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