Docs For Class ISO14496_Box

Description

The 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.

author: Sven Vollbehr <svollbehr@gmail.com>
version: $Rev: 92 $
copyright: Copyright (c) 2008 The PHP Reader Project Workgroup
license: New BSD License

Located in /ISO14496/Box/PDIN.php (line 60)

ISO14496_Box
   |
   --ISO14496_Box_Full
      |
      --ISO14496_Box_PDIN

Method Summary

ISO14496_Box_PDIN __construct (Reader $reader, [ &$options = array()])

Array getProgressiveDownloadInfo ()

Variables

Inherited Variables

Inherited from ISO14496_Box_Full

ISO14496_Box_Full::$_flags
ISO14496_Box_Full::$_version

Inherited from ISO14496_Box

ISO14496_Box::$_reader

Methods

Constructor __construct (line 71)

Constructs the class with given parameters and reads box related data from the ISO Base Media file.

access: public

ISO14496_Box_PDIN __construct (Reader $reader, [ &$options = array()])

Reader $reader: The reader object.
&$options

Redefinition of:

ISO14496_Box_Full::__construct(): Constructs the class with given parameters and reads box related data from the ISO Base Media file.

getProgressiveDownloadInfo (line 93)

Returns the progressive download information array. The array consists of items having two keys.

rate -- the download rate expressed in bytes/second
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.

access: public

Array getProgressiveDownloadInfo ()

Inherited Methods

Inherited From ISO14496_Box_Full

ISO14496_Box_Full::__construct()
ISO14496_Box_Full::getFlags()
ISO14496_Box_Full::getVersion()
ISO14496_Box_Full::hasFlag()
ISO14496_Box_Full::setFlags()
ISO14496_Box_Full::setVersion()
ISO14496_Box_Full::__toString()

Inherited From ISO14496_Box

ISO14496_Box::__construct()
ISO14496_Box::addBox()
ISO14496_Box::constructBoxes()
ISO14496_Box::getBoxes()
ISO14496_Box::getBoxesByIdentifier()
ISO14496_Box::getContainer()
ISO14496_Box::getOffset()
ISO14496_Box::getOption()
ISO14496_Box::getOptions()
ISO14496_Box::getParent()
ISO14496_Box::getSize()
ISO14496_Box::getType()
ISO14496_Box::hasBox()
ISO14496_Box::isContainer()
ISO14496_Box::setContainer()
ISO14496_Box::setOffset()
ISO14496_Box::setOption()
ISO14496_Box::setOptions()
ISO14496_Box::setParent()
ISO14496_Box::setSize()
ISO14496_Box::setType()
ISO14496_Box::__get()
ISO14496_Box::__isset()
ISO14496_Box::__set()
ISO14496_Box::__toString()
ISO14496_Box::__unset()

Class ISO14496_Box_PDIN

Inherited Variables

Inherited Methods