new_element bin 0.9.2 GtkObject::user_data thread thread 0.9.2 GstThread::create_thread true GtkObject::user_data identity identity 0.9.2 sink queue.src src fakesink.sink GtkObject::user_data fakesink fakesink 0.9.2 sink identity.src GtkObject::user_data queue queue 0.9.2 sink identity1.src src identity.sink GstQueue::level 0 GstQueue::max_level 20 GtkObject::user_data fakesrc fakesrc 0.9.2 src identity1.sink GtkObject::user_data identity1 identity 0.9.2 sink fakesrc.src src queue.sink GtkObject::user_data