libavutil/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 "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         .flags = PIX_FMT_PAL,
 219     },
 220     [PIX_FMT_BGR4] = {
 221         .name = "bgr4",
 222         .nb_channels  = 3,
 223         .log2_chroma_w= 0,
 224         .log2_chroma_h= 0,
 225         .comp = {
 226             {0,3,1,0,0},        /* B */
 227             {0,3,2,0,1},        /* G */
 228             {0,3,4,0,0},        /* R */
 229         },
 230         .flags = PIX_FMT_BITSTREAM,
 231     },
 232     [PIX_FMT_BGR4_BYTE] = {
 233         .name = "bgr4_byte",
 234         .nb_channels  = 3,
 235         .log2_chroma_w= 0,
 236         .log2_chroma_h= 0,
 237         .comp = {
 238             {0,0,1,3,0},        /* B */
 239             {0,0,1,1,1},        /* G */
 240             {0,0,1,0,0},        /* R */
 241         },
 242         .flags = PIX_FMT_PAL,
 243     },
 244     [PIX_FMT_RGB8] = {
 245         .name = "rgb8",
 246         .nb_channels  = 3,
 247         .log2_chroma_w= 0,
 248         .log2_chroma_h= 0,
 249         .comp = {
 250             {0,0,1,6,1},        /* R */
 251             {0,0,1,3,2},        /* G */
 252             {0,0,1,0,2},        /* B */
 253         },
 254         .flags = PIX_FMT_PAL,
 255     },
 256     [PIX_FMT_RGB4] = {
 257         .name = "rgb4",
 258         .nb_channels  = 3,
 259         .log2_chroma_w= 0,
 260         .log2_chroma_h= 0,
 261         .comp = {
 262             {0,3,1,0,0},       /* R */
 263             {0,3,2,0,1},       /* G */
 264             {0,3,4,0,0},       /* B */
 265         },
 266         .flags = PIX_FMT_BITSTREAM,
 267     },
 268     [PIX_FMT_RGB4_BYTE] = {
 269         .name = "rgb4_byte",
 270         .nb_channels  = 3,
 271         .log2_chroma_w= 0,
 272         .log2_chroma_h= 0,
 273         .comp = {
 274             {0,0,1,3,0},        /* R */
 275             {0,0,1,1,1},        /* G */
 276             {0,0,1,0,0},        /* B */
 277         },
 278         .flags = PIX_FMT_PAL,
 279     },
 280     [PIX_FMT_NV12] = {
 281         .name = "nv12",
 282         .nb_channels  = 3,
 283         .log2_chroma_w= 1,
 284         .log2_chroma_h= 1,
 285         .comp = {
 286             {0,0,1,0,7},        /* Y */
 287             {1,1,1,0,7},        /* U */
 288             {1,1,2,0,7},        /* V */
 289         },
 290     },
 291     [PIX_FMT_NV21] = {
 292         .name = "nv21",
 293         .nb_channels  = 3,
 294         .log2_chroma_w= 1,
 295         .log2_chroma_h= 1,
 296         .comp = {
 297             {0,0,1,0,7},        /* Y */
 298             {1,1,1,0,7},        /* V */
 299             {1,1,2,0,7},        /* U */
 300         },
 301     },
 302     [PIX_FMT_ARGB] = {
 303         .name = "argb",
 304         .nb_channels  = 4,
 305         .log2_chroma_w= 0,
 306         .log2_chroma_h= 0,
 307         .comp = {
 308             {0,3,1,0,7},        /* A */
 309             {0,3,2,0,7},        /* R */
 310             {0,3,3,0,7},        /* G */
 311             {0,3,4,0,7},        /* B */
 312         },
 313     },
 314     [PIX_FMT_RGBA] = {
 315         .name = "rgba",
 316         .nb_channels  = 4,
 317         .log2_chroma_w= 0,
 318         .log2_chroma_h= 0,
 319         .comp = {
 320             {0,3,1,0,7},        /* R */
 321             {0,3,2,0,7},        /* G */
 322             {0,3,3,0,7},        /* B */
 323             {0,3,4,0,7},        /* A */
 324         },
 325     },
 326     [PIX_FMT_ABGR] = {
 327         .name = "abgr",
 328         .nb_channels  = 4,
 329         .log2_chroma_w= 0,
 330         .log2_chroma_h= 0,
 331         .comp = {
 332             {0,3,1,0,7},        /* A */
 333             {0,3,2,0,7},        /* B */
 334             {0,3,3,0,7},        /* G */
 335             {0,3,4,0,7},        /* R */
 336         },
 337     },
 338     [PIX_FMT_BGRA] = {
 339         .name = "bgra",
 340         .nb_channels  = 4,
 341         .log2_chroma_w= 0,
 342         .log2_chroma_h= 0,
 343         .comp = {
 344             {0,3,1,0,7},        /* B */
 345             {0,3,2,0,7},        /* G */
 346             {0,3,3,0,7},        /* R */
 347             {0,3,4,0,7},        /* A */
 348         },
 349     },
 350     [PIX_FMT_GRAY16BE] = {
 351         .name = "gray16be",
 352         .nb_channels  = 1,
 353         .log2_chroma_w= 0,
 354         .log2_chroma_h= 0,
 355         .comp = {
 356             {0,1,1,0,15},       /* Y */
 357         },
 358         .flags = PIX_FMT_BE,
 359     },
 360     [PIX_FMT_GRAY16LE] = {
 361         .name = "gray16le",
 362         .nb_channels  = 1,
 363         .log2_chroma_w= 0,
 364         .log2_chroma_h= 0,
 365         .comp = {
 366             {0,1,1,0,15},       /* Y */
 367         },
 368     },
 369     [PIX_FMT_YUV440P] = {
 370         .name = "yuv440p",
 371         .nb_channels  = 3,
 372         .log2_chroma_w= 0,
 373         .log2_chroma_h= 1,
 374         .comp = {
 375             {0,0,1,0,7},        /* Y */
 376             {1,0,1,0,7},        /* U */
 377             {2,0,1,0,7},        /* V */
 378         },
 379     },
 380     [PIX_FMT_YUVJ440P] = {
 381         .name = "yuvj440p",
 382         .nb_channels  = 3,
 383         .log2_chroma_w= 0,
 384         .log2_chroma_h= 1,
 385         .comp = {
 386             {0,0,1,0,7},        /* Y */
 387             {1,0,1,0,7},        /* U */
 388             {2,0,1,0,7},        /* V */
 389         },
 390     },
 391     [PIX_FMT_YUVA420P] = {
 392         .name = "yuva420p",
 393         .nb_channels  = 4,
 394         .log2_chroma_w= 1,
 395         .log2_chroma_h= 1,
 396         .comp = {
 397             {0,0,1,0,7},        /* Y */
 398             {1,0,1,0,7},        /* U */
 399             {2,0,1,0,7},        /* V */
 400             {3,0,1,0,7},        /* A */
 401         },
 402     },
 403     [PIX_FMT_RGB48BE] = {
 404         .name = "rgb48be",
 405         .nb_channels  = 3,
 406         .log2_chroma_w= 0,
 407         .log2_chroma_h= 0,
 408         .comp = {
 409             {0,5,1,0,15},       /* R */
 410             {0,5,3,0,15},       /* G */
 411             {0,5,5,0,15},       /* B */
 412         },
 413         .flags = PIX_FMT_BE,
 414     },
 415     [PIX_FMT_RGB48LE] = {
 416         .name = "rgb48le",
 417         .nb_channels  = 3,
 418         .log2_chroma_w= 0,
 419         .log2_chroma_h= 0,
 420         .comp = {
 421             {0,5,1,0,15},       /* R */
 422             {0,5,3,0,15},       /* G */
 423             {0,5,5,0,15},       /* B */
 424         },
 425     },
 426     [PIX_FMT_RGB565BE] = {
 427         .name = "rgb565be",
 428         .nb_channels  = 3,
 429         .log2_chroma_w= 0,
 430         .log2_chroma_h= 0,
 431         .comp = {
 432             {0,1,0,3,4},        /* R */
 433             {0,1,1,5,5},        /* G */
 434             {0,1,1,0,4},        /* B */
 435         },
 436         .flags = PIX_FMT_BE,
 437     },
 438     [PIX_FMT_RGB565LE] = {
 439         .name = "rgb565le",
 440         .nb_channels  = 3,
 441         .log2_chroma_w= 0,
 442         .log2_chroma_h= 0,
 443         .comp = {
 444             {0,1,2,3,4},        /* R */
 445             {0,1,1,5,5},        /* G */
 446             {0,1,1,0,4},        /* B */
 447         },
 448     },
 449     [PIX_FMT_RGB555BE] = {
 450         .name = "rgb555be",
 451         .nb_channels  = 3,
 452         .log2_chroma_w= 0,
 453         .log2_chroma_h= 0,
 454         .comp = {
 455             {0,1,0,2,4},        /* R */
 456             {0,1,1,5,4},        /* G */
 457             {0,1,1,0,4},        /* B */
 458         },
 459         .flags = PIX_FMT_BE,
 460     },
 461     [PIX_FMT_RGB555LE] = {
 462         .name = "rgb555le",
 463         .nb_channels  = 3,
 464         .log2_chroma_w= 0,
 465         .log2_chroma_h= 0,
 466         .comp = {
 467             {0,1,2,2,4},        /* R */
 468             {0,1,1,5,4},        /* G */
 469             {0,1,1,0,4},        /* B */
 470         },
 471     },
 472     [PIX_FMT_BGR565BE] = {
 473         .name = "bgr565be",
 474         .nb_channels  = 3,
 475         .log2_chroma_w= 0,
 476         .log2_chroma_h= 0,
 477         .comp = {
 478             {0,1,0,3,4},        /* B */
 479             {0,1,1,5,5},        /* G */
 480             {0,1,1,0,4},        /* R */
 481         },
 482         .flags = PIX_FMT_BE,
 483     },
 484     [PIX_FMT_BGR565LE] = {
 485         .name = "bgr565le",
 486         .nb_channels  = 3,
 487         .log2_chroma_w= 0,
 488         .log2_chroma_h= 0,
 489         .comp = {
 490             {0,1,2,3,4},        /* B */
 491             {0,1,1,5,5},        /* G */
 492             {0,1,1,0,4},        /* R */
 493         },
 494     },
 495     [PIX_FMT_BGR555BE] = {
 496         .name = "bgr555be",
 497         .nb_channels  = 3,
 498         .log2_chroma_w= 0,
 499         .log2_chroma_h= 0,
 500         .comp = {
 501             {0,1,0,2,4},       /* B */
 502             {0,1,1,5,4},       /* G */
 503             {0,1,1,0,4},       /* R */
 504         },
 505         .flags = PIX_FMT_BE,
 506      },
 507     [PIX_FMT_BGR555LE] = {
 508         .name = "bgr555le",
 509         .nb_channels  = 3,
 510         .log2_chroma_w= 0,
 511         .log2_chroma_h= 0,
 512         .comp = {
 513             {0,1,2,2,4},        /* B */
 514             {0,1,1,5,4},        /* G */
 515             {0,1,1,0,4},        /* R */
 516         },
 517     },
 518     [PIX_FMT_YUV420P16LE] = {
 519         .name = "yuv420p16le",
 520         .nb_channels  = 3,
 521         .log2_chroma_w= 1,
 522         .log2_chroma_h= 1,
 523         .comp = {
 524             {0,1,1,0,15},        /* Y */
 525             {1,1,1,0,15},        /* U */
 526             {2,1,1,0,15},        /* V */
 527         },
 528     },
 529     [PIX_FMT_YUV420P16BE] = {
 530         .name = "yuv420p16be",
 531         .nb_channels  = 3,
 532         .log2_chroma_w= 1,
 533         .log2_chroma_h= 1,
 534         .comp = {
 535             {0,1,1,0,15},        /* Y */
 536             {1,1,1,0,15},        /* U */
 537             {2,1,1,0,15},        /* V */
 538         },
 539         .flags = PIX_FMT_BE,
 540     },
 541     [PIX_FMT_YUV422P16LE] = {
 542         .name = "yuv422p16le",
 543         .nb_channels  = 3,
 544         .log2_chroma_w= 1,
 545         .log2_chroma_h= 0,
 546         .comp = {
 547             {0,1,1,0,15},        /* Y */
 548             {1,1,1,0,15},        /* U */
 549             {2,1,1,0,15},        /* V */
 550         },
 551     },
 552     [PIX_FMT_YUV422P16BE] = {
 553         .name = "yuv422p16be",
 554         .nb_channels  = 3,
 555         .log2_chroma_w= 1,
 556         .log2_chroma_h= 0,
 557         .comp = {
 558             {0,1,1,0,15},        /* Y */
 559             {1,1,1,0,15},        /* U */
 560             {2,1,1,0,15},        /* V */
 561         },
 562         .flags = PIX_FMT_BE,
 563     },
 564     [PIX_FMT_YUV444P16LE] = {
 565         .name = "yuv444p16le",
 566         .nb_channels  = 3,
 567         .log2_chroma_w= 0,
 568         .log2_chroma_h= 0,
 569         .comp = {
 570             {0,1,1,0,15},        /* Y */
 571             {1,1,1,0,15},        /* U */
 572             {2,1,1,0,15},        /* V */
 573         },
 574     },
 575     [PIX_FMT_YUV444P16BE] = {
 576         .name = "yuv444p16be",
 577         .nb_channels  = 3,
 578         .log2_chroma_w= 0,
 579         .log2_chroma_h= 0,
 580         .comp = {
 581             {0,1,1,0,15},        /* Y */
 582             {1,1,1,0,15},        /* U */
 583             {2,1,1,0,15},        /* V */
 584         },
 585         .flags = PIX_FMT_BE,
 586     },
 587 };
 588
 589 int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
 590 {
 591     int c, bits = 0;
 592     int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
 593
 594     for (c = 0; c < pixdesc->nb_channels; c++) {
 595         int s = c==1 || c==2 ? 0 : log2_pixels;
 596         bits += (pixdesc->comp[c].depth_minus1+1) << s;
 597     }
 598
 599     return bits >> log2_pixels;
 600 }