media-factory: get port number through gst_rtsp_url_get_port
media-factory: get port number through gst_rtsp_url_get_port

https://bugzilla.gnome.org/show_bug.cgi?id=753473

surround-io/gst-rtsp-server,barisdemiray/gst-rtsp-server,surround-io/gst-rtsp-server,barisdemiray/gst-rtsp-server,barisdemiray/gst-rtsp-server,surround-io/gst-rtsp-server