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Add missing checks in RealVideo slice handling code.

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22165 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar
2007-02-06 18:30:56 +00:00
parent fad5b59443
commit c8e55fd4bc
1 changed files with 5 additions and 3 deletions
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libmpcodecs/vd_ffmpeg.c
+5 -3
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@@ -764,15 +764,17 @@ static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
if(sh->bih->biSize>=sizeof(*sh->bih)+8){
int i;
dp_hdr_t *hdr= (dp_hdr_t*)data;
uint32_t *offsets = (uint32_t*)(data + hdr->chunktab) + 1;
char *end = data + len;
if(avctx->slice_offset==NULL)
avctx->slice_offset= av_malloc(sizeof(int)*1000);
// for(i=0; i<25; i++) printf("%02X ", ((uint8_t*)data)[i]);
avctx->slice_count= hdr->chunks+1;
for(i=0; i<avctx->slice_count; i++)
avctx->slice_offset[i]= ((uint32_t*)(data+hdr->chunktab))[2*i+1];
avctx->slice_count= FFMIN(hdr->chunks+1, 1000);
for(i=0; i<avctx->slice_count && end >= &offsets[2*i+1]; i++)
avctx->slice_offset[i]= offsets[2*i];
len=hdr->len;
data+= sizeof(dp_hdr_t);
}