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https://github.com/FFmpeg/FFmpeg.git
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73435f006b
Originally committed as revision 18866 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*
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* yuv2rgb_mlib.c, Software YUV to RGB coverter using mediaLib
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*
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* Copyright (C) 2000, Håkan Hjort <d95hjort@dtek.chalmers.se>
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* All Rights Reserved.
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*
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* This file is part of mpeg2dec, a free MPEG-2 video decoder
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*
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* mpeg2dec is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* mpeg2dec 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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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 "libvo/img_format.h" //FIXME try to reduce dependency of such stuff
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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 == IMGFMT_422P){
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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 == IMGFMT_422P){
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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 == IMGFMT_422P){
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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 IMGFMT_RGB24: return mlib_YUV2RGB420_24;
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case IMGFMT_RGB32: return mlib_YUV2ARGB420_32;
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case IMGFMT_BGR32: return mlib_YUV2ABGR420_32;
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default: return NULL;
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}
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}
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