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<?php
/**
* PHP Reader Library
*
* Copyright (c) 2006-2008 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 ASF
* @copyright Copyright (c) 2006-2008 The PHP Reader Project Workgroup
* @license http://code.google.com/p/php-reader/wiki/License New BSD License
* @version $Id: ExtendedContentDescription.php 108 2008-09-05 17:00:05Z svollbehr $
*/
/**#@+ @ignore */
require_once("ASF/Object.php");
/**#@-*/
/**
* The <i>ASF_Extended_Content_Description_Object</i> object implementation.
* This object contains unlimited number of attribute fields giving more
* information about the file.
*
* @package php-reader
* @subpackage ASF
* @author Sven Vollbehr <svollbehr@gmail.com>
* @copyright Copyright (c) 2006-2008 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_ExtendedContentDescription extends ASF_Object
{
/** @var Array */
private $_contentDescriptors = array();
/**
* 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);
$contentDescriptorsCount = $this->_reader->readUInt16LE();
for ($i = 0; $i < $contentDescriptorsCount; $i++) {
$nameLen = $this->_reader->readUInt16LE();
$name = iconv
("utf-16le", $this->getOption("encoding"),
$this->_reader->readString16LE($nameLen));
$valueDataType = $this->_reader->readUInt16LE();
$valueLen = $this->_reader->readUInt16LE();
switch ($valueDataType) {
case 0:
case 1: // string
$this->_contentDescriptors[$name] = iconv
("utf-16le", $this->getOption("encoding"),
$this->_reader->readString16LE($valueLen));
break;
case 2: // bool
case 3: // 32-bit integer
$this->_contentDescriptors[$name] = $this->_reader->readUInt32LE();
break;
case 4: // 64-bit integer
$this->_contentDescriptors[$name] = $this->_reader->readInt64LE();
break;
case 5: // 16-bit integer
$this->_contentDescriptors[$name] = $this->_reader->readUInt16LE();
break;
default:
}
}
}
/**
* Returns the value of the specified descriptor or <var>false</var> if there
* is no such descriptor defined.
*
* @param string $name The name of the descriptor (ie the name of the field).
* @return string|false
*/
public function getDescriptor($name)
{
if (isset($this->_contentDescriptors[$name]))
return $this->_contentDescriptors[$name];
return false;
}
/**
* Returns an associate array of all the descriptors defined having the names
* of the descriptors as the keys.
*
* @return Array
*/
public function getDescriptors() { return $this->_contentDescriptors; }
}
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