diff options
Diffstat (limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/BandwidthSharing.php')
| -rw-r--r-- | libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/BandwidthSharing.php | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/BandwidthSharing.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/BandwidthSharing.php new file mode 100644 index 0000000..532ae58 --- /dev/null +++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/BandwidthSharing.php @@ -0,0 +1,133 @@ +<?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: BandwidthSharing.php 108 2008-09-05 17:00:05Z svollbehr $ + */ + +/**#@+ @ignore */ +require_once("ASF/Object.php"); +/**#@-*/ + +/** + * The <i>Bandwidth Sharing Object</i> indicates streams that share bandwidth in + * such a way that the maximum bandwidth of the set of streams is less than the + * sum of the maximum bandwidths of the individual streams. There should be one + * instance of this object for each set of objects that share bandwidth. Whether + * or not this object can be used meaningfully is content-dependent. + * + * @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_BandwidthSharing extends ASF_Object +{ + const SHARING_EXCLUSIVE = "af6060aa-5197-11d2-b6af-00c04fd908e9"; + const SHARING_PARTIAL = "af6060ab-5197-11d2-b6af-00c04fd908e9"; + + /** @var string */ + private $_sharingType; + + /** @var integer */ + private $_dataBitrate; + + /** @var integer */ + private $_bufferSize; + + /** @var Array */ + private $_streamNumbers = 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->_sharingType = $this->_reader->readGUID(); + $this->_dataBitrate = $this->_reader->readUInt32LE(); + $this->_bufferSize = $this->_reader->readUInt32LE(); + $streamNumbersCount = $this->_reader->readUInt16LE(); + for ($i = 0; $i < $streamNumbersCount; $i++) + $this->_streamNumbers[] = $this->_reader->readUInt16LE(); + } + + /** + * Returns the type of sharing relationship for this object. Two types are + * predefined: SHARING_PARTIAL, in which any number of the streams in the + * relationship may be streaming data at any given time; and + * SHARING_EXCLUSIVE, in which only one of the streams in the relationship + * may be streaming data at any given time. + * + * @return string + */ + public function getSharingType() { return $this->_sharingType; } + + /** + * Returns the leak rate R, in bits per second, of a leaky bucket that + * contains the data portion of all of the streams, excluding all ASF Data + * Packet overhead, without overflowing. The size of the leaky bucket is + * specified by the value of the Buffer Size field. This value can be less + * than the sum of all of the data bit rates in the + * {@link ASF_Object_ExtendedStreamProperties Extended Stream Properties} + * Objects for the streams contained in this bandwidth-sharing relationship. + * + * @return integer + */ + public function getDataBitrate() { return $this->_dataBitrate; } + + /** + * Specifies the size B, in bits, of the leaky bucket used in the Data Bitrate + * definition. This value can be less than the sum of all of the buffer sizes + * in the {@link ASF_Object_ExtendedStreamProperties Extended Stream + * Properties} Objects for the streams contained in this bandwidth-sharing + * relationship. + * + * @return integer + */ + public function getBufferSize() { return $this->_bufferSize; } + + /** + * Returns an array of stream numbers. + * + * @return Array + */ + public function getStreamNumbers() { return $this->_streamNumbers; } +} |