From 20fa3fb93d0f3d3eab2b1f63a03168f492fae047 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 21 Feb 2014 02:15:58 +0100 Subject: [PATCH] avformat/movenc: assert that get_cluster_duration() value is valid Signed-off-by: Michael Niedermayer --- libavformat/movenc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/libavformat/movenc.c b/libavformat/movenc.c index bb4d379c6c..af7efc9ba1 100644 --- a/libavformat/movenc.c +++ b/libavformat/movenc.c @@ -614,7 +614,12 @@ static int get_cluster_duration(MOVTrack *track, int cluster_idx) else next_dts = track->cluster[cluster_idx + 1].dts; - return next_dts - track->cluster[cluster_idx].dts; + next_dts -= track->cluster[cluster_idx].dts; + + av_assert0(next_dts >= 0); + av_assert0(next_dts <= INT_MAX); + + return next_dts; } static int get_samples_per_packet(MOVTrack *track)