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Avoid a crash when H264 MMC operation causes the short term reference 

list to be emptied.
Patch by Jeff Downs: [heydowns borg com]

Originally committed as revision 10416 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jeff Downs 2007-09-05 20:04:09 +00:00 committed by Benoit Fouet
parent 4df7c7d8d6
commit 088ed4d636
1 changed files with 2 additions and 2 deletions
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4
libavcodec/h264.c
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@ -3159,8 +3159,8 @@ static Picture * remove_short(H264Context *h, int frame_num){
av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
if(pic->frame_num == frame_num){
h->short_ref[i]= NULL;
memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i - 1)*sizeof(Picture*));
h->short_ref_count--;
if (--h->short_ref_count)
memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i)*sizeof(Picture*));
return pic;
}
}