Function signature to handle a unlinking the pad prom its peer.
The pad's lock is already held when the unlink function is called, so most pad functions cannot be called from within the callback.
the #GstPad that is linked.
the parent of pad. If the #GST_PAD_FLAG_NEED_PARENT flag is set, parent is guaranteed to be not-%NULL and remain valid during the execution of this function.
pad
parent
Function signature to handle a unlinking the pad prom its peer.
The pad's lock is already held when the unlink function is called, so most pad functions cannot be called from within the callback.