Returns the currently queued buffer that is going to be used for the current output frame.
Returns the currently prepared video frame that has to be aggregated into the current output frame.
Checks if the pad currently has a buffer queued that is going to be used for the current output frame.
Allows selecting that this pad requires an output format with alpha
Drop the buffer currently queued in pad.
This checks if a pad has a buffer available that will be returned by a call to gstbase.aggregator_pad.AggregatorPad.peekBuffer or gstbase.aggregator_pad.AggregatorPad.popBuffer.
It is only valid to call this method from #GstAggregatorClass::aggregate()
Steal the ref to the buffer currently queued in pad.
Connect to BufferConsumed signal.