added mkdelay function in pipeparts.py

src/python/pipeparts.py

@@ -220,6 +220,15 @@ def mkqueue(pipeline, src, pad_name = None, **properties):
 	return elem
 
 
+def mkdelay(pipeline, src, delay = 0, silent = True):
+	elem = gst.element_factory_make("lal_delay")
+	elem.set_property("delay",delay)
+	elem.set_property("silent",silent)
+	pipeline.add(elem)
+	src.link(elem)
+	return elem
+
+
 def mknofakedisconts(pipeline, src, silent = True):
 	elem = gst.element_factory_make("lal_nofakedisconts")
 	elem.set_property("silent", silent)