The item information box provides extra information about selected items,
including symbolic ('file') names. It may optionally occur, but if it does,
it must be interpreted, as item protection or content encoding may have
changed the format of the data in the item. If both content encoding and
protection are indicated for an item, a reader should first un-protect the
item, and then decode the item's content encoding. If more control is needed,
an IPMP sequence code may be used.
This box contains an array of entries, and each entry is formatted as a box.
This array is sorted by increasing item ID in the entry records.
Two versions of the item info entry are defined. Version 1 includes
additional information to version 0 as specified by an extension type. For
instance, it shall be used with extension type 'fdel' for items that are
referenced by the file partition box ('fpar'), which is defined for source
file partitionings and applies to file delivery transmissions.
If no extension is desired, the box may terminate without the extension type
field and the extension; if, in addition, content encoding is not desired,
that field also may be absent and the box terminate before it.
Fields inherited from class net.sourceforge.jaad.mp4.boxes.FullBox