lavf/jacosubdec: fix FPE in case timeres is badly set.

13 years ago · 0ef28e119e
parent 60715511db
commit 0ef28e119e
1 changed files with 4 additions and 1 deletions
--- 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;
        }
    }