1 files changed, 143 insertions, 0 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/SimpleIndex.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/SimpleIndex.php
new file mode 100644
index 0000000..14de7c9
--- /dev/null
+++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/SimpleIndex.php
@@ -0,0 +1,143 @@
+<?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: SimpleIndex.php 108 2008-09-05 17:00:05Z svollbehr $
+ */
+
+/**#@+ @ignore */
+require_once("ASF/Object.php");
+/**#@-*/
+
+/**
+ * For each video stream in an ASF file, there should be one instance of the
+ * <i>Simple Index Object</i>. Additionally, the instances of the <i>Simple
+ * Index Object</i> shall be ordered by stream number.
+ * 
+ * Index entries in the <i>Simple Index Object</i> are in terms of
+ * <i>Presentation Times</i>. The corresponding <i>Packet Number</i> field
+ * values (of the <i>Index Entry</i>, see below) indicate the packet number of
+ * the ASF <i>Data Packet</i> with the closest past key frame. Note that for
+ * video streams that contain both key frames and non-key frames, the <i>Packet
+ * Number</i> field will always point to the closest past key frame.
+ *
+ * @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_SimpleIndex extends ASF_Object
+{
+  /** @var string */
+  private $_fileId;
+
+  /** @var integer */
+  private $_indexEntryTimeInterval;
+
+  /** @var integer */
+  private $_maximumPacketCount;
+
+  /** @var Array */
+  private $_indexEntries = 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->_fileId = $this->_reader->readGUID();
+    $this->_indexEntryTimeInterval = $this->_reader->readInt64LE();
+    $this->_maximumPacketCount = $this->_reader->readUInt32LE();
+    $indexEntriesCount = $this->_reader->readUInt32LE();
+    for ($i = 0; $i < $indexEntriesCount; $i++) {
+      $this->_indexEntries[] = array
+        ("packetNumber" => $this->_reader->readUInt32LE(),
+         "packetCount" => $this->_reader->readUInt16LE());
+    }
+  }
+
+  /**
+   * Returns the unique identifier for this ASF file. The value of this field
+   * should be changed every time the file is modified in any way. The value of
+   * this field may be set to 0 or set to be identical to the value of the
+   * <i>File ID</i> field of the <i>Data Object</i> and the <i>Header
+   * Object</i>.
+   *
+   * @return string
+   */
+  public function getFileId() { return $this->_fileId; }
+
+  /**
+   * Returns the time interval between each index entry in 100-nanosecond units.
+   * The most common value is 10000000, to indicate that the index entries are
+   * in 1-second intervals, though other values can be used as well.
+   *
+   * @return integer
+   */
+  public function getIndexEntryTimeInterval()
+  {
+    return $this->_indexEntryTimeInterval;
+  }
+
+  /**
+   * Returns the maximum <i>Packet Count</i> value of all <i>Index Entries</i>.
+   *
+   * @return integer
+   */
+  public function getMaximumPacketCount() { return $this->_maximumPacketCount; }
+
+  /**
+   * Returns an array of index entries. Each entry consists of the following
+   * keys.
+   * 
+   *   o packetNumber -- Specifies the number of the Data Packet associated
+   *     with this index entry. Note that for video streams that contain both
+   *     key frames and non-key frames, this field will always point to the
+   *     closest key frame prior to the time interval.
+   * 
+   *   o packetCount -- Specifies the number of <i>Data Packets</i> to send at
+   *     this index entry. If a video key frame has been fragmented into two
+   *     Data Packets, the value of this field will be equal to 2.
+   *
+   * @return Array
+   */
+  public function getIndexEntries() { return $this->_indexEntries; }
+}