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<?php
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/////////////////////////////////////////////////////////////////
/// 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 //
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/////////////////////////////////////////////////////////////////
// //
// 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;
}
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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
*/
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public $ParseAllPossibleAtoms = false;
/**
* @return bool
*/
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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) : $this->getid3->option_fread_buffer_size * 1024; // set read buffer to 25% of PHP memory limit (if one is specified), otherwise use option_fread_buffer_size [default: 32MB]
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while ($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');
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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.
$atom_size_extended_bytes = 0;
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$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($atom_size_extended_bytes));
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}
if (($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: '.$atomsize.' bytes)');
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return false;
}
if ($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;
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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] = $parsedAtomData;
}
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$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($info['quicktime']['comments']['chapters']) > 0)) {
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$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) {
$ISO6709parsed = array('latitude'=>false, 'longitude'=>false, 'altitude'=>false);
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if (preg_match('#^([\\+\\-])([0-9]{2}|[0-9]{4}|[0-9]{6})(\\.[0-9]+)?([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?(([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?)?/$#', $ISO6709string, $matches)) {
@list($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);
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} 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').$lat_deg_dec / 60);
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} elseif (strlen($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);
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}
if (strlen($lon_deg) == 3) { // [+-]DDD.D
$ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim($lon_deg, '0').$lon_deg_dec);
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} 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').$lon_deg_dec / 60);
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} elseif (strlen($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);
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}
if (strlen($alt_deg) == 3) { // [+-]DDD.D
$ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim($alt_deg, '0').$alt_deg_dec);
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} 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').$alt_deg_dec / 60);
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} elseif (strlen($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);
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}
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[$key]);
}
}
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}
}
if ($ISO6709parsed['latitude'] === false) {
$this->warning('location.ISO6709 string not parsed correctly: "'.$ISO6709string.'", please submit as a bug');
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}
break;
}
}
if (!isset($info['bitrate']) && !empty($info['playtime_seconds'])) {
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$info['bitrate'] = (($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'] - $info['audio']['bitrate'];
}
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if (!empty($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') {
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$info['fileformat'] = 'mp4';
if (empty($info['video']['resolution_x'])) {
$info['mime_type'] = 'audio/mp4';
unset($info['video']['dataformat']);
} else {
$info['mime_type'] = 'video/mp4';
}
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}
if (!$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']);
}
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return true;
}
/**
* @param string $atomname
* @param int $atomsize
* @param string $atom_data
* @param int $baseoffset
* @param array $atomHierarchy
* @param bool $ParseAllPossibleAtoms
*
* @return array|false
*/
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public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
// http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
// https://code.google.com/p/mp4v2/wiki/iTunesMetadata
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$info = &$this->getid3->info;
$atom_parent = end($atomHierarchy); // not array_pop($atomHierarchy); see https://www.getid3.org/phpBB3/viewtopic.php?t=1717
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array_push($atomHierarchy, $atomname);
$atom_structure = array();
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$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, $ParseAllPossibleAtoms);
break;
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case 'ilst': // Item LiST container atom
if ($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
$allnumericnames = true;
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foreach ($atom_structure['subatoms'] as $subatomarray) {
if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) {
$allnumericnames = false;
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break;
}
}
if ($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']);
}
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}
break;
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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
$isVideo = true;
break;
case 'mp4a':
// audio data
break;
}
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}
}
} elseif (isset($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 = $value_array2['sample_count'];
}
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}
}
}
if ($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;
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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'];
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}
} 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 + $boxsmallsize);
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}
} else {
while ($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);
cedric@yterium.com
a validé
break;
}
$atomoffset += $boxsize;
switch ($boxtype) {
case 'mean':
case 'name':
$atom_structure[$boxtype] = substr($boxdata, 4);
break;
cedric@yterium.com
a validé
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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);
brunobergot@gmail.com
a validé
}
cedric@yterium.com
a validé
}
break;
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a validé
}
break;
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a validé
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;
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a validé
}
cedric@yterium.com
a validé
}
}
}
$this->CopyToAppropriateCommentsSection($atomname, $atom_structure['data'], $atom_structure['name']);
break;
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a validé
case 'play': // auto-PLAY atom
$atom_structure['autoplay'] = (bool) getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
cedric@yterium.com
a validé
$info['quicktime']['autoplay'] = $atom_structure['autoplay'];
break;
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a validé
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;
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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;
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case 'name': //
case 'MCPS': // Media Cleaner PRo
case '@PRM': // adobe PReMiere version
case '@PRQ': // adobe PRemiere Quicktime version
$atom_structure['data'] = $atom_data;
break;
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a validé
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));
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a validé
$CompressedFileData = substr($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;
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a validé
case 'dcom': // Data COMpression atom
$atom_structure['compression_id'] = $atom_data;
$atom_structure['compression_text'] = $this->QuicktimeDCOMLookup($atom_data);
break;
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a validé
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);
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a validé
$atom_structure['reference_type_name'] = substr($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;
cedric@yterium.com
a validé
case 'alis':
$atom_structure['file_alias'] = substr($atom_data, 12);
break;
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a validé
case 'rsrc':
$atom_structure['resource_alias'] = substr($atom_data, 12);
break;
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a validé
default:
$atom_structure['data'] = substr($atom_data, 12);
break;
}
break;
cedric@yterium.com
a validé
case 'rmqu': // Reference Movie QUality atom
$atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);
break;
cedric@yterium.com
a validé
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;
cedric@yterium.com
a validé
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;
cedric@yterium.com
a validé
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;
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a validé
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));
cedric@yterium.com
a validé
$atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;
break;
cedric@yterium.com
a validé
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));
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a validé
$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;
cedric@yterium.com
a validé
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;
cedric@yterium.com
a validé
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));
cedric@yterium.com
a validé
// 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).' = '.$atom_structure['number_entries'].'), probably in error. Please report this to info@getid3.org referencing bug report #111');
}
}
cedric@yterium.com
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$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;
}
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$atom_structure['sample_description_table'][$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':
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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;
cedric@yterium.com
a validé
case 'qtvr':
$info['video']['dataformat'] = 'quicktimevr';
break;
cedric@yterium.com
a validé
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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:
$info['audio']['lossless'] = false;
break;
}
break;
}
break;
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default:
switch ($atom_structure['sample_description_table'][$i]['data_format']) {
case 'mp4s':
$info['fileformat'] = 'mp4';
break;
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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;
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case '3ivx':
case '3iv1':
case '3iv2':
$info['video']['dataformat'] = '3ivx';
break;
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case 'xvid':
$info['video']['dataformat'] = 'xvid';
break;
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case 'mp4v':
$info['video']['dataformat'] = 'mpeg4';
break;
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case 'divx':
case 'div1':
case 'div2':
case 'div3':
case 'div4':
case 'div5':
case 'div6':
$info['video']['dataformat'] = 'divx';
break;
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default:
// do nothing
break;
}
unset($atom_structure['sample_description_table'][$i]['data']);
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}