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<?php
/**
* PHP Reader Library
*
* Copyright (c) 2008 The PHP Reader Project Workgroup. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the project workgroup nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @package php-reader
* @subpackage ISO 14496
* @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
* @license http://code.google.com/p/php-reader/wiki/License New BSD License
* @version $Id: ID32.php 93 2008-05-10 17:11:44Z svollbehr $
*/
/**#@+ @ignore */
require_once("ISO14496/Box/Full.php");
/**#@-*/
/**
* The <i>ID3v2 Box</i> resides under the {@link ISO14496_Box_META Meta Box} and
* stores ID3 version 2 meta-data. There may be more than one ID3v2 Box present
* each with a different language code.
*
* @package php-reader
* @subpackage ISO 14496
* @author Sven Vollbehr <svollbehr@gmail.com>
* @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
* @license http://code.google.com/p/php-reader/wiki/License New BSD License
* @version $Rev: 93 $
*/
final class ISO14496_Box_ID32 extends ISO14496_Box_Full
{
/** @var string */
private $_language = "und";
/** @var ID3v2 */
private $_tag;
/**
* 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, $options);
if ($reader === null)
return;
$this->_language =
chr(((($tmp = $this->_reader->readUInt16BE()) >> 10) & 0x1f) + 0x60) .
chr((($tmp >> 5) & 0x1f) + 0x60) . chr(($tmp & 0x1f) + 0x60);
$this->_tag = new ID3v2($this->_reader, array("readonly" => true));
}
/**
* Returns the three byte language code to describe the language of this
* media, according to {@link http://www.loc.gov/standards/iso639-2/
* ISO 639-2/T}.
*
* @return string
*/
public function getLanguage() { return $this->_language; }
/**
* Sets the three byte language code as specified in the
* {@link http://www.loc.gov/standards/iso639-2/ ISO 639-2} standard.
*
* @param string $language The language code.
*/
public function setLanguage($language) { $this->_language = $language; }
/**
* Returns the {@link ID3v2} tag class instance.
*
* @return string
*/
public function getTag() { return $this->_tag; }
/**
* Sets the {@link ID3v2} tag class instance using given language.
*
* @param ID3v2 $tag The tag instance.
* @param string $language The language code.
*/
public function setTag($tag, $language = false)
{
$this->_tag = $tag;
if ($language !== false)
$this->_language = $language;
}
/**
* Returns the box raw data.
*
* @return string
*/
public function __toString($data = "")
{
return parent::__toString
(Transform::toUInt16BE
(((ord($this->_language[0]) - 0x60) << 10) |
((ord($this->_language[1]) - 0x60) << 5) |
ord($this->_language[2]) - 0x60) . $this->_tag);
}
}
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