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Diffstat (limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/TimecodeIndexParameters.php')
| -rw-r--r-- | libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/TimecodeIndexParameters.php | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/TimecodeIndexParameters.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/TimecodeIndexParameters.php new file mode 100644 index 0000000..a7a9ef8 --- /dev/null +++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ASF/Object/TimecodeIndexParameters.php @@ -0,0 +1,125 @@ +<?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: TimecodeIndexParameters.php 108 2008-09-05 17:00:05Z svollbehr $ + */ + +/**#@+ @ignore */ +require_once("ASF/Object.php"); +/**#@-*/ + +/** + * The <i>Timecode Index Parameters Object</i> supplies information about those + * streams that are actually indexed (there must be at least one stream in an + * index) by timecodes. All streams referred to in the + * {@link ASF_Object_TimecodeIndexParameters Timecode Index Parameters Object} + * must have timecode Payload Extension Systems associated with them in the + * {@link ASF_Object_ExtendedStreamProperties Extended Stream Properties + * Object}. This object shall be present in the {@link ASF_Object_Header Header + * Object} if there is a {@link ASF_Object_TimecodeIndex Timecode Index Object} + * present in the file. + * + * An Index Specifier is required for each stream that will be indexed by the + * {@link ASF_Object_TimecodeIndex Timecode Index Object}. These specifiers must + * exactly match those in the {@link ASF_Object_TimecodeIndex Timecode Index + * Object}. + * + * @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_TimecodeIndexParameters extends ASF_Object +{ + /** @var string */ + private $_indexEntryCountInterval; + + /** @var Array */ + private $_indexSpecifiers = 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->_indexEntryCountInterval = $this->_reader->readUInt32LE(); + $indexSpecifiersCount = $this->_reader->readUInt16LE(); + for ($i = 0; $i < $indexSpecifiersCount; $i++) { + $this->_indexSpecifiers[] = array + ("streamNumber" => $this->_reader->readUInt16LE(), + "indexType" => $this->_reader->readUInt16LE()); + } + } + + /** + * Returns the interval between each index entry by the number of media + * objects. This value cannot be 0. + * + * @return integer + */ + public function getIndexEntryCountInterval() + { + return $this->_indexEntryCountInterval; + } + + /** + * Returns an array of index entries. Each entry consists of the following + * keys. + * + * o streamNumber -- Specifies the stream number that the Index Specifiers + * refer to. Valid values are between 1 and 127. + * + * o indexType -- Specifies the type of index. Values are defined as + * follows: + * 2 = Nearest Past Media Object, + * 3 = Nearest Past Cleanpoint (1 is not a valid value). + * For a video stream, The Nearest Past Media Object indexes point to the + * closest data packet containing an entire video frame or the first + * fragment of a video frame, and the Nearest Past Cleanpoint indexes + * point to the closest data packet containing an entire video frame (or + * first fragment of a video frame) that is a key frame. Nearest Past + * Media Object is the most common value. + * + * @return Array + */ + public function getIndexSpecifiers() { return $this->_indexSpecifiers; } +} |