Meta Box contains descriptive or annotative metadata. The
* meta box is required to contain a {@link ISO14496_Box_HDLR hdlr} box
* indicating the structure or format of the meta box contents. That
* metadata is located either within a box within this box (e.g. an XML box), or
* is located by the item identified by a primary item box.
*
* All other contained boxes are specific to the format specified by the handler
* box.
*
* The other boxes defined here may be defined as optional or mandatory for a
* given format. If they are used, then they must take the form specified here.
* These optional boxes include a data-information box, which documents other
* files in which metadata values (e.g. pictures) are placed, and a item
* location box, which documents where in those files each item is located (e.g.
* in the common case of multiple pictures stored in the same file). At most one
* meta box may occur at each of the file level, movie level, or track level.
*
* If an {@link ISO14496_Box_IPRO Item Protection Box} occurs, then some or all
* of the meta-data, including possibly the primary resource, may have been
* protected and be un-readable unless the protection system is taken into
* account.
*
* @package php-reader
* @subpackage ISO 14496
* @author Sven Vollbehr
* @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
* @license http://code.google.com/p/php-reader/wiki/License New BSD License
* @version $Rev: 92 $
*/
final class ISO14496_Box_META extends ISO14496_Box_Full
{
/**
* Constructs the class with given parameters and reads box related data from
* the ISO Base Media file.
*
* @param Reader $reader The reader object.
*/
public function __construct($reader = null, &$options = array())
{
parent::__construct($reader, $options);
$this->setContainer(true);
if ($reader === null)
return;
$this->constructBoxes();
}
}