( has_target = false
) ]public delegate FlowReturn PadChainListFunction
pad, owned BufferList
A function that will be called on sinkpads when chaining buffer lists.
The function typically processes the data contained in the buffer list and either consumes the data or passes it on to the internally linked
The implementer of this function receives a refcount to
list and should
unref when the list is no longer needed.
When a chainlist function detects an error in the data stream, it must post an error on the bus and return an appropriate
||the sink Pad that performed the chain.
||the BufferList that is chained, not