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ffmpeg/libavutil/pixdesc.c
Michael Niedermayer ec7f0b527c Merge remote-tracking branch 'khirnov/release/0.7' into release/0.8 
* khirnov/release/0.7: (64 commits)
  rv34: Check for invalid slice offsets
  rv34: Fix potential overreads
  rv34: Avoid NULL dereference on corrupted bitstream
  rv10: Reject slices that does not have the same type as the first one
  lavf: Fix context pointer in av_open_input_stream when avformat_open_input fails
  oggdec: fix out of bound write in the ogg demuxer
  Fixed size given to init_get_bits().
  smacker: fix a few off by 1 errors
  Check for invalid VLC value in smacker decoder.
  Check and propagate errors when VLC trees cannot be built in smacker decoder.
  Fixed off by one packet size allocation in the smacker demuxer.
  Check for invalid packet size in the smacker demuxer.
  ape demuxer: fix segfault on memory allocation failure.
  xan: Add some buffer checks (cherry picked from commit 0872bb23b4)
  Fixed size given to init_get_bits() in xan decoder. (cherry picked from commit 393d5031c6)
  smacker demuxer: handle possible av_realloc() failure.
  Fixed segfault with wavpack decoder on corrupted decorrelation terms sub-blocks.
  cljr: init_get_bits size in bits instead of bytes (cherry picked from commit 0c1f5b93d9)
  indeo2: fail if input buffer too small (cherry picked from commit b7ce4f1d1c)
  indeo2: init_get_bits size in bits instead of bytes (cherry picked from commit 68ca330cbd)
  ...

Conflicts:
	ffmpeg.c
	libavdevice/alsa-audio.h
	libavformat/gxf.c
	libswscale/x86/swscale_template.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-22 01:10:24 +02:00

1012 lines
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/*
* pixel format descriptor
* Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <string.h>
#include "pixfmt.h"
#include "pixdesc.h"
#include "intreadwrite.h"
void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
{
AVComponentDescriptor comp= desc->comp[c];
int plane= comp.plane;
int depth= comp.depth_minus1+1;
int mask = (1<<depth)-1;
int shift= comp.shift;
int step = comp.step_minus1+1;
int flags= desc->flags;
if (flags & PIX_FMT_BITSTREAM){
int skip = x*step + comp.offset_plus1-1;
const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
int shift = 8 - depth - (skip&7);
while(w--){
int val = (*p >> shift) & mask;
if(read_pal_component)
val= data[1][4*val + c];
shift -= step;
p -= shift>>3;
shift &= 7;
*dst++= val;
}
} else {
const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
int is_8bit = shift + depth <= 8;
if (is_8bit)
p += !!(flags & PIX_FMT_BE);
while(w--){
int val = is_8bit ? *p :
flags & PIX_FMT_BE ? AV_RB16(p) : AV_RL16(p);
val = (val>>shift) & mask;
if(read_pal_component)
val= data[1][4*val + c];
p+= step;
*dst++= val;
}
}
}
void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
{
AVComponentDescriptor comp = desc->comp[c];
int plane = comp.plane;
int depth = comp.depth_minus1+1;
int step = comp.step_minus1+1;
int flags = desc->flags;
if (flags & PIX_FMT_BITSTREAM) {
int skip = x*step + comp.offset_plus1-1;
uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
int shift = 8 - depth - (skip&7);
while (w--) {
*p |= *src++ << shift;
shift -= step;
p -= shift>>3;
shift &= 7;
}
} else {
int shift = comp.shift;
uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
if (shift + depth <= 8) {
p += !!(flags & PIX_FMT_BE);
while (w--) {
*p |= (*src++<<shift);
p += step;
}
} else {
while (w--) {
if (flags & PIX_FMT_BE) {
uint16_t val = AV_RB16(p) | (*src++<<shift);
AV_WB16(p, val);
} else {
uint16_t val = AV_RL16(p) | (*src++<<shift);
AV_WL16(p, val);
}
p+= step;
}
}
}
}
const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
[PIX_FMT_YUV420P] = {
.name = "yuv420p",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_YUYV422] = {
.name = "yuyv422",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,7}, /* Y */
{0,3,2,0,7}, /* U */
{0,3,4,0,7}, /* V */
},
},
[PIX_FMT_RGB24] = {
.name = "rgb24",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,2,1,0,7}, /* R */
{0,2,2,0,7}, /* G */
{0,2,3,0,7}, /* B */
},
},
[PIX_FMT_BGR24] = {
.name = "bgr24",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,2,1,0,7}, /* B */
{0,2,2,0,7}, /* G */
{0,2,3,0,7}, /* R */
},
},
[PIX_FMT_YUV422P] = {
.name = "yuv422p",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 0,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_YUV444P] = {
.name = "yuv444p",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_YUV410P] = {
.name = "yuv410p",
.nb_components= 3,
.log2_chroma_w= 2,
.log2_chroma_h= 2,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_YUV411P] = {
.name = "yuv411p",
.nb_components= 3,
.log2_chroma_w= 2,
.log2_chroma_h= 0,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_GRAY8] = {
.name = "gray",
.nb_components= 1,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,0,7}, /* Y */
},
.flags = PIX_FMT_PAL,
},
[PIX_FMT_MONOWHITE] = {
.name = "monow",
.nb_components= 1,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,0,0}, /* Y */
},
.flags = PIX_FMT_BITSTREAM,
},
[PIX_FMT_MONOBLACK] = {
.name = "monob",
.nb_components= 1,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,7,0}, /* Y */
},
.flags = PIX_FMT_BITSTREAM,
},
[PIX_FMT_PAL8] = {
.name = "pal8",
.nb_components= 1,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,0,7},
},
.flags = PIX_FMT_PAL,
},
[PIX_FMT_YUVJ420P] = {
.name = "yuvj420p",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_YUVJ422P] = {
.name = "yuvj422p",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 0,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_YUVJ444P] = {
.name = "yuvj444p",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_XVMC_MPEG2_MC] = {
.name = "xvmcmc",
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_XVMC_MPEG2_IDCT] = {
.name = "xvmcidct",
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_UYVY422] = {
.name = "uyvy422",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 0,
.comp = {
{0,1,2,0,7}, /* Y */
{0,3,1,0,7}, /* U */
{0,3,3,0,7}, /* V */
},
},
[PIX_FMT_UYYVYY411] = {
.name = "uyyvyy411",
.nb_components= 3,
.log2_chroma_w= 2,
.log2_chroma_h= 0,
.comp = {
{0,3,2,0,7}, /* Y */
{0,5,1,0,7}, /* U */
{0,5,4,0,7}, /* V */
},
},
[PIX_FMT_BGR8] = {
.name = "bgr8",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,6,1}, /* B */
{0,0,1,3,2}, /* G */
{0,0,1,0,2}, /* R */
},
.flags = PIX_FMT_PAL,
},
[PIX_FMT_BGR4] = {
.name = "bgr4",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,3,1,0,0}, /* B */
{0,3,2,0,1}, /* G */
{0,3,4,0,0}, /* R */
},
.flags = PIX_FMT_BITSTREAM,
},
[PIX_FMT_BGR4_BYTE] = {
.name = "bgr4_byte",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,3,0}, /* B */
{0,0,1,1,1}, /* G */
{0,0,1,0,0}, /* R */
},
.flags = PIX_FMT_PAL,
},
[PIX_FMT_RGB8] = {
.name = "rgb8",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,6,1}, /* R */
{0,0,1,3,2}, /* G */
{0,0,1,0,2}, /* B */
},
.flags = PIX_FMT_PAL,
},
[PIX_FMT_RGB4] = {
.name = "rgb4",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,3,1,0,0}, /* R */
{0,3,2,0,1}, /* G */
{0,3,4,0,0}, /* B */
},
.flags = PIX_FMT_BITSTREAM,
},
[PIX_FMT_RGB4_BYTE] = {
.name = "rgb4_byte",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,0,1,3,0}, /* R */
{0,0,1,1,1}, /* G */
{0,0,1,0,0}, /* B */
},
.flags = PIX_FMT_PAL,
},
[PIX_FMT_NV12] = {
.name = "nv12",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,0,1,0,7}, /* Y */
{1,1,1,0,7}, /* U */
{1,1,2,0,7}, /* V */
},
},
[PIX_FMT_NV21] = {
.name = "nv21",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,0,1,0,7}, /* Y */
{1,1,1,0,7}, /* V */
{1,1,2,0,7}, /* U */
},
},
[PIX_FMT_ARGB] = {
.name = "argb",
.nb_components= 4,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,3,1,0,7}, /* A */
{0,3,2,0,7}, /* R */
{0,3,3,0,7}, /* G */
{0,3,4,0,7}, /* B */
},
},
[PIX_FMT_RGBA] = {
.name = "rgba",
.nb_components= 4,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,3,1,0,7}, /* R */
{0,3,2,0,7}, /* G */
{0,3,3,0,7}, /* B */
{0,3,4,0,7}, /* A */
},
},
[PIX_FMT_ABGR] = {
.name = "abgr",
.nb_components= 4,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,3,1,0,7}, /* A */
{0,3,2,0,7}, /* B */
{0,3,3,0,7}, /* G */
{0,3,4,0,7}, /* R */
},
},
[PIX_FMT_BGRA] = {
.name = "bgra",
.nb_components= 4,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,3,1,0,7}, /* B */
{0,3,2,0,7}, /* G */
{0,3,3,0,7}, /* R */
{0,3,4,0,7}, /* A */
},
},
[PIX_FMT_GRAY16BE] = {
.name = "gray16be",
.nb_components= 1,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,15}, /* Y */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_GRAY16LE] = {
.name = "gray16le",
.nb_components= 1,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,15}, /* Y */
},
},
[PIX_FMT_YUV440P] = {
.name = "yuv440p",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 1,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_YUVJ440P] = {
.name = "yuvj440p",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 1,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
},
},
[PIX_FMT_YUVA420P] = {
.name = "yuva420p",
.nb_components= 4,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,0,1,0,7}, /* Y */
{1,0,1,0,7}, /* U */
{2,0,1,0,7}, /* V */
{3,0,1,0,7}, /* A */
},
},
[PIX_FMT_VDPAU_H264] = {
.name = "vdpau_h264",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_VDPAU_MPEG1] = {
.name = "vdpau_mpeg1",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_VDPAU_MPEG2] = {
.name = "vdpau_mpeg2",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_VDPAU_WMV3] = {
.name = "vdpau_wmv3",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_VDPAU_VC1] = {
.name = "vdpau_vc1",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_VDPAU_MPEG4] = {
.name = "vdpau_mpeg4",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_RGB48BE] = {
.name = "rgb48be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,5,1,0,15}, /* R */
{0,5,3,0,15}, /* G */
{0,5,5,0,15}, /* B */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_RGB48LE] = {
.name = "rgb48le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,5,1,0,15}, /* R */
{0,5,3,0,15}, /* G */
{0,5,5,0,15}, /* B */
},
},
[PIX_FMT_RGB565BE] = {
.name = "rgb565be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,0,3,4}, /* R */
{0,1,1,5,5}, /* G */
{0,1,1,0,4}, /* B */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_RGB565LE] = {
.name = "rgb565le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,2,3,4}, /* R */
{0,1,1,5,5}, /* G */
{0,1,1,0,4}, /* B */
},
},
[PIX_FMT_RGB555BE] = {
.name = "rgb555be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,0,2,4}, /* R */
{0,1,1,5,4}, /* G */
{0,1,1,0,4}, /* B */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_RGB555LE] = {
.name = "rgb555le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,2,2,4}, /* R */
{0,1,1,5,4}, /* G */
{0,1,1,0,4}, /* B */
},
},
[PIX_FMT_RGB444BE] = {
.name = "rgb444be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,0,0,3}, /* R */
{0,1,1,4,3}, /* G */
{0,1,1,0,3}, /* B */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_RGB444LE] = {
.name = "rgb444le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,2,0,3}, /* R */
{0,1,1,4,3}, /* G */
{0,1,1,0,3}, /* B */
},
},
[PIX_FMT_BGR48BE] = {
.name = "bgr48be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,5,1,0,15}, /* B */
{0,5,3,0,15}, /* G */
{0,5,5,0,15}, /* R */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_BGR48LE] = {
.name = "bgr48le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,5,1,0,15}, /* B */
{0,5,3,0,15}, /* G */
{0,5,5,0,15}, /* R */
},
},
[PIX_FMT_BGR565BE] = {
.name = "bgr565be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,0,3,4}, /* B */
{0,1,1,5,5}, /* G */
{0,1,1,0,4}, /* R */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_BGR565LE] = {
.name = "bgr565le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,2,3,4}, /* B */
{0,1,1,5,5}, /* G */
{0,1,1,0,4}, /* R */
},
},
[PIX_FMT_BGR555BE] = {
.name = "bgr555be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,0,2,4}, /* B */
{0,1,1,5,4}, /* G */
{0,1,1,0,4}, /* R */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_BGR555LE] = {
.name = "bgr555le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,2,2,4}, /* B */
{0,1,1,5,4}, /* G */
{0,1,1,0,4}, /* R */
},
},
[PIX_FMT_BGR444BE] = {
.name = "bgr444be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,0,0,3}, /* B */
{0,1,1,4,3}, /* G */
{0,1,1,0,3}, /* R */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_BGR444LE] = {
.name = "bgr444le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,2,0,3}, /* B */
{0,1,1,4,3}, /* G */
{0,1,1,0,3}, /* R */
},
},
[PIX_FMT_VAAPI_MOCO] = {
.name = "vaapi_moco",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_VAAPI_IDCT] = {
.name = "vaapi_idct",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_VAAPI_VLD] = {
.name = "vaapi_vld",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_YUV420P9LE] = {
.name = "yuv420p9le",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,1,1,0,8}, /* Y */
{1,1,1,0,8}, /* U */
{2,1,1,0,8}, /* V */
},
},
[PIX_FMT_YUV420P9BE] = {
.name = "yuv420p9be",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,1,1,0,8}, /* Y */
{1,1,1,0,8}, /* U */
{2,1,1,0,8}, /* V */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_YUV420P10LE] = {
.name = "yuv420p10le",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,1,1,0,9}, /* Y */
{1,1,1,0,9}, /* U */
{2,1,1,0,9}, /* V */
},
},
[PIX_FMT_YUV420P10BE] = {
.name = "yuv420p10be",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,1,1,0,9}, /* Y */
{1,1,1,0,9}, /* U */
{2,1,1,0,9}, /* V */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_YUV420P16LE] = {
.name = "yuv420p16le",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,1,1,0,15}, /* Y */
{1,1,1,0,15}, /* U */
{2,1,1,0,15}, /* V */
},
},
[PIX_FMT_YUV420P16BE] = {
.name = "yuv420p16be",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 1,
.comp = {
{0,1,1,0,15}, /* Y */
{1,1,1,0,15}, /* U */
{2,1,1,0,15}, /* V */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_YUV422P10LE] = {
.name = "yuv422p10le",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,9}, /* Y */
{1,1,1,0,9}, /* U */
{2,1,1,0,9}, /* V */
},
},
[PIX_FMT_YUV422P10BE] = {
.name = "yuv422p10be",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,9}, /* Y */
{1,1,1,0,9}, /* U */
{2,1,1,0,9}, /* V */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_YUV422P16LE] = {
.name = "yuv422p16le",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,15}, /* Y */
{1,1,1,0,15}, /* U */
{2,1,1,0,15}, /* V */
},
},
[PIX_FMT_YUV422P16BE] = {
.name = "yuv422p16be",
.nb_components= 3,
.log2_chroma_w= 1,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,15}, /* Y */
{1,1,1,0,15}, /* U */
{2,1,1,0,15}, /* V */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_YUV444P16LE] = {
.name = "yuv444p16le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,15}, /* Y */
{1,1,1,0,15}, /* U */
{2,1,1,0,15}, /* V */
},
},
[PIX_FMT_YUV444P16BE] = {
.name = "yuv444p16be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,15}, /* Y */
{1,1,1,0,15}, /* U */
{2,1,1,0,15}, /* V */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_YUV444P10LE] = {
.name = "yuv444p10le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,9}, /* Y */
{1,1,1,0,9}, /* U */
{2,1,1,0,9}, /* V */
},
},
[PIX_FMT_YUV444P10BE] = {
.name = "yuv444p10be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,9}, /* Y */
{1,1,1,0,9}, /* U */
{2,1,1,0,9}, /* V */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_YUV444P9LE] = {
.name = "yuv444p9le",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,8}, /* Y */
{1,1,1,0,8}, /* U */
{2,1,1,0,8}, /* V */
},
},
[PIX_FMT_YUV444P9BE] = {
.name = "yuv444p9be",
.nb_components= 3,
.log2_chroma_w= 0,
.log2_chroma_h= 0,
.comp = {
{0,1,1,0,8}, /* Y */
{1,1,1,0,8}, /* U */
{2,1,1,0,8}, /* V */
},
.flags = PIX_FMT_BE,
},
[PIX_FMT_DXVA2_VLD] = {
.name = "dxva2_vld",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
[PIX_FMT_GRAY8A] = {
.name = "gray8a",
.nb_components= 2,
.comp = {
{0,1,1,0,7}, /* Y */
{0,1,2,0,7}, /* A */
},
},
};
static enum PixelFormat get_pix_fmt_internal(const char *name)
{
enum PixelFormat pix_fmt;
for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
if (av_pix_fmt_descriptors[pix_fmt].name &&
!strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
return pix_fmt;
return PIX_FMT_NONE;
}
const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt)
{
return (unsigned)pix_fmt < PIX_FMT_NB ?
av_pix_fmt_descriptors[pix_fmt].name : NULL;
}
#if HAVE_BIGENDIAN
# define X_NE(be, le) be
#else
# define X_NE(be, le) le
#endif
enum PixelFormat av_get_pix_fmt(const char *name)
{
enum PixelFormat pix_fmt;
if (!strcmp(name, "rgb32"))
name = X_NE("argb", "bgra");
else if (!strcmp(name, "bgr32"))
name = X_NE("abgr", "rgba");
pix_fmt = get_pix_fmt_internal(name);
if (pix_fmt == PIX_FMT_NONE) {
char name2[32];
snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
pix_fmt = get_pix_fmt_internal(name2);
}
return pix_fmt;
}
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
{
int c, bits = 0;
int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
for (c = 0; c < pixdesc->nb_components; c++) {
int s = c==1 || c==2 ? 0 : log2_pixels;
bits += (pixdesc->comp[c].depth_minus1+1) << s;
}
return bits >> log2_pixels;
}
char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
{
/* print header */
if (pix_fmt < 0) {
snprintf (buf, buf_size, "name " " nb_components" " nb_bits");
} else {
const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];
snprintf(buf, buf_size, "%-11s %7d %10d",
pixdesc->name, pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));
}
return buf;
}
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