--- libs/gst/base/gstbasesrc.c.orig     2014-04-20 08:59:07.893793825 +0000
+++ libs/gst/base/gstbasesrc.c  2014-04-20 09:00:13.270789346 +0000
@@ -2814,6 +2814,7 @@
 flushing:
   {
     GST_DEBUG_OBJECT (src, "we are flushing");
+    GST_LIVE_LOCK (src);
     GST_LIVE_UNLOCK (src);
     ret = GST_FLOW_FLUSHING;
     goto pause;