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copy src to prevent the user supplied argumet from being changed 

Originally committed as revision 22410 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Michael Niedermayer 2007-03-02 13:32:10 +00:00
parent b09b580b4d
commit 0c84001325
1 changed files with 2 additions and 1 deletions
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3
libswscale/swscale.c
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@ -2435,10 +2435,11 @@ int sws_scale(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
// copy strides, so they can safely be modified
if (c->sliceDir == 1) {
uint8_t* src2[4]= {src[0], src[1], src[2]};
// slices go from top to bottom
int srcStride2[3]= {srcStride[0], srcStride[1], srcStride[2]};
int dstStride2[3]= {dstStride[0], dstStride[1], dstStride[2]};
return c->swScale(c, src, srcStride2, srcSliceY, srcSliceH, dst, dstStride2);
return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst, dstStride2);
} else {
// slices go from bottom to top => we flip the image internally
uint8_t* src2[3]= {src[0] + (srcSliceH-1)*srcStride[0],