/src/Zend/Media/Asf/Object/ScriptCommand.php
http://php-reader.googlecode.com/ · PHP · 183 lines · 85 code · 14 blank · 84 comment · 6 complexity · 976bf39f559df46b4394238cc7fdea9e MD5 · raw file
- <?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 ASF
- * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- * @version $Id: ScriptCommand.php 177 2010-03-09 13:13:34Z svollbehr $
- */
- /**#@+ @ignore */
- require_once 'Zend/Media/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.
- *
- * @category Zend
- * @package Zend_Media
- * @subpackage ASF
- * @author Sven Vollbehr <sven@vollbehr.eu>
- * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- * @version $Id: ScriptCommand.php 177 2010-03-09 13:13:34Z svollbehr $
- */
- final class Zend_Media_Asf_Object_ScriptCommand extends Zend_Media_Asf_Object
- {
- /** @var string */
- private $_reserved;
- /** @var Array */
- private $_commands = array();
- /**
- * Constructs the class with given parameters and reads object related data
- * from the ASF file.
- *
- * @param Zend_Io_Reader $reader The reader object.
- * @param Array $options The options array.
- */
- public function __construct($reader = null, &$options = array())
- {
- parent::__construct($reader, $options);
- if ($reader === null) {
- return;
- }
- $this->_reserved = $this->_reader->readGuid();
- $commandsCount = $this->_reader->readUInt16LE();
- $commandTypesCount = $this->_reader->readUInt16LE();
- $commandTypes = array();
- for ($i = 0; $i < $commandTypesCount; $i++) {
- $commandTypeNameLength = $this->_reader->readUInt16LE();
- $commandTypes[] = iconv
- ('utf-16le', $this->getOption('encoding'),
- $this->_reader->readString16($commandTypeNameLength * 2));
- }
- for ($i = 0; $i < $commandsCount; $i++) {
- $command = array
- ('presentationTime' => $this->_reader->readUInt32LE(),
- 'type' => $commandTypes[$this->_reader->readUInt16LE()]);
- $commandNameLength = $this->_reader->readUInt16LE();
- $command['name'] = iconv
- ('utf-16le', $this->getOption('encoding'),
- $this->_reader->readString16($commandNameLength * 2));
- $this->_commands[] = $command;
- }
- }
- /**
- * 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 type -- Specifies the type of this command.
- *
- * o name -- Specifies the name of this command.
- *
- * @return Array
- */
- public function getCommands()
- {
- return $this->_commands;
- }
- /**
- * Sets the array of index entries. Each entry is to consist of the
- * following keys.
- *
- * o presentationTime -- Specifies the presentation time of the command,
- * in milliseconds.
- *
- * o type -- Specifies the type of this command.
- *
- * o name -- Specifies the name of this command.
- *
- * @param Array $commands The array of index entries.
- */
- public function setCommands($commands)
- {
- $this->_commands = $commands;
- }
- /**
- * Writes the object data.
- *
- * @param Zend_Io_Writer $writer The writer object.
- * @return void
- */
- public function write($writer)
- {
- require_once 'Zend/Io/StringWriter.php';
-
- $commandTypes = array();
- foreach ($this->_commands as $command) {
- if (!in_array($command['type'], $commandTypes)) {
- $commandTypes[] = $command['type'];
- }
- }
- $commandTypesCount = count($commandTypes);
- $commandTypesWriter = new Zend_Io_StringWriter();
- for ($i = 0; $i < $commandTypesCount; $i++) {
- $commandTypesWriter
- ->writeUInt16LE
- (strlen($commandType = iconv
- ($this->getOption('encoding'), 'utf-16le',
- $commandTypes[$i])) / 2)
- ->write($commandType);
- }
- $commandsCount = count($this->_commands);
- $commandsWriter = new Zend_Io_StringWriter();
- for ($i = 0; $i < $commandsCount; $i++) {
- $commandsWriter
- ->writeUInt32LE($this->_commands[$i]['presentationTime'])
- ->writeUInt16LE
- (array_search($this->_commands[$i]['type'], $commandTypes))
- ->writeUInt16LE
- (strlen($command = iconv
- ($this->getOption('encoding'), 'utf-16le',
- $this->_commands[$i]['name'])) / 2)
- ->write($command);
- }
- $this->setSize
- (24 /* for header */ + 20 + $commandTypesWriter->getSize() +
- $commandsWriter->getSize());
- $writer->writeGuid($this->getIdentifier())
- ->writeInt64LE($this->getSize())
- ->writeGuid($this->_reserved)
- ->writeUInt16LE($commandsCount)
- ->writeUInt16LE($commandTypesCount)
- ->write($commandTypesWriter->toString())
- ->write($commandsWriter->toString());
- }
- }