GstXML XML save/restore operations of pipelines @: @: @: @gstxml: the object which received the signal. @arg1: @arg2: @element: @Returns: @element: @out: @Returns: @Returns: @xml: @doc: @root: @Returns: @xml: @fname: @root: @Returns: @xml: @buffer: @size: @root: @Returns: @xml: @name: @Returns: @xml: @Returns: @cur: @parent: @Returns: