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Add ISO 14496 boxes

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git-svn-id: http://php-reader.googlecode.com/svn/branches/zend@160 51a70ab9-7547-0410-9469-37e369ee0574
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svollbehr
2010-02-18 14:39:53 +00:00
parent c620ac8325
commit 915200d4c1
14 changed files with 2064 additions and 0 deletions
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src/Zend/Media/Iso14496/Box/Mdhd.php Normal file
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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* 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.
*
* @category Zend
* @package Zend_Media
* @subpackage ISO 14496
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**#@+ @ignore */
require_once 'Zend/Media/Iso14496/FullBox.php';
/**#@-*/
/**
* The <i>Media Header Box</i> declares overall information that is
* media-independent, and relevant to characteristics of the media in a track.
*
* @category Zend
* @package Zend_Media
* @subpackage ISO 14496
* @author Sven Vollbehr <sven@vollbehr.eu>
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
final class Zend_Media_Iso14496_Box_Mdhd extends Zend_Media_Iso14496_FullBox
{
/** @var integer */
private $_creationTime;
/** @var integer */
private $_modificationTime;
/** @var integer */
private $_timescale;
/** @var integer */
private $_duration;
/** @var string */
private $_language = 'und';
/**
* Constructs the class with given parameters and reads box related data
* from the ISO Base Media file.
*
* @param Zend_Io_Reader $reader The reader object.
* @param Array $options The options array.
*/
public function __construct($reader, &$options = array())
{
parent::__construct($reader, $options);
if ($this->getVersion() == 1) {
$this->_creationTime = $this->_reader->readInt64BE();
$this->_modificationTime = $this->_reader->readInt64BE();
$this->_timescale = $this->_reader->readUInt32BE();
$this->_duration = $this->_reader->readInt64BE();
} else {
$this->_creationTime = $this->_reader->readUInt32BE();
$this->_modificationTime = $this->_reader->readUInt32BE();
$this->_timescale = $this->_reader->readUInt32BE();
$this->_duration = $this->_reader->readUInt32BE();
}
$this->_language = chr
(((($tmp = $this->_reader->readUInt16BE()) >> 10) & 0x1f) + 0x60) .
chr((($tmp >> 5) & 0x1f) + 0x60) . chr(($tmp & 0x1f) + 0x60);
}
/**
* Returns the creation time of the media in this track, in seconds since
* midnight, Jan. 1, 1904, in UTC time.
*
* @return integer
*/
public function getCreationTime()
{
return $this->_creationTime;
}
/**
* Sets the creation time of the media in this track, in seconds since
* midnight, Jan. 1, 1904, in UTC time.
*
* @param integer $creationTime The creation time.
*/
public function setCreationTime($creationTime)
{
$this->_creationTime = $creationTime;
}
/**
* Returns the most recent time the media in this track was modified in
* seconds since midnight, Jan. 1, 1904, in UTC time.
*
* @return integer
*/
public function getModificationTime()
{
return $this->_modificationTime;
}
/**
* Sets the most recent time the media in this track was modified in
* seconds since midnight, Jan. 1, 1904, in UTC time.
*
* @param integer $modificationTime The modification time.
*/
public function setModificationTime($modificationTime)
{
$this->_modificationTime = $modificationTime;
}
/**
* Returns the time-scale for this media. This is the number of time units
* that pass in one second. For example, a time coordinate system that
* measures time in sixtieths of a second has a time scale of 60.
*
* @return integer
*/
public function getTimescale()
{
return $this->_timescale;
}
/**
* Sets the time-scale for this media. This is the number of time units
* that pass in one second. For example, a time coordinate system that
* measures time in sixtieths of a second has a time scale of 60.
*
* @param integer $timescale The time-scale.
*/
public function setTimescale($timescale)
{
$this->_timescale = $timescale;
}
/**
* Returns the duration of this media (in the scale of the timescale).
*
* @return integer
*/
public function getDuration()
{
return $this->_duration;
}
/**
* Sets the duration of this media (in the scale of the timescale).
*
* @param integer $duration The duration.
*/
public function setDuration($duration)
{
$this->_duration = $duration;
}
/**
* Returns the three byte language code to describe the language of this
* media, according to {@link http://www.loc.gov/standards/iso639-2/
* ISO 639-2/T}.
*
* @return string
*/
public function getLanguage()
{
return $this->_language;
}
/**
* Sets the three byte language code to describe the language of this
* media, according to {@link http://www.loc.gov/standards/iso639-2/
* ISO 639-2/T}.
*
* @param string $language The language code.
*/
public function setLanguage($language)
{
$this->_language = $language;
}
/**
* Returns the box heap size in bytes.
*
* @return integer
*/
public function getHeapSize()
{
return parent::getHeapSize() +
($this->getVersion() == 1 ? 28 : 16) + 4;
}
/**
* Writes the box data.
*
* @param Zend_Io_Writer $writer The writer object.
* @return void
*/
protected function _writeData($writer)
{
parent::_writeData($writer);
if ($this->getVersion() == 1) {
$writer->writeInt64BE($this->_creationTime)
->writeInt64BE($this->_modificationTime)
->writeUInt32BE($this->_timescale)
->writeInt64BE($this->_duration);
} else {
$writer->writeUInt32BE($this->_creationTime)
->writeUInt32BE($this->_modificationTime)
->writeUInt32BE($this->_timescale)
->writeUInt32BE($this->_duration);
}
$writer->writeUInt16BE((ord($this->_language[0]) - 0x60) << 10 |
(ord($this->_language[1])- 0x60) << 5 |
(ord($this->_language[2])- 0x60))
->write(str_pad('', 2, "\0"));
}
}