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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,

  30.                         const uint8_t *data[4], const int linesize[4],

  31.                         const AVPixFmtDescriptor *desc,

  32.                         int x, int y, int c, int w,

  33.                         int read_pal_component)

  34. {

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

  36.     int plane = comp.plane;

  37.     int depth = comp.depth_minus1 + 1;

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

  39.     int shift = comp.shift;

  40.     int step  = comp.step_minus1 + 1;

  41.     int flags = desc->flags;

  42. 

  43.     if (flags & PIX_FMT_BITSTREAM) {

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

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

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

  47. 

  48.         while (w--) {

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

  50.             if (read_pal_component)

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

  52.             shift -= step;

  53.             p -= shift >> 3;

  54.             shift &= 7;

  55.             *dst++ = val;

  56.         }

  57.     } else {

  58.         const uint8_t *p = data[plane] + y * linesize[plane] +

  59.                            x * step + comp.offset_plus1 - 1;

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

  61. 

  62.         if (is_8bit)

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

  64. 

  65.         while (w--) {

  66.             int val = is_8bit ? *p :

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

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

  69.             if (read_pal_component)

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

  71.             p += step;

  72.             *dst++ = val;

  73.         }

  74.     }

  75. }

  76. 

  77. void av_write_image_line(const uint16_t *src,

  78.                          uint8_t *data[4], const int linesize[4],

  79.                          const AVPixFmtDescriptor *desc,

  80.                          int x, int y, int c, int w)

  81. {

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

  83.     int plane = comp.plane;

  84.     int depth = comp.depth_minus1 + 1;

  85.     int step  = comp.step_minus1 + 1;

  86.     int flags = desc->flags;

  87. 

  88.     if (flags & PIX_FMT_BITSTREAM) {

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

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

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

  92. 

  93.         while (w--) {

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

  95.             shift -= step;

  96.             p -= shift >> 3;

  97.             shift &= 7;

  98.         }

  99.     } else {

  100.         int shift = comp.shift;

  101.         uint8_t *p = data[plane] + y * linesize[plane] +

  102.                      x * step + comp.offset_plus1 - 1;

  103. 

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

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

  106.             while (w--) {

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

  108.                 p += step;

  109.             }

  110.         } else {

  111.             while (w--) {

  112.                 if (flags & PIX_FMT_BE) {

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

  114.                     AV_WB16(p, val);

  115.                 } else {

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

  117.                     AV_WL16(p, val);

  118.                 }

  119.                 p += step;

  120.             }

  121.         }

  122.     }

  123. }

  124. 

  125. const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {

  126.     [PIX_FMT_YUV420P] = {

  127.         .name = "yuv420p",

  128.         .nb_components = 3,

  129.         .log2_chroma_w = 1,

  130.         .log2_chroma_h = 1,

  131.         .comp = {

  132.             { 0, 0, 1, 0, 7 },        /* Y */

  133.             { 1, 0, 1, 0, 7 },        /* U */

  134.             { 2, 0, 1, 0, 7 },        /* V */

  135.         },

  136.         .flags = PIX_FMT_PLANAR,

  137.     },

  138.     [PIX_FMT_YUYV422] = {

  139.         .name = "yuyv422",

  140.         .nb_components = 3,

  141.         .log2_chroma_w = 1,

  142.         .log2_chroma_h = 0,

  143.         .comp = {

  144.             { 0, 1, 1, 0, 7 },        /* Y */

  145.             { 0, 3, 2, 0, 7 },        /* U */

  146.             { 0, 3, 4, 0, 7 },        /* V */

  147.         },

  148.     },

  149.     [PIX_FMT_RGB24] = {

  150.         .name = "rgb24",

  151.         .nb_components = 3,

  152.         .log2_chroma_w = 0,

  153.         .log2_chroma_h = 0,

  154.         .comp = {

  155.             { 0, 2, 1, 0, 7 },        /* R */

  156.             { 0, 2, 2, 0, 7 },        /* G */

  157.             { 0, 2, 3, 0, 7 },        /* B */

  158.         },

  159.         .flags = PIX_FMT_RGB,

  160.     },

  161.     [PIX_FMT_BGR24] = {

  162.         .name = "bgr24",

  163.         .nb_components = 3,

  164.         .log2_chroma_w = 0,

  165.         .log2_chroma_h = 0,

  166.         .comp = {

  167.             { 0, 2, 1, 0, 7 },        /* B */

  168.             { 0, 2, 2, 0, 7 },        /* G */

  169.             { 0, 2, 3, 0, 7 },        /* R */

  170.         },

  171.         .flags = PIX_FMT_RGB,

  172.     },

  173.     [PIX_FMT_YUV422P] = {

  174.         .name = "yuv422p",

  175.         .nb_components = 3,

  176.         .log2_chroma_w = 1,

  177.         .log2_chroma_h = 0,

  178.         .comp = {

  179.             { 0, 0, 1, 0, 7 },        /* Y */

  180.             { 1, 0, 1, 0, 7 },        /* U */

  181.             { 2, 0, 1, 0, 7 },        /* V */

  182.         },

  183.         .flags = PIX_FMT_PLANAR,

  184.     },

  185.     [PIX_FMT_YUV444P] = {

  186.         .name = "yuv444p",

  187.         .nb_components = 3,

  188.         .log2_chroma_w = 0,

  189.         .log2_chroma_h = 0,

  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.         .flags = PIX_FMT_PLANAR,

  196.     },

  197.     [PIX_FMT_YUV410P] = {

  198.         .name = "yuv410p",

  199.         .nb_components = 3,

  200.         .log2_chroma_w = 2,

  201.         .log2_chroma_h = 2,

  202.         .comp = {

  203.             { 0, 0, 1, 0, 7 },        /* Y */

  204.             { 1, 0, 1, 0, 7 },        /* U */

  205.             { 2, 0, 1, 0, 7 },        /* V */

  206.         },

  207.         .flags = PIX_FMT_PLANAR,

  208.     },

  209.     [PIX_FMT_YUV411P] = {

  210.         .name = "yuv411p",

  211.         .nb_components = 3,

  212.         .log2_chroma_w = 2,

  213.         .log2_chroma_h = 0,

  214.         .comp = {

  215.             { 0, 0, 1, 0, 7 },        /* Y */

  216.             { 1, 0, 1, 0, 7 },        /* U */

  217.             { 2, 0, 1, 0, 7 },        /* V */

  218.         },

  219.         .flags = PIX_FMT_PLANAR,

  220.     },

  221.     [PIX_FMT_GRAY8] = {

  222.         .name = "gray",

  223.         .nb_components = 1,

  224.         .log2_chroma_w = 0,

  225.         .log2_chroma_h = 0,

  226.         .comp = {

  227.             { 0, 0, 1, 0, 7 },        /* Y */

  228.         },

  229.     },

  230.     [PIX_FMT_MONOWHITE] = {

  231.         .name = "monow",

  232.         .nb_components = 1,

  233.         .log2_chroma_w = 0,

  234.         .log2_chroma_h = 0,

  235.         .comp = {

  236.             { 0, 0, 1, 0, 0 },        /* Y */

  237.         },

  238.         .flags = PIX_FMT_BITSTREAM,

  239.     },

  240.     [PIX_FMT_MONOBLACK] = {

  241.         .name = "monob",

  242.         .nb_components = 1,

  243.         .log2_chroma_w = 0,

  244.         .log2_chroma_h = 0,

  245.         .comp = {

  246.             { 0, 0, 1, 7, 0 },        /* Y */

  247.         },

  248.         .flags = PIX_FMT_BITSTREAM,

  249.     },

  250.     [PIX_FMT_PAL8] = {

  251.         .name = "pal8",

  252.         .nb_components = 1,

  253.         .log2_chroma_w = 0,

  254.         .log2_chroma_h = 0,

  255.         .comp = {

  256.             { 0, 0, 1, 0, 7 },

  257.         },

  258.         .flags = PIX_FMT_PAL,

  259.     },

  260.     [PIX_FMT_YUVJ420P] = {

  261.         .name = "yuvj420p",

  262.         .nb_components = 3,

  263.         .log2_chroma_w = 1,

  264.         .log2_chroma_h = 1,

  265.         .comp = {

  266.             { 0, 0, 1, 0, 7 },        /* Y */

  267.             { 1, 0, 1, 0, 7 },        /* U */

  268.             { 2, 0, 1, 0, 7 },        /* V */

  269.         },

  270.         .flags = PIX_FMT_PLANAR,

  271.     },

  272.     [PIX_FMT_YUVJ422P] = {

  273.         .name = "yuvj422p",

  274.         .nb_components = 3,

  275.         .log2_chroma_w = 1,

  276.         .log2_chroma_h = 0,

  277.         .comp = {

  278.             { 0, 0, 1, 0, 7 },        /* Y */

  279.             { 1, 0, 1, 0, 7 },        /* U */

  280.             { 2, 0, 1, 0, 7 },        /* V */

  281.         },

  282.         .flags = PIX_FMT_PLANAR,

  283.     },

  284.     [PIX_FMT_YUVJ444P] = {

  285.         .name = "yuvj444p",

  286.         .nb_components = 3,

  287.         .log2_chroma_w = 0,

  288.         .log2_chroma_h = 0,

  289.         .comp = {

  290.             {0, 0, 1, 0, 7},        /* Y */

  291.             {1, 0, 1, 0, 7},        /* U */

  292.             {2, 0, 1, 0, 7},        /* V */

  293.         },

  294.         .flags = PIX_FMT_PLANAR,

  295.     },

  296.     [PIX_FMT_XVMC_MPEG2_MC] = {

  297.         .name = "xvmcmc",

  298.         .flags = PIX_FMT_HWACCEL,

  299.     },

  300.     [PIX_FMT_XVMC_MPEG2_IDCT] = {

  301.         .name = "xvmcidct",

  302.         .flags = PIX_FMT_HWACCEL,

  303.     },

  304.     [PIX_FMT_UYVY422] = {

  305.         .name = "uyvy422",

  306.         .nb_components = 3,

  307.         .log2_chroma_w = 1,

  308.         .log2_chroma_h = 0,

  309.         .comp = {

  310.             { 0, 1, 2, 0, 7 },        /* Y */

  311.             { 0, 3, 1, 0, 7 },        /* U */

  312.             { 0, 3, 3, 0, 7 },        /* V */

  313.         },

  314.     },

  315.     [PIX_FMT_UYYVYY411] = {

  316.         .name = "uyyvyy411",

  317.         .nb_components = 3,

  318.         .log2_chroma_w = 2,

  319.         .log2_chroma_h = 0,

  320.         .comp = {

  321.             { 0, 3, 2, 0, 7 },        /* Y */

  322.             { 0, 5, 1, 0, 7 },        /* U */

  323.             { 0, 5, 4, 0, 7 },        /* V */

  324.         },

  325.     },

  326.     [PIX_FMT_BGR8] = {

  327.         .name = "bgr8",

  328.         .nb_components = 3,

  329.         .log2_chroma_w = 0,

  330.         .log2_chroma_h = 0,

  331.         .comp = {

  332.             { 0, 0, 1, 6, 1 },        /* B */

  333.             { 0, 0, 1, 3, 2 },        /* G */

  334.             { 0, 0, 1, 0, 2 },        /* R */

  335.         },

  336.         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,

  337.     },

  338.     [PIX_FMT_BGR4] = {

  339.         .name = "bgr4",

  340.         .nb_components = 3,

  341.         .log2_chroma_w = 0,

  342.         .log2_chroma_h = 0,

  343.         .comp = {

  344.             { 0, 3, 1, 0, 0 },        /* B */

  345.             { 0, 3, 2, 0, 1 },        /* G */

  346.             { 0, 3, 4, 0, 0 },        /* R */

  347.         },

  348.         .flags = PIX_FMT_BITSTREAM | PIX_FMT_RGB,

  349.     },

  350.     [PIX_FMT_BGR4_BYTE] = {

  351.         .name = "bgr4_byte",

  352.         .nb_components = 3,

  353.         .log2_chroma_w = 0,

  354.         .log2_chroma_h = 0,

  355.         .comp = {

  356.             { 0, 0, 1, 3, 0 },        /* B */

  357.             { 0, 0, 1, 1, 1 },        /* G */

  358.             { 0, 0, 1, 0, 0 },        /* R */

  359.         },

  360.         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,

  361.     },

  362.     [PIX_FMT_RGB8] = {

  363.         .name = "rgb8",

  364.         .nb_components = 3,

  365.         .log2_chroma_w = 0,

  366.         .log2_chroma_h = 0,

  367.         .comp = {

  368.             { 0, 0, 1, 6, 1 },        /* R */

  369.             { 0, 0, 1, 3, 2 },        /* G */

  370.             { 0, 0, 1, 0, 2 },        /* B */

  371.         },

  372.         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,

  373.     },

  374.     [PIX_FMT_RGB4] = {

  375.         .name = "rgb4",

  376.         .nb_components = 3,

  377.         .log2_chroma_w = 0,

  378.         .log2_chroma_h = 0,

  379.         .comp = {

  380.             { 0, 3, 1, 0, 0 },        /* R */

  381.             { 0, 3, 2, 0, 1 },        /* G */

  382.             { 0, 3, 4, 0, 0 },        /* B */

  383.         },

  384.         .flags = PIX_FMT_BITSTREAM | PIX_FMT_RGB,

  385.     },

  386.     [PIX_FMT_RGB4_BYTE] = {

  387.         .name = "rgb4_byte",

  388.         .nb_components = 3,

  389.         .log2_chroma_w = 0,

  390.         .log2_chroma_h = 0,

  391.         .comp = {

  392.             { 0, 0, 1, 3, 0 },        /* R */

  393.             { 0, 0, 1, 1, 1 },        /* G */

  394.             { 0, 0, 1, 0, 0 },        /* B */

  395.         },

  396.         .flags = PIX_FMT_RGB | PIX_FMT_PSEUDOPAL,

  397.     },

  398.     [PIX_FMT_NV12] = {

  399.         .name = "nv12",

  400.         .nb_components = 3,

  401.         .log2_chroma_w = 1,

  402.         .log2_chroma_h = 1,

  403.         .comp = {

  404.             { 0, 0, 1, 0, 7 },        /* Y */

  405.             { 1, 1, 1, 0, 7 },        /* U */

  406.             { 1, 1, 2, 0, 7 },        /* V */

  407.         },

  408.         .flags = PIX_FMT_PLANAR,

  409.     },

  410.     [PIX_FMT_NV21] = {

  411.         .name = "nv21",

  412.         .nb_components = 3,

  413.         .log2_chroma_w = 1,

  414.         .log2_chroma_h = 1,

  415.         .comp = {

  416.             { 0, 0, 1, 0, 7 },        /* Y */

  417.             { 1, 1, 1, 0, 7 },        /* V */

  418.             { 1, 1, 2, 0, 7 },        /* U */

  419.         },

  420.         .flags = PIX_FMT_PLANAR,

  421.     },

  422.     [PIX_FMT_ARGB] = {

  423.         .name = "argb",

  424.         .nb_components = 4,

  425.         .log2_chroma_w = 0,

  426.         .log2_chroma_h = 0,

  427.         .comp = {

  428.             { 0, 3, 1, 0, 7 },        /* A */

  429.             { 0, 3, 2, 0, 7 },        /* R */

  430.             { 0, 3, 3, 0, 7 },        /* G */

  431.             { 0, 3, 4, 0, 7 },        /* B */

  432.         },

  433.         .flags = PIX_FMT_RGB,

  434.     },

  435.     [PIX_FMT_RGBA] = {

  436.         .name = "rgba",

  437.         .nb_components = 4,

  438.         .log2_chroma_w = 0,

  439.         .log2_chroma_h = 0,

  440.         .comp = {

  441.             { 0, 3, 1, 0, 7 },        /* R */

  442.             { 0, 3, 2, 0, 7 },        /* G */

  443.             { 0, 3, 3, 0, 7 },        /* B */

  444.             { 0, 3, 4, 0, 7 },        /* A */

  445.         },

  446.         .flags = PIX_FMT_RGB,

  447.     },

  448.     [PIX_FMT_ABGR] = {

  449.         .name = "abgr",

  450.         .nb_components = 4,

  451.         .log2_chroma_w = 0,

  452.         .log2_chroma_h = 0,

  453.         .comp = {

  454.             { 0, 3, 1, 0, 7 },        /* A */

  455.             { 0, 3, 2, 0, 7 },        /* B */

  456.             { 0, 3, 3, 0, 7 },        /* G */

  457.             { 0, 3, 4, 0, 7 },        /* R */

  458.         },

  459.         .flags = PIX_FMT_RGB,

  460.     },

  461.     [PIX_FMT_BGRA] = {

  462.         .name = "bgra",

  463.         .nb_components = 4,

  464.         .log2_chroma_w = 0,

  465.         .log2_chroma_h = 0,

  466.         .comp = {

  467.             { 0, 3, 1, 0, 7 },        /* B */

  468.             { 0, 3, 2, 0, 7 },        /* G */

  469.             { 0, 3, 3, 0, 7 },        /* R */

  470.             { 0, 3, 4, 0, 7 },        /* A */

  471.         },

  472.         .flags = PIX_FMT_RGB,

  473.     },

  474.     [PIX_FMT_GRAY16BE] = {

  475.         .name = "gray16be",

  476.         .nb_components = 1,

  477.         .log2_chroma_w = 0,

  478.         .log2_chroma_h = 0,

  479.         .comp = {

  480.             { 0, 1, 1, 0, 15 },       /* Y */

  481.         },

  482.         .flags = PIX_FMT_BE,

  483.     },

  484.     [PIX_FMT_GRAY16LE] = {

  485.         .name = "gray16le",

  486.         .nb_components = 1,

  487.         .log2_chroma_w = 0,

  488.         .log2_chroma_h = 0,

  489.         .comp = {

  490.             { 0, 1, 1, 0, 15 },       /* Y */

  491.         },

  492.     },

  493.     [PIX_FMT_YUV440P] = {

  494.         .name = "yuv440p",

  495.         .nb_components = 3,

  496.         .log2_chroma_w = 0,

  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.         },

  503.         .flags = PIX_FMT_PLANAR,

  504.     },

  505.     [PIX_FMT_YUVJ440P] = {

  506.         .name = "yuvj440p",

  507.         .nb_components = 3,

  508.         .log2_chroma_w = 0,

  509.         .log2_chroma_h = 1,

  510.         .comp = {

  511.             { 0, 0, 1, 0, 7 },        /* Y */

  512.             { 1, 0, 1, 0, 7 },        /* U */

  513.             { 2, 0, 1, 0, 7 },        /* V */

  514.         },

  515.         .flags = PIX_FMT_PLANAR,

  516.     },

  517.     [PIX_FMT_YUVA420P] = {

  518.         .name = "yuva420p",

  519.         .nb_components = 4,

  520.         .log2_chroma_w = 1,

  521.         .log2_chroma_h = 1,

  522.         .comp = {

  523.             { 0, 0, 1, 0, 7 },        /* Y */

  524.             { 1, 0, 1, 0, 7 },        /* U */

  525.             { 2, 0, 1, 0, 7 },        /* V */

  526.             { 3, 0, 1, 0, 7 },        /* A */

  527.         },

  528.         .flags = PIX_FMT_PLANAR,

  529.     },

  530.     [PIX_FMT_VDPAU_H264] = {

  531.         .name = "vdpau_h264",

  532.         .log2_chroma_w = 1,

  533.         .log2_chroma_h = 1,

  534.         .flags = PIX_FMT_HWACCEL,

  535.     },

  536.     [PIX_FMT_VDPAU_MPEG1] = {

  537.         .name = "vdpau_mpeg1",

  538.         .log2_chroma_w = 1,

  539.         .log2_chroma_h = 1,

  540.         .flags = PIX_FMT_HWACCEL,

  541.     },

  542.     [PIX_FMT_VDPAU_MPEG2] = {

  543.         .name = "vdpau_mpeg2",

  544.         .log2_chroma_w = 1,

  545.         .log2_chroma_h = 1,

  546.         .flags = PIX_FMT_HWACCEL,

  547.     },

  548.     [PIX_FMT_VDPAU_WMV3] = {

  549.         .name = "vdpau_wmv3",

  550.         .log2_chroma_w = 1,

  551.         .log2_chroma_h = 1,

  552.         .flags = PIX_FMT_HWACCEL,

  553.     },

  554.     [PIX_FMT_VDPAU_VC1] = {

  555.         .name = "vdpau_vc1",

  556.         .log2_chroma_w = 1,

  557.         .log2_chroma_h = 1,

  558.         .flags = PIX_FMT_HWACCEL,

  559.     },

  560.     [PIX_FMT_VDPAU_MPEG4] = {

  561.         .name = "vdpau_mpeg4",

  562.         .log2_chroma_w = 1,

  563.         .log2_chroma_h = 1,

  564.         .flags = PIX_FMT_HWACCEL,

  565.     },

  566.     [PIX_FMT_RGB48BE] = {

  567.         .name = "rgb48be",

  568.         .nb_components = 3,

  569.         .log2_chroma_w = 0,

  570.         .log2_chroma_h = 0,

  571.         .comp = {

  572.             { 0, 5, 1, 0, 15 },       /* R */

  573.             { 0, 5, 3, 0, 15 },       /* G */

  574.             { 0, 5, 5, 0, 15 },       /* B */

  575.         },

  576.         .flags = PIX_FMT_RGB | PIX_FMT_BE,

  577.     },

  578.     [PIX_FMT_RGB48LE] = {

  579.         .name = "rgb48le",

  580.         .nb_components = 3,

  581.         .log2_chroma_w = 0,

  582.         .log2_chroma_h = 0,

  583.         .comp = {

  584.             { 0, 5, 1, 0, 15 },       /* R */

  585.             { 0, 5, 3, 0, 15 },       /* G */

  586.             { 0, 5, 5, 0, 15 },       /* B */

  587.         },

  588.         .flags = PIX_FMT_RGB,

  589.     },

  590.     [PIX_FMT_RGB565BE] = {

  591.         .name = "rgb565be",

  592.         .nb_components = 3,

  593.         .log2_chroma_w = 0,

  594.         .log2_chroma_h = 0,

  595.         .comp = {

  596.             { 0, 1, 0, 3, 4 },        /* R */

  597.             { 0, 1, 1, 5, 5 },        /* G */

  598.             { 0, 1, 1, 0, 4 },        /* B */

  599.         },

  600.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  601.     },

  602.     [PIX_FMT_RGB565LE] = {

  603.         .name = "rgb565le",

  604.         .nb_components = 3,

  605.         .log2_chroma_w = 0,

  606.         .log2_chroma_h = 0,

  607.         .comp = {

  608.             { 0, 1, 2, 3, 4 },        /* R */

  609.             { 0, 1, 1, 5, 5 },        /* G */

  610.             { 0, 1, 1, 0, 4 },        /* B */

  611.         },

  612.         .flags = PIX_FMT_RGB,

  613.     },

  614.     [PIX_FMT_RGB555BE] = {

  615.         .name = "rgb555be",

  616.         .nb_components = 3,

  617.         .log2_chroma_w = 0,

  618.         .log2_chroma_h = 0,

  619.         .comp = {

  620.             { 0, 1, 0, 2, 4 },        /* R */

  621.             { 0, 1, 1, 5, 4 },        /* G */

  622.             { 0, 1, 1, 0, 4 },        /* B */

  623.         },

  624.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  625.     },

  626.     [PIX_FMT_RGB555LE] = {

  627.         .name = "rgb555le",

  628.         .nb_components = 3,

  629.         .log2_chroma_w = 0,

  630.         .log2_chroma_h = 0,

  631.         .comp = {

  632.             { 0, 1, 2, 2, 4 },        /* R */

  633.             { 0, 1, 1, 5, 4 },        /* G */

  634.             { 0, 1, 1, 0, 4 },        /* B */

  635.         },

  636.         .flags = PIX_FMT_RGB,

  637.     },

  638.     [PIX_FMT_RGB444BE] = {

  639.         .name = "rgb444be",

  640.         .nb_components = 3,

  641.         .log2_chroma_w = 0,

  642.         .log2_chroma_h = 0,

  643.         .comp = {

  644.             { 0, 1, 0, 0, 3 },        /* R */

  645.             { 0, 1, 1, 4, 3 },        /* G */

  646.             { 0, 1, 1, 0, 3 },        /* B */

  647.         },

  648.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  649.     },

  650.     [PIX_FMT_RGB444LE] = {

  651.         .name = "rgb444le",

  652.         .nb_components = 3,

  653.         .log2_chroma_w = 0,

  654.         .log2_chroma_h = 0,

  655.         .comp = {

  656.             { 0, 1, 2, 0, 3 },        /* R */

  657.             { 0, 1, 1, 4, 3 },        /* G */

  658.             { 0, 1, 1, 0, 3 },        /* B */

  659.         },

  660.         .flags = PIX_FMT_RGB,

  661.     },

  662.     [PIX_FMT_BGR48BE] = {

  663.         .name = "bgr48be",

  664.         .nb_components = 3,

  665.         .log2_chroma_w = 0,

  666.         .log2_chroma_h = 0,

  667.         .comp = {

  668.             { 0, 5, 1, 0, 15 },       /* B */

  669.             { 0, 5, 3, 0, 15 },       /* G */

  670.             { 0, 5, 5, 0, 15 },       /* R */

  671.         },

  672.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  673.     },

  674.     [PIX_FMT_BGR48LE] = {

  675.         .name = "bgr48le",

  676.         .nb_components = 3,

  677.         .log2_chroma_w = 0,

  678.         .log2_chroma_h = 0,

  679.         .comp = {

  680.             { 0, 5, 1, 0, 15 },       /* B */

  681.             { 0, 5, 3, 0, 15 },       /* G */

  682.             { 0, 5, 5, 0, 15 },       /* R */

  683.         },

  684.         .flags = PIX_FMT_RGB,

  685.     },

  686.     [PIX_FMT_BGR565BE] = {

  687.         .name = "bgr565be",

  688.         .nb_components = 3,

  689.         .log2_chroma_w = 0,

  690.         .log2_chroma_h = 0,

  691.         .comp = {

  692.             { 0, 1, 0, 3, 4 },        /* B */

  693.             { 0, 1, 1, 5, 5 },        /* G */

  694.             { 0, 1, 1, 0, 4 },        /* R */

  695.         },

  696.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  697.     },

  698.     [PIX_FMT_BGR565LE] = {

  699.         .name = "bgr565le",

  700.         .nb_components = 3,

  701.         .log2_chroma_w = 0,

  702.         .log2_chroma_h = 0,

  703.         .comp = {

  704.             { 0, 1, 2, 3, 4 },        /* B */

  705.             { 0, 1, 1, 5, 5 },        /* G */

  706.             { 0, 1, 1, 0, 4 },        /* R */

  707.         },

  708.         .flags = PIX_FMT_RGB,

  709.     },

  710.     [PIX_FMT_BGR555BE] = {

  711.         .name = "bgr555be",

  712.         .nb_components = 3,

  713.         .log2_chroma_w = 0,

  714.         .log2_chroma_h = 0,

  715.         .comp = {

  716.             { 0, 1, 0, 2, 4 },       /* B */

  717.             { 0, 1, 1, 5, 4 },       /* G */

  718.             { 0, 1, 1, 0, 4 },       /* R */

  719.         },

  720.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  721.      },

  722.     [PIX_FMT_BGR555LE] = {

  723.         .name = "bgr555le",

  724.         .nb_components = 3,

  725.         .log2_chroma_w = 0,

  726.         .log2_chroma_h = 0,

  727.         .comp = {

  728.             { 0, 1, 2, 2, 4 },        /* B */

  729.             { 0, 1, 1, 5, 4 },        /* G */

  730.             { 0, 1, 1, 0, 4 },        /* R */

  731.         },

  732.         .flags = PIX_FMT_RGB,

  733.     },

  734.     [PIX_FMT_BGR444BE] = {

  735.         .name = "bgr444be",

  736.         .nb_components = 3,

  737.         .log2_chroma_w = 0,

  738.         .log2_chroma_h = 0,

  739.         .comp = {

  740.             { 0, 1, 0, 0, 3 },       /* B */

  741.             { 0, 1, 1, 4, 3 },       /* G */

  742.             { 0, 1, 1, 0, 3 },       /* R */

  743.         },

  744.         .flags = PIX_FMT_BE | PIX_FMT_RGB,

  745.      },

  746.     [PIX_FMT_BGR444LE] = {

  747.         .name = "bgr444le",

  748.         .nb_components = 3,

  749.         .log2_chroma_w = 0,

  750.         .log2_chroma_h = 0,

  751.         .comp = {

  752.             { 0, 1, 2, 0, 3 },        /* B */

  753.             { 0, 1, 1, 4, 3 },        /* G */

  754.             { 0, 1, 1, 0, 3 },        /* R */

  755.         },

  756.         .flags = PIX_FMT_RGB,

  757.     },

  758.     [PIX_FMT_VAAPI_MOCO] = {

  759.         .name = "vaapi_moco",

  760.         .log2_chroma_w = 1,

  761.         .log2_chroma_h = 1,

  762.         .flags = PIX_FMT_HWACCEL,

  763.     },

  764.     [PIX_FMT_VAAPI_IDCT] = {

  765.         .name = "vaapi_idct",

  766.         .log2_chroma_w = 1,

  767.         .log2_chroma_h = 1,

  768.         .flags = PIX_FMT_HWACCEL,

  769.     },

  770.     [PIX_FMT_VAAPI_VLD] = {

  771.         .name = "vaapi_vld",

  772.         .log2_chroma_w = 1,

  773.         .log2_chroma_h = 1,

  774.         .flags = PIX_FMT_HWACCEL,

  775.     },

  776.     [PIX_FMT_VDA_VLD] = {

  777.         .name = "vda_vld",

  778.         .log2_chroma_w = 1,

  779.         .log2_chroma_h = 1,

  780.         .flags = PIX_FMT_HWACCEL,

  781.     },

  782.     [PIX_FMT_YUV420P9LE] = {

  783.         .name = "yuv420p9le",

  784.         .nb_components = 3,

  785.         .log2_chroma_w = 1,

  786.         .log2_chroma_h = 1,

  787.         .comp = {

  788.             { 0, 1, 1, 0, 8 },        /* Y */

  789.             { 1, 1, 1, 0, 8 },        /* U */

  790.             { 2, 1, 1, 0, 8 },        /* V */

  791.         },

  792.         .flags = PIX_FMT_PLANAR,

  793.     },

  794.     [PIX_FMT_YUV420P9BE] = {

  795.         .name = "yuv420p9be",

  796.         .nb_components = 3,

  797.         .log2_chroma_w = 1,

  798.         .log2_chroma_h = 1,

  799.         .comp = {

  800.             { 0, 1, 1, 0, 8 },        /* Y */

  801.             { 1, 1, 1, 0, 8 },        /* U */

  802.             { 2, 1, 1, 0, 8 },        /* V */

  803.         },

  804.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  805.     },

  806.     [PIX_FMT_YUV420P10LE] = {

  807.         .name = "yuv420p10le",

  808.         .nb_components = 3,

  809.         .log2_chroma_w = 1,

  810.         .log2_chroma_h = 1,

  811.         .comp = {

  812.             { 0, 1, 1, 0, 9 },        /* Y */

  813.             { 1, 1, 1, 0, 9 },        /* U */

  814.             { 2, 1, 1, 0, 9 },        /* V */

  815.         },

  816.         .flags = PIX_FMT_PLANAR,

  817.     },

  818.     [PIX_FMT_YUV420P10BE] = {

  819.         .name = "yuv420p10be",

  820.         .nb_components = 3,

  821.         .log2_chroma_w = 1,

  822.         .log2_chroma_h = 1,

  823.         .comp = {

  824.             { 0, 1, 1, 0, 9 },        /* Y */

  825.             { 1, 1, 1, 0, 9 },        /* U */

  826.             { 2, 1, 1, 0, 9 },        /* V */

  827.         },

  828.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  829.     },

  830.     [PIX_FMT_YUV420P16LE] = {

  831.         .name = "yuv420p16le",

  832.         .nb_components = 3,

  833.         .log2_chroma_w = 1,

  834.         .log2_chroma_h = 1,

  835.         .comp = {

  836.             { 0, 1, 1, 0, 15 },        /* Y */

  837.             { 1, 1, 1, 0, 15 },        /* U */

  838.             { 2, 1, 1, 0, 15 },        /* V */

  839.         },

  840.         .flags = PIX_FMT_PLANAR,

  841.     },

  842.     [PIX_FMT_YUV420P16BE] = {

  843.         .name = "yuv420p16be",

  844.         .nb_components = 3,

  845.         .log2_chroma_w = 1,

  846.         .log2_chroma_h = 1,

  847.         .comp = {

  848.             { 0, 1, 1, 0, 15 },        /* Y */

  849.             { 1, 1, 1, 0, 15 },        /* U */

  850.             { 2, 1, 1, 0, 15 },        /* V */

  851.         },

  852.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  853.     },

  854.     [PIX_FMT_YUV422P9LE] = {

  855.         .name = "yuv422p9le",

  856.         .nb_components = 3,

  857.         .log2_chroma_w = 1,

  858.         .log2_chroma_h = 0,

  859.         .comp = {

  860.             { 0, 1, 1, 0, 8 },        /* Y */

  861.             { 1, 1, 1, 0, 8 },        /* U */

  862.             { 2, 1, 1, 0, 8 },        /* V */

  863.         },

  864.         .flags = PIX_FMT_PLANAR,

  865.     },

  866.     [PIX_FMT_YUV422P9BE] = {

  867.         .name = "yuv422p9be",

  868.         .nb_components = 3,

  869.         .log2_chroma_w = 1,

  870.         .log2_chroma_h = 0,

  871.         .comp = {

  872.             { 0, 1, 1, 0, 8 },        /* Y */

  873.             { 1, 1, 1, 0, 8 },        /* U */

  874.             { 2, 1, 1, 0, 8 },        /* V */

  875.         },

  876.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  877.     },

  878.     [PIX_FMT_YUV422P10LE] = {

  879.         .name = "yuv422p10le",

  880.         .nb_components = 3,

  881.         .log2_chroma_w = 1,

  882.         .log2_chroma_h = 0,

  883.         .comp = {

  884.             { 0, 1, 1, 0, 9 },        /* Y */

  885.             { 1, 1, 1, 0, 9 },        /* U */

  886.             { 2, 1, 1, 0, 9 },        /* V */

  887.         },

  888.         .flags = PIX_FMT_PLANAR,

  889.     },

  890.     [PIX_FMT_YUV422P10BE] = {

  891.         .name = "yuv422p10be",

  892.         .nb_components = 3,

  893.         .log2_chroma_w = 1,

  894.         .log2_chroma_h = 0,

  895.         .comp = {

  896.             { 0, 1, 1, 0, 9 },        /* Y */

  897.             { 1, 1, 1, 0, 9 },        /* U */

  898.             { 2, 1, 1, 0, 9 },        /* V */

  899.         },

  900.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  901.     },

  902.     [PIX_FMT_YUV422P16LE] = {

  903.         .name = "yuv422p16le",

  904.         .nb_components = 3,

  905.         .log2_chroma_w = 1,

  906.         .log2_chroma_h = 0,

  907.         .comp = {

  908.             { 0, 1, 1, 0, 15 },        /* Y */

  909.             { 1, 1, 1, 0, 15 },        /* U */

  910.             { 2, 1, 1, 0, 15 },        /* V */

  911.         },

  912.         .flags = PIX_FMT_PLANAR,

  913.     },

  914.     [PIX_FMT_YUV422P16BE] = {

  915.         .name = "yuv422p16be",

  916.         .nb_components = 3,

  917.         .log2_chroma_w = 1,

  918.         .log2_chroma_h = 0,

  919.         .comp = {

  920.             { 0, 1, 1, 0, 15 },        /* Y */

  921.             { 1, 1, 1, 0, 15 },        /* U */

  922.             { 2, 1, 1, 0, 15 },        /* V */

  923.         },

  924.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  925.     },

  926.     [PIX_FMT_YUV444P16LE] = {

  927.         .name = "yuv444p16le",

  928.         .nb_components = 3,

  929.         .log2_chroma_w = 0,

  930.         .log2_chroma_h = 0,

  931.         .comp = {

  932.             { 0, 1, 1, 0, 15 },        /* Y */

  933.             { 1, 1, 1, 0, 15 },        /* U */

  934.             { 2, 1, 1, 0, 15 },        /* V */

  935.         },

  936.         .flags = PIX_FMT_PLANAR,

  937.     },

  938.     [PIX_FMT_YUV444P16BE] = {

  939.         .name = "yuv444p16be",

  940.         .nb_components = 3,

  941.         .log2_chroma_w = 0,

  942.         .log2_chroma_h = 0,

  943.         .comp = {

  944.             { 0, 1, 1, 0, 15 },        /* Y */

  945.             { 1, 1, 1, 0, 15 },        /* U */

  946.             { 2, 1, 1, 0, 15 },        /* V */

  947.         },

  948.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  949.     },

  950.     [PIX_FMT_YUV444P10LE] = {

  951.         .name = "yuv444p10le",

  952.         .nb_components = 3,

  953.         .log2_chroma_w = 0,

  954.         .log2_chroma_h = 0,

  955.         .comp = {

  956.             { 0, 1, 1, 0, 9 },        /* Y */

  957.             { 1, 1, 1, 0, 9 },        /* U */

  958.             { 2, 1, 1, 0, 9 },        /* V */

  959.         },

  960.         .flags = PIX_FMT_PLANAR,

  961.     },

  962.     [PIX_FMT_YUV444P10BE] = {

  963.         .name = "yuv444p10be",

  964.         .nb_components = 3,

  965.         .log2_chroma_w = 0,

  966.         .log2_chroma_h = 0,

  967.         .comp = {

  968.             { 0, 1, 1, 0, 9 },        /* Y */

  969.             { 1, 1, 1, 0, 9 },        /* U */

  970.             { 2, 1, 1, 0, 9 },        /* V */

  971.         },

  972.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  973.     },

  974.     [PIX_FMT_YUV444P9LE] = {

  975.         .name = "yuv444p9le",

  976.         .nb_components = 3,

  977.         .log2_chroma_w = 0,

  978.         .log2_chroma_h = 0,

  979.         .comp = {

  980.             { 0, 1, 1, 0, 8 },        /* Y */

  981.             { 1, 1, 1, 0, 8 },        /* U */

  982.             { 2, 1, 1, 0, 8 },        /* V */

  983.         },

  984.         .flags = PIX_FMT_PLANAR,

  985.     },

  986.     [PIX_FMT_YUV444P9BE] = {

  987.         .name = "yuv444p9be",

  988.         .nb_components = 3,

  989.         .log2_chroma_w = 0,

  990.         .log2_chroma_h = 0,

  991.         .comp = {

  992.             { 0, 1, 1, 0, 8 },        /* Y */

  993.             { 1, 1, 1, 0, 8 },        /* U */

  994.             { 2, 1, 1, 0, 8 },        /* V */

  995.         },

  996.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR,

  997.     },

  998.     [PIX_FMT_DXVA2_VLD] = {

  999.         .name = "dxva2_vld",

  1000.         .log2_chroma_w = 1,

  1001.         .log2_chroma_h = 1,

  1002.         .flags = PIX_FMT_HWACCEL,

  1003.     },

  1004.     [PIX_FMT_Y400A] = {

  1005.         .name = "y400a",

  1006.         .nb_components = 2,

  1007.         .comp = {

  1008.             { 0, 1, 1, 0, 7 },        /* Y */

  1009.             { 0, 1, 2, 0, 7 },        /* A */

  1010.         },

  1011.     },

  1012.     [PIX_FMT_GBRP] = {

  1013.         .name = "gbrp",

  1014.         .nb_components = 3,

  1015.         .log2_chroma_w = 0,

  1016.         .log2_chroma_h = 0,

  1017.         .comp = {

  1018.             { 0, 0, 1, 0, 7 },        /* G */

  1019.             { 1, 0, 1, 0, 7 },        /* B */

  1020.             { 2, 0, 1, 0, 7 },        /* R */

  1021.         },

  1022.         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,

  1023.     },

  1024.     [PIX_FMT_GBRP9LE] = {

  1025.         .name = "gbrp9le",

  1026.         .nb_components = 3,

  1027.         .log2_chroma_w = 0,

  1028.         .log2_chroma_h = 0,

  1029.         .comp = {

  1030.             { 0, 1, 1, 0, 8 },        /* G */

  1031.             { 1, 1, 1, 0, 8 },        /* B */

  1032.             { 2, 1, 1, 0, 8 },        /* R */

  1033.         },

  1034.         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,

  1035.     },

  1036.     [PIX_FMT_GBRP9BE] = {

  1037.         .name = "gbrp9be",

  1038.         .nb_components = 3,

  1039.         .log2_chroma_w = 0,

  1040.         .log2_chroma_h = 0,

  1041.         .comp = {

  1042.             { 0, 1, 1, 0, 8 },        /* G */

  1043.             { 1, 1, 1, 0, 8 },        /* B */

  1044.             { 2, 1, 1, 0, 8 },        /* R */

  1045.         },

  1046.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,

  1047.     },

  1048.     [PIX_FMT_GBRP10LE] = {

  1049.         .name = "gbrp10le",

  1050.         .nb_components = 3,

  1051.         .log2_chroma_w = 0,

  1052.         .log2_chroma_h = 0,

  1053.         .comp = {

  1054.             { 0, 1, 1, 0, 9 },        /* G */

  1055.             { 1, 1, 1, 0, 9 },        /* B */

  1056.             { 2, 1, 1, 0, 9 },        /* R */

  1057.         },

  1058.         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,

  1059.     },

  1060.     [PIX_FMT_GBRP10BE] = {

  1061.         .name = "gbrp10be",

  1062.         .nb_components = 3,

  1063.         .log2_chroma_w = 0,

  1064.         .log2_chroma_h = 0,

  1065.         .comp = {

  1066.             { 0, 1, 1, 0, 9 },        /* G */

  1067.             { 1, 1, 1, 0, 9 },        /* B */

  1068.             { 2, 1, 1, 0, 9 },        /* R */

  1069.         },

  1070.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,

  1071.     },

  1072.     [PIX_FMT_GBRP16LE] = {

  1073.         .name = "gbrp16le",

  1074.         .nb_components = 3,

  1075.         .log2_chroma_w = 0,

  1076.         .log2_chroma_h = 0,

  1077.         .comp = {

  1078.             { 0, 1, 1, 0, 15 },       /* G */

  1079.             { 1, 1, 1, 0, 15 },       /* B */

  1080.             { 2, 1, 1, 0, 15 },       /* R */

  1081.         },

  1082.         .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,

  1083.     },

  1084.     [PIX_FMT_GBRP16BE] = {

  1085.         .name = "gbrp16be",

  1086.         .nb_components = 3,

  1087.         .log2_chroma_w = 0,

  1088.         .log2_chroma_h = 0,

  1089.         .comp = {

  1090.             { 0, 1, 1, 0, 15 },       /* G */

  1091.             { 1, 1, 1, 0, 15 },       /* B */

  1092.             { 2, 1, 1, 0, 15 },       /* R */

  1093.         },

  1094.         .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,

  1095.     },

  1096. };

  1097. 

  1098. static enum PixelFormat get_pix_fmt_internal(const char *name)

  1099. {

  1100.     enum PixelFormat pix_fmt;

  1101. 

  1102.     for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)

  1103.         if (av_pix_fmt_descriptors[pix_fmt].name &&

  1104.             !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))

  1105.             return pix_fmt;

  1106. 

  1107.     return PIX_FMT_NONE;

  1108. }

  1109. 

  1110. const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt)

  1111. {

  1112.     return (unsigned)pix_fmt < PIX_FMT_NB ?

  1113.         av_pix_fmt_descriptors[pix_fmt].name : NULL;

  1114. }

  1115. 

  1116. #if HAVE_BIGENDIAN

  1117. #   define X_NE(be, le) be

  1118. #else

  1119. #   define X_NE(be, le) le

  1120. #endif

  1121. 

  1122. enum PixelFormat av_get_pix_fmt(const char *name)

  1123. {

  1124.     enum PixelFormat pix_fmt;

  1125. 

  1126.     if (!strcmp(name, "rgb32"))

  1127.         name = X_NE("argb", "bgra");

  1128.     else if (!strcmp(name, "bgr32"))

  1129.         name = X_NE("abgr", "rgba");

  1130. 

  1131.     pix_fmt = get_pix_fmt_internal(name);

  1132.     if (pix_fmt == PIX_FMT_NONE) {

  1133.         char name2[32];

  1134. 

  1135.         snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));

  1136.         pix_fmt = get_pix_fmt_internal(name2);

  1137.     }

  1138.     return pix_fmt;

  1139. }

  1140. 

  1141. int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)

  1142. {

  1143.     int c, bits = 0;

  1144.     int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;

  1145. 

  1146.     for (c = 0; c < pixdesc->nb_components; c++) {

  1147.         int s = c == 1 || c == 2 ? 0 : log2_pixels;

  1148.         bits += (pixdesc->comp[c].depth_minus1 + 1) << s;

  1149.     }

  1150. 

  1151.     return bits >> log2_pixels;

  1152. }

  1153. 

  1154. char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)

  1155. {

  1156.     /* print header */

  1157.     if (pix_fmt < 0) {

  1158.        snprintf (buf, buf_size, "name" " nb_components" " nb_bits");

  1159.     } else {

  1160.         const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];

  1161.         snprintf(buf, buf_size, "%-11s %7d %10d", pixdesc->name,

  1162.                  pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));

  1163.     }

  1164. 

  1165.     return buf;

  1166. }