get_prepared_frame

Returns the currently prepared video frame that has to be aggregated into the current output frame.

This must only be called from the GstVideoAggregatorClass::aggregate_framess virtual method, or from the GstVideoAggregatorPadClass::prepare_frame virtual method of the aggregator pads.

The return value is only valid until GstVideoAggregatorClass::aggregate_framess or GstVideoAggregatorPadClass::prepare_frame returns.

Parameters:

Returns: