Commit 95144403 authored by Keiji Costantini's avatar Keiji Costantini Committed by Vittorio Giovara
Browse files

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: default avatarVittorio Giovara <vittorio.giovara@gmail.com>
parent 700687eb
......@@ -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{
......
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