This checks if a pad has a buffer available that will be returned by a call to gst_aggregator_pad_peek_buffer() or gst_aggregator_pad_pop_buffer().
%TRUE if the pad has a buffer available as the next thing.
1.14.1
See Implementation
This checks if a pad has a buffer available that will be returned by a call to gst_aggregator_pad_peek_buffer() or gst_aggregator_pad_pop_buffer().