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https://github.com/FFmpeg/FFmpeg.git
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8a3227968c
Originally committed as revision 27190 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/*
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* software YUV to RGB converter using mediaLib
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*
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* Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <mlib_types.h>
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#include <mlib_status.h>
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#include <mlib_sys.h>
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#include <mlib_video.h>
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#include <inttypes.h>
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#include <stdlib.h>
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#include <assert.h>
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#include "swscale.h"
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static int mlib_YUV2ARGB420_32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
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int srcSliceH, uint8_t* dst[], int dstStride[]){
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if(c->srcFormat == PIX_FMT_YUV422P){
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srcStride[1] *= 2;
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srcStride[2] *= 2;
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}
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assert(srcStride[1] == srcStride[2]);
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mlib_VideoColorYUV2ARGB420(dst[0]+srcSliceY*dstStride[0], src[0], src[1], src[2], c->dstW,
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srcSliceH, dstStride[0], srcStride[0], srcStride[1]);
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return srcSliceH;
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}
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static int mlib_YUV2ABGR420_32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
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int srcSliceH, uint8_t* dst[], int dstStride[]){
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if(c->srcFormat == PIX_FMT_YUV422P){
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srcStride[1] *= 2;
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srcStride[2] *= 2;
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}
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assert(srcStride[1] == srcStride[2]);
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mlib_VideoColorYUV2ABGR420(dst[0]+srcSliceY*dstStride[0], src[0], src[1], src[2], c->dstW,
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srcSliceH, dstStride[0], srcStride[0], srcStride[1]);
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return srcSliceH;
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}
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static int mlib_YUV2RGB420_24(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
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int srcSliceH, uint8_t* dst[], int dstStride[]){
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if(c->srcFormat == PIX_FMT_YUV422P){
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srcStride[1] *= 2;
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srcStride[2] *= 2;
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}
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assert(srcStride[1] == srcStride[2]);
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mlib_VideoColorYUV2RGB420(dst[0]+srcSliceY*dstStride[0], src[0], src[1], src[2], c->dstW,
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srcSliceH, dstStride[0], srcStride[0], srcStride[1]);
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return srcSliceH;
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}
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SwsFunc yuv2rgb_init_mlib(SwsContext *c)
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{
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switch(c->dstFormat){
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case PIX_FMT_RGB24: return mlib_YUV2RGB420_24;
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case PIX_FMT_BGR32: return mlib_YUV2ARGB420_32;
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case PIX_FMT_RGB32: return mlib_YUV2ABGR420_32;
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default: return NULL;
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}
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}
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