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MPEG-2 blocks at qp 1 get overfiltered by spp, apparently because "qp>>1" turns

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it into 0, which causes an integer overflow later. Clip qp at 1 to avoid this.
patch by Alexander Strange, astrange ithinksw com


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24572 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
diego 2007-09-18 14:08:08 +00:00
parent b2a9d6aa1b
commit 04586de1dd
1 changed files with 1 additions and 1 deletions
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2
libmpcodecs/vf_spp.c
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@ -402,7 +402,7 @@ static void filter(struct vf_priv_s *p, uint8_t *dst, uint8_t *src, int dst_stri
qp= p->qp;
else{
qp= qp_store[ (XMIN(x, width-1)>>qps) + (XMIN(y, height-1)>>qps) * qp_stride];
if(p->mpeg2) qp>>=1;
if(p->mpeg2) qp = FFMAX(1, qp>>1);
}
for(i=0; i<count; i++){
const int x1= x + offset[i+count-1][0];