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Diffstat (limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/FileProperties.php')
| -rw-r--r-- | libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/FileProperties.php | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/FileProperties.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/FileProperties.php new file mode 100644 index 0000000..c1e4ada --- /dev/null +++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/FileProperties.php @@ -0,0 +1,255 @@ +<?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: FileProperties.php 102 2008-06-23 20:41:20Z svollbehr $ + */ + +/**#@+ @ignore */ +require_once("ASF/Object.php"); +/**#@-*/ + +/** + * The <i>File Properties Object</i> defines the global characteristics of the + * combined digital media streams found within the Data 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_FileProperties extends ASF_Object +{ + /** + * Indicates, if set, that a file is in the process of being created (for + * example, for recording applications), and thus that various values stored + * in the header objects are invalid. It is highly recommended that + * post-processing be performed to remove this condition at the earliest + * opportunity. + */ + const BROADCAST = 1; + + /** + * Indicates, if set, that a file is seekable. Note that for files containing + * a single audio stream and a <i>Minimum Data Packet Size</i> field equal to + * the <i>Maximum Data Packet Size</i> field, this flag shall always be set to + * 1. For files containing a single audio stream and a video stream or + * mutually exclusive video streams, this flag is only set to 1 if the file + * contains a matching <i>Simple Index Object</i> for each regular video + * stream. + */ + const SEEKABLE = 2; + + /** @var string */ + private $_fileId; + + /** @var integer */ + private $_fileSize; + + /** @var integer */ + private $_creationDate; + + /** @var integer */ + private $_dataPacketsCount; + + /** @var integer */ + private $_playDuration; + + /** @var integer */ + private $_sendDuration; + + /** @var integer */ + private $_preroll; + + /** @var integer */ + private $_flags; + + /** @var integer */ + private $_minimumDataPacketSize; + + /** @var integer */ + private $_maximumDataPacketSize; + + /** @var integer */ + private $_maximumBitrate; + + /** + * 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->_fileSize = $this->_reader->readInt64LE(); + $this->_creationDate = $this->_reader->readInt64LE(); + $this->_dataPacketsCount = $this->_reader->readInt64LE(); + $this->_playDuration = $this->_reader->readInt64LE(); + $this->_sendDuration = $this->_reader->readInt64LE(); + $this->_preroll = $this->_reader->readInt64LE(); + $this->_flags = $this->_reader->readUInt32LE(); + $this->_minimumDataPacketSize = $this->_reader->readUInt32LE(); + $this->_maximumDataPacketSize = $this->_reader->readUInt32LE(); + $this->_maximumBitrate = $this->_reader->readUInt32LE(); + } + + /** + * Returns the file id field. + * + * @return integer + */ + public function getFileId() { return $this->_fileId; } + + /** + * Returns the size, in bytes, of the entire file. The value of this field is + * invalid if the broadcast flag bit in the flags field is set to 1. + * + * @return integer + */ + public function getFileSize() { return $this->_fileSize; } + + /** + * Returns the date and time of the initial creation of the file. The value is + * given as the number of 100-nanosecond intervals since January 1, 1601, + * according to Coordinated Universal Time (Greenwich Mean Time). The value of + * this field may be invalid if the broadcast flag bit in the flags field is + * set to 1. + * + * @return integer + */ + public function getCreationDate() { return $this->_creationDate; } + + /** + * Returns the number of Data Packet entries that exist within the + * {@link ASF_Object_Data Data Object}. The value of this field is invalid if + * the broadcast flag bit in the flags field is set to 1. + * + * @return integer + */ + public function getDataPacketsCount() { return $this->_dataPacketsCount; } + + /** + * Returns the time needed to play the file in 100-nanosecond units. This + * value should include the duration (estimated, if an exact value is + * unavailable) of the the last media object in the presentation. The value of + * this field is invalid if the broadcast flag bit in the flags field is set + * to 1. + * + * @return integer + */ + public function getPlayDuration() { return $this->_playDuration; } + + /** + * Returns the time needed to send the file in 100-nanosecond units. This + * value should include the duration of the last packet in the content. The + * value of this field is invalid if the broadcast flag bit in the flags field + * is set to 1. + * + * @return integer + */ + public function getSendDuration() { return $this->_sendDuration; } + + /** + * Returns the amount of time to buffer data before starting to play the file, + * in millisecond units. If this value is nonzero, the <i>Play Duration</i> + * field and all of the payload <i>Presentation Time</i> fields have been + * offset by this amount. Therefore, player software must subtract the value + * in the preroll field from the play duration and presentation times to + * calculate their actual values. + * + * @return integer + */ + public function getPreroll() { return $this->_preroll; } + + /** + * Checks whether or not the flag is set. Returns <var>true</var> if the flag + * is set, <var>false</var> otherwise. + * + * @param integer $flag The flag to query. + * @return boolean + */ + public function hasFlag($flag) { return ($this->_flags & $flag) == $flag; } + + /** + * Returns the flags field. + * + * @return integer + */ + public function getFlags() { return $this->_flags; } + + /** + * Returns the minimum <i>Data Packet</i> size in bytes. In general, the value + * of this field is invalid if the broadcast flag bit in the flags field is + * set to 1. However, the values for the <i>Minimum Data Packet Size</i> and + * <i>Maximum Data Packet Size</i> fields shall be set to the same value, and + * this value should be set to the packet size, even when the broadcast flag + * in the flags field is set to 1. + * + * @return integer + */ + public function getMinimumDataPacketSize() + { + return $this->_minimumDataPacketSize; + } + + /** + * Returns the maximum <i>Data Packet</i> size in bytes. In general, the value + * of this field is invalid if the broadcast flag bit in the flags field is + * set to 1. However, the values for the <i>Minimum Data Packet Size</i> and + * <i>Maximum Data Packet Size</i> fields shall be set to the same value, and + * this value should be set to the packet size, even when the broadcast flag + * in the flags field is set to 1. + * + * @return integer + */ + public function getMaximumDataPacketSize() + { + return $this->_maximumDataPacketSize; + } + + /** + * Returns the maximum instantaneous bit rate in bits per second for the + * entire file. This is equal the sum of the bit rates of the individual + * digital media streams. + * + * @return integer + */ + public function getMaximumBitrate() { return $this->_maximumBitrate; } +} |