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Actually return with an error condition if we're being asked to deal with too

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many reference frames. Also check max num ref frames against our internal
ref buffer sizes.
Part of fix for roundup issue 281

Originally committed as revision 11215 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jeff Downs
2007-12-14 05:48:27 +00:00
parent 33e0073129
commit 41f7e2d11d
1 changed files with 2 additions and 1 deletions
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libavcodec/h264.c
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@@ -7210,8 +7210,9 @@ static inline int decode_seq_parameter_set(H264Context *h){
} }
tmp= get_ue_golomb(&s->gb); tmp= get_ue_golomb(&s->gb);
if(tmp > MAX_PICTURE_COUNT-2){ if(tmp > MAX_PICTURE_COUNT-2 || tmp >= 32){
av_log(h->s.avctx, AV_LOG_ERROR, "too many reference frames\n"); av_log(h->s.avctx, AV_LOG_ERROR, "too many reference frames\n");
return -1;
} }
sps->ref_frame_count= tmp; sps->ref_frame_count= tmp;
sps->gaps_in_frame_num_allowed_flag= get_bits1(&s->gb); sps->gaps_in_frame_num_allowed_flag= get_bits1(&s->gb);