File "module.audio-video.quicktime.php"
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<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org> //
// available at https://github.com/JamesHeinrich/getID3 //
// or https://www.getid3.org //
// or http://getid3.sourceforge.net //
// see readme.txt for more details //
/////////////////////////////////////////////////////////////////
// //
// module.audio-video.quicktime.php //
// module for analyzing Quicktime and MP3-in-MP4 files //
// dependencies: module.audio.mp3.php //
// dependencies: module.tag.id3v2.php //
// ///
/////////////////////////////////////////////////////////////////
if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
exit;
}
getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.mp3.php', __FILE__, true);
getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); // needed for ISO 639-2 language code lookup
class getid3_quicktime extends getid3_handler
{
/** audio-video.quicktime
* return all parsed data from all atoms if true, otherwise just returned parsed metadata
*
* @var bool
*/
public $ReturnAtomData = false;
/** audio-video.quicktime
* return all parsed data from all atoms if true, otherwise just returned parsed metadata
*
* @var bool
*/
public $ParseAllPossibleAtoms = false;
/**
* @return bool
*/
public function Analyze() {
$info = &$this->getid3->info;
$info['fileformat'] = 'quicktime';
$info['quicktime']['hinting'] = false;
$info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present
$this->fseek($info['avdataoffset']);
$offset = 0;
$atomcounter = 0;
$atom_data_read_buffer_size = $info['php_memory_limit'] ? round($info['php_memory_limit'] / 4) : $this->getid3->option_fread_buffer_size * 1024; // set read buffer to 25% of PHP memory limit (if one is specified), otherwise use option_fread_buffer_size [default: 32MB]
while ($offset < $info['avdataend']) {
if (!getid3_lib::intValueSupported($offset)) {
$this->error('Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions');
break;
}
$this->fseek($offset);
$AtomHeader = $this->fread(8);
// https://github.com/JamesHeinrich/getID3/issues/382
// Atom sizes are stored as 32-bit number in most cases, but sometimes (notably for "mdat")
// a 64-bit value is required, in which case the normal 32-bit size field is set to 0x00000001
// and the 64-bit "real" size value is the next 8 bytes.
$atom_size_extended_bytes = 0;
$atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
$atomname = substr($AtomHeader, 4, 4);
if ($atomsize == 1) {
$atom_size_extended_bytes = 8;
$atomsize = getid3_lib::BigEndian2Int($this->fread($atom_size_extended_bytes));
}
if (($offset + $atomsize) > $info['avdataend']) {
$info['quicktime'][$atomname]['name'] = $atomname;
$info['quicktime'][$atomname]['size'] = $atomsize;
$info['quicktime'][$atomname]['offset'] = $offset;
$this->error('Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atomsize.' bytes)');
return false;
}
if ($atomsize == 0) {
// Furthermore, for historical reasons the list of atoms is optionally
// terminated by a 32-bit integer set to 0. If you are writing a program
// to read user data atoms, you should allow for the terminating 0.
$info['quicktime'][$atomname]['name'] = $atomname;
$info['quicktime'][$atomname]['size'] = $atomsize;
$info['quicktime'][$atomname]['offset'] = $offset;
break;
}
$atomHierarchy = array();
$parsedAtomData = $this->QuicktimeParseAtom($atomname, $atomsize, $this->fread(min($atomsize - $atom_size_extended_bytes, $atom_data_read_buffer_size)), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms);
$parsedAtomData['name'] = $atomname;
$parsedAtomData['size'] = $atomsize;
$parsedAtomData['offset'] = $offset;
if ($atom_size_extended_bytes) {
$parsedAtomData['xsize_bytes'] = $atom_size_extended_bytes;
}
if (in_array($atomname, array('uuid'))) {
@$info['quicktime'][$atomname][] = $parsedAtomData;
} else {
$info['quicktime'][$atomname] = $parsedAtomData;
}
$offset += $atomsize;
$atomcounter++;
}
if (!empty($info['avdataend_tmp'])) {
// this value is assigned to a temp value and then erased because
// otherwise any atoms beyond the 'mdat' atom would not get parsed
$info['avdataend'] = $info['avdataend_tmp'];
unset($info['avdataend_tmp']);
}
if (isset($info['quicktime']['comments']['chapters']) && is_array($info['quicktime']['comments']['chapters']) && (count($info['quicktime']['comments']['chapters']) > 0)) {
$durations = $this->quicktime_time_to_sample_table($info);
for ($i = 0; $i < count($info['quicktime']['comments']['chapters']); $i++) {
$bookmark = array();
$bookmark['title'] = $info['quicktime']['comments']['chapters'][$i];
if (isset($durations[$i])) {
$bookmark['duration_sample'] = $durations[$i]['sample_duration'];
if ($i > 0) {
$bookmark['start_sample'] = $info['quicktime']['bookmarks'][($i - 1)]['start_sample'] + $info['quicktime']['bookmarks'][($i - 1)]['duration_sample'];
} else {
$bookmark['start_sample'] = 0;
}
if ($time_scale = $this->quicktime_bookmark_time_scale($info)) {
$bookmark['duration_seconds'] = $bookmark['duration_sample'] / $time_scale;
$bookmark['start_seconds'] = $bookmark['start_sample'] / $time_scale;
}
}
$info['quicktime']['bookmarks'][] = $bookmark;
}
}
if (isset($info['quicktime']['temp_meta_key_names'])) {
unset($info['quicktime']['temp_meta_key_names']);
}
if (!empty($info['quicktime']['comments']['location.ISO6709'])) {
// https://en.wikipedia.org/wiki/ISO_6709
foreach ($info['quicktime']['comments']['location.ISO6709'] as $ISO6709string) {
$ISO6709parsed = array('latitude'=>false, 'longitude'=>false, 'altitude'=>false);
if (preg_match('#^([\\+\\-])([0-9]{2}|[0-9]{4}|[0-9]{6})(\\.[0-9]+)?([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?(([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?)?/$#', $ISO6709string, $matches)) {
// phpcs:ignore PHPCompatibility.Lists.AssignmentOrder.Affected
@list($dummy, $lat_sign, $lat_deg, $lat_deg_dec, $lon_sign, $lon_deg, $lon_deg_dec, $dummy, $alt_sign, $alt_deg, $alt_deg_dec) = $matches;
if (strlen($lat_deg) == 2) { // [+-]DD.D
$ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim($lat_deg, '0').$lat_deg_dec);
} elseif (strlen($lat_deg) == 4) { // [+-]DDMM.M
$ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lat_deg, 0, 2), '0')) + floatval(ltrim(substr($lat_deg, 2, 2), '0').$lat_deg_dec / 60);
} elseif (strlen($lat_deg) == 6) { // [+-]DDMMSS.S
$ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lat_deg, 0, 2), '0')) + floatval(ltrim(substr($lat_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($lat_deg, 4, 2), '0').$lat_deg_dec / 3600);
}
if (strlen($lon_deg) == 3) { // [+-]DDD.D
$ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim($lon_deg, '0').$lon_deg_dec);
} elseif (strlen($lon_deg) == 5) { // [+-]DDDMM.M
$ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lon_deg, 0, 2), '0')) + floatval(ltrim(substr($lon_deg, 2, 2), '0').$lon_deg_dec / 60);
} elseif (strlen($lon_deg) == 7) { // [+-]DDDMMSS.S
$ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lon_deg, 0, 2), '0')) + floatval(ltrim(substr($lon_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($lon_deg, 4, 2), '0').$lon_deg_dec / 3600);
}
if (strlen($alt_deg) == 3) { // [+-]DDD.D
$ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim($alt_deg, '0').$alt_deg_dec);
} elseif (strlen($alt_deg) == 5) { // [+-]DDDMM.M
$ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim(substr($alt_deg, 0, 2), '0')) + floatval(ltrim(substr($alt_deg, 2, 2), '0').$alt_deg_dec / 60);
} elseif (strlen($alt_deg) == 7) { // [+-]DDDMMSS.S
$ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim(substr($alt_deg, 0, 2), '0')) + floatval(ltrim(substr($alt_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($alt_deg, 4, 2), '0').$alt_deg_dec / 3600);
}
foreach (array('latitude', 'longitude', 'altitude') as $key) {
if ($ISO6709parsed[$key] !== false) {
$value = (($lat_sign == '-') ? -1 : 1) * floatval($ISO6709parsed[$key]);
if (!isset($info['quicktime']['comments']['gps_'.$key]) || !in_array($value, $info['quicktime']['comments']['gps_'.$key])) {
@$info['quicktime']['comments']['gps_'.$key][] = (($lat_sign == '-') ? -1 : 1) * floatval($ISO6709parsed[$key]);
}
}
}
}
if ($ISO6709parsed['latitude'] === false) {
$this->warning('location.ISO6709 string not parsed correctly: "'.$ISO6709string.'", please submit as a bug');
}
break;
}
}
if (!isset($info['bitrate']) && !empty($info['playtime_seconds'])) {
$info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
}
if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info['quicktime']['video'])) {
$info['audio']['bitrate'] = $info['bitrate'];
}
if (!empty($info['bitrate']) && !empty($info['audio']['bitrate']) && empty($info['video']['bitrate']) && !empty($info['video']['frame_rate']) && !empty($info['video']['resolution_x']) && ($info['bitrate'] > $info['audio']['bitrate'])) {
$info['video']['bitrate'] = $info['bitrate'] - $info['audio']['bitrate'];
}
if (!empty($info['playtime_seconds']) && !isset($info['video']['frame_rate']) && !empty($info['quicktime']['stts_framecount'])) {
foreach ($info['quicktime']['stts_framecount'] as $key => $samples_count) {
$samples_per_second = $samples_count / $info['playtime_seconds'];
if ($samples_per_second > 240) {
// has to be audio samples
} else {
$info['video']['frame_rate'] = $samples_per_second;
break;
}
}
}
if ($info['audio']['dataformat'] == 'mp4') {
$info['fileformat'] = 'mp4';
if (empty($info['video']['resolution_x'])) {
$info['mime_type'] = 'audio/mp4';
unset($info['video']['dataformat']);
} else {
$info['mime_type'] = 'video/mp4';
}
}
if (!$this->ReturnAtomData) {
unset($info['quicktime']['moov']);
}
if (empty($info['audio']['dataformat']) && !empty($info['quicktime']['audio'])) {
$info['audio']['dataformat'] = 'quicktime';
}
if (empty($info['video']['dataformat']) && !empty($info['quicktime']['video'])) {
$info['video']['dataformat'] = 'quicktime';
}
if (isset($info['video']) && ($info['mime_type'] == 'audio/mp4') && empty($info['video']['resolution_x']) && empty($info['video']['resolution_y'])) {
unset($info['video']);
}
return true;
}
/**
* @param string $atomname
* @param int $atomsize
* @param string $atom_data
* @param int $baseoffset
* @param array $atomHierarchy
* @param bool $ParseAllPossibleAtoms
*
* @return array|false
*/
public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
// http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
// https://code.google.com/p/mp4v2/wiki/iTunesMetadata
$info = &$this->getid3->info;
$atom_parent = end($atomHierarchy); // not array_pop($atomHierarchy); see https://www.getid3.org/phpBB3/viewtopic.php?t=1717
array_push($atomHierarchy, $atomname);
$atom_structure = array();
$atom_structure['hierarchy'] = implode(' ', $atomHierarchy);
$atom_structure['name'] = $atomname;
$atom_structure['size'] = $atomsize;
$atom_structure['offset'] = $baseoffset;
if (substr($atomname, 0, 3) == "\x00\x00\x00") {
// https://github.com/JamesHeinrich/getID3/issues/139
$atomname = getid3_lib::BigEndian2Int($atomname);
$atom_structure['name'] = $atomname;
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
} else {
switch ($atomname) {
case 'moov': // MOVie container atom
case 'moof': // MOvie Fragment box
case 'trak': // TRAcK container atom
case 'traf': // TRAck Fragment box
case 'clip': // CLIPping container atom
case 'matt': // track MATTe container atom
case 'edts': // EDiTS container atom
case 'tref': // Track REFerence container atom
case 'mdia': // MeDIA container atom
case 'minf': // Media INFormation container atom
case 'dinf': // Data INFormation container atom
case 'nmhd': // Null Media HeaDer container atom
case 'udta': // User DaTA container atom
case 'cmov': // Compressed MOVie container atom
case 'rmra': // Reference Movie Record Atom
case 'rmda': // Reference Movie Descriptor Atom
case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR)
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
break;
case 'ilst': // Item LiST container atom
if ($atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms)) {
// some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted
$allnumericnames = true;
foreach ($atom_structure['subatoms'] as $subatomarray) {
if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) {
$allnumericnames = false;
break;
}
}
if ($allnumericnames) {
$newData = array();
foreach ($atom_structure['subatoms'] as $subatomarray) {
foreach ($subatomarray['subatoms'] as $newData_subatomarray) {
unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']);
$newData[$subatomarray['name']] = $newData_subatomarray;
break;
}
}
$atom_structure['data'] = $newData;
unset($atom_structure['subatoms']);
}
}
break;
case 'stbl': // Sample TaBLe container atom
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
$isVideo = false;
$framerate = 0;
$framecount = 0;
foreach ($atom_structure['subatoms'] as $key => $value_array) {
if (isset($value_array['sample_description_table'])) {
foreach ($value_array['sample_description_table'] as $key2 => $value_array2) {
if (isset($value_array2['data_format'])) {
switch ($value_array2['data_format']) {
case 'avc1':
case 'mp4v':
// video data
$isVideo = true;
break;
case 'mp4a':
// audio data
break;
}
}
}
} elseif (isset($value_array['time_to_sample_table'])) {
foreach ($value_array['time_to_sample_table'] as $key2 => $value_array2) {
if (isset($value_array2['sample_count']) && isset($value_array2['sample_duration']) && ($value_array2['sample_duration'] > 0)) {
$framerate = round($info['quicktime']['time_scale'] / $value_array2['sample_duration'], 3);
$framecount = $value_array2['sample_count'];
}
}
}
}
if ($isVideo && $framerate) {
$info['quicktime']['video']['frame_rate'] = $framerate;
$info['video']['frame_rate'] = $info['quicktime']['video']['frame_rate'];
}
if ($isVideo && $framecount) {
$info['quicktime']['video']['frame_count'] = $framecount;
}
break;
case "\xA9".'alb': // ALBum
case "\xA9".'ART': //
case "\xA9".'art': // ARTist
case "\xA9".'aut': //
case "\xA9".'cmt': // CoMmenT
case "\xA9".'com': // COMposer
case "\xA9".'cpy': //
case "\xA9".'day': // content created year
case "\xA9".'dir': //
case "\xA9".'ed1': //
case "\xA9".'ed2': //
case "\xA9".'ed3': //
case "\xA9".'ed4': //
case "\xA9".'ed5': //
case "\xA9".'ed6': //
case "\xA9".'ed7': //
case "\xA9".'ed8': //
case "\xA9".'ed9': //
case "\xA9".'enc': //
case "\xA9".'fmt': //
case "\xA9".'gen': // GENre
case "\xA9".'grp': // GRouPing
case "\xA9".'hst': //
case "\xA9".'inf': //
case "\xA9".'lyr': // LYRics
case "\xA9".'mak': //
case "\xA9".'mod': //
case "\xA9".'nam': // full NAMe
case "\xA9".'ope': //
case "\xA9".'PRD': //
case "\xA9".'prf': //
case "\xA9".'req': //
case "\xA9".'src': //
case "\xA9".'swr': //
case "\xA9".'too': // encoder
case "\xA9".'trk': // TRacK
case "\xA9".'url': //
case "\xA9".'wrn': //
case "\xA9".'wrt': // WRiTer
case '----': // itunes specific
case 'aART': // Album ARTist
case 'akID': // iTunes store account type
case 'apID': // Purchase Account
case 'atID': //
case 'catg': // CaTeGory
case 'cmID': //
case 'cnID': //
case 'covr': // COVeR artwork
case 'cpil': // ComPILation
case 'cprt': // CoPyRighT
case 'desc': // DESCription
case 'disk': // DISK number
case 'egid': // Episode Global ID
case 'geID': //
case 'gnre': // GeNRE
case 'hdvd': // HD ViDeo
case 'keyw': // KEYWord
case 'ldes': // Long DEScription
case 'pcst': // PodCaST
case 'pgap': // GAPless Playback
case 'plID': //
case 'purd': // PURchase Date
case 'purl': // Podcast URL
case 'rati': //
case 'rndu': //
case 'rpdu': //
case 'rtng': // RaTiNG
case 'sfID': // iTunes store country
case 'soaa': // SOrt Album Artist
case 'soal': // SOrt ALbum
case 'soar': // SOrt ARtist
case 'soco': // SOrt COmposer
case 'sonm': // SOrt NaMe
case 'sosn': // SOrt Show Name
case 'stik': //
case 'tmpo': // TeMPO (BPM)
case 'trkn': // TRacK Number
case 'tven': // tvEpisodeID
case 'tves': // TV EpiSode
case 'tvnn': // TV Network Name
case 'tvsh': // TV SHow Name
case 'tvsn': // TV SeasoN
if ($atom_parent == 'udta') {
// User data atom handler
$atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
$atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));
$atom_structure['data'] = substr($atom_data, 4);
$atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
$info['comments']['language'][] = $atom_structure['language'];
}
} else {
// Apple item list box atom handler
$atomoffset = 0;
if (substr($atom_data, 2, 2) == "\x10\xB5") {
// not sure what it means, but observed on iPhone4 data.
// Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data
while ($atomoffset < strlen($atom_data)) {
$boxsmallsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset, 2));
$boxsmalltype = substr($atom_data, $atomoffset + 2, 2);
$boxsmalldata = substr($atom_data, $atomoffset + 4, $boxsmallsize);
if ($boxsmallsize <= 1) {
$this->warning('Invalid QuickTime atom smallbox size "'.$boxsmallsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset));
$atom_structure['data'] = null;
$atomoffset = strlen($atom_data);
break;
}
switch ($boxsmalltype) {
case "\x10\xB5":
$atom_structure['data'] = $boxsmalldata;
break;
default:
$this->warning('Unknown QuickTime smallbox type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxsmalltype).'" ('.trim(getid3_lib::PrintHexBytes($boxsmalltype)).') at offset '.$baseoffset);
$atom_structure['data'] = $atom_data;
break;
}
$atomoffset += (4 + $boxsmallsize);
}
} else {
while ($atomoffset < strlen($atom_data)) {
$boxsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset, 4));
$boxtype = substr($atom_data, $atomoffset + 4, 4);
$boxdata = substr($atom_data, $atomoffset + 8, $boxsize - 8);
if ($boxsize <= 1) {
$this->warning('Invalid QuickTime atom box size "'.$boxsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset));
$atom_structure['data'] = null;
$atomoffset = strlen($atom_data);
break;
}
$atomoffset += $boxsize;
switch ($boxtype) {
case 'mean':
case 'name':
$atom_structure[$boxtype] = substr($boxdata, 4);
break;
case 'data':
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($boxdata, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($boxdata, 1, 3));
switch ($atom_structure['flags_raw']) {
case 0: // data flag
case 21: // tmpo/cpil flag
switch ($atomname) {
case 'cpil':
case 'hdvd':
case 'pcst':
case 'pgap':
// 8-bit integer (boolean)
$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
break;
case 'tmpo':
// 16-bit integer
$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 2));
break;
case 'disk':
case 'trkn':
// binary
$num = getid3_lib::BigEndian2Int(substr($boxdata, 10, 2));
$num_total = getid3_lib::BigEndian2Int(substr($boxdata, 12, 2));
$atom_structure['data'] = empty($num) ? '' : $num;
$atom_structure['data'] .= empty($num_total) ? '' : '/'.$num_total;
break;
case 'gnre':
// enum
$GenreID = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
$atom_structure['data'] = getid3_id3v1::LookupGenreName($GenreID - 1);
break;
case 'rtng':
// 8-bit integer
$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
$atom_structure['data'] = $this->QuicktimeContentRatingLookup($atom_structure[$atomname]);
break;
case 'stik':
// 8-bit integer (enum)
$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
$atom_structure['data'] = $this->QuicktimeSTIKLookup($atom_structure[$atomname]);
break;
case 'sfID':
// 32-bit integer
$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
$atom_structure['data'] = $this->QuicktimeStoreFrontCodeLookup($atom_structure[$atomname]);
break;
case 'egid':
case 'purl':
$atom_structure['data'] = substr($boxdata, 8);
break;
case 'plID':
// 64-bit integer
$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 8));
break;
case 'covr':
$atom_structure['data'] = substr($boxdata, 8);
// not a foolproof check, but better than nothing
if (preg_match('#^\\xFF\\xD8\\xFF#', $atom_structure['data'])) {
$atom_structure['image_mime'] = 'image/jpeg';
} elseif (preg_match('#^\\x89\\x50\\x4E\\x47\\x0D\\x0A\\x1A\\x0A#', $atom_structure['data'])) {
$atom_structure['image_mime'] = 'image/png';
} elseif (preg_match('#^GIF#', $atom_structure['data'])) {
$atom_structure['image_mime'] = 'image/gif';
}
$info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_structure['data'], 'description'=>'cover');
break;
case 'atID':
case 'cnID':
case 'geID':
case 'tves':
case 'tvsn':
default:
// 32-bit integer
$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
}
break;
case 1: // text flag
case 13: // image flag
default:
$atom_structure['data'] = substr($boxdata, 8);
if ($atomname == 'covr') {
if (!empty($atom_structure['data'])) {
$atom_structure['image_mime'] = 'image/unknown'; // provide default MIME type to ensure array keys exist
if (function_exists('getimagesizefromstring') && ($getimagesize = getimagesizefromstring($atom_structure['data'])) && !empty($getimagesize['mime'])) {
$atom_structure['image_mime'] = $getimagesize['mime'];
} else {
// if getimagesizefromstring is not available, or fails for some reason, fall back to simple detection of common image formats
$ImageFormatSignatures = array(
'image/jpeg' => "\xFF\xD8\xFF",
'image/png' => "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A",
'image/gif' => 'GIF',
);
foreach ($ImageFormatSignatures as $mime => $image_format_signature) {
if (substr($atom_structure['data'], 0, strlen($image_format_signature)) == $image_format_signature) {
$atom_structure['image_mime'] = $mime;
break;
}
}
}
$info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_structure['data'], 'description'=>'cover');
} else {
$this->warning('Unknown empty "covr" image at offset '.$baseoffset);
}
}
break;
}
break;
default:
$this->warning('Unknown QuickTime box type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxtype).'" ('.trim(getid3_lib::PrintHexBytes($boxtype)).') at offset '.$baseoffset);
$atom_structure['data'] = $atom_data;
}
}
}
}
$this->CopyToAppropriateCommentsSection($atomname, $atom_structure['data'], $atom_structure['name']);
break;
case 'play': // auto-PLAY atom
$atom_structure['autoplay'] = (bool) getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$info['quicktime']['autoplay'] = $atom_structure['autoplay'];
break;
case 'WLOC': // Window LOCation atom
$atom_structure['location_x'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
$atom_structure['location_y'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));
break;
case 'LOOP': // LOOPing atom
case 'SelO': // play SELection Only atom
case 'AllF': // play ALL Frames atom
$atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data);
break;
case 'name': //
case 'MCPS': // Media Cleaner PRo
case '@PRM': // adobe PReMiere version
case '@PRQ': // adobe PRemiere Quicktime version
$atom_structure['data'] = $atom_data;
break;
case 'cmvd': // Compressed MooV Data atom
// Code by ubergeekØubergeek*tv based on information from
// http://developer.apple.com/quicktime/icefloe/dispatch012.html
$atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
$CompressedFileData = substr($atom_data, 4);
if ($UncompressedHeader = @gzuncompress($CompressedFileData)) {
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($UncompressedHeader, 0, $atomHierarchy, $ParseAllPossibleAtoms);
} else {
$this->warning('Error decompressing compressed MOV atom at offset '.$atom_structure['offset']);
}
break;
case 'dcom': // Data COMpression atom
$atom_structure['compression_id'] = $atom_data;
$atom_structure['compression_text'] = $this->QuicktimeDCOMLookup($atom_data);
break;
case 'rdrf': // Reference movie Data ReFerence atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
$atom_structure['flags']['internal_data'] = (bool) ($atom_structure['flags_raw'] & 0x000001);
$atom_structure['reference_type_name'] = substr($atom_data, 4, 4);
$atom_structure['reference_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4));
switch ($atom_structure['reference_type_name']) {
case 'url ':
$atom_structure['url'] = $this->NoNullString(substr($atom_data, 12));
break;
case 'alis':
$atom_structure['file_alias'] = substr($atom_data, 12);
break;
case 'rsrc':
$atom_structure['resource_alias'] = substr($atom_data, 12);
break;
default:
$atom_structure['data'] = substr($atom_data, 12);
break;
}
break;
case 'rmqu': // Reference Movie QUality atom
$atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);
break;
case 'rmcs': // Reference Movie Cpu Speed atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['cpu_speed_rating'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2));
break;
case 'rmvc': // Reference Movie Version Check atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['gestalt_selector'] = substr($atom_data, 4, 4);
$atom_structure['gestalt_value_mask'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4));
$atom_structure['gestalt_value'] = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
$atom_structure['gestalt_check_type'] = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
break;
case 'rmcd': // Reference Movie Component check atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['component_type'] = substr($atom_data, 4, 4);
$atom_structure['component_subtype'] = substr($atom_data, 8, 4);
$atom_structure['component_manufacturer'] = substr($atom_data, 12, 4);
$atom_structure['component_flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
$atom_structure['component_flags_mask'] = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
$atom_structure['component_min_version'] = getid3_lib::BigEndian2Int(substr($atom_data, 24, 4));
break;
case 'rmdr': // Reference Movie Data Rate atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['data_rate'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;
break;
case 'rmla': // Reference Movie Language Atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2));
$atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
$info['comments']['language'][] = $atom_structure['language'];
}
break;
case 'ptv ': // Print To Video - defines a movie's full screen mode
// http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm
$atom_structure['display_size_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
$atom_structure['reserved_1'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); // hardcoded: 0x0000
$atom_structure['reserved_2'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x0000
$atom_structure['slide_show_flag'] = getid3_lib::BigEndian2Int(substr($atom_data, 6, 1));
$atom_structure['play_on_open_flag'] = getid3_lib::BigEndian2Int(substr($atom_data, 7, 1));
$atom_structure['flags']['play_on_open'] = (bool) $atom_structure['play_on_open_flag'];
$atom_structure['flags']['slide_show'] = (bool) $atom_structure['slide_show_flag'];
$ptv_lookup = array(
0 => 'normal',
1 => 'double',
2 => 'half',
3 => 'full',
4 => 'current'
);
if (isset($ptv_lookup[$atom_structure['display_size_raw']])) {
$atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']];
} else {
$this->warning('unknown "ptv " display constant ('.$atom_structure['display_size_raw'].')');
}
break;
case 'stsd': // Sample Table Sample Description atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
// see: https://github.com/JamesHeinrich/getID3/issues/111
// Some corrupt files have been known to have high bits set in the number_entries field
// This field shouldn't really need to be 32-bits, values stores are likely in the range 1-100000
// Workaround: mask off the upper byte and throw a warning if it's nonzero
if ($atom_structure['number_entries'] > 0x000FFFFF) {
if ($atom_structure['number_entries'] > 0x00FFFFFF) {
$this->warning('"stsd" atom contains improbably large number_entries (0x'.getid3_lib::PrintHexBytes(substr($atom_data, 4, 4), true, false).' = '.$atom_structure['number_entries'].'), probably in error. Ignoring upper byte and interpreting this as 0x'.getid3_lib::PrintHexBytes(substr($atom_data, 5, 3), true, false).' = '.($atom_structure['number_entries'] & 0x00FFFFFF));
$atom_structure['number_entries'] = ($atom_structure['number_entries'] & 0x00FFFFFF);
} else {
$this->warning('"stsd" atom contains improbably large number_entries (0x'.getid3_lib::PrintHexBytes(substr($atom_data, 4, 4), true, false).' = '.$atom_structure['number_entries'].'), probably in error. Please report this to info@getid3.org referencing bug report #111');
}
}
$stsdEntriesDataOffset = 8;
for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
$atom_structure['sample_description_table'][$i]['size'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 4));
$stsdEntriesDataOffset += 4;
$atom_structure['sample_description_table'][$i]['data_format'] = substr($atom_data, $stsdEntriesDataOffset, 4);
$stsdEntriesDataOffset += 4;
$atom_structure['sample_description_table'][$i]['reserved'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 6));
$stsdEntriesDataOffset += 6;
$atom_structure['sample_description_table'][$i]['reference_index'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 2));
$stsdEntriesDataOffset += 2;
$atom_structure['sample_description_table'][$i]['data'] = substr($atom_data, $stsdEntriesDataOffset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2));
$stsdEntriesDataOffset += ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2);
if (substr($atom_structure['sample_description_table'][$i]['data'], 1, 54) == 'application/octet-stream;type=com.parrot.videometadata') {
// special handling for apparently-malformed (TextMetaDataSampleEntry?) data for some version of Parrot drones
$atom_structure['sample_description_table'][$i]['parrot_frame_metadata']['mime_type'] = substr($atom_structure['sample_description_table'][$i]['data'], 1, 55);
$atom_structure['sample_description_table'][$i]['parrot_frame_metadata']['metadata_version'] = (int) substr($atom_structure['sample_description_table'][$i]['data'], 55, 1);
unset($atom_structure['sample_description_table'][$i]['data']);
$this->warning('incomplete/incorrect handling of "stsd" with Parrot metadata in this version of getID3() ['.$this->getid3->version().']');
continue;
}
$atom_structure['sample_description_table'][$i]['encoder_version'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 0, 2));
$atom_structure['sample_description_table'][$i]['encoder_revision'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 2, 2));
$atom_structure['sample_description_table'][$i]['encoder_vendor'] = substr($atom_structure['sample_description_table'][$i]['data'], 4, 4);
switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) {
case "\x00\x00\x00\x00":
// audio tracks
$atom_structure['sample_description_table'][$i]['audio_channels'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 8, 2));
$atom_structure['sample_description_table'][$i]['audio_bit_depth'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 10, 2));
$atom_structure['sample_description_table'][$i]['audio_compression_id'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12, 2));
$atom_structure['sample_description_table'][$i]['audio_packet_size'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 14, 2));
$atom_structure['sample_description_table'][$i]['audio_sample_rate'] = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16, 4));
// video tracks
// http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap3/qtff3.html
$atom_structure['sample_description_table'][$i]['temporal_quality'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 8, 4));
$atom_structure['sample_description_table'][$i]['spatial_quality'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12, 4));
$atom_structure['sample_description_table'][$i]['width'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16, 2));
$atom_structure['sample_description_table'][$i]['height'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18, 2));
$atom_structure['sample_description_table'][$i]['resolution_x'] = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24, 4));
$atom_structure['sample_description_table'][$i]['resolution_y'] = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 28, 4));
$atom_structure['sample_description_table'][$i]['data_size'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32, 4));
$atom_structure['sample_description_table'][$i]['frame_count'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 36, 2));
$atom_structure['sample_description_table'][$i]['compressor_name'] = substr($atom_structure['sample_description_table'][$i]['data'], 38, 4);
$atom_structure['sample_description_table'][$i]['pixel_depth'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 42, 2));
$atom_structure['sample_description_table'][$i]['color_table_id'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 44, 2));
switch ($atom_structure['sample_description_table'][$i]['data_format']) {
case '2vuY':
case 'avc1':
case 'cvid':
case 'dvc ':
case 'dvcp':
case 'gif ':
case 'h263':
case 'hvc1':
case 'jpeg':
case 'kpcd':
case 'mjpa':
case 'mjpb':
case 'mp4v':
case 'png ':
case 'raw ':
case 'rle ':
case 'rpza':
case 'smc ':
case 'SVQ1':
case 'SVQ3':
case 'tiff':
case 'v210':
case 'v216':
case 'v308':
case 'v408':
case 'v410':
case 'yuv2':
$info['fileformat'] = 'mp4';
$info['video']['fourcc'] = $atom_structure['sample_description_table'][$i]['data_format'];
if ($this->QuicktimeVideoCodecLookup($info['video']['fourcc'])) {
$info['video']['fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($info['video']['fourcc']);
}
// https://www.getid3.org/phpBB3/viewtopic.php?t=1550
//if ((!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['width'])) && (empty($info['video']['resolution_x']) || empty($info['video']['resolution_y']) || (number_format($info['video']['resolution_x'], 6) != number_format(round($info['video']['resolution_x']), 6)) || (number_format($info['video']['resolution_y'], 6) != number_format(round($info['video']['resolution_y']), 6)))) { // ugly check for floating point numbers
if (!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['height'])) {
// assume that values stored here are more important than values stored in [tkhd] atom
$info['video']['resolution_x'] = $atom_structure['sample_description_table'][$i]['width'];
$info['video']['resolution_y'] = $atom_structure['sample_description_table'][$i]['height'];
$info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
$info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
}
break;
case 'qtvr':
$info['video']['dataformat'] = 'quicktimevr';
break;
case 'mp4a':
default:
$info['quicktime']['audio']['codec'] = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
$info['quicktime']['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate'];
$info['quicktime']['audio']['channels'] = $atom_structure['sample_description_table'][$i]['audio_channels'];
$info['quicktime']['audio']['bit_depth'] = $atom_structure['sample_description_table'][$i]['audio_bit_depth'];
$info['audio']['codec'] = $info['quicktime']['audio']['codec'];
$info['audio']['sample_rate'] = $info['quicktime']['audio']['sample_rate'];
$info['audio']['channels'] = $info['quicktime']['audio']['channels'];
$info['audio']['bits_per_sample'] = $info['quicktime']['audio']['bit_depth'];
switch ($atom_structure['sample_description_table'][$i]['data_format']) {
case 'raw ': // PCM
case 'alac': // Apple Lossless Audio Codec
case 'sowt': // signed/two's complement (Little Endian)
case 'twos': // signed/two's complement (Big Endian)
case 'in24': // 24-bit Integer
case 'in32': // 32-bit Integer
case 'fl32': // 32-bit Floating Point
case 'fl64': // 64-bit Floating Point
$info['audio']['lossless'] = $info['quicktime']['audio']['lossless'] = true;
$info['audio']['bitrate'] = $info['quicktime']['audio']['bitrate'] = $info['audio']['channels'] * $info['audio']['bits_per_sample'] * $info['audio']['sample_rate'];
break;
default:
$info['audio']['lossless'] = false;
break;
}
break;
}
break;
default:
switch ($atom_structure['sample_description_table'][$i]['data_format']) {
case 'mp4s':
$info['fileformat'] = 'mp4';
break;
default:
// video atom
$atom_structure['sample_description_table'][$i]['video_temporal_quality'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 8, 4));
$atom_structure['sample_description_table'][$i]['video_spatial_quality'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12, 4));
$atom_structure['sample_description_table'][$i]['video_frame_width'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16, 2));
$atom_structure['sample_description_table'][$i]['video_frame_height'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18, 2));
$atom_structure['sample_description_table'][$i]['video_resolution_x'] = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20, 4));
$atom_structure['sample_description_table'][$i]['video_resolution_y'] = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24, 4));
$atom_structure['sample_description_table'][$i]['video_data_size'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 28, 4));
$atom_structure['sample_description_table'][$i]['video_frame_count'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32, 2));
$atom_structure['sample_description_table'][$i]['video_encoder_name_len'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 34, 1));
$atom_structure['sample_description_table'][$i]['video_encoder_name'] = substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']);
$atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66, 2));
$atom_structure['sample_description_table'][$i]['video_color_table_id'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68, 2));
$atom_structure['sample_description_table'][$i]['video_pixel_color_type'] = (((int) $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color');
$atom_structure['sample_description_table'][$i]['video_pixel_color_name'] = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']);
if ($atom_structure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') {
$info['quicktime']['video']['codec_fourcc'] = $atom_structure['sample_description_table'][$i]['data_format'];
$info['quicktime']['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
$info['quicktime']['video']['codec'] = (((int) $atom_structure['sample_description_table'][$i]['video_encoder_name_len'] > 0) ? $atom_structure['sample_description_table'][$i]['video_encoder_name'] : $atom_structure['sample_description_table'][$i]['data_format']);
$info['quicktime']['video']['color_depth'] = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'];
$info['quicktime']['video']['color_depth_name'] = $atom_structure['sample_description_table'][$i]['video_pixel_color_name'];
$info['video']['codec'] = $info['quicktime']['video']['codec'];
$info['video']['bits_per_sample'] = $info['quicktime']['video']['color_depth'];
}
$info['video']['lossless'] = false;
$info['video']['pixel_aspect_ratio'] = (float) 1;
break;
}
break;
}
switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) {
case 'mp4a':
$info['audio']['dataformat'] = 'mp4';
$info['quicktime']['audio']['codec'] = 'mp4';
break;
case '3ivx':
case '3iv1':
case '3iv2':
$info['video']['dataformat'] = '3ivx';
break;
case 'xvid':
$info['video']['dataformat'] = 'xvid';
break;
case 'mp4v':
$info['video']['dataformat'] = 'mpeg4';
break;
case 'divx':
case 'div1':
case 'div2':
case 'div3':
case 'div4':
case 'div5':
case 'div6':
$info['video']['dataformat'] = 'divx';
break;
default:
// do nothing
break;
}
unset($atom_structure['sample_description_table'][$i]['data']);
}
break;
case 'stts': // Sample Table Time-to-Sample atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$sttsEntriesDataOffset = 8;
//$FrameRateCalculatorArray = array();
$frames_count = 0;
$max_stts_entries_to_scan = ($info['php_memory_limit'] ? min(floor($this->getid3->memory_limit / 10000), $atom_structure['number_entries']) : $atom_structure['number_entries']);
if ($max_stts_entries_to_scan < $atom_structure['number_entries']) {
$this->warning('QuickTime atom "stts" has '.$atom_structure['number_entries'].' but only scanning the first '.$max_stts_entries_to_scan.' entries due to limited PHP memory available ('.floor($this->getid3->memory_limit / 1048576).'MB).');
}
for ($i = 0; $i < $max_stts_entries_to_scan; $i++) {
$atom_structure['time_to_sample_table'][$i]['sample_count'] = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
$sttsEntriesDataOffset += 4;
$atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
$sttsEntriesDataOffset += 4;
$frames_count += $atom_structure['time_to_sample_table'][$i]['sample_count'];
// THIS SECTION REPLACED WITH CODE IN "stbl" ATOM
//if (!empty($info['quicktime']['time_scale']) && ($atom_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {
// $stts_new_framerate = $info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'];
// if ($stts_new_framerate <= 60) {
// // some atoms have durations of "1" giving a very large framerate, which probably is not right
// $info['video']['frame_rate'] = max($info['video']['frame_rate'], $stts_new_framerate);
// }
//}
//
//$FrameRateCalculatorArray[($info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count'];
}
$info['quicktime']['stts_framecount'][] = $frames_count;
//$sttsFramesTotal = 0;
//$sttsSecondsTotal = 0;
//foreach ($FrameRateCalculatorArray as $frames_per_second => $frame_count) {
// if (($frames_per_second > 60) || ($frames_per_second < 1)) {
// // not video FPS information, probably audio information
// $sttsFramesTotal = 0;
// $sttsSecondsTotal = 0;
// break;
// }
// $sttsFramesTotal += $frame_count;
// $sttsSecondsTotal += $frame_count / $frames_per_second;
//}
//if (($sttsFramesTotal > 0) && ($sttsSecondsTotal > 0)) {
// if (($sttsFramesTotal / $sttsSecondsTotal) > $info['video']['frame_rate']) {
// $info['video']['frame_rate'] = $sttsFramesTotal / $sttsSecondsTotal;
// }
//}
break;
case 'stss': // Sample Table Sync Sample (key frames) atom
if ($ParseAllPossibleAtoms) {
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$stssEntriesDataOffset = 8;
for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
$atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stssEntriesDataOffset, 4));
$stssEntriesDataOffset += 4;
}
}
break;
case 'stsc': // Sample Table Sample-to-Chunk atom
if ($ParseAllPossibleAtoms) {
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$stscEntriesDataOffset = 8;
for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
$atom_structure['sample_to_chunk_table'][$i]['first_chunk'] = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
$stscEntriesDataOffset += 4;
$atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk'] = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
$stscEntriesDataOffset += 4;
$atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
$stscEntriesDataOffset += 4;
}
}
break;
case 'stsz': // Sample Table SiZe atom
if ($ParseAllPossibleAtoms) {
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['sample_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4));
$stszEntriesDataOffset = 12;
if ($atom_structure['sample_size'] == 0) {
for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
$atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stszEntriesDataOffset, 4));
$stszEntriesDataOffset += 4;
}
}
}
break;
case 'stco': // Sample Table Chunk Offset atom
// if (true) {
if ($ParseAllPossibleAtoms) {
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$stcoEntriesDataOffset = 8;
for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
$atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 4));
$stcoEntriesDataOffset += 4;
}
}
break;
case 'co64': // Chunk Offset 64-bit (version of "stco" that supports > 2GB files)
if ($ParseAllPossibleAtoms) {
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$stcoEntriesDataOffset = 8;
for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
$atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 8));
$stcoEntriesDataOffset += 8;
}
}
break;
case 'dref': // Data REFerence atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$drefDataOffset = 8;
for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
$atom_structure['data_references'][$i]['size'] = getid3_lib::BigEndian2Int(substr($atom_data, $drefDataOffset, 4));
$drefDataOffset += 4;
$atom_structure['data_references'][$i]['type'] = substr($atom_data, $drefDataOffset, 4);
$drefDataOffset += 4;
$atom_structure['data_references'][$i]['version'] = getid3_lib::BigEndian2Int(substr($atom_data, $drefDataOffset, 1));
$drefDataOffset += 1;
$atom_structure['data_references'][$i]['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, $drefDataOffset, 3)); // hardcoded: 0x0000
$drefDataOffset += 3;
$atom_structure['data_references'][$i]['data'] = substr($atom_data, $drefDataOffset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3));
$drefDataOffset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3);
$atom_structure['data_references'][$i]['flags']['self_reference'] = (bool) ($atom_structure['data_references'][$i]['flags_raw'] & 0x001);
}
break;
case 'gmin': // base Media INformation atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['graphics_mode'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2));
$atom_structure['opcolor_red'] = getid3_lib::BigEndian2Int(substr($atom_data, 6, 2));
$atom_structure['opcolor_green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 2));
$atom_structure['opcolor_blue'] = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
$atom_structure['balance'] = getid3_lib::BigEndian2Int(substr($atom_data, 12, 2));
$atom_structure['reserved'] = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
break;
case 'smhd': // Sound Media information HeaDer atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['balance'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2));
$atom_structure['reserved'] = getid3_lib::BigEndian2Int(substr($atom_data, 6, 2));
break;
case 'vmhd': // Video Media information HeaDer atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
$atom_structure['graphics_mode'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2));
$atom_structure['opcolor_red'] = getid3_lib::BigEndian2Int(substr($atom_data, 6, 2));
$atom_structure['opcolor_green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 2));
$atom_structure['opcolor_blue'] = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
$atom_structure['flags']['no_lean_ahead'] = (bool) ($atom_structure['flags_raw'] & 0x001);
break;
case 'hdlr': // HanDLeR reference atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['component_type'] = substr($atom_data, 4, 4);
$atom_structure['component_subtype'] = substr($atom_data, 8, 4);
$atom_structure['component_manufacturer'] = substr($atom_data, 12, 4);
$atom_structure['component_flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
$atom_structure['component_flags_mask'] = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
$atom_structure['component_name'] = $this->MaybePascal2String(substr($atom_data, 24));
if (($atom_structure['component_subtype'] == 'STpn') && ($atom_structure['component_manufacturer'] == 'zzzz')) {
$info['video']['dataformat'] = 'quicktimevr';
}
break;
case 'mdhd': // MeDia HeaDer atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['creation_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$atom_structure['modify_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4));
$atom_structure['time_scale'] = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
$atom_structure['duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
$atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 20, 2));
$atom_structure['quality'] = getid3_lib::BigEndian2Int(substr($atom_data, 22, 2));
if ($atom_structure['time_scale'] == 0) {
$this->error('Corrupt Quicktime file: mdhd.time_scale == zero');
return false;
}
$info['quicktime']['time_scale'] = ((isset($info['quicktime']['time_scale']) && ($info['quicktime']['time_scale'] < 1000)) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
$atom_structure['creation_time_unix'] = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
$atom_structure['modify_time_unix'] = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
$atom_structure['playtime_seconds'] = $atom_structure['duration'] / $atom_structure['time_scale'];
$atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
$info['comments']['language'][] = $atom_structure['language'];
}
$info['quicktime']['timestamps_unix']['create'][$atom_structure['hierarchy']] = $atom_structure['creation_time_unix'];
$info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modify_time_unix'];
break;
case 'pnot': // Preview atom
$atom_structure['modification_date'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); // "standard Macintosh format"
$atom_structure['version_number'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x00
$atom_structure['atom_type'] = substr($atom_data, 6, 4); // usually: 'PICT'
$atom_structure['atom_index'] = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2)); // usually: 0x01
$atom_structure['modification_date_unix'] = getid3_lib::DateMac2Unix($atom_structure['modification_date']);
$info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modification_date_unix'];
break;
case 'crgn': // Clipping ReGioN atom
$atom_structure['region_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2)); // The Region size, Region boundary box,
$atom_structure['boundary_box'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 8)); // and Clipping region data fields
$atom_structure['clipping_data'] = substr($atom_data, 10); // constitute a QuickDraw region.
break;
case 'load': // track LOAD settings atom
$atom_structure['preload_start_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
$atom_structure['preload_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$atom_structure['preload_flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4));
$atom_structure['default_hints_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
$atom_structure['default_hints']['double_buffer'] = (bool) ($atom_structure['default_hints_raw'] & 0x0020);
$atom_structure['default_hints']['high_quality'] = (bool) ($atom_structure['default_hints_raw'] & 0x0100);
break;
case 'tmcd': // TiMe CoDe atom
case 'chap': // CHAPter list atom
case 'sync': // SYNChronization atom
case 'scpt': // tranSCriPT atom
case 'ssrc': // non-primary SouRCe atom
for ($i = 0; $i < strlen($atom_data); $i += 4) {
@$atom_structure['track_id'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
}
break;
case 'elst': // Edit LiST atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
for ($i = 0; $i < $atom_structure['number_entries']; $i++ ) {
$atom_structure['edit_list'][$i]['track_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 0, 4));
$atom_structure['edit_list'][$i]['media_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 4, 4));
$atom_structure['edit_list'][$i]['media_rate'] = getid3_lib::FixedPoint16_16(substr($atom_data, 8 + ($i * 12) + 8, 4));
}
break;
case 'kmat': // compressed MATte atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
$atom_structure['matte_data_raw'] = substr($atom_data, 4);
break;
case 'ctab': // Color TABle atom
$atom_structure['color_table_seed'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); // hardcoded: 0x00000000
$atom_structure['color_table_flags'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x8000
$atom_structure['color_table_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 6, 2)) + 1;
for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) {
$atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 0, 2));
$atom_structure['color_table'][$colortableentry]['red'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 2, 2));
$atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 4, 2));
$atom_structure['color_table'][$colortableentry]['blue'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 6, 2));
}
break;
case 'mvhd': // MoVie HeaDer atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
$atom_structure['creation_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$atom_structure['modify_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4));
$atom_structure['time_scale'] = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
$atom_structure['duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
$atom_structure['preferred_rate'] = getid3_lib::FixedPoint16_16(substr($atom_data, 20, 4));
$atom_structure['preferred_volume'] = getid3_lib::FixedPoint8_8(substr($atom_data, 24, 2));
$atom_structure['reserved'] = substr($atom_data, 26, 10);
$atom_structure['matrix_a'] = getid3_lib::FixedPoint16_16(substr($atom_data, 36, 4));
$atom_structure['matrix_b'] = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
$atom_structure['matrix_u'] = getid3_lib::FixedPoint2_30(substr($atom_data, 44, 4));
$atom_structure['matrix_c'] = getid3_lib::FixedPoint16_16(substr($atom_data, 48, 4));
$atom_structure['matrix_d'] = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
$atom_structure['matrix_v'] = getid3_lib::FixedPoint2_30(substr($atom_data, 56, 4));
$atom_structure['matrix_x'] = getid3_lib::FixedPoint16_16(substr($atom_data, 60, 4));
$atom_structure['matrix_y'] = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
$atom_structure['matrix_w'] = getid3_lib::FixedPoint2_30(substr($atom_data, 68, 4));
$atom_structure['preview_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 72, 4));
$atom_structure['preview_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 76, 4));
$atom_structure['poster_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 80, 4));
$atom_structure['selection_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 84, 4));
$atom_structure['selection_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 88, 4));
$atom_structure['current_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 92, 4));
$atom_structure['next_track_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 96, 4));
if ($atom_structure['time_scale'] == 0) {
$this->error('Corrupt Quicktime file: mvhd.time_scale == zero');
return false;
}
$atom_structure['creation_time_unix'] = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
$atom_structure['modify_time_unix'] = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
$info['quicktime']['timestamps_unix']['create'][$atom_structure['hierarchy']] = $atom_structure['creation_time_unix'];
$info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modify_time_unix'];
$info['quicktime']['time_scale'] = ((isset($info['quicktime']['time_scale']) && ($info['quicktime']['time_scale'] < 1000)) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
$info['quicktime']['display_scale'] = $atom_structure['matrix_a'];
$info['playtime_seconds'] = $atom_structure['duration'] / $atom_structure['time_scale'];
break;
case 'tkhd': // TracK HeaDer atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
$atom_structure['creation_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$atom_structure['modify_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4));
$atom_structure['trackid'] = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
$atom_structure['reserved1'] = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
$atom_structure['duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
$atom_structure['reserved2'] = getid3_lib::BigEndian2Int(substr($atom_data, 24, 8));
$atom_structure['layer'] = getid3_lib::BigEndian2Int(substr($atom_data, 32, 2));
$atom_structure['alternate_group'] = getid3_lib::BigEndian2Int(substr($atom_data, 34, 2));
$atom_structure['volume'] = getid3_lib::FixedPoint8_8(substr($atom_data, 36, 2));
$atom_structure['reserved3'] = getid3_lib::BigEndian2Int(substr($atom_data, 38, 2));
// http://developer.apple.com/library/mac/#documentation/QuickTime/RM/MovieBasics/MTEditing/K-Chapter/11MatrixFunctions.html
// http://developer.apple.com/library/mac/#documentation/QuickTime/qtff/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-18737
$atom_structure['matrix_a'] = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
$atom_structure['matrix_b'] = getid3_lib::FixedPoint16_16(substr($atom_data, 44, 4));
$atom_structure['matrix_u'] = getid3_lib::FixedPoint2_30(substr($atom_data, 48, 4));
$atom_structure['matrix_c'] = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
$atom_structure['matrix_d'] = getid3_lib::FixedPoint16_16(substr($atom_data, 56, 4));
$atom_structure['matrix_v'] = getid3_lib::FixedPoint2_30(substr($atom_data, 60, 4));
$atom_structure['matrix_x'] = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
$atom_structure['matrix_y'] = getid3_lib::FixedPoint16_16(substr($atom_data, 68, 4));
$atom_structure['matrix_w'] = getid3_lib::FixedPoint2_30(substr($atom_data, 72, 4));
$atom_structure['width'] = getid3_lib::FixedPoint16_16(substr($atom_data, 76, 4));
$atom_structure['height'] = getid3_lib::FixedPoint16_16(substr($atom_data, 80, 4));
$atom_structure['flags']['enabled'] = (bool) ($atom_structure['flags_raw'] & 0x0001);
$atom_structure['flags']['in_movie'] = (bool) ($atom_structure['flags_raw'] & 0x0002);
$atom_structure['flags']['in_preview'] = (bool) ($atom_structure['flags_raw'] & 0x0004);
$atom_structure['flags']['in_poster'] = (bool) ($atom_structure['flags_raw'] & 0x0008);
$atom_structure['creation_time_unix'] = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
$atom_structure['modify_time_unix'] = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
$info['quicktime']['timestamps_unix']['create'][$atom_structure['hierarchy']] = $atom_structure['creation_time_unix'];
$info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modify_time_unix'];
// https://www.getid3.org/phpBB3/viewtopic.php?t=1908
// attempt to compute rotation from matrix values
// 2017-Dec-28: uncertain if 90/270 are correctly oriented; values returned by FixedPoint16_16 should perhaps be -1 instead of 65535(?)
$matrixRotation = 0;
switch ($atom_structure['matrix_a'].':'.$atom_structure['matrix_b'].':'.$atom_structure['matrix_c'].':'.$atom_structure['matrix_d']) {
case '1:0:0:1': $matrixRotation = 0; break;
case '0:1:65535:0': $matrixRotation = 90; break;
case '65535:0:0:65535': $matrixRotation = 180; break;
case '0:65535:1:0': $matrixRotation = 270; break;
default: break;
}
// https://www.getid3.org/phpBB3/viewtopic.php?t=2468
// The rotation matrix can appear in the Quicktime file multiple times, at least once for each track,
// and it's possible that only the video track (or, in theory, one of the video tracks) is flagged as
// rotated while the other tracks (e.g. audio) is tagged as rotation=0 (behavior noted on iPhone 8 Plus)
// The correct solution would be to check if the TrackID associated with the rotation matrix is indeed
// a video track (or the main video track) and only set the rotation then, but since information about
// what track is what is not trivially there to be examined, the lazy solution is to set the rotation
// if it is found to be nonzero, on the assumption that tracks that don't need it will have rotation set
// to zero (and be effectively ignored) and the video track will have rotation set correctly, which will
// either be zero and automatically correct, or nonzero and be set correctly.
if (!isset($info['video']['rotate']) || (($info['video']['rotate'] == 0) && ($matrixRotation > 0))) {
$info['quicktime']['video']['rotate'] = $info['video']['rotate'] = $matrixRotation;
}
if ($atom_structure['flags']['enabled'] == 1) {
if (!isset($info['video']['resolution_x']) || !isset($info['video']['resolution_y'])) {
$info['video']['resolution_x'] = $atom_structure['width'];
$info['video']['resolution_y'] = $atom_structure['height'];
}
$info['video']['resolution_x'] = max($info['video']['resolution_x'], $atom_structure['width']);
$info['video']['resolution_y'] = max($info['video']['resolution_y'], $atom_structure['height']);
$info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
$info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
} else {
// see: https://www.getid3.org/phpBB3/viewtopic.php?t=1295
//if (isset($info['video']['resolution_x'])) { unset($info['video']['resolution_x']); }
//if (isset($info['video']['resolution_y'])) { unset($info['video']['resolution_y']); }
//if (isset($info['quicktime']['video'])) { unset($info['quicktime']['video']); }
}
break;
case 'iods': // Initial Object DeScriptor atom
// http://www.koders.com/c/fid1FAB3E762903DC482D8A246D4A4BF9F28E049594.aspx?s=windows.h
// http://libquicktime.sourcearchive.com/documentation/1.0.2plus-pdebian/iods_8c-source.html
$offset = 0;
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
$offset += 1;
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 3));
$offset += 3;
$atom_structure['mp4_iod_tag'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
$offset += 1;
$atom_structure['length'] = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
//$offset already adjusted by quicktime_read_mp4_descr_length()
$atom_structure['object_descriptor_id'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));
$offset += 2;
$atom_structure['od_profile_level'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
$offset += 1;
$atom_structure['scene_profile_level'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
$offset += 1;
$atom_structure['audio_profile_id'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
$offset += 1;
$atom_structure['video_profile_id'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
$offset += 1;
$atom_structure['graphics_profile_level'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
$offset += 1;
$atom_structure['num_iods_tracks'] = ($atom_structure['length'] - 7) / 6; // 6 bytes would only be right if all tracks use 1-byte length fields
for ($i = 0; $i < $atom_structure['num_iods_tracks']; $i++) {
$atom_structure['track'][$i]['ES_ID_IncTag'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
$offset += 1;
$atom_structure['track'][$i]['length'] = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
//$offset already adjusted by quicktime_read_mp4_descr_length()
$atom_structure['track'][$i]['track_id'] = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));
$offset += 4;
}
$atom_structure['audio_profile_name'] = $this->QuicktimeIODSaudioProfileName($atom_structure['audio_profile_id']);
$atom_structure['video_profile_name'] = $this->QuicktimeIODSvideoProfileName($atom_structure['video_profile_id']);
break;
case 'ftyp': // FileTYPe (?) atom (for MP4 it seems)
$atom_structure['signature'] = substr($atom_data, 0, 4);
$atom_structure['unknown_1'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$atom_structure['fourcc'] = substr($atom_data, 8, 4);
break;
case 'mdat': // Media DATa atom
// 'mdat' contains the actual data for the audio/video, possibly also subtitles
/* due to lack of known documentation, this is a kludge implementation. If you know of documentation on how mdat is properly structed, please send it to info@getid3.org */
// first, skip any 'wide' padding, and second 'mdat' header (with specified size of zero?)
$mdat_offset = 0;
while (true) {
if (substr($atom_data, $mdat_offset, 8) == "\x00\x00\x00\x08".'wide') {
$mdat_offset += 8;
} elseif (substr($atom_data, $mdat_offset, 8) == "\x00\x00\x00\x00".'mdat') {
$mdat_offset += 8;
} else {
break;
}
}
if (substr($atom_data, $mdat_offset, 4) == 'GPRO') {
$GOPRO_chunk_length = getid3_lib::LittleEndian2Int(substr($atom_data, $mdat_offset + 4, 4));
$GOPRO_offset = 8;
$atom_structure['GPRO']['raw'] = substr($atom_data, $mdat_offset + 8, $GOPRO_chunk_length - 8);
$atom_structure['GPRO']['firmware'] = substr($atom_structure['GPRO']['raw'], 0, 15);
$atom_structure['GPRO']['unknown1'] = substr($atom_structure['GPRO']['raw'], 15, 16);
$atom_structure['GPRO']['unknown2'] = substr($atom_structure['GPRO']['raw'], 31, 32);
$atom_structure['GPRO']['unknown3'] = substr($atom_structure['GPRO']['raw'], 63, 16);
$atom_structure['GPRO']['camera'] = substr($atom_structure['GPRO']['raw'], 79, 32);
$info['quicktime']['camera']['model'] = rtrim($atom_structure['GPRO']['camera'], "\x00");
}
// check to see if it looks like chapter titles, in the form of unterminated strings with a leading 16-bit size field
while (($mdat_offset < (strlen($atom_data) - 8))
&& ($chapter_string_length = getid3_lib::BigEndian2Int(substr($atom_data, $mdat_offset, 2)))
&& ($chapter_string_length < 1000)
&& ($chapter_string_length <= (strlen($atom_data) - $mdat_offset - 2))
&& preg_match('#^([\x00-\xFF]{2})([\x20-\xFF]+)$#', substr($atom_data, $mdat_offset, $chapter_string_length + 2), $chapter_matches)) {
list($dummy, $chapter_string_length_hex, $chapter_string) = $chapter_matches;
$mdat_offset += (2 + $chapter_string_length);
@$info['quicktime']['comments']['chapters'][] = $chapter_string;
// "encd" atom specifies encoding. In theory could be anything, almost always UTF-8, but may be UTF-16 with BOM (not currently handled)
if (substr($atom_data, $mdat_offset, 12) == "\x00\x00\x00\x0C\x65\x6E\x63\x64\x00\x00\x01\x00") { // UTF-8
$mdat_offset += 12;
}
}
if (($atomsize > 8) && (!isset($info['avdataend_tmp']) || ($info['quicktime'][$atomname]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) {
$info['avdataoffset'] = $atom_structure['offset'] + 8; // $info['quicktime'][$atomname]['offset'] + 8;
$OldAVDataEnd = $info['avdataend'];
$info['avdataend'] = $atom_structure['offset'] + $atom_structure['size']; // $info['quicktime'][$atomname]['offset'] + $info['quicktime'][$atomname]['size'];
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename, $this->getid3->info['filesize'], $this->getid3->fp);
$getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
$getid3_temp->info['avdataend'] = $info['avdataend'];
$getid3_mp3 = new getid3_mp3($getid3_temp);
if ($getid3_mp3->MPEGaudioHeaderValid($getid3_mp3->MPEGaudioHeaderDecode($this->fread(4)))) {
$getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
if (!empty($getid3_temp->info['warning'])) {
foreach ($getid3_temp->info['warning'] as $value) {
$this->warning($value);
}
}
if (!empty($getid3_temp->info['mpeg'])) {
$info['mpeg'] = $getid3_temp->info['mpeg'];
if (isset($info['mpeg']['audio'])) {
$info['audio']['dataformat'] = 'mp3';
$info['audio']['codec'] = (!empty($info['mpeg']['audio']['encoder']) ? $info['mpeg']['audio']['encoder'] : (!empty($info['mpeg']['audio']['codec']) ? $info['mpeg']['audio']['codec'] : (!empty($info['mpeg']['audio']['LAME']) ? 'LAME' :'mp3')));
$info['audio']['sample_rate'] = $info['mpeg']['audio']['sample_rate'];
$info['audio']['channels'] = $info['mpeg']['audio']['channels'];
$info['audio']['bitrate'] = $info['mpeg']['audio']['bitrate'];
$info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']);
$info['bitrate'] = $info['audio']['bitrate'];
}
}
}
unset($getid3_mp3, $getid3_temp);
$info['avdataend'] = $OldAVDataEnd;
unset($OldAVDataEnd);
}
unset($mdat_offset, $chapter_string_length, $chapter_matches);
break;
case 'ID32': // ID3v2
getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true);
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename, $this->getid3->info['filesize'], $this->getid3->fp);
$getid3_id3v2 = new getid3_id3v2($getid3_temp);
$getid3_id3v2->StartingOffset = $atom_structure['offset'] + 14; // framelength(4)+framename(4)+flags(4)+??(2)
if ($atom_structure['valid'] = $getid3_id3v2->Analyze()) {
$atom_structure['id3v2'] = $getid3_temp->info['id3v2'];
} else {
$this->warning('ID32 frame at offset '.$atom_structure['offset'].' did not parse');
}
unset($getid3_temp, $getid3_id3v2);
break;
case 'free': // FREE space atom
case 'skip': // SKIP atom
case 'wide': // 64-bit expansion placeholder atom
// 'free', 'skip' and 'wide' are just padding, contains no useful data at all
// When writing QuickTime files, it is sometimes necessary to update an atom's size.
// It is impossible to update a 32-bit atom to a 64-bit atom since the 32-bit atom
// is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime
// puts an 8-byte placeholder atom before any atoms it may have to update the size of.
// In this way, if the atom needs to be converted from a 32-bit to a 64-bit atom, the
// placeholder atom can be overwritten to obtain the necessary 8 extra bytes.
// The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ).
break;
case 'nsav': // NoSAVe atom
// http://developer.apple.com/technotes/tn/tn2038.html
$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
break;
case 'ctyp': // Controller TYPe atom (seen on QTVR)
// http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
// some controller names are:
// 0x00 + 'std' for linear movie
// 'none' for no controls
$atom_structure['ctyp'] = substr($atom_data, 0, 4);
$info['quicktime']['controller'] = $atom_structure['ctyp'];
switch ($atom_structure['ctyp']) {
case 'qtvr':
$info['video']['dataformat'] = 'quicktimevr';
break;
}
break;
case 'pano': // PANOrama track (seen on QTVR)
$atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
break;
case 'hint': // HINT track
case 'hinf': //
case 'hinv': //
case 'hnti': //
$info['quicktime']['hinting'] = true;
break;
case 'imgt': // IMaGe Track reference (kQTVRImageTrackRefType) (seen on QTVR)
for ($i = 0; $i < ($atom_structure['size'] - 8); $i += 4) {
$atom_structure['imgt'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
}
break;
// Observed-but-not-handled atom types are just listed here to prevent warnings being generated
case 'FXTC': // Something to do with Adobe After Effects (?)
case 'PrmA':
case 'code':
case 'FIEL': // this is NOT "fiel" (Field Ordering) as describe here: http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html
case 'tapt': // TrackApertureModeDimensionsAID - http://developer.apple.com/documentation/QuickTime/Reference/QT7-1_Update_Reference/Constants/Constants.html
// tapt seems to be used to compute the video size [https://www.getid3.org/phpBB3/viewtopic.php?t=838]
// * http://lists.apple.com/archives/quicktime-api/2006/Aug/msg00014.html
// * http://handbrake.fr/irclogs/handbrake-dev/handbrake-dev20080128_pg2.html
case 'ctts':// STCompositionOffsetAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
case 'cslg':// STCompositionShiftLeastGreatestAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
case 'sdtp':// STSampleDependencyAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
case 'stps':// STPartialSyncSampleAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
//$atom_structure['data'] = $atom_data;
break;
case "\xA9".'xyz': // GPS latitude+longitude+altitude
$atom_structure['data'] = $atom_data;
if (preg_match('#([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)?/$#i', $atom_data, $matches)) {
@list($all, $latitude, $longitude, $altitude) = $matches;
$info['quicktime']['comments']['gps_latitude'][] = floatval($latitude);
$info['quicktime']['comments']['gps_longitude'][] = floatval($longitude);
if (!empty($altitude)) {
$info['quicktime']['comments']['gps_altitude'][] = floatval($altitude);
}
} else {
$this->warning('QuickTime atom "©xyz" data does not match expected data pattern at offset '.$baseoffset.'. Please report as getID3() bug.');
}
break;
case 'NCDT':
// https://exiftool.org/TagNames/Nikon.html
// Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 4, $atomHierarchy, $ParseAllPossibleAtoms);
break;
case 'NCTH': // Nikon Camera THumbnail image
case 'NCVW': // Nikon Camera preVieW image
case 'NCM1': // Nikon Camera preview iMage 1
case 'NCM2': // Nikon Camera preview iMage 2
// https://exiftool.org/TagNames/Nikon.html
if (preg_match('/^\xFF\xD8\xFF/', $atom_data)) {
$descriptions = array(
'NCTH' => 'Nikon Camera Thumbnail Image',
'NCVW' => 'Nikon Camera Preview Image',
'NCM1' => 'Nikon Camera Preview Image 1',
'NCM2' => 'Nikon Camera Preview Image 2',
);
$atom_structure['data'] = $atom_data;
$atom_structure['image_mime'] = 'image/jpeg';
$atom_structure['description'] = isset($descriptions[$atomname]) ? $descriptions[$atomname] : 'Nikon preview image';
$info['quicktime']['comments']['picture'][] = array(
'image_mime' => $atom_structure['image_mime'],
'data' => $atom_data,
'description' => $atom_structure['description']
);
}
break;
case 'NCTG': // Nikon - https://exiftool.org/TagNames/Nikon.html#NCTG
getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.nikon-nctg.php', __FILE__, true);
$nikonNCTG = new getid3_tag_nikon_nctg($this->getid3);
$atom_structure['data'] = $nikonNCTG->parse($atom_data);
break;
case 'NCHD': // Nikon:MakerNoteVersion - https://exiftool.org/TagNames/Nikon.html
$makerNoteVersion = '';
for ($i = 0, $iMax = strlen($atom_data); $i < $iMax; ++$i) {
if (ord($atom_data[$i]) >= 0x00 && ord($atom_data[$i]) <= 0x1F) {
$makerNoteVersion .= ' '.ord($atom_data[$i]);
} else {
$makerNoteVersion .= $atom_data[$i];
}
}
$makerNoteVersion = rtrim($makerNoteVersion, "\x00");
$atom_structure['data'] = array(
'MakerNoteVersion' => $makerNoteVersion
);
break;
case 'NCDB': // Nikon - https://exiftool.org/TagNames/Nikon.html
case 'CNCV': // Canon:CompressorVersion - https://exiftool.org/TagNames/Canon.html
$atom_structure['data'] = $atom_data;
break;
case "\x00\x00\x00\x00":
// some kind of metacontainer, may contain a big data dump such as:
// mdta keys \005 mdtacom.apple.quicktime.make (mdtacom.apple.quicktime.creationdate ,mdtacom.apple.quicktime.location.ISO6709 $mdtacom.apple.quicktime.software !mdtacom.apple.quicktime.model ilst \01D \001 \015data \001DE\010Apple 0 \002 (data \001DE\0102011-05-11T17:54:04+0200 2 \003 *data \001DE\010+52.4936+013.3897+040.247/ \01D \004 \015data \001DE\0104.3.1 \005 \018data \001DE\010iPhone 4
// https://xhelmboyx.tripod.com/formats/qti-layout.txt
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom(substr($atom_data, 4), $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
//$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
break;
case 'meta': // METAdata atom
// https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
break;
case 'data': // metaDATA atom
static $metaDATAkey = 1; // real ugly, but so is the QuickTime structure that stores keys and values in different multinested locations that are hard to relate to each other
// seems to be 2 bytes language code (ASCII), 2 bytes unknown (set to 0x10B5 in sample I have), remainder is useful data
$atom_structure['language'] = substr($atom_data, 4 + 0, 2);
$atom_structure['unknown'] = getid3_lib::BigEndian2Int(substr($atom_data, 4 + 2, 2));
$atom_structure['data'] = substr($atom_data, 4 + 4);
$atom_structure['key_name'] = (isset($info['quicktime']['temp_meta_key_names'][$metaDATAkey]) ? $info['quicktime']['temp_meta_key_names'][$metaDATAkey] : '');
$metaDATAkey++;
if ($atom_structure['key_name'] && $atom_structure['data']) {
@$info['quicktime']['comments'][str_replace('com.apple.quicktime.', '', $atom_structure['key_name'])][] = $atom_structure['data'];
}
break;
case 'keys': // KEYS that may be present in the metadata atom.
// https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html#//apple_ref/doc/uid/TP40000939-CH1-SW21
// The metadata item keys atom holds a list of the metadata keys that may be present in the metadata atom.
// This list is indexed starting with 1; 0 is a reserved index value. The metadata item keys atom is a full atom with an atom type of "keys".
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
$atom_structure['entry_count'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$keys_atom_offset = 8;
for ($i = 1; $i <= $atom_structure['entry_count']; $i++) {
$atom_structure['keys'][$i]['key_size'] = getid3_lib::BigEndian2Int(substr($atom_data, $keys_atom_offset + 0, 4));
$atom_structure['keys'][$i]['key_namespace'] = substr($atom_data, $keys_atom_offset + 4, 4);
$atom_structure['keys'][$i]['key_value'] = substr($atom_data, $keys_atom_offset + 8, $atom_structure['keys'][$i]['key_size'] - 8);
$keys_atom_offset += $atom_structure['keys'][$i]['key_size']; // key_size includes the 4+4 bytes for key_size and key_namespace
$info['quicktime']['temp_meta_key_names'][$i] = $atom_structure['keys'][$i]['key_value'];
}
break;
case 'uuid': // user-defined atom often seen containing XML data, also used for potentially many other purposes, only a few specifically handled by getID3 (e.g. 360fly spatial data)
//Get the UUID ID in first 16 bytes
$uuid_bytes_read = unpack('H8time_low/H4time_mid/H4time_hi/H4clock_seq_hi/H12clock_seq_low', substr($atom_data, 0, 16));
$atom_structure['uuid_field_id'] = implode('-', $uuid_bytes_read);
switch ($atom_structure['uuid_field_id']) { // http://fileformats.archiveteam.org/wiki/Boxes/atoms_format#UUID_boxes
case '0537cdab-9d0c-4431-a72a-fa561f2a113e': // Exif - http://fileformats.archiveteam.org/wiki/Exif
case '2c4c0100-8504-40b9-a03e-562148d6dfeb': // Photoshop Image Resources - http://fileformats.archiveteam.org/wiki/Photoshop_Image_Resources
case '33c7a4d2-b81d-4723-a0ba-f1a3e097ad38': // IPTC-IIM - http://fileformats.archiveteam.org/wiki/IPTC-IIM
case '8974dbce-7be7-4c51-84f9-7148f9882554': // PIFF Track Encryption Box - http://fileformats.archiveteam.org/wiki/Protected_Interoperable_File_Format
case '96a9f1f1-dc98-402d-a7ae-d68e34451809': // GeoJP2 World File Box - http://fileformats.archiveteam.org/wiki/GeoJP2
case 'a2394f52-5a9b-4f14-a244-6c427c648df4': // PIFF Sample Encryption Box - http://fileformats.archiveteam.org/wiki/Protected_Interoperable_File_Format
case 'b14bf8bd-083d-4b43-a5ae-8cd7d5a6ce03': // GeoJP2 GeoTIFF Box - http://fileformats.archiveteam.org/wiki/GeoJP2
case 'd08a4f18-10f3-4a82-b6c8-32d8aba183d3': // PIFF Protection System Specific Header Box - http://fileformats.archiveteam.org/wiki/Protected_Interoperable_File_Format
$this->warning('Unhandled (but recognized) "uuid" atom identified by "'.$atom_structure['uuid_field_id'].'" at offset '.$atom_structure['offset'].' ('.strlen($atom_data).' bytes)');
break;
case 'be7acfcb-97a9-42e8-9c71-999491e3afac': // XMP data (in XML format)
$atom_structure['xml'] = substr($atom_data, 16, strlen($atom_data) - 16 - 8); // 16 bytes for UUID, 8 bytes header(?)
break;
case 'efe1589a-bb77-49ef-8095-27759eb1dc6f': // 360fly data
/* 360fly code in this block by Paul Lewis 2019-Oct-31 */
/* Sensor Timestamps need to be calculated using the recordings base time at ['quicktime']['moov']['subatoms'][0]['creation_time_unix']. */
$atom_structure['title'] = '360Fly Sensor Data';
//Get the UUID HEADER data
$uuid_bytes_read = unpack('vheader_size/vheader_version/vtimescale/vhardware_version/x/x/x/x/x/x/x/x/x/x/x/x/x/x/x/x/', substr($atom_data, 16, 32));
$atom_structure['uuid_header'] = $uuid_bytes_read;
$start_byte = 48;
$atom_SENSOR_data = substr($atom_data, $start_byte);
$atom_structure['sensor_data']['data_type'] = array(
'fusion_count' => 0, // ID 250
'fusion_data' => array(),
'accel_count' => 0, // ID 1
'accel_data' => array(),
'gyro_count' => 0, // ID 2
'gyro_data' => array(),
'magno_count' => 0, // ID 3
'magno_data' => array(),
'gps_count' => 0, // ID 5
'gps_data' => array(),
'rotation_count' => 0, // ID 6
'rotation_data' => array(),
'unknown_count' => 0, // ID ??
'unknown_data' => array(),
'debug_list' => '', // Used to debug variables stored as comma delimited strings
);
$debug_structure = array();
$debug_structure['debug_items'] = array();
// Can start loop here to decode all sensor data in 32 Byte chunks:
foreach (str_split($atom_SENSOR_data, 32) as $sensor_key => $sensor_data) {
// This gets me a data_type code to work out what data is in the next 31 bytes.
$sensor_data_type = substr($sensor_data, 0, 1);
$sensor_data_content = substr($sensor_data, 1);
$uuid_bytes_read = unpack('C*', $sensor_data_type);
$sensor_data_array = array();
switch ($uuid_bytes_read[1]) {
case 250:
$atom_structure['sensor_data']['data_type']['fusion_count']++;
$uuid_bytes_read = unpack('cmode/Jtimestamp/Gyaw/Gpitch/Groll/x*', $sensor_data_content);
$sensor_data_array['mode'] = $uuid_bytes_read['mode'];
$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
$sensor_data_array['yaw'] = $uuid_bytes_read['yaw'];
$sensor_data_array['pitch'] = $uuid_bytes_read['pitch'];
$sensor_data_array['roll'] = $uuid_bytes_read['roll'];
array_push($atom_structure['sensor_data']['data_type']['fusion_data'], $sensor_data_array);
break;
case 1:
$atom_structure['sensor_data']['data_type']['accel_count']++;
$uuid_bytes_read = unpack('cmode/Jtimestamp/Gyaw/Gpitch/Groll/x*', $sensor_data_content);
$sensor_data_array['mode'] = $uuid_bytes_read['mode'];
$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
$sensor_data_array['yaw'] = $uuid_bytes_read['yaw'];
$sensor_data_array['pitch'] = $uuid_bytes_read['pitch'];
$sensor_data_array['roll'] = $uuid_bytes_read['roll'];
array_push($atom_structure['sensor_data']['data_type']['accel_data'], $sensor_data_array);
break;
case 2:
$atom_structure['sensor_data']['data_type']['gyro_count']++;
$uuid_bytes_read = unpack('cmode/Jtimestamp/Gyaw/Gpitch/Groll/x*', $sensor_data_content);
$sensor_data_array['mode'] = $uuid_bytes_read['mode'];
$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
$sensor_data_array['yaw'] = $uuid_bytes_read['yaw'];
$sensor_data_array['pitch'] = $uuid_bytes_read['pitch'];
$sensor_data_array['roll'] = $uuid_bytes_read['roll'];
array_push($atom_structure['sensor_data']['data_type']['gyro_data'], $sensor_data_array);
break;
case 3:
$atom_structure['sensor_data']['data_type']['magno_count']++;
$uuid_bytes_read = unpack('cmode/Jtimestamp/Gmagx/Gmagy/Gmagz/x*', $sensor_data_content);
$sensor_data_array['mode'] = $uuid_bytes_read['mode'];
$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
$sensor_data_array['magx'] = $uuid_bytes_read['magx'];
$sensor_data_array['magy'] = $uuid_bytes_read['magy'];
$sensor_data_array['magz'] = $uuid_bytes_read['magz'];
array_push($atom_structure['sensor_data']['data_type']['magno_data'], $sensor_data_array);
break;
case 5:
$atom_structure['sensor_data']['data_type']['gps_count']++;
$uuid_bytes_read = unpack('cmode/Jtimestamp/Glat/Glon/Galt/Gspeed/nbearing/nacc/x*', $sensor_data_content);
$sensor_data_array['mode'] = $uuid_bytes_read['mode'];
$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
$sensor_data_array['lat'] = $uuid_bytes_read['lat'];
$sensor_data_array['lon'] = $uuid_bytes_read['lon'];
$sensor_data_array['alt'] = $uuid_bytes_read['alt'];
$sensor_data_array['speed'] = $uuid_bytes_read['speed'];
$sensor_data_array['bearing'] = $uuid_bytes_read['bearing'];
$sensor_data_array['acc'] = $uuid_bytes_read['acc'];
array_push($atom_structure['sensor_data']['data_type']['gps_data'], $sensor_data_array);
//array_push($debug_structure['debug_items'], $uuid_bytes_read['timestamp']);
break;
case 6:
$atom_structure['sensor_data']['data_type']['rotation_count']++;
$uuid_bytes_read = unpack('cmode/Jtimestamp/Grotx/Groty/Grotz/x*', $sensor_data_content);
$sensor_data_array['mode'] = $uuid_bytes_read['mode'];
$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
$sensor_data_array['rotx'] = $uuid_bytes_read['rotx'];
$sensor_data_array['roty'] = $uuid_bytes_read['roty'];
$sensor_data_array['rotz'] = $uuid_bytes_read['rotz'];
array_push($atom_structure['sensor_data']['data_type']['rotation_data'], $sensor_data_array);
break;
default:
$atom_structure['sensor_data']['data_type']['unknown_count']++;
break;
}
}
//if (isset($debug_structure['debug_items']) && count($debug_structure['debug_items']) > 0) {
// $atom_structure['sensor_data']['data_type']['debug_list'] = implode(',', $debug_structure['debug_items']);
//} else {
$atom_structure['sensor_data']['data_type']['debug_list'] = 'No debug items in list!';
//}
break;
default:
$this->warning('Unhandled "uuid" atom identified by "'.$atom_structure['uuid_field_id'].'" at offset '.$atom_structure['offset'].' ('.strlen($atom_data).' bytes)');
}
break;
case 'gps ':
// https://dashcamtalk.com/forum/threads/script-to-extract-gps-data-from-novatek-mp4.20808/page-2#post-291730
// The 'gps ' contains simple look up table made up of 8byte rows, that point to the 'free' atoms that contains the actual GPS data.
// The first row is version/metadata/notsure, I skip that.
// The following rows consist of 4byte address (absolute) and 4byte size (0x1000), these point to the GPS data in the file.
$GPS_rowsize = 8; // 4 bytes for offset, 4 bytes for size
if (strlen($atom_data) > 0) {
if ((strlen($atom_data) % $GPS_rowsize) == 0) {
$atom_structure['gps_toc'] = array();
foreach (str_split($atom_data, $GPS_rowsize) as $counter => $datapair) {
$atom_structure['gps_toc'][] = unpack('Noffset/Nsize', substr($atom_data, $counter * $GPS_rowsize, $GPS_rowsize));
}
$atom_structure['gps_entries'] = array();
$previous_offset = $this->ftell();
foreach ($atom_structure['gps_toc'] as $key => $gps_pointer) {
if ($key == 0) {
// "The first row is version/metadata/notsure, I skip that."
continue;
}
$this->fseek($gps_pointer['offset']);
$GPS_free_data = $this->fread($gps_pointer['size']);
/*
// 2017-05-10: I see some of the data, notably the Hour-Minute-Second, but cannot reconcile the rest of the data. However, the NMEA "GPRMC" line is there and relatively easy to parse, so I'm using that instead
// https://dashcamtalk.com/forum/threads/script-to-extract-gps-data-from-novatek-mp4.20808/page-2#post-291730
// The structure of the GPS data atom (the 'free' atoms mentioned above) is following:
// hour,minute,second,year,month,day,active,latitude_b,longitude_b,unknown2,latitude,longitude,speed = struct.unpack_from('<IIIIIIssssfff',data, 48)
// For those unfamiliar with python struct:
// I = int
// s = is string (size 1, in this case)
// f = float
//$atom_structure['gps_entries'][$key] = unpack('Vhour/Vminute/Vsecond/Vyear/Vmonth/Vday/Vactive/Vlatitude_b/Vlongitude_b/Vunknown2/flatitude/flongitude/fspeed', substr($GPS_free_data, 48));
*/
// $GPRMC,081836,A,3751.65,S,14507.36,E,000.0,360.0,130998,011.3,E*62
// $GPRMC,183731,A,3907.482,N,12102.436,W,000.0,360.0,080301,015.5,E*67
// $GPRMC,002454,A,3553.5295,N,13938.6570,E,0.0,43.1,180700,7.1,W,A*3F
// $GPRMC,094347.000,A,5342.0061,N,00737.9908,W,0.01,156.75,140217,,,A*7D
if (preg_match('#\\$GPRMC,([0-9\\.]*),([AV]),([0-9\\.]*),([NS]),([0-9\\.]*),([EW]),([0-9\\.]*),([0-9\\.]*),([0-9]*),([0-9\\.]*),([EW]?)(,[A])?(\\*[0-9A-F]{2})#', $GPS_free_data, $matches)) {
$GPS_this_GPRMC = array();
$GPS_this_GPRMC_raw = array();
list(
$GPS_this_GPRMC_raw['gprmc'],
$GPS_this_GPRMC_raw['timestamp'],
$GPS_this_GPRMC_raw['status'],
$GPS_this_GPRMC_raw['latitude'],
$GPS_this_GPRMC_raw['latitude_direction'],
$GPS_this_GPRMC_raw['longitude'],
$GPS_this_GPRMC_raw['longitude_direction'],
$GPS_this_GPRMC_raw['knots'],
$GPS_this_GPRMC_raw['angle'],
$GPS_this_GPRMC_raw['datestamp'],
$GPS_this_GPRMC_raw['variation'],
$GPS_this_GPRMC_raw['variation_direction'],
$dummy,
$GPS_this_GPRMC_raw['checksum'],
) = $matches;
$GPS_this_GPRMC['raw'] = $GPS_this_GPRMC_raw;
$hour = substr($GPS_this_GPRMC['raw']['timestamp'], 0, 2);
$minute = substr($GPS_this_GPRMC['raw']['timestamp'], 2, 2);
$second = substr($GPS_this_GPRMC['raw']['timestamp'], 4, 2);
$ms = substr($GPS_this_GPRMC['raw']['timestamp'], 6); // may contain decimal seconds
$day = substr($GPS_this_GPRMC['raw']['datestamp'], 0, 2);
$month = substr($GPS_this_GPRMC['raw']['datestamp'], 2, 2);
$year = (int) substr($GPS_this_GPRMC['raw']['datestamp'], 4, 2);
$year += (($year > 90) ? 1900 : 2000); // complete lack of foresight: datestamps are stored with 2-digit years, take best guess
$GPS_this_GPRMC['timestamp'] = $year.'-'.$month.'-'.$day.' '.$hour.':'.$minute.':'.$second.$ms;
$GPS_this_GPRMC['active'] = ($GPS_this_GPRMC['raw']['status'] == 'A'); // A=Active,V=Void
foreach (array('latitude','longitude') as $latlon) {
preg_match('#^([0-9]{1,3})([0-9]{2}\\.[0-9]+)$#', $GPS_this_GPRMC['raw'][$latlon], $matches);
list($dummy, $deg, $min) = $matches;
$GPS_this_GPRMC[$latlon] = $deg + ($min / 60);
}
$GPS_this_GPRMC['latitude'] *= (($GPS_this_GPRMC['raw']['latitude_direction'] == 'S') ? -1 : 1);
$GPS_this_GPRMC['longitude'] *= (($GPS_this_GPRMC['raw']['longitude_direction'] == 'W') ? -1 : 1);
$GPS_this_GPRMC['heading'] = $GPS_this_GPRMC['raw']['angle'];
$GPS_this_GPRMC['speed_knot'] = $GPS_this_GPRMC['raw']['knots'];
$GPS_this_GPRMC['speed_kmh'] = $GPS_this_GPRMC['raw']['knots'] * 1.852;
if ($GPS_this_GPRMC['raw']['variation']) {
$GPS_this_GPRMC['variation'] = $GPS_this_GPRMC['raw']['variation'];
$GPS_this_GPRMC['variation'] *= (($GPS_this_GPRMC['raw']['variation_direction'] == 'W') ? -1 : 1);
}
$atom_structure['gps_entries'][$key] = $GPS_this_GPRMC;
@$info['quicktime']['gps_track'][$GPS_this_GPRMC['timestamp']] = array(
'latitude' => (float) $GPS_this_GPRMC['latitude'],
'longitude' => (float) $GPS_this_GPRMC['longitude'],
'speed_kmh' => (float) $GPS_this_GPRMC['speed_kmh'],
'heading' => (float) $GPS_this_GPRMC['heading'],
);
} else {
$this->warning('Unhandled GPS format in "free" atom at offset '.$gps_pointer['offset']);
}
}
$this->fseek($previous_offset);
} else {
$this->warning('QuickTime atom "'.$atomname.'" is not mod-8 bytes long ('.$atomsize.' bytes) at offset '.$baseoffset);
}
} else {
$this->warning('QuickTime atom "'.$atomname.'" is zero bytes long at offset '.$baseoffset);
}
break;
case 'loci':// 3GP location (El Loco)
$loffset = 0;
$info['quicktime']['comments']['gps_flags'] = array( getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)));
$info['quicktime']['comments']['gps_lang'] = array( getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)));
$info['quicktime']['comments']['gps_location'] = array( $this->LociString(substr($atom_data, 6), $loffset));
$loci_data = substr($atom_data, 6 + $loffset);
$info['quicktime']['comments']['gps_role'] = array( getid3_lib::BigEndian2Int(substr($loci_data, 0, 1)));
$info['quicktime']['comments']['gps_longitude'] = array(getid3_lib::FixedPoint16_16(substr($loci_data, 1, 4)));
$info['quicktime']['comments']['gps_latitude'] = array(getid3_lib::FixedPoint16_16(substr($loci_data, 5, 4)));
$info['quicktime']['comments']['gps_altitude'] = array(getid3_lib::FixedPoint16_16(substr($loci_data, 9, 4)));
$info['quicktime']['comments']['gps_body'] = array( $this->LociString(substr($loci_data, 13 ), $loffset));
$info['quicktime']['comments']['gps_notes'] = array( $this->LociString(substr($loci_data, 13 + $loffset), $loffset));
break;
case 'chpl': // CHaPter List
// https://www.adobe.com/content/dam/Adobe/en/devnet/flv/pdfs/video_file_format_spec_v10.pdf
$chpl_version = getid3_lib::BigEndian2Int(substr($atom_data, 4, 1)); // Expected to be 0
$chpl_flags = getid3_lib::BigEndian2Int(substr($atom_data, 5, 3)); // Reserved, set to 0
$chpl_count = getid3_lib::BigEndian2Int(substr($atom_data, 8, 1));
$chpl_offset = 9;
for ($i = 0; $i < $chpl_count; $i++) {
if (($chpl_offset + 9) >= strlen($atom_data)) {
$this->warning('QuickTime chapter '.$i.' extends beyond end of "chpl" atom');
break;
}
$info['quicktime']['chapters'][$i]['timestamp'] = getid3_lib::BigEndian2Int(substr($atom_data, $chpl_offset, 8)) / 10000000; // timestamps are stored as 100-nanosecond units
$chpl_offset += 8;
$chpl_title_size = getid3_lib::BigEndian2Int(substr($atom_data, $chpl_offset, 1));
$chpl_offset += 1;
$info['quicktime']['chapters'][$i]['title'] = substr($atom_data, $chpl_offset, $chpl_title_size);
$chpl_offset += $chpl_title_size;
}
break;
case 'FIRM': // FIRMware version(?), seen on GoPro Hero4
$info['quicktime']['camera']['firmware'] = $atom_data;
break;
case 'CAME': // FIRMware version(?), seen on GoPro Hero4
$info['quicktime']['camera']['serial_hash'] = unpack('H*', $atom_data);
break;
case 'dscp':
case 'rcif':
// https://www.getid3.org/phpBB3/viewtopic.php?t=1908
if (substr($atom_data, 0, 7) == "\x00\x00\x00\x00\x55\xC4".'{') {
if ($json_decoded = @json_decode(rtrim(substr($atom_data, 6), "\x00"), true)) {
$info['quicktime']['camera'][$atomname] = $json_decoded;
if (($atomname == 'rcif') && isset($info['quicktime']['camera']['rcif']['wxcamera']['rotate'])) {
$info['video']['rotate'] = $info['quicktime']['video']['rotate'] = $info['quicktime']['camera']['rcif']['wxcamera']['rotate'];
}
} else {
$this->warning('Failed to JSON decode atom "'.$atomname.'"');
$atom_structure['data'] = $atom_data;
}
unset($json_decoded);
} else {
$this->warning('Expecting 55 C4 7B at start of atom "'.$atomname.'", found '.getid3_lib::PrintHexBytes(substr($atom_data, 4, 3)).' instead');
$atom_structure['data'] = $atom_data;
}
break;
case 'frea':
// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
// may contain "scra" (PreviewImage) and/or "thma" (ThumbnailImage)
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 4, $atomHierarchy, $ParseAllPossibleAtoms);
break;
case 'tima': // subatom to "frea"
// no idea what this does, the one sample file I've seen has a value of 0x00000027
$atom_structure['data'] = $atom_data;
break;
case 'ver ': // subatom to "frea"
// some kind of version number, the one sample file I've seen has a value of "3.00.073"
$atom_structure['data'] = $atom_data;
break;
case 'thma': // subatom to "frea" -- "ThumbnailImage"
// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
if (strlen($atom_data) > 0) {
$info['quicktime']['comments']['picture'][] = array('data'=>$atom_data, 'image_mime'=>'image/jpeg', 'description'=>'ThumbnailImage');
}
break;
case 'scra': // subatom to "frea" -- "PreviewImage"
// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
// but the only sample file I've seen has no useful data here
if (strlen($atom_data) > 0) {
$info['quicktime']['comments']['picture'][] = array('data'=>$atom_data, 'image_mime'=>'image/jpeg', 'description'=>'PreviewImage');
}
break;
case 'cdsc': // timed metadata reference
// A QuickTime movie can contain none, one, or several timed metadata tracks. Timed metadata tracks can refer to multiple tracks.
// Metadata tracks are linked to the tracks they describe using a track-reference of type 'cdsc'. The metadata track holds the 'cdsc' track reference.
$atom_structure['track_number'] = getid3_lib::BigEndian2Int($atom_data);
break;
// AVIF-related - https://docs.rs/avif-parse/0.13.2/src/avif_parse/boxes.rs.html
case 'pitm': // Primary ITeM
case 'iloc': // Item LOCation
case 'iinf': // Item INFo
case 'iref': // Image REFerence
case 'iprp': // Image PRoPerties
$this->error('AVIF files not currently supported');
$atom_structure['data'] = $atom_data;
break;
case 'tfdt': // Track Fragment base media Decode Time box
case 'tfhd': // Track Fragment HeaDer box
case 'mfhd': // Movie Fragment HeaDer box
case 'trun': // Track fragment RUN box
$this->error('fragmented mp4 files not currently supported');
$atom_structure['data'] = $atom_data;
break;
case 'mvex': // MoVie EXtends box
case 'pssh': // Protection System Specific Header box
case 'sidx': // Segment InDeX box
default:
$this->warning('Unknown QuickTime atom type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" ('.trim(getid3_lib::PrintHexBytes($atomname)).'), '.$atomsize.' bytes at offset '.$baseoffset);
$atom_structure['data'] = $atom_data;
break;
}
}
array_pop($atomHierarchy);
return $atom_structure;
}
/**
* @param string $atom_data
* @param int $baseoffset
* @param array $atomHierarchy
* @param bool $ParseAllPossibleAtoms
*
* @return array|false
*/
public function QuicktimeParseContainerAtom($atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
$atom_structure = array();
$subatomoffset = 0;
$subatomcounter = 0;
if ((strlen($atom_data) == 4) && (getid3_lib::BigEndian2Int($atom_data) == 0x00000000)) {
return false;
}
while ($subatomoffset < strlen($atom_data)) {
$subatomsize = getid3_lib::BigEndian2Int(substr($atom_data, $subatomoffset + 0, 4));
$subatomname = substr($atom_data, $subatomoffset + 4, 4);
$subatomdata = substr($atom_data, $subatomoffset + 8, $subatomsize - 8);
if ($subatomsize == 0) {
// Furthermore, for historical reasons the list of atoms is optionally
// terminated by a 32-bit integer set to 0. If you are writing a program
// to read user data atoms, you should allow for the terminating 0.
if (strlen($atom_data) > 12) {
$subatomoffset += 4;
continue;
}
break;
}
if (strlen($subatomdata) < ($subatomsize - 8)) {
// we don't have enough data to decode the subatom.
// this may be because we are refusing to parse large subatoms, or it may be because this atom had its size set too large
// so we passed in the start of a following atom incorrectly?
break;
}
$atom_structure[$subatomcounter++] = $this->QuicktimeParseAtom($subatomname, $subatomsize, $subatomdata, $baseoffset + $subatomoffset, $atomHierarchy, $ParseAllPossibleAtoms);
$subatomoffset += $subatomsize;
}
if (empty($atom_structure)) {
return false;
}
return $atom_structure;
}
/**
* @param string $data
* @param int $offset
*
* @return int
*/
public function quicktime_read_mp4_descr_length($data, &$offset) {
// http://libquicktime.sourcearchive.com/documentation/2:1.0.2plus-pdebian-2build1/esds_8c-source.html
$num_bytes = 0;
$length = 0;
do {
$b = ord(substr($data, $offset++, 1));
$length = ($length << 7) | ($b & 0x7F);
} while (($b & 0x80) && ($num_bytes++ < 4));
return $length;
}
/**
* @param int $languageid
*
* @return string
*/
public function QuicktimeLanguageLookup($languageid) {
// http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-34353
static $QuicktimeLanguageLookup = array();
if (empty($QuicktimeLanguageLookup)) {
$QuicktimeLanguageLookup[0] = 'English';
$QuicktimeLanguageLookup[1] = 'French';
$QuicktimeLanguageLookup[2] = 'German';
$QuicktimeLanguageLookup[3] = 'Italian';
$QuicktimeLanguageLookup[4] = 'Dutch';
$QuicktimeLanguageLookup[5] = 'Swedish';
$QuicktimeLanguageLookup[6] = 'Spanish';
$QuicktimeLanguageLookup[7] = 'Danish';
$QuicktimeLanguageLookup[8] = 'Portuguese';
$QuicktimeLanguageLookup[9] = 'Norwegian';
$QuicktimeLanguageLookup[10] = 'Hebrew';
$QuicktimeLanguageLookup[11] = 'Japanese';
$QuicktimeLanguageLookup[12] = 'Arabic';
$QuicktimeLanguageLookup[13] = 'Finnish';
$QuicktimeLanguageLookup[14] = 'Greek';
$QuicktimeLanguageLookup[15] = 'Icelandic';
$QuicktimeLanguageLookup[16] = 'Maltese';
$QuicktimeLanguageLookup[17] = 'Turkish';
$QuicktimeLanguageLookup[18] = 'Croatian';
$QuicktimeLanguageLookup[19] = 'Chinese (Traditional)';
$QuicktimeLanguageLookup[20] = 'Urdu';
$QuicktimeLanguageLookup[21] = 'Hindi';
$QuicktimeLanguageLookup[22] = 'Thai';
$QuicktimeLanguageLookup[23] = 'Korean';
$QuicktimeLanguageLookup[24] = 'Lithuanian';
$QuicktimeLanguageLookup[25] = 'Polish';
$QuicktimeLanguageLookup[26] = 'Hungarian';
$QuicktimeLanguageLookup[27] = 'Estonian';
$QuicktimeLanguageLookup[28] = 'Lettish';
$QuicktimeLanguageLookup[28] = 'Latvian';
$QuicktimeLanguageLookup[29] = 'Saamisk';
$QuicktimeLanguageLookup[29] = 'Lappish';
$QuicktimeLanguageLookup[30] = 'Faeroese';
$QuicktimeLanguageLookup[31] = 'Farsi';
$QuicktimeLanguageLookup[31] = 'Persian';
$QuicktimeLanguageLookup[32] = 'Russian';
$QuicktimeLanguageLookup[33] = 'Chinese (Simplified)';
$QuicktimeLanguageLookup[34] = 'Flemish';
$QuicktimeLanguageLookup[35] = 'Irish';
$QuicktimeLanguageLookup[36] = 'Albanian';
$QuicktimeLanguageLookup[37] = 'Romanian';
$QuicktimeLanguageLookup[38] = 'Czech';
$QuicktimeLanguageLookup[39] = 'Slovak';
$QuicktimeLanguageLookup[40] = 'Slovenian';
$QuicktimeLanguageLookup[41] = 'Yiddish';
$QuicktimeLanguageLookup[42] = 'Serbian';
$QuicktimeLanguageLookup[43] = 'Macedonian';
$QuicktimeLanguageLookup[44] = 'Bulgarian';
$QuicktimeLanguageLookup[45] = 'Ukrainian';
$QuicktimeLanguageLookup[46] = 'Byelorussian';
$QuicktimeLanguageLookup[47] = 'Uzbek';
$QuicktimeLanguageLookup[48] = 'Kazakh';
$QuicktimeLanguageLookup[49] = 'Azerbaijani';
$QuicktimeLanguageLookup[50] = 'AzerbaijanAr';
$QuicktimeLanguageLookup[51] = 'Armenian';
$QuicktimeLanguageLookup[52] = 'Georgian';
$QuicktimeLanguageLookup[53] = 'Moldavian';
$QuicktimeLanguageLookup[54] = 'Kirghiz';
$QuicktimeLanguageLookup[55] = 'Tajiki';
$QuicktimeLanguageLookup[56] = 'Turkmen';
$QuicktimeLanguageLookup[57] = 'Mongolian';
$QuicktimeLanguageLookup[58] = 'MongolianCyr';
$QuicktimeLanguageLookup[59] = 'Pashto';
$QuicktimeLanguageLookup[60] = 'Kurdish';
$QuicktimeLanguageLookup[61] = 'Kashmiri';
$QuicktimeLanguageLookup[62] = 'Sindhi';
$QuicktimeLanguageLookup[63] = 'Tibetan';
$QuicktimeLanguageLookup[64] = 'Nepali';
$QuicktimeLanguageLookup[65] = 'Sanskrit';
$QuicktimeLanguageLookup[66] = 'Marathi';
$QuicktimeLanguageLookup[67] = 'Bengali';
$QuicktimeLanguageLookup[68] = 'Assamese';
$QuicktimeLanguageLookup[69] = 'Gujarati';
$QuicktimeLanguageLookup[70] = 'Punjabi';
$QuicktimeLanguageLookup[71] = 'Oriya';
$QuicktimeLanguageLookup[72] = 'Malayalam';
$QuicktimeLanguageLookup[73] = 'Kannada';
$QuicktimeLanguageLookup[74] = 'Tamil';
$QuicktimeLanguageLookup[75] = 'Telugu';
$QuicktimeLanguageLookup[76] = 'Sinhalese';
$QuicktimeLanguageLookup[77] = 'Burmese';
$QuicktimeLanguageLookup[78] = 'Khmer';
$QuicktimeLanguageLookup[79] = 'Lao';
$QuicktimeLanguageLookup[80] = 'Vietnamese';
$QuicktimeLanguageLookup[81] = 'Indonesian';
$QuicktimeLanguageLookup[82] = 'Tagalog';
$QuicktimeLanguageLookup[83] = 'MalayRoman';
$QuicktimeLanguageLookup[84] = 'MalayArabic';
$QuicktimeLanguageLookup[85] = 'Amharic';
$QuicktimeLanguageLookup[86] = 'Tigrinya';
$QuicktimeLanguageLookup[87] = 'Galla';
$QuicktimeLanguageLookup[87] = 'Oromo';
$QuicktimeLanguageLookup[88] = 'Somali';
$QuicktimeLanguageLookup[89] = 'Swahili';
$QuicktimeLanguageLookup[90] = 'Ruanda';
$QuicktimeLanguageLookup[91] = 'Rundi';
$QuicktimeLanguageLookup[92] = 'Chewa';
$QuicktimeLanguageLookup[93] = 'Malagasy';
$QuicktimeLanguageLookup[94] = 'Esperanto';
$QuicktimeLanguageLookup[128] = 'Welsh';
$QuicktimeLanguageLookup[129] = 'Basque';
$QuicktimeLanguageLookup[130] = 'Catalan';
$QuicktimeLanguageLookup[131] = 'Latin';
$QuicktimeLanguageLookup[132] = 'Quechua';
$QuicktimeLanguageLookup[133] = 'Guarani';
$QuicktimeLanguageLookup[134] = 'Aymara';
$QuicktimeLanguageLookup[135] = 'Tatar';
$QuicktimeLanguageLookup[136] = 'Uighur';
$QuicktimeLanguageLookup[137] = 'Dzongkha';
$QuicktimeLanguageLookup[138] = 'JavaneseRom';
$QuicktimeLanguageLookup[32767] = 'Unspecified';
}
if (($languageid > 138) && ($languageid < 32767)) {
/*
ISO Language Codes - http://www.loc.gov/standards/iso639-2/php/code_list.php
Because the language codes specified by ISO 639-2/T are three characters long, they must be packed to fit into a 16-bit field.
The packing algorithm must map each of the three characters, which are always lowercase, into a 5-bit integer and then concatenate
these integers into the least significant 15 bits of a 16-bit integer, leaving the 16-bit integer's most significant bit set to zero.
One algorithm for performing this packing is to treat each ISO character as a 16-bit integer. Subtract 0x60 from the first character
and multiply by 2^10 (0x400), subtract 0x60 from the second character and multiply by 2^5 (0x20), subtract 0x60 from the third character,
and add the three 16-bit values. This will result in a single 16-bit value with the three codes correctly packed into the 15 least
significant bits and the most significant bit set to zero.
*/
$iso_language_id = '';
$iso_language_id .= chr((($languageid & 0x7C00) >> 10) + 0x60);
$iso_language_id .= chr((($languageid & 0x03E0) >> 5) + 0x60);
$iso_language_id .= chr((($languageid & 0x001F) >> 0) + 0x60);
$QuicktimeLanguageLookup[$languageid] = getid3_id3v2::LanguageLookup($iso_language_id);
}
return (isset($QuicktimeLanguageLookup[$languageid]) ? $QuicktimeLanguageLookup[$languageid] : 'invalid');
}
/**
* @param string $codecid
*
* @return string
*/
public function QuicktimeVideoCodecLookup($codecid) {
static $QuicktimeVideoCodecLookup = array();
if (empty($QuicktimeVideoCodecLookup)) {
$QuicktimeVideoCodecLookup['.SGI'] = 'SGI';
$QuicktimeVideoCodecLookup['3IV1'] = '3ivx MPEG-4 v1';
$QuicktimeVideoCodecLookup['3IV2'] = '3ivx MPEG-4 v2';
$QuicktimeVideoCodecLookup['3IVX'] = '3ivx MPEG-4';
$QuicktimeVideoCodecLookup['8BPS'] = 'Planar RGB';
$QuicktimeVideoCodecLookup['avc1'] = 'H.264/MPEG-4 AVC';
$QuicktimeVideoCodecLookup['avr '] = 'AVR-JPEG';
$QuicktimeVideoCodecLookup['b16g'] = '16Gray';
$QuicktimeVideoCodecLookup['b32a'] = '32AlphaGray';
$QuicktimeVideoCodecLookup['b48r'] = '48RGB';
$QuicktimeVideoCodecLookup['b64a'] = '64ARGB';
$QuicktimeVideoCodecLookup['base'] = 'Base';
$QuicktimeVideoCodecLookup['clou'] = 'Cloud';
$QuicktimeVideoCodecLookup['cmyk'] = 'CMYK';
$QuicktimeVideoCodecLookup['cvid'] = 'Cinepak';
$QuicktimeVideoCodecLookup['dmb1'] = 'OpenDML JPEG';
$QuicktimeVideoCodecLookup['dvc '] = 'DVC-NTSC';
$QuicktimeVideoCodecLookup['dvcp'] = 'DVC-PAL';
$QuicktimeVideoCodecLookup['dvpn'] = 'DVCPro-NTSC';
$QuicktimeVideoCodecLookup['dvpp'] = 'DVCPro-PAL';
$QuicktimeVideoCodecLookup['fire'] = 'Fire';
$QuicktimeVideoCodecLookup['flic'] = 'FLC';
$QuicktimeVideoCodecLookup['gif '] = 'GIF';
$QuicktimeVideoCodecLookup['h261'] = 'H261';
$QuicktimeVideoCodecLookup['h263'] = 'H263';
$QuicktimeVideoCodecLookup['hvc1'] = 'H.265/HEVC';
$QuicktimeVideoCodecLookup['IV41'] = 'Indeo4';
$QuicktimeVideoCodecLookup['jpeg'] = 'JPEG';
$QuicktimeVideoCodecLookup['kpcd'] = 'PhotoCD';
$QuicktimeVideoCodecLookup['mjpa'] = 'Motion JPEG-A';
$QuicktimeVideoCodecLookup['mjpb'] = 'Motion JPEG-B';
$QuicktimeVideoCodecLookup['msvc'] = 'Microsoft Video1';
$QuicktimeVideoCodecLookup['myuv'] = 'MPEG YUV420';
$QuicktimeVideoCodecLookup['path'] = 'Vector';
$QuicktimeVideoCodecLookup['png '] = 'PNG';
$QuicktimeVideoCodecLookup['PNTG'] = 'MacPaint';
$QuicktimeVideoCodecLookup['qdgx'] = 'QuickDrawGX';
$QuicktimeVideoCodecLookup['qdrw'] = 'QuickDraw';
$QuicktimeVideoCodecLookup['raw '] = 'RAW';
$QuicktimeVideoCodecLookup['ripl'] = 'WaterRipple';
$QuicktimeVideoCodecLookup['rpza'] = 'Video';
$QuicktimeVideoCodecLookup['smc '] = 'Graphics';
$QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 1';
$QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 3';
$QuicktimeVideoCodecLookup['syv9'] = 'Sorenson YUV9';
$QuicktimeVideoCodecLookup['tga '] = 'Targa';
$QuicktimeVideoCodecLookup['tiff'] = 'TIFF';
$QuicktimeVideoCodecLookup['WRAW'] = 'Windows RAW';
$QuicktimeVideoCodecLookup['WRLE'] = 'BMP';
$QuicktimeVideoCodecLookup['y420'] = 'YUV420';
$QuicktimeVideoCodecLookup['yuv2'] = 'ComponentVideo';
$QuicktimeVideoCodecLookup['yuvs'] = 'ComponentVideoUnsigned';
$QuicktimeVideoCodecLookup['yuvu'] = 'ComponentVideoSigned';
}
return (isset($QuicktimeVideoCodecLookup[$codecid]) ? $QuicktimeVideoCodecLookup[$codecid] : '');
}
/**
* @param string $codecid
*
* @return mixed|string
*/
public function QuicktimeAudioCodecLookup($codecid) {
static $QuicktimeAudioCodecLookup = array();
if (empty($QuicktimeAudioCodecLookup)) {
$QuicktimeAudioCodecLookup['.mp3'] = 'Fraunhofer MPEG Layer-III alias';
$QuicktimeAudioCodecLookup['aac '] = 'ISO/IEC 14496-3 AAC';
$QuicktimeAudioCodecLookup['agsm'] = 'Apple GSM 10:1';
$QuicktimeAudioCodecLookup['alac'] = 'Apple Lossless Audio Codec';
$QuicktimeAudioCodecLookup['alaw'] = 'A-law 2:1';
$QuicktimeAudioCodecLookup['conv'] = 'Sample Format';
$QuicktimeAudioCodecLookup['dvca'] = 'DV';
$QuicktimeAudioCodecLookup['dvi '] = 'DV 4:1';
$QuicktimeAudioCodecLookup['eqal'] = 'Frequency Equalizer';
$QuicktimeAudioCodecLookup['fl32'] = '32-bit Floating Point';
$QuicktimeAudioCodecLookup['fl64'] = '64-bit Floating Point';
$QuicktimeAudioCodecLookup['ima4'] = 'Interactive Multimedia Association 4:1';
$QuicktimeAudioCodecLookup['in24'] = '24-bit Integer';
$QuicktimeAudioCodecLookup['in32'] = '32-bit Integer';
$QuicktimeAudioCodecLookup['lpc '] = 'LPC 23:1';
$QuicktimeAudioCodecLookup['MAC3'] = 'Macintosh Audio Compression/Expansion (MACE) 3:1';
$QuicktimeAudioCodecLookup['MAC6'] = 'Macintosh Audio Compression/Expansion (MACE) 6:1';
$QuicktimeAudioCodecLookup['mixb'] = '8-bit Mixer';
$QuicktimeAudioCodecLookup['mixw'] = '16-bit Mixer';
$QuicktimeAudioCodecLookup['mp4a'] = 'ISO/IEC 14496-3 AAC';
$QuicktimeAudioCodecLookup['MS'."\x00\x02"] = 'Microsoft ADPCM';
$QuicktimeAudioCodecLookup['MS'."\x00\x11"] = 'DV IMA';
$QuicktimeAudioCodecLookup['MS'."\x00\x55"] = 'Fraunhofer MPEG Layer III';
$QuicktimeAudioCodecLookup['NONE'] = 'No Encoding';
$QuicktimeAudioCodecLookup['Qclp'] = 'Qualcomm PureVoice';
$QuicktimeAudioCodecLookup['QDM2'] = 'QDesign Music 2';
$QuicktimeAudioCodecLookup['QDMC'] = 'QDesign Music 1';
$QuicktimeAudioCodecLookup['ratb'] = '8-bit Rate';
$QuicktimeAudioCodecLookup['ratw'] = '16-bit Rate';
$QuicktimeAudioCodecLookup['raw '] = 'raw PCM';
$QuicktimeAudioCodecLookup['sour'] = 'Sound Source';
$QuicktimeAudioCodecLookup['sowt'] = 'signed/two\'s complement (Little Endian)';
$QuicktimeAudioCodecLookup['str1'] = 'Iomega MPEG layer II';
$QuicktimeAudioCodecLookup['str2'] = 'Iomega MPEG *layer II';
$QuicktimeAudioCodecLookup['str3'] = 'Iomega MPEG **layer II';
$QuicktimeAudioCodecLookup['str4'] = 'Iomega MPEG ***layer II';
$QuicktimeAudioCodecLookup['twos'] = 'signed/two\'s complement (Big Endian)';
$QuicktimeAudioCodecLookup['ulaw'] = 'mu-law 2:1';
}
return (isset($QuicktimeAudioCodecLookup[$codecid]) ? $QuicktimeAudioCodecLookup[$codecid] : '');
}
/**
* @param string $compressionid
*
* @return string
*/
public function QuicktimeDCOMLookup($compressionid) {
static $QuicktimeDCOMLookup = array();
if (empty($QuicktimeDCOMLookup)) {
$QuicktimeDCOMLookup['zlib'] = 'ZLib Deflate';
$QuicktimeDCOMLookup['adec'] = 'Apple Compression';
}
return (isset($QuicktimeDCOMLookup[$compressionid]) ? $QuicktimeDCOMLookup[$compressionid] : '');
}
/**
* @param int $colordepthid
*
* @return string
*/
public function QuicktimeColorNameLookup($colordepthid) {
static $QuicktimeColorNameLookup = array();
if (empty($QuicktimeColorNameLookup)) {
$QuicktimeColorNameLookup[1] = '2-color (monochrome)';
$QuicktimeColorNameLookup[2] = '4-color';
$QuicktimeColorNameLookup[4] = '16-color';
$QuicktimeColorNameLookup[8] = '256-color';
$QuicktimeColorNameLookup[16] = 'thousands (16-bit color)';
$QuicktimeColorNameLookup[24] = 'millions (24-bit color)';
$QuicktimeColorNameLookup[32] = 'millions+ (32-bit color)';
$QuicktimeColorNameLookup[33] = 'black & white';
$QuicktimeColorNameLookup[34] = '4-gray';
$QuicktimeColorNameLookup[36] = '16-gray';
$QuicktimeColorNameLookup[40] = '256-gray';
}
return (isset($QuicktimeColorNameLookup[$colordepthid]) ? $QuicktimeColorNameLookup[$colordepthid] : 'invalid');
}
/**
* @param int $stik
*
* @return string
*/
public function QuicktimeSTIKLookup($stik) {
static $QuicktimeSTIKLookup = array();
if (empty($QuicktimeSTIKLookup)) {
$QuicktimeSTIKLookup[0] = 'Movie';
$QuicktimeSTIKLookup[1] = 'Normal';
$QuicktimeSTIKLookup[2] = 'Audiobook';
$QuicktimeSTIKLookup[5] = 'Whacked Bookmark';
$QuicktimeSTIKLookup[6] = 'Music Video';
$QuicktimeSTIKLookup[9] = 'Short Film';
$QuicktimeSTIKLookup[10] = 'TV Show';
$QuicktimeSTIKLookup[11] = 'Booklet';
$QuicktimeSTIKLookup[14] = 'Ringtone';
$QuicktimeSTIKLookup[21] = 'Podcast';
}
return (isset($QuicktimeSTIKLookup[$stik]) ? $QuicktimeSTIKLookup[$stik] : 'invalid');
}
/**
* @param int $audio_profile_id
*
* @return string
*/
public function QuicktimeIODSaudioProfileName($audio_profile_id) {
static $QuicktimeIODSaudioProfileNameLookup = array();
if (empty($QuicktimeIODSaudioProfileNameLookup)) {
$QuicktimeIODSaudioProfileNameLookup = array(
0x00 => 'ISO Reserved (0x00)',
0x01 => 'Main Audio Profile @ Level 1',
0x02 => 'Main Audio Profile @ Level 2',
0x03 => 'Main Audio Profile @ Level 3',
0x04 => 'Main Audio Profile @ Level 4',
0x05 => 'Scalable Audio Profile @ Level 1',
0x06 => 'Scalable Audio Profile @ Level 2',
0x07 => 'Scalable Audio Profile @ Level 3',
0x08 => 'Scalable Audio Profile @ Level 4',
0x09 => 'Speech Audio Profile @ Level 1',
0x0A => 'Speech Audio Profile @ Level 2',
0x0B => 'Synthetic Audio Profile @ Level 1',
0x0C => 'Synthetic Audio Profile @ Level 2',
0x0D => 'Synthetic Audio Profile @ Level 3',
0x0E => 'High Quality Audio Profile @ Level 1',
0x0F => 'High Quality Audio Profile @ Level 2',
0x10 => 'High Quality Audio Profile @ Level 3',
0x11 => 'High Quality Audio Profile @ Level 4',
0x12 => 'High Quality Audio Profile @ Level 5',
0x13 => 'High Quality Audio Profile @ Level 6',
0x14 => 'High Quality Audio Profile @ Level 7',
0x15 => 'High Quality Audio Profile @ Level 8',
0x16 => 'Low Delay Audio Profile @ Level 1',
0x17 => 'Low Delay Audio Profile @ Level 2',
0x18 => 'Low Delay Audio Profile @ Level 3',
0x19 => 'Low Delay Audio Profile @ Level 4',
0x1A => 'Low Delay Audio Profile @ Level 5',
0x1B => 'Low Delay Audio Profile @ Level 6',
0x1C => 'Low Delay Audio Profile @ Level 7',
0x1D => 'Low Delay Audio Profile @ Level 8',
0x1E => 'Natural Audio Profile @ Level 1',
0x1F => 'Natural Audio Profile @ Level 2',
0x20 => 'Natural Audio Profile @ Level 3',
0x21 => 'Natural Audio Profile @ Level 4',
0x22 => 'Mobile Audio Internetworking Profile @ Level 1',
0x23 => 'Mobile Audio Internetworking Profile @ Level 2',
0x24 => 'Mobile Audio Internetworking Profile @ Level 3',
0x25 => 'Mobile Audio Internetworking Profile @ Level 4',
0x26 => 'Mobile Audio Internetworking Profile @ Level 5',
0x27 => 'Mobile Audio Internetworking Profile @ Level 6',
0x28 => 'AAC Profile @ Level 1',
0x29 => 'AAC Profile @ Level 2',
0x2A => 'AAC Profile @ Level 4',
0x2B => 'AAC Profile @ Level 5',
0x2C => 'High Efficiency AAC Profile @ Level 2',
0x2D => 'High Efficiency AAC Profile @ Level 3',
0x2E => 'High Efficiency AAC Profile @ Level 4',
0x2F => 'High Efficiency AAC Profile @ Level 5',
0xFE => 'Not part of MPEG-4 audio profiles',
0xFF => 'No audio capability required',
);
}
return (isset($QuicktimeIODSaudioProfileNameLookup[$audio_profile_id]) ? $QuicktimeIODSaudioProfileNameLookup[$audio_profile_id] : 'ISO Reserved / User Private');
}
/**
* @param int $video_profile_id
*
* @return string
*/
public function QuicktimeIODSvideoProfileName($video_profile_id) {
static $QuicktimeIODSvideoProfileNameLookup = array();
if (empty($QuicktimeIODSvideoProfileNameLookup)) {
$QuicktimeIODSvideoProfileNameLookup = array(
0x00 => 'Reserved (0x00) Profile',
0x01 => 'Simple Profile @ Level 1',
0x02 => 'Simple Profile @ Level 2',
0x03 => 'Simple Profile @ Level 3',
0x08 => 'Simple Profile @ Level 0',
0x10 => 'Simple Scalable Profile @ Level 0',
0x11 => 'Simple Scalable Profile @ Level 1',
0x12 => 'Simple Scalable Profile @ Level 2',
0x15 => 'AVC/H264 Profile',
0x21 => 'Core Profile @ Level 1',
0x22 => 'Core Profile @ Level 2',
0x32 => 'Main Profile @ Level 2',
0x33 => 'Main Profile @ Level 3',
0x34 => 'Main Profile @ Level 4',
0x42 => 'N-bit Profile @ Level 2',
0x51 => 'Scalable Texture Profile @ Level 1',
0x61 => 'Simple Face Animation Profile @ Level 1',
0x62 => 'Simple Face Animation Profile @ Level 2',
0x63 => 'Simple FBA Profile @ Level 1',
0x64 => 'Simple FBA Profile @ Level 2',
0x71 => 'Basic Animated Texture Profile @ Level 1',
0x72 => 'Basic Animated Texture Profile @ Level 2',
0x81 => 'Hybrid Profile @ Level 1',
0x82 => 'Hybrid Profile @ Level 2',
0x91 => 'Advanced Real Time Simple Profile @ Level 1',
0x92 => 'Advanced Real Time Simple Profile @ Level 2',
0x93 => 'Advanced Real Time Simple Profile @ Level 3',
0x94 => 'Advanced Real Time Simple Profile @ Level 4',
0xA1 => 'Core Scalable Profile @ Level1',
0xA2 => 'Core Scalable Profile @ Level2',
0xA3 => 'Core Scalable Profile @ Level3',
0xB1 => 'Advanced Coding Efficiency Profile @ Level 1',
0xB2 => 'Advanced Coding Efficiency Profile @ Level 2',
0xB3 => 'Advanced Coding Efficiency Profile @ Level 3',
0xB4 => 'Advanced Coding Efficiency Profile @ Level 4',
0xC1 => 'Advanced Core Profile @ Level 1',
0xC2 => 'Advanced Core Profile @ Level 2',
0xD1 => 'Advanced Scalable Texture @ Level1',
0xD2 => 'Advanced Scalable Texture @ Level2',
0xE1 => 'Simple Studio Profile @ Level 1',
0xE2 => 'Simple Studio Profile @ Level 2',
0xE3 => 'Simple Studio Profile @ Level 3',
0xE4 => 'Simple Studio Profile @ Level 4',
0xE5 => 'Core Studio Profile @ Level 1',
0xE6 => 'Core Studio Profile @ Level 2',
0xE7 => 'Core Studio Profile @ Level 3',
0xE8 => 'Core Studio Profile @ Level 4',
0xF0 => 'Advanced Simple Profile @ Level 0',
0xF1 => 'Advanced Simple Profile @ Level 1',
0xF2 => 'Advanced Simple Profile @ Level 2',
0xF3 => 'Advanced Simple Profile @ Level 3',
0xF4 => 'Advanced Simple Profile @ Level 4',
0xF5 => 'Advanced Simple Profile @ Level 5',
0xF7 => 'Advanced Simple Profile @ Level 3b',
0xF8 => 'Fine Granularity Scalable Profile @ Level 0',
0xF9 => 'Fine Granularity Scalable Profile @ Level 1',
0xFA => 'Fine Granularity Scalable Profile @ Level 2',
0xFB => 'Fine Granularity Scalable Profile @ Level 3',
0xFC => 'Fine Granularity Scalable Profile @ Level 4',
0xFD => 'Fine Granularity Scalable Profile @ Level 5',
0xFE => 'Not part of MPEG-4 Visual profiles',
0xFF => 'No visual capability required',
);
}
return (isset($QuicktimeIODSvideoProfileNameLookup[$video_profile_id]) ? $QuicktimeIODSvideoProfileNameLookup[$video_profile_id] : 'ISO Reserved Profile');
}
/**
* @param int $rtng
*
* @return string
*/
public function QuicktimeContentRatingLookup($rtng) {
static $QuicktimeContentRatingLookup = array();
if (empty($QuicktimeContentRatingLookup)) {
$QuicktimeContentRatingLookup[0] = 'None';
$QuicktimeContentRatingLookup[1] = 'Explicit';
$QuicktimeContentRatingLookup[2] = 'Clean';
$QuicktimeContentRatingLookup[4] = 'Explicit (old)';
}
return (isset($QuicktimeContentRatingLookup[$rtng]) ? $QuicktimeContentRatingLookup[$rtng] : 'invalid');
}
/**
* @param int $akid
*
* @return string
*/
public function QuicktimeStoreAccountTypeLookup($akid) {
static $QuicktimeStoreAccountTypeLookup = array();
if (empty($QuicktimeStoreAccountTypeLookup)) {
$QuicktimeStoreAccountTypeLookup[0] = 'iTunes';
$QuicktimeStoreAccountTypeLookup[1] = 'AOL';
}
return (isset($QuicktimeStoreAccountTypeLookup[$akid]) ? $QuicktimeStoreAccountTypeLookup[$akid] : 'invalid');
}
/**
* @param int $sfid
*
* @return string
*/
public function QuicktimeStoreFrontCodeLookup($sfid) {
static $QuicktimeStoreFrontCodeLookup = array();
if (empty($QuicktimeStoreFrontCodeLookup)) {
$QuicktimeStoreFrontCodeLookup[143460] = 'Australia';
$QuicktimeStoreFrontCodeLookup[143445] = 'Austria';
$QuicktimeStoreFrontCodeLookup[143446] = 'Belgium';
$QuicktimeStoreFrontCodeLookup[143455] = 'Canada';
$QuicktimeStoreFrontCodeLookup[143458] = 'Denmark';
$QuicktimeStoreFrontCodeLookup[143447] = 'Finland';
$QuicktimeStoreFrontCodeLookup[143442] = 'France';
$QuicktimeStoreFrontCodeLookup[143443] = 'Germany';
$QuicktimeStoreFrontCodeLookup[143448] = 'Greece';
$QuicktimeStoreFrontCodeLookup[143449] = 'Ireland';
$QuicktimeStoreFrontCodeLookup[143450] = 'Italy';
$QuicktimeStoreFrontCodeLookup[143462] = 'Japan';
$QuicktimeStoreFrontCodeLookup[143451] = 'Luxembourg';
$QuicktimeStoreFrontCodeLookup[143452] = 'Netherlands';
$QuicktimeStoreFrontCodeLookup[143461] = 'New Zealand';
$QuicktimeStoreFrontCodeLookup[143457] = 'Norway';
$QuicktimeStoreFrontCodeLookup[143453] = 'Portugal';
$QuicktimeStoreFrontCodeLookup[143454] = 'Spain';
$QuicktimeStoreFrontCodeLookup[143456] = 'Sweden';
$QuicktimeStoreFrontCodeLookup[143459] = 'Switzerland';
$QuicktimeStoreFrontCodeLookup[143444] = 'United Kingdom';
$QuicktimeStoreFrontCodeLookup[143441] = 'United States';
}
return (isset($QuicktimeStoreFrontCodeLookup[$sfid]) ? $QuicktimeStoreFrontCodeLookup[$sfid] : 'invalid');
}
/**
* @param string $keyname
* @param string|array $data
* @param string $boxname
*
* @return bool
*/
public function CopyToAppropriateCommentsSection($keyname, $data, $boxname='') {
static $handyatomtranslatorarray = array();
if (empty($handyatomtranslatorarray)) {
// http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
// http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt
// http://atomicparsley.sourceforge.net/mpeg-4files.html
// https://code.google.com/p/mp4v2/wiki/iTunesMetadata
$handyatomtranslatorarray["\xA9".'alb'] = 'album'; // iTunes 4.0
$handyatomtranslatorarray["\xA9".'ART'] = 'artist';
$handyatomtranslatorarray["\xA9".'art'] = 'artist'; // iTunes 4.0
$handyatomtranslatorarray["\xA9".'aut'] = 'author';
$handyatomtranslatorarray["\xA9".'cmt'] = 'comment'; // iTunes 4.0
$handyatomtranslatorarray["\xA9".'com'] = 'comment';
$handyatomtranslatorarray["\xA9".'cpy'] = 'copyright';
$handyatomtranslatorarray["\xA9".'day'] = 'creation_date'; // iTunes 4.0
$handyatomtranslatorarray["\xA9".'dir'] = 'director';
$handyatomtranslatorarray["\xA9".'ed1'] = 'edit1';
$handyatomtranslatorarray["\xA9".'ed2'] = 'edit2';
$handyatomtranslatorarray["\xA9".'ed3'] = 'edit3';
$handyatomtranslatorarray["\xA9".'ed4'] = 'edit4';
$handyatomtranslatorarray["\xA9".'ed5'] = 'edit5';
$handyatomtranslatorarray["\xA9".'ed6'] = 'edit6';
$handyatomtranslatorarray["\xA9".'ed7'] = 'edit7';
$handyatomtranslatorarray["\xA9".'ed8'] = 'edit8';
$handyatomtranslatorarray["\xA9".'ed9'] = 'edit9';
$handyatomtranslatorarray["\xA9".'enc'] = 'encoded_by';
$handyatomtranslatorarray["\xA9".'fmt'] = 'format';
$handyatomtranslatorarray["\xA9".'gen'] = 'genre'; // iTunes 4.0
$handyatomtranslatorarray["\xA9".'grp'] = 'grouping'; // iTunes 4.2
$handyatomtranslatorarray["\xA9".'hst'] = 'host_computer';
$handyatomtranslatorarray["\xA9".'inf'] = 'information';
$handyatomtranslatorarray["\xA9".'lyr'] = 'lyrics'; // iTunes 5.0
$handyatomtranslatorarray["\xA9".'mak'] = 'make';
$handyatomtranslatorarray["\xA9".'mod'] = 'model';
$handyatomtranslatorarray["\xA9".'nam'] = 'title'; // iTunes 4.0
$handyatomtranslatorarray["\xA9".'ope'] = 'composer';
$handyatomtranslatorarray["\xA9".'prd'] = 'producer';
$handyatomtranslatorarray["\xA9".'PRD'] = 'product';
$handyatomtranslatorarray["\xA9".'prf'] = 'performers';
$handyatomtranslatorarray["\xA9".'req'] = 'system_requirements';
$handyatomtranslatorarray["\xA9".'src'] = 'source_credit';
$handyatomtranslatorarray["\xA9".'swr'] = 'software';
$handyatomtranslatorarray["\xA9".'too'] = 'encoding_tool'; // iTunes 4.0
$handyatomtranslatorarray["\xA9".'trk'] = 'track_number';
$handyatomtranslatorarray["\xA9".'url'] = 'url';
$handyatomtranslatorarray["\xA9".'wrn'] = 'warning';
$handyatomtranslatorarray["\xA9".'wrt'] = 'composer';
$handyatomtranslatorarray['aART'] = 'album_artist';
$handyatomtranslatorarray['apID'] = 'purchase_account';
$handyatomtranslatorarray['catg'] = 'category'; // iTunes 4.9
$handyatomtranslatorarray['covr'] = 'picture'; // iTunes 4.0
$handyatomtranslatorarray['cpil'] = 'compilation'; // iTunes 4.0
$handyatomtranslatorarray['cprt'] = 'copyright'; // iTunes 4.0?
$handyatomtranslatorarray['desc'] = 'description'; // iTunes 5.0
$handyatomtranslatorarray['disk'] = 'disc_number'; // iTunes 4.0
$handyatomtranslatorarray['egid'] = 'episode_guid'; // iTunes 4.9
$handyatomtranslatorarray['gnre'] = 'genre'; // iTunes 4.0
$handyatomtranslatorarray['hdvd'] = 'hd_video'; // iTunes 4.0
$handyatomtranslatorarray['ldes'] = 'description_long'; //
$handyatomtranslatorarray['keyw'] = 'keyword'; // iTunes 4.9
$handyatomtranslatorarray['pcst'] = 'podcast'; // iTunes 4.9
$handyatomtranslatorarray['pgap'] = 'gapless_playback'; // iTunes 7.0
$handyatomtranslatorarray['purd'] = 'purchase_date'; // iTunes 6.0.2
$handyatomtranslatorarray['purl'] = 'podcast_url'; // iTunes 4.9
$handyatomtranslatorarray['rtng'] = 'rating'; // iTunes 4.0
$handyatomtranslatorarray['soaa'] = 'sort_album_artist'; //
$handyatomtranslatorarray['soal'] = 'sort_album'; //
$handyatomtranslatorarray['soar'] = 'sort_artist'; //
$handyatomtranslatorarray['soco'] = 'sort_composer'; //
$handyatomtranslatorarray['sonm'] = 'sort_title'; //
$handyatomtranslatorarray['sosn'] = 'sort_show'; //
$handyatomtranslatorarray['stik'] = 'stik'; // iTunes 4.9
$handyatomtranslatorarray['tmpo'] = 'bpm'; // iTunes 4.0
$handyatomtranslatorarray['trkn'] = 'track_number'; // iTunes 4.0
$handyatomtranslatorarray['tven'] = 'tv_episode_id'; //
$handyatomtranslatorarray['tves'] = 'tv_episode'; // iTunes 6.0
$handyatomtranslatorarray['tvnn'] = 'tv_network_name'; // iTunes 6.0
$handyatomtranslatorarray['tvsh'] = 'tv_show_name'; // iTunes 6.0
$handyatomtranslatorarray['tvsn'] = 'tv_season'; // iTunes 6.0
// boxnames:
/*
$handyatomtranslatorarray['iTunSMPB'] = 'iTunSMPB';
$handyatomtranslatorarray['iTunNORM'] = 'iTunNORM';
$handyatomtranslatorarray['Encoding Params'] = 'Encoding Params';
$handyatomtranslatorarray['replaygain_track_gain'] = 'replaygain_track_gain';
$handyatomtranslatorarray['replaygain_track_peak'] = 'replaygain_track_peak';
$handyatomtranslatorarray['replaygain_track_minmax'] = 'replaygain_track_minmax';
$handyatomtranslatorarray['MusicIP PUID'] = 'MusicIP PUID';
$handyatomtranslatorarray['MusicBrainz Artist Id'] = 'MusicBrainz Artist Id';
$handyatomtranslatorarray['MusicBrainz Album Id'] = 'MusicBrainz Album Id';
$handyatomtranslatorarray['MusicBrainz Album Artist Id'] = 'MusicBrainz Album Artist Id';
$handyatomtranslatorarray['MusicBrainz Track Id'] = 'MusicBrainz Track Id';
$handyatomtranslatorarray['MusicBrainz Disc Id'] = 'MusicBrainz Disc Id';
// http://age.hobba.nl/audio/tag_frame_reference.html
$handyatomtranslatorarray['PLAY_COUNTER'] = 'play_counter'; // Foobar2000 - https://www.getid3.org/phpBB3/viewtopic.php?t=1355
$handyatomtranslatorarray['MEDIATYPE'] = 'mediatype'; // Foobar2000 - https://www.getid3.org/phpBB3/viewtopic.php?t=1355
*/
}
$info = &$this->getid3->info;
$comment_key = '';
if ($boxname && ($boxname != $keyname)) {
$comment_key = (isset($handyatomtranslatorarray[$boxname]) ? $handyatomtranslatorarray[$boxname] : $boxname);
} elseif (isset($handyatomtranslatorarray[$keyname])) {
$comment_key = $handyatomtranslatorarray[$keyname];
}
if ($comment_key) {
if ($comment_key == 'picture') {
// already copied directly into [comments][picture] elsewhere, do not re-copy here
return true;
}
$gooddata = array($data);
if ($comment_key == 'genre') {
// some other taggers separate multiple genres with semicolon, e.g. "Heavy Metal;Thrash Metal;Metal"
$gooddata = explode(';', $data);
}
foreach ($gooddata as $data) {
if (!empty($info['quicktime']['comments'][$comment_key]) && in_array($data, $info['quicktime']['comments'][$comment_key], true)) {
// avoid duplicate copies of identical data
continue;
}
$info['quicktime']['comments'][$comment_key][] = $data;
}
}
return true;
}
/**
* @param string $lstring
* @param int $count
*
* @return string
*/
public function LociString($lstring, &$count) {
// Loci strings are UTF-8 or UTF-16 and null (x00/x0000) terminated. UTF-16 has a BOM
// Also need to return the number of bytes the string occupied so additional fields can be extracted
$len = strlen($lstring);
if ($len == 0) {
$count = 0;
return '';
}
if ($lstring[0] == "\x00") {
$count = 1;
return '';
}
// check for BOM
if (($len > 2) && ((($lstring[0] == "\xFE") && ($lstring[1] == "\xFF")) || (($lstring[0] == "\xFF") && ($lstring[1] == "\xFE")))) {
// UTF-16
if (preg_match('/(.*)\x00/', $lstring, $lmatches)) {
$count = strlen($lmatches[1]) * 2 + 2; //account for 2 byte characters and trailing \x0000
return getid3_lib::iconv_fallback_utf16_utf8($lmatches[1]);
} else {
return '';
}
}
// UTF-8
if (preg_match('/(.*)\x00/', $lstring, $lmatches)) {
$count = strlen($lmatches[1]) + 1; //account for trailing \x00
return $lmatches[1];
}
return '';
}
/**
* @param string $nullterminatedstring
*
* @return string
*/
public function NoNullString($nullterminatedstring) {
// remove the single null terminator on null terminated strings
if (substr($nullterminatedstring, strlen($nullterminatedstring) - 1, 1) === "\x00") {
return substr($nullterminatedstring, 0, strlen($nullterminatedstring) - 1);
}
return $nullterminatedstring;
}
/**
* @param string $pascalstring
*
* @return string
*/
public function Pascal2String($pascalstring) {
// Pascal strings have 1 unsigned byte at the beginning saying how many chars (1-255) are in the string
return substr($pascalstring, 1);
}
/**
* @param string $pascalstring
*
* @return string
*/
public function MaybePascal2String($pascalstring) {
// Pascal strings have 1 unsigned byte at the beginning saying how many chars (1-255) are in the string
// Check if string actually is in this format or written incorrectly, straight string, or null-terminated string
if (ord(substr($pascalstring, 0, 1)) == (strlen($pascalstring) - 1)) {
return substr($pascalstring, 1);
} elseif (substr($pascalstring, -1, 1) == "\x00") {
// appears to be null-terminated instead of Pascal-style
return substr($pascalstring, 0, -1);
}
return $pascalstring;
}
/**
* Helper functions for m4b audiobook chapters
* code by Steffen Hartmann 2015-Nov-08.
*
* @param array $info
* @param string $tag
* @param string $history
* @param array $result
*/
public function search_tag_by_key($info, $tag, $history, &$result) {
foreach ($info as $key => $value) {
$key_history = $history.'/'.$key;
if ($key === $tag) {
$result[] = array($key_history, $info);
} else {
if (is_array($value)) {
$this->search_tag_by_key($value, $tag, $key_history, $result);
}
}
}
}
/**
* @param array $info
* @param string $k
* @param string $v
* @param string $history
* @param array $result
*/
public function search_tag_by_pair($info, $k, $v, $history, &$result) {
foreach ($info as $key => $value) {
$key_history = $history.'/'.$key;
if (($key === $k) && ($value === $v)) {
$result[] = array($key_history, $info);
} else {
if (is_array($value)) {
$this->search_tag_by_pair($value, $k, $v, $key_history, $result);
}
}
}
}
/**
* @param array $info
*
* @return array
*/
public function quicktime_time_to_sample_table($info) {
$res = array();
$this->search_tag_by_pair($info['quicktime']['moov'], 'name', 'stbl', 'quicktime/moov', $res);
foreach ($res as $value) {
$stbl_res = array();
$this->search_tag_by_pair($value[1], 'data_format', 'text', $value[0], $stbl_res);
if (count($stbl_res) > 0) {
$stts_res = array();
$this->search_tag_by_key($value[1], 'time_to_sample_table', $value[0], $stts_res);
if (count($stts_res) > 0) {
return $stts_res[0][1]['time_to_sample_table'];
}
}
}
return array();
}
/**
* @param array $info
*
* @return int
*/
public function quicktime_bookmark_time_scale($info) {
$time_scale = '';
$ts_prefix_len = 0;
$res = array();
$this->search_tag_by_pair($info['quicktime']['moov'], 'name', 'stbl', 'quicktime/moov', $res);
foreach ($res as $value) {
$stbl_res = array();
$this->search_tag_by_pair($value[1], 'data_format', 'text', $value[0], $stbl_res);
if (count($stbl_res) > 0) {
$ts_res = array();
$this->search_tag_by_key($info['quicktime']['moov'], 'time_scale', 'quicktime/moov', $ts_res);
foreach ($ts_res as $sub_value) {
$prefix = substr($sub_value[0], 0, -12);
if ((substr($stbl_res[0][0], 0, strlen($prefix)) === $prefix) && ($ts_prefix_len < strlen($prefix))) {
$time_scale = $sub_value[1]['time_scale'];
$ts_prefix_len = strlen($prefix);
}
}
}
}
return $time_scale;
}
/*
// END helper functions for m4b audiobook chapters
*/
}