public class DataReferenceBox extends com.googlecode.mp4parser.FullContainerBox
The data reference object contains a table of data references (normally URLs) that declare the location(s) of
the media data used within the presentation. The data reference index in the sample description ties entries in
this table to the samples in the track. A track may be split over several sources in this way.
If the flag is set indicating that the data is in the same file as this box, then no string (not even an empty one)
shall be supplied in the entry field.
The DataEntryBox within the DataReferenceBox shall be either a DataEntryUrnBox or a DataEntryUrlBox.