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. Thread flags: @GST_THREAD_CREATE: The thread is being created. @GST_THREAD_STATE_STARTED: @GST_THREAD_STATE_SPINNING: The thread is runnning @GST_THREAD_STATE_REAPING: The thread is ending. @GST_THREAD_STATE_ELEMENT_CHANGED: @GST_THREAD_FLAG_LAST: subclass use this to start their enumeration @name: @Returns: TRUE if the thread should be created.