From fedb1eca0723d217832ab8ecdad6c608fce981ca Mon Sep 17 00:00:00 2001
From: Baptiste Coudurier <baptiste.coudurier@gmail.com>
Date: Thu, 5 Nov 2009 07:17:10 +0000
Subject: [PATCH] check that duration is set to avoid fpe

Originally committed as revision 20457 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/mov.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index dfe50c1cf5..dc0135d8bd 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1500,7 +1500,8 @@ static void mov_build_index(MOVContext *mov, AVStream *st)
                 }
             }
         }
-        st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
+        if (st->duration > 0)
+            st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
     } else {
         for (i = 0; i < sc->chunk_count; i++) {
             unsigned chunk_samples;