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Diffstat (limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/STSC.php')
| -rw-r--r-- | libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/STSC.php | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/STSC.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/STSC.php deleted file mode 100644 index 22c751d..0000000 --- a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/STSC.php +++ /dev/null @@ -1,110 +0,0 @@ -<?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 ISO 14496 - * @copyright Copyright (c) 2008 The PHP Reader Project Workgroup - * @license http://code.google.com/p/php-reader/wiki/License New BSD License - * @version $Id: STSC.php 92 2008-05-10 13:43:14Z svollbehr $ - */ - -/**#@+ @ignore */ -require_once("ISO14496/Box/Full.php"); -/**#@-*/ - -/** - * Samples within the media data are grouped into chunks. Chunks can be of - * different sizes, and the samples within a chunk can have different sizes. - * The <i>Sample To Chunk Box</i> table can be used to find the chunk that - * contains a sample, its position, and the associated sample description. - * - * The table is compactly coded. Each entry gives the index of the first chunk - * of a run of chunks with the same characteristics. By subtracting one entry - * here from the previous one, you can compute how many chunks are in this run. - * You can convert this to a sample count by multiplying by the appropriate - * samplesPerChunk. - * - * @package php-reader - * @subpackage ISO 14496 - * @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: 92 $ - */ -final class ISO14496_Box_STSC extends ISO14496_Box_Full -{ - /** @var Array */ - private $_sampleToChunkTable = array(); - - /** - * Constructs the class with given parameters and reads box related data from - * the ISO Base Media file. - * - * @param Reader $reader The reader object. - */ - public function __construct($reader, &$options = array()) - { - parent::__construct($reader, $options); - - $entryCount = $this->_reader->readUInt32BE(); - $data = $this->_reader->read - ($this->getOffset() + $this->getSize() - $this->_reader->getOffset()); - for ($i = 1; $i <= $entryCount; $i++) - $this->_sampleToChunkTable[$i] = array - ("firstChunk" => - Transform::fromUInt32BE(substr($data, ($i - 1) * 12, 4)), - "samplesPerChunk" => - Transform::fromUInt32BE(substr($data, $i * 12 - 8, 4)), - "sampleDescriptionIndex" => - Transform::fromUInt32BE(substr($data, $i * 12 - 4, 4))); - } - - /** - * Returns an array of values. Each entry is an array containing the following - * keys. - * o firstChunk -- an integer that gives the index of the first chunk in - * this run of chunks that share the same samplesPerChunk and - * sampleDescriptionIndex; the index of the first chunk in a track has the - * value 1 (the firstChunk field in the first record of this box has the - * value 1, identifying that the first sample maps to the first chunk). - * o samplesPerChunk is an integer that gives the number of samples in each - * of these chunks. - * o sampleDescriptionIndex is an integer that gives the index of the sample - * entry that describes the samples in this chunk. The index ranges from 1 - * to the number of sample entries in the {@link ISO14496_Box_STSD Sample - * Description Box}. - * - * @return Array - */ - public function getSampleToChunkTable() - { - return $this->_sampleToChunkTable; - } -} |