GstFlowCombiner
gst_flow_combiner_new
gst_flow_combiner_free
+gst_flow_combiner_ref
+gst_flow_combiner_unref
gst_flow_combiner_update_flow
gst_flow_combiner_add_pad
gst_flow_combiner_remove_pad
gst_queue_array_pop_head
gst_queue_array_peek_head
gst_queue_array_push_tail
+gst_queue_array_pop_tail
+gst_queue_array_peek_tail
gst_queue_array_is_empty
gst_queue_array_drop_element
gst_queue_array_find