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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: ScriptCommand.php 108 2008-09-05 17:00:05Z svollbehr $
*/
/**#@+ @ignore */
require_once("ASF/Object.php");
/**#@-*/
/**
* The <i>Script Command Object</i> provides a list of type/parameter pairs of
* strings that are synchronized to the ASF file's timeline. Types can include
* URL or FILENAME values. Other type values may also be freely defined and
* used. The semantics and treatment of this set of types are defined by the
* local implementations. The parameter value is specific to the type field. You
* can use this type/parameter pairing for many purposes, including sending URLs
* to be launched by a client into an HTML frame (in other words, the URL type)
* or launching another ASF file for the chained continuous play of audio or
* video presentations (in other words, the FILENAME type). This object is also
* used as a method to stream text, as well as to provide script commands that
* you can use to control elements within the client environment.
*
* @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_ScriptCommand extends ASF_Object
{
/** @var Array */
private $_commandTypes = array();
/** @var Array */
private $_commands = 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->_reader->skip(16);
$commandsCount = $this->_reader->readUInt16LE();
$commandTypesCount = $this->_reader->readUInt16LE();
for ($i = 0; $i < $commandTypesCount; $i++) {
$commandTypeNameLength = $this->_reader->readUInt16LE();
$this->_commandTypes[] = iconv
("utf-16le", $this->getOption("encoding"),
$this->_reader->readString16LE($commandTypeNameLength * 2));
}
for ($i = 0; $i < $commandsCount; $i++) {
$command = array
("presentationTime" => $this->_reader->readUInt32LE(),
"typeIndex" => $this->_reader->readUInt16LE());
$commandNameLength = $this->_reader->readUInt16LE();
$command["name"] = iconv
("utf-16le", $this->getOption("encoding"),
$this->_reader->readString16LE($commandNameLength * 2));
$this->_commands[] = $command;
}
}
/**
* Returns an array of command type names.
*
* @return Array
*/
public function getCommandTypes() { return $this->_commandTypes; }
/**
* Returns an array of index entries. Each entry consists of the following
* keys.
*
* o presentationTime -- Specifies the presentation time of the command, in
* milliseconds.
*
* o typeIndex -- Specifies the type of this command, as a zero-based index
* into the array of Command Types of this object.
*
* o name -- Specifies the name of this command.
*
* @return Array
*/
public function getCommands() { return $this->_commands; }
}
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