diff options
| author | Keiji Costantini <strites@gmail.com> | 2014-03-01 18:17:04 +0000 |
|---|---|---|
| committer | Vittorio Giovara <vittorio.giovara@gmail.com> | 2014-03-01 23:17:30 +0100 |
| commit | 9514440337875e0c63b409abcd616b68c518283f (patch) | |
| tree | e206ef0213547f2ec2c0e40da0e11557ac8166d8 /libavcodec/ituh263dec.c | |
| parent | 700687ebe07ac8b7a5cf5fd2c4892ea07a827080 (diff) | |
ituh263: reject b-frame with pp_time = 0
Avoid a division by 0 in ff_mpeg4_set_one_direct_mv.
Sample-Id: 00000168-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Diffstat (limited to 'libavcodec/ituh263dec.c')
| -rw-r--r-- | libavcodec/ituh263dec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/ituh263dec.c b/libavcodec/ituh263dec.c index e36521062f..98c8cfc137 100644 --- a/libavcodec/ituh263dec.c +++ b/libavcodec/ituh263dec.c @@ -750,6 +750,8 @@ int ff_h263_decode_mb(MpegEncContext *s, } if(IS_DIRECT(mb_type)){ + if (!s->pp_time) + return AVERROR_INVALIDDATA; s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT; mb_type |= ff_mpeg4_set_direct_mv(s, 0, 0); }else{ |