[Mplayer-cvslog] CVS: main/postproc swscale.c,1.61,1.62 swscale_template.c,1.61,1.62 swscale.h,1.12,1.13
Michael Niedermayer
michael at mplayer.dev.hu
Wed Jan 30 16:21:10 CET 2002
- Previous message: [Mplayer-cvslog] CVS: main/input Makefile,NONE,1.1 input.c,NONE,1.1 input.h,NONE,1.1 joystick.c,NONE,1.1 joystick.h,NONE,1.1
- Next message: [Mplayer-cvslog] CVS: main/postproc swscale.c,1.61,1.62 swscale_template.c,1.61,1.62 swscale.h,1.12,1.13
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Update of /cvsroot/mplayer/main/postproc
In directory mplayer:/var/tmp.root/cvs-serv29859
Modified Files:
swscale.c swscale_template.c swscale.h
Log Message:
YV12 like formats support (I420/IYUV)
bugfixes related to vo_x11 resizeing
Index: swscale.c
===================================================================
RCS file: /cvsroot/mplayer/main/postproc/swscale.c,v
retrieving revision 1.61
retrieving revision 1.62
diff -u -r1.61 -r1.62
--- swscale.c 29 Jan 2002 01:43:15 -0000 1.61
+++ swscale.c 30 Jan 2002 15:21:08 -0000 1.62
@@ -17,8 +17,9 @@
*/
/*
- supported Input formats: YV12 (grayscale soon too)
- supported output formats: YV12, BGR15, BGR16, BGR24, BGR32 (grayscale soon too)
+ supported Input formats: YV12, I420, IYUV (grayscale soon too)
+ supported output formats: YV12, I420, IYUV, BGR15, BGR16, BGR24, BGR32 (grayscale soon too)
+ BGR15/16 support dithering
*/
#include <inttypes.h>
@@ -56,6 +57,12 @@
#define PI 3.14159265358979323846
#endif
+//FIXME replace this with something faster
+#define isYUV(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 || (x)==IMGFMT_IYUV)
+#define isPlanarYUV(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 || (x)==IMGFMT_IYUV)
+#define isHalfChrV(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 || (x)==IMGFMT_IYUV)
+#define isHalfChrH(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 || (x)==IMGFMT_IYUV)
+
extern int verbose; // defined in mplayer.c
/*
NOTES
@@ -63,8 +70,6 @@
known BUGS with known cause (no bugreports please!, but patches are welcome :) )
horizontal fast_bilinear MMX2 scaler reads 1-7 samples too much (might cause a sig11)
-Supported output formats BGR15 BGR16 BGR24 BGR32 YV12
-BGR15 & BGR16 MMX verions support dithering
Special versions: fast Y 1:1 scaling (no interpolation in y direction)
TODO
@@ -507,7 +512,7 @@
// minor note: the HAVE_xyz is messed up after that line so dont use it
-// old global scaler, dont use for new code, unless it uses only the stuff from the command line
+// old global scaler, dont use for new code
// will use sws_flags from the command line
void SwScale_YV12slice(unsigned char* src[], int srcStride[], int srcSliceY ,
int srcSliceH, uint8_t* dst[], int dstStride, int dstbpp,
@@ -515,77 +520,8 @@
static SwsContext *context=NULL;
int dstFormat;
- int flags=0;
- static int firstTime=1;
int dstStride3[3]= {dstStride, dstStride>>1, dstStride>>1};
- if(firstTime)
- {
-#ifdef ARCH_X86
- if(gCpuCaps.hasMMX)
- asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
-#endif
- flags= SWS_PRINT_INFO;
- firstTime=0;
-
- if(src_filter.lumH) freeVec(src_filter.lumH);
- if(src_filter.lumV) freeVec(src_filter.lumV);
- if(src_filter.chrH) freeVec(src_filter.chrH);
- if(src_filter.chrV) freeVec(src_filter.chrV);
-
- if(sws_lum_gblur!=0.0){
- src_filter.lumH= getGaussianVec(sws_lum_gblur, 3.0);
- src_filter.lumV= getGaussianVec(sws_lum_gblur, 3.0);
- }else{
- src_filter.lumH= getIdentityVec();
- src_filter.lumV= getIdentityVec();
- }
-
- if(sws_chr_gblur!=0.0){
- src_filter.chrH= getGaussianVec(sws_chr_gblur, 3.0);
- src_filter.chrV= getGaussianVec(sws_chr_gblur, 3.0);
- }else{
- src_filter.chrH= getIdentityVec();
- src_filter.chrV= getIdentityVec();
- }
-
- if(sws_chr_sharpen!=0.0){
- SwsVector *g= getConstVec(-1.0, 3);
- SwsVector *id= getConstVec(10.0/sws_chr_sharpen, 1);
- g->coeff[1]=2.0;
- addVec(id, g);
- convVec(src_filter.chrH, id);
- convVec(src_filter.chrV, id);
- freeVec(g);
- freeVec(id);
- }
-
- if(sws_lum_sharpen!=0.0){
- SwsVector *g= getConstVec(-1.0, 3);
- SwsVector *id= getConstVec(10.0/sws_lum_sharpen, 1);
- g->coeff[1]=2.0;
- addVec(id, g);
- convVec(src_filter.lumH, id);
- convVec(src_filter.lumV, id);
- freeVec(g);
- freeVec(id);
- }
-
- if(sws_chr_hshift)
- shiftVec(src_filter.chrH, sws_chr_hshift);
-
- if(sws_chr_vshift)
- shiftVec(src_filter.chrV, sws_chr_vshift);
-
- normalizeVec(src_filter.chrH, 1.0);
- normalizeVec(src_filter.chrV, 1.0);
- normalizeVec(src_filter.lumH, 1.0);
- normalizeVec(src_filter.lumV, 1.0);
-
- if(verbose > 1) printVec(src_filter.chrH);
- if(verbose > 1) printVec(src_filter.lumH);
- }
-
switch(dstbpp)
{
case 8 : dstFormat= IMGFMT_Y8; break;
@@ -597,6 +533,85 @@
default: return;
}
+ if(!context) context=getSwsContextFromCmdLine(srcW, srcH, IMGFMT_YV12, dstW, dstH, dstFormat);
+
+ swScale(context, src, srcStride, srcSliceY, srcSliceH, dst, dstStride3);
+}
+
+// will use sws_flags & src_filter (from cmd line)
+SwsContext *getSwsContextFromCmdLine(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat)
+{
+ int flags=0;
+ static int firstTime=1;
+
+#ifdef ARCH_X86
+ if(gCpuCaps.hasMMX)
+ asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
+#endif
+ if(firstTime)
+ {
+ firstTime=0;
+ flags= SWS_PRINT_INFO;
+ }
+ else if(verbose>1) flags= SWS_PRINT_INFO;
+
+ if(src_filter.lumH) freeVec(src_filter.lumH);
+ if(src_filter.lumV) freeVec(src_filter.lumV);
+ if(src_filter.chrH) freeVec(src_filter.chrH);
+ if(src_filter.chrV) freeVec(src_filter.chrV);
+
+ if(sws_lum_gblur!=0.0){
+ src_filter.lumH= getGaussianVec(sws_lum_gblur, 3.0);
+ src_filter.lumV= getGaussianVec(sws_lum_gblur, 3.0);
+ }else{
+ src_filter.lumH= getIdentityVec();
+ src_filter.lumV= getIdentityVec();
+ }
+
+ if(sws_chr_gblur!=0.0){
+ src_filter.chrH= getGaussianVec(sws_chr_gblur, 3.0);
+ src_filter.chrV= getGaussianVec(sws_chr_gblur, 3.0);
+ }else{
+ src_filter.chrH= getIdentityVec();
+ src_filter.chrV= getIdentityVec();
+ }
+
+ if(sws_chr_sharpen!=0.0){
+ SwsVector *g= getConstVec(-1.0, 3);
+ SwsVector *id= getConstVec(10.0/sws_chr_sharpen, 1);
+ g->coeff[1]=2.0;
+ addVec(id, g);
+ convVec(src_filter.chrH, id);
+ convVec(src_filter.chrV, id);
+ freeVec(g);
+ freeVec(id);
+ }
+
+ if(sws_lum_sharpen!=0.0){
+ SwsVector *g= getConstVec(-1.0, 3);
+ SwsVector *id= getConstVec(10.0/sws_lum_sharpen, 1);
+ g->coeff[1]=2.0;
+ addVec(id, g);
+ convVec(src_filter.lumH, id);
+ convVec(src_filter.lumV, id);
+ freeVec(g);
+ freeVec(id);
+ }
+
+ if(sws_chr_hshift)
+ shiftVec(src_filter.chrH, sws_chr_hshift);
+
+ if(sws_chr_vshift)
+ shiftVec(src_filter.chrV, sws_chr_vshift);
+
+ normalizeVec(src_filter.chrH, 1.0);
+ normalizeVec(src_filter.chrV, 1.0);
+ normalizeVec(src_filter.lumH, 1.0);
+ normalizeVec(src_filter.lumV, 1.0);
+
+ if(verbose > 1) printVec(src_filter.chrH);
+ if(verbose > 1) printVec(src_filter.lumH);
+
switch(sws_flags)
{
case 0: flags|= SWS_FAST_BILINEAR; break;
@@ -608,12 +623,10 @@
default:flags|= SWS_BILINEAR; break;
}
- if(!context) context=getSwsContext(srcW, srcH, IMGFMT_YV12, dstW, dstH, dstFormat, flags, &src_filter, NULL);
-
-
- swScale(context, src, srcStride, srcSliceY, srcSliceH, dst, dstStride3);
+ return getSwsContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, &src_filter, NULL);
}
+
static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
int srcW, int dstW, int filterAlign, int one, int flags,
SwsVector *srcFilter, SwsVector *dstFilter)
@@ -629,7 +642,9 @@
asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
#endif
- *filterPos = (int16_t*)memalign(8, dstW*sizeof(int16_t));
+ *filterPos = (int16_t*)memalign(8, (dstW+1)*sizeof(int16_t));
+ (*filterPos)[dstW]=0; // the MMX scaler will read over the end
+
if(ABS(xInc - 0x10000) <10) // unscaled
{
int i;
@@ -846,18 +861,26 @@
if(min>minFilterSize) minFilterSize= min;
}
+ filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
+ filter= (double*)memalign(8, filterSize*dstW*sizeof(double));
+ *outFilterSize= filterSize;
+
+ if((flags&SWS_PRINT_INFO) && verbose)
+ printf("SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
/* try to reduce the filter-size (step2 reduce it) */
for(i=0; i<dstW; i++)
{
int j;
- for(j=0; j<minFilterSize; j++)
- filter2[i*minFilterSize + j]= filter2[i*filter2Size + j];
+ for(j=0; j<filterSize; j++)
+ {
+ if(j>=filter2Size) filter[i*filterSize + j]= 0.0;
+ else filter[i*filterSize + j]= filter2[i*filter2Size + j];
+ }
}
- if((flags&SWS_PRINT_INFO) && verbose)
- printf("SwScaler: reducing filtersize %d -> %d\n", filter2Size, minFilterSize);
- filter2Size= minFilterSize;
- ASSERT(filter2Size > 0)
+ free(filter2); filter2=NULL;
+
+ ASSERT(filterSize > 0)
//FIXME try to align filterpos if possible
@@ -868,33 +891,32 @@
if((*filterPos)[i] < 0)
{
// Move filter coeffs left to compensate for filterPos
- for(j=1; j<filter2Size; j++)
+ for(j=1; j<filterSize; j++)
{
int left= MAX(j + (*filterPos)[i], 0);
- filter2[i*filter2Size + left] += filter2[i*filter2Size + j];
- filter2[i*filter2Size + j]=0;
+ filter[i*filterSize + left] += filter[i*filterSize + j];
+ filter[i*filterSize + j]=0;
}
(*filterPos)[i]= 0;
}
- if((*filterPos)[i] + filter2Size > srcW)
+ if((*filterPos)[i] + filterSize > srcW)
{
- int shift= (*filterPos)[i] + filter2Size - srcW;
+ int shift= (*filterPos)[i] + filterSize - srcW;
// Move filter coeffs right to compensate for filterPos
- for(j=filter2Size-2; j>=0; j--)
+ for(j=filterSize-2; j>=0; j--)
{
- int right= MIN(j + shift, filter2Size-1);
- filter2[i*filter2Size +right] += filter2[i*filter2Size +j];
- filter2[i*filter2Size +j]=0;
+ int right= MIN(j + shift, filterSize-1);
+ filter[i*filterSize +right] += filter[i*filterSize +j];
+ filter[i*filterSize +j]=0;
}
- (*filterPos)[i]= srcW - filter2Size;
+ (*filterPos)[i]= srcW - filterSize;
}
}
-
- *outFilterSize= (filter2Size +(filterAlign-1)) & (~(filterAlign-1));
- *outFilter= (int16_t*)memalign(8, *outFilterSize*dstW*sizeof(int16_t));
- memset(*outFilter, 0, *outFilterSize*dstW*sizeof(int16_t));
+ // Note the +1 is for the MMXscaler which reads over the end
+ *outFilter= (int16_t*)memalign(8, *outFilterSize*(dstW+1)*sizeof(int16_t));
+ memset(*outFilter, 0, *outFilterSize*(dstW+1)*sizeof(int16_t));
/* Normalize & Store in outFilter */
for(i=0; i<dstW; i++)
@@ -902,18 +924,18 @@
int j;
double sum=0;
double scale= one;
- for(j=0; j<filter2Size; j++)
+ for(j=0; j<filterSize; j++)
{
- sum+= filter2[i*filter2Size + j];
+ sum+= filter[i*filterSize + j];
}
scale/= sum;
- for(j=0; j<filter2Size; j++)
+ for(j=0; j<filterSize; j++)
{
- (*outFilter)[i*(*outFilterSize) + j]= (int)(filter2[i*filter2Size + j]*scale);
+ (*outFilter)[i*(*outFilterSize) + j]= (int)(filter[i*filterSize + j]*scale);
}
}
- free(filter2);
+ free(filter);
}
#ifdef ARCH_X86
@@ -1069,7 +1091,6 @@
SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
SwsFilter *srcFilter, SwsFilter *dstFilter){
- const int widthAlign= dstFormat==IMGFMT_YV12 ? 16 : 8;
SwsContext *c;
int i;
SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
@@ -1082,17 +1103,10 @@
if(swScale==NULL) globalInit();
/* sanity check */
- if(srcW<1 || srcH<1 || dstW<1 || dstH<1) return NULL;
+ if(srcW<4 || srcH<1 || dstW<8 || dstH<1) return NULL; //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code
+
+ if(srcFormat!=IMGFMT_YV12 && srcFormat!=IMGFMT_I420 && srcFormat!=IMGFMT_IYUV) return NULL;
-/* FIXME
- if(dstStride[0]%widthAlign !=0 )
- {
- if(flags & SWS_PRINT_INFO)
- fprintf(stderr, "SwScaler: Warning: dstStride is not a multiple of %d!\n"
- "SwScaler: ->cannot do aligned memory acesses anymore\n",
- widthAlign);
- }
-*/
if(!dstFilter) dstFilter= &dummyFilter;
if(!srcFilter) srcFilter= &dummyFilter;
@@ -1135,14 +1149,15 @@
}
/* set chrXInc & chrDstW */
- if((flags&SWS_FULL_UV_IPOL) && dstFormat!=IMGFMT_YV12)
+ if((flags&SWS_FULL_UV_IPOL) && !isHalfChrH(dstFormat))
c->chrXInc= c->lumXInc>>1, c->chrDstW= dstW;
else
c->chrXInc= c->lumXInc, c->chrDstW= (dstW+1)>>1;
/* set chrYInc & chrDstH */
- if(dstFormat==IMGFMT_YV12) c->chrYInc= c->lumYInc, c->chrDstH= (dstH+1)>>1;
- else c->chrYInc= c->lumYInc>>1, c->chrDstH= dstH;
+ if(isHalfChrV(dstFormat))
+ c->chrYInc= c->lumYInc, c->chrDstH= (dstH+1)>>1;
+ else c->chrYInc= c->lumYInc>>1, c->chrDstH= dstH;
/* precalculate horizontal scaler filter coefficients */
{
@@ -1191,9 +1206,9 @@
}
// allocate pixbufs (we use dynamic allocation because otherwise we would need to
- // allocate several megabytes to handle all possible cases)
c->lumPixBuf= (int16_t**)memalign(4, c->vLumBufSize*2*sizeof(int16_t*));
c->chrPixBuf= (int16_t**)memalign(4, c->vChrBufSize*2*sizeof(int16_t*));
+ //Note we need at least one pixel more at the end because of the mmx code (just in case someone wanna replace the 4000/8000)
for(i=0; i<c->vLumBufSize; i++)
c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= (uint16_t*)memalign(8, 4000);
for(i=0; i<c->vChrBufSize; i++)
@@ -1248,6 +1263,10 @@
fprintf(stderr, "with BGR32 output ");
else if(dstFormat==IMGFMT_YV12)
fprintf(stderr, "with YV12 output ");
+ else if(dstFormat==IMGFMT_I420)
+ fprintf(stderr, "with I420 output ");
+ else if(dstFormat==IMGFMT_IYUV)
+ fprintf(stderr, "with IYUV output ");
else
fprintf(stderr, "without output ");
@@ -1295,12 +1314,12 @@
printf("SwScaler: using C scaler for horizontal scaling\n");
#endif
}
- if(dstFormat==IMGFMT_YV12)
+ if(isPlanarYUV(dstFormat))
{
if(c->vLumFilterSize==1)
- printf("SwScaler: using 1-tap %s \"scaler\" for vertical scaling (YV12)\n", cpuCaps.hasMMX ? "MMX" : "C");
+ printf("SwScaler: using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", cpuCaps.hasMMX ? "MMX" : "C");
else
- printf("SwScaler: using n-tap %s scaler for vertical scaling (YV12)\n", cpuCaps.hasMMX ? "MMX" : "C");
+ printf("SwScaler: using n-tap %s scaler for vertical scaling (YV12 like)\n", cpuCaps.hasMMX ? "MMX" : "C");
}
else
{
@@ -1561,7 +1580,7 @@
if(c->lumPixBuf)
{
- for(i=0; i<c->vLumBufSize*2; i++)
+ for(i=0; i<c->vLumBufSize; i++)
{
if(c->lumPixBuf[i]) free(c->lumPixBuf[i]);
c->lumPixBuf[i]=NULL;
@@ -1572,7 +1591,7 @@
if(c->chrPixBuf)
{
- for(i=0; i<c->vChrBufSize*2; i++)
+ for(i=0; i<c->vChrBufSize; i++)
{
if(c->chrPixBuf[i]) free(c->chrPixBuf[i]);
c->chrPixBuf[i]=NULL;
Index: swscale_template.c
===================================================================
RCS file: /cvsroot/mplayer/main/postproc/swscale_template.c,v
retrieving revision 1.61
retrieving revision 1.62
diff -u -r1.61 -r1.62
--- swscale_template.c 21 Jan 2002 22:11:09 -0000 1.61
+++ swscale_template.c 30 Jan 2002 15:21:08 -0000 1.62
@@ -1974,8 +1974,8 @@
}
}
-static void RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], int dstStride[]){
+static void RENAME(swScale)(SwsContext *c, uint8_t* srcParam[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[]){
/* load a few things into local vars to make the code more readable? and faster */
const int srcW= c->srcW;
@@ -2014,6 +2014,41 @@
int chrBufIndex= c->chrBufIndex;
int lastInLumBuf= c->lastInLumBuf;
int lastInChrBuf= c->lastInChrBuf;
+ uint8_t *src[3];
+ uint8_t *dst[3];
+
+ if((c->srcFormat == IMGFMT_IYUV) || (c->srcFormat == IMGFMT_I420)){
+ src[0]= srcParam[0];
+ src[1]= srcParam[2];
+ src[2]= srcParam[1];
+
+ }else{
+ src[0]= srcParam[0];
+ src[1]= srcParam[1];
+ src[2]= srcParam[2];
+ }
+
+ if((c->dstFormat == IMGFMT_IYUV) || (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(dstStride[0]%8 !=0 || dstStride[1]%8 !=0 || dstStride[2]%8 !=0)
+ {
+ static int firstTime=1; //FIXME move this into the context perhaps
+ if(flags & SWS_PRINT_INFO && firstTime)
+ {
+ fprintf(stderr, "SwScaler: Warning: dstStride is not aligned!\n"
+ "SwScaler: ->cannot do aligned memory acesses anymore\n");
+ firstTime=0;
+ }
+ }
if(srcSliceY ==0){
lumBufIndex=0;
@@ -2027,7 +2062,7 @@
unsigned char *dest =dst[0]+dstStride[0]*dstY;
unsigned char *uDest=dst[1]+dstStride[1]*(dstY>>1);
unsigned char *vDest=dst[2]+dstStride[2]*(dstY>>1);
- const int chrDstY= dstFormat==IMGFMT_YV12 ? (dstY>>1) : dstY;
+ const int chrDstY= isHalfChrV(dstFormat) ? (dstY>>1) : dstY;
const int firstLumSrcY= vLumFilterPos[dstY]; //First line needed as input
const int firstChrSrcY= vChrFilterPos[chrDstY]; //First line needed as input
@@ -2124,7 +2159,7 @@
#endif
if(dstY < dstH-2)
{
- if(dstFormat==IMGFMT_YV12) //YV12
+ if(isPlanarYUV(dstFormat)) //YV12 like
{
if(dstY&1) uDest=vDest= NULL; //FIXME split functions in lumi / chromi
if(vLumFilterSize == 1 && vChrFilterSize == 1) // Unscaled YV12
@@ -2180,7 +2215,7 @@
{
int16_t **lumSrcPtr= lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
int16_t **chrSrcPtr= chrPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
- if(dstFormat==IMGFMT_YV12) //YV12
+ if(isPlanarYUV(dstFormat)) //YV12
{
if(dstY&1) uDest=vDest= NULL; //FIXME split functions in lumi / chromi
yuv2yuvXinC(
Index: swscale.h
===================================================================
RCS file: /cvsroot/mplayer/main/postproc/swscale.h,v
retrieving revision 1.12
retrieving revision 1.13
diff -u -r1.12 -r1.13
--- swscale.h 29 Jan 2002 01:43:15 -0000 1.12
+++ swscale.h 30 Jan 2002 15:21:08 -0000 1.13
@@ -103,6 +103,7 @@
void freeSwsContext(SwsContext *swsContext);
+SwsContext *getSwsContextFromCmdLine(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat);
SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
SwsFilter *srcFilter, SwsFilter *dstFilter);
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