the callback used to tell if the element considers the queue full or not.
the callback which will be called when the queue is considered full.
the callback which will be called when the queue is considered empty.
a gpointer that will be passed to the checkfull, fullcallback, and emptycallback callbacks.
a new gst.DataQueue.DataQueue
ConstructionException GTK+ fails to create the object.
1.2
Creates a new gst.DataQueue.DataQueue If fullcallback or emptycallback are supplied, then the gst.DataQueue.DataQueue will call the respective callback to signal full or empty condition. If the callbacks are NULL the gst.DataQueue.DataQueue will instead emit 'full' and 'empty' signals.