/**
* Constructs the class with given parameters and options.
*
* @param Zend_Io_Reader $reader The reader object.
* @param Array $options The options array.
*/
public function __construct($reader, &$options = array())
{
$this->_reader = $reader;
$this->_options =& $options;
if (($this->_reader = $reader) === null) {
if (defined($constant = 'self::' . strtoupper(preg_replace('/(?<=[a-z])[A-Z]/', '_$0', substr(get_class($this), 22))))) {
$this->_identifier = constant($constant);
} else {
throw new Zend_Media_Asf_Exception('Object identifier could not be determined');
}
} else {
$this->_offset = $this->_reader->getOffset();
$this->_identifier = $this->_reader->readGuid();
$this->_size = $this->_reader->readInt64LE();
}
}
