Absolute accumulative offset of object "begin" with respect to transport,
or Long.MaxValue if undefined.
Absolute accumulative offset of object "begin" with respect to transport,
or Long.MaxValue if undefined.
This must be called before initTransport and before initTimeline.
This must be called before initTransport and before initTimeline.
This must be called after initPosition and after initTimeline.
This must be called after initPosition and after initTimeline.
Last frame offset for which view-state has been updated.
Last frame offset for which view-state has been updated.
will be initialised in initTransport.