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| author | Michael Niedermayer <michaelni@gmx.at> | 2015-02-24 20:49:07 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-03-14 14:27:23 +0100 |
| commit | ec7c1cd73319bbe75924f77363e710217f0878da (patch) | |
| tree | 2517f5d7bc39bdddfb9a2e25ad07068e24132ba7 | |
| parent | c4d250abcaf72f57c2937043dc6bdb502bfb9c69 (diff) | |
| download | ffmpeg-ec7c1cd73319bbe75924f77363e710217f0878da.tar.gz | |
avcodec/h264: Only reinit quant tables if a new PPS is allowed
Fixes null pointer dereference
Fixes: signal_sigsegv_3042097_3007_cov_1741463594_non_monotone_timestamps1.mkv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c23a0e77dd492d6c794f89dbff3a438c95745e70)
Conflicts:
libavcodec/h264_slice.c
| -rw-r--r-- | libavcodec/h264.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h264.c b/libavcodec/h264.c index 00f9e0738e..56858f4f46 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -3712,7 +3712,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0) } } - if (h == h0 && h->dequant_coeff_pps != pps_id) { + if (first_slice && h->dequant_coeff_pps != pps_id) { h->dequant_coeff_pps = pps_id; init_dequant_tables(h); } |