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h264: fix the check for invalid SPS:num_ref_frames.

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This patch set the limit to 16.

For information, thoses previous commits:
41f7e2d11d
5cbb0e70a0
assumed it was either 30 or 32.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit bcf881a685)
This commit is contained in:
Laurent Aimar
2011-10-02 16:06:38 +02:00
committed by Michael Niedermayer
parent cf0052931d
commit bfd7238adb
1 changed files with 1 additions and 1 deletions
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2
libavcodec/h264_ps.c
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@@ -365,7 +365,7 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){
} }
sps->ref_frame_count= get_ue_golomb_31(&s->gb); sps->ref_frame_count= get_ue_golomb_31(&s->gb);
if(sps->ref_frame_count > MAX_PICTURE_COUNT-2 || sps->ref_frame_count >= 32U){ if(sps->ref_frame_count > MAX_PICTURE_COUNT-2 || sps->ref_frame_count > 16U){
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");
goto fail; goto fail;
} }