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libbpg-0.9.3

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King_DuckZ 2015-01-16 13:46:18 +01:00
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libavutil/pixdesc.c Normal file
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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 "avassert.h"
#include "avstring.h"
#include "common.h"
#include "pixfmt.h"
#include "pixdesc.h"
#include "internal.h"
#include "intreadwrite.h"
#include "version.h"
typedef struct {
enum AVPixelFormat pix_fmt;
AVPixFmtDescriptor desc;
} AVPixFmtDescriptorEntry;
static const AVPixFmtDescriptorEntry pix_desc[] = {
#ifdef USE_VAR_BIT_DEPTH
{
AV_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 */
},
}
},
{
AV_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 */
},
.flags = AV_PIX_FMT_FLAG_PLANAR,
}
},
{
AV_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 */
},
.flags = AV_PIX_FMT_FLAG_PLANAR,
}
},
{
AV_PIX_FMT_GRAY16LE,
{
//.name = "gray16le",
.nb_components = 1,
.log2_chroma_w = 0,
.log2_chroma_h = 0,
.comp = {
{ 0, 1, 1, 0, 15 }, /* Y */
},
//.alias = "y16le",
},
},
#else
{
AV_PIX_FMT_YUV420P,
{
//.name = "yuv420p",
.nb_components = 3,
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.comp = {
{ 0, 1, 1, 0, 7 }, /* Y */
{ 1, 1, 1, 0, 7 }, /* U */
{ 2, 1, 1, 0, 7 }, /* V */
},
}
},
{
AV_PIX_FMT_YUV422P16LE,
{
//.name = "yuv422p",
.nb_components = 3,
.log2_chroma_w = 1,
.log2_chroma_h = 0,
.comp = {
{ 0, 1, 1, 0, 7 }, /* Y */
{ 1, 1, 1, 0, 7 }, /* U */
{ 2, 1, 1, 0, 7 }, /* V */
},
.flags = AV_PIX_FMT_FLAG_PLANAR,
}
},
{
AV_PIX_FMT_YUV444P,
{
//.name = "yuv444p",
.nb_components = 3,
.log2_chroma_w = 0,
.log2_chroma_h = 0,
.comp = {
{ 0, 1, 1, 0, 7 }, /* Y */
{ 1, 1, 1, 0, 7 }, /* U */
{ 2, 1, 1, 0, 7 }, /* V */
},
.flags = AV_PIX_FMT_FLAG_PLANAR,
}
},
{
AV_PIX_FMT_GRAY8,
{
//.name = "gray",
.nb_components = 1,
.log2_chroma_w = 0,
.log2_chroma_h = 0,
.comp = {
{ 0, 1, 1, 0, 7 }, /* Y */
},
},
},
#endif
};
#define countof(x) (sizeof(x) / sizeof(x[0]))
const AVPixFmtDescriptor *av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
{
int i;
for(i = 0; i < countof(pix_desc); i++) {
if (pix_desc[i].pix_fmt == pix_fmt) {
return &pix_desc[i].desc;
}
}
return NULL;
}