Use this function to determine what input buffers will be aggregated
to produce the next output buffer. This should only be called from
a #GstAggregator::samples-selected handler, and can be used to precisely
control aggregating parameters for a given set of input samples.
The sample that is about to be aggregated. It may hold a #GstBuffer
or a #GstBufferList. The contents of its info structure is subclass-dependent,
and documented on a subclass basis. The buffers held by the sample are
not writable.
Use this function to determine what input buffers will be aggregated to produce the next output buffer. This should only be called from a #GstAggregator::samples-selected handler, and can be used to precisely control aggregating parameters for a given set of input samples.