Parse an allocation query, writing the requested caps in @caps and whether a pool is needed in @need_pool, if the respective parameters are non-%NULL.
Pool details can be retrieved using gst_query_get_n_allocation_pools() and gst_query_parse_nth_allocation_pool().
The #GstCaps
Whether a #GstBufferPool is needed
See Implementation
Parse an allocation query, writing the requested caps in @caps and whether a pool is needed in @need_pool, if the respective parameters are non-%NULL.
Pool details can be retrieved using gst_query_get_n_allocation_pools() and gst_query_parse_nth_allocation_pool().