From 87d073eaccc00ef2909445ae4b25128c440d9efa Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 14 Nov 2012 14:07:58 +0100 Subject: [PATCH] mov: Dont try to calculate with unknown durations, fix division by 0 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavformat/mov.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index f33a5ac555..01c9413759 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2232,8 +2232,9 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom) ((double)st->codec->width * sc->height), INT_MAX); } - av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den, - sc->time_scale*st->nb_frames, st->duration, INT_MAX); + if (st->duration > 0) + av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den, + sc->time_scale*st->nb_frames, st->duration, INT_MAX); #if FF_API_R_FRAME_RATE if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))