Performs a query on the given element.
For elements that don't implement a query handler, this function
forwards the query to a random srcpad or to the peer of a
random linked sinkpad of this element.
Please note that some queries might need a running pipeline to work.
Performs a query on the given element. For elements that don't implement a query handler, this function forwards the query to a random srcpad or to the peer of a random linked sinkpad of this element. Please note that some queries might need a running pipeline to work.