Add enhanced support for ASF files (partial)

git-svn-id: http://php-reader.googlecode.com/svn/trunk@102 51a70ab9-7547-0410-9469-37e369ee0574
2008-06-23 20:41:20 +00:00
parent 95345494fb
commit 3a84731d55
30 changed files with 3278 additions and 460 deletions
--- a/src/ASF/Object/Header.php
+++ b/src/ASF/Object/Header.php
@@ -0,0 +1,125 @@
+<?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    $Id$
+ */
+
+/**#@+ @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    $Rev$
+ */
+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"));
+  }
+}