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Diffstat (limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/FTYP.php')
| -rw-r--r-- | libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/FTYP.php | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/FTYP.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/FTYP.php new file mode 100644 index 0000000..f060091 --- /dev/null +++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/FTYP.php @@ -0,0 +1,142 @@ +<?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: FTYP.php 92 2008-05-10 13:43:14Z svollbehr $ + */ + +/**#@+ @ignore */ +require_once("ISO14496/Box.php"); +/**#@-*/ + +/** + * The <i>File Type Box</i> is placed as early as possible in the file (e.g. + * after any obligatory signature, but before any significant variable-size + * boxes such as a {@link ISO14496_Box_MOOV Movie Box}, {@link ISO14496_Box_MDAT + * Media Data Box}, or {@link ISO14496_Box_FREE Free Space}). It identifies + * which specification is the <i>best use</i> of the file, and a minor version + * of that specification; and also a set of others specifications to which the + * file complies. + * + * The minor version is informative only. It does not appear for + * compatible-brands, and must not be used to determine the conformance of a + * file to a standard. It may allow more precise identification of the major + * specification, for inspection, debugging, or improved decoding. + * + * The type <i>isom</i> (ISO Base Media file) is defined as identifying files + * that conform to the first version of the ISO Base Media File Format. More + * specific identifiers can be used to identify precise versions of + * specifications providing more detail. This brand is not be used as the major + * brand; this base file format should be derived into another specification to + * be used. There is therefore no defined normal file extension, or mime type + * assigned to this brand, nor definition of the minor version when <i>isom</i> + * is the major brand. + * + * Files would normally be externally identified (e.g. with a file extension or + * mime type) that identifies the <i>best use</i> (major brand), or the brand + * that the author believes will provide the greatest compatibility. + * + * The brand <i>iso2</i> shall be used to indicate compatibility with the + * amended version of the ISO Base Media File Format; it may be used in addition + * to or instead of the <i>isom</i> brand and the same usage rules apply. If + * used without the brand <i>isom</i> identifying the first version of the + * specification, it indicates that support for some or all of the technology + * introduced by the amended version of the ISO Base Media File Format is + * required. + * + * The brand <i>avc1</i> shall be used to indicate that the file is conformant + * with the <i>AVC Extensions</i>. If used without other brands, this implies + * that support for those extensions is required. The use of <i>avc1</i> as a + * major-brand may be permitted by specifications; in that case, that + * specification defines the file extension and required behavior. + * + * If a Meta-box with an MPEG-7 handler type is used at the file level, then the + * brand <i>mp71</i> is a member of the compatible-brands list in the file-type + * box. + * + * @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_FTYP extends ISO14496_Box +{ + /** @var integer */ + private $_majorBrand; + + /** @var integer */ + private $_minorVersion; + + /** @var integer */ + private $_compatibleBrands = 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); + + $this->_majorBrand = $this->_reader->readString8(4); + $this->_minorVersion = $this->_reader->readUInt32BE(); + while ($this->_reader->getOffset() < $this->getSize()) + if (($brand = $this->_reader->readString8(4)) != "") + $this->_compatibleBrands[] = $brand; + } + + /** + * Returns the major version brand. + * + * @return string + */ + public function getMajorBrand() { return $this->_majorBrand; } + + /** + * Returns the minor version number. + * + * @return integer + */ + public function getMinorVersion() { return $this->_minorVersion; } + + /** + * Returns the array of compatible version brands. + * + * @return Array + */ + public function getCompatibleBrands() { return $this->_compatibleBrands; } +} |