* @(#)Track.java 1.0 2011-02-20
* Copyright (c) 2011 Werner Randelshofer, Goldau, Switzerland.
* All rights reserved.
* You may not use, copy or modify this file, except in compliance with the
* license agreement you entered into with Werner Randelshofer.
* For details see accompanying license terms.
Trackrefers to media data that can be interpreted in a time coordinate system.
A track is the output of a