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| author | Michael Niedermayer <michaelni@gmx.at> | 2011-12-01 18:35:58 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-12-01 18:46:22 +0100 |
| commit | b50be4e38dc83389925dc14f24fa11e660d32197 (patch) | |
| tree | 5fb738953092322372c21e033517e727a24068c1 | |
| parent | d9cc6bb4324821853d56a44bb6b1bc6172ebeb6e (diff) | |
| download | ffmpeg-b50be4e38dc83389925dc14f24fa11e660d32197.tar.gz | |
vc1_parser: fix NULL pointer dereference
Fixes Ticket456
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/vc1.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index 0dbe48d73c..775caa69f8 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -896,6 +896,8 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb) v->rnd = get_bits1(gb); if (v->interlace) v->uvsamp = get_bits1(gb); + if(!ff_vc1_bfraction_vlc.table) + return 0; //parsing only, vlc tables havnt been allocated if (v->field_mode) { if (!v->refdist_flag) v->refdist = 0; |