Error Correction Object defines the error correction method. This * enables different error correction schemes to be used during content * creation. The Error Correction Object contains provisions for opaque * information needed by the error correction engine for recovery. For example, * if the error correction scheme were a simple N+1 parity scheme, then the * value of N would have to be available in this object. * * Note that this does not refer to the same thing as the Error Correction * Type field in the {@link ASF_Object_StreamProperties Stream Properties * Object}. * * @package php-reader * @subpackage ASF * @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: 108 $ */ final class ASF_Object_ErrorCorrection extends ASF_Object { /** @var string */ private $_type; /** @var string */ private $_data; /** * Constructs the class with given parameters and reads object related data * from the ASF file. * * @param Reader $reader The reader object. * @param Array $options The options array. */ public function __construct($reader, &$options = array()) { parent::__construct($reader, $options); $this->_type = $this->_reader->readGUID(); $dataLength = $this->_reader->readUInt32LE(); $this->_data = $this->_reader->read($dataLength); } /** * Returns the type of error correction. * * @return string */ public function getType() { return $this->_type; } /** * Returns the data specific to the error correction scheme. The structure for * the Error Correction Data field is determined by the value stored in * the Error Correction Type field. * * @return Array */ public function getData() { return $this->_data; } }