From a435de089da4dd37c3c183f633a49107c720dd95 Mon Sep 17 00:00:00 2001 From: Dalyn Cessac Date: Wed, 16 Mar 2011 11:06:40 -0500 Subject: Added phpvideotoolkit transcoder and updates to the preset ui --- .../php-reader/src/ISO14496/Box/PDIN.php | 97 ++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/PDIN.php (limited to 'libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/PDIN.php') diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/PDIN.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/PDIN.php new file mode 100644 index 0000000..57ed193 --- /dev/null +++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ISO14496/Box/PDIN.php @@ -0,0 +1,97 @@ +Progressive Download Information Box aids the progressive download + * of an ISO file. The box contains pairs of numbers (to the end of the box) + * specifying combinations of effective file download bitrate in units of + * bytes/sec and a suggested initial playback delay in units of milliseconds. + * + * A receiving party can estimate the download rate it is experiencing, and from + * that obtain an upper estimate for a suitable initial delay by linear + * interpolation between pairs, or by extrapolation from the first or last + * entry. + * + * @package php-reader + * @subpackage ISO 14496 + * @author Sven Vollbehr + * @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_PDIN extends ISO14496_Box_Full +{ + /** @var Array */ + private $_progressiveDownloadInfo = 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, $options); + + while ($this->_reader->getOffset() < $this->getOffset() + $this->getSize()) + $this->_progressiveDownloadInfo[] = array + ("rate" => $this->_reader->readUInt32BE(), + "initialDelay" => $this->_reader->readUInt32BE()); + } + + /** + * Returns the progressive download information array. The array consists of + * items having two keys. + * + * o rate -- the download rate expressed in bytes/second + * o initialDelay -- the suggested delay to use when playing the file, + * such that if download continues at the given rate, all data within the + * file will arrive in time for its use and playback should not need to + * stall. + * + * @return Array + */ + public function getProgressiveDownloadInfo() + { + return $this->_progressiveDownloadInfo; + } +} -- cgit v1.2.3