libavcodec/pixdesc.c

   1 /*
   2  * pixel format descriptor
   3  * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #include "libavutil/pixfmt.h"
  23 #include "pixdesc.h"
  24
  25 const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
  26     [PIX_FMT_YUV420P] = {
  27         .name = "yuv420p",
  28         .nb_channels  = 3,
  29         .log2_chroma_w= 1,
  30         .log2_chroma_h= 1,
  31         .comp = {
  32             {0,0,1,0,7},        /* Y */
  33             {1,0,1,0,7},        /* U */
  34             {2,0,1,0,7},        /* V */
  35         },
  36     },
  37     [PIX_FMT_YUYV422] = {
  38         .name = "yuyv422",
  39         .nb_channels  = 3,
  40         .log2_chroma_w= 1,
  41         .log2_chroma_h= 0,
  42         .comp = {
  43             {0,1,1,0,7},        /* Y */
  44             {0,3,2,0,7},        /* U */
  45             {0,3,4,0,7},        /* V */
  46         },
  47     },
  48     [PIX_FMT_RGB24] = {
  49         .name = "rgb24",
  50         .nb_channels  = 3,
  51         .log2_chroma_w= 0,
  52         .log2_chroma_h= 0,
  53         .comp = {
  54             {0,2,1,0,7},        /* R */
  55             {0,2,2,0,7},        /* G */
  56             {0,2,3,0,7},        /* B */
  57         },
  58     },
  59     [PIX_FMT_BGR24] = {
  60         .name = "bgr24",
  61         .nb_channels  = 3,
  62         .log2_chroma_w= 0,
  63         .log2_chroma_h= 0,
  64         .comp = {
  65             {0,2,1,0,7},        /* B */
  66             {0,2,2,0,7},        /* G */
  67             {0,2,3,0,7},        /* R */
  68         },
  69     },
  70     [PIX_FMT_YUV422P] = {
  71         .name = "yuv422p",
  72         .nb_channels  = 3,
  73         .log2_chroma_w= 1,
  74         .log2_chroma_h= 0,
  75         .comp = {
  76             {0,0,1,0,7},        /* Y */
  77             {1,0,1,0,7},        /* U */
  78             {2,0,1,0,7},        /* V */
  79         },
  80     },
  81     [PIX_FMT_YUV444P] = {
  82         .name = "yuv444p",
  83         .nb_channels  = 3,
  84         .log2_chroma_w= 0,
  85         .log2_chroma_h= 0,
  86         .comp = {
  87             {0,0,1,0,7},        /* Y */
  88             {1,0,1,0,7},        /* U */
  89             {2,0,1,0,7},        /* V */
  90         },
  91     },
  92     [PIX_FMT_YUV410P] = {
  93         .name = "yuv410p",
  94         .nb_channels  = 3,
  95         .log2_chroma_w= 2,
  96         .log2_chroma_h= 2,
  97         .comp = {
  98             {0,0,1,0,7},        /* Y */
  99             {1,0,1,0,7},        /* U */
 100             {2,0,1,0,7},        /* V */
 101         },
 102     },
 103     [PIX_FMT_YUV411P] = {
 104         .name = "yuv411p",
 105         .nb_channels  = 3,
 106         .log2_chroma_w= 2,
 107         .log2_chroma_h= 0,
 108         .comp = {
 109             {0,0,1,0,7},        /* Y */
 110             {1,0,1,0,7},        /* U */
 111             {2,0,1,0,7},        /* V */
 112         },
 113     },
 114     [PIX_FMT_GRAY8] = {
 115         .name = "gray8",
 116         .nb_channels  = 1,
 117         .log2_chroma_w= 0,
 118         .log2_chroma_h= 0,
 119         .comp = {
 120             {0,0,1,0,7},        /* Y */
 121         },
 122     },
 123     [PIX_FMT_MONOWHITE] = {
 124         .name = "monowhite",
 125         .nb_channels  = 1,
 126         .log2_chroma_w= 0,
 127         .log2_chroma_h= 0,
 128         .comp = {
 129             {0,0,1,0,0},        /* Y */
 130         },
 131         .flags = PIX_FMT_BITSTREAM,
 132     },
 133     [PIX_FMT_MONOBLACK] = {
 134         .name = "monoblack",
 135         .nb_channels  = 1,
 136         .log2_chroma_w= 0,
 137         .log2_chroma_h= 0,
 138         .comp = {
 139             {0,0,1,7,0},        /* Y */
 140         },
 141         .flags = PIX_FMT_BITSTREAM,
 142     },
 143     [PIX_FMT_PAL8] = {
 144         .name = "pal8",
 145         .nb_channels  = 1,
 146         .log2_chroma_w= 0,
 147         .log2_chroma_h= 0,
 148         .comp = {
 149             {0,0,1,0,7},
 150         },
 151         .flags = PIX_FMT_PAL,
 152     },
 153     [PIX_FMT_YUVJ420P] = {
 154         .name = "yuvj420p",
 155         .nb_channels  = 3,
 156         .log2_chroma_w= 1,
 157         .log2_chroma_h= 1,
 158         .comp = {
 159             {0,0,1,0,7},        /* Y */
 160             {1,0,1,0,7},        /* U */
 161             {2,0,1,0,7},        /* V */
 162         },
 163     },
 164     [PIX_FMT_YUVJ422P] = {
 165         .name = "yuvj422p",
 166         .nb_channels  = 3,
 167         .log2_chroma_w= 1,
 168         .log2_chroma_h= 0,
 169         .comp = {
 170             {0,0,1,0,7},        /* Y */
 171             {1,0,1,0,7},        /* U */
 172             {2,0,1,0,7},        /* V */
 173         },
 174     },
 175     [PIX_FMT_YUVJ444P] = {
 176         .name = "yuvj444p",
 177         .nb_channels  = 3,
 178         .log2_chroma_w= 0,
 179         .log2_chroma_h= 0,
 180         .comp = {
 181             {0,0,1,0,7},        /* Y */
 182             {1,0,1,0,7},        /* U */
 183             {2,0,1,0,7},        /* V */
 184         },
 185     },
 186     [PIX_FMT_UYVY422] = {
 187         .name = "uyvy422",
 188         .nb_channels  = 3,
 189         .log2_chroma_w= 1,
 190         .log2_chroma_h= 0,
 191         .comp = {
 192             {0,1,2,0,7},        /* Y */
 193             {0,3,1,0,7},        /* U */
 194             {0,3,3,0,7},        /* V */
 195         },
 196     },
 197     [PIX_FMT_UYYVYY411] = {
 198         .name = "uyyvyy411",
 199         .nb_channels  = 3,
 200         .log2_chroma_w= 2,
 201         .log2_chroma_h= 0,
 202         .comp = {
 203             {0,3,2,0,7},        /* Y */
 204             {0,5,1,0,7},        /* U */
 205             {0,5,4,0,7},        /* V */
 206         },
 207     },
 208     [PIX_FMT_BGR8] = {
 209         .name = "bgr8",
 210         .nb_channels  = 3,
 211         .log2_chroma_w= 0,
 212         .log2_chroma_h= 0,
 213         .comp = {
 214             {0,0,1,6,1},        /* B */
 215             {0,0,1,3,2},        /* G */
 216             {0,0,1,0,2},        /* R */
 217         },
 218     },
 219     [PIX_FMT_BGR4] = {
 220         .name = "bgr4",
 221         .nb_channels  = 3,
 222         .log2_chroma_w= 0,
 223         .log2_chroma_h= 0,
 224         .comp = {
 225             {0,3,1,0,0},        /* B */
 226             {0,3,2,0,1},        /* G */
 227             {0,3,4,0,0},        /* R */
 228         },
 229         .flags = PIX_FMT_BITSTREAM,
 230     },
 231     [PIX_FMT_BGR4_BYTE] = {
 232         .name = "bgr4_byte",
 233         .nb_channels  = 3,
 234         .log2_chroma_w= 0,
 235         .log2_chroma_h= 0,
 236         .comp = {
 237             {0,0,1,3,0},        /* B */
 238             {0,0,1,1,1},        /* G */
 239             {0,0,1,0,0},        /* R */
 240         },
 241     },
 242     [PIX_FMT_RGB8] = {
 243         .name = "rgb8",
 244         .nb_channels  = 3,
 245         .log2_chroma_w= 0,
 246         .log2_chroma_h= 0,
 247         .comp = {
 248             {0,0,1,6,1},        /* R */
 249             {0,0,1,3,2},        /* G */
 250             {0,0,1,0,2},        /* B */
 251         },
 252     },
 253     [PIX_FMT_RGB4] = {
 254         .name = "rgb4",
 255         .nb_channels  = 3,
 256         .log2_chroma_w= 0,
 257         .log2_chroma_h= 0,
 258         .comp = {
 259             {0,3,1,0,0},       /* R */
 260             {0,3,2,0,1},       /* G */
 261             {0,3,4,0,0},       /* B */
 262         },
 263         .flags = PIX_FMT_BITSTREAM,
 264     },
 265     [PIX_FMT_RGB4_BYTE] = {
 266         .name = "rgb4_byte",
 267         .nb_channels  = 3,
 268         .log2_chroma_w= 0,
 269         .log2_chroma_h= 0,
 270         .comp = {
 271             {0,0,1,3,0},        /* R */
 272             {0,0,1,1,1},        /* G */
 273             {0,0,1,0,0},        /* B */
 274         },
 275     },
 276     [PIX_FMT_NV12] = {
 277         .name = "nv12",
 278         .nb_channels  = 3,
 279         .log2_chroma_w= 1,
 280         .log2_chroma_h= 1,
 281         .comp = {
 282             {0,0,1,0,7},        /* Y */
 283             {1,1,1,0,7},        /* U */
 284             {1,1,2,0,7},        /* V */
 285         },
 286     },
 287     [PIX_FMT_NV21] = {
 288         .name = "nv21",
 289         .nb_channels  = 3,
 290         .log2_chroma_w= 1,
 291         .log2_chroma_h= 1,
 292         .comp = {
 293             {0,0,1,0,7},        /* Y */
 294             {1,1,1,0,7},        /* V */
 295             {1,1,2,0,7},        /* U */
 296         },
 297     },
 298     [PIX_FMT_ARGB] = {
 299         .name = "argb",
 300         .nb_channels  = 4,
 301         .log2_chroma_w= 0,
 302         .log2_chroma_h= 0,
 303         .comp = {
 304             {0,3,1,0,7},        /* A */
 305             {0,3,2,0,7},        /* R */
 306             {0,3,3,0,7},        /* G */
 307             {0,3,4,0,7},        /* B */
 308         },
 309     },
 310     [PIX_FMT_RGBA] = {
 311         .name = "rgba",
 312         .nb_channels  = 4,
 313         .log2_chroma_w= 0,
 314         .log2_chroma_h= 0,
 315         .comp = {
 316             {0,3,1,0,7},        /* R */
 317             {0,3,2,0,7},        /* G */
 318             {0,3,3,0,7},        /* B */
 319             {0,3,4,0,7},        /* A */
 320         },
 321     },
 322     [PIX_FMT_ABGR] = {
 323         .name = "abgr",
 324         .nb_channels  = 4,
 325         .log2_chroma_w= 0,
 326         .log2_chroma_h= 0,
 327         .comp = {
 328             {0,3,1,0,7},        /* A */
 329             {0,3,2,0,7},        /* B */
 330             {0,3,3,0,7},        /* G */
 331             {0,3,4,0,7},        /* R */
 332         },
 333     },
 334     [PIX_FMT_BGRA] = {
 335         .name = "bgra",
 336         .nb_channels  = 4,
 337         .log2_chroma_w= 0,
 338         .log2_chroma_h= 0,
 339         .comp = {
 340             {0,3,1,0,7},        /* B */
 341             {0,3,2,0,7},        /* G */
 342             {0,3,3,0,7},        /* R */
 343             {0,3,4,0,7},        /* A */
 344         },
 345     },
 346     [PIX_FMT_GRAY16BE] = {
 347         .name = "gray16be",
 348         .nb_channels  = 1,
 349         .log2_chroma_w= 0,
 350         .log2_chroma_h= 0,
 351         .comp = {
 352             {0,1,1,0,15},       /* Y */
 353         },
 354         .flags = PIX_FMT_BE,
 355     },
 356     [PIX_FMT_GRAY16LE] = {
 357         .name = "gray16le",
 358         .nb_channels  = 1,
 359         .log2_chroma_w= 0,
 360         .log2_chroma_h= 0,
 361         .comp = {
 362             {0,1,1,0,15},       /* Y */
 363         },
 364     },
 365     [PIX_FMT_YUV440P] = {
 366         .name = "yuv440p",
 367         .nb_channels  = 3,
 368         .log2_chroma_w= 0,
 369         .log2_chroma_h= 1,
 370         .comp = {
 371             {0,0,1,0,7},        /* Y */
 372             {1,0,1,0,7},        /* U */
 373             {2,0,1,0,7},        /* V */
 374         },
 375     },
 376     [PIX_FMT_YUVJ440P] = {
 377         .name = "yuvj440p",
 378         .nb_channels  = 3,
 379         .log2_chroma_w= 0,
 380         .log2_chroma_h= 1,
 381         .comp = {
 382             {0,0,1,0,7},        /* Y */
 383             {1,0,1,0,7},        /* U */
 384             {2,0,1,0,7},        /* V */
 385         },
 386     },
 387     [PIX_FMT_YUVA420P] = {
 388         .name = "yuva420p",
 389         .nb_channels  = 4,
 390         .log2_chroma_w= 1,
 391         .log2_chroma_h= 1,
 392         .comp = {
 393             {0,0,1,0,7},        /* Y */
 394             {1,0,1,0,7},        /* U */
 395             {2,0,1,0,7},        /* V */
 396             {3,0,1,0,7},        /* A */
 397         },
 398     },
 399     [PIX_FMT_RGB48BE] = {
 400         .name = "rgb48be",
 401         .nb_channels  = 3,
 402         .log2_chroma_w= 0,
 403         .log2_chroma_h= 0,
 404         .comp = {
 405             {0,5,1,0,15},       /* R */
 406             {0,5,3,0,15},       /* G */
 407             {0,5,5,0,15},       /* B */
 408         },
 409         .flags = PIX_FMT_BE,
 410     },
 411     [PIX_FMT_RGB48LE] = {
 412         .name = "rgb48le",
 413         .nb_channels  = 3,
 414         .log2_chroma_w= 0,
 415         .log2_chroma_h= 0,
 416         .comp = {
 417             {0,5,1,0,15},       /* R */
 418             {0,5,3,0,15},       /* G */
 419             {0,5,5,0,15},       /* B */
 420         },
 421     },
 422     [PIX_FMT_RGB565BE] = {
 423         .name = "rgb565be",
 424         .nb_channels  = 3,
 425         .log2_chroma_w= 0,
 426         .log2_chroma_h= 0,
 427         .comp = {
 428             {0,1,0,3,4},        /* R */
 429             {0,1,1,5,5},        /* G */
 430             {0,1,1,0,4},        /* B */
 431         },
 432         .flags = PIX_FMT_BE,
 433     },
 434     [PIX_FMT_RGB565LE] = {
 435         .name = "rgb565le",
 436         .nb_channels  = 3,
 437         .log2_chroma_w= 0,
 438         .log2_chroma_h= 0,
 439         .comp = {
 440             {0,1,2,3,4},        /* R */
 441             {0,1,1,5,5},        /* G */
 442             {0,1,1,0,4},        /* B */
 443         },
 444     },
 445     [PIX_FMT_RGB555BE] = {
 446         .name = "rgb555be",
 447         .nb_channels  = 3,
 448         .log2_chroma_w= 0,
 449         .log2_chroma_h= 0,
 450         .comp = {
 451             {0,1,0,2,4},        /* R */
 452             {0,1,1,5,4},        /* G */
 453             {0,1,1,0,4},        /* B */
 454         },
 455         .flags = PIX_FMT_BE,
 456     },
 457     [PIX_FMT_RGB555LE] = {
 458         .name = "rgb555le",
 459         .nb_channels  = 3,
 460         .log2_chroma_w= 0,
 461         .log2_chroma_h= 0,
 462         .comp = {
 463             {0,1,2,2,4},        /* R */
 464             {0,1,1,5,4},        /* G */
 465             {0,1,1,0,4},        /* B */
 466         },
 467     },
 468     [PIX_FMT_BGR565BE] = {
 469         .name = "bgr565be",
 470         .nb_channels  = 3,
 471         .log2_chroma_w= 0,
 472         .log2_chroma_h= 0,
 473         .comp = {
 474             {0,1,0,3,4},        /* B */
 475             {0,1,1,5,5},        /* G */
 476             {0,1,1,0,4},        /* R */
 477         },
 478         .flags = PIX_FMT_BE,
 479     },
 480     [PIX_FMT_BGR565LE] = {
 481         .name = "bgr565le",
 482         .nb_channels  = 3,
 483         .log2_chroma_w= 0,
 484         .log2_chroma_h= 0,
 485         .comp = {
 486             {0,1,2,3,4},        /* B */
 487             {0,1,1,5,5},        /* G */
 488             {0,1,1,0,4},        /* R */
 489         },
 490     },
 491     [PIX_FMT_BGR555BE] = {
 492         .name = "bgr555be",
 493         .nb_channels  = 3,
 494         .log2_chroma_w= 0,
 495         .log2_chroma_h= 0,
 496         .comp = {
 497             {0,1,0,2,4},       /* B */
 498             {0,1,1,5,4},       /* G */
 499             {0,1,1,0,4},       /* R */
 500         },
 501         .flags = PIX_FMT_BE,
 502      },
 503     [PIX_FMT_BGR555LE] = {
 504         .name = "bgr555le",
 505         .nb_channels  = 3,
 506         .log2_chroma_w= 0,
 507         .log2_chroma_h= 0,
 508         .comp = {
 509             {0,1,2,2,4},        /* B */
 510             {0,1,1,5,4},        /* G */
 511             {0,1,1,0,4},        /* R */
 512         },
 513     },
 514     [PIX_FMT_YUV420PLE] = {
 515         .name = "yuv420ple",
 516         .nb_channels  = 3,
 517         .log2_chroma_w= 1,
 518         .log2_chroma_h= 1,
 519         .comp = {
 520             {0,1,1,0,15},        /* Y */
 521             {1,1,1,0,15},        /* U */
 522             {2,1,1,0,15},        /* V */
 523         },
 524     },
 525     [PIX_FMT_YUV420PBE] = {
 526         .name = "yuv420pbe",
 527         .nb_channels  = 3,
 528         .log2_chroma_w= 1,
 529         .log2_chroma_h= 1,
 530         .comp = {
 531             {0,1,1,0,15},        /* Y */
 532             {1,1,1,0,15},        /* U */
 533             {2,1,1,0,15},        /* V */
 534         },
 535         .flags = PIX_FMT_BE,
 536     },
 537     [PIX_FMT_YUV422PLE] = {
 538         .name = "yuv422ple",
 539         .nb_channels  = 3,
 540         .log2_chroma_w= 1,
 541         .log2_chroma_h= 0,
 542         .comp = {
 543             {0,1,1,0,15},        /* Y */
 544             {1,1,1,0,15},        /* U */
 545             {2,1,1,0,15},        /* V */
 546         },
 547     },
 548     [PIX_FMT_YUV422PBE] = {
 549         .name = "yuv422pbe",
 550         .nb_channels  = 3,
 551         .log2_chroma_w= 1,
 552         .log2_chroma_h= 0,
 553         .comp = {
 554             {0,1,1,0,15},        /* Y */
 555             {1,1,1,0,15},        /* U */
 556             {2,1,1,0,15},        /* V */
 557         },
 558         .flags = PIX_FMT_BE,
 559     },
 560     [PIX_FMT_YUV444PLE] = {
 561         .name = "yuv444ple",
 562         .nb_channels  = 3,
 563         .log2_chroma_w= 0,
 564         .log2_chroma_h= 0,
 565         .comp = {
 566             {0,1,1,0,15},        /* Y */
 567             {1,1,1,0,15},        /* U */
 568             {2,1,1,0,15},        /* V */
 569         },
 570     },
 571     [PIX_FMT_YUV444PBE] = {
 572         .name = "yuv444pbe",
 573         .nb_channels  = 3,
 574         .log2_chroma_w= 0,
 575         .log2_chroma_h= 0,
 576         .comp = {
 577             {0,1,1,0,15},        /* Y */
 578             {1,1,1,0,15},        /* U */
 579             {2,1,1,0,15},        /* V */
 580         },
 581         .flags = PIX_FMT_BE,
 582     },
 583 };
 584
 585 int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
 586 {
 587     int c, bits = 0;
 588     int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
 589
 590     for (c = 0; c < pixdesc->nb_channels; c++) {
 591         int s = c==1 || c==2 ? 0 : log2_pixels;
 592         bits += (pixdesc->comp[c].depth_minus1+1) << s;
 593     }
 594
 595     return bits >> log2_pixels;
 596 }