/**
* Writes the box data.
*
* @param Zend_Io_Writer $writer The writer object.
* @return void
*/
protected function _writeData($writer)
{
if ($this->getSize() >= 8) {
parent::_writeData($writer);
$writer->write(str_repeat("", $this->getSize() - 8));
}
}
/**
* 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 = null, &$options = array())
{
parent::__construct($reader, $options);
$this->setContainer(true);
if ($reader === null) {
return;
}
$this->constructBoxes();
}
/**
* Writes the box data.
*
* @param Zend_Io_Writer $writer The writer object.
* @return void
*/
protected function _writeData($writer)
{
parent::_writeData($writer);
for ($i = 0; $i < count($this->_trackId); $i++) {
$writer->writeUInt32BE($this->_trackId[$i]);
}
}
/**
* Writes the box data.
*
* @param Zend_Io_Writer $writer The writer object.
* @return void
*/
protected function _writeData($writer)
{
parent::_writeData($writer);
$writer->writeUInt16BE($this->getBoxCount());
}
/**
* Writes the box data without the header.
*
* @param Zend_Io_Writer $writer The writer object.
* @return void
*/
protected function _writeData($writer)
{
parent::_writeData($writer);
$writer->writeUInt32BE($this->_version << 24 | $this->_flags);
}
/**
* Writes the box data.
*
* @param Zend_Io_Writer $writer The writer object.
* @return void
*/
protected function _writeData($writer)
{
parent::_writeData($writer);
$writer->write(substr($this->_dataFormat, 0, 4));
}
/**
* Writes the box data.
*
* @param Zend_Io_Writer $writer The writer object.
* @return void
*/
protected function _writeData($writer)
{
parent::_writeData($writer);
$writer->writeString8(substr($this->_majorBrand, 0, 4))->writeUInt32BE($this->_minorVersion);
for ($i = 0; $i < count($this->_compatibleBrands); $i++) {
$writer->writeString8(substr($this->_compatibleBrands[$i], 0, 4));
}
}
/**
* Closes down the reader.
*/
public function __destruct()
{
parent::__destruct();
if ($this->_autoClose === true && $this->_reader !== null) {
$this->_reader->close();
}
}
/**
* Writes the box data.
*
* @param Zend_Io_Writer $writer The writer object.
* @return void
*/
protected function _writeData($writer)
{
parent::_writeData($writer);
$offsetSize = 4;
$lengthSize = 4;
$baseOffsetSize = 4;
$itemCount = count($this->_itemId);
for ($i = 0; $i < $itemCount; $i++) {
if ($this->_itemId[$i]['baseOffset'] > 0xffffffff) {
$baseOffsetSize = 8;
}
for ($j = 0; $j < count($this->_itemId[$i]['extents']); $j++) {
if ($this->_itemId[$i]['extents'][$j]['offset'] > 0xffffffff) {
$offsetSize = 8;
}
if ($this->_itemId[$i]['extents'][$j]['length'] > 0xffffffff) {
$lengthSize = 8;
}
}
}
$writer->writeUInt16BE(($offsetSize & 0xf) << 12 | ($lengthSize & 0xf) << 8 | ($baseOffsetSize & 0xf) << 4)->writeUInt16BE($itemCount);
for ($i = 0; $i < $itemCount; $i++) {
$writer->writeUInt16BE($this->_itemId[$i]['itemId'])->writeUInt16BE($this->_itemId[$i]['dataReferenceIndex']);
if ($baseOffsetSize == 4) {
$writer->writeUInt32BE($this->_itemId[$i]['baseOffset']);
}
if ($baseOffsetSize == 8) {
$writer->writeInt64BE($this->_itemId[$i]['baseOffset']);
}
$writer->writeUInt16BE($extentCount = count($this->_itemId[$i]['extents']));
for ($j = 0; $j < $extentCount; $j++) {
if ($offsetSize == 4) {
$writer->writeUInt32BE($this->_itemId[$i]['extents'][$j]['offset']);
}
if ($offsetSize == 8) {
$writer->writeInt64BE($this->_itemId[$i]['extents'][$j]['offset']);
}
if ($offsetSize == 4) {
$writer->writeUInt32BE($this->_itemId[$i]['extents'][$j]['length']);
}
if ($offsetSize == 8) {
$writer->writeInt64BE($this->_itemId[$i]['extents'][$j]['length']);
}
}
}
}
/**
* 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 = null, &$options = array())
{
parent::__construct(is_string($reader) ? null : $reader, $options);
$this->setContainer(true);
if (is_string($reader)) {
$this->setType($reader);
$this->addBox(new Zend_Media_Iso14496_Box_Data());
} else {
$this->constructBoxes();
}
}
/**
* Removes the given box.
*
* @param Zend_Media_Iso14496_Box $box The box to remove
* @throws Zend_Media_Iso14496_Exception if called on a non-container box
*/
public final function removeBox($box)
{
if (!$this->isContainer()) {
require_once 'Zend/Media/Iso14496/Exception.php';
throw new Zend_Media_Iso14496_Exception('Box not a container');
}
if ($this->hasBox($box->getType())) {
foreach ($this->_boxes[$box->getType()] as $key => $value) {
if ($box === $value) {
unset($this->_boxes[$box->getType()][$key]);
}
}
}
}
