From 1f07ae744fba5f5b9d728733dfc34e2f4e1d9f05 Mon Sep 17 00:00:00 2001 From: henry Date: Sun, 24 Apr 2005 07:50:18 +0000 Subject: check for negative strides before memcpy git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15250 b3059339-0415-0410-9bf9-f77b7e298cf2 --- postproc/swscale.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'postproc') diff --git a/postproc/swscale.c b/postproc/swscale.c index a94de52af6..0c75f0a7a8 100644 --- a/postproc/swscale.c +++ b/postproc/swscale.c @@ -1425,7 +1425,7 @@ static int PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], i int srcSliceH, uint8_t* dstParam[], int dstStride[]){ uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY; /* Copy Y plane */ - if(dstStride[0]==srcStride[0]) + if(dstStride[0]==srcStride[0] && srcStride[0] > 0) memcpy(dst, src[0], srcSliceH*dstStride[0]); else { @@ -1559,7 +1559,7 @@ static int yvu9toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int int i; /* copy Y */ - if(srcStride[0]==dstStride[0]) + if(srcStride[0]==dstStride[0] && srcStride[0] > 0) memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH); else{ uint8_t *srcPtr= src[0]; @@ -1633,7 +1633,7 @@ static int simpleCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSli if(isPacked(c->srcFormat)) { - if(dstStride[0]==srcStride[0]) + if(dstStride[0]==srcStride[0] && srcStride[0] > 0) memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]); else { @@ -1671,7 +1671,7 @@ static int simpleCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSli } else { - if(dstStride[plane]==srcStride[plane]) + if(dstStride[plane]==srcStride[plane] && srcStride[plane] > 0) memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]); else { -- cgit v1.2.3