rtpmux: Make buffer writable before writing into it

20070712195336-3e2dc-91a5fb797cfa4919d4e2f9a728c6d6fbd3b83d93.gz

diff --git a/gst/rtpmanager/gstrtpmux.c b/gst/rtpmanager/gstrtpmux.c
index e83b165..0794de0 100644 (file)
--- a/gst/rtpmanager/gstrtpmux.c
+++ b/gst/rtpmanager/gstrtpmux.c
@@ -365,6 +365,8 @@ gst_rtp_mux_chain (GstPad * pad, GstBuffer * buffer)
 
   rtp_mux = GST_RTP_MUX (gst_pad_get_parent (pad));
 
+  buffer = gst_buffer_make_writable(buffer);
+
   rtp_mux->seqnum++;
   GST_LOG_OBJECT (rtp_mux, "setting RTP seqnum %d", rtp_mux->seqnum);
   gst_rtp_buffer_set_seq (buffer, rtp_mux->seqnum);