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 <stdio.h>
  23 #include <string.h>
  24 #include "pixfmt.h"
  25 #include "pixdesc.h"
  26
  27 #include "intreadwrite.h"
  28
  29 void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
  30                         const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
  31 {
  32     AVComponentDescriptor comp= desc->comp[c];
  33     int plane= comp.plane;
  34     int depth= comp.depth_minus1+1;
  35     int mask = (1<<depth)-1;
  36     int shift= comp.shift;
  37     int step = comp.step_minus1+1;
  38     int flags= desc->flags;
  39
  40     if (flags & PIX_FMT_BITSTREAM){
  41         int skip = x*step + comp.offset_plus1-1;
  42         const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
  43         int shift = 8 - depth - (skip&7);
  44
  45         while(w--){
  46             int val = (*p >> shift) & mask;
  47             if(read_pal_component)
  48                 val= data[1][4*val + c];
  49             shift -= step;
  50             p -= shift>>3;
  51             shift &= 7;
  52             *dst++= val;
  53         }
  54     } else {
  55         const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
  56         int is_8bit = shift + depth <= 8;
  57
  58         if (is_8bit)
  59             p += !!(flags & PIX_FMT_BE);
  60
  61         while(w--){
  62             int val = is_8bit ? *p :
  63                 flags & PIX_FMT_BE ? AV_RB16(p) : AV_RL16(p);
  64             val = (val>>shift) & mask;
  65             if(read_pal_component)
  66                 val= data[1][4*val + c];
  67             p+= step;
  68             *dst++= val;
  69         }
  70     }
  71 }
  72
  73 void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
  74                          const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
  75 {
  76     AVComponentDescriptor comp = desc->comp[c];
  77     int plane = comp.plane;
  78     int depth = comp.depth_minus1+1;
  79     int step  = comp.step_minus1+1;
  80     int flags = desc->flags;
  81
  82     if (flags & PIX_FMT_BITSTREAM) {
  83         int skip = x*step + comp.offset_plus1-1;
  84         uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
  85         int shift = 8 - depth - (skip&7);
  86
  87         while (w--) {
  88             *p |= *src++ << shift;
  89             shift -= step;
  90             p -= shift>>3;
  91             shift &= 7;
  92         }
  93     } else {
  94         int shift = comp.shift;
  95         uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
  96
  97         if (shift + depth <= 8) {
  98             p += !!(flags & PIX_FMT_BE);
  99             while (w--) {
 100                 *p |= (*src++<<shift);
 101                 p += step;
 102             }
 103         } else {
 104             while (w--) {
 105                 if (flags & PIX_FMT_BE) {
 106                     uint16_t val = AV_RB16(p) | (*src++<<shift);
 107                     AV_WB16(p, val);
 108                 } else {
 109                     uint16_t val = AV_RL16(p) | (*src++<<shift);
 110                     AV_WL16(p, val);
 111                 }
 112                 p+= step;
 113             }
 114         }
 115     }
 116 }
 117
 118 const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
 119     [PIX_FMT_YUV420P] = {
 120         .name = "yuv420p",
 121         .nb_components= 3,
 122         .log2_chroma_w= 1,
 123         .log2_chroma_h= 1,
 124         .comp = {
 125             {0,0,1,0,7},        /* Y */
 126             {1,0,1,0,7},        /* U */
 127             {2,0,1,0,7},        /* V */
 128         },
 129     },
 130     [PIX_FMT_YUYV422] = {
 131         .name = "yuyv422",
 132         .nb_components= 3,
 133         .log2_chroma_w= 1,
 134         .log2_chroma_h= 0,
 135         .comp = {
 136             {0,1,1,0,7},        /* Y */
 137             {0,3,2,0,7},        /* U */
 138             {0,3,4,0,7},        /* V */
 139         },
 140     },
 141     [PIX_FMT_RGB24] = {
 142         .name = "rgb24",
 143         .nb_components= 3,
 144         .log2_chroma_w= 0,
 145         .log2_chroma_h= 0,
 146         .comp = {
 147             {0,2,1,0,7},        /* R */
 148             {0,2,2,0,7},        /* G */
 149             {0,2,3,0,7},        /* B */
 150         },
 151     },
 152     [PIX_FMT_BGR24] = {
 153         .name = "bgr24",
 154         .nb_components= 3,
 155         .log2_chroma_w= 0,
 156         .log2_chroma_h= 0,
 157         .comp = {
 158             {0,2,1,0,7},        /* B */
 159             {0,2,2,0,7},        /* G */
 160             {0,2,3,0,7},        /* R */
 161         },
 162     },
 163     [PIX_FMT_YUV422P] = {
 164         .name = "yuv422p",
 165         .nb_components= 3,
 166         .log2_chroma_w= 1,
 167         .log2_chroma_h= 0,
 168         .comp = {
 169             {0,0,1,0,7},        /* Y */
 170             {1,0,1,0,7},        /* U */
 171             {2,0,1,0,7},        /* V */
 172         },
 173     },
 174     [PIX_FMT_YUV444P] = {
 175         .name = "yuv444p",
 176         .nb_components= 3,
 177         .log2_chroma_w= 0,
 178         .log2_chroma_h= 0,
 179         .comp = {
 180             {0,0,1,0,7},        /* Y */
 181             {1,0,1,0,7},        /* U */
 182             {2,0,1,0,7},        /* V */
 183         },
 184     },
 185     [PIX_FMT_YUV410P] = {
 186         .name = "yuv410p",
 187         .nb_components= 3,
 188         .log2_chroma_w= 2,
 189         .log2_chroma_h= 2,
 190         .comp = {
 191             {0,0,1,0,7},        /* Y */
 192             {1,0,1,0,7},        /* U */
 193             {2,0,1,0,7},        /* V */
 194         },
 195     },
 196     [PIX_FMT_YUV411P] = {
 197         .name = "yuv411p",
 198         .nb_components= 3,
 199         .log2_chroma_w= 2,
 200         .log2_chroma_h= 0,
 201         .comp = {
 202             {0,0,1,0,7},        /* Y */
 203             {1,0,1,0,7},        /* U */
 204             {2,0,1,0,7},        /* V */
 205         },
 206     },
 207     [PIX_FMT_GRAY8] = {
 208         .name = "gray",
 209         .nb_components= 1,
 210         .log2_chroma_w= 0,
 211         .log2_chroma_h= 0,
 212         .comp = {
 213             {0,0,1,0,7},        /* Y */
 214         },
 215         .flags = PIX_FMT_PAL,
 216     },
 217     [PIX_FMT_MONOWHITE] = {
 218         .name = "monow",
 219         .nb_components= 1,
 220         .log2_chroma_w= 0,
 221         .log2_chroma_h= 0,
 222         .comp = {
 223             {0,0,1,0,0},        /* Y */
 224         },
 225         .flags = PIX_FMT_BITSTREAM,
 226     },
 227     [PIX_FMT_MONOBLACK] = {
 228         .name = "monob",
 229         .nb_components= 1,
 230         .log2_chroma_w= 0,
 231         .log2_chroma_h= 0,
 232         .comp = {
 233             {0,0,1,7,0},        /* Y */
 234         },
 235         .flags = PIX_FMT_BITSTREAM,
 236     },
 237     [PIX_FMT_PAL8] = {
 238         .name = "pal8",
 239         .nb_components= 1,
 240         .log2_chroma_w= 0,
 241         .log2_chroma_h= 0,
 242         .comp = {
 243             {0,0,1,0,7},
 244         },
 245         .flags = PIX_FMT_PAL,
 246     },
 247     [PIX_FMT_YUVJ420P] = {
 248         .name = "yuvj420p",
 249         .nb_components= 3,
 250         .log2_chroma_w= 1,
 251         .log2_chroma_h= 1,
 252         .comp = {
 253             {0,0,1,0,7},        /* Y */
 254             {1,0,1,0,7},        /* U */
 255             {2,0,1,0,7},        /* V */
 256         },
 257     },
 258     [PIX_FMT_YUVJ422P] = {
 259         .name = "yuvj422p",
 260         .nb_components= 3,
 261         .log2_chroma_w= 1,
 262         .log2_chroma_h= 0,
 263         .comp = {
 264             {0,0,1,0,7},        /* Y */
 265             {1,0,1,0,7},        /* U */
 266             {2,0,1,0,7},        /* V */
 267         },
 268     },
 269     [PIX_FMT_YUVJ444P] = {
 270         .name = "yuvj444p",
 271         .nb_components= 3,
 272         .log2_chroma_w= 0,
 273         .log2_chroma_h= 0,
 274         .comp = {
 275             {0,0,1,0,7},        /* Y */
 276             {1,0,1,0,7},        /* U */
 277             {2,0,1,0,7},        /* V */
 278         },
 279     },
 280     [PIX_FMT_XVMC_MPEG2_MC] = {
 281         .name = "xvmcmc",
 282         .flags = PIX_FMT_HWACCEL,
 283     },
 284     [PIX_FMT_XVMC_MPEG2_IDCT] = {
 285         .name = "xvmcidct",
 286         .flags = PIX_FMT_HWACCEL,
 287     },
 288     [PIX_FMT_UYVY422] = {
 289         .name = "uyvy422",
 290         .nb_components= 3,
 291         .log2_chroma_w= 1,
 292         .log2_chroma_h= 0,
 293         .comp = {
 294             {0,1,2,0,7},        /* Y */
 295             {0,3,1,0,7},        /* U */
 296             {0,3,3,0,7},        /* V */
 297         },
 298     },
 299     [PIX_FMT_UYYVYY411] = {
 300         .name = "uyyvyy411",
 301         .nb_components= 3,
 302         .log2_chroma_w= 2,
 303         .log2_chroma_h= 0,
 304         .comp = {
 305             {0,3,2,0,7},        /* Y */
 306             {0,5,1,0,7},        /* U */
 307             {0,5,4,0,7},        /* V */
 308         },
 309     },
 310     [PIX_FMT_BGR8] = {
 311         .name = "bgr8",
 312         .nb_components= 3,
 313         .log2_chroma_w= 0,
 314         .log2_chroma_h= 0,
 315         .comp = {
 316             {0,0,1,6,1},        /* B */
 317             {0,0,1,3,2},        /* G */
 318             {0,0,1,0,2},        /* R */
 319         },
 320         .flags = PIX_FMT_PAL,
 321     },
 322     [PIX_FMT_BGR4] = {
 323         .name = "bgr4",
 324         .nb_components= 3,
 325         .log2_chroma_w= 0,
 326         .log2_chroma_h= 0,
 327         .comp = {
 328             {0,3,1,0,0},        /* B */
 329             {0,3,2,0,1},        /* G */
 330             {0,3,4,0,0},        /* R */
 331         },
 332         .flags = PIX_FMT_BITSTREAM,
 333     },
 334     [PIX_FMT_BGR4_BYTE] = {
 335         .name = "bgr4_byte",
 336         .nb_components= 3,
 337         .log2_chroma_w= 0,
 338         .log2_chroma_h= 0,
 339         .comp = {
 340             {0,0,1,3,0},        /* B */
 341             {0,0,1,1,1},        /* G */
 342             {0,0,1,0,0},        /* R */
 343         },
 344         .flags = PIX_FMT_PAL,
 345     },
 346     [PIX_FMT_RGB8] = {
 347         .name = "rgb8",
 348         .nb_components= 3,
 349         .log2_chroma_w= 0,
 350         .log2_chroma_h= 0,
 351         .comp = {
 352             {0,0,1,6,1},        /* R */
 353             {0,0,1,3,2},        /* G */
 354             {0,0,1,0,2},        /* B */
 355         },
 356         .flags = PIX_FMT_PAL,
 357     },
 358     [PIX_FMT_RGB4] = {
 359         .name = "rgb4",
 360         .nb_components= 3,
 361         .log2_chroma_w= 0,
 362         .log2_chroma_h= 0,
 363         .comp = {
 364             {0,3,1,0,0},       /* R */
 365             {0,3,2,0,1},       /* G */
 366             {0,3,4,0,0},       /* B */
 367         },
 368         .flags = PIX_FMT_BITSTREAM,
 369     },
 370     [PIX_FMT_RGB4_BYTE] = {
 371         .name = "rgb4_byte",
 372         .nb_components= 3,
 373         .log2_chroma_w= 0,
 374         .log2_chroma_h= 0,
 375         .comp = {
 376             {0,0,1,3,0},        /* R */
 377             {0,0,1,1,1},        /* G */
 378             {0,0,1,0,0},        /* B */
 379         },
 380         .flags = PIX_FMT_PAL,
 381     },
 382     [PIX_FMT_NV12] = {
 383         .name = "nv12",
 384         .nb_components= 3,
 385         .log2_chroma_w= 1,
 386         .log2_chroma_h= 1,
 387         .comp = {
 388             {0,0,1,0,7},        /* Y */
 389             {1,1,1,0,7},        /* U */
 390             {1,1,2,0,7},        /* V */
 391         },
 392     },
 393     [PIX_FMT_NV21] = {
 394         .name = "nv21",
 395         .nb_components= 3,
 396         .log2_chroma_w= 1,
 397         .log2_chroma_h= 1,
 398         .comp = {
 399             {0,0,1,0,7},        /* Y */
 400             {1,1,1,0,7},        /* V */
 401             {1,1,2,0,7},        /* U */
 402         },
 403     },
 404     [PIX_FMT_ARGB] = {
 405         .name = "argb",
 406         .nb_components= 4,
 407         .log2_chroma_w= 0,
 408         .log2_chroma_h= 0,
 409         .comp = {
 410             {0,3,1,0,7},        /* A */
 411             {0,3,2,0,7},        /* R */
 412             {0,3,3,0,7},        /* G */
 413             {0,3,4,0,7},        /* B */
 414         },
 415     },
 416     [PIX_FMT_RGBA] = {
 417         .name = "rgba",
 418         .nb_components= 4,
 419         .log2_chroma_w= 0,
 420         .log2_chroma_h= 0,
 421         .comp = {
 422             {0,3,1,0,7},        /* R */
 423             {0,3,2,0,7},        /* G */
 424             {0,3,3,0,7},        /* B */
 425             {0,3,4,0,7},        /* A */
 426         },
 427     },
 428     [PIX_FMT_ABGR] = {
 429         .name = "abgr",
 430         .nb_components= 4,
 431         .log2_chroma_w= 0,
 432         .log2_chroma_h= 0,
 433         .comp = {
 434             {0,3,1,0,7},        /* A */
 435             {0,3,2,0,7},        /* B */
 436             {0,3,3,0,7},        /* G */
 437             {0,3,4,0,7},        /* R */
 438         },
 439     },
 440     [PIX_FMT_BGRA] = {
 441         .name = "bgra",
 442         .nb_components= 4,
 443         .log2_chroma_w= 0,
 444         .log2_chroma_h= 0,
 445         .comp = {
 446             {0,3,1,0,7},        /* B */
 447             {0,3,2,0,7},        /* G */
 448             {0,3,3,0,7},        /* R */
 449             {0,3,4,0,7},        /* A */
 450         },
 451     },
 452     [PIX_FMT_GRAY16BE] = {
 453         .name = "gray16be",
 454         .nb_components= 1,
 455         .log2_chroma_w= 0,
 456         .log2_chroma_h= 0,
 457         .comp = {
 458             {0,1,1,0,15},       /* Y */
 459         },
 460         .flags = PIX_FMT_BE,
 461     },
 462     [PIX_FMT_GRAY16LE] = {
 463         .name = "gray16le",
 464         .nb_components= 1,
 465         .log2_chroma_w= 0,
 466         .log2_chroma_h= 0,
 467         .comp = {
 468             {0,1,1,0,15},       /* Y */
 469         },
 470     },
 471     [PIX_FMT_YUV440P] = {
 472         .name = "yuv440p",
 473         .nb_components= 3,
 474         .log2_chroma_w= 0,
 475         .log2_chroma_h= 1,
 476         .comp = {
 477             {0,0,1,0,7},        /* Y */
 478             {1,0,1,0,7},        /* U */
 479             {2,0,1,0,7},        /* V */
 480         },
 481     },
 482     [PIX_FMT_YUVJ440P] = {
 483         .name = "yuvj440p",
 484         .nb_components= 3,
 485         .log2_chroma_w= 0,
 486         .log2_chroma_h= 1,
 487         .comp = {
 488             {0,0,1,0,7},        /* Y */
 489             {1,0,1,0,7},        /* U */
 490             {2,0,1,0,7},        /* V */
 491         },
 492     },
 493     [PIX_FMT_YUVA420P] = {
 494         .name = "yuva420p",
 495         .nb_components= 4,
 496         .log2_chroma_w= 1,
 497         .log2_chroma_h= 1,
 498         .comp = {
 499             {0,0,1,0,7},        /* Y */
 500             {1,0,1,0,7},        /* U */
 501             {2,0,1,0,7},        /* V */
 502             {3,0,1,0,7},        /* A */
 503         },
 504     },
 505     [PIX_FMT_VDPAU_H264] = {
 506         .name = "vdpau_h264",
 507         .log2_chroma_w = 1,
 508         .log2_chroma_h = 1,
 509         .flags = PIX_FMT_HWACCEL,
 510     },
 511     [PIX_FMT_VDPAU_MPEG1] = {
 512         .name = "vdpau_mpeg1",
 513         .log2_chroma_w = 1,
 514         .log2_chroma_h = 1,
 515         .flags = PIX_FMT_HWACCEL,
 516     },
 517     [PIX_FMT_VDPAU_MPEG2] = {
 518         .name = "vdpau_mpeg2",
 519         .log2_chroma_w = 1,
 520         .log2_chroma_h = 1,
 521         .flags = PIX_FMT_HWACCEL,
 522     },
 523     [PIX_FMT_VDPAU_WMV3] = {
 524         .name = "vdpau_wmv3",
 525         .log2_chroma_w = 1,
 526         .log2_chroma_h = 1,
 527         .flags = PIX_FMT_HWACCEL,
 528     },
 529     [PIX_FMT_VDPAU_VC1] = {
 530         .name = "vdpau_vc1",
 531         .log2_chroma_w = 1,
 532         .log2_chroma_h = 1,
 533         .flags = PIX_FMT_HWACCEL,
 534     },
 535     [PIX_FMT_VDPAU_MPEG4] = {
 536         .name = "vdpau_mpeg4",
 537         .log2_chroma_w = 1,
 538         .log2_chroma_h = 1,
 539         .flags = PIX_FMT_HWACCEL,
 540     },
 541     [PIX_FMT_RGB48BE] = {
 542         .name = "rgb48be",
 543         .nb_components= 3,
 544         .log2_chroma_w= 0,
 545         .log2_chroma_h= 0,
 546         .comp = {
 547             {0,5,1,0,15},       /* R */
 548             {0,5,3,0,15},       /* G */
 549             {0,5,5,0,15},       /* B */
 550         },
 551         .flags = PIX_FMT_BE,
 552     },
 553     [PIX_FMT_RGB48LE] = {
 554         .name = "rgb48le",
 555         .nb_components= 3,
 556         .log2_chroma_w= 0,
 557         .log2_chroma_h= 0,
 558         .comp = {
 559             {0,5,1,0,15},       /* R */
 560             {0,5,3,0,15},       /* G */
 561             {0,5,5,0,15},       /* B */
 562         },
 563     },
 564     [PIX_FMT_RGBA64BE] = {
 565         .name = "rgba64be",
 566         .nb_components= 4,
 567         .log2_chroma_w= 0,
 568         .log2_chroma_h= 0,
 569         .comp = {
 570             {0,5,1,0,15},       /* R */
 571             {0,5,3,0,15},       /* G */
 572             {0,5,5,0,15},       /* B */
 573             {0,5,7,0,15},       /* A */
 574         },
 575         .flags = PIX_FMT_BE,
 576     },
 577     [PIX_FMT_RGBA64LE] = {
 578         .name = "rgba64le",
 579         .nb_components= 4,
 580         .log2_chroma_w= 0,
 581         .log2_chroma_h= 0,
 582         .comp = {
 583             {0,5,1,0,15},       /* R */
 584             {0,5,3,0,15},       /* G */
 585             {0,5,5,0,15},       /* B */
 586             {0,5,7,0,15},       /* B */
 587         },
 588     },
 589     [PIX_FMT_RGB565BE] = {
 590         .name = "rgb565be",
 591         .nb_components= 3,
 592         .log2_chroma_w= 0,
 593         .log2_chroma_h= 0,
 594         .comp = {
 595             {0,1,0,3,4},        /* R */
 596             {0,1,1,5,5},        /* G */
 597             {0,1,1,0,4},        /* B */
 598         },
 599         .flags = PIX_FMT_BE,
 600     },
 601     [PIX_FMT_RGB565LE] = {
 602         .name = "rgb565le",
 603         .nb_components= 3,
 604         .log2_chroma_w= 0,
 605         .log2_chroma_h= 0,
 606         .comp = {
 607             {0,1,2,3,4},        /* R */
 608             {0,1,1,5,5},        /* G */
 609             {0,1,1,0,4},        /* B */
 610         },
 611     },
 612     [PIX_FMT_RGB555BE] = {
 613         .name = "rgb555be",
 614         .nb_components= 3,
 615         .log2_chroma_w= 0,
 616         .log2_chroma_h= 0,
 617         .comp = {
 618             {0,1,0,2,4},        /* R */
 619             {0,1,1,5,4},        /* G */
 620             {0,1,1,0,4},        /* B */
 621         },
 622         .flags = PIX_FMT_BE,
 623     },
 624     [PIX_FMT_RGB555LE] = {
 625         .name = "rgb555le",
 626         .nb_components= 3,
 627         .log2_chroma_w= 0,
 628         .log2_chroma_h= 0,
 629         .comp = {
 630             {0,1,2,2,4},        /* R */
 631             {0,1,1,5,4},        /* G */
 632             {0,1,1,0,4},        /* B */
 633         },
 634     },
 635     [PIX_FMT_RGB444BE] = {
 636         .name = "rgb444be",
 637         .nb_components= 3,
 638         .log2_chroma_w= 0,
 639         .log2_chroma_h= 0,
 640         .comp = {
 641             {0,1,0,0,3},        /* R */
 642             {0,1,1,4,3},        /* G */
 643             {0,1,1,0,3},        /* B */
 644         },
 645         .flags = PIX_FMT_BE,
 646     },
 647     [PIX_FMT_RGB444LE] = {
 648         .name = "rgb444le",
 649         .nb_components= 3,
 650         .log2_chroma_w= 0,
 651         .log2_chroma_h= 0,
 652         .comp = {
 653             {0,1,2,0,3},        /* R */
 654             {0,1,1,4,3},        /* G */
 655             {0,1,1,0,3},        /* B */
 656         },
 657     },
 658     [PIX_FMT_BGR48BE] = {
 659         .name = "bgr48be",
 660         .nb_components= 3,
 661         .log2_chroma_w= 0,
 662         .log2_chroma_h= 0,
 663         .comp = {
 664             {0,5,1,0,15},       /* B */
 665             {0,5,3,0,15},       /* G */
 666             {0,5,5,0,15},       /* R */
 667         },
 668         .flags = PIX_FMT_BE,
 669     },
 670     [PIX_FMT_BGR48LE] = {
 671         .name = "bgr48le",
 672         .nb_components= 3,
 673         .log2_chroma_w= 0,
 674         .log2_chroma_h= 0,
 675         .comp = {
 676             {0,5,1,0,15},       /* B */
 677             {0,5,3,0,15},       /* G */
 678             {0,5,5,0,15},       /* R */
 679         },
 680     },
 681     [PIX_FMT_BGRA64BE] = {
 682         .name = "bgra64be",
 683         .nb_components= 4,
 684         .log2_chroma_w= 0,
 685         .log2_chroma_h= 0,
 686         .comp = {
 687             {0,5,1,0,15},       /* B */
 688             {0,5,3,0,15},       /* G */
 689             {0,5,5,0,15},       /* R */
 690             {0,5,7,0,15},       /* A */
 691         },
 692         .flags = PIX_FMT_BE,
 693     },
 694     [PIX_FMT_BGRA64LE] = {
 695         .name = "bgra64le",
 696         .nb_components= 4,
 697         .log2_chroma_w= 0,
 698         .log2_chroma_h= 0,
 699         .comp = {
 700             {0,5,1,0,15},       /* B */
 701             {0,5,3,0,15},       /* G */
 702             {0,5,5,0,15},       /* R */
 703             {0,5,7,0,15},       /* A */
 704         },
 705     },
 706     [PIX_FMT_BGR565BE] = {
 707         .name = "bgr565be",
 708         .nb_components= 3,
 709         .log2_chroma_w= 0,
 710         .log2_chroma_h= 0,
 711         .comp = {
 712             {0,1,0,3,4},        /* B */
 713             {0,1,1,5,5},        /* G */
 714             {0,1,1,0,4},        /* R */
 715         },
 716         .flags = PIX_FMT_BE,
 717     },
 718     [PIX_FMT_BGR565LE] = {
 719         .name = "bgr565le",
 720         .nb_components= 3,
 721         .log2_chroma_w= 0,
 722         .log2_chroma_h= 0,
 723         .comp = {
 724             {0,1,2,3,4},        /* B */
 725             {0,1,1,5,5},        /* G */
 726             {0,1,1,0,4},        /* R */
 727         },
 728     },
 729     [PIX_FMT_BGR555BE] = {
 730         .name = "bgr555be",
 731         .nb_components= 3,
 732         .log2_chroma_w= 0,
 733         .log2_chroma_h= 0,
 734         .comp = {
 735             {0,1,0,2,4},       /* B */
 736             {0,1,1,5,4},       /* G */
 737             {0,1,1,0,4},       /* R */
 738         },
 739         .flags = PIX_FMT_BE,
 740      },
 741     [PIX_FMT_BGR555LE] = {
 742         .name = "bgr555le",
 743         .nb_components= 3,
 744         .log2_chroma_w= 0,
 745         .log2_chroma_h= 0,
 746         .comp = {
 747             {0,1,2,2,4},        /* B */
 748             {0,1,1,5,4},        /* G */
 749             {0,1,1,0,4},        /* R */
 750         },
 751     },
 752     [PIX_FMT_BGR444BE] = {
 753         .name = "bgr444be",
 754         .nb_components= 3,
 755         .log2_chroma_w= 0,
 756         .log2_chroma_h= 0,
 757         .comp = {
 758             {0,1,0,0,3},       /* B */
 759             {0,1,1,4,3},       /* G */
 760             {0,1,1,0,3},       /* R */
 761         },
 762         .flags = PIX_FMT_BE,
 763      },
 764     [PIX_FMT_BGR444LE] = {
 765         .name = "bgr444le",
 766         .nb_components= 3,
 767         .log2_chroma_w= 0,
 768         .log2_chroma_h= 0,
 769         .comp = {
 770             {0,1,2,0,3},        /* B */
 771             {0,1,1,4,3},        /* G */
 772             {0,1,1,0,3},        /* R */
 773         },
 774     },
 775     [PIX_FMT_VAAPI_MOCO] = {
 776         .name = "vaapi_moco",
 777         .log2_chroma_w = 1,
 778         .log2_chroma_h = 1,
 779         .flags = PIX_FMT_HWACCEL,
 780     },
 781     [PIX_FMT_VAAPI_IDCT] = {
 782         .name = "vaapi_idct",
 783         .log2_chroma_w = 1,
 784         .log2_chroma_h = 1,
 785         .flags = PIX_FMT_HWACCEL,
 786     },
 787     [PIX_FMT_VAAPI_VLD] = {
 788         .name = "vaapi_vld",
 789         .log2_chroma_w = 1,
 790         .log2_chroma_h = 1,
 791         .flags = PIX_FMT_HWACCEL,
 792     },
 793     [PIX_FMT_YUV420P9LE] = {
 794         .name = "yuv420p9le",
 795         .nb_components= 3,
 796         .log2_chroma_w= 1,
 797         .log2_chroma_h= 1,
 798         .comp = {
 799             {0,1,1,0,8},        /* Y */
 800             {1,1,1,0,8},        /* U */
 801             {2,1,1,0,8},        /* V */
 802         },
 803     },
 804     [PIX_FMT_YUV420P9BE] = {
 805         .name = "yuv420p9be",
 806         .nb_components= 3,
 807         .log2_chroma_w= 1,
 808         .log2_chroma_h= 1,
 809         .comp = {
 810             {0,1,1,0,8},        /* Y */
 811             {1,1,1,0,8},        /* U */
 812             {2,1,1,0,8},        /* V */
 813         },
 814         .flags = PIX_FMT_BE,
 815     },
 816     [PIX_FMT_YUV420P10LE] = {
 817         .name = "yuv420p10le",
 818         .nb_components= 3,
 819         .log2_chroma_w= 1,
 820         .log2_chroma_h= 1,
 821         .comp = {
 822             {0,1,1,0,9},        /* Y */
 823             {1,1,1,0,9},        /* U */
 824             {2,1,1,0,9},        /* V */
 825         },
 826     },
 827     [PIX_FMT_YUV420P10BE] = {
 828         .name = "yuv420p10be",
 829         .nb_components= 3,
 830         .log2_chroma_w= 1,
 831         .log2_chroma_h= 1,
 832         .comp = {
 833             {0,1,1,0,9},        /* Y */
 834             {1,1,1,0,9},        /* U */
 835             {2,1,1,0,9},        /* V */
 836         },
 837         .flags = PIX_FMT_BE,
 838     },
 839     [PIX_FMT_YUV420P16LE] = {
 840         .name = "yuv420p16le",
 841         .nb_components= 3,
 842         .log2_chroma_w= 1,
 843         .log2_chroma_h= 1,
 844         .comp = {
 845             {0,1,1,0,15},        /* Y */
 846             {1,1,1,0,15},        /* U */
 847             {2,1,1,0,15},        /* V */
 848         },
 849     },
 850     [PIX_FMT_YUV420P16BE] = {
 851         .name = "yuv420p16be",
 852         .nb_components= 3,
 853         .log2_chroma_w= 1,
 854         .log2_chroma_h= 1,
 855         .comp = {
 856             {0,1,1,0,15},        /* Y */
 857             {1,1,1,0,15},        /* U */
 858             {2,1,1,0,15},        /* V */
 859         },
 860         .flags = PIX_FMT_BE,
 861     },
 862     [PIX_FMT_YUV422P9LE] = {
 863         .name = "yuv422p9le",
 864         .nb_components= 3,
 865         .log2_chroma_w= 1,
 866         .log2_chroma_h= 0,
 867         .comp = {
 868             {0,1,1,0,8},        /* Y */
 869             {1,1,1,0,8},        /* U */
 870             {2,1,1,0,8},        /* V */
 871         },
 872     },
 873     [PIX_FMT_YUV422P9BE] = {
 874         .name = "yuv422p9be",
 875         .nb_components= 3,
 876         .log2_chroma_w= 1,
 877         .log2_chroma_h= 0,
 878         .comp = {
 879             {0,1,1,0,8},        /* Y */
 880             {1,1,1,0,8},        /* U */
 881             {2,1,1,0,8},        /* V */
 882         },
 883         .flags = PIX_FMT_BE,
 884     },
 885     [PIX_FMT_YUV422P10LE] = {
 886         .name = "yuv422p10le",
 887         .nb_components= 3,
 888         .log2_chroma_w= 1,
 889         .log2_chroma_h= 0,
 890         .comp = {
 891             {0,1,1,0,9},        /* Y */
 892             {1,1,1,0,9},        /* U */
 893             {2,1,1,0,9},        /* V */
 894         },
 895     },
 896     [PIX_FMT_YUV422P10BE] = {
 897         .name = "yuv422p10be",
 898         .nb_components= 3,
 899         .log2_chroma_w= 1,
 900         .log2_chroma_h= 0,
 901         .comp = {
 902             {0,1,1,0,9},        /* Y */
 903             {1,1,1,0,9},        /* U */
 904             {2,1,1,0,9},        /* V */
 905         },
 906         .flags = PIX_FMT_BE,
 907     },
 908     [PIX_FMT_YUV422P16LE] = {
 909         .name = "yuv422p16le",
 910         .nb_components= 3,
 911         .log2_chroma_w= 1,
 912         .log2_chroma_h= 0,
 913         .comp = {
 914             {0,1,1,0,15},        /* Y */
 915             {1,1,1,0,15},        /* U */
 916             {2,1,1,0,15},        /* V */
 917         },
 918     },
 919     [PIX_FMT_YUV422P16BE] = {
 920         .name = "yuv422p16be",
 921         .nb_components= 3,
 922         .log2_chroma_w= 1,
 923         .log2_chroma_h= 0,
 924         .comp = {
 925             {0,1,1,0,15},        /* Y */
 926             {1,1,1,0,15},        /* U */
 927             {2,1,1,0,15},        /* V */
 928         },
 929         .flags = PIX_FMT_BE,
 930     },
 931     [PIX_FMT_YUV444P16LE] = {
 932         .name = "yuv444p16le",
 933         .nb_components= 3,
 934         .log2_chroma_w= 0,
 935         .log2_chroma_h= 0,
 936         .comp = {
 937             {0,1,1,0,15},        /* Y */
 938             {1,1,1,0,15},        /* U */
 939             {2,1,1,0,15},        /* V */
 940         },
 941     },
 942     [PIX_FMT_YUV444P16BE] = {
 943         .name = "yuv444p16be",
 944         .nb_components= 3,
 945         .log2_chroma_w= 0,
 946         .log2_chroma_h= 0,
 947         .comp = {
 948             {0,1,1,0,15},        /* Y */
 949             {1,1,1,0,15},        /* U */
 950             {2,1,1,0,15},        /* V */
 951         },
 952         .flags = PIX_FMT_BE,
 953     },
 954     [PIX_FMT_YUV444P10LE] = {
 955         .name = "yuv444p10le",
 956         .nb_components= 3,
 957         .log2_chroma_w= 0,
 958         .log2_chroma_h= 0,
 959         .comp = {
 960             {0,1,1,0,9},        /* Y */
 961             {1,1,1,0,9},        /* U */
 962             {2,1,1,0,9},        /* V */
 963         },
 964     },
 965     [PIX_FMT_YUV444P10BE] = {
 966         .name = "yuv444p10be",
 967         .nb_components= 3,
 968         .log2_chroma_w= 0,
 969         .log2_chroma_h= 0,
 970         .comp = {
 971             {0,1,1,0,9},        /* Y */
 972             {1,1,1,0,9},        /* U */
 973             {2,1,1,0,9},        /* V */
 974         },
 975         .flags = PIX_FMT_BE,
 976     },
 977     [PIX_FMT_YUV444P9LE] = {
 978         .name = "yuv444p9le",
 979         .nb_components= 3,
 980         .log2_chroma_w= 0,
 981         .log2_chroma_h= 0,
 982         .comp = {
 983             {0,1,1,0,8},        /* Y */
 984             {1,1,1,0,8},        /* U */
 985             {2,1,1,0,8},        /* V */
 986         },
 987     },
 988     [PIX_FMT_YUV444P9BE] = {
 989         .name = "yuv444p9be",
 990         .nb_components= 3,
 991         .log2_chroma_w= 0,
 992         .log2_chroma_h= 0,
 993         .comp = {
 994             {0,1,1,0,8},        /* Y */
 995             {1,1,1,0,8},        /* U */
 996             {2,1,1,0,8},        /* V */
 997         },
 998         .flags = PIX_FMT_BE,
 999     },
1000     [PIX_FMT_DXVA2_VLD] = {
1001         .name = "dxva2_vld",
1002         .log2_chroma_w = 1,
1003         .log2_chroma_h = 1,
1004         .flags = PIX_FMT_HWACCEL,
1005     },
1006     [PIX_FMT_VDA_VLD] = {
1007         .name = "vda_vld",
1008         .log2_chroma_w = 1,
1009         .log2_chroma_h = 1,
1010         .flags = PIX_FMT_HWACCEL,
1011     },
1012     [PIX_FMT_GRAY8A] = {
1013         .name = "gray8a",
1014         .nb_components= 2,
1015         .comp = {
1016             {0,1,1,0,7},        /* Y */
1017             {0,1,2,0,7},        /* A */
1018         },
1019     },
1020     [PIX_FMT_GBR24P] = {
1021         .name = "gbr24p",
1022         .nb_components= 3,
1023         .comp = {
1024             {1,0,1,0,7},        /* B */
1025             {0,0,1,0,7},        /* G */
1026             {2,0,1,0,7},        /* R */
1027         },
1028     },
1029 };
1030
1031 static enum PixelFormat get_pix_fmt_internal(const char *name)
1032 {
1033     enum PixelFormat pix_fmt;
1034
1035     for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
1036         if (av_pix_fmt_descriptors[pix_fmt].name &&
1037             !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
1038             return pix_fmt;
1039
1040     return PIX_FMT_NONE;
1041 }
1042
1043 const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt)
1044 {
1045     return (unsigned)pix_fmt < PIX_FMT_NB ?
1046         av_pix_fmt_descriptors[pix_fmt].name : NULL;
1047 }
1048
1049 #if HAVE_BIGENDIAN
1050 #   define X_NE(be, le) be
1051 #else
1052 #   define X_NE(be, le) le
1053 #endif
1054
1055 enum PixelFormat av_get_pix_fmt(const char *name)
1056 {
1057     enum PixelFormat pix_fmt;
1058
1059     if (!strcmp(name, "rgb32"))
1060         name = X_NE("argb", "bgra");
1061     else if (!strcmp(name, "bgr32"))
1062         name = X_NE("abgr", "rgba");
1063
1064     pix_fmt = get_pix_fmt_internal(name);
1065     if (pix_fmt == PIX_FMT_NONE) {
1066         char name2[32];
1067
1068         snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
1069         pix_fmt = get_pix_fmt_internal(name2);
1070     }
1071     return pix_fmt;
1072 }
1073
1074 int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
1075 {
1076     int c, bits = 0;
1077     int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
1078
1079     for (c = 0; c < pixdesc->nb_components; c++) {
1080         int s = c==1 || c==2 ? 0 : log2_pixels;
1081         bits += (pixdesc->comp[c].depth_minus1+1) << s;
1082     }
1083
1084     return bits >> log2_pixels;
1085 }
1086
1087 char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
1088 {
1089     /* print header */
1090     if (pix_fmt < 0) {
1091         snprintf (buf, buf_size, "name      " " nb_components" " nb_bits");
1092     } else {
1093         const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];
1094         snprintf(buf, buf_size, "%-11s %7d %10d",
1095                  pixdesc->name, pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));
1096     }
1097
1098     return buf;
1099 }