GstThread A bin that will become a thread A bin that will become a thread if possible when the pipeline is started up. Can contain any set of GstObjects except another GstThread. All starting points and/or clocked events must be registered with this object, to be dealt with in the separate thread. GST_THREAD_CREATE The thread is being created. GST_THREAD_STATE_SPINNING The thread is runnning GST_THREAD_STATE_REAPING The thread is ending. @name: @Returns: @arg: @thread: TRUE if the thread should be created.