git.sesse.net Git - ffmpeg/blob - 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_components= 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_components= 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_components= 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_components= 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_components= 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_components= 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_components= 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_components= 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 = "gray",
 116         .nb_components= 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 = "monow",
 125         .nb_components= 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 = "monob",
 135         .nb_components= 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_components= 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_components= 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_components= 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_components= 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_XVMC_MPEG2_MC] = {
 187         .name = "xvmcmc",
 188         .flags = PIX_FMT_HWACCEL,
 189     },
 190     [PIX_FMT_XVMC_MPEG2_IDCT] = {
 191         .name = "xvmcidct",
 192         .flags = PIX_FMT_HWACCEL,
 193     },
 194     [PIX_FMT_UYVY422] = {
 195         .name = "uyvy422",
 196         .nb_components= 3,
 197         .log2_chroma_w= 1,
 198         .log2_chroma_h= 0,
 199         .comp = {
 200             {0,1,2,0,7},        /* Y */
 201             {0,3,1,0,7},        /* U */
 202             {0,3,3,0,7},        /* V */
 203         },
 204     },
 205     [PIX_FMT_UYYVYY411] = {
 206         .name = "uyyvyy411",
 207         .nb_components= 3,
 208         .log2_chroma_w= 2,
 209         .log2_chroma_h= 0,
 210         .comp = {
 211             {0,3,2,0,7},        /* Y */
 212             {0,5,1,0,7},        /* U */
 213             {0,5,4,0,7},        /* V */
 214         },
 215     },
 216     [PIX_FMT_BGR8] = {
 217         .name = "bgr8",
 218         .nb_components= 3,
 219         .log2_chroma_w= 0,
 220         .log2_chroma_h= 0,
 221         .comp = {
 222             {0,0,1,6,1},        /* B */
 223             {0,0,1,3,2},        /* G */
 224             {0,0,1,0,2},        /* R */
 225         },
 226         .flags = PIX_FMT_PAL,
 227     },
 228     [PIX_FMT_BGR4] = {
 229         .name = "bgr4",
 230         .nb_components= 3,
 231         .log2_chroma_w= 0,
 232         .log2_chroma_h= 0,
 233         .comp = {
 234             {0,3,1,0,0},        /* B */
 235             {0,3,2,0,1},        /* G */
 236             {0,3,4,0,0},        /* R */
 237         },
 238         .flags = PIX_FMT_BITSTREAM,
 239     },
 240     [PIX_FMT_BGR4_BYTE] = {
 241         .name = "bgr4_byte",
 242         .nb_components= 3,
 243         .log2_chroma_w= 0,
 244         .log2_chroma_h= 0,
 245         .comp = {
 246             {0,0,1,3,0},        /* B */
 247             {0,0,1,1,1},        /* G */
 248             {0,0,1,0,0},        /* R */
 249         },
 250         .flags = PIX_FMT_PAL,
 251     },
 252     [PIX_FMT_RGB8] = {
 253         .name = "rgb8",
 254         .nb_components= 3,
 255         .log2_chroma_w= 0,
 256         .log2_chroma_h= 0,
 257         .comp = {
 258             {0,0,1,6,1},        /* R */
 259             {0,0,1,3,2},        /* G */
 260             {0,0,1,0,2},        /* B */
 261         },
 262         .flags = PIX_FMT_PAL,
 263     },
 264     [PIX_FMT_RGB4] = {
 265         .name = "rgb4",
 266         .nb_components= 3,
 267         .log2_chroma_w= 0,
 268         .log2_chroma_h= 0,
 269         .comp = {
 270             {0,3,1,0,0},       /* R */
 271             {0,3,2,0,1},       /* G */
 272             {0,3,4,0,0},       /* B */
 273         },
 274         .flags = PIX_FMT_BITSTREAM,
 275     },
 276     [PIX_FMT_RGB4_BYTE] = {
 277         .name = "rgb4_byte",
 278         .nb_components= 3,
 279         .log2_chroma_w= 0,
 280         .log2_chroma_h= 0,
 281         .comp = {
 282             {0,0,1,3,0},        /* R */
 283             {0,0,1,1,1},        /* G */
 284             {0,0,1,0,0},        /* B */
 285         },
 286         .flags = PIX_FMT_PAL,
 287     },
 288     [PIX_FMT_NV12] = {
 289         .name = "nv12",
 290         .nb_components= 3,
 291         .log2_chroma_w= 1,
 292         .log2_chroma_h= 1,
 293         .comp = {
 294             {0,0,1,0,7},        /* Y */
 295             {1,1,1,0,7},        /* U */
 296             {1,1,2,0,7},        /* V */
 297         },
 298     },
 299     [PIX_FMT_NV21] = {
 300         .name = "nv21",
 301         .nb_components= 3,
 302         .log2_chroma_w= 1,
 303         .log2_chroma_h= 1,
 304         .comp = {
 305             {0,0,1,0,7},        /* Y */
 306             {1,1,1,0,7},        /* V */
 307             {1,1,2,0,7},        /* U */
 308         },
 309     },
 310     [PIX_FMT_ARGB] = {
 311         .name = "argb",
 312         .nb_components= 4,
 313         .log2_chroma_w= 0,
 314         .log2_chroma_h= 0,
 315         .comp = {
 316             {0,3,1,0,7},        /* A */
 317             {0,3,2,0,7},        /* R */
 318             {0,3,3,0,7},        /* G */
 319             {0,3,4,0,7},        /* B */
 320         },
 321     },
 322     [PIX_FMT_RGBA] = {
 323         .name = "rgba",
 324         .nb_components= 4,
 325         .log2_chroma_w= 0,
 326         .log2_chroma_h= 0,
 327         .comp = {
 328             {0,3,1,0,7},        /* R */
 329             {0,3,2,0,7},        /* G */
 330             {0,3,3,0,7},        /* B */
 331             {0,3,4,0,7},        /* A */
 332         },
 333     },
 334     [PIX_FMT_ABGR] = {
 335         .name = "abgr",
 336         .nb_components= 4,
 337         .log2_chroma_w= 0,
 338         .log2_chroma_h= 0,
 339         .comp = {
 340             {0,3,1,0,7},        /* A */
 341             {0,3,2,0,7},        /* B */
 342             {0,3,3,0,7},        /* G */
 343             {0,3,4,0,7},        /* R */
 344         },
 345     },
 346     [PIX_FMT_BGRA] = {
 347         .name = "bgra",
 348         .nb_components= 4,
 349         .log2_chroma_w= 0,
 350         .log2_chroma_h= 0,
 351         .comp = {
 352             {0,3,1,0,7},        /* B */
 353             {0,3,2,0,7},        /* G */
 354             {0,3,3,0,7},        /* R */
 355             {0,3,4,0,7},        /* A */
 356         },
 357     },
 358     [PIX_FMT_GRAY16BE] = {
 359         .name = "gray16be",
 360         .nb_components= 1,
 361         .log2_chroma_w= 0,
 362         .log2_chroma_h= 0,
 363         .comp = {
 364             {0,1,1,0,15},       /* Y */
 365         },
 366         .flags = PIX_FMT_BE,
 367     },
 368     [PIX_FMT_GRAY16LE] = {
 369         .name = "gray16le",
 370         .nb_components= 1,
 371         .log2_chroma_w= 0,
 372         .log2_chroma_h= 0,
 373         .comp = {
 374             {0,1,1,0,15},       /* Y */
 375         },
 376     },
 377     [PIX_FMT_YUV440P] = {
 378         .name = "yuv440p",
 379         .nb_components= 3,
 380         .log2_chroma_w= 0,
 381         .log2_chroma_h= 1,
 382         .comp = {
 383             {0,0,1,0,7},        /* Y */
 384             {1,0,1,0,7},        /* U */
 385             {2,0,1,0,7},        /* V */
 386         },
 387     },
 388     [PIX_FMT_YUVJ440P] = {
 389         .name = "yuvj440p",
 390         .nb_components= 3,
 391         .log2_chroma_w= 0,
 392         .log2_chroma_h= 1,
 393         .comp = {
 394             {0,0,1,0,7},        /* Y */
 395             {1,0,1,0,7},        /* U */
 396             {2,0,1,0,7},        /* V */
 397         },
 398     },
 399     [PIX_FMT_YUVA420P] = {
 400         .name = "yuva420p",
 401         .nb_components= 4,
 402         .log2_chroma_w= 1,
 403         .log2_chroma_h= 1,
 404         .comp = {
 405             {0,0,1,0,7},        /* Y */
 406             {1,0,1,0,7},        /* U */
 407             {2,0,1,0,7},        /* V */
 408             {3,0,1,0,7},        /* A */
 409         },
 410     },
 411     [PIX_FMT_VDPAU_H264] = {
 412         .name = "vdpau_h264",
 413         .log2_chroma_w = 1,
 414         .log2_chroma_h = 1,
 415         .flags = PIX_FMT_HWACCEL,
 416     },
 417     [PIX_FMT_VDPAU_MPEG1] = {
 418         .name = "vdpau_mpeg1",
 419         .log2_chroma_w = 1,
 420         .log2_chroma_h = 1,
 421         .flags = PIX_FMT_HWACCEL,
 422     },
 423     [PIX_FMT_VDPAU_MPEG2] = {
 424         .name = "vdpau_mpeg2",
 425         .log2_chroma_w = 1,
 426         .log2_chroma_h = 1,
 427         .flags = PIX_FMT_HWACCEL,
 428     },
 429     [PIX_FMT_VDPAU_WMV3] = {
 430         .name = "vdpau_wmv3",
 431         .log2_chroma_w = 1,
 432         .log2_chroma_h = 1,
 433         .flags = PIX_FMT_HWACCEL,
 434     },
 435     [PIX_FMT_VDPAU_VC1] = {
 436         .name = "vdpau_vc1",
 437         .log2_chroma_w = 1,
 438         .log2_chroma_h = 1,
 439         .flags = PIX_FMT_HWACCEL,
 440     },
 441     [PIX_FMT_VDPAU_MPEG4] = {
 442         .name = "vdpau_mpeg4",
 443         .log2_chroma_w = 1,
 444         .log2_chroma_h = 1,
 445         .flags = PIX_FMT_HWACCEL,
 446     },
 447     [PIX_FMT_RGB48BE] = {
 448         .name = "rgb48be",
 449         .nb_components= 3,
 450         .log2_chroma_w= 0,
 451         .log2_chroma_h= 0,
 452         .comp = {
 453             {0,5,1,0,15},       /* R */
 454             {0,5,3,0,15},       /* G */
 455             {0,5,5,0,15},       /* B */
 456         },
 457         .flags = PIX_FMT_BE,
 458     },
 459     [PIX_FMT_RGB48LE] = {
 460         .name = "rgb48le",
 461         .nb_components= 3,
 462         .log2_chroma_w= 0,
 463         .log2_chroma_h= 0,
 464         .comp = {
 465             {0,5,1,0,15},       /* R */
 466             {0,5,3,0,15},       /* G */
 467             {0,5,5,0,15},       /* B */
 468         },
 469     },
 470     [PIX_FMT_RGB565BE] = {
 471         .name = "rgb565be",
 472         .nb_components= 3,
 473         .log2_chroma_w= 0,
 474         .log2_chroma_h= 0,
 475         .comp = {
 476             {0,1,0,3,4},        /* R */
 477             {0,1,1,5,5},        /* G */
 478             {0,1,1,0,4},        /* B */
 479         },
 480         .flags = PIX_FMT_BE,
 481     },
 482     [PIX_FMT_RGB565LE] = {
 483         .name = "rgb565le",
 484         .nb_components= 3,
 485         .log2_chroma_w= 0,
 486         .log2_chroma_h= 0,
 487         .comp = {
 488             {0,1,2,3,4},        /* R */
 489             {0,1,1,5,5},        /* G */
 490             {0,1,1,0,4},        /* B */
 491         },
 492     },
 493     [PIX_FMT_RGB555BE] = {
 494         .name = "rgb555be",
 495         .nb_components= 3,
 496         .log2_chroma_w= 0,
 497         .log2_chroma_h= 0,
 498         .comp = {
 499             {0,1,0,2,4},        /* R */
 500             {0,1,1,5,4},        /* G */
 501             {0,1,1,0,4},        /* B */
 502         },
 503         .flags = PIX_FMT_BE,
 504     },
 505     [PIX_FMT_RGB555LE] = {
 506         .name = "rgb555le",
 507         .nb_components= 3,
 508         .log2_chroma_w= 0,
 509         .log2_chroma_h= 0,
 510         .comp = {
 511             {0,1,2,2,4},        /* R */
 512             {0,1,1,5,4},        /* G */
 513             {0,1,1,0,4},        /* B */
 514         },
 515     },
 516     [PIX_FMT_BGR565BE] = {
 517         .name = "bgr565be",
 518         .nb_components= 3,
 519         .log2_chroma_w= 0,
 520         .log2_chroma_h= 0,
 521         .comp = {
 522             {0,1,0,3,4},        /* B */
 523             {0,1,1,5,5},        /* G */
 524             {0,1,1,0,4},        /* R */
 525         },
 526         .flags = PIX_FMT_BE,
 527     },
 528     [PIX_FMT_BGR565LE] = {
 529         .name = "bgr565le",
 530         .nb_components= 3,
 531         .log2_chroma_w= 0,
 532         .log2_chroma_h= 0,
 533         .comp = {
 534             {0,1,2,3,4},        /* B */
 535             {0,1,1,5,5},        /* G */
 536             {0,1,1,0,4},        /* R */
 537         },
 538     },
 539     [PIX_FMT_BGR555BE] = {
 540         .name = "bgr555be",
 541         .nb_components= 3,
 542         .log2_chroma_w= 0,
 543         .log2_chroma_h= 0,
 544         .comp = {
 545             {0,1,0,2,4},       /* B */
 546             {0,1,1,5,4},       /* G */
 547             {0,1,1,0,4},       /* R */
 548         },
 549         .flags = PIX_FMT_BE,
 550      },
 551     [PIX_FMT_BGR555LE] = {
 552         .name = "bgr555le",
 553         .nb_components= 3,
 554         .log2_chroma_w= 0,
 555         .log2_chroma_h= 0,
 556         .comp = {
 557             {0,1,2,2,4},        /* B */
 558             {0,1,1,5,4},        /* G */
 559             {0,1,1,0,4},        /* R */
 560         },
 561     },
 562     [PIX_FMT_VAAPI_MOCO] = {
 563         .name = "vaapi_moco",
 564         .log2_chroma_w = 1,
 565         .log2_chroma_h = 1,
 566         .flags = PIX_FMT_HWACCEL,
 567     },
 568     [PIX_FMT_VAAPI_IDCT] = {
 569         .name = "vaapi_idct",
 570         .log2_chroma_w = 1,
 571         .log2_chroma_h = 1,
 572         .flags = PIX_FMT_HWACCEL,
 573     },
 574     [PIX_FMT_VAAPI_VLD] = {
 575         .name = "vaapi_vld",
 576         .log2_chroma_w = 1,
 577         .log2_chroma_h = 1,
 578         .flags = PIX_FMT_HWACCEL,
 579     },
 580     [PIX_FMT_YUV420P16LE] = {
 581         .name = "yuv420p16le",
 582         .nb_components= 3,
 583         .log2_chroma_w= 1,
 584         .log2_chroma_h= 1,
 585         .comp = {
 586             {0,1,1,0,15},        /* Y */
 587             {1,1,1,0,15},        /* U */
 588             {2,1,1,0,15},        /* V */
 589         },
 590     },
 591     [PIX_FMT_YUV420P16BE] = {
 592         .name = "yuv420p16be",
 593         .nb_components= 3,
 594         .log2_chroma_w= 1,
 595         .log2_chroma_h= 1,
 596         .comp = {
 597             {0,1,1,0,15},        /* Y */
 598             {1,1,1,0,15},        /* U */
 599             {2,1,1,0,15},        /* V */
 600         },
 601         .flags = PIX_FMT_BE,
 602     },
 603     [PIX_FMT_YUV422P16LE] = {
 604         .name = "yuv422p16le",
 605         .nb_components= 3,
 606         .log2_chroma_w= 1,
 607         .log2_chroma_h= 0,
 608         .comp = {
 609             {0,1,1,0,15},        /* Y */
 610             {1,1,1,0,15},        /* U */
 611             {2,1,1,0,15},        /* V */
 612         },
 613     },
 614     [PIX_FMT_YUV422P16BE] = {
 615         .name = "yuv422p16be",
 616         .nb_components= 3,
 617         .log2_chroma_w= 1,
 618         .log2_chroma_h= 0,
 619         .comp = {
 620             {0,1,1,0,15},        /* Y */
 621             {1,1,1,0,15},        /* U */
 622             {2,1,1,0,15},        /* V */
 623         },
 624         .flags = PIX_FMT_BE,
 625     },
 626     [PIX_FMT_YUV444P16LE] = {
 627         .name = "yuv444p16le",
 628         .nb_components= 3,
 629         .log2_chroma_w= 0,
 630         .log2_chroma_h= 0,
 631         .comp = {
 632             {0,1,1,0,15},        /* Y */
 633             {1,1,1,0,15},        /* U */
 634             {2,1,1,0,15},        /* V */
 635         },
 636     },
 637     [PIX_FMT_YUV444P16BE] = {
 638         .name = "yuv444p16be",
 639         .nb_components= 3,
 640         .log2_chroma_w= 0,
 641         .log2_chroma_h= 0,
 642         .comp = {
 643             {0,1,1,0,15},        /* Y */
 644             {1,1,1,0,15},        /* U */
 645             {2,1,1,0,15},        /* V */
 646         },
 647         .flags = PIX_FMT_BE,
 648     },
 649     [PIX_FMT_DXVA2_VLD] = {
 650         .name = "dxva2_vld",
 651         .log2_chroma_w = 1,
 652         .log2_chroma_h = 1,
 653         .flags = PIX_FMT_HWACCEL,
 654     },
 655 };
 656
 657 static enum PixelFormat get_pix_fmt_internal(const char *name)
 658 {
 659     enum PixelFormat pix_fmt;
 660
 661     for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
 662         if (av_pix_fmt_descriptors[pix_fmt].name &&
 663             !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
 664             return pix_fmt;
 665
 666     return PIX_FMT_NONE;
 667 }
 668
 669 #if HAVE_BIGENDIAN
 670 #   define X_NE(be, le) be
 671 #else
 672 #   define X_NE(be, le) le
 673 #endif
 674
 675 enum PixelFormat av_get_pix_fmt(const char *name)
 676 {
 677     enum PixelFormat pix_fmt;
 678
 679     if (!strcmp(name, "rgb32"))
 680         name = X_NE("argb", "bgra");
 681     else if (!strcmp(name, "bgr32"))
 682         name = X_NE("abgr", "rgba");
 683
 684     pix_fmt = get_pix_fmt_internal(name);
 685     if (pix_fmt == PIX_FMT_NONE) {
 686         char name2[32];
 687
 688         snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
 689         pix_fmt = get_pix_fmt_internal(name2);
 690     }
 691     return pix_fmt;
 692 }
 693
 694 int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
 695 {
 696     int c, bits = 0;
 697     int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
 698
 699     for (c = 0; c < pixdesc->nb_components; c++) {
 700         int s = c==1 || c==2 ? 0 : log2_pixels;
 701         bits += (pixdesc->comp[c].depth_minus1+1) << s;
 702     }
 703
 704     return bits >> log2_pixels;
 705 }