The returned #GstTaskPool is used internally for performing parallel
video format conversions/scaling/etc during the
#GstVideoAggregatorPadClass::prepare_frame_start() process.
Subclasses can add their own operation to perform using the returned
#GstTaskPool during #GstVideoAggregatorClass::aggregate_frames().
The returned #GstTaskPool is used internally for performing parallel video format conversions/scaling/etc during the #GstVideoAggregatorPadClass::prepare_frame_start() process. Subclasses can add their own operation to perform using the returned #GstTaskPool during #GstVideoAggregatorClass::aggregate_frames().