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101 (yuv2rgb with mpeg1,...) ;) 

simple copy if possible (same format, no scaling, ...)

Originally committed as revision 4556 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2002-02-06 21:59:23 +00:00
parent 370799068d
commit b6654a5464
1 changed files with 115 additions and 6 deletions
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121
postproc/swscale.c
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@ -557,7 +557,7 @@ void SwScale_YV12slice(unsigned char* src[], int srcStride[], int srcSliceY ,
if(!context) context=getSwsContextFromCmdLine(srcW, srcH, IMGFMT_YV12, dstW, dstH, dstFormat);
swScale(context, src, srcStride, srcSliceY, srcSliceH, dst, dstStride3);
context->swScale(context, src, srcStride, srcSliceY, srcSliceH, dst, dstStride3);
}
// will use sws_flags & src_filter (from cmd line)
@ -1111,12 +1111,110 @@ cpuCaps= gCpuCaps;
/* Warper functions for yuv2bgr */
static void planarYuvToBgr(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[]){
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
if(c->srcFormat==IMGFMT_YV12)
yuv2rgb( dst[0],src[0],src[1],src[2],c->srcW,c->srcH,dstStride[0],srcStride[0],srcStride[1] );
yuv2rgb( dst,src[0],src[1],src[2],c->srcW,srcSliceH,dstStride[0],srcStride[0],srcStride[1] );
else /* I420 & IYUV */
yuv2rgb( dst[0],src[0],src[2],src[1],c->srcW,c->srcH,dstStride[0],srcStride[0],srcStride[1] );
yuv2rgb( dst,src[0],src[2],src[1],c->srcW,srcSliceH,dstStride[0],srcStride[0],srcStride[1] );
}
/* unscaled copy like stuff (assumes nearly identical formats) */
static void simpleCopy(SwsContext *c, uint8_t* srcParam[], int srcStrideParam[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
int srcStride[3];
uint8_t *src[3];
uint8_t *dst[3];
if(c->srcFormat == IMGFMT_I420){
src[0]= srcParam[0];
src[1]= srcParam[2];
src[2]= srcParam[1];
srcStride[0]= srcStrideParam[0];
srcStride[1]= srcStrideParam[2];
srcStride[2]= srcStrideParam[1];
}
else if(c->srcFormat==IMGFMT_YV12){
src[0]= srcParam[0];
src[1]= srcParam[1];
src[2]= srcParam[2];
srcStride[0]= srcStrideParam[0];
srcStride[1]= srcStrideParam[1];
srcStride[2]= srcStrideParam[2];
}
else if(isPacked(c->srcFormat) || isGray(c->srcFormat)){
src[0]= srcParam[0];
src[1]=
src[2]= NULL;
srcStride[0]= srcStrideParam[0];
srcStride[1]=
srcStride[2]= 0;
}
if(c->dstFormat == IMGFMT_I420){
dst[0]= dstParam[0];
dst[1]= dstParam[2];
dst[2]= dstParam[1];
}else{
dst[0]= dstParam[0];
dst[1]= dstParam[1];
dst[2]= dstParam[2];
}
if(isPacked(c->srcFormat))
{
if(dstStride[0]==srcStride[0])
memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
else
{
int i;
uint8_t *srcPtr= src[0];
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
int length;
if(c->srcFormat==IMGFMT_YUY2) length= c->srcW*2;
else if(c->srcFormat==IMGFMT_BGR15) length= c->srcW*2;
else if(c->srcFormat==IMGFMT_BGR16) length= c->srcW*2;
else if(c->srcFormat==IMGFMT_BGR24) length= c->srcW*3;
else if(c->srcFormat==IMGFMT_BGR32) length= c->srcW*4;
else return; /* that shouldnt happen */
for(i=0; i<srcSliceH; i++)
{
memcpy(dstPtr, srcPtr, length);
srcPtr+= srcStride[0];
dstPtr+= dstStride[0];
}
}
}
else
{ /* Planar YUV */
int plane;
for(plane=0; plane<3; plane++)
{
int length= plane==0 ? c->srcW : ((c->srcW+1)>>1);
int y= plane==0 ? srcSliceY: ((srcSliceY+1)>>1);
int height= plane==0 ? srcSliceH: ((srcSliceH+1)>>1);
printf("%d %d %d %d %d %d\n", plane, length, y, height, dstStride[plane], srcStride[plane] );
if(dstStride[plane]==srcStride[plane])
memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]);
else
{
int i;
uint8_t *srcPtr= src[plane];
uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
for(i=0; i<height; i++)
{
memcpy(dstPtr, srcPtr, length);
srcPtr+= srcStride[plane];
dstPtr+= dstStride[plane];
}
}
}
}
}
SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
@ -1191,9 +1289,20 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
if(isPlanarYUV(srcFormat) && isBGR(dstFormat))
{
// FIXME multiple yuv2rgb converters wont work that way cuz that thing is full of globals&statics
yuv2rgb_init( dstFormat&0xFF /* =bpp */, MODE_BGR);
yuv2rgb_init( dstFormat&0xFF /* =bpp */, MODE_RGB);
c->swScale= planarYuvToBgr;
if(flags&SWS_PRINT_INFO)
printf("SwScaler: using unscaled %s -> %s special converter\n",
vo_format_name(srcFormat), vo_format_name(dstFormat));
return c;
}
/* simple copy */
if(srcFormat == dstFormat || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)))
{
c->swScale= simpleCopy;
if(flags&SWS_PRINT_INFO)
printf("SwScaler: using unscaled %s -> %s special converter\n",
vo_format_name(srcFormat), vo_format_name(dstFormat));