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Diffstat (limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/SUBS.php')
| -rw-r--r-- | libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/SUBS.php | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/SUBS.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/SUBS.php deleted file mode 100644 index 83ae8ac..0000000 --- a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/SUBS.php +++ /dev/null @@ -1,138 +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: SUBS.php 92 2008-05-10 13:43:14Z svollbehr $ - */ - -/**#@+ @ignore */ -require_once("ISO14496/Box/Full.php"); -/**#@-*/ - -/** - * The <i>Sub-Sample Information Box</i> is designed to contain sub-sample - * information. - * - * A sub-sample is a contiguous range of bytes of a sample. The specific - * definition of a sub-sample shall be supplied for a given coding system (e.g. - * for ISO/IEC 14496-10, Advanced Video Coding). In the absence of such a - * specific definition, this box shall not be applied to samples using that - * coding system. - * - * If subsample_count is 0 for any entry, then those samples have no subsample - * information and no array follows. The table is sparsely coded; the table - * identifies which samples have sub-sample structure by recording the - * difference in sample-number between each entry. The first entry in the table - * records the sample number of the first sample having sub-sample information. - * - * Note: It is possible to combine subsamplePriority and discardable such that - * when subsamplePriority is smaller than a certain value, discardable is set to - * 1. However, since different systems may use different scales of priority - * values, to separate them is safe to have a clean solution for discardable - * sub-samples. - * - * @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_SUBS extends ISO14496_Box_Full -{ - /** @var Array */ - private $_subSampleTable = 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 = $this->_reader->readUInt32BE(); - for ($i = 0; $i < $entryCount; $i++) { - $entry = array(); - $entry["sampleDelta"] = $this->_reader->readUInt32BE(); - $entry["subsamples"] = array(); - if (($subsampleCount = $this->_reader->readUInt16BE()) > 0) { - for ($j = 0; $j < $subsampleCount; $j++) { - $subsample = array(); - if ($this->getVersion() == 1) - $subsample["subsampleSize"] = $this->_reader->readUInt32BE(); - else - $subsample["subsampleSize"] = $this->_reader->readUInt16BE(); - $subsample["subsamplePriority"] = $this->_reader->readInt8(); - $subsample["discardable"] = $this->_reader->readInt8(); - $this->_reader->skip(4); - $entry["subsamples"][] = $subsample; - } - $this->_subSampleTable[] = $entry; - } - } - } - - /** - * Returns an array of values. Each entry is an array containing the following - * keys. - * o sampleDelta -- an integer that specifies the sample number of the - * sample having sub-sample structure. It is coded as the difference - * between the desired sample number, and the sample number indicated in - * the previous entry. If the current entry is the first entry, the value - * indicates the sample number of the first sample having sub-sample - * information, that is, the value is the difference between the sample - * number and zero (0). - * o subsamples -- an array of subsample arrays, each containing the - * following keys. - * o subsampleSize -- an integer that specifies the size, in bytes, of - * the current sub-sample. - * o subsamplePriority -- an integer specifying the degradation priority - * for each sub-sample. Higher values of subsamplePriority, indicate - * sub-samples which are important to, and have a greater impact on, - * the decoded quality. - * o discardable -- equal to 0 means that the sub-sample is required to - * decode the current sample, while equal to 1 means the sub-sample is - * not required to decode the current sample but may be used for - * enhancements, e.g., the sub-sample consists of supplemental - * enhancement information (SEI) messages. - * - * @return Array - */ - public function getSubSampleTable() - { - return $this->_subSampleTable; - } -} |