libavcodec/mpeg12data.c

   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 libavcodec/mpeg12data.c
  25  * MPEG1/2 tables.
  26  */
  27
  28 #include "mpeg12data.h"
  29
  30 const uint16_t ff_mpeg1_default_intra_matrix[64] = {
  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_frame_rate_tab[] = {
 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 float ff_mpeg1_aspect[16]={
 329     0.0000,
 330     1.0000,
 331     0.6735,
 332     0.7031,
 333
 334     0.7615,
 335     0.8055,
 336     0.8437,
 337     0.8935,
 338
 339     0.9157,
 340     0.9815,
 341     1.0255,
 342     1.0695,
 343
 344     1.0950,
 345     1.1575,
 346     1.2015,
 347 };
 348
 349 const AVRational ff_mpeg2_aspect[16]={
 350     {0,1},
 351     {1,1},
 352     {4,3},
 353     {16,9},
 354     {221,100},
 355     {0,1},
 356     {0,1},
 357     {0,1},
 358     {0,1},
 359     {0,1},
 360     {0,1},
 361     {0,1},
 362     {0,1},
 363     {0,1},
 364     {0,1},
 365     {0,1},
 366 };