From 0ef28e119e0d61258cd67c8eb8ba74df393ad07b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= <ubitux@gmail.com>
Date: Fri, 29 Jun 2012 19:38:09 +0200
Subject: [PATCH] lavf/jacosubdec: fix FPE in case timeres is badly set.

---
 libavformat/jacosubdec.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavformat/jacosubdec.c b/libavformat/jacosubdec.c
index 4c82650692..cc4b978dae 100644
--- a/libavformat/jacosubdec.c
+++ b/libavformat/jacosubdec.c
@@ -219,7 +219,10 @@ static int jacosub_read_header(AVFormatContext *s)
             break;
         case 'T': // ...but must be placed after TIMERES
             jacosub->timeres = strtol(p, NULL, 10);
-            av_bprintf(&header, "#T %s", p);
+            if (!jacosub->timeres)
+                jacosub->timeres = 30;
+            else
+                av_bprintf(&header, "#T %s", p);
             break;
         }
     }