qtmux: prevent infinite loop when adjusting framerate

Fixes #632070.

diff --git a/gst/qtmux/gstqtmux.c b/gst/qtmux/gstqtmux.c
index 32e8ce9..c09ad48 100644 (file)
--- a/gst/qtmux/gstqtmux.c
+++ b/gst/qtmux/gstqtmux.c
@@ -2258,6 +2258,9 @@ refuse_renegotiation:
 static guint32
 adjust_rate (guint64 rate)
 {
+  if (rate == 0)
+    return 10000;
+
   while (rate >= 10000)
     rate /= 10;