From f01e6c6f896c06f2cf6f900013eea4f47446c501 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Olivier=20Cr=C3=AAte?= <olivier.crete@collabora.co.uk>
Date: Wed, 4 Nov 2009 22:21:35 -0500
Subject: [PATCH] dtmfsrc: Reject empty caps

---
 gst/dtmf/gstdtmfsrc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gst/dtmf/gstdtmfsrc.c b/gst/dtmf/gstdtmfsrc.c
index 20cb43a8e8..39699d8409 100644
--- a/gst/dtmf/gstdtmfsrc.c
+++ b/gst/dtmf/gstdtmfsrc.c
@@ -814,6 +814,9 @@ gst_dtmf_src_negotiate (GstBaseSrc * basesrc)
         gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD
             (basesrc)));
 
+  if (gst_caps_is_empty (caps))
+    return FALSE;
+
   gst_caps_truncate (caps);
   s = gst_caps_get_structure (caps, 0);