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h264: check the pixel format directly and force a reinit on mismatches.

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The existing checks are insufficient to detect a pixel format
changes in case of some damaged streams.
Fixes inconsistency and later out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-29 04:17:48 +01:00
parent f9a8eeb08c
commit 11c99c78ba
1 changed files with 2 additions and 1 deletions
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3
libavcodec/h264.c
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@ -2776,7 +2776,8 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
|| s->avctx->bits_per_raw_sample != h->sps.bit_depth_luma
|| h->cur_chroma_format_idc != h->sps.chroma_format_idc
|| av_cmp_q(h->sps.sar, s->avctx->sample_aspect_ratio)));
if (h0->s.avctx->pix_fmt != get_pixel_format(h0))
must_reinit = 1;
s->mb_width = h->sps.mb_width;
s->mb_height = h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);