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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: Header.php 102 2008-06-23 20:41:20Z svollbehr $
*/
/**#@+ @ignore */
require_once("ASF/Object/Container.php");
/**#@-*/
/**
* The role of the header object is to provide a well-known byte sequence at the
* beginning of ASF files and to contain all the information that is needed to
* properly interpret the information within the data object. The header object
* can optionally contain metadata such as bibliographic information.
*
* Of the three top-level ASF objects, the header object is the only one that
* contains other ASF objects. The header object may include a number of
* standard objects including, but not limited to:
*
* o File Properties Object -- Contains global file attributes.
* o Stream Properties Object -- Defines a digital media stream and its
* characteristics.
* o Header Extension Object -- Allows additional functionality to be added to
* an ASF file while maintaining backward compatibility.
* o Content Description Object -- Contains bibliographic information.
* o Script Command Object -- Contains commands that can be executed on the
* playback timeline.
* o Marker Object -- Provides named jump points within a file.
*
* Note that objects in the header object may appear in any order. To be valid,
* the header object must contain a {@link ASF_Object_FileProperties File
* Properties Object}, a {@link ASF_Object_HeaderExtension Header Extension
* Object}, and at least one {@link ASF_Object_StreamProperties Stream
* Properties Object}.
*
* @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: 102 $
*/
final class ASF_Object_Header extends ASF_Object_Container
{
const FILE_PROPERTIES = "8cabdca1-a947-11cf-8ee4-00c00c205365";
const STREAM_PROPERTIES = "b7dc0791-a9b7-11cf-8ee6-00c00c205365";
const HEADER_EXTENSION = "5fbf03b5-a92e-11cf-8ee3-00c00c205365";
const CODEC_LIST = "86d15240-311d-11d0-a3a4-00a0c90348f6";
const SCRIPT_COMMAND = "1efb1a30-0b62-11d0-a39b-00a0c90348f6";
const MARKER = "f487cd01-a951-11cf-8ee6-00c00c205365";
const BITRATE_MUTUAL_EXCLUSION = "d6e229dc-35da-11d1-9034-00a0c90349be";
const ERROR_CORRECTION = "75b22635-668e-11cf-a6d9-00aa0062ce6c";
const CONTENT_DESCRIPTION = "75b22633-668e-11cf-a6d9-00aa0062ce6c";
const EXTENDED_CONTENT_DESCRIPTION = "d2d0a440-e307-11d2-97f0-00a0c95ea850";
const CONTENT_BRANDING = "2211b3fa-bd23-11d2-b4b7-00a0c955fc6e";
const STREAM_BITRATE_PROPERTIES = "7bf875ce-468d-11d1-8d82-006097c9a2b2";
const CONTENT_ENCRYPTION = "2211b3fb-bd23-11d2-b4b7-00a0c955fc6e";
const EXTENDED_CONTENT_ENCRYPTION = "298ae614-2622-4c17-b935-dae07ee9289c";
const DIGITAL_SIGNATURE = "2211b3fc-bd23-11d2-b4b7-00a0c955fc6e";
const PADDING = "1806d474-cadf-4509-a4ba-9aabcb96aae8";
/**
* Constructs the class with given parameters and options.
*
* @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(6);
$this->constructObjects
(array
(self::FILE_PROPERTIES => "FileProperties",
self::STREAM_PROPERTIES => "StreamProperties",
self::HEADER_EXTENSION => "HeaderExtension",
self::CODEC_LIST => "CodecList",
self::SCRIPT_COMMAND => "ScriptCommand",
self::MARKER => "Marker",
self::BITRATE_MUTUAL_EXCLUSION => "BitrateMutualExclusion",
self::ERROR_CORRECTION => "ErrorCorrection",
self::CONTENT_DESCRIPTION => "ContentDescription",
self::EXTENDED_CONTENT_DESCRIPTION => "ExtendedContentDescription",
self::CONTENT_BRANDING => "ContentBranding",
self::STREAM_BITRATE_PROPERTIES => "StreamBitrateProperties",
self::CONTENT_ENCRYPTION => "ContentEncryption",
self::EXTENDED_CONTENT_ENCRYPTION => "ExtendedContentEncryption",
self::DIGITAL_SIGNATURE => "DigitalSignature",
self::PADDING => "Padding"));
}
}
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