From 7f8ffc4efddf796aa3aa8174fb008007cb8f8c1c Mon Sep 17 00:00:00 2001
From: Daniel Kang <daniel.d.kang@gmail.com>
Date: Sun, 2 Jan 2011 05:01:46 +0000
Subject: [PATCH] Fix a floating point exception for invalid framerate, fixes
 issue 2470.

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

Originally committed as revision 26188 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/yuv4mpeg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/yuv4mpeg.c b/libavformat/yuv4mpeg.c
index 99a1ce2f38..3a488649f3 100644
--- a/libavformat/yuv4mpeg.c
+++ b/libavformat/yuv4mpeg.c
@@ -316,7 +316,7 @@ static int yuv4_read_header(AVFormatContext *s, AVFormatParameters *ap)
             pix_fmt = alt_pix_fmt;
     }
 
-    if (raten == 0 && rated == 0) {
+    if (raten <= 0 || rated <= 0) {
         // Frame rate unknown
         raten = 25;
         rated = 1;