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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 ASF
* @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
* @license http://code.google.com/p/php-reader/wiki/License New BSD License
* @version $Id: GroupMutualExclusion.php 108 2008-09-05 17:00:05Z svollbehr $
*/
/**#@+ @ignore */
require_once("ASF/Object.php");
/**#@-*/
/**
* The <i>Group Mutual Exclusion Object</i> is used to describe mutual exclusion
* relationships between groups of streams. This object is organized in terms of
* records, each containing one or more streams, where a stream in record N
* cannot coexist with a stream in record M for N != M (however, streams in the
* same record can coexist). This mutual exclusion object would be used
* typically for the purpose of language mutual exclusion, and a record would
* consist of all streams for a particular language.
*
* @package php-reader
* @subpackage ASF
* @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: 108 $
*/
final class ASF_Object_GroupMutualExclusion extends ASF_Object
{
const MUTEX_LANGUAGE = "d6e22a00-35da-11d1-9034-00a0c90349be";
const MUTEX_BITRATE = "d6e22a01-35da-11d1-9034-00a0c90349be";
const MUTEX_UNKNOWN = "d6e22a02-35da-11d1-9034-00a0c90349be";
/** @var string */
private $_exclusionType;
/** @var Array */
private $_records = 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);
$this->_exclusionType = $this->_reader->readGUID();
$recordCount = $this->_reader->readUInt16LE();
for ($i = 0; $i < $recordCount; $i++) {
$streamNumbersCount = $this->_reader->readUInt16LE();
$streamNumbers = array();
for ($j = 0; $j < $streamNumbersCount; $j++)
$streamNumbers[] = array
("streamNumbers" => $this->_reader->readUInt16LE());
$this->_records[] = $streamNumbers;
}
}
/**
* Returns the nature of the mutual exclusion relationship.
*
* @return string
*/
public function getExclusionType() { return $this->_exclusionType; }
/**
* Returns an array of records. Each record consists of the following keys.
*
* o streamNumbers -- Specifies the stream numbers for this record. Valid
* values are between 1 and 127.
*
* @return Array
*/
public function getRecords() { return $this->_records; }
}
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