From a0851ebcbf5e682891f51cd5acf2e580809cf21e Mon Sep 17 00:00:00 2001
From: Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
Date: Thu, 19 Nov 2009 11:14:57 +0100
Subject: [PATCH] qtmux: ensure writable buffer metadata before setting caps

---
 gst/qtmux/gstqtmux.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gst/qtmux/gstqtmux.c b/gst/qtmux/gstqtmux.c
index 1838c6c..38b1096 100644
--- a/gst/qtmux/gstqtmux.c
+++ b/gst/qtmux/gstqtmux.c
@@ -819,6 +819,7 @@ gst_qt_mux_send_buffer (GstQTMux * qtmux, GstBuffer * buf, guint64 * offset,
   } else {
     GST_LOG_OBJECT (qtmux, "downstream");
 
+    buf = gst_buffer_make_metadata_writable (buf);
     gst_buffer_set_caps (buf, GST_PAD_CAPS (qtmux->srcpad));
     res = gst_pad_push (qtmux->srcpad, buf);
   }
-- 
2.7.4