Checks if an element exists that supports the given URI protocol. Note that a positive return value does not imply that a subsequent call to gst_element_make_from_uri() is guaranteed to work.
Whether to check for a source or a sink
Protocol that should be checked for (e.g. "http" or "smb")
Return: %TRUE
See Implementation
Checks if an element exists that supports the given URI protocol. Note that a positive return value does not imply that a subsequent call to gst_element_make_from_uri() is guaranteed to work.