Encryption method * registration frame. * * The owner identifier a URL containing an email address, or a link to a * location where an email address can be found, that belongs to the * organisation responsible for this specific encryption method. Questions * regarding the encryption method should be sent to the indicated email * address. * * The method symbol contains a value that is associated with this method * throughout the whole tag, in the range $80-F0. All other values are reserved. * The method symbol may optionally be followed by encryption specific data. * * There may be several ENCR frames in a tag but only one containing the same * symbol and only one containing the same owner identifier. The method must be * used somewhere in the tag. See {@link ID3_Frame#ENCRYPTION} for more * information. * * @package php-reader * @subpackage ID3 * @author Sven Vollbehr * @author Ryan Butterfield * @copyright Copyright (c) 2008 The PHP Reader Project Workgroup * @license http://code.google.com/p/php-reader/wiki/License New BSD License * @version $Rev: 105 $ */ final class ID3_Frame_ENCR extends ID3_Frame { /** @var string */ private $_owner; /** @var integer */ private $_method; /** @var string */ private $_encryptionData; /** * Constructs the class with given parameters and parses object related data. * * @param Reader $reader The reader object. * @param Array $options The options array. */ public function __construct($reader = null, &$options = array()) { parent::__construct($reader, $options); if ($reader === null) return; list($this->_owner, $this->_data) = $this->explodeString8($this->_data, 2); $this->_method = Transform::fromInt8($this->_data[0]); $this->_encryptionData = substr($this->_data, 1); } /** * Returns the owner identifier string. * * @return string */ public function getOwner() { return $this->_owner; } /** * Sets the owner identifier string. * * @param string $owner The owner identifier string. */ public function setOwner($owner) { $this->_owner = $owner; } /** * Returns the method symbol. * * @return integer */ public function getMethod() { return $this->_method; } /** * Sets the method symbol. * * @param integer $method The method symbol byte. */ public function setMethod($method) { $this->_method = $method; } /** * Returns the encryption data. * * @return string */ public function getEncryptionData() { return $this->_encryptionData; } /** * Sets the encryption data. * * @param string $encryptionData The encryption data string. */ public function setEncryptionData($encryptionData) { $this->_encryptionData = $encryptionData; } /** * Returns the frame raw data. * * @return string */ public function __toString() { parent::setData ($this->_owner . "\0" . Transform::toInt8($this->_method) . $this->_encryptionData); return parent::__toString(); } }