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FFmpeg/libavutil/pixdesc.c

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  1. /*

  2.  * pixel format descriptor

  3.  * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>

  4.  *

  5.  * This file is part of Libav.

  6.  *

  7.  * Libav 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.  * Libav 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 Libav; 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,

  31.                         int read_pal_component)

  32. {

  33.     AVComponentDescriptor comp = desc->comp[c];

  34.     int plane = comp.plane;

  35.     int depth = comp.depth_minus1 + 1;

  36.     int mask  = (1 << depth) - 1;

  37.     int shift = comp.shift;

  38.     int step  = comp.step_minus1 + 1;

  39.     int flags = desc->flags;

  40. 

  41.     if (flags & PIX_FMT_BITSTREAM) {

  42.         int skip = x * step + comp.offset_plus1 - 1;

  43.         const uint8_t *p = data[plane] + y * linesize[plane] + (skip >> 3);

  44.         int shift = 8 - depth - (skip & 7);

  45. 

  46.         while (w--) {

  47.             int val = (*p >> shift) & mask;

  48.             if (read_pal_component)

  49.                 val = data[1][4*val + c];

  50.             shift -= step;

  51.             p -= shift >> 3;

  52.             shift &= 7;

  53.             *dst++ = val;

  54.         }

  55.     } else {

  56.         const uint8_t *p = data[plane] + y * linesize[plane] + x * step + comp.offset_plus1 - 1;

  57.         int is_8bit = shift + depth <= 8;

  58. 

  59.         if (is_8bit)

  60.             p += !!(flags & PIX_FMT_BE);

  61. 

  62.         while (w--) {

  63.             int val = is_8bit ? *p :

  64.                 flags & PIX_FMT_BE ? AV_RB16(p) : AV_RL16(p);

  65.             val = (val >> shift) & mask;

  66.             if (read_pal_component)

  67.                 val = data[1][4 * val + c];

  68.             p += step;

  69.             *dst++ = val;

  70.         }

  71.     }

  72. }

  73. 

  74. void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],

  75.                          const AVPixFmtDescriptor *desc, int x, int y, int c, int w)

  76. {

  77.     AVComponentDescriptor comp = desc->comp[c];

  78.     int plane = comp.plane;

  79.     int depth = comp.depth_minus1 + 1;

  80.     int step  = comp.step_minus1 + 1;

  81.     int flags = desc->flags;

  82. 

  83.     if (flags & PIX_FMT_BITSTREAM) {

  84.         int skip = x * step + comp.offset_plus1 - 1;

  85.         uint8_t *p = data[plane] + y * linesize[plane] + (skip >> 3);

  86.         int shift = 8 - depth - (skip & 7);

  87. 

  88.         while (w--) {

  89.             *p |= *src++ << shift;

  90.             shift -= step;

  91.             p -= shift >> 3;

  92.             shift &= 7;

  93.         }

  94.     } else {

  95.         int shift = comp.shift;

  96.         uint8_t *p = data[plane] + y * linesize[plane] + x * step + comp.offset_plus1 - 1;

  97. 

  98.         if (shift + depth <= 8) {

  99.             p += !!(flags & PIX_FMT_BE);

  100.             while (w--) {

  101.                 *p |= (*src++ << shift);

  102.                 p += step;

  103.             }

  104.         } else {

  105.             while (w--) {

  106.                 if (flags & PIX_FMT_BE) {

  107.                     uint16_t val = AV_RB16(p) | (*src++ << shift);

  108.                     AV_WB16(p, val);

  109.                 } else {

  110.                     uint16_t val = AV_RL16(p) | (*src++ << shift);

  111.                     AV_WL16(p, val);

  112.                 }

  113.                 p += step;

  114.             }

  115.         }

  116.     }

  117. }

  118. 

  119. const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {

  120.     [PIX_FMT_YUV420P] = {

  121.         .name = "yuv420p",

  122.         .nb_components = 3,

  123.         .log2_chroma_w = 1,

  124.         .log2_chroma_h = 1,

  125.         .comp = {

  126.             { 0, 0, 1, 0, 7 },        /* Y */

  127.             { 1, 0, 1, 0, 7 },        /* U */

  128.             { 2, 0, 1, 0, 7 },        /* V */

  129.         },

  130.         .flags = PIX_FMT_PLANAR,

  131.     },

  132.     [PIX_FMT_YUYV422] = {

  133.         .name = "yuyv422",

  134.         .nb_components = 3,

  135.         .log2_chroma_w = 1,

  136.         .log2_chroma_h = 0,

  137.         .comp = {

  138.             { 0, 1, 1, 0, 7 },        /* Y */

  139.             { 0, 3, 2, 0, 7 },        /* U */

  140.             { 0, 3, 4, 0, 7 },        /* V */

  141.         },

  142.     },

  143.     [PIX_FMT_RGB24] = {

  144.         .name = "rgb24",

  145.         .nb_components = 3,

  146.         .log2_chroma_w = 0,

  147.         .log2_chroma_h = 0,

  148.         .comp = {

  149.             { 0, 2, 1, 0, 7 },        /* R */

  150.             { 0, 2, 2, 0, 7 },        /* G */

  151.             { 0, 2, 3, 0, 7 },        /* B */

  152.         },

  153.         .flags = PIX_FMT_RGB,

  154.     },

  155.     [PIX_FMT_BGR24] = {

  156.         .name = "bgr24",

  157.         .nb_components = 3,

  158.         .log2_chroma_w = 0,

  159.         .log2_chroma_h = 0,

  160.         .comp = {

  161.             { 0, 2, 1, 0, 7 },        /* B */

  162.             { 0, 2, 2, 0, 7 },        /* G */

  163.             { 0, 2, 3, 0, 7 },        /* R */

  164.         },

  165.         .flags = PIX_FMT_RGB,

  166.     },

  167.     [PIX_FMT_YUV422P] = {

  168.         .name = "yuv422p",

  169.         .nb_components = 3,

  170.         .log2_chroma_w = 1,

  171.         .log2_chroma_h = 0,

  172.         .comp = {

  173.             { 0, 0, 1, 0, 7 },        /* Y */

  174.             { 1, 0, 1, 0, 7 },        /* U */

  175.             { 2, 0, 1, 0, 7 },        /* V */

  176.         },

  177.         .flags = PIX_FMT_PLANAR,

  178.     },

  179.     [PIX_FMT_YUV444P] = {

  180.         .name = "yuv444p",

  181.         .nb_components = 3,

  182.         .log2_chroma_w = 0,

  183.         .log2_chroma_h = 0,

  184.         .comp = {

  185.             { 0, 0, 1, 0, 7 },        /* Y */

  186.             { 1, 0, 1, 0, 7 },        /* U */

  187.             { 2, 0, 1, 0, 7 },        /* V */

  188.         },

  189.         .flags = PIX_FMT_PLANAR,

  190.     },

  191.     [PIX_FMT_YUV410P] = {

  192.         .name = "yuv410p",

  193.         .nb_components = 3,

  194.         .log2_chroma_w = 2,

  195.         .log2_chroma_h = 2,

  196.         .comp = {

  197.             { 0, 0, 1, 0, 7 },        /* Y */

  198.             { 1, 0, 1, 0, 7 },        /* U */

  199.             { 2, 0, 1, 0, 7 },        /* V */

  200.         },

  201.         .flags = PIX_FMT_PLANAR,

  202.     },

  203.     [PIX_FMT_YUV411P] = {

  204.         .name = "yuv411p",

  205.         .nb_components = 3,

  206.         .log2_chroma_w = 2,

  207.         .log2_chroma_h = 0,

  208.         .comp = {

  209.             { 0, 0, 1, 0, 7 },        /* Y */

  210.             { 1, 0, 1, 0, 7 },        /* U */

  211.             { 2, 0, 1, 0, 7 },        /* V */

  212.         },

  213.         .flags = PIX_FMT_PLANAR,

  214.     },

  215.     [PIX_FMT_GRAY8] = {

  216.         .name = "gray",

  217.         .nb_components = 1,

  218.         .log2_chroma_w = 0,

  219.         .log2_chroma_h = 0,

  220.         .comp = {

  221.             { 0, 0, 1, 0, 7 },        /* Y */

  222.         },

  223.     },

  224.     [PIX_FMT_MONOWHITE] = {

  225.         .name = "monow",

  226.         .nb_components = 1,

  227.         .log2_chroma_w = 0,

  228.         .log2_chroma_h = 0,

  229.         .comp = {

  230.             { 0, 0, 1, 0, 0 },        /* Y */

  231.         },

  232.         .flags = PIX_FMT_BITSTREAM,

  233.     },

  234.     [PIX_FMT_MONOBLACK] = {

  235.         .name = "monob",

  236.         .nb_components = 1,

  237.         .log2_chroma_w = 0,

  238.         .log2_chroma_h = 0,

  239.         .comp = {

  240.             { 0, 0, 1, 7, 0 },        /* Y */

  241.         },

  242.         .flags = PIX_FMT_BITSTREAM,

  243.     },

  244.     [PIX_FMT_PAL8] = {

  245.         .name = "pal8",

  246.         .nb_components = 1,

  247.         .log2_chroma_w = 0,

  248.         .log2_chroma_h = 0,

  249.         .comp = {

  250.             { 0, 0, 1, 0, 7 },

  251.         },

  252.         .flags = PIX_FMT_PAL,

  253.     },

  254.     [PIX_FMT_YUVJ420P] = {

  255.         .name = "yuvj420p",

  256.         .nb_components = 3,

  257.         .log2_chroma_w = 1,

  258.         .log2_chroma_h = 1,

  259.         .comp = {

  260.             { 0, 0, 1, 0, 7 },        /* Y */

  261.             { 1, 0, 1, 0, 7 },        /* U */

  262.             { 2, 0, 1, 0, 7 },        /* V */

  263.         },

  264.         .flags = PIX_FMT_PLANAR,

  265.     },

  266.     [PIX_FMT_YUVJ422P] = {

  267.         .name = "yuvj422p",

  268.         .nb_components = 3,

  269.         .log2_chroma_w = 1,

  270.         .log2_chroma_h = 0,

  271.         .comp = {

  272.             { 0, 0, 1, 0, 7 },        /* Y */

  273.             { 1, 0, 1, 0, 7 },        /* U */

  274.             { 2, 0, 1, 0, 7 },        /* V */

  275.         },

  276.         .flags = PIX_FMT_PLANAR,

  277.     },

  278.     [PIX_FMT_YUVJ444P] = {

  279.         .name = "yuvj444p",

  280.         .nb_components = 3,

  281.         .log2_chroma_w = 0,

  282.         .log2_chroma_h = 0,

  283.         .comp = {

  284.             {0, 0, 1, 0, 7},        /* Y */

  285.             {1, 0, 1, 0, 7},        /* U */

  286.             {2, 0, 1, 0, 7},        /* V */

  287.         },

  288.         .flags = PIX_FMT_PLANAR,

  289.     },

  290.     [PIX_FMT_XVMC_MPEG2_MC] = {

  291.         .name = "xvmcmc",

  292.         .flags = PIX_FMT_HWACCEL,

  293.     },

  294.     [PIX_FMT_XVMC_MPEG2_IDCT] = {

  295.         .name = "xvmcidct",

  296.         .flags = PIX_FMT_HWACCEL,

  297.     },

  298.     [PIX_FMT_UYVY422] = {

  299.         .name = "uyvy422",

  300.         .nb_components = 3,

  301.         .log2_chroma_w = 1,

  302.         .log2_chroma_h = 0,

  303.         .comp = {

  304.             { 0, 1, 2, 0, 7 },        /* Y */

  305.             { 0, 3, 1, 0, 7 },        /* U */

  306.             { 0, 3, 3, 0, 7 },        /* V */

  307.         },

  308.     },

  309.     [PIX_FMT_UYYVYY411] = {

  310.         .name = "uyyvyy411",

  311.         .nb_components = 3,

  312.         .log2_chroma_w = 2,

  313.         .log2_chroma_h = 0,

  314.         .comp = {

  315.             { 0, 3, 2, 0, 7 },        /* Y */

  316.             { 0, 5, 1, 0, 7 },        /* U */

  317.             { 0, 5, 4, 0, 7 },        /* V */

  318.         },

  319.     },

  320.     [PIX_FMT_BGR8] = {

  321.         .name = "bgr8",

  322.         .nb_components = 3,

  323.         .log2_chroma_w = 0,

  324.         .log2_chroma_h = 0,

  325.         .comp = {

  326.             { 0, 0, 1, 6, 1 },        /* B */

  327.             { 0, 0, 1, 3, 2 },        /* G */

  328.             { 0, 0, 1, 0, 2 },        /* R */

  329.         },

  330.         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,

  331.     },

  332.     [PIX_FMT_BGR4] = {

  333.         .name = "bgr4",

  334.         .nb_components = 3,

  335.         .log2_chroma_w = 0,

  336.         .log2_chroma_h = 0,

  337.         .comp = {

  338.             { 0, 3, 1, 0, 0 },        /* B */

  339.             { 0, 3, 2, 0, 1 },        /* G */

  340.             { 0, 3, 4, 0, 0 },        /* R */

  341.         },

  342.         .flags = PIX_FMT_BITSTREAM | PIX_FMT_RGB,

  343.     },

  344.     [PIX_FMT_BGR4_BYTE] = {

  345.         .name = "bgr4_byte",

  346.         .nb_components = 3,

  347.         .log2_chroma_w = 0,

  348.         .log2_chroma_h = 0,

  349.         .comp = {

  350.             { 0, 0, 1, 3, 0 },        /* B */

  351.             { 0, 0, 1, 1, 1 },        /* G */

  352.             { 0, 0, 1, 0, 0 },        /* R */

  353.         },

  354.         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,

  355.     },

  356.     [PIX_FMT_RGB8] = {

  357.         .name = "rgb8",

  358.         .nb_components = 3,

  359.         .log2_chroma_w = 0,

  360.         .log2_chroma_h = 0,

  361.         .comp = {

  362.             { 0, 0, 1, 6, 1 },        /* R */

  363.             { 0, 0, 1, 3, 2 },        /* G */

  364.             { 0, 0, 1, 0, 2 },        /* B */

  365.         },

  366.         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,

  367.     },

  368.     [PIX_FMT_RGB4] = {

  369.         .name = "rgb4",

  370.         .nb_components = 3,

  371.         .log2_chroma_w = 0,

  372.         .log2_chroma_h = 0,

  373.         .comp = {

  374.             { 0, 3, 1, 0, 0 },        /* R */

  375.             { 0, 3, 2, 0, 1 },        /* G */

  376.             { 0, 3, 4, 0, 0 },        /* B */

  377.         },

  378.         .flags = PIX_FMT_BITSTREAM | PIX_FMT_RGB,

  379.     },

  380.     [PIX_FMT_RGB4_BYTE] = {

  381.         .name = "rgb4_byte",

  382.         .nb_components = 3,

  383.         .log2_chroma_w = 0,

  384.         .log2_chroma_h = 0,

  385.         .comp = {

  386.             { 0, 0, 1, 3, 0 },        /* R */

  387.             { 0, 0, 1, 1, 1 },        /* G */

  388.             { 0, 0, 1, 0, 0 },        /* B */

  389.         },

  390.         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,

  391.     },

  392.     [PIX_FMT_NV12] = {

  393.         .name = "nv12",

  394.         .nb_components = 3,

  395.         .log2_chroma_w = 1,

  396.         .log2_chroma_h = 1,

  397.         .comp = {

  398.             { 0,0,1,0,7 },        /* Y */

  399.             { 1,1,1,0,7 },        /* U */

  400.             { 1,1,2,0,7 },        /* V */

  401.         },

  402.         .flags = PIX_FMT_PLANAR,

  403.     },

  404.     [PIX_FMT_NV21] = {

  405.         .name = "nv21",

  406.         .nb_components = 3,

  407.         .log2_chroma_w = 1,

  408.         .log2_chroma_h = 1,

  409.         .comp = {

  410.             { 0, 0, 1, 0, 7 },        /* Y */

  411.             { 1, 1, 1, 0, 7 },        /* V */

  412.             { 1, 1, 2, 0, 7 },        /* U */

  413.         },

  414.         .flags = PIX_FMT_PLANAR,

  415.     },

  416.     [PIX_FMT_ARGB] = {

  417.         .name = "argb",

  418.         .nb_components = 4,

  419.         .log2_chroma_w = 0,

  420.         .log2_chroma_h = 0,

  421.         .comp = {

  422.             { 0, 3, 1, 0, 7 },        /* A */

  423.             { 0, 3, 2, 0, 7 },        /* R */

  424.             { 0, 3, 3, 0, 7 },        /* G */

  425.             { 0, 3, 4, 0, 7 },        /* B */

  426.         },

  427.         .flags = PIX_FMT_RGB,

  428.     },

  429.     [PIX_FMT_RGBA] = {

  430.         .name = "rgba",

  431.         .nb_components = 4,

  432.         .log2_chroma_w = 0,

  433.         .log2_chroma_h = 0,

  434.         .comp = {

  435.             { 0, 3, 1, 0, 7 },        /* R */

  436.             { 0, 3, 2, 0, 7 },        /* G */

  437.             { 0, 3, 3, 0, 7 },        /* B */

  438.             { 0, 3, 4, 0, 7 },        /* A */

  439.         },

  440.         .flags = PIX_FMT_RGB,

  441.     },

  442.     [PIX_FMT_ABGR] = {

  443.         .name = "abgr",

  444.         .nb_components = 4,

  445.         .log2_chroma_w = 0,

  446.         .log2_chroma_h = 0,

  447.         .comp = {

  448.             { 0, 3, 1, 0, 7 },        /* A */

  449.             { 0, 3, 2, 0, 7 },        /* B */

  450.             { 0, 3, 3, 0, 7 },        /* G */

  451.             { 0, 3, 4, 0, 7 },        /* R */

  452.         },

  453.         .flags = PIX_FMT_RGB,

  454.     },

  455.     [PIX_FMT_BGRA] = {

  456.         .name = "bgra",

  457.         .nb_components = 4,

  458.         .log2_chroma_w = 0,

  459.         .log2_chroma_h = 0,

  460.         .comp = {

  461.             { 0, 3, 1, 0, 7 },        /* B */

  462.             { 0, 3, 2, 0, 7 },        /* G */

  463.             { 0, 3, 3, 0, 7 },        /* R */

  464.             { 0, 3, 4, 0, 7 },        /* A */

  465.         },

  466.         .flags = PIX_FMT_RGB,

  467.     },

  468.     [PIX_FMT_GRAY16BE] = {

  469.         .name = "gray16be",

  470.         .nb_components = 1,

  471.         .log2_chroma_w = 0,

  472.         .log2_chroma_h = 0,

  473.         .comp = {

  474.             { 0, 1, 1, 0, 15 },       /* Y */

  475.         },

  476.         .flags = PIX_FMT_BE,

  477.     },

  478.     [PIX_FMT_GRAY16LE] = {

  479.         .name = "gray16le",

  480.         .nb_components = 1,

  481.         .log2_chroma_w = 0,

  482.         .log2_chroma_h = 0,

  483.         .comp = {

  484.             { 0, 1, 1, 0, 15 },       /* Y */

  485.         },

  486.     },

  487.     [PIX_FMT_YUV440P] = {

  488.         .name = "yuv440p",

  489.         .nb_components = 3,

  490.         .log2_chroma_w = 0,

  491.         .log2_chroma_h = 1,

  492.         .comp = {

  493.             { 0, 0, 1, 0, 7 },        /* Y */

  494.             { 1, 0, 1, 0, 7 },        /* U */

  495.             { 2, 0, 1, 0, 7 },        /* V */

  496.         },

  497.         .flags = PIX_FMT_PLANAR,

  498.     },

  499.     [PIX_FMT_YUVJ440P] = {

  500.         .name = "yuvj440p",

  501.         .nb_components = 3,

  502.         .log2_chroma_w = 0,

  503.         .log2_chroma_h = 1,

  504.         .comp = {

  505.             { 0, 0, 1, 0, 7 },        /* Y */

  506.             { 1, 0, 1, 0, 7 },        /* U */

  507.             { 2, 0, 1, 0, 7 },        /* V */

  508.         },

  509.         .flags = PIX_FMT_PLANAR,

  510.     },

  511.     [PIX_FMT_YUVA420P] = {

  512.         .name = "yuva420p",

  513.         .nb_components = 4,

  514.         .log2_chroma_w = 1,

  515.         .log2_chroma_h = 1,

  516.         .comp = {

  517.             { 0, 0, 1, 0, 7 },        /* Y */

  518.             { 1, 0, 1, 0, 7 },        /* U */

  519.             { 2, 0, 1, 0, 7 },        /* V */

  520.             { 3, 0, 1, 0, 7 },        /* A */

  521.         },

  522.         .flags = PIX_FMT_PLANAR,

  523.     },

  524.     [PIX_FMT_VDPAU_H264] = {

  525.         .name = "vdpau_h264",

  526.         .log2_chroma_w = 1,

  527.         .log2_chroma_h = 1,

  528.         .flags = PIX_FMT_HWACCEL,

  529.     },

  530.     [PIX_FMT_VDPAU_MPEG1] = {

  531.         .name = "vdpau_mpeg1",

  532.         .log2_chroma_w = 1,

  533.         .log2_chroma_h = 1,

  534.         .flags = PIX_FMT_HWACCEL,

  535.     },

  536.     [PIX_FMT_VDPAU_MPEG2] = {

  537.         .name = "vdpau_mpeg2",

  538.         .log2_chroma_w = 1,

  539.         .log2_chroma_h = 1,

  540.         .flags = PIX_FMT_HWACCEL,

  541.     },

  542.     [PIX_FMT_VDPAU_WMV3] = {

  543.         .name = "vdpau_wmv3",

  544.         .log2_chroma_w = 1,

  545.         .log2_chroma_h = 1,

  546.         .flags = PIX_FMT_HWACCEL,

  547.     },

  548.     [PIX_FMT_VDPAU_VC1] = {

  549.         .name = "vdpau_vc1",

  550.         .log2_chroma_w = 1,

  551.         .log2_chroma_h = 1,

  552.         .flags = PIX_FMT_HWACCEL,

  553.     },

  554.     [PIX_FMT_VDPAU_MPEG4] = {

  555.         .name = "vdpau_mpeg4",

  556.         .log2_chroma_w = 1,

  557.         .log2_chroma_h = 1,

  558.         .flags = PIX_FMT_HWACCEL,

  559.     },

  560.     [PIX_FMT_RGB48BE] = {

  561.         .name = "rgb48be",

  562.         .nb_components = 3,

  563.         .log2_chroma_w = 0,

  564.         .log2_chroma_h = 0,

  565.         .comp = {

  566.             { 0, 5, 1, 0, 15 },       /* R */

  567.             { 0, 5, 3, 0, 15 },       /* G */

  568.             { 0, 5, 5, 0, 15 },       /* B */

  569.         },

  570.         .flags = PIX_FMT_RGB | PIX_FMT_BE,

  571.     },

  572.     [PIX_FMT_RGB48LE] = {

  573.         .name = "rgb48le",

  574.         .nb_components = 3,

  575.         .log2_chroma_w = 0,

  576.         .log2_chroma_h = 0,

  577.         .comp = {

  578.             { 0, 5, 1, 0, 15 },       /* R */

  579.             { 0, 5, 3, 0, 15 },       /* G */

  580.             { 0, 5, 5, 0, 15 },       /* B */

  581.         },

  582.         .flags = PIX_FMT_RGB,

  583.     },

  584.     [PIX_FMT_RGB565BE] = {

  585.         .name = "rgb565be",

  586.         .nb_components = 3,

  587.         .log2_chroma_w = 0,

  588.         .log2_chroma_h = 0,

  589.         .comp = {

  590.             { 0, 1, 0, 3, 4 },        /* R */

  591.             { 0, 1, 1, 5, 5 },        /* G */

  592.             { 0, 1, 1, 0, 4 },        /* B */

  593.         },

  594.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  595.     },

  596.     [PIX_FMT_RGB565LE] = {

  597.         .name = "rgb565le",

  598.         .nb_components = 3,

  599.         .log2_chroma_w = 0,

  600.         .log2_chroma_h = 0,

  601.         .comp = {

  602.             { 0, 1, 2, 3, 4 },        /* R */

  603.             { 0, 1, 1, 5, 5 },        /* G */

  604.             { 0, 1, 1, 0, 4 },        /* B */

  605.         },

  606.         .flags = PIX_FMT_RGB,

  607.     },

  608.     [PIX_FMT_RGB555BE] = {

  609.         .name = "rgb555be",

  610.         .nb_components = 3,

  611.         .log2_chroma_w = 0,

  612.         .log2_chroma_h = 0,

  613.         .comp = {

  614.             { 0, 1, 0, 2, 4 },        /* R */

  615.             { 0, 1, 1, 5, 4 },        /* G */

  616.             { 0, 1, 1, 0, 4 },        /* B */

  617.         },

  618.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  619.     },

  620.     [PIX_FMT_RGB555LE] = {

  621.         .name = "rgb555le",

  622.         .nb_components = 3,

  623.         .log2_chroma_w = 0,

  624.         .log2_chroma_h = 0,

  625.         .comp = {

  626.             { 0, 1, 2, 2, 4 },        /* R */

  627.             { 0, 1, 1, 5, 4 },        /* G */

  628.             { 0, 1, 1, 0, 4 },        /* B */

  629.         },

  630.         .flags = PIX_FMT_RGB,

  631.     },

  632.     [PIX_FMT_RGB444BE] = {

  633.         .name = "rgb444be",

  634.         .nb_components = 3,

  635.         .log2_chroma_w = 0,

  636.         .log2_chroma_h = 0,

  637.         .comp = {

  638.             { 0, 1, 0, 0, 3 },        /* R */

  639.             { 0, 1, 1, 4, 3 },        /* G */

  640.             { 0, 1, 1, 0, 3 },        /* B */

  641.         },

  642.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  643.     },

  644.     [PIX_FMT_RGB444LE] = {

  645.         .name = "rgb444le",

  646.         .nb_components = 3,

  647.         .log2_chroma_w = 0,

  648.         .log2_chroma_h = 0,

  649.         .comp = {

  650.             { 0, 1, 2, 0, 3 },        /* R */

  651.             { 0, 1, 1, 4, 3 },        /* G */

  652.             { 0, 1, 1, 0, 3 },        /* B */

  653.         },

  654.         .flags = PIX_FMT_RGB,

  655.     },

  656.     [PIX_FMT_BGR48BE] = {

  657.         .name = "bgr48be",

  658.         .nb_components = 3,

  659.         .log2_chroma_w = 0,

  660.         .log2_chroma_h = 0,

  661.         .comp = {

  662.             { 0, 5, 1, 0, 15 },       /* B */

  663.             { 0, 5, 3, 0, 15 },       /* G */

  664.             { 0, 5, 5, 0, 15 },       /* R */

  665.         },

  666.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  667.     },

  668.     [PIX_FMT_BGR48LE] = {

  669.         .name = "bgr48le",

  670.         .nb_components = 3,

  671.         .log2_chroma_w = 0,

  672.         .log2_chroma_h = 0,

  673.         .comp = {

  674.             { 0, 5, 1, 0, 15 },       /* B */

  675.             { 0, 5, 3, 0, 15 },       /* G */

  676.             { 0, 5, 5, 0, 15 },       /* R */

  677.         },

  678.         .flags = PIX_FMT_RGB,

  679.     },

  680.     [PIX_FMT_BGR565BE] = {

  681.         .name = "bgr565be",

  682.         .nb_components = 3,

  683.         .log2_chroma_w = 0,

  684.         .log2_chroma_h = 0,

  685.         .comp = {

  686.             { 0, 1, 0, 3, 4 },        /* B */

  687.             { 0, 1, 1, 5, 5 },        /* G */

  688.             { 0, 1, 1, 0, 4 },        /* R */

  689.         },

  690.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  691.     },

  692.     [PIX_FMT_BGR565LE] = {

  693.         .name = "bgr565le",

  694.         .nb_components = 3,

  695.         .log2_chroma_w = 0,

  696.         .log2_chroma_h = 0,

  697.         .comp = {

  698.             { 0, 1, 2, 3, 4 },        /* B */

  699.             { 0, 1, 1, 5, 5 },        /* G */

  700.             { 0, 1, 1, 0, 4 },        /* R */

  701.         },

  702.         .flags = PIX_FMT_RGB,

  703.     },

  704.     [PIX_FMT_BGR555BE] = {

  705.         .name = "bgr555be",

  706.         .nb_components = 3,

  707.         .log2_chroma_w = 0,

  708.         .log2_chroma_h = 0,

  709.         .comp = {

  710.             { 0, 1, 0, 2, 4 },       /* B */

  711.             { 0, 1, 1, 5, 4 },       /* G */

  712.             { 0, 1, 1, 0, 4 },       /* R */

  713.         },

  714.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  715.      },

  716.     [PIX_FMT_BGR555LE] = {

  717.         .name = "bgr555le",

  718.         .nb_components = 3,

  719.         .log2_chroma_w = 0,

  720.         .log2_chroma_h = 0,

  721.         .comp = {

  722.             { 0, 1, 2, 2, 4 },        /* B */

  723.             { 0, 1, 1, 5, 4 },        /* G */

  724.             { 0, 1, 1, 0, 4 },        /* R */

  725.         },

  726.         .flags = PIX_FMT_RGB,

  727.     },

  728.     [PIX_FMT_BGR444BE] = {

  729.         .name = "bgr444be",

  730.         .nb_components = 3,

  731.         .log2_chroma_w = 0,

  732.         .log2_chroma_h = 0,

  733.         .comp = {

  734.             { 0, 1, 0, 0, 3 },       /* B */

  735.             { 0, 1, 1, 4, 3 },       /* G */

  736.             { 0, 1, 1, 0, 3 },       /* R */

  737.         },

  738.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  739.      },

  740.     [PIX_FMT_BGR444LE] = {

  741.         .name = "bgr444le",

  742.         .nb_components = 3,

  743.         .log2_chroma_w = 0,

  744.         .log2_chroma_h = 0,

  745.         .comp = {

  746.             { 0, 1, 2, 0, 3 },        /* B */

  747.             { 0, 1, 1, 4, 3 },        /* G */

  748.             { 0, 1, 1, 0, 3 },        /* R */

  749.         },

  750.         .flags = PIX_FMT_RGB,

  751.     },

  752.     [PIX_FMT_VAAPI_MOCO] = {

  753.         .name = "vaapi_moco",

  754.         .log2_chroma_w = 1,

  755.         .log2_chroma_h = 1,

  756.         .flags = PIX_FMT_HWACCEL,

  757.     },

  758.     [PIX_FMT_VAAPI_IDCT] = {

  759.         .name = "vaapi_idct",

  760.         .log2_chroma_w = 1,

  761.         .log2_chroma_h = 1,

  762.         .flags = PIX_FMT_HWACCEL,

  763.     },

  764.     [PIX_FMT_VAAPI_VLD] = {

  765.         .name = "vaapi_vld",

  766.         .log2_chroma_w = 1,

  767.         .log2_chroma_h = 1,

  768.         .flags = PIX_FMT_HWACCEL,

  769.     },

  770.     [PIX_FMT_VDA_VLD] = {

  771.         .name = "vda_vld",

  772.         .log2_chroma_w = 1,

  773.         .log2_chroma_h = 1,

  774.         .flags = PIX_FMT_HWACCEL,

  775.     },

  776.     [PIX_FMT_YUV420P9LE] = {

  777.         .name = "yuv420p9le",

  778.         .nb_components = 3,

  779.         .log2_chroma_w = 1,

  780.         .log2_chroma_h = 1,

  781.         .comp = {

  782.             { 0, 1, 1, 0, 8 },        /* Y */

  783.             { 1, 1, 1, 0, 8 },        /* U */

  784.             { 2, 1, 1, 0, 8 },        /* V */

  785.         },

  786.         .flags = PIX_FMT_PLANAR,

  787.     },

  788.     [PIX_FMT_YUV420P9BE] = {

  789.         .name = "yuv420p9be",

  790.         .nb_components = 3,

  791.         .log2_chroma_w = 1,

  792.         .log2_chroma_h = 1,

  793.         .comp = {

  794.             { 0, 1, 1, 0, 8 },        /* Y */

  795.             { 1, 1, 1, 0, 8 },        /* U */

  796.             { 2, 1, 1, 0, 8 },        /* V */

  797.         },

  798.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  799.     },

  800.     [PIX_FMT_YUV420P10LE] = {

  801.         .name = "yuv420p10le",

  802.         .nb_components = 3,

  803.         .log2_chroma_w = 1,

  804.         .log2_chroma_h = 1,

  805.         .comp = {

  806.             { 0, 1, 1, 0, 9 },        /* Y */

  807.             { 1, 1, 1, 0, 9 },        /* U */

  808.             { 2, 1, 1, 0, 9 },        /* V */

  809.         },

  810.         .flags = PIX_FMT_PLANAR,

  811.     },

  812.     [PIX_FMT_YUV420P10BE] = {

  813.         .name = "yuv420p10be",

  814.         .nb_components = 3,

  815.         .log2_chroma_w = 1,

  816.         .log2_chroma_h = 1,

  817.         .comp = {

  818.             { 0, 1, 1, 0, 9 },        /* Y */

  819.             { 1, 1, 1, 0, 9 },        /* U */

  820.             { 2, 1, 1, 0, 9 },        /* V */

  821.         },

  822.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  823.     },

  824.     [PIX_FMT_YUV420P16LE] = {

  825.         .name = "yuv420p16le",

  826.         .nb_components = 3,

  827.         .log2_chroma_w = 1,

  828.         .log2_chroma_h = 1,

  829.         .comp = {

  830.             { 0, 1, 1, 0, 15 },        /* Y */

  831.             { 1, 1, 1, 0, 15 },        /* U */

  832.             { 2, 1, 1, 0, 15 },        /* V */

  833.         },

  834.         .flags = PIX_FMT_PLANAR,

  835.     },

  836.     [PIX_FMT_YUV420P16BE] = {

  837.         .name = "yuv420p16be",

  838.         .nb_components = 3,

  839.         .log2_chroma_w = 1,

  840.         .log2_chroma_h = 1,

  841.         .comp = {

  842.             { 0, 1, 1, 0, 15 },        /* Y */

  843.             { 1, 1, 1, 0, 15 },        /* U */

  844.             { 2, 1, 1, 0, 15 },        /* V */

  845.         },

  846.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  847.     },

  848.     [PIX_FMT_YUV422P9LE] = {

  849.         .name = "yuv422p9le",

  850.         .nb_components = 3,

  851.         .log2_chroma_w = 1,

  852.         .log2_chroma_h = 0,

  853.         .comp = {

  854.             { 0, 1, 1, 0, 8 },        /* Y */

  855.             { 1, 1, 1, 0, 8 },        /* U */

  856.             { 2, 1, 1, 0, 8 },        /* V */

  857.         },

  858.         .flags = PIX_FMT_PLANAR,

  859.     },

  860.     [PIX_FMT_YUV422P9BE] = {

  861.         .name = "yuv422p9be",

  862.         .nb_components = 3,

  863.         .log2_chroma_w = 1,

  864.         .log2_chroma_h = 0,

  865.         .comp = {

  866.             {0,1,1,0,8},        /* Y */

  867.             {1,1,1,0,8},        /* U */

  868.             {2,1,1,0,8},        /* V */

  869.         },

  870.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  871.     },

  872.     [PIX_FMT_YUV422P10LE] = {

  873.         .name = "yuv422p10le",

  874.         .nb_components = 3,

  875.         .log2_chroma_w = 1,

  876.         .log2_chroma_h = 0,

  877.         .comp = {

  878.             { 0, 1, 1, 0, 9 },        /* Y */

  879.             { 1, 1, 1, 0, 9 },        /* U */

  880.             { 2, 1, 1, 0, 9 },        /* V */

  881.         },

  882.         .flags = PIX_FMT_PLANAR,

  883.     },

  884.     [PIX_FMT_YUV422P10BE] = {

  885.         .name = "yuv422p10be",

  886.         .nb_components = 3,

  887.         .log2_chroma_w = 1,

  888.         .log2_chroma_h = 0,

  889.         .comp = {

  890.             { 0, 1, 1, 0, 9 },        /* Y */

  891.             { 1, 1, 1, 0, 9 },        /* U */

  892.             { 2, 1, 1, 0, 9 },        /* V */

  893.         },

  894.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  895.     },

  896.     [PIX_FMT_YUV422P16LE] = {

  897.         .name = "yuv422p16le",

  898.         .nb_components = 3,

  899.         .log2_chroma_w = 1,

  900.         .log2_chroma_h = 0,

  901.         .comp = {

  902.             { 0, 1, 1, 0, 15 },        /* Y */

  903.             { 1, 1, 1, 0, 15 },        /* U */

  904.             { 2, 1, 1, 0, 15 },        /* V */

  905.         },

  906.         .flags = PIX_FMT_PLANAR,

  907.     },

  908.     [PIX_FMT_YUV422P16BE] = {

  909.         .name = "yuv422p16be",

  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.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  919.     },

  920.     [PIX_FMT_YUV444P16LE] = {

  921.         .name = "yuv444p16le",

  922.         .nb_components = 3,

  923.         .log2_chroma_w = 0,

  924.         .log2_chroma_h = 0,

  925.         .comp = {

  926.             { 0, 1, 1, 0, 15 },        /* Y */

  927.             { 1, 1, 1, 0, 15 },        /* U */

  928.             { 2, 1, 1, 0, 15 },        /* V */

  929.         },

  930.         .flags = PIX_FMT_PLANAR,

  931.     },

  932.     [PIX_FMT_YUV444P16BE] = {

  933.         .name = "yuv444p16be",

  934.         .nb_components = 3,

  935.         .log2_chroma_w = 0,

  936.         .log2_chroma_h = 0,

  937.         .comp = {

  938.             { 0, 1, 1, 0, 15 },        /* Y */

  939.             { 1, 1, 1, 0, 15 },        /* U */

  940.             { 2, 1, 1, 0, 15 },        /* V */

  941.         },

  942.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  943.     },

  944.     [PIX_FMT_YUV444P10LE] = {

  945.         .name = "yuv444p10le",

  946.         .nb_components = 3,

  947.         .log2_chroma_w = 0,

  948.         .log2_chroma_h = 0,

  949.         .comp = {

  950.             { 0, 1, 1, 0, 9 },        /* Y */

  951.             { 1, 1, 1, 0, 9 },        /* U */

  952.             { 2, 1, 1, 0, 9 },        /* V */

  953.         },

  954.         .flags = PIX_FMT_PLANAR,

  955.     },

  956.     [PIX_FMT_YUV444P10BE] = {

  957.         .name = "yuv444p10be",

  958.         .nb_components = 3,

  959.         .log2_chroma_w = 0,

  960.         .log2_chroma_h = 0,

  961.         .comp = {

  962.             { 0, 1, 1, 0, 9 },        /* Y */

  963.             { 1, 1, 1, 0, 9 },        /* U */

  964.             { 2, 1, 1, 0, 9 },        /* V */

  965.         },

  966.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  967.     },

  968.     [PIX_FMT_YUV444P9LE] = {

  969.         .name = "yuv444p9le",

  970.         .nb_components = 3,

  971.         .log2_chroma_w = 0,

  972.         .log2_chroma_h = 0,

  973.         .comp = {

  974.             { 0, 1, 1, 0, 8 },        /* Y */

  975.             { 1, 1, 1, 0, 8 },        /* U */

  976.             { 2, 1, 1, 0, 8 },        /* V */

  977.         },

  978.         .flags = PIX_FMT_PLANAR,

  979.     },

  980.     [PIX_FMT_YUV444P9BE] = {

  981.         .name = "yuv444p9be",

  982.         .nb_components = 3,

  983.         .log2_chroma_w = 0,

  984.         .log2_chroma_h = 0,

  985.         .comp = {

  986.             { 0, 1, 1, 0, 8 },        /* Y */

  987.             { 1, 1, 1, 0, 8 },        /* U */

  988.             { 2, 1, 1, 0, 8 },        /* V */

  989.         },

  990.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  991.     },

  992.     [PIX_FMT_DXVA2_VLD] = {

  993.         .name = "dxva2_vld",

  994.         .log2_chroma_w = 1,

  995.         .log2_chroma_h = 1,

  996.         .flags = PIX_FMT_HWACCEL,

  997.     },

  998.     [PIX_FMT_Y400A] = {

  999.         .name = "y400a",

  1000.         .nb_components = 2,

  1001.         .comp = {

  1002.             { 0, 1, 1, 0, 7 },        /* Y */

  1003.             { 0, 1, 2, 0, 7 },        /* A */

  1004.         },

  1005.     },

  1006.     [PIX_FMT_GBRP] = {

  1007.         .name = "gbrp",

  1008.         .nb_components = 3,

  1009.         .log2_chroma_w = 0,

  1010.         .log2_chroma_h = 0,

  1011.         .comp = {

  1012.             { 0, 0, 1, 0, 7 },        /* G */

  1013.             { 1, 0, 1, 0, 7 },        /* B */

  1014.             { 2, 0, 1, 0, 7 },        /* R */

  1015.         },

  1016.         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,

  1017.     },

  1018.     [PIX_FMT_GBRP9LE] = {

  1019.         .name = "gbrp9le",

  1020.         .nb_components = 3,

  1021.         .log2_chroma_w = 0,

  1022.         .log2_chroma_h = 0,

  1023.         .comp = {

  1024.             { 0, 1, 1, 0, 8 },        /* G */

  1025.             { 1, 1, 1, 0, 8 },        /* B */

  1026.             { 2, 1, 1, 0, 8 },        /* R */

  1027.         },

  1028.         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,

  1029.     },

  1030.     [PIX_FMT_GBRP9BE] = {

  1031.         .name = "gbrp9be",

  1032.         .nb_components = 3,

  1033.         .log2_chroma_w = 0,

  1034.         .log2_chroma_h = 0,

  1035.         .comp = {

  1036.             { 0, 1, 1, 0, 8 },        /* G */

  1037.             { 1, 1, 1, 0, 8 },        /* B */

  1038.             { 2, 1, 1, 0, 8 },        /* R */

  1039.         },

  1040.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,

  1041.     },

  1042.     [PIX_FMT_GBRP10LE] = {

  1043.         .name = "gbrp10le",

  1044.         .nb_components = 3,

  1045.         .log2_chroma_w = 0,

  1046.         .log2_chroma_h = 0,

  1047.         .comp = {

  1048.             { 0, 1, 1, 0, 9 },        /* G */

  1049.             { 1, 1, 1, 0, 9 },        /* B */

  1050.             { 2, 1, 1, 0, 9 },        /* R */

  1051.         },

  1052.         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,

  1053.     },

  1054.     [PIX_FMT_GBRP10BE] = {

  1055.         .name = "gbrp10be",

  1056.         .nb_components = 3,

  1057.         .log2_chroma_w = 0,

  1058.         .log2_chroma_h = 0,

  1059.         .comp = {

  1060.             { 0, 1, 1, 0, 9 },        /* G */

  1061.             { 1, 1, 1, 0, 9 },        /* B */

  1062.             { 2, 1, 1, 0, 9 },        /* R */

  1063.         },

  1064.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,

  1065.     },

  1066.     [PIX_FMT_GBRP16LE] = {

  1067.         .name = "gbrp16le",

  1068.         .nb_components = 3,

  1069.         .log2_chroma_w = 0,

  1070.         .log2_chroma_h = 0,

  1071.         .comp = {

  1072.             { 0, 1, 1, 0, 15 },       /* G */

  1073.             { 1, 1, 1, 0, 15 },       /* B */

  1074.             { 2, 1, 1, 0, 15 },       /* R */

  1075.         },

  1076.         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,

  1077.     },

  1078.     [PIX_FMT_GBRP16BE] = {

  1079.         .name = "gbrp16be",

  1080.         .nb_components = 3,

  1081.         .log2_chroma_w = 0,

  1082.         .log2_chroma_h = 0,

  1083.         .comp = {

  1084.             { 0, 1, 1, 0, 15 },       /* G */

  1085.             { 1, 1, 1, 0, 15 },       /* B */

  1086.             { 2, 1, 1, 0, 15 },       /* R */

  1087.         },

  1088.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,

  1089.     },

  1090. };

  1091. 

  1092. static enum PixelFormat get_pix_fmt_internal(const char *name)

  1093. {

  1094.     enum PixelFormat pix_fmt;

  1095. 

  1096.     for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)

  1097.         if (av_pix_fmt_descriptors[pix_fmt].name &&

  1098.             !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))

  1099.             return pix_fmt;

  1100. 

  1101.     return PIX_FMT_NONE;

  1102. }

  1103. 

  1104. const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt)

  1105. {

  1106.     return (unsigned)pix_fmt < PIX_FMT_NB ?

  1107.         av_pix_fmt_descriptors[pix_fmt].name : NULL;

  1108. }

  1109. 

  1110. #if HAVE_BIGENDIAN

  1111. #   define X_NE(be, le) be

  1112. #else

  1113. #   define X_NE(be, le) le

  1114. #endif

  1115. 

  1116. enum PixelFormat av_get_pix_fmt(const char *name)

  1117. {

  1118.     enum PixelFormat pix_fmt;

  1119. 

  1120.     if (!strcmp(name, "rgb32"))

  1121.         name = X_NE("argb", "bgra");

  1122.     else if (!strcmp(name, "bgr32"))

  1123.         name = X_NE("abgr", "rgba");

  1124. 

  1125.     pix_fmt = get_pix_fmt_internal(name);

  1126.     if (pix_fmt == PIX_FMT_NONE) {

  1127.         char name2[32];

  1128. 

  1129.         snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));

  1130.         pix_fmt = get_pix_fmt_internal(name2);

  1131.     }

  1132.     return pix_fmt;

  1133. }

  1134. 

  1135. int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)

  1136. {

  1137.     int c, bits = 0;

  1138.     int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;

  1139. 

  1140.     for (c = 0; c < pixdesc->nb_components; c++) {

  1141.         int s = c == 1 || c == 2 ? 0 : log2_pixels;

  1142.         bits += (pixdesc->comp[c].depth_minus1 + 1) << s;

  1143.     }

  1144. 

  1145.     return bits >> log2_pixels;

  1146. }

  1147. 

  1148. char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)

  1149. {

  1150.     /* print header */

  1151.     if (pix_fmt < 0) {

  1152.        snprintf (buf, buf_size, "name" " nb_components" " nb_bits");

  1153.     } else {

  1154.         const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];

  1155.         snprintf(buf, buf_size, "%-11s %7d %10d", pixdesc->name,

  1156.                  pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));

  1157.     }

  1158. 

  1159.     return buf;

  1160. }