// // available at http://getid3.sourceforge.net // // or http://www.getid3.org // ///////////////////////////////////////////////////////////////// // 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; public function Analyze() { $info = &$this->getid3->info; $info['fileformat'] = 'quicktime'; $info['quicktime']['hinting'] = false; $info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $offset = 0; $atomcounter = 0; while ($offset < $info['avdataend']) { if (!getid3_lib::intValueSupported($offset)) { $info['error'][] = 'Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions'; break; } fseek($this->getid3->fp, $offset, SEEK_SET); $AtomHeader = fread($this->getid3->fp, 8); $atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4)); $atomname = substr($AtomHeader, 4, 4); // 64-bit MOV patch by jlegateØktnc*com if ($atomsize == 1) { $atomsize = getid3_lib::BigEndian2Int(fread($this->getid3->fp, 8)); } $info['quicktime'][$atomname]['name'] = $atomname; $info['quicktime'][$atomname]['size'] = $atomsize; $info['quicktime'][$atomname]['offset'] = $offset; if (($offset + $atomsize) > $info['avdataend']) { $info['error'][] = 'Atom at offset '.$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; } switch ($atomname) { case 'mdat': // Media DATa atom // 'mdat' contains the actual data for the audio/video if (($atomsize > 8) && (!isset($info['avdataend_tmp']) || ($info['quicktime'][$atomname]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) { $info['avdataoffset'] = $info['quicktime'][$atomname]['offset'] + 8; $OldAVDataEnd = $info['avdataend']; $info['avdataend'] = $info['quicktime'][$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(fread($this->getid3->fp, 4)))) { $getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false); if (!empty($getid3_temp->info['warning'])) { foreach ($getid3_temp->info['warning'] as $value) { $info['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); } 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 break; default: $atomHierarchy = array(); $info['quicktime'][$atomname] = $this->QuicktimeParseAtom($atomname, $atomsize, fread($this->getid3->fp, $atomsize), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms); break; } $offset += $atomsize; $atomcounter++; } if (!empty($info['avdataend_tmp'])) { // this value is assigned to a temp value and then erased because // otherwise any atoms beyond the 'mdat' atom would not get parsed $info['avdataend'] = $info['avdataend_tmp']; unset($info['avdataend_tmp']); } if (!isset($info['bitrate']) && isset($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['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') && empty($info['video']['resolution_x'])) { $info['fileformat'] = 'mp4'; $info['mime_type'] = 'audio/mp4'; unset($info['video']['dataformat']); } 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'])) { $info['video']['dataformat'] = 'quicktime'; } return true; } public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) { // http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm $info = &$this->getid3->info; //$atom_parent = array_pop($atomHierarchy); $atom_parent = end($atomHierarchy); // http://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'] = $baseoffset; //echo getid3_lib::PrintHexBytes(substr($atom_data, 0, 8)).'
'; //echo getid3_lib::PrintHexBytes(substr($atom_data, 0, 8), false).'

'; 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 $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 "\x00\x00\x00\x01": case "\x00\x00\x00\x02": case "\x00\x00\x00\x03": case "\x00\x00\x00\x04": case "\x00\x00\x00\x05": $atomname = getid3_lib::BigEndian2Int($atomname); $atom_structure['name'] = $atomname; $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms); 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'] = $framecount; } break; case 'aART': // Album ARTist case 'catg': // CaTeGory case 'covr': // COVeR artwork case 'cpil': // ComPILation case 'cprt': // CoPyRighT case 'desc': // DESCription case 'disk': // DISK number case 'egid': // Episode Global ID case 'gnre': // GeNRE case 'keyw': // KEYWord case 'ldes': case 'pcst': // PodCaST case 'pgap': // GAPless Playback case 'purd': // PURchase Date case 'purl': // Podcast URL case 'rati': case 'rndu': case 'rpdu': case 'rtng': // RaTiNG case 'stik': case 'tmpo': // TeMPO (BPM) case 'trkn': // TRacK Number case 'tves': // TV EpiSode case 'tvnn': // TV Network Name case 'tvsh': // TV SHow Name case 'tvsn': // TV SeasoN case 'akID': // iTunes store account type case 'apID': case 'atID': case 'cmID': case 'cnID': case 'geID': case 'plID': case 'sfID': // iTunes store country case '©alb': // ALBum case '©art': // ARTist case '©ART': case '©aut': case '©cmt': // CoMmenT case '©com': // COMposer case '©cpy': case '©day': // content created year case '©dir': case '©ed1': case '©ed2': case '©ed3': case '©ed4': case '©ed5': case '©ed6': case '©ed7': case '©ed8': case '©ed9': case '©enc': case '©fmt': case '©gen': // GENre case '©grp': // GRouPing case '©hst': case '©inf': case '©lyr': // LYRics case '©mak': case '©mod': case '©nam': // full NAMe case '©ope': case '©PRD': case '©prd': case '©prf': case '©req': case '©src': case '©swr': case '©too': // encoder case '©trk': // TRacK case '©url': case '©wrn': case '©wrt': // WRiTer case '----': // itunes specific if ($atom_parent == 'udta') { // User data atom handler $atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2)); $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); $atom_structure['data'] = substr($atom_data, 4); $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']); if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) { $info['comments']['language'][] = $atom_structure['language']; } } else { // Apple item list box atom handler $atomoffset = 0; if (substr($atom_data, 2, 2) == "\x10\xB5") { // not sure what it means, but observed on iPhone4 data. // Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data while ($atomoffset < strlen($atom_data)) { $boxsmallsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset, 2)); $boxsmalltype = substr($atom_data, $atomoffset + 2, 2); $boxsmalldata = substr($atom_data, $atomoffset + 4, $boxsmallsize); if ($boxsmallsize <= 1) { $info['warning'][] = 'Invalid QuickTime atom smallbox size "'.$boxsmallsize.'" in atom "'.$atomname.'" at offset: '.($atom_structure['offset'] + $atomoffset); $atom_structure['data'] = null; $atomoffset = strlen($atom_data); break; } switch ($boxsmalltype) { case "\x10\xB5": $atom_structure['data'] = $boxsmalldata; break; default: $info['warning'][] = 'Unknown QuickTime smallbox type: "'.getid3_lib::PrintHexBytes($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) { $info['warning'][] = 'Invalid QuickTime atom box size "'.$boxsize.'" in atom "'.$atomname.'" at offset: '.($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 'pcst': case 'pgap': $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1)); break; case 'tmpo': $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 2)); break; case 'disk': case 'trkn': $num = getid3_lib::BigEndian2Int(substr($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': $GenreID = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4)); $atom_structure['data'] = getid3_id3v1::LookupGenreName($GenreID - 1); break; case 'rtng': $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1)); $atom_structure['data'] = $this->QuicktimeContentRatingLookup($atom_structure[$atomname]); break; case 'stik': $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1)); $atom_structure['data'] = $this->QuicktimeSTIKLookup($atom_structure[$atomname]); break; case 'sfID': $atom_structure[$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; default: $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4)); } break; case 1: // text flag case 13: // image flag default: $atom_structure['data'] = substr($boxdata, 8); break; } break; default: $info['warning'][] = 'Unknown QuickTime box type: "'.getid3_lib::PrintHexBytes($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 { $info['warning'][] = 'Error decompressing compressed MOV atom at offset '.$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 '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 $atom_structure['track_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); 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 { $info['warning'][] = 'unknown "ptv " display constant ('.$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)); $stsdEntriesDataOffset = 8; for ($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 "\x00\x00\x00\x00": // audio tracks $atom_structure['sample_description_table'][$i]['audio_channels'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 8, 2)); $atom_structure['sample_description_table'][$i]['audio_bit_depth'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 10, 2)); $atom_structure['sample_description_table'][$i]['audio_compression_id'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12, 2)); $atom_structure['sample_description_table'][$i]['audio_packet_size'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 14, 2)); $atom_structure['sample_description_table'][$i]['audio_sample_rate'] = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16, 4)); // video tracks // http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap3/qtff3.html $atom_structure['sample_description_table'][$i]['temporal_quality'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 8, 4)); $atom_structure['sample_description_table'][$i]['spatial_quality'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12, 4)); $atom_structure['sample_description_table'][$i]['width'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16, 2)); $atom_structure['sample_description_table'][$i]['height'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18, 2)); $atom_structure['sample_description_table'][$i]['resolution_x'] = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24, 4)); $atom_structure['sample_description_table'][$i]['resolution_y'] = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 28, 4)); $atom_structure['sample_description_table'][$i]['data_size'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32, 4)); $atom_structure['sample_description_table'][$i]['frame_count'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 36, 2)); $atom_structure['sample_description_table'][$i]['compressor_name'] = substr($atom_structure['sample_description_table'][$i]['data'], 38, 4); $atom_structure['sample_description_table'][$i]['pixel_depth'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 42, 2)); $atom_structure['sample_description_table'][$i]['color_table_id'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 44, 2)); switch ($atom_structure['sample_description_table'][$i]['data_format']) { case '2vuY': case 'avc1': case 'cvid': case 'dvc ': case 'dvcp': case 'gif ': case 'h263': case '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']; // http://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 $info['audio']['lossless'] = true; 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(); $frames_count = 0; for ($i = 0; $i < $atom_structure['number_entries']; $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) { $info['error'][] = 'Corrupt Quicktime file: mdhd.time_scale == zero'; return false; } $info['quicktime']['time_scale'] = (isset($info['quicktime']['time_scale']) ? 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) % 4); $i++) { $atom_structure['track_id'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $i * 4, 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) { $info['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']) ? 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']); 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'] = $info['video']['resolution_y']; } else { // see: http://www.getid3.org/phpBB3/viewtopic.php?t=1295 //if (isset($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 case 'free': // FREE space atom case 'skip': // SKIP atom case 'wide': // 64-bit expansion placeholder atom // 'mdat' data is too big to deal with, contains no useful metadata // '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, $i, 4)); } break; // Observed-but-not-handled atom types are just listed here to prevent warnings being generated case 'FXTC': // Something to do with Adobe After Effects (?) case 'PrmA': case 'code': case 'FIEL': // this is NOT "fiel" (Field Ordering) as describe here: http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html case 'tapt': // TrackApertureModeDimensionsAID - http://developer.apple.com/documentation/QuickTime/Reference/QT7-1_Update_Reference/Constants/Constants.html // tapt seems to be used to compute the video size [http://www.getid3.org/phpBB3/viewtopic.php?t=838] // * http://lists.apple.com/archives/quicktime-api/2006/Aug/msg00014.html // * http://handbrake.fr/irclogs/handbrake-dev/handbrake-dev20080128_pg2.html case 'ctts':// STCompositionOffsetAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html case 'cslg':// STCompositionShiftLeastGreatestAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html case 'sdtp':// STSampleDependencyAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html case 'stps':// STPartialSyncSampleAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html //$atom_structure['data'] = $atom_data; break; case '©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 { $info['warning'][] = 'QuickTime atom "©xyz" data does not match expected data pattern at offset '.$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('/^\xFF\xD8\xFF/', $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 'NCHD': // MakerNoteVersion // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html $atom_structure['data'] = $atom_data; break; case 'NCTG': // NikonTags // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG $atom_structure['data'] = $this->QuicktimeParseNikonNCTG($atom_data); break; case 'NCDB': // NikonTags // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html $atom_structure['data'] = $atom_data; break; case "\x00\x00\x00\x00": case 'meta': // METAdata atom // some kind of metacontainer, may contain a big data dump such as: // mdta keys  mdtacom.apple.quicktime.make (mdtacom.apple.quicktime.creationdate ,mdtacom.apple.quicktime.location.ISO6709 $mdtacom.apple.quicktime.software !mdtacom.apple.quicktime.model ilst 
data
DEApple 0  (data
DE2011-05-11T17:54:04+0200 2  *data
DE+52.4936+013.3897+040.247/   data
DE4.3.1  data
DEiPhone 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 'data': // metaDATA atom // 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); break; default: $info['warning'][] = 'Unknown QuickTime atom type: "'.$atomname.'" ('.trim(getid3_lib::PrintHexBytes($atomname)).') at offset '.$baseoffset; $atom_structure['data'] = $atom_data; break; } array_pop($atomHierarchy); return $atom_structure; } public function QuicktimeParseContainerAtom($atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) { //echo 'QuicktimeParseContainerAtom('.substr($atom_data, 4, 4).') @ '.$baseoffset.'

'; $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. return $atom_structure; } $atom_structure[$subatomcounter] = $this->QuicktimeParseAtom($subatomname, $subatomsize, $subatomdata, $baseoffset + $subatomoffset, $atomHierarchy, $ParseAllPossibleAtoms); $subatomoffset += $subatomsize; $subatomcounter++; } return $atom_structure; } public function quicktime_read_mp4_descr_length($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 $length; } public function QuicktimeLanguageLookup($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'); } 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] : ''); } public function QuicktimeAudioCodecLookup($codecid) { static $QuicktimeAudioCodecLookup = array(); if (empty($QuicktimeAudioCodecLookup)) { $QuicktimeAudioCodecLookup['.mp3'] = 'Fraunhofer MPEG Layer-III alias'; $QuicktimeAudioCodecLookup['aac '] = 'ISO/IEC 14496-3 AAC'; $QuicktimeAudioCodecLookup['agsm'] = 'Apple GSM 10:1'; $QuicktimeAudioCodecLookup['alac'] = 'Apple Lossless Audio Codec'; $QuicktimeAudioCodecLookup['alaw'] = 'A-law 2:1'; $QuicktimeAudioCodecLookup['conv'] = 'Sample Format'; $QuicktimeAudioCodecLookup['dvca'] = 'DV'; $QuicktimeAudioCodecLookup['dvi '] = 'DV 4:1'; $QuicktimeAudioCodecLookup['eqal'] = 'Frequency Equalizer'; $QuicktimeAudioCodecLookup['fl32'] = '32-bit Floating Point'; $QuicktimeAudioCodecLookup['fl64'] = '64-bit Floating Point'; $QuicktimeAudioCodecLookup['ima4'] = 'Interactive Multimedia Association 4:1'; $QuicktimeAudioCodecLookup['in24'] = '24-bit Integer'; $QuicktimeAudioCodecLookup['in32'] = '32-bit Integer'; $QuicktimeAudioCodecLookup['lpc '] = 'LPC 23:1'; $QuicktimeAudioCodecLookup['MAC3'] = 'Macintosh Audio Compression/Expansion (MACE) 3:1'; $QuicktimeAudioCodecLookup['MAC6'] = 'Macintosh Audio Compression/Expansion (MACE) 6:1'; $QuicktimeAudioCodecLookup['mixb'] = '8-bit Mixer'; $QuicktimeAudioCodecLookup['mixw'] = '16-bit Mixer'; $QuicktimeAudioCodecLookup['mp4a'] = 'ISO/IEC 14496-3 AAC'; $QuicktimeAudioCodecLookup['MS'."\x00\x02"] = 'Microsoft ADPCM'; $QuicktimeAudioCodecLookup['MS'."\x00\x11"] = 'DV IMA'; $QuicktimeAudioCodecLookup['MS'."\x00\x55"] = 'Fraunhofer MPEG Layer III'; $QuicktimeAudioCodecLookup['NONE'] = 'No Encoding'; $QuicktimeAudioCodecLookup['Qclp'] = 'Qualcomm PureVoice'; $QuicktimeAudioCodecLookup['QDM2'] = 'QDesign Music 2'; $QuicktimeAudioCodecLookup['QDMC'] = 'QDesign Music 1'; $QuicktimeAudioCodecLookup['ratb'] = '8-bit Rate'; $QuicktimeAudioCodecLookup['ratw'] = '16-bit Rate'; $QuicktimeAudioCodecLookup['raw '] = 'raw PCM'; $QuicktimeAudioCodecLookup['sour'] = 'Sound Source'; $QuicktimeAudioCodecLookup['sowt'] = 'signed/two\'s complement (Little Endian)'; $QuicktimeAudioCodecLookup['str1'] = 'Iomega MPEG layer II'; $QuicktimeAudioCodecLookup['str2'] = 'Iomega MPEG *layer II'; $QuicktimeAudioCodecLookup['str3'] = 'Iomega MPEG **layer II'; $QuicktimeAudioCodecLookup['str4'] = 'Iomega MPEG ***layer II'; $QuicktimeAudioCodecLookup['twos'] = 'signed/two\'s complement (Big Endian)'; $QuicktimeAudioCodecLookup['ulaw'] = 'mu-law 2:1'; } return (isset($QuicktimeAudioCodecLookup[$codecid]) ? $QuicktimeAudioCodecLookup[$codecid] : ''); } public function QuicktimeDCOMLookup($compressionid) { static $QuicktimeDCOMLookup = array(); if (empty($QuicktimeDCOMLookup)) { $QuicktimeDCOMLookup['zlib'] = 'ZLib Deflate'; $QuicktimeDCOMLookup['adec'] = 'Apple Compression'; } return (isset($QuicktimeDCOMLookup[$compressionid]) ? $QuicktimeDCOMLookup[$compressionid] : ''); } 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'); } 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'); } 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'); } 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'); } 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'); } public function QuicktimeStoreAccountTypeLookup($akid) { static $QuicktimeStoreAccountTypeLookup = array(); if (empty($QuicktimeStoreAccountTypeLookup)) { $QuicktimeStoreAccountTypeLookup[0] = 'iTunes'; $QuicktimeStoreAccountTypeLookup[1] = 'AOL'; } return (isset($QuicktimeStoreAccountTypeLookup[$akid]) ? $QuicktimeStoreAccountTypeLookup[$akid] : 'invalid'); } 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'); } 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; $datalength = strlen($atom_data); $parsed = array(); while ($offset < $datalength) { //echo getid3_lib::PrintHexBytes(substr($atom_data, $offset, 4)).'
'; $record_type = getid3_lib::BigEndian2Int(substr($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.'
'; 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 $parsed; } public function CopyToAppropriateCommentsSection($keyname, $data, $boxname='') { static $handyatomtranslatorarray = array(); if (empty($handyatomtranslatorarray)) { $handyatomtranslatorarray['©cpy'] = 'copyright'; $handyatomtranslatorarray['©day'] = 'creation_date'; // iTunes 4.0 $handyatomtranslatorarray['©dir'] = 'director'; $handyatomtranslatorarray['©ed1'] = 'edit1'; $handyatomtranslatorarray['©ed2'] = 'edit2'; $handyatomtranslatorarray['©ed3'] = 'edit3'; $handyatomtranslatorarray['©ed4'] = 'edit4'; $handyatomtranslatorarray['©ed5'] = 'edit5'; $handyatomtranslatorarray['©ed6'] = 'edit6'; $handyatomtranslatorarray['©ed7'] = 'edit7'; $handyatomtranslatorarray['©ed8'] = 'edit8'; $handyatomtranslatorarray['©ed9'] = 'edit9'; $handyatomtranslatorarray['©fmt'] = 'format'; $handyatomtranslatorarray['©inf'] = 'information'; $handyatomtranslatorarray['©prd'] = 'producer'; $handyatomtranslatorarray['©prf'] = 'performers'; $handyatomtranslatorarray['©req'] = 'system_requirements'; $handyatomtranslatorarray['©src'] = 'source_credit'; $handyatomtranslatorarray['©wrt'] = 'writer'; // http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt $handyatomtranslatorarray['©nam'] = 'title'; // iTunes 4.0 $handyatomtranslatorarray['©cmt'] = 'comment'; // iTunes 4.0 $handyatomtranslatorarray['©wrn'] = 'warning'; $handyatomtranslatorarray['©hst'] = 'host_computer'; $handyatomtranslatorarray['©mak'] = 'make'; $handyatomtranslatorarray['©mod'] = 'model'; $handyatomtranslatorarray['©PRD'] = 'product'; $handyatomtranslatorarray['©swr'] = 'software'; $handyatomtranslatorarray['©aut'] = 'author'; $handyatomtranslatorarray['©ART'] = 'artist'; $handyatomtranslatorarray['©trk'] = 'track'; $handyatomtranslatorarray['©alb'] = 'album'; // iTunes 4.0 $handyatomtranslatorarray['©com'] = 'comment'; $handyatomtranslatorarray['©gen'] = 'genre'; // iTunes 4.0 $handyatomtranslatorarray['©ope'] = 'composer'; $handyatomtranslatorarray['©url'] = 'url'; $handyatomtranslatorarray['©enc'] = 'encoder'; // http://atomicparsley.sourceforge.net/mpeg-4files.html $handyatomtranslatorarray['©art'] = 'artist'; // iTunes 4.0 $handyatomtranslatorarray['aART'] = 'album_artist'; $handyatomtranslatorarray['trkn'] = 'track_number'; // iTunes 4.0 $handyatomtranslatorarray['disk'] = 'disc_number'; // iTunes 4.0 $handyatomtranslatorarray['gnre'] = 'genre'; // iTunes 4.0 $handyatomtranslatorarray['©too'] = 'encoder'; // iTunes 4.0 $handyatomtranslatorarray['tmpo'] = 'bpm'; // iTunes 4.0 $handyatomtranslatorarray['cprt'] = 'copyright'; // iTunes 4.0? $handyatomtranslatorarray['cpil'] = 'compilation'; // iTunes 4.0 $handyatomtranslatorarray['covr'] = 'picture'; // iTunes 4.0 $handyatomtranslatorarray['rtng'] = 'rating'; // iTunes 4.0 $handyatomtranslatorarray['©grp'] = 'grouping'; // iTunes 4.2 $handyatomtranslatorarray['stik'] = 'stik'; // iTunes 4.9 $handyatomtranslatorarray['pcst'] = 'podcast'; // iTunes 4.9 $handyatomtranslatorarray['catg'] = 'category'; // iTunes 4.9 $handyatomtranslatorarray['keyw'] = 'keyword'; // iTunes 4.9 $handyatomtranslatorarray['purl'] = 'podcast_url'; // iTunes 4.9 $handyatomtranslatorarray['egid'] = 'episode_guid'; // iTunes 4.9 $handyatomtranslatorarray['desc'] = 'description'; // iTunes 5.0 $handyatomtranslatorarray['©lyr'] = 'lyrics'; // iTunes 5.0 $handyatomtranslatorarray['tvnn'] = 'tv_network_name'; // iTunes 6.0 $handyatomtranslatorarray['tvsh'] = 'tv_show_name'; // iTunes 6.0 $handyatomtranslatorarray['tvsn'] = 'tv_season'; // iTunes 6.0 $handyatomtranslatorarray['tves'] = 'tv_episode'; // iTunes 6.0 $handyatomtranslatorarray['purd'] = 'purchase_date'; // iTunes 6.0.2 $handyatomtranslatorarray['pgap'] = 'gapless_playback'; // iTunes 7.0 // http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt // 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 - http://www.getid3.org/phpBB3/viewtopic.php?t=1355 $handyatomtranslatorarray['MEDIATYPE'] = 'mediatype'; // Foobar2000 - http://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('#^\x89\x50\x4E\x47\x0D\x0A\x1A\x0A#', $data)) { $image_mime = 'image/png'; } elseif (preg_match('#^\xFF\xD8\xFF#', $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); } } $info['quicktime']['comments'][$comment_key][] = $data; } return true; } public function NoNullString($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 $nullterminatedstring; } public function Pascal2String($pascalstring) { // Pascal strings have 1 unsigned byte at the beginning saying how many chars (1-255) are in the string return substr($pascalstring, 1); } }