { 0x20, 11 }, {  0x7,  4 }, {  0xc,  6 },
 176 { 0x10,  7 }, { 0x13,  8 }, { 0x11,  9 }, { 0x12,  9 },
 177 {  0x4, 10 }, { 0x27, 11 }, { 0x26, 11 }, { 0x5f, 12 },
 178 {  0xf,  6 }, { 0x13,  9 }, {  0x5, 10 }, { 0x25, 11 },
 179 {  0xe,  6 }, { 0x14,  9 }, { 0x24, 11 }, {  0xd,  6 },
 180 {  0x6, 10 }, { 0x5e, 12 }, { 0x11,  7 }, {  0x7, 10 },
 181 { 0x13,  7 }, { 0x5d, 12 }, { 0x12,  7 }, { 0x5c, 12 },
 182 { 0x14,  8 }, { 0x5b, 12 }, { 0x15,  8 }, { 0x1a,  8 },
 183 { 0x19,  8 }, { 0x18,  8 }, { 0x17,  8 }, { 0x16,  8 },
 184 { 0x19,  9 }, { 0x15,  9 }, { 0x16,  9 }, { 0x18,  9 },
 185 { 0x17,  9 }, {  0x4, 11 }, {  0x5, 11 }, { 0x58, 12 },
 186 { 0x59, 12 }, { 0x5a, 12 }, {  0x3,  7 },
 187 };
 188
 189 const int8_t intra_run_aic[102] = {
 190  0,  0,  0,  0,  0,  0,  0,  0,
 191  0,  0,  0,  0,  0,  0,  0,  0,
 192  0,  0,  0,  0,  0,  0,  0,  0,
 193  0,  1,  1,  1,  1,  1,  1,  1,
 194  2,  2,  2,  2,  3,  3,  3,  3,
 195  4,  4,  4,  5,  5,  5,  6,  6,
 196  7,  7,  8,  8,  9,  9, 10, 11,
 197 12, 13,  0,  0,  0,  0,  0,  0,
 198  0,  0,  0,  0,  1,  1,  1,  1,
 199  2,  2,  2,  3,  3,  3,  4,  4,
 200  5,  5,  6,  6,  7,  7,  8,  9,
 201 10, 11, 12, 13, 14, 15, 16, 17,
 202 18, 19, 20, 21, 22, 23,
 203 };
 204
 205 const int8_t intra_level_aic[102] = {
 206  1,  2,  3,  4,  5,  6,  7,  8,
 207  9, 10, 11, 12, 13, 14, 15, 16,
 208 17, 18, 19, 20, 21, 22, 23, 24,
 209 25,  1,  2,  3,  4,  5,  6,  7,
 210  1,  2,  3,  4,  1,  2,  3,  4,
 211  1,  2,  3,  1,  2,  3,  1,  2,
 212  1,  2,  1,  2,  1,  2,  1,  1,
 213  1,  1,  1,  2,  3,  4,  5,  6,
 214  7,  8,  9, 10,  1,  2,  3,  4,
 215  1,  2,  3,  1,  2,  3,  1,  2,
 216  1,  2,  1,  2,  1,  2,  1,  1,
 217  1,  1,  1,  1,  1,  1,  1,  1,
 218  1,  1,  1,  1,  1,  1,
 219 };
 220
 221 static RLTable rl_intra_aic = {
 222     102,
 223     58,
 224     intra_vlc_aic,
 225     intra_run_aic,
 226     intra_level_aic,
 227 };
 228
 229 static const uint8_t wrong_run[102] = {
 230  1,  2,  3,  5,  4, 10,  9,  8,
 231 11, 15, 17, 16, 23, 22, 21, 20,
 232 19, 18, 25, 24, 27, 26, 11,  7,
 233  6,  1,  2, 13,  2,  2,  2,  2,
 234  6, 12,  3,  9,  1,  3,  4,  3,
 235  7,  4,  1,  1,  5,  5, 14,  6,
 236  1,  7,  1,  8,  1,  1,  1,  1,
 237 10,  1,  1,  5,  9, 17, 25, 24,
 238 29, 33, 32, 41,  2, 23, 28, 31,
 239  3, 22, 30,  4, 27, 40,  8, 26,
 240  6, 39,  7, 38, 16, 37, 15, 10,
 241 11, 12, 13, 14,  1, 21, 20, 18,
 242 19,  2,  1, 34, 35, 36
 243 };
 244
 245 static const uint16_t h263_format[8][2] = {
 246     { 0, 0 },
 247     { 128, 96 },
 248     { 176, 144 },
 249     { 352, 288 },
 250     { 704, 576 },
 251     { 1408, 1152 },
 252 };
 253
 254 const uint8_t ff_aic_dc_scale_table[32]={
 255 //  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
 256     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
 257 };
 258
 259 static const uint8_t modified_quant_tab[2][32]={
 260 //  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
 261 {
 262     0, 3, 1, 2, 3, 4, 5, 6, 7, 8, 9, 9,10,11,12,13,14,15,16,17,18,18,19,20,21,22,23,24,25,26,27,28
 263 },{
 264     0, 2, 3, 4, 5, 6, 7, 8, 9,10,11,13,14,15,16,17,18,19,20,21,22,24,25,26,27,28,29,30,31,31,31,26
 265 }
 266 };
 267
 268 const uint8_t ff_h263_chroma_qscale_table[32]={
 269 //  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
 270     0, 1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 9,10,10,11,11,12,12,12,13,13,13,14,14,14,14,14,15,15,15,15,15
 271 };
 272
 273 const uint16_t ff_mba_max[6]={
 274      47,  98, 395,1583,6335,9215
 275 };
 276
 277 const uint8_t ff_mba_length[7]={
 278       6,   7,   9,  11,  13,  14,  14
 279 };
 280
 281 const uint8_t ff_h263_loop_filter_strength[32]={
 282 //  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
 283     0, 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9,10,10,10,11,11,11,12,12,12
 284 };
 285