| 1 | /* |
| 2 | * MPEG1/2 tables |
| 3 | * copyright (c) 2000,2001 Fabrice Bellard |
| 4 | * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
| 5 | * |
| 6 | * This file is part of FFmpeg. |
| 7 | * |
| 8 | * FFmpeg is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; either |
| 11 | * version 2.1 of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * FFmpeg is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with FFmpeg; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | /** |
| 24 | * @file |
| 25 | * MPEG1/2 tables. |
| 26 | */ |
| 27 | |
| 28 | #include "mpeg12data.h" |
| 29 | |
| 30 | const uint16_t ff_mpeg1_default_intra_matrix[256] = { |
| 31 | 8, 16, 19, 22, 26, 27, 29, 34, |
| 32 | 16, 16, 22, 24, 27, 29, 34, 37, |
| 33 | 19, 22, 26, 27, 29, 34, 34, 38, |
| 34 | 22, 22, 26, 27, 29, 34, 37, 40, |
| 35 | 22, 26, 27, 29, 32, 35, 40, 48, |
| 36 | 26, 27, 29, 32, 35, 40, 48, 58, |
| 37 | 26, 27, 29, 34, 38, 46, 56, 69, |
| 38 | 27, 29, 35, 38, 46, 56, 69, 83 |
| 39 | }; |
| 40 | |
| 41 | const uint16_t ff_mpeg1_default_non_intra_matrix[64] = { |
| 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 | 16, 16, 16, 16, 16, 16, 16, 16, |
| 47 | 16, 16, 16, 16, 16, 16, 16, 16, |
| 48 | 16, 16, 16, 16, 16, 16, 16, 16, |
| 49 | 16, 16, 16, 16, 16, 16, 16, 16, |
| 50 | }; |
| 51 | |
| 52 | const uint16_t ff_mpeg12_vlc_dc_lum_code[12] = { |
| 53 | 0x4, 0x0, 0x1, 0x5, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x1ff, |
| 54 | }; |
| 55 | const unsigned char ff_mpeg12_vlc_dc_lum_bits[12] = { |
| 56 | 3, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 9, |
| 57 | }; |
| 58 | |
| 59 | const uint16_t ff_mpeg12_vlc_dc_chroma_code[12] = { |
| 60 | 0x0, 0x1, 0x2, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x3fe, 0x3ff, |
| 61 | }; |
| 62 | const unsigned char ff_mpeg12_vlc_dc_chroma_bits[12] = { |
| 63 | 2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, |
| 64 | }; |
| 65 | |
| 66 | static const uint16_t mpeg1_vlc[113][2] = { |
| 67 | { 0x3, 2 }, { 0x4, 4 }, { 0x5, 5 }, { 0x6, 7 }, |
| 68 | { 0x26, 8 }, { 0x21, 8 }, { 0xa, 10 }, { 0x1d, 12 }, |
| 69 | { 0x18, 12 }, { 0x13, 12 }, { 0x10, 12 }, { 0x1a, 13 }, |
| 70 | { 0x19, 13 }, { 0x18, 13 }, { 0x17, 13 }, { 0x1f, 14 }, |
| 71 | { 0x1e, 14 }, { 0x1d, 14 }, { 0x1c, 14 }, { 0x1b, 14 }, |
| 72 | { 0x1a, 14 }, { 0x19, 14 }, { 0x18, 14 }, { 0x17, 14 }, |
| 73 | { 0x16, 14 }, { 0x15, 14 }, { 0x14, 14 }, { 0x13, 14 }, |
| 74 | { 0x12, 14 }, { 0x11, 14 }, { 0x10, 14 }, { 0x18, 15 }, |
| 75 | { 0x17, 15 }, { 0x16, 15 }, { 0x15, 15 }, { 0x14, 15 }, |
| 76 | { 0x13, 15 }, { 0x12, 15 }, { 0x11, 15 }, { 0x10, 15 }, |
| 77 | { 0x3, 3 }, { 0x6, 6 }, { 0x25, 8 }, { 0xc, 10 }, |
| 78 | { 0x1b, 12 }, { 0x16, 13 }, { 0x15, 13 }, { 0x1f, 15 }, |
| 79 | { 0x1e, 15 }, { 0x1d, 15 }, { 0x1c, 15 }, { 0x1b, 15 }, |
| 80 | { 0x1a, 15 }, { 0x19, 15 }, { 0x13, 16 }, { 0x12, 16 }, |
| 81 | { 0x11, 16 }, { 0x10, 16 }, { 0x5, 4 }, { 0x4, 7 }, |
| 82 | { 0xb, 10 }, { 0x14, 12 }, { 0x14, 13 }, { 0x7, 5 }, |
| 83 | { 0x24, 8 }, { 0x1c, 12 }, { 0x13, 13 }, { 0x6, 5 }, |
| 84 | { 0xf, 10 }, { 0x12, 12 }, { 0x7, 6 }, { 0x9, 10 }, |
| 85 | { 0x12, 13 }, { 0x5, 6 }, { 0x1e, 12 }, { 0x14, 16 }, |
| 86 | { 0x4, 6 }, { 0x15, 12 }, { 0x7, 7 }, { 0x11, 12 }, |
| 87 | { 0x5, 7 }, { 0x11, 13 }, { 0x27, 8 }, { 0x10, 13 }, |
| 88 | { 0x23, 8 }, { 0x1a, 16 }, { 0x22, 8 }, { 0x19, 16 }, |
| 89 | { 0x20, 8 }, { 0x18, 16 }, { 0xe, 10 }, { 0x17, 16 }, |
| 90 | { 0xd, 10 }, { 0x16, 16 }, { 0x8, 10 }, { 0x15, 16 }, |
| 91 | { 0x1f, 12 }, { 0x1a, 12 }, { 0x19, 12 }, { 0x17, 12 }, |
| 92 | { 0x16, 12 }, { 0x1f, 13 }, { 0x1e, 13 }, { 0x1d, 13 }, |
| 93 | { 0x1c, 13 }, { 0x1b, 13 }, { 0x1f, 16 }, { 0x1e, 16 }, |
| 94 | { 0x1d, 16 }, { 0x1c, 16 }, { 0x1b, 16 }, |
| 95 | { 0x1, 6 }, /* escape */ |
| 96 | { 0x2, 2 }, /* EOB */ |
| 97 | }; |
| 98 | |
| 99 | static const uint16_t mpeg2_vlc[113][2] = { |
| 100 | {0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5}, |
| 101 | {0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7}, |
| 102 | {0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8}, |
| 103 | {0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14}, |
| 104 | {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14}, |
| 105 | {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14}, |
| 106 | {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14}, |
| 107 | {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15}, |
| 108 | {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15}, |
| 109 | {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15}, |
| 110 | {0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8}, |
| 111 | {0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15}, |
| 112 | {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15}, |
| 113 | {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16}, |
| 114 | {0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7}, |
| 115 | {0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5}, |
| 116 | {0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6}, |
| 117 | {0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9}, |
| 118 | {0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16}, |
| 119 | {0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12}, |
| 120 | {0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13}, |
| 121 | {0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16}, |
| 122 | {0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16}, |
| 123 | {0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16}, |
| 124 | {0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12}, |
| 125 | {0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13}, |
| 126 | {0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16}, |
| 127 | {0x1d,16}, {0x1c,16}, {0x1b,16}, |
| 128 | {0x01,6}, /* escape */ |
| 129 | {0x06,4}, /* EOB */ |
| 130 | }; |
| 131 | |
| 132 | static const int8_t mpeg1_level[111] = { |
| 133 | 1, 2, 3, 4, 5, 6, 7, 8, |
| 134 | 9, 10, 11, 12, 13, 14, 15, 16, |
| 135 | 17, 18, 19, 20, 21, 22, 23, 24, |
| 136 | 25, 26, 27, 28, 29, 30, 31, 32, |
| 137 | 33, 34, 35, 36, 37, 38, 39, 40, |
| 138 | 1, 2, 3, 4, 5, 6, 7, 8, |
| 139 | 9, 10, 11, 12, 13, 14, 15, 16, |
| 140 | 17, 18, 1, 2, 3, 4, 5, 1, |
| 141 | 2, 3, 4, 1, 2, 3, 1, 2, |
| 142 | 3, 1, 2, 3, 1, 2, 1, 2, |
| 143 | 1, 2, 1, 2, 1, 2, 1, 2, |
| 144 | 1, 2, 1, 2, 1, 2, 1, 2, |
| 145 | 1, 1, 1, 1, 1, 1, 1, 1, |
| 146 | 1, 1, 1, 1, 1, 1, 1, |
| 147 | }; |
| 148 | |
| 149 | static const int8_t mpeg1_run[111] = { |
| 150 | 0, 0, 0, 0, 0, 0, 0, 0, |
| 151 | 0, 0, 0, 0, 0, 0, 0, 0, |
| 152 | 0, 0, 0, 0, 0, 0, 0, 0, |
| 153 | 0, 0, 0, 0, 0, 0, 0, 0, |
| 154 | 0, 0, 0, 0, 0, 0, 0, 0, |
| 155 | 1, 1, 1, 1, 1, 1, 1, 1, |
| 156 | 1, 1, 1, 1, 1, 1, 1, 1, |
| 157 | 1, 1, 2, 2, 2, 2, 2, 3, |
| 158 | 3, 3, 3, 4, 4, 4, 5, 5, |
| 159 | 5, 6, 6, 6, 7, 7, 8, 8, |
| 160 | 9, 9, 10, 10, 11, 11, 12, 12, |
| 161 | 13, 13, 14, 14, 15, 15, 16, 16, |
| 162 | 17, 18, 19, 20, 21, 22, 23, 24, |
| 163 | 25, 26, 27, 28, 29, 30, 31, |
| 164 | }; |
| 165 | |
| 166 | RLTable ff_rl_mpeg1 = { |
| 167 | 111, |
| 168 | 111, |
| 169 | mpeg1_vlc, |
| 170 | mpeg1_run, |
| 171 | mpeg1_level, |
| 172 | }; |
| 173 | |
| 174 | RLTable ff_rl_mpeg2 = { |
| 175 | 111, |
| 176 | 111, |
| 177 | mpeg2_vlc, |
| 178 | mpeg1_run, |
| 179 | mpeg1_level, |
| 180 | }; |
| 181 | |
| 182 | const uint8_t ff_mpeg12_mbAddrIncrTable[36][2] = { |
| 183 | {0x1, 1}, |
| 184 | {0x3, 3}, |
| 185 | {0x2, 3}, |
| 186 | {0x3, 4}, |
| 187 | {0x2, 4}, |
| 188 | {0x3, 5}, |
| 189 | {0x2, 5}, |
| 190 | {0x7, 7}, |
| 191 | {0x6, 7}, |
| 192 | {0xb, 8}, |
| 193 | {0xa, 8}, |
| 194 | {0x9, 8}, |
| 195 | {0x8, 8}, |
| 196 | {0x7, 8}, |
| 197 | {0x6, 8}, |
| 198 | {0x17, 10}, |
| 199 | {0x16, 10}, |
| 200 | {0x15, 10}, |
| 201 | {0x14, 10}, |
| 202 | {0x13, 10}, |
| 203 | {0x12, 10}, |
| 204 | {0x23, 11}, |
| 205 | {0x22, 11}, |
| 206 | {0x21, 11}, |
| 207 | {0x20, 11}, |
| 208 | {0x1f, 11}, |
| 209 | {0x1e, 11}, |
| 210 | {0x1d, 11}, |
| 211 | {0x1c, 11}, |
| 212 | {0x1b, 11}, |
| 213 | {0x1a, 11}, |
| 214 | {0x19, 11}, |
| 215 | {0x18, 11}, |
| 216 | {0x8, 11}, /* escape */ |
| 217 | {0xf, 11}, /* stuffing */ |
| 218 | {0x0, 8}, /* end (and 15 more 0 bits should follow) */ |
| 219 | }; |
| 220 | |
| 221 | const uint8_t ff_mpeg12_mbPatTable[64][2] = { |
| 222 | {0x1, 9}, |
| 223 | {0xb, 5}, |
| 224 | {0x9, 5}, |
| 225 | {0xd, 6}, |
| 226 | {0xd, 4}, |
| 227 | {0x17, 7}, |
| 228 | {0x13, 7}, |
| 229 | {0x1f, 8}, |
| 230 | {0xc, 4}, |
| 231 | {0x16, 7}, |
| 232 | {0x12, 7}, |
| 233 | {0x1e, 8}, |
| 234 | {0x13, 5}, |
| 235 | {0x1b, 8}, |
| 236 | {0x17, 8}, |
| 237 | {0x13, 8}, |
| 238 | {0xb, 4}, |
| 239 | {0x15, 7}, |
| 240 | {0x11, 7}, |
| 241 | {0x1d, 8}, |
| 242 | {0x11, 5}, |
| 243 | {0x19, 8}, |
| 244 | {0x15, 8}, |
| 245 | {0x11, 8}, |
| 246 | {0xf, 6}, |
| 247 | {0xf, 8}, |
| 248 | {0xd, 8}, |
| 249 | {0x3, 9}, |
| 250 | {0xf, 5}, |
| 251 | {0xb, 8}, |
| 252 | {0x7, 8}, |
| 253 | {0x7, 9}, |
| 254 | {0xa, 4}, |
| 255 | {0x14, 7}, |
| 256 | {0x10, 7}, |
| 257 | {0x1c, 8}, |
| 258 | {0xe, 6}, |
| 259 | {0xe, 8}, |
| 260 | {0xc, 8}, |
| 261 | {0x2, 9}, |
| 262 | {0x10, 5}, |
| 263 | {0x18, 8}, |
| 264 | {0x14, 8}, |
| 265 | {0x10, 8}, |
| 266 | {0xe, 5}, |
| 267 | {0xa, 8}, |
| 268 | {0x6, 8}, |
| 269 | {0x6, 9}, |
| 270 | {0x12, 5}, |
| 271 | {0x1a, 8}, |
| 272 | {0x16, 8}, |
| 273 | {0x12, 8}, |
| 274 | {0xd, 5}, |
| 275 | {0x9, 8}, |
| 276 | {0x5, 8}, |
| 277 | {0x5, 9}, |
| 278 | {0xc, 5}, |
| 279 | {0x8, 8}, |
| 280 | {0x4, 8}, |
| 281 | {0x4, 9}, |
| 282 | {0x7, 3}, |
| 283 | {0xa, 5}, |
| 284 | {0x8, 5}, |
| 285 | {0xc, 6} |
| 286 | }; |
| 287 | |
| 288 | const uint8_t ff_mpeg12_mbMotionVectorTable[17][2] = { |
| 289 | { 0x1, 1 }, |
| 290 | { 0x1, 2 }, |
| 291 | { 0x1, 3 }, |
| 292 | { 0x1, 4 }, |
| 293 | { 0x3, 6 }, |
| 294 | { 0x5, 7 }, |
| 295 | { 0x4, 7 }, |
| 296 | { 0x3, 7 }, |
| 297 | { 0xb, 9 }, |
| 298 | { 0xa, 9 }, |
| 299 | { 0x9, 9 }, |
| 300 | { 0x11, 10 }, |
| 301 | { 0x10, 10 }, |
| 302 | { 0xf, 10 }, |
| 303 | { 0xe, 10 }, |
| 304 | { 0xd, 10 }, |
| 305 | { 0xc, 10 }, |
| 306 | }; |
| 307 | |
| 308 | const AVRational ff_mpeg12_frame_rate_tab[16] = { |
| 309 | { 0, 0}, |
| 310 | {24000, 1001}, |
| 311 | { 24, 1}, |
| 312 | { 25, 1}, |
| 313 | {30000, 1001}, |
| 314 | { 30, 1}, |
| 315 | { 50, 1}, |
| 316 | {60000, 1001}, |
| 317 | { 60, 1}, |
| 318 | // Xing's 15fps: (9) |
| 319 | { 15, 1}, |
| 320 | // libmpeg3's "Unofficial economy rates": (10-13) |
| 321 | { 5, 1}, |
| 322 | { 10, 1}, |
| 323 | { 12, 1}, |
| 324 | { 15, 1}, |
| 325 | { 0, 0}, |
| 326 | }; |
| 327 | |
| 328 | const AVRational ff_mpeg2_frame_rate_tab[] = { |
| 329 | { 1, 1}, |
| 330 | { 2, 1}, |
| 331 | { 3, 1}, |
| 332 | { 4, 1}, |
| 333 | { 5, 1}, |
| 334 | { 6, 1}, |
| 335 | { 8, 1}, |
| 336 | { 9, 1}, |
| 337 | { 10, 1}, |
| 338 | { 12, 1}, |
| 339 | { 15, 1}, |
| 340 | { 16, 1}, |
| 341 | { 18, 1}, |
| 342 | { 20, 1}, |
| 343 | { 24, 1}, |
| 344 | { 25, 1}, |
| 345 | { 30, 1}, |
| 346 | { 32, 1}, |
| 347 | { 36, 1}, |
| 348 | { 40, 1}, |
| 349 | { 45, 1}, |
| 350 | { 48, 1}, |
| 351 | { 50, 1}, |
| 352 | { 60, 1}, |
| 353 | { 72, 1}, |
| 354 | { 75, 1}, |
| 355 | { 80, 1}, |
| 356 | { 90, 1}, |
| 357 | { 96, 1}, |
| 358 | { 100, 1}, |
| 359 | { 120, 1}, |
| 360 | { 150, 1}, |
| 361 | { 180, 1}, |
| 362 | { 200, 1}, |
| 363 | { 240, 1}, |
| 364 | { 750, 1001}, |
| 365 | { 800, 1001}, |
| 366 | { 960, 1001}, |
| 367 | { 1000, 1001}, |
| 368 | { 1200, 1001}, |
| 369 | { 1250, 1001}, |
| 370 | { 1500, 1001}, |
| 371 | { 1600, 1001}, |
| 372 | { 1875, 1001}, |
| 373 | { 2000, 1001}, |
| 374 | { 2400, 1001}, |
| 375 | { 2500, 1001}, |
| 376 | { 3000, 1001}, |
| 377 | { 3750, 1001}, |
| 378 | { 4000, 1001}, |
| 379 | { 4800, 1001}, |
| 380 | { 5000, 1001}, |
| 381 | { 6000, 1001}, |
| 382 | { 7500, 1001}, |
| 383 | { 8000, 1001}, |
| 384 | { 10000, 1001}, |
| 385 | { 12000, 1001}, |
| 386 | { 15000, 1001}, |
| 387 | { 20000, 1001}, |
| 388 | { 24000, 1001}, |
| 389 | { 30000, 1001}, |
| 390 | { 60000, 1001}, |
| 391 | { 0, 0}, |
| 392 | }; |
| 393 | |
| 394 | const float ff_mpeg1_aspect[16]={ |
| 395 | 0.0000, |
| 396 | 1.0000, |
| 397 | 0.6735, |
| 398 | 0.7031, |
| 399 | |
| 400 | 0.7615, |
| 401 | 0.8055, |
| 402 | 0.8437, |
| 403 | 0.8935, |
| 404 | |
| 405 | 0.9157, |
| 406 | 0.9815, |
| 407 | 1.0255, |
| 408 | 1.0695, |
| 409 | |
| 410 | 1.0950, |
| 411 | 1.1575, |
| 412 | 1.2015, |
| 413 | }; |
| 414 | |
| 415 | const AVRational ff_mpeg2_aspect[16]={ |
| 416 | {0,1}, |
| 417 | {1,1}, |
| 418 | {4,3}, |
| 419 | {16,9}, |
| 420 | {221,100}, |
| 421 | {0,1}, |
| 422 | {0,1}, |
| 423 | {0,1}, |
| 424 | {0,1}, |
| 425 | {0,1}, |
| 426 | {0,1}, |
| 427 | {0,1}, |
| 428 | {0,1}, |
| 429 | {0,1}, |
| 430 | {0,1}, |
| 431 | {0,1}, |
| 432 | }; |