mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
e9e12f0e11
Originally committed as revision 19878 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/*
|
|
* yuv2rgb_mlib.c, Software YUV to RGB coverter using mediaLib
|
|
*
|
|
* Copyright (C) 2000, Håkan Hjort <d95hjort@dtek.chalmers.se>
|
|
* All Rights Reserved.
|
|
*
|
|
* This file is part of mpeg2dec, a free MPEG-2 video decoder
|
|
*
|
|
* mpeg2dec is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* mpeg2dec 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GNU Make; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
|
|
#include <mlib_types.h>
|
|
#include <mlib_status.h>
|
|
#include <mlib_sys.h>
|
|
#include <mlib_video.h>
|
|
#include <inttypes.h>
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
|
|
#include "swscale.h"
|
|
|
|
static int mlib_YUV2ARGB420_32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
if(c->srcFormat == PIX_FMT_YUV422P){
|
|
srcStride[1] *= 2;
|
|
srcStride[2] *= 2;
|
|
}
|
|
|
|
assert(srcStride[1] == srcStride[2]);
|
|
|
|
mlib_VideoColorYUV2ARGB420(dst[0]+srcSliceY*dstStride[0], src[0], src[1], src[2], c->dstW,
|
|
srcSliceH, dstStride[0], srcStride[0], srcStride[1]);
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int mlib_YUV2ABGR420_32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
if(c->srcFormat == PIX_FMT_YUV422P){
|
|
srcStride[1] *= 2;
|
|
srcStride[2] *= 2;
|
|
}
|
|
|
|
assert(srcStride[1] == srcStride[2]);
|
|
|
|
mlib_VideoColorYUV2ABGR420(dst[0]+srcSliceY*dstStride[0], src[0], src[1], src[2], c->dstW,
|
|
srcSliceH, dstStride[0], srcStride[0], srcStride[1]);
|
|
return srcSliceH;
|
|
}
|
|
|
|
static int mlib_YUV2RGB420_24(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
|
|
int srcSliceH, uint8_t* dst[], int dstStride[]){
|
|
if(c->srcFormat == PIX_FMT_YUV422P){
|
|
srcStride[1] *= 2;
|
|
srcStride[2] *= 2;
|
|
}
|
|
|
|
assert(srcStride[1] == srcStride[2]);
|
|
|
|
mlib_VideoColorYUV2RGB420(dst[0]+srcSliceY*dstStride[0], src[0], src[1], src[2], c->dstW,
|
|
srcSliceH, dstStride[0], srcStride[0], srcStride[1]);
|
|
return srcSliceH;
|
|
}
|
|
|
|
|
|
SwsFunc yuv2rgb_init_mlib(SwsContext *c)
|
|
{
|
|
switch(c->dstFormat){
|
|
case PIX_FMT_RGB24: return mlib_YUV2RGB420_24;
|
|
case PIX_FMT_BGR32: return mlib_YUV2ARGB420_32;
|
|
case PIX_FMT_RGB32: return mlib_YUV2ABGR420_32;
|
|
default: return NULL;
|
|
}
|
|
}
|
|
|