Retrieves a pad from the element by name (e.g. "src_\d"). This version only
retrieves request pads. The pad should be released with
Element.releaseRequestPad.
This method is slower than manually getting the pad template and calling
Element.requestPad if the pads should have a specific name (e.g.
name is "src_1" instead of "src_\u").
Retrieves a pad from the element by name (e.g. "src_\d"). This version only retrieves request pads. The pad should be released with Element.releaseRequestPad.
This method is slower than manually getting the pad template and calling Element.requestPad if the pads should have a specific name (e.g. name is "src_1" instead of "src_\u").