[FFmpeg-cvslog] mov: Avoid divide by zero in edit list dts handling

[Benjamin Larsson]

ffmpeg | branch: master | Benjamin Larsson <benjamin at southpole.se> | Sat Oct 29 12:57:10 2011 +0200| [69e7ad8dbc9896aff70f1f1125c726764f28455f] | committer: Ronald S. Bultje

mov: Avoid divide by zero in edit list dts handling

Signed-off-by: Ronald S. Bultje <rsbultje at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=69e7ad8dbc9896aff70f1f1125c726764f28455f
---

 libavformat/mov.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 1747bd4..2036f51 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1605,7 +1605,7 @@ static void mov_build_index(MOVContext *mov, AVStream *st)
         if (sc->time_offset < 0)
             sc->time_offset = av_rescale(sc->time_offset, sc->time_scale, mov->time_scale);
         current_dts = -sc->time_offset;
-        if (sc->ctts_data && sc->stts_data &&
+        if (sc->ctts_data && sc->stts_data && sc->stts_data[0].duration &&
             sc->ctts_data[0].duration / sc->stts_data[0].duration > 16) {
             /* more than 16 frames delay, dts are likely wrong
                this happens with files created by iMovie */