FFmpeg: libavutil/pixdesc.c Source File

00001 /*
00002  * pixel format descriptor
00003  * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00022 #include <stdio.h>
00023 #include <string.h>
00024 #include "pixfmt.h"
00025 #include "pixdesc.h"
00026 
00027 #include "intreadwrite.h"
00028 
00029 void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
00030                         const AVPixFmtDescriptor *desc, int x, int y, int c, int w,
00031                         int read_pal_component)
00032 {
00033     AVComponentDescriptor comp = desc->comp[c];
00034     int plane = comp.plane;
00035     int depth = comp.depth_minus1 + 1;
00036     int mask  = (1 << depth) - 1;
00037     int shift = comp.shift;
00038     int step  = comp.step_minus1 + 1;
00039     int flags = desc->flags;
00040 
00041     if (flags & PIX_FMT_BITSTREAM) {
00042         int skip = x * step + comp.offset_plus1 - 1;
00043         const uint8_t *p = data[plane] + y * linesize[plane] + (skip >> 3);
00044         int shift = 8 - depth - (skip & 7);
00045 
00046         while (w--) {
00047             int val = (*p >> shift) & mask;
00048             if (read_pal_component)
00049                 val = data[1][4*val + c];
00050             shift -= step;
00051             p -= shift >> 3;
00052             shift &= 7;
00053             *dst++ = val;
00054         }
00055     } else {
00056         const uint8_t *p = data[plane] + y * linesize[plane] + x * step + comp.offset_plus1 - 1;
00057         int is_8bit = shift + depth <= 8;
00058 
00059         if (is_8bit)
00060             p += !!(flags & PIX_FMT_BE);
00061 
00062         while (w--) {
00063             int val = is_8bit ? *p :
00064                 flags & PIX_FMT_BE ? AV_RB16(p) : AV_RL16(p);
00065             val = (val >> shift) & mask;
00066             if (read_pal_component)
00067                 val = data[1][4 * val + c];
00068             p += step;
00069             *dst++ = val;
00070         }
00071     }
00072 }
00073 
00074 void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
00075                          const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
00076 {
00077     AVComponentDescriptor comp = desc->comp[c];
00078     int plane = comp.plane;
00079     int depth = comp.depth_minus1 + 1;
00080     int step  = comp.step_minus1 + 1;
00081     int flags = desc->flags;
00082 
00083     if (flags & PIX_FMT_BITSTREAM) {
00084         int skip = x * step + comp.offset_plus1 - 1;
00085         uint8_t *p = data[plane] + y * linesize[plane] + (skip >> 3);
00086         int shift = 8 - depth - (skip & 7);
00087 
00088         while (w--) {
00089             *p |= *src++ << shift;
00090             shift -= step;
00091             p -= shift >> 3;
00092             shift &= 7;
00093         }
00094     } else {
00095         int shift = comp.shift;
00096         uint8_t *p = data[plane] + y * linesize[plane] + x * step + comp.offset_plus1 - 1;
00097 
00098         if (shift + depth <= 8) {
00099             p += !!(flags & PIX_FMT_BE);
00100             while (w--) {
00101                 *p |= (*src++ << shift);
00102                 p += step;
00103             }
00104         } else {
00105             while (w--) {
00106                 if (flags & PIX_FMT_BE) {
00107                     uint16_t val = AV_RB16(p) | (*src++ << shift);
00108                     AV_WB16(p, val);
00109                 } else {
00110                     uint16_t val = AV_RL16(p) | (*src++ << shift);
00111                     AV_WL16(p, val);
00112                 }
00113                 p += step;
00114             }
00115         }
00116     }
00117 }
00118 
00119 const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
00120     [PIX_FMT_YUV420P] = {
00121         .name = "yuv420p",
00122         .nb_components = 3,
00123         .log2_chroma_w = 1,
00124         .log2_chroma_h = 1,
00125         .comp = {
00126             { 0, 0, 1, 0, 7 },        /* Y */
00127             { 1, 0, 1, 0, 7 },        /* U */
00128             { 2, 0, 1, 0, 7 },        /* V */
00129         },
00130         .flags = PIX_FMT_PLANAR,
00131     },
00132     [PIX_FMT_YUYV422] = {
00133         .name = "yuyv422",
00134         .nb_components = 3,
00135         .log2_chroma_w = 1,
00136         .log2_chroma_h = 0,
00137         .comp = {
00138             { 0, 1, 1, 0, 7 },        /* Y */
00139             { 0, 3, 2, 0, 7 },        /* U */
00140             { 0, 3, 4, 0, 7 },        /* V */
00141         },
00142     },
00143     [PIX_FMT_RGB24] = {
00144         .name = "rgb24",
00145         .nb_components = 3,
00146         .log2_chroma_w = 0,
00147         .log2_chroma_h = 0,
00148         .comp = {
00149             { 0, 2, 1, 0, 7 },        /* R */
00150             { 0, 2, 2, 0, 7 },        /* G */
00151             { 0, 2, 3, 0, 7 },        /* B */
00152         },
00153         .flags = PIX_FMT_RGB,
00154     },
00155     [PIX_FMT_BGR24] = {
00156         .name = "bgr24",
00157         .nb_components = 3,
00158         .log2_chroma_w = 0,
00159         .log2_chroma_h = 0,
00160         .comp = {
00161             { 0, 2, 3, 0, 7 },        /* R */
00162             { 0, 2, 2, 0, 7 },        /* G */
00163             { 0, 2, 1, 0, 7 },        /* B */
00164         },
00165         .flags = PIX_FMT_RGB,
00166     },
00167     [PIX_FMT_YUV422P] = {
00168         .name = "yuv422p",
00169         .nb_components = 3,
00170         .log2_chroma_w = 1,
00171         .log2_chroma_h = 0,
00172         .comp = {
00173             { 0, 0, 1, 0, 7 },        /* Y */
00174             { 1, 0, 1, 0, 7 },        /* U */
00175             { 2, 0, 1, 0, 7 },        /* V */
00176         },
00177         .flags = PIX_FMT_PLANAR,
00178     },
00179     [PIX_FMT_YUV444P] = {
00180         .name = "yuv444p",
00181         .nb_components = 3,
00182         .log2_chroma_w = 0,
00183         .log2_chroma_h = 0,
00184         .comp = {
00185             { 0, 0, 1, 0, 7 },        /* Y */
00186             { 1, 0, 1, 0, 7 },        /* U */
00187             { 2, 0, 1, 0, 7 },        /* V */
00188         },
00189         .flags = PIX_FMT_PLANAR,
00190     },
00191     [PIX_FMT_YUV410P] = {
00192         .name = "yuv410p",
00193         .nb_components = 3,
00194         .log2_chroma_w = 2,
00195         .log2_chroma_h = 2,
00196         .comp = {
00197             { 0, 0, 1, 0, 7 },        /* Y */
00198             { 1, 0, 1, 0, 7 },        /* U */
00199             { 2, 0, 1, 0, 7 },        /* V */
00200         },
00201         .flags = PIX_FMT_PLANAR,
00202     },
00203     [PIX_FMT_YUV411P] = {
00204         .name = "yuv411p",
00205         .nb_components = 3,
00206         .log2_chroma_w = 2,
00207         .log2_chroma_h = 0,
00208         .comp = {
00209             { 0, 0, 1, 0, 7 },        /* Y */
00210             { 1, 0, 1, 0, 7 },        /* U */
00211             { 2, 0, 1, 0, 7 },        /* V */
00212         },
00213         .flags = PIX_FMT_PLANAR,
00214     },
00215     [PIX_FMT_GRAY8] = {
00216         .name = "gray",
00217         .nb_components = 1,
00218         .log2_chroma_w = 0,
00219         .log2_chroma_h = 0,
00220         .comp = {
00221             { 0, 0, 1, 0, 7 },        /* Y */
00222         },
00223         .flags = PIX_FMT_PSEUDOPAL,
00224     },
00225     [PIX_FMT_MONOWHITE] = {
00226         .name = "monow",
00227         .nb_components = 1,
00228         .log2_chroma_w = 0,
00229         .log2_chroma_h = 0,
00230         .comp = {
00231             { 0, 0, 1, 0, 0 },        /* Y */
00232         },
00233         .flags = PIX_FMT_BITSTREAM,
00234     },
00235     [PIX_FMT_MONOBLACK] = {
00236         .name = "monob",
00237         .nb_components = 1,
00238         .log2_chroma_w = 0,
00239         .log2_chroma_h = 0,
00240         .comp = {
00241             { 0, 0, 1, 7, 0 },        /* Y */
00242         },
00243         .flags = PIX_FMT_BITSTREAM,
00244     },
00245     [PIX_FMT_PAL8] = {
00246         .name = "pal8",
00247         .nb_components = 1,
00248         .log2_chroma_w = 0,
00249         .log2_chroma_h = 0,
00250         .comp = {
00251             { 0, 0, 1, 0, 7 },
00252         },
00253         .flags = PIX_FMT_PAL,
00254     },
00255     [PIX_FMT_YUVJ420P] = {
00256         .name = "yuvj420p",
00257         .nb_components = 3,
00258         .log2_chroma_w = 1,
00259         .log2_chroma_h = 1,
00260         .comp = {
00261             { 0, 0, 1, 0, 7 },        /* Y */
00262             { 1, 0, 1, 0, 7 },        /* U */
00263             { 2, 0, 1, 0, 7 },        /* V */
00264         },
00265         .flags = PIX_FMT_PLANAR,
00266     },
00267     [PIX_FMT_YUVJ422P] = {
00268         .name = "yuvj422p",
00269         .nb_components = 3,
00270         .log2_chroma_w = 1,
00271         .log2_chroma_h = 0,
00272         .comp = {
00273             { 0, 0, 1, 0, 7 },        /* Y */
00274             { 1, 0, 1, 0, 7 },        /* U */
00275             { 2, 0, 1, 0, 7 },        /* V */
00276         },
00277         .flags = PIX_FMT_PLANAR,
00278     },
00279     [PIX_FMT_YUVJ444P] = {
00280         .name = "yuvj444p",
00281         .nb_components = 3,
00282         .log2_chroma_w = 0,
00283         .log2_chroma_h = 0,
00284         .comp = {
00285             { 0, 0, 1, 0, 7 },        /* Y */
00286             { 1, 0, 1, 0, 7 },        /* U */
00287             { 2, 0, 1, 0, 7 },        /* V */
00288         },
00289         .flags = PIX_FMT_PLANAR,
00290     },
00291     [PIX_FMT_XVMC_MPEG2_MC] = {
00292         .name = "xvmcmc",
00293         .flags = PIX_FMT_HWACCEL,
00294     },
00295     [PIX_FMT_XVMC_MPEG2_IDCT] = {
00296         .name = "xvmcidct",
00297         .flags = PIX_FMT_HWACCEL,
00298     },
00299     [PIX_FMT_UYVY422] = {
00300         .name = "uyvy422",
00301         .nb_components = 3,
00302         .log2_chroma_w = 1,
00303         .log2_chroma_h = 0,
00304         .comp = {
00305             { 0, 1, 2, 0, 7 },        /* Y */
00306             { 0, 3, 1, 0, 7 },        /* U */
00307             { 0, 3, 3, 0, 7 },        /* V */
00308         },
00309     },
00310     [PIX_FMT_UYYVYY411] = {
00311         .name = "uyyvyy411",
00312         .nb_components = 3,
00313         .log2_chroma_w = 2,
00314         .log2_chroma_h = 0,
00315         .comp = {
00316             { 0, 3, 2, 0, 7 },        /* Y */
00317             { 0, 5, 1, 0, 7 },        /* U */
00318             { 0, 5, 4, 0, 7 },        /* V */
00319         },
00320     },
00321     [PIX_FMT_BGR8] = {
00322         .name = "bgr8",
00323         .nb_components = 3,
00324         .log2_chroma_w = 0,
00325         .log2_chroma_h = 0,
00326         .comp = {
00327             { 0, 0, 1, 0, 2 },        /* R */
00328             { 0, 0, 1, 3, 2 },        /* G */
00329             { 0, 0, 1, 6, 1 },        /* B */
00330         },
00331         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,
00332     },
00333     [PIX_FMT_BGR4] = {
00334         .name = "bgr4",
00335         .nb_components = 3,
00336         .log2_chroma_w = 0,
00337         .log2_chroma_h = 0,
00338         .comp = {
00339             { 0, 3, 4, 0, 0 },        /* R */
00340             { 0, 3, 2, 0, 1 },        /* G */
00341             { 0, 3, 1, 0, 0 },        /* B */
00342         },
00343         .flags = PIX_FMT_BITSTREAM | PIX_FMT_RGB,
00344     },
00345     [PIX_FMT_BGR4_BYTE] = {
00346         .name = "bgr4_byte",
00347         .nb_components = 3,
00348         .log2_chroma_w = 0,
00349         .log2_chroma_h = 0,
00350         .comp = {
00351             { 0, 0, 1, 0, 0 },        /* R */
00352             { 0, 0, 1, 1, 1 },        /* G */
00353             { 0, 0, 1, 3, 0 },        /* B */
00354         },
00355         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,
00356     },
00357     [PIX_FMT_RGB8] = {
00358         .name = "rgb8",
00359         .nb_components = 3,
00360         .log2_chroma_w = 0,
00361         .log2_chroma_h = 0,
00362         .comp = {
00363             { 0, 0, 1, 6, 1 },        /* R */
00364             { 0, 0, 1, 3, 2 },        /* G */
00365             { 0, 0, 1, 0, 2 },        /* B */
00366         },
00367         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,
00368     },
00369     [PIX_FMT_RGB4] = {
00370         .name = "rgb4",
00371         .nb_components = 3,
00372         .log2_chroma_w = 0,
00373         .log2_chroma_h = 0,
00374         .comp = {
00375             { 0, 3, 1, 0, 0 },        /* R */
00376             { 0, 3, 2, 0, 1 },        /* G */
00377             { 0, 3, 4, 0, 0 },        /* B */
00378         },
00379         .flags = PIX_FMT_BITSTREAM | PIX_FMT_RGB,
00380     },
00381     [PIX_FMT_RGB4_BYTE] = {
00382         .name = "rgb4_byte",
00383         .nb_components = 3,
00384         .log2_chroma_w = 0,
00385         .log2_chroma_h = 0,
00386         .comp = {
00387             { 0, 0, 1, 3, 0 },        /* R */
00388             { 0, 0, 1, 1, 1 },        /* G */
00389             { 0, 0, 1, 0, 0 },        /* B */
00390         },
00391         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,
00392     },
00393     [PIX_FMT_NV12] = {
00394         .name = "nv12",
00395         .nb_components = 3,
00396         .log2_chroma_w = 1,
00397         .log2_chroma_h = 1,
00398         .comp = {
00399             { 0, 0, 1, 0, 7 },        /* Y */
00400             { 1, 1, 1, 0, 7 },        /* U */
00401             { 1, 1, 2, 0, 7 },        /* V */
00402         },
00403         .flags = PIX_FMT_PLANAR,
00404     },
00405     [PIX_FMT_NV21] = {
00406         .name = "nv21",
00407         .nb_components = 3,
00408         .log2_chroma_w = 1,
00409         .log2_chroma_h = 1,
00410         .comp = {
00411             { 0, 0, 1, 0, 7 },        /* Y */
00412             { 1, 1, 2, 0, 7 },        /* U */
00413             { 1, 1, 1, 0, 7 },        /* V */
00414         },
00415         .flags = PIX_FMT_PLANAR,
00416     },
00417     [PIX_FMT_ARGB] = {
00418         .name = "argb",
00419         .nb_components = 4,
00420         .log2_chroma_w = 0,
00421         .log2_chroma_h = 0,
00422         .comp = {
00423             { 0, 3, 2, 0, 7 },        /* R */
00424             { 0, 3, 3, 0, 7 },        /* G */
00425             { 0, 3, 4, 0, 7 },        /* B */
00426             { 0, 3, 1, 0, 7 },        /* A */
00427         },
00428         .flags = PIX_FMT_RGB,
00429     },
00430     [PIX_FMT_RGBA] = {
00431         .name = "rgba",
00432         .nb_components = 4,
00433         .log2_chroma_w = 0,
00434         .log2_chroma_h = 0,
00435         .comp = {
00436             { 0, 3, 1, 0, 7 },        /* R */
00437             { 0, 3, 2, 0, 7 },        /* G */
00438             { 0, 3, 3, 0, 7 },        /* B */
00439             { 0, 3, 4, 0, 7 },        /* A */
00440         },
00441         .flags = PIX_FMT_RGB,
00442     },
00443     [PIX_FMT_ABGR] = {
00444         .name = "abgr",
00445         .nb_components = 4,
00446         .log2_chroma_w = 0,
00447         .log2_chroma_h = 0,
00448         .comp = {
00449             { 0, 3, 4, 0, 7 },        /* R */
00450             { 0, 3, 3, 0, 7 },        /* G */
00451             { 0, 3, 2, 0, 7 },        /* B */
00452             { 0, 3, 1, 0, 7 },        /* A */
00453         },
00454         .flags = PIX_FMT_RGB,
00455     },
00456     [PIX_FMT_BGRA] = {
00457         .name = "bgra",
00458         .nb_components = 4,
00459         .log2_chroma_w = 0,
00460         .log2_chroma_h = 0,
00461         .comp = {
00462             { 0, 3, 3, 0, 7 },        /* R */
00463             { 0, 3, 2, 0, 7 },        /* G */
00464             { 0, 3, 1, 0, 7 },        /* B */
00465             { 0, 3, 4, 0, 7 },        /* A */
00466         },
00467         .flags = PIX_FMT_RGB,
00468     },
00469     [PIX_FMT_0RGB] = {
00470         .name = "0rgb",
00471         .nb_components= 3,
00472         .log2_chroma_w= 0,
00473         .log2_chroma_h= 0,
00474         .comp = {
00475             { 0, 3, 2, 0, 7 },        /* R */
00476             { 0, 3, 3, 0, 7 },        /* G */
00477             { 0, 3, 4, 0, 7 },        /* B */
00478         },
00479         .flags = PIX_FMT_RGB,
00480     },
00481     [PIX_FMT_RGB0] = {
00482         .name = "rgb0",
00483         .nb_components= 3,
00484         .log2_chroma_w= 0,
00485         .log2_chroma_h= 0,
00486         .comp = {
00487             { 0, 3, 1, 0, 7 },        /* R */
00488             { 0, 3, 2, 0, 7 },        /* G */
00489             { 0, 3, 3, 0, 7 },        /* B */
00490             { 0, 3, 4, 0, 7 },        /* A */
00491         },
00492         .flags = PIX_FMT_RGB,
00493     },
00494     [PIX_FMT_0BGR] = {
00495         .name = "0bgr",
00496         .nb_components= 3,
00497         .log2_chroma_w= 0,
00498         .log2_chroma_h= 0,
00499         .comp = {
00500             { 0, 3, 4, 0, 7 },        /* R */
00501             { 0, 3, 3, 0, 7 },        /* G */
00502             { 0, 3, 2, 0, 7 },        /* B */
00503         },
00504         .flags = PIX_FMT_RGB,
00505     },
00506     [PIX_FMT_BGR0] = {
00507         .name = "bgr0",
00508         .nb_components= 3,
00509         .log2_chroma_w= 0,
00510         .log2_chroma_h= 0,
00511         .comp = {
00512             { 0, 3, 3, 0, 7 },        /* R */
00513             { 0, 3, 2, 0, 7 },        /* G */
00514             { 0, 3, 1, 0, 7 },        /* B */
00515             { 0, 3, 4, 0, 7 },        /* A */
00516         },
00517         .flags = PIX_FMT_RGB,
00518     },
00519     [PIX_FMT_GRAY16BE] = {
00520         .name = "gray16be",
00521         .nb_components = 1,
00522         .log2_chroma_w = 0,
00523         .log2_chroma_h = 0,
00524         .comp = {
00525             { 0, 1, 1, 0, 15 },       /* Y */
00526         },
00527         .flags = PIX_FMT_BE,
00528     },
00529     [PIX_FMT_GRAY16LE] = {
00530         .name = "gray16le",
00531         .nb_components = 1,
00532         .log2_chroma_w = 0,
00533         .log2_chroma_h = 0,
00534         .comp = {
00535             { 0, 1, 1, 0, 15 },       /* Y */
00536         },
00537     },
00538     [PIX_FMT_YUV440P] = {
00539         .name = "yuv440p",
00540         .nb_components = 3,
00541         .log2_chroma_w = 0,
00542         .log2_chroma_h = 1,
00543         .comp = {
00544             { 0, 0, 1, 0, 7 },        /* Y */
00545             { 1, 0, 1, 0, 7 },        /* U */
00546             { 2, 0, 1, 0, 7 },        /* V */
00547         },
00548         .flags = PIX_FMT_PLANAR,
00549     },
00550     [PIX_FMT_YUVJ440P] = {
00551         .name = "yuvj440p",
00552         .nb_components = 3,
00553         .log2_chroma_w = 0,
00554         .log2_chroma_h = 1,
00555         .comp = {
00556             { 0, 0, 1, 0, 7 },        /* Y */
00557             { 1, 0, 1, 0, 7 },        /* U */
00558             { 2, 0, 1, 0, 7 },        /* V */
00559         },
00560         .flags = PIX_FMT_PLANAR,
00561     },
00562     [PIX_FMT_YUVA420P] = {
00563         .name = "yuva420p",
00564         .nb_components = 4,
00565         .log2_chroma_w = 1,
00566         .log2_chroma_h = 1,
00567         .comp = {
00568             { 0, 0, 1, 0, 7 },        /* Y */
00569             { 1, 0, 1, 0, 7 },        /* U */
00570             { 2, 0, 1, 0, 7 },        /* V */
00571             { 3, 0, 1, 0, 7 },        /* A */
00572         },
00573         .flags = PIX_FMT_PLANAR,
00574     },
00575     [PIX_FMT_YUVA422P] = {
00576         .name = "yuva422p",
00577         .nb_components = 4,
00578         .log2_chroma_w = 1,
00579         .log2_chroma_h = 0,
00580         .comp = {
00581             { 0, 0, 1, 0, 7 },        /* Y */
00582             { 1, 0, 1, 0, 7 },        /* U */
00583             { 2, 0, 1, 0, 7 },        /* V */
00584             { 3, 0, 1, 0, 7 },        /* A */
00585         },
00586         .flags = PIX_FMT_PLANAR,
00587     },
00588     [PIX_FMT_YUVA444P] = {
00589         .name = "yuva444p",
00590         .nb_components = 4,
00591         .log2_chroma_w = 0,
00592         .log2_chroma_h = 0,
00593         .comp = {
00594             { 0, 0, 1, 0, 7 },        /* Y */
00595             { 1, 0, 1, 0, 7 },        /* U */
00596             { 2, 0, 1, 0, 7 },        /* V */
00597             { 3, 0, 1, 0, 7 },        /* A */
00598         },
00599         .flags = PIX_FMT_PLANAR,
00600     },
00601     [PIX_FMT_VDPAU_H264] = {
00602         .name = "vdpau_h264",
00603         .log2_chroma_w = 1,
00604         .log2_chroma_h = 1,
00605         .flags = PIX_FMT_HWACCEL,
00606     },
00607     [PIX_FMT_VDPAU_MPEG1] = {
00608         .name = "vdpau_mpeg1",
00609         .log2_chroma_w = 1,
00610         .log2_chroma_h = 1,
00611         .flags = PIX_FMT_HWACCEL,
00612     },
00613     [PIX_FMT_VDPAU_MPEG2] = {
00614         .name = "vdpau_mpeg2",
00615         .log2_chroma_w = 1,
00616         .log2_chroma_h = 1,
00617         .flags = PIX_FMT_HWACCEL,
00618     },
00619     [PIX_FMT_VDPAU_WMV3] = {
00620         .name = "vdpau_wmv3",
00621         .log2_chroma_w = 1,
00622         .log2_chroma_h = 1,
00623         .flags = PIX_FMT_HWACCEL,
00624     },
00625     [PIX_FMT_VDPAU_VC1] = {
00626         .name = "vdpau_vc1",
00627         .log2_chroma_w = 1,
00628         .log2_chroma_h = 1,
00629         .flags = PIX_FMT_HWACCEL,
00630     },
00631     [PIX_FMT_VDPAU_MPEG4] = {
00632         .name = "vdpau_mpeg4",
00633         .log2_chroma_w = 1,
00634         .log2_chroma_h = 1,
00635         .flags = PIX_FMT_HWACCEL,
00636     },
00637     [PIX_FMT_RGB48BE] = {
00638         .name = "rgb48be",
00639         .nb_components = 3,
00640         .log2_chroma_w = 0,
00641         .log2_chroma_h = 0,
00642         .comp = {
00643             { 0, 5, 1, 0, 15 },       /* R */
00644             { 0, 5, 3, 0, 15 },       /* G */
00645             { 0, 5, 5, 0, 15 },       /* B */
00646         },
00647         .flags = PIX_FMT_RGB | PIX_FMT_BE,
00648     },
00649     [PIX_FMT_RGB48LE] = {
00650         .name = "rgb48le",
00651         .nb_components = 3,
00652         .log2_chroma_w = 0,
00653         .log2_chroma_h = 0,
00654         .comp = {
00655             { 0, 5, 1, 0, 15 },       /* R */
00656             { 0, 5, 3, 0, 15 },       /* G */
00657             { 0, 5, 5, 0, 15 },       /* B */
00658         },
00659         .flags = PIX_FMT_RGB,
00660     },
00661     [PIX_FMT_RGBA64BE] = {
00662         .name = "rgba64be",
00663         .nb_components= 4,
00664         .log2_chroma_w= 0,
00665         .log2_chroma_h= 0,
00666         .comp = {
00667             { 0, 7, 1, 0, 15 },       /* R */
00668             { 0, 7, 3, 0, 15 },       /* G */
00669             { 0, 7, 5, 0, 15 },       /* B */
00670             { 0, 7, 7, 0, 15 },       /* A */
00671         },
00672         .flags = PIX_FMT_RGB | PIX_FMT_BE,
00673     },
00674     [PIX_FMT_RGBA64LE] = {
00675         .name = "rgba64le",
00676         .nb_components= 4,
00677         .log2_chroma_w= 0,
00678         .log2_chroma_h= 0,
00679         .comp = {
00680             { 0, 7, 1, 0, 15 },       /* R */
00681             { 0, 7, 3, 0, 15 },       /* G */
00682             { 0, 7, 5, 0, 15 },       /* B */
00683             { 0, 7, 7, 0, 15 },       /* A */
00684         },
00685         .flags = PIX_FMT_RGB,
00686     },
00687     [PIX_FMT_RGB565BE] = {
00688         .name = "rgb565be",
00689         .nb_components = 3,
00690         .log2_chroma_w = 0,
00691         .log2_chroma_h = 0,
00692         .comp = {
00693             { 0, 1, 0, 3, 4 },        /* R */
00694             { 0, 1, 1, 5, 5 },        /* G */
00695             { 0, 1, 1, 0, 4 },        /* B */
00696         },
00697         .flags = PIX_FMT_BE | PIX_FMT_RGB,
00698     },
00699     [PIX_FMT_RGB565LE] = {
00700         .name = "rgb565le",
00701         .nb_components = 3,
00702         .log2_chroma_w = 0,
00703         .log2_chroma_h = 0,
00704         .comp = {
00705             { 0, 1, 2, 3, 4 },        /* R */
00706             { 0, 1, 1, 5, 5 },        /* G */
00707             { 0, 1, 1, 0, 4 },        /* B */
00708         },
00709         .flags = PIX_FMT_RGB,
00710     },
00711     [PIX_FMT_RGB555BE] = {
00712         .name = "rgb555be",
00713         .nb_components = 3,
00714         .log2_chroma_w = 0,
00715         .log2_chroma_h = 0,
00716         .comp = {
00717             { 0, 1, 0, 2, 4 },        /* R */
00718             { 0, 1, 1, 5, 4 },        /* G */
00719             { 0, 1, 1, 0, 4 },        /* B */
00720         },
00721         .flags = PIX_FMT_BE | PIX_FMT_RGB,
00722     },
00723     [PIX_FMT_RGB555LE] = {
00724         .name = "rgb555le",
00725         .nb_components = 3,
00726         .log2_chroma_w = 0,
00727         .log2_chroma_h = 0,
00728         .comp = {
00729             { 0, 1, 2, 2, 4 },        /* R */
00730             { 0, 1, 1, 5, 4 },        /* G */
00731             { 0, 1, 1, 0, 4 },        /* B */
00732         },
00733         .flags = PIX_FMT_RGB,
00734     },
00735     [PIX_FMT_RGB444BE] = {
00736         .name = "rgb444be",
00737         .nb_components = 3,
00738         .log2_chroma_w = 0,
00739         .log2_chroma_h = 0,
00740         .comp = {
00741             { 0, 1, 0, 0, 3 },        /* R */
00742             { 0, 1, 1, 4, 3 },        /* G */
00743             { 0, 1, 1, 0, 3 },        /* B */
00744         },
00745         .flags = PIX_FMT_BE | PIX_FMT_RGB,
00746     },
00747     [PIX_FMT_RGB444LE] = {
00748         .name = "rgb444le",
00749         .nb_components = 3,
00750         .log2_chroma_w = 0,
00751         .log2_chroma_h = 0,
00752         .comp = {
00753             { 0, 1, 2, 0, 3 },        /* R */
00754             { 0, 1, 1, 4, 3 },        /* G */
00755             { 0, 1, 1, 0, 3 },        /* B */
00756         },
00757         .flags = PIX_FMT_RGB,
00758     },
00759     [PIX_FMT_BGR48BE] = {
00760         .name = "bgr48be",
00761         .nb_components = 3,
00762         .log2_chroma_w = 0,
00763         .log2_chroma_h = 0,
00764         .comp = {
00765             { 0, 5, 5, 0, 15 },       /* R */
00766             { 0, 5, 3, 0, 15 },       /* G */
00767             { 0, 5, 1, 0, 15 },       /* B */
00768         },
00769         .flags = PIX_FMT_BE | PIX_FMT_RGB,
00770     },
00771     [PIX_FMT_BGR48LE] = {
00772         .name = "bgr48le",
00773         .nb_components = 3,
00774         .log2_chroma_w = 0,
00775         .log2_chroma_h = 0,
00776         .comp = {
00777             { 0, 5, 5, 0, 15 },       /* R */
00778             { 0, 5, 3, 0, 15 },       /* G */
00779             { 0, 5, 1, 0, 15 },       /* B */
00780         },
00781         .flags = PIX_FMT_RGB,
00782     },
00783     [PIX_FMT_BGRA64BE] = {
00784         .name = "bgra64be",
00785         .nb_components= 4,
00786         .log2_chroma_w= 0,
00787         .log2_chroma_h= 0,
00788         .comp = {
00789             { 0, 7, 5, 0, 15 },       /* R */
00790             { 0, 7, 3, 0, 15 },       /* G */
00791             { 0, 7, 1, 0, 15 },       /* B */
00792             { 0, 7, 7, 0, 15 },       /* A */
00793         },
00794         .flags = PIX_FMT_BE,
00795     },
00796     [PIX_FMT_BGRA64LE] = {
00797         .name = "bgra64le",
00798         .nb_components= 4,
00799         .log2_chroma_w= 0,
00800         .log2_chroma_h= 0,
00801         .comp = {
00802             { 0, 7, 5, 0, 15 },       /* R */
00803             { 0, 7, 3, 0, 15 },       /* G */
00804             { 0, 7, 1, 0, 15 },       /* B */
00805             { 0, 7, 7, 0, 15 },       /* A */
00806         },
00807     },
00808     [PIX_FMT_BGR565BE] = {
00809         .name = "bgr565be",
00810         .nb_components = 3,
00811         .log2_chroma_w = 0,
00812         .log2_chroma_h = 0,
00813         .comp = {
00814             { 0, 1, 1, 0, 4 },        /* R */
00815             { 0, 1, 1, 5, 5 },        /* G */
00816             { 0, 1, 0, 3, 4 },        /* B */
00817         },
00818         .flags = PIX_FMT_BE | PIX_FMT_RGB,
00819     },
00820     [PIX_FMT_BGR565LE] = {
00821         .name = "bgr565le",
00822         .nb_components = 3,
00823         .log2_chroma_w = 0,
00824         .log2_chroma_h = 0,
00825         .comp = {
00826             { 0, 1, 1, 0, 4 },        /* R */
00827             { 0, 1, 1, 5, 5 },        /* G */
00828             { 0, 1, 2, 3, 4 },        /* B */
00829         },
00830         .flags = PIX_FMT_RGB,
00831     },
00832     [PIX_FMT_BGR555BE] = {
00833         .name = "bgr555be",
00834         .nb_components = 3,
00835         .log2_chroma_w = 0,
00836         .log2_chroma_h = 0,
00837         .comp = {
00838             { 0, 1, 1, 0, 4 },       /* R */
00839             { 0, 1, 1, 5, 4 },       /* G */
00840             { 0, 1, 0, 2, 4 },       /* B */
00841         },
00842         .flags = PIX_FMT_BE | PIX_FMT_RGB,
00843      },
00844     [PIX_FMT_BGR555LE] = {
00845         .name = "bgr555le",
00846         .nb_components = 3,
00847         .log2_chroma_w = 0,
00848         .log2_chroma_h = 0,
00849         .comp = {
00850             { 0, 1, 1, 0, 4 },        /* R */
00851             { 0, 1, 1, 5, 4 },        /* G */
00852             { 0, 1, 2, 2, 4 },        /* B */
00853         },
00854         .flags = PIX_FMT_RGB,
00855     },
00856     [PIX_FMT_BGR444BE] = {
00857         .name = "bgr444be",
00858         .nb_components = 3,
00859         .log2_chroma_w = 0,
00860         .log2_chroma_h = 0,
00861         .comp = {
00862             { 0, 1, 1, 0, 3 },       /* R */
00863             { 0, 1, 1, 4, 3 },       /* G */
00864             { 0, 1, 0, 0, 3 },       /* B */
00865         },
00866         .flags = PIX_FMT_BE | PIX_FMT_RGB,
00867      },
00868     [PIX_FMT_BGR444LE] = {
00869         .name = "bgr444le",
00870         .nb_components = 3,
00871         .log2_chroma_w = 0,
00872         .log2_chroma_h = 0,
00873         .comp = {
00874             { 0, 1, 1, 0, 3 },        /* R */
00875             { 0, 1, 1, 4, 3 },        /* G */
00876             { 0, 1, 2, 0, 3 },        /* B */
00877         },
00878         .flags = PIX_FMT_RGB,
00879     },
00880     [PIX_FMT_VAAPI_MOCO] = {
00881         .name = "vaapi_moco",
00882         .log2_chroma_w = 1,
00883         .log2_chroma_h = 1,
00884         .flags = PIX_FMT_HWACCEL,
00885     },
00886     [PIX_FMT_VAAPI_IDCT] = {
00887         .name = "vaapi_idct",
00888         .log2_chroma_w = 1,
00889         .log2_chroma_h = 1,
00890         .flags = PIX_FMT_HWACCEL,
00891     },
00892     [PIX_FMT_VAAPI_VLD] = {
00893         .name = "vaapi_vld",
00894         .log2_chroma_w = 1,
00895         .log2_chroma_h = 1,
00896         .flags = PIX_FMT_HWACCEL,
00897     },
00898     [PIX_FMT_YUV420P9LE] = {
00899         .name = "yuv420p9le",
00900         .nb_components = 3,
00901         .log2_chroma_w = 1,
00902         .log2_chroma_h = 1,
00903         .comp = {
00904             { 0, 1, 1, 0, 8 },        /* Y */
00905             { 1, 1, 1, 0, 8 },        /* U */
00906             { 2, 1, 1, 0, 8 },        /* V */
00907         },
00908         .flags = PIX_FMT_PLANAR,
00909     },
00910     [PIX_FMT_YUV420P9BE] = {
00911         .name = "yuv420p9be",
00912         .nb_components = 3,
00913         .log2_chroma_w = 1,
00914         .log2_chroma_h = 1,
00915         .comp = {
00916             { 0, 1, 1, 0, 8 },        /* Y */
00917             { 1, 1, 1, 0, 8 },        /* U */
00918             { 2, 1, 1, 0, 8 },        /* V */
00919         },
00920         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
00921     },
00922     [PIX_FMT_YUV420P10LE] = {
00923         .name = "yuv420p10le",
00924         .nb_components = 3,
00925         .log2_chroma_w = 1,
00926         .log2_chroma_h = 1,
00927         .comp = {
00928             { 0, 1, 1, 0, 9 },        /* Y */
00929             { 1, 1, 1, 0, 9 },        /* U */
00930             { 2, 1, 1, 0, 9 },        /* V */
00931         },
00932         .flags = PIX_FMT_PLANAR,
00933     },
00934     [PIX_FMT_YUV420P10BE] = {
00935         .name = "yuv420p10be",
00936         .nb_components = 3,
00937         .log2_chroma_w = 1,
00938         .log2_chroma_h = 1,
00939         .comp = {
00940             { 0, 1, 1, 0, 9 },        /* Y */
00941             { 1, 1, 1, 0, 9 },        /* U */
00942             { 2, 1, 1, 0, 9 },        /* V */
00943         },
00944         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
00945     },
00946     [PIX_FMT_YUV420P16LE] = {
00947         .name = "yuv420p16le",
00948         .nb_components = 3,
00949         .log2_chroma_w = 1,
00950         .log2_chroma_h = 1,
00951         .comp = {
00952             { 0, 1, 1, 0, 15 },        /* Y */
00953             { 1, 1, 1, 0, 15 },        /* U */
00954             { 2, 1, 1, 0, 15 },        /* V */
00955         },
00956         .flags = PIX_FMT_PLANAR,
00957     },
00958     [PIX_FMT_YUV420P16BE] = {
00959         .name = "yuv420p16be",
00960         .nb_components = 3,
00961         .log2_chroma_w = 1,
00962         .log2_chroma_h = 1,
00963         .comp = {
00964             { 0, 1, 1, 0, 15 },        /* Y */
00965             { 1, 1, 1, 0, 15 },        /* U */
00966             { 2, 1, 1, 0, 15 },        /* V */
00967         },
00968         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
00969     },
00970     [PIX_FMT_YUV422P9LE] = {
00971         .name = "yuv422p9le",
00972         .nb_components = 3,
00973         .log2_chroma_w = 1,
00974         .log2_chroma_h = 0,
00975         .comp = {
00976             { 0, 1, 1, 0, 8 },        /* Y */
00977             { 1, 1, 1, 0, 8 },        /* U */
00978             { 2, 1, 1, 0, 8 },        /* V */
00979         },
00980         .flags = PIX_FMT_PLANAR,
00981     },
00982     [PIX_FMT_YUV422P9BE] = {
00983         .name = "yuv422p9be",
00984         .nb_components = 3,
00985         .log2_chroma_w = 1,
00986         .log2_chroma_h = 0,
00987         .comp = {
00988             { 0, 1, 1, 0, 8 },        /* Y */
00989             { 1, 1, 1, 0, 8 },        /* U */
00990             { 2, 1, 1, 0, 8 },        /* V */
00991         },
00992         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
00993     },
00994     [PIX_FMT_YUV422P10LE] = {
00995         .name = "yuv422p10le",
00996         .nb_components = 3,
00997         .log2_chroma_w = 1,
00998         .log2_chroma_h = 0,
00999         .comp = {
01000             { 0, 1, 1, 0, 9 },        /* Y */
01001             { 1, 1, 1, 0, 9 },        /* U */
01002             { 2, 1, 1, 0, 9 },        /* V */
01003         },
01004         .flags = PIX_FMT_PLANAR,
01005     },
01006     [PIX_FMT_YUV422P10BE] = {
01007         .name = "yuv422p10be",
01008         .nb_components = 3,
01009         .log2_chroma_w = 1,
01010         .log2_chroma_h = 0,
01011         .comp = {
01012             { 0, 1, 1, 0, 9 },        /* Y */
01013             { 1, 1, 1, 0, 9 },        /* U */
01014             { 2, 1, 1, 0, 9 },        /* V */
01015         },
01016         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
01017     },
01018     [PIX_FMT_YUV422P16LE] = {
01019         .name = "yuv422p16le",
01020         .nb_components = 3,
01021         .log2_chroma_w = 1,
01022         .log2_chroma_h = 0,
01023         .comp = {
01024             { 0, 1, 1, 0, 15 },        /* Y */
01025             { 1, 1, 1, 0, 15 },        /* U */
01026             { 2, 1, 1, 0, 15 },        /* V */
01027         },
01028         .flags = PIX_FMT_PLANAR,
01029     },
01030     [PIX_FMT_YUV422P16BE] = {
01031         .name = "yuv422p16be",
01032         .nb_components = 3,
01033         .log2_chroma_w = 1,
01034         .log2_chroma_h = 0,
01035         .comp = {
01036             { 0, 1, 1, 0, 15 },        /* Y */
01037             { 1, 1, 1, 0, 15 },        /* U */
01038             { 2, 1, 1, 0, 15 },        /* V */
01039         },
01040         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
01041     },
01042     [PIX_FMT_YUV444P16LE] = {
01043         .name = "yuv444p16le",
01044         .nb_components = 3,
01045         .log2_chroma_w = 0,
01046         .log2_chroma_h = 0,
01047         .comp = {
01048             { 0, 1, 1, 0, 15 },        /* Y */
01049             { 1, 1, 1, 0, 15 },        /* U */
01050             { 2, 1, 1, 0, 15 },        /* V */
01051         },
01052         .flags = PIX_FMT_PLANAR,
01053     },
01054     [PIX_FMT_YUV444P16BE] = {
01055         .name = "yuv444p16be",
01056         .nb_components = 3,
01057         .log2_chroma_w = 0,
01058         .log2_chroma_h = 0,
01059         .comp = {
01060             { 0, 1, 1, 0, 15 },        /* Y */
01061             { 1, 1, 1, 0, 15 },        /* U */
01062             { 2, 1, 1, 0, 15 },        /* V */
01063         },
01064         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
01065     },
01066     [PIX_FMT_YUV444P10LE] = {
01067         .name = "yuv444p10le",
01068         .nb_components = 3,
01069         .log2_chroma_w = 0,
01070         .log2_chroma_h = 0,
01071         .comp = {
01072             { 0, 1, 1, 0, 9 },        /* Y */
01073             { 1, 1, 1, 0, 9 },        /* U */
01074             { 2, 1, 1, 0, 9 },        /* V */
01075         },
01076         .flags = PIX_FMT_PLANAR,
01077     },
01078     [PIX_FMT_YUV444P10BE] = {
01079         .name = "yuv444p10be",
01080         .nb_components = 3,
01081         .log2_chroma_w = 0,
01082         .log2_chroma_h = 0,
01083         .comp = {
01084             { 0, 1, 1, 0, 9 },        /* Y */
01085             { 1, 1, 1, 0, 9 },        /* U */
01086             { 2, 1, 1, 0, 9 },        /* V */
01087         },
01088         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
01089     },
01090     [PIX_FMT_YUV444P9LE] = {
01091         .name = "yuv444p9le",
01092         .nb_components = 3,
01093         .log2_chroma_w = 0,
01094         .log2_chroma_h = 0,
01095         .comp = {
01096             { 0, 1, 1, 0, 8 },        /* Y */
01097             { 1, 1, 1, 0, 8 },        /* U */
01098             { 2, 1, 1, 0, 8 },        /* V */
01099         },
01100         .flags = PIX_FMT_PLANAR,
01101     },
01102     [PIX_FMT_YUV444P9BE] = {
01103         .name = "yuv444p9be",
01104         .nb_components = 3,
01105         .log2_chroma_w = 0,
01106         .log2_chroma_h = 0,
01107         .comp = {
01108             { 0, 1, 1, 0, 8 },        /* Y */
01109             { 1, 1, 1, 0, 8 },        /* U */
01110             { 2, 1, 1, 0, 8 },        /* V */
01111         },
01112         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
01113     },
01114     [PIX_FMT_DXVA2_VLD] = {
01115         .name = "dxva2_vld",
01116         .log2_chroma_w = 1,
01117         .log2_chroma_h = 1,
01118         .flags = PIX_FMT_HWACCEL,
01119     },
01120     [PIX_FMT_VDA_VLD] = {
01121         .name = "vda_vld",
01122         .log2_chroma_w = 1,
01123         .log2_chroma_h = 1,
01124         .flags = PIX_FMT_HWACCEL,
01125     },
01126     [PIX_FMT_GRAY8A] = {
01127         .name = "gray8a",
01128         .nb_components = 2,
01129         .comp = {
01130             { 0, 1, 1, 0, 7 },        /* Y */
01131             { 0, 1, 2, 0, 7 },        /* A */
01132         },
01133     },
01134     [PIX_FMT_GBRP] = {
01135         .name = "gbrp",
01136         .nb_components = 3,
01137         .log2_chroma_w = 0,
01138         .log2_chroma_h = 0,
01139         .comp = {
01140             { 2, 0, 1, 0, 7 },        /* R */
01141             { 0, 0, 1, 0, 7 },        /* G */
01142             { 1, 0, 1, 0, 7 },        /* B */
01143         },
01144         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,
01145     },
01146     [PIX_FMT_GBRP9LE] = {
01147         .name = "gbrp9le",
01148         .nb_components = 3,
01149         .log2_chroma_w = 0,
01150         .log2_chroma_h = 0,
01151         .comp = {
01152             { 2, 1, 1, 0, 8 },        /* R */
01153             { 0, 1, 1, 0, 8 },        /* G */
01154             { 1, 1, 1, 0, 8 },        /* B */
01155         },
01156         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,
01157     },
01158     [PIX_FMT_GBRP9BE] = {
01159         .name = "gbrp9be",
01160         .nb_components = 3,
01161         .log2_chroma_w = 0,
01162         .log2_chroma_h = 0,
01163         .comp = {
01164             { 2, 1, 1, 0, 8 },        /* R */
01165             { 0, 1, 1, 0, 8 },        /* G */
01166             { 1, 1, 1, 0, 8 },        /* B */
01167         },
01168         .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,
01169     },
01170     [PIX_FMT_GBRP10LE] = {
01171         .name = "gbrp10le",
01172         .nb_components = 3,
01173         .log2_chroma_w = 0,
01174         .log2_chroma_h = 0,
01175         .comp = {
01176             { 2, 1, 1, 0, 9 },        /* R */
01177             { 0, 1, 1, 0, 9 },        /* G */
01178             { 1, 1, 1, 0, 9 },        /* B */
01179         },
01180         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,
01181     },
01182     [PIX_FMT_GBRP10BE] = {
01183         .name = "gbrp10be",
01184         .nb_components = 3,
01185         .log2_chroma_w = 0,
01186         .log2_chroma_h = 0,
01187         .comp = {
01188             { 2, 1, 1, 0, 9 },        /* R */
01189             { 0, 1, 1, 0, 9 },        /* G */
01190             { 1, 1, 1, 0, 9 },        /* B */
01191         },
01192         .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,
01193     },
01194     [PIX_FMT_GBRP16LE] = {
01195         .name = "gbrp16le",
01196         .nb_components = 3,
01197         .log2_chroma_w = 0,
01198         .log2_chroma_h = 0,
01199         .comp = {
01200             { 2, 1, 1, 0, 15 },       /* R */
01201             { 0, 1, 1, 0, 15 },       /* G */
01202             { 1, 1, 1, 0, 15 },       /* B */
01203         },
01204         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,
01205     },
01206     [PIX_FMT_GBRP16BE] = {
01207         .name = "gbrp16be",
01208         .nb_components = 3,
01209         .log2_chroma_w = 0,
01210         .log2_chroma_h = 0,
01211         .comp = {
01212             { 2, 1, 1, 0, 15 },       /* R */
01213             { 0, 1, 1, 0, 15 },       /* G */
01214             { 1, 1, 1, 0, 15 },       /* B */
01215         },
01216         .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,
01217     },
01218 };
01219 
01220 static enum PixelFormat get_pix_fmt_internal(const char *name)
01221 {
01222     enum PixelFormat pix_fmt;
01223 
01224     for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
01225         if (av_pix_fmt_descriptors[pix_fmt].name &&
01226             !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
01227             return pix_fmt;
01228 
01229     return PIX_FMT_NONE;
01230 }
01231 
01232 const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt)
01233 {
01234     return (unsigned)pix_fmt < PIX_FMT_NB ?
01235         av_pix_fmt_descriptors[pix_fmt].name : NULL;
01236 }
01237 
01238 #if HAVE_BIGENDIAN
01239 #   define X_NE(be, le) be
01240 #else
01241 #   define X_NE(be, le) le
01242 #endif
01243 
01244 enum PixelFormat av_get_pix_fmt(const char *name)
01245 {
01246     enum PixelFormat pix_fmt;
01247 
01248     if (!strcmp(name, "rgb32"))
01249         name = X_NE("argb", "bgra");
01250     else if (!strcmp(name, "bgr32"))
01251         name = X_NE("abgr", "rgba");
01252 
01253     pix_fmt = get_pix_fmt_internal(name);
01254     if (pix_fmt == PIX_FMT_NONE) {
01255         char name2[32];
01256 
01257         snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
01258         pix_fmt = get_pix_fmt_internal(name2);
01259     }
01260     return pix_fmt;
01261 }
01262 
01263 int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
01264 {
01265     int c, bits = 0;
01266     int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
01267 
01268     for (c = 0; c < pixdesc->nb_components; c++) {
01269         int s = c == 1 || c == 2 ? 0 : log2_pixels;
01270         bits += (pixdesc->comp[c].depth_minus1 + 1) << s;
01271     }
01272 
01273     return bits >> log2_pixels;
01274 }
01275 
01276 char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
01277 {
01278     /* print header */
01279     if (pix_fmt < 0) {
01280        snprintf (buf, buf_size, "name" " nb_components" " nb_bits");
01281     } else {
01282         const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];
01283         snprintf(buf, buf_size, "%-11s %7d %10d", pixdesc->name,
01284                  pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));
01285     }
01286 
01287     return buf;
01288 }