/**
* Constructor
*
* @author Tommy Lacroix <*****@*****.**>
* @param int $totalSize
* @param int $boxType
* @param file|string $f
* @param MP4Info_Box $parent
* @return MP4Info_Box_ilst_sub
* @access public
* @throws MP4Info_Exception
*/
public function __construct($totalSize, $boxType, $data, $parent)
{
if (!$parent instanceof MP4Info_Box_ilst) {
throw new MP4Info_Exception('This box isn\'t "islt" child', MP4Info_Exception::CODE_INCOMPATIBLE, $boxType);
}
// Call ancestor
parent::__construct($totalSize, $boxType, $data, $parent);
// Get data
$data = $this->data;
// Unpack
$type = self::getType($this->boxType);
$ar = unpack('Nlen', $data);
if (substr($data, 4, 4) == 'data') {
$info = substr($data, 8, $ar['len'] - 8);
switch ($type) {
case 'uint8':
$info = reset(unpack('C', $info));
break;
case 'uint16':
$info = reset(unpack('n', $info));
break;
case 'uint32':
$info = reset(unpack('N', $info));
break;
case 'text':
break;
}
$this->data = $info;
$parent->setKeyValue($this->boxTypeStr, $info);
} else {
throw new MP4Info_Exception('Didn\'t get the "data" code');
}
}
/**
* Constructor
*
* @author Tommy Lacroix <*****@*****.**>
* @param int $totalSize
* @param int $boxType
* @param file|string $data
* @param MP4Info_Box $parent
* @return MP4Info_Box_Container
* @access public
* @throws MP4Info_Exception
*/
public function __construct($totalSize, $boxType, $data, $parent)
{
if (!self::isCompatible($boxType, $parent)) {
throw new MP4Info_Exception('This box isn\'t a container', MP4Info_Exception::CODE_INCOMPATIBLE, $boxType);
}
// Call ancestor
parent::__construct($totalSize, $boxType, false, $parent);
// Unpack
if (is_string($data)) {
while ($data != '') {
try {
$box = MP4Info_Box::fromString($data, $this);
if (!$box instanceof MP4Info_Box) {
break;
}
} catch (Exception $e) {
break;
}
}
} else {
do {
try {
$box = MP4Info_Box::fromStream($data, $this);
if (!$box instanceof MP4Info_Box) {
break;
}
} catch (Exception $e) {
break;
}
} while ($box !== false);
}
}
/**
* Constructor
*
* @author Tommy Lacroix <*****@*****.**>
* @param int $totalSize
* @param int $boxType
* @param file|string $data
* @param MP4Info_Box $parent
* @return MP4Info_Box_uuid
* @access public
* @throws MP4Info_Exception
*/
public function __construct($totalSize, $boxType, $data, $parent)
{
if (!self::isCompatible($boxType, $parent)) {
throw new Exception('This box isn\'t "uuid"');
}
// Call ancestor
parent::__construct($totalSize, $boxType, '', $parent);
// Unpack
$data = self::getDataFrom3rd($data, $totalSize);
$this->uuid = bin2hex(substr($data, 0, 16));
$this->xmp = substr($data, 16);
}
/**
* Get information from MP4 file
*
* @author Tommy Lacroix <*****@*****.**>
* @param string $file
* @return array
* @access public
* @static
*/
public static function getInfo($file)
{
// Open file
$f = fopen($file, 'rb');
if (!$f) {
throw new Exception('Cannot open file: ' . $file);
}
// Get all boxes
try {
while ($box = MP4Info_Box::fromStream($f)) {
$boxes[] = $box;
}
} catch (Exception $e) {
}
// Close
fclose($f);
// Return info
return self::getInfoFromBoxes($boxes);
}
/**
* Constructor
*
* @author Tommy Lacroix <*****@*****.**>
* @param int $totalSize
* @param int $boxType
* @param file|string $data
* @param MP4Info_Box $parent
* @return MP4Info_Box_ftyp
* @access public
* @throws MP4Info_Exception
*/
public function __construct($totalSize, $boxType, $data, $parent)
{
if (!self::isCompatible($boxType, $parent)) {
throw new MP4Info_Exception('This box isn\'t "ftyp"', MP4Info_Exception::CODE_INCOMPATIBLE, $boxType);
}
// Call ancestor
parent::__construct($totalSize, $boxType, false, $parent);
// Get data
$data = self::getDataFrom3rd($data, $totalSize);
// Unpack
$ar = unpack('NmajorBrand/NminorVersion/N*compatibleBrands', $data);
$compatibleBrands = array();
foreach ($ar as $k => $v) {
if (substr($k, 0, 16) == 'compatibleBrands') {
$compatibleBrands[] = $v;
}
}
// Save properties
$this->majorBrand = $ar['majorBrand'];
$this->minorVersion = $ar['minorVersion'];
$this->compatibleBrands = $compatibleBrands;
}
/**
* Constructor
*
* @author Tommy Lacroix <*****@*****.**>
* @param int $totalSize
* @param int $boxType
* @param file|string $data
* @param MP4Info_Box $parent
* @return MP4Info_Box_hdlr
* @access public
* @throws MP4Info_Exception
*/
public function __construct($totalSize, $boxType, $data, $parent)
{
if (!self::isCompatible($boxType, $parent)) {
throw new Exception('This box isn\'t "iods"');
}
// Get timezone
if (self::$timezone === false) {
self::$timezone = date('Z');
}
// Call ancestor
parent::__construct($totalSize, $boxType, '', $parent);
// Get data
$data = self::getDataFrom3rd($data, $totalSize);
// Unpack
$ar = unpack('Cversion/C3flags', $data);
$ar2 = unpack('CiodTag/Nlength/nODID/CODProfileLevel/CsceneProfileLevel/CaudioProfileLevel/CvideoProfileLevel/CgraphicsProfileLevel', substr($data, 4));
// Save
$this->version = $ar['version'];
$this->flags = $ar['flags1'] * 65536 + $ar['flags1'] * 256 + $ar['flags1'] * 1;
print_r($ar2);
die;
}
/**
* Constructor
*
* @author Tommy Lacroix <*****@*****.**>
* @param int $totalSize
* @param int $boxType
* @param file|string $data
* @param MP4Info_Box $parent
* @return MP4Info_Box_hdlr
* @access public
* @throws MP4Info_Exception
*/
public function __construct($totalSize, $boxType, $data, $parent)
{
if (!self::isCompatible($boxType, $parent)) {
throw new Exception('This box isn\'t "ftyp"');
}
// Get timezone
if (self::$timezone === false) {
self::$timezone = date('Z');
}
// Call ancestor
parent::__construct($totalSize, $boxType, '', $parent);
// Get data
$data = self::getDataFrom3rd($data, $totalSize);
// Unpack
$ar = unpack('Cversion/C3flags', $data);
if ($ar['version'] == 0) {
// 32 bit
$ar2 = unpack('Nctime/Nmtime/NtimeScale/Nduration', substr($data, 4));
$len = 6 * 4;
} else {
if ($ar['version'] == 1) {
// 64 bit
$ar2 = unpack('N2ctime/N2mtime/NtimeScale/N2duration', substr($data, 4));
$len = 9 * 4;
} else {
throw new Exception('Unhandled version: ' . $ar['version']);
}
}
// Save
$this->version = $ar['version'];
$this->flags = $ar['flags1'] * 65536 + $ar['flags1'] * 256 + $ar['flags1'] * 1;
$this->ctime = date('r', (isset($ar2['ctime']) ? $ar2['ctime'] : $ar2['ctime1']) - 2082826800 - self::$timezone);
$this->mtime = date('r', (isset($ar2['mtime']) ? $ar2['mtime'] : $ar2['mtime1']) - 2082826800 - self::$timezone);
$this->timeScale = $ar2['timeScale'];
$this->duration = isset($ar2['duration']) ? $ar2['duration'] : $ar2['duration1'];
$this->handlerType = substr($data, $len, 4);
$this->name = substr($data, $len + 8, -1);
}
/**
* Constructor
*
* @author Tommy Lacroix <*****@*****.**>
* @param int $totalSize
* @param int $boxType
* @param file|string $data
* @param MP4Info_Box $parent
* @return MP4Info_Box_stsd
* @access public
* @throws MP4Info_Exception
*/
public function __construct($totalSize, $boxType, $data, $parent)
{
if (!self::isCompatible($boxType, $parent)) {
throw new Exception('This box isn\'t "stsd"');
}
// Call ancestor
parent::__construct($totalSize, $boxType, '', $parent);
// Get data
$data = self::getDataFrom3rd($data, $totalSize);
// Unpack
$ar = unpack('Cversion/C3flags/Ncount', $data);
$this->version = $ar['version'];
$this->flags = $ar['flags1'] * 65536 + $ar['flags1'] * 256 + $ar['flags1'] * 1;
$this->count = $ar['count'];
// Unpack SAMPLEDESCRIPTION
$desc = substr($data, 8);
for ($i = 0; $i < $this->count; $i++) {
$ar = unpack('Nlen', $desc);
$type = substr($desc, 4, 4);
$info = substr($desc, 8, $ar['len'] - 8);
$desc = substr($desc, $ar['len']);
$this->values[$type] = $info;
}
}
/**
* Constructor
*
* @author Tommy Lacroix <*****@*****.**>
* @param int $totalSize
* @param int $boxType
* @param file|string $data
* @param MP4Info_Box $parent
* @return MP4Info_Box_mvhd
* @access public
* @throws MP4Info_Exception
*/
public function __construct($totalSize, $boxType, $data, $parent)
{
if (!self::isCompatible($boxType)) {
throw new Exception('This box isn\'t "mvhd"');
}
// Get timezone
if (self::$timezone === false) {
self::$timezone = date('Z');
}
// Call ancestor's constructor
parent::__construct($totalSize, $boxType, '', $parent);
// Unpack
$ar = unpack('Cversion/C3flags', $data);
if ($ar['version'] == 0) {
// 32 bit
$ar2 = unpack('Nctime/Nmtime/NtimeScale/Nduration/Nrate/nvolume/ndummy/N2dummy2/N9matrix/N3dummy3/NnextTrack', substr($data, 4));
} else {
if ($ar['version'] == 1) {
// 64 bit
$ar2 = unpack('N2ctime/N2mtime/NtimeScale/N2duration/Nrate/nvolume/ndummy/N2dummy2/N9matrix/N3dummy3/NnextTrack', substr($data, 4));
} else {
throw new Exception('Unhandled version: ' . $ar['version']);
}
}
// Save
$this->version = $ar['version'];
$this->flags = $ar['flags1'] * 65536 + $ar['flags1'] * 256 + $ar['flags1'] * 1;
$this->ctime = date('r', (isset($ar2['ctime']) ? $ar2['ctime'] : $ar2['ctime1']) - 2082826800 - self::$timezone);
$this->mtime = date('r', (isset($ar2['mtime']) ? $ar2['mtime'] : $ar2['mtime1']) - 2082826800 - self::$timezone);
$this->timeScale = $ar2['timeScale'];
$this->duration = isset($ar2['duration']) ? $ar2['duration'] : $ar2['duration1'];
$this->rate = MP4Info_Helper::fromFixed16($ar2['rate']);
$this->volume = MP4Info_Helper::fromFixed8($ar2['volume']);
}
/**
* Constructor
*
* @author Tommy Lacroix <*****@*****.**>
* @param int $totalSize
* @param int $boxType
* @param file|string $data
* @param MP4Info_Box $parent
* @return MP4Info_Box_tkhd
* @access public
* @throws MP4Info_Exception
*/
public function __construct($totalSize, $boxType, $data, $parent = false)
{
if (!self::isCompatible($boxType, $parent)) {
throw new Exception('This box isn\'t "tkhd"');
}
// Get timezone
if (self::$timezone === false) {
self::$timezone = date('Z');
}
// Call ancestor's constructor
parent::__construct($totalSize, $boxType, '', $parent);
// Get data
$data = self::getDataFrom3rd($data, $totalSize);
// Unpack
$ar = unpack('Cversion/C3flags', $data);
if ($ar['version'] == 0) {
// 32 bit
$ar2 = unpack('Nctime/Nmtime/NtrackId/Ndummy/Nduration/N2dummy1/nlayer/naltGroup/nvolume/ndummy2/N9matrix/Nwidth/Nheight', substr($data, 4));
} else {
if ($ar['version'] == 1) {
// 64 bit
$ar2 = unpack('N2ctime/N2mtime/NtrackId/Ndummy/N2duration/N2dummy1/nlayer/naltGroup/nvolume/ndummy2/N9matrix/Nwidth/Nheight', substr($data, 4));
} else {
throw new Exception('Unhandled version: ' . $ar['version']);
}
}
// Save
$this->version = $ar['version'];
$this->flags = $ar['flags1'] * 65536 + $ar['flags1'] * 256 + $ar['flags1'] * 1;
$this->ctime = date('r', (isset($ar2['ctime']) ? $ar2['ctime'] : $ar2['ctime1']) - 2082826800 - self::$timezone);
$this->mtime = date('r', (isset($ar2['mtime']) ? $ar2['mtime'] : $ar2['mtime1']) - 2082826800 - self::$timezone);
$this->trackId = $ar2['trackId'];
$this->duration = isset($ar2['duration']) ? $ar2['duration'] : $ar2['duration1'];
$this->layer = $ar2['layer'] > 32767 ? $ar2['layer'] - 65536 : $ar2['layer'];
$this->volume = MP4Info_Helper::fromFixed8($ar2['volume']);
$this->width = MP4Info_Helper::fromFixed16($ar2['width']);
$this->height = MP4Info_Helper::fromFixed16($ar2['height']);
}
/**
* Create a box from file stream
*
* @author Tommy Lacroix <*****@*****.**>
* @param file $f
* @param MP4Info_Box|false $parent
* @return MP4Info_Box
* @access public
* @static
*/
public static function fromStream($f, $parent = false)
{
// Get box header
$buf = fread($f, 8);
if (strlen($buf) < 8) {
return false;
}
$ar = unpack('NtotalSize/NboxType', $buf);
if ($ar['totalSize'] == 1) {
// Size is bigger than 4GB :-O die
// Skip ExtendedSize(UI64) and try to decode anyway
$buf = fread($f, 8);
$ar2 = unpack('N2extSize', $buf);
if ($ar2['extSize1'] > 0) {
throw new Exception('Extended size not supported');
} else {
$ar['totalSize'] = $ar2['extSize2'];
}
}
// Check if we need to skip
if (self::skipBoxType($ar['boxType'])) {
//print '+++ Skipping box '.pack('N',$ar['boxType']).'<br>';
fseek($f, $ar['totalSize'] - 8, SEEK_CUR);
return self::fromStream($f, $parent);
}
// Check if box is a container, and skip it if so
if (self::ignoreBoxType($ar['boxType'])) {
//print '+++ Ignoring box '.pack('N',$ar['boxType']).' of size '.$ar['totalSize'].'<br>';
return self::fromStream($f, $parent);
}
// Get box content
if ($ar['totalSize'] > 0) {
if ($ar['totalSize'] < 256 * 1024) {
$data = fread($f, $ar['totalSize'] - 8);
} else {
$data = $f;
}
} else {
$data = '';
}
// Create box object
$box = MP4Info_Box::factory($ar['totalSize'], $ar['boxType'], $data, $parent);
//print 'Got box from stream of type 0x'.dechex($ar['boxType']).'('.pack('N',$ar['boxType']).') and size '.$ar['totalSize'].' bytes: '.$box->toString().'<br>';
return $box;
}
