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Файл: sys/inc/libs/getid3/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                          //
//                                                            ///
/////////////////////////////////////////////////////////////////

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
{

    public 
$ReturnAtomData        = true;
    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);

            
$atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
            
$atomname = substr($AtomHeader, 4, 4);

            
// 64-bit MOV patch by jlegateØktnc*com
            
if ($atomsize == 1) {
                
$atomsize = getid3_lib::BigEndian2Int($this->fread(8));
            }

            
$info['quicktime'][$atomname]['name']   = $atomname;
            
$info['quicktime'][$atomname]['size']   = $atomsize;
            
$info['quicktime'][$atomname]['offset'] = $offset;

            if ((
$offset + $atomsize) > $info['avdataend']) {
                
$this->error('Atom at offset '.$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.
                
break;
            }
            
$atomHierarchy = array();
            
$info['quicktime'][$atomname] = $this->QuicktimeParseAtom($atomname, $atomsize, $this->fread(min($atomsize, $atom_data_read_buffer_size)), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms);

            
$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 (!empty(
$info['quicktime']['comments']['chapters']) && is_array($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) {
                
$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)) {
                    @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
                        
$latitude = floatval(ltrim($lat_deg, '0').$lat_deg_dec);
                    } elseif (
strlen($lat_deg) == 4) {  // [+-]DDMM.M
                        
$latitude = floatval(ltrim(substr($lat_deg, 0, 2), '0')) + floatval(ltrim(substr($lat_deg, 2, 2), '0').$lat_deg_dec / 60);
                    } elseif (
strlen($lat_deg) == 6) {  // [+-]DDMMSS.S
                        
$latitude = floatval(ltrim(substr($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
                        
$longitude = floatval(ltrim($lon_deg, '0').$lon_deg_dec);
                    } elseif (
strlen($lon_deg) == 5) {  // [+-]DDDMM.M
                        
$longitude = floatval(ltrim(substr($lon_deg, 0, 2), '0')) + floatval(ltrim(substr($lon_deg, 2, 2), '0').$lon_deg_dec / 60);
                    } elseif (
strlen($lon_deg) == 7) {  // [+-]DDDMMSS.S
                        
$longitude = floatval(ltrim(substr($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
                        
$altitude = floatval(ltrim($alt_deg, '0').$alt_deg_dec);
                    } elseif (
strlen($alt_deg) == 5) {  // [+-]DDDMM.M
                        
$altitude = floatval(ltrim(substr($alt_deg, 0, 2), '0')) + floatval(ltrim(substr($alt_deg, 2, 2), '0').$alt_deg_dec / 60);
                    } elseif (
strlen($alt_deg) == 7) {  // [+-]DDDMMSS.S
                        
$altitude = floatval(ltrim(substr($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);
                    }

                    if (
$latitude !== false) {
                        
$info['quicktime']['comments']['gps_latitude'][]  = (($lat_sign == '-') ? -1 : 1) * floatval($latitude);
                    }
                    if (
$longitude !== false) {
                        
$info['quicktime']['comments']['gps_longitude'][] = (($lon_sign == '-') ? -1 : 1) * floatval($longitude);
                    }
                    if (
$altitude !== false) {
                        
$info['quicktime']['comments']['gps_altitude'][]  = (($alt_sign == '-') ? -1 : 1) * floatval($altitude);
                    }
                }
                if (
$latitude === false) {
                    
$this->warning('location.ISO6709 string not parsed correctly: "'.$ISO6709string.'", please submit as a bug');
                }
                break;
            }
        }

        if (!isset(
$info['bitrate']) && isset($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['hierarchy'] = implode(' ', $atomHierarchy);
        
$atom_structure['name']      = $atomname;
        
$atom_structure['size']      = $atomsize;
        
$atom_structure['offset']    = $baseoffset;
        if (
substr($atomname, 0, 3) == "x00x00x00") {
            
// 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 'trak': // TRAcK container atom
                
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 '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) == "x10xB5") {
                            
// 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 
"x10xB5":
                                        
$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';
                                                        }
                                                        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') {
                                                    
// 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';
                                                    }
                                                }
                                                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[0] = 'normal';
                    
$ptv_lookup[1] = 'double';
                    
$ptv_lookup[2] = 'half';
                    
$ptv_lookup[3] = 'full';
                    
$ptv_lookup[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);

                        
$atom_structure['sample_description_table'][$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 
"x00x00x00x00":
                                
// 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 
'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']  = (($atom_structure['sample_description_table'][$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']);
                                            
$info['quicktime']['video']['codec']               = (($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 ($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']         =      $this->Pascal2String(substr($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'];
                    }
                    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']);
                    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']);
                    
$info['quicktime']['time_scale']    = ((isset($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']);

                    
// 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) == "x00x00x00x08".'wide') {
                            
$mdat_offset += 8;
                        } elseif (
substr($atom_data, $mdat_offset, 8) == "x00x00x00x00".'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) == "x00x00x00x0Cx65x6Ex63x64x00x00x01x00") { // 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);
                        
$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 
'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':
                    
// http://www.sno.phy.queensu.ca/~phil/exiftool/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
                    // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
                    
if (preg_match('/^xFFxD8xFF/', $atom_data)) {
                        
$atom_structure['data'] = $atom_data;
                        
$atom_structure['image_mime'] = 'image/jpeg';
                        
$atom_structure['description'] = (($atomname == 'NCTH') ? 'Nikon Camera Thumbnail Image' : (($atomname == 'NCVW') ? 'Nikon Camera Preview Image' : '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 - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
                    
$atom_structure['data'] = $this->QuicktimeParseNikonNCTG($atom_data);
                    break;
                case 
'NCHD': // Nikon:MakerNoteVersion  - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
                
case 'NCDB': // Nikon                   - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
                
case 'CNCV': // Canon:CompressorVersion - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Canon.html
                    
$atom_structure['data'] = $atom_data;
                    break;

                case 
"x00x00x00x00":
                    
// some kind of metacontainer, may contain a big data dump such as:
                    // mdta keys 05 mdtacom.apple.quicktime.make (mdtacom.apple.quicktime.creationdate ,mdtacom.apple.quicktime.location.ISO6709 $mdtacom.apple.quicktime.software !mdtacom.apple.quicktime.model ilst 1D 01 15data 01DE10Apple 0 02 (data 01DE102011-05-11T17:54:04+0200 2 03 *data 01DE10+52.4936+013.3897+040.247/ 1D 04 15data 01DE104.3.1 05 18data 01DE10iPhone 4
                    // http://www.geocities.com/xhelmboyx/quicktime/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);
                    
$atom_structure['key_name'] = @$info['quicktime']['temp_meta_key_names'][$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 
'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();
                                    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;

                                    
$hour   = substr($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);
                                    
$year   = substr($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) == "x00x00x00x00x55xC4".'{') {
                        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');
                    }
                    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');
                    }
                    break;


                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  = false;
        
$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;
                }
                return 
$atom_structure;
            }
            
$atom_structure[$subatomcounter++] = $this->QuicktimeParseAtom($subatomname, $subatomsize, $subatomdata, $baseoffset + $subatomoffset, $atomHierarchy, $ParseAllPossibleAtoms);
            
$subatomoffset += $subatomsize;
        }
        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['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'."x00x02"] = 'Microsoft ADPCM';
            
$QuicktimeAudioCodecLookup['MS'."x00x11"] = 'DV IMA';
            
$QuicktimeAudioCodecLookup['MS'."x00x55"] = '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[2]  = 'Clean';
            
$QuicktimeContentRatingLookup[4]  = 'Explicit';
        }
        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 $atom_data
     *
     * @return array
     */
    
public function QuicktimeParseNikonNCTG($atom_data) {
        
// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
        // Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
        // Data is stored as records of:
        // * 4 bytes record type
        // * 2 bytes size of data field type:
        //     0x0001 = flag   (size field *= 1-byte)
        //     0x0002 = char   (size field *= 1-byte)
        //     0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
        //     0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
        //     0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
        //     0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
        //     0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
        // * 2 bytes data size field
        // * ? bytes data (string data may be null-padded; datestamp fields are in the format "2011:05:25 20:24:15")
        // all integers are stored BigEndian

        
$NCTGtagName = array(
            
0x00000001 => 'Make',
            
0x00000002 => 'Model',
            
0x00000003 => 'Software',
            
0x00000011 => 'CreateDate',
            
0x00000012 => 'DateTimeOriginal',
            
0x00000013 => 'FrameCount',
            
0x00000016 => 'FrameRate',
            
0x00000022 => 'FrameWidth',
            
0x00000023 => 'FrameHeight',
            
0x00000032 => 'AudioChannels',
            
0x00000033 => 'AudioBitsPerSample',
            
0x00000034 => 'AudioSampleRate',
            
0x02000001 => 'MakerNoteVersion',
            
0x02000005 => 'WhiteBalance',
            
0x0200000b => 'WhiteBalanceFineTune',
            
0x0200001e => 'ColorSpace',
            
0x02000023 => 'PictureControlData',
            
0x02000024 => 'WorldTime',
            
0x02000032 => 'UnknownInfo',
            
0x02000083 => 'LensType',
            
0x02000084 => 'Lens',
        );

        
$offset = 0;
        
$data = null;
        
$datalength = strlen($atom_data);
        
$parsed = array();
        while (
$offset < $datalength) {
            
$record_type       = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));  $offset += 4;
            
$data_size_type    = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
            
$data_size         = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
            switch (
$data_size_type) {
                case 
0x0001: // 0x0001 = flag   (size field *= 1-byte)
                    
$data = getid3_lib::BigEndian2Int(substr($atom_data, $offset, $data_size * 1));
                    
$offset += ($data_size * 1);
                    break;
                case 
0x0002: // 0x0002 = char   (size field *= 1-byte)
                    
$data = substr($atom_data, $offset, $data_size * 1);
                    
$offset += ($data_size * 1);
                    
$data = rtrim($data, "x00");
                    break;
                case 
0x0003: // 0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
                    
$data = '';
                    for (
$i = $data_size - 1; $i >= 0; $i--) {
                        
$data .= substr($atom_data, $offset + ($i * 2), 2);
                    }
                    
$data = getid3_lib::BigEndian2Int($data);
                    
$offset += ($data_size * 2);
                    break;
                case 
0x0004: // 0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
                    
$data = '';
                    for (
$i = $data_size - 1; $i >= 0; $i--) {
                        
$data .= substr($atom_data, $offset + ($i * 4), 4);
                    }
                    
$data = getid3_lib::BigEndian2Int($data);
                    
$offset += ($data_size * 4);
                    break;
                case 
0x0005: // 0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
                    
$data = array();
                    for (
$i = 0; $i < $data_size; $i++) {
                        
$numerator    = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 0, 4));
                        
$denomninator = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 4, 4));
                        if (
$denomninator == 0) {
                            
$data[$i] = false;
                        } else {
                            
$data[$i] = (double) $numerator / $denomninator;
                        }
                    }
                    
$offset += (8 * $data_size);
                    if (
count($data) == 1) {
                        
$data = $data[0];
                    }
                    break;
                case 
0x0007: // 0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
                    
$data = substr($atom_data, $offset, $data_size * 1);
                    
$offset += ($data_size * 1);
                    break;
                case 
0x0008: // 0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
                    
$data = substr($atom_data, $offset, $data_size * 2);
                    
$offset += ($data_size * 2);
                    break;
                default:
                    echo 
'QuicktimeParseNikonNCTG()::unknown $data_size_type: '.$data_size_type.'<br>';
                    break 
2;
            }

            switch (
$record_type) {
                case 
0x00000011: // CreateDate
                
case 0x00000012: // DateTimeOriginal
                    
$data = strtotime($data);
                    break;
                case 
0x0200001e: // ColorSpace
                    
switch ($data) {
                        case 
1:
                            
$data = 'sRGB';
                            break;
                        case 
2:
                            
$data = 'Adobe RGB';
                            break;
                    }
                    break;
                case 
0x02000023: // PictureControlData
                    
$PictureControlAdjust = array(0=>'default', 1=>'quick', 2=>'full');
                    
$FilterEffect = array(0x80=>'off', 0x81=>'yellow', 0x82=>'orange',    0x83=>'red', 0x84=>'green',  0xff=>'n/a');
                    
$ToningEffect = array(0x80=>'b&w', 0x81=>'sepia',  0x82=>'cyanotype', 0x83=>'red', 0x84=>'yellow', 0x85=>'green', 0x86=>'blue-green', 0x87=>'blue', 0x88=>'purple-blue', 0x89=>'red-purple', 0xff=>'n/a');
                    
$data = array(
                        
'PictureControlVersion'     =>                           substr($data,  0,  4),
                        
'PictureControlName'        =>                     rtrim(substr($data,  4, 20), "x00"),
                        
'PictureControlBase'        =>                     rtrim(substr($data, 24, 20), "x00"),
                        
//'?'                       =>                           substr($data, 44,  4),
                        
'PictureControlAdjust'      => $PictureControlAdjust[ord(substr($data, 48,  1))],
                        
'PictureControlQuickAdjust' =>                       ord(substr($data, 49,  1)),
                        
'Sharpness'                 =>                       ord(substr($data, 50,  1)),
                        
'Contrast'                  =>                       ord(substr($data, 51,  1)),
                        
'Brightness'                =>                       ord(substr($data, 52,  1)),
                        
'Saturation'                =>                       ord(substr($data, 53,  1)),
                        
'HueAdjustment'             =>                       ord(substr($data, 54,  1)),
                        
'FilterEffect'              =>         $FilterEffect[ord(substr($data, 55,  1))],
                        
'ToningEffect'              =>         $ToningEffect[ord(substr($data, 56,  1))],
                        
'ToningSaturation'          =>                       ord(substr($data, 57,  1)),
                    );
                    break;
                case 
0x02000024: // WorldTime
                    // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#WorldTime
                    // timezone is stored as offset from GMT in minutes
                    
$timezone = getid3_lib::BigEndian2Int(substr($data, 0, 2));
                    if (
$timezone & 0x8000) {
                        
$timezone = 0 - (0x10000 - $timezone);
                    }
                    
$timezone /= 60;

                    
$dst = (bool) getid3_lib::BigEndian2Int(substr($data, 2, 1));
                    switch (
getid3_lib::BigEndian2Int(substr($data, 3, 1))) {
                        case 
2:
                            
$datedisplayformat = 'D/M/Y'; break;
                        case 
1:
                            
$datedisplayformat = 'M/D/Y'; break;
                        case 
0:
                        default:
                            
$datedisplayformat = 'Y/M/D'; break;
                    }

                    
$data = array('timezone'=>floatval($timezone), 'dst'=>$dst, 'display'=>$datedisplayformat);
                    break;
                case 
0x02000083: // LensType
                    
$data = array(
                        
//'_'  => $data,
                        
'mf' => (bool) ($data & 0x01),
                        
'd'  => (bool) ($data & 0x02),
                        
'g'  => (bool) ($data & 0x04),
                        
'vr' => (bool) ($data & 0x08),
                    );
                    break;
            }
            
$tag_name = (isset($NCTGtagName[$record_type]) ? $NCTGtagName[$record_type] : '0x'.str_pad(dechex($record_type), 8, '0', STR_PAD_LEFT));
            
$parsed[$tag_name] = $data;
        }
        return 
$parsed;
    }

    
/**
     * @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 (
$comment_key == 'picture') {
                if (!
is_array($data)) {
                    
$image_mime = '';
                    if (
preg_match('#^x89x50x4Ex47x0Dx0Ax1Ax0A#', $data)) {
                        
$image_mime = 'image/png';
                    } elseif (
preg_match('#^xFFxD8xFF#', $data)) {
                        
$image_mime = 'image/jpeg';
                    } elseif (
preg_match('#^GIF#', $data)) {
                        
$image_mime = 'image/gif';
                    } elseif (
preg_match('#^BM#', $data)) {
                        
$image_mime = 'image/bmp';
                    }
                    
$data = array('data'=>$data, 'image_mime'=>$image_mime);
                }
            }
            
$gooddata = array($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) {
                
$info['quicktime']['comments'][$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);
    }


    
/**
     * 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
    */


}
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