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ffmpeg / libswscale / yuv2rgb_mlib.c @ 2c86a578

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/* 
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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, H?kan 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 mpeg2dec; 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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