public function __construct($totalSize, $boxType, $data, XenGallery_VideoInfo_Preparer $preparer, $parent)
{
parent::__construct($totalSize, $boxType, false, $preparer, $parent);
if (is_string($data)) {
while ($data != '') {
try {
$box = $this->preparer->fromString($data, $this);
if (!$box instanceof XenGallery_VideoInfo_Box_Abstract) {
break;
}
} catch (Exception $e) {
break;
}
}
} else {
do {
try {
$box = $this->preparer->fromStream($data, $this);
if (!$box instanceof XenGallery_VideoInfo_Box_Abstract) {
break;
}
} catch (Exception $e) {
break;
}
} while ($box !== false);
}
}
public function __construct($totalSize, $boxType, $data, XenGallery_VideoInfo_Preparer $preparer, $parent)
{
parent::__construct($totalSize, $boxType, '', $preparer, $parent);
$data = $this->getDataFromFileOrString($data, $totalSize);
$ar = unpack('Cversion/C3flags/Ncount', $data);
$desc = substr($data, 8);
for ($i = 0; $i < $ar['count']; $i++) {
$details = unpack('Nlen', $desc);
$type = substr($desc, 4, 4);
$info = substr($desc, 8, $details['len'] - 8);
$desc = substr($desc, $details['len']);
$this->values[$type] = $info;
}
}
/**
* Creates a box object from a string.
*
* @param $data
* @param bool $parent
*
* @return XenGallery_VideoInfo_Box_Abstract
*/
public function fromString(&$data, $parent = false)
{
if (strlen($data) < 8) {
throw new XenForo_Exception('Not enough data, need at least 8 bytes!');
}
$ar = unpack('NtotalSize/NboxType', $data);
if ($ar['totalSize'] == 1) {
$ar2 = unpack('N2extSize', substr($data, 8));
if ($ar2['extSize1'] > 0) {
throw new XenForo_Exception('Extended size not supported');
} else {
$ar['totalSize'] = $ar2['extSize2'];
}
$skip = 8;
} else {
$skip = 0;
}
if ($this->_isBoxSkippable($ar['boxType'])) {
$data = substr($data, $ar['totalSize']);
return $this->fromString($data, $parent);
}
$box = XenGallery_VideoInfo_Box_Abstract::create($ar['totalSize'], $ar['boxType'], substr($data, 8 + $skip), $this, $parent);
if ($box) {
$data = substr($data, $box->getTotalSize());
}
return $box;
}
