From 6cbce6365067e1bdd5127d9001809726ea538e09 Mon Sep 17 00:00:00 2001
From: Daniel Kang <daniel.d.kang@gmail.com>
Date: Thu, 6 Jan 2011 03:30:19 +0000
Subject: [PATCH] Fix assertion fail on audio files with invalid sample rates,
 fixes issue 2475.

Patch by Daniel Kang, daniel.d.kang at gmail

Originally committed as revision 26240 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index fb93e3b57c..32067e9a79 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -812,7 +812,7 @@ static void compute_frame_duration(int *pnum, int *pden, AVStream *st,
         break;
     case AVMEDIA_TYPE_AUDIO:
         frame_size = get_audio_frame_size(st->codec, pkt->size);
-        if (frame_size < 0)
+        if (frame_size <= 0 || st->codec->sample_rate <= 0)
             break;
         *pnum = frame_size;
         *pden = st->codec->sample_rate;