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authorhenry <henry@b3059339-0415-0410-9bf9-f77b7e298cf2>2005-04-24 07:50:18 +0000
committerhenry <henry@b3059339-0415-0410-9bf9-f77b7e298cf2>2005-04-24 07:50:18 +0000
commit1f07ae744fba5f5b9d728733dfc34e2f4e1d9f05 (patch)
tree40ae590c07909a01533421b65d7e02fda73c2f69 /postproc
parentbe41c4a71e4144a326f8e408fa86ed46ae76eeb9 (diff)
downloadmpv-1f07ae744fba5f5b9d728733dfc34e2f4e1d9f05.tar.bz2
mpv-1f07ae744fba5f5b9d728733dfc34e2f4e1d9f05.tar.xz
check for negative strides before memcpy
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15250 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'postproc')
-rw-r--r--postproc/swscale.c8
1 files changed, 4 insertions, 4 deletions
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
{