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Add base class for Vorbis headers

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git-svn-id: http://php-reader.googlecode.com/svn/trunk@232 51a70ab9-7547-0410-9469-37e369ee0574
This commit is contained in:
svollbehr
2011-05-14 13:09:03 +00:00
parent 87227f7758
commit acce677af2
2 changed files with 212 additions and 0 deletions
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39
src/Zend/Media/Vorbis/Exception.php Normal file
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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Media
* @subpackage Vorbis
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**#@+ @ignore */
require_once 'Zend/Media/Exception.php';
/**#@-*/
/**
* The Zend_Media_Vorbis_Exception is thrown whenever an error occurs within the Vorbis family of classes.
*
* @category Zend
* @package Zend_Media
* @subpackage Vorbis
* @author Sven Vollbehr <sven@vollbehr.eu>
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
class Zend_Media_Vorbis_Exception extends Zend_Media_Exception
{}

173
src/Zend/Media/Vorbis/Header.php Normal file
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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Media
* @subpackage Vorbis
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**#@+ @ignore */
require_once 'Zend/Io/Reader.php';
/**#@-*/
/**
* A Vorbis bitstream begins with three header packets. The header packets are, in order, the identication header, the
* comments header, and the setup header. All are required for decode compliance. This class is the base class for all
* these headers.
*
* @category Zend
* @package Zend_Media
* @subpackage Vorbis
* @author Sven Vollbehr <sven@vollbehr.eu>
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
abstract class Zend_Media_Vorbis_Header
{
/**
* The reader object.
*
* @var Reader
*/
protected $_reader;
/**
* The options array.
*
* @var Array
*/
private $_options;
/**
* The packet type; the identication header is type 1, the comment header type 3 and the setup header type 5.
*
* @var Array
*/
protected $_packetType;
/**
* Constructs the class with given parameters.
*
* @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 (!in_array($this->_packetType = $this->_reader->readUInt8(), array(1, 3, 5))) {
require_once 'Zend/Media/Vorbis/Exception.php';
throw new Zend_Media_Vorbis_Exception('Unknown header packet type: ' . $this->_packetType);
}
if (($vorbis = $this->_reader->read(6)) != 'vorbis') {
require_once 'Zend/Media/Vorbis/Exception.php';
throw new Zend_Media_Vorbis_Exception('Unknown header packet: ' . $vorbis);
}
}
/**
* Returns the options array.
*
* @return Array
*/
public final function &getOptions()
{
return $this->_options;
}
/**
* Returns the given option value, or the default value if the option is not
* defined.
*
* @param string $option The name of the option.
* @param mixed $defaultValue The default value to be returned.
*/
public final function getOption($option, $defaultValue = null)
{
if (isset($this->_options[$option])) {
return $this->_options[$option];
}
return $defaultValue;
}
/**
* Sets the options array. See main class for available options.
*
* @param Array $options The options array.
*/
public final function setOptions(&$options)
{
$this->_options = &$options;
}
/**
* Sets the given option the given value.
*
* @param string $option The name of the option.
* @param mixed $value The value to set for the option.
*/
public final function setOption($option, $value)
{
$this->_options[$option] = $value;
}
/**
* Clears the given option value.
*
* @param string $option The name of the option.
*/
public final function clearOption($option)
{
unset($this->_options[$option]);
}
/**
* Magic function so that $obj->value will work.
*
* @param string $name The field name.
* @return mixed
*/
public function __get($name)
{
if (method_exists($this, 'get' . ucfirst($name))) {
return call_user_func(array($this, 'get' . ucfirst($name)));
} else {
require_once 'Zend/Media/Vorbis/Exception.php';
throw new Zend_Media_Vorbis_Exception('Unknown field: ' . $name);
}
}
/**
* Magic function so that assignments with $obj->value will work.
*
* @param string $name The field name.
* @param string $value The field value.
* @return mixed
*/
public function __set($name, $value)
{
if (method_exists($this, 'set' . ucfirst($name))) {
call_user_func
(array($this, 'set' . ucfirst($name)), $value);
} else {
require_once 'Zend/Media/Vorbis/Exception.php';
throw new Zend_Media_Vorbis_Exception('Unknown field: ' . $name);
}
}
}