function ParseRIFF(&$fd, $startoffset, $maxoffset, &$ThisFileInfo)
{
$maxoffset = min($maxoffset, $ThisFileInfo['avdataend']);
$RIFFchunk = false;
fseek($fd, $startoffset, SEEK_SET);
while (ftell($fd) < $maxoffset) {
$chunkname = fread($fd, 4);
if (strlen($chunkname) < 4) {
$ThisFileInfo['error'][] = 'Expecting chunk name at offset ' . (ftell($fd) - 4) . ' but found nothing. Aborting RIFF parsing.';
break;
}
$chunksize = getid3_riff::EitherEndian2Int($ThisFileInfo, fread($fd, 4));
if ($chunksize == 0) {
$ThisFileInfo['error'][] = 'Chunk size at offset ' . (ftell($fd) - 4) . ' is zero. Aborting RIFF parsing.';
break;
}
if ($chunksize % 2 != 0) {
// all structures are packed on word boundaries
$chunksize++;
}
switch ($chunkname) {
case 'LIST':
$listname = fread($fd, 4);
switch ($listname) {
case 'movi':
case 'rec ':
$RIFFchunk[$listname]['offset'] = ftell($fd) - 4;
$RIFFchunk[$listname]['size'] = $chunksize;
static $ParsedAudioStream = false;
if ($ParsedAudioStream) {
// skip over
} else {
$WhereWeWere = ftell($fd);
$AudioChunkHeader = fread($fd, 12);
$AudioChunkStreamNum = substr($AudioChunkHeader, 0, 2);
$AudioChunkStreamType = substr($AudioChunkHeader, 2, 2);
$AudioChunkSize = getid3_lib::LittleEndian2Int(substr($AudioChunkHeader, 4, 4));
if ($AudioChunkStreamType == 'wb') {
$FirstFourBytes = substr($AudioChunkHeader, 8, 4);
if (preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', $FirstFourBytes)) {
// MP3
if (getid3_mp3::MPEGaudioHeaderBytesValid($FirstFourBytes)) {
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = ftell($fd) - 4;
$dummy['avdataend'] = ftell($fd) + $AudioChunkSize;
getid3_mp3::getOnlyMPEGaudioInfo($fd, $dummy, $dummy['avdataoffset'], false);
if (isset($dummy['mpeg']['audio'])) {
$ThisFileInfo = $dummy;
$ThisFileInfo['audio']['dataformat'] = 'mp' . $ThisFileInfo['mpeg']['audio']['layer'];
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['mpeg']['audio']['sample_rate'];
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['mpeg']['audio']['channels'];
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['mpeg']['audio']['bitrate'];
$ThisFileInfo['bitrate'] = $ThisFileInfo['audio']['bitrate'];
$ThisFileInfo['audio']['bitrate_mode'] = strtolower($ThisFileInfo['mpeg']['audio']['bitrate_mode']);
}
}
} elseif (preg_match('/^\\x0B\\x77/s', $FirstFourBytes)) {
// AC3
$GETID3_ERRORARRAY =& $ThisFileInfo['warning'];
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = ftell($fd) - 4;
$dummy['avdataend'] = ftell($fd) + $AudioChunkSize;
$dummy['error'] = array();
$ac3_tag = new getid3_ac3($fd, $dummy);
if (empty($dummy['error'])) {
$ThisFileInfo['audio'] = $dummy['audio'];
$ThisFileInfo['ac3'] = $dummy['ac3'];
$ThisFileInfo['warning'] = $dummy['warning'];
}
}
}
}
$ParsedAudioStream = true;
fseek($fd, $WhereWeWere, SEEK_SET);
}
fseek($fd, $chunksize - 4, SEEK_CUR);
break;
default:
if (!isset($RIFFchunk[$listname])) {
$RIFFchunk[$listname] = array();
}
$LISTchunkParent = $listname;
$LISTchunkMaxOffset = ftell($fd) - 4 + $chunksize;
if ($parsedChunk = getid3_riff::ParseRIFF($fd, ftell($fd), ftell($fd) + $chunksize - 4, $ThisFileInfo)) {
$RIFFchunk[$listname] = array_merge_recursive($RIFFchunk[$listname], $parsedChunk);
}
break;
}
break;
default:
$thisindex = 0;
if (isset($RIFFchunk[$chunkname]) && is_array($RIFFchunk[$chunkname])) {
$thisindex = count($RIFFchunk[$chunkname]);
}
$RIFFchunk[$chunkname][$thisindex]['offset'] = ftell($fd) - 8;
$RIFFchunk[$chunkname][$thisindex]['size'] = $chunksize;
switch ($chunkname) {
case 'data':
$ThisFileInfo['avdataoffset'] = ftell($fd);
$ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $chunksize;
$RIFFdataChunkContentsTest = fread($fd, 36);
if (strlen($RIFFdataChunkContentsTest) > 0 && preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', substr($RIFFdataChunkContentsTest, 0, 4))) {
// Probably is MP3 data
if (getid3_mp3::MPEGaudioHeaderBytesValid(substr($RIFFdataChunkContentsTest, 0, 4))) {
getid3_mp3::getOnlyMPEGaudioInfo($fd, $ThisFileInfo, $RIFFchunk[$chunkname][$thisindex]['offset'], false);
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 0, 2) == "\vw") {
// This is probably AC-3 data
$GETID3_ERRORARRAY =& $ThisFileInfo['warning'];
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$dummy['avdataend'] = $dummy['avdataoffset'] + $RIFFchunk[$chunkname][$thisindex]['size'];
$dummy['error'] = array();
$ac3_tag = new getid3_ac3($fd, $dummy);
if (empty($dummy['error'])) {
$ThisFileInfo['audio'] = $dummy['audio'];
$ThisFileInfo['ac3'] = $dummy['ac3'];
$ThisFileInfo['warning'] = $dummy['warning'];
}
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 8, 2) == "w\v") {
// Dolby Digital WAV
// AC-3 content, but not encoded in same format as normal AC-3 file
// For one thing, byte order is swapped
$GETID3_ERRORARRAY =& $ThisFileInfo['warning'];
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
// ok to use tmpfile here - only 56 bytes
if ($fd_temp = tmpfile()) {
for ($i = 0; $i < 28; $i += 2) {
// swap byte order
fwrite($fd_temp, substr($RIFFdataChunkContentsTest, 8 + $i + 1, 1));
fwrite($fd_temp, substr($RIFFdataChunkContentsTest, 8 + $i + 0, 1));
}
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = 0;
$dummy['avdataend'] = 20;
$dummy['error'] = array();
$ac3_tag = new getid3_ac3($fd_temp, $dummy);
fclose($fd_temp);
if (empty($dummy['error'])) {
$ThisFileInfo['audio'] = $dummy['audio'];
$ThisFileInfo['ac3'] = $dummy['ac3'];
$ThisFileInfo['warning'] = $dummy['warning'];
} else {
$ThisFileInfo['error'][] = 'Errors parsing DolbyDigital WAV: ' . explode(';', $dummy['error']);
}
} else {
$ThisFileInfo['error'][] = 'Could not create temporary file to analyze DolbyDigital WAV';
}
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 0, 4) == 'wvpk') {
// This is WavPack data
$ThisFileInfo['wavpack']['offset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$ThisFileInfo['wavpack']['size'] = getid3_lib::LittleEndian2Int(substr($RIFFdataChunkContentsTest, 4, 4));
getid3_riff::RIFFparseWavPackHeader(substr($RIFFdataChunkContentsTest, 8, 28), $ThisFileInfo);
} else {
// This is some other kind of data (quite possibly just PCM)
// do nothing special, just skip it
}
fseek($fd, $RIFFchunk[$chunkname][$thisindex]['offset'] + 8 + $chunksize, SEEK_SET);
break;
case 'bext':
case 'cart':
case 'fmt ':
case 'MEXT':
case 'DISP':
// always read data in
$RIFFchunk[$chunkname][$thisindex]['data'] = fread($fd, $chunksize);
break;
default:
if (!empty($LISTchunkParent) && $RIFFchunk[$chunkname][$thisindex]['offset'] + $RIFFchunk[$chunkname][$thisindex]['size'] <= $LISTchunkMaxOffset) {
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['offset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['size'] = $RIFFchunk[$chunkname][$thisindex]['size'];
unset($RIFFchunk[$chunkname][$thisindex]['offset']);
unset($RIFFchunk[$chunkname][$thisindex]['size']);
if (isset($RIFFchunk[$chunkname][$thisindex]) && empty($RIFFchunk[$chunkname][$thisindex])) {
unset($RIFFchunk[$chunkname][$thisindex]);
}
if (isset($RIFFchunk[$chunkname]) && empty($RIFFchunk[$chunkname])) {
unset($RIFFchunk[$chunkname]);
}
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['data'] = fread($fd, $chunksize);
} elseif ($chunksize < 2048) {
// only read data in if smaller than 2kB
$RIFFchunk[$chunkname][$thisindex]['data'] = fread($fd, $chunksize);
} else {
fseek($fd, $chunksize, SEEK_CUR);
}
break;
}
break;
}
}
return $RIFFchunk;
}
public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms)
{
// http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
$info =& $this->getid3->info;
$atom_parent = end($atomHierarchy);
// not array_pop($atomHierarchy); see http://www.getid3.org/phpBB3/viewtopic.php?t=1717
array_push($atomHierarchy, $atomname);
$atom_structure['hierarchy'] = implode(' ', $atomHierarchy);
$atom_structure['name'] = $atomname;
$atom_structure['size'] = $atomsize;
$atom_structure['offset'] = $baseoffset;
switch ($atomname) {
case 'moov':
// MOVie container atom
// MOVie container atom
case 'trak':
// TRAcK container atom
// TRAcK container atom
case 'clip':
// CLIPping container atom
// CLIPping container atom
case 'matt':
// track MATTe container atom
// track MATTe container atom
case 'edts':
// EDiTS container atom
// EDiTS container atom
case 'tref':
// Track REFerence container atom
// Track REFerence container atom
case 'mdia':
// MeDIA container atom
// MeDIA container atom
case 'minf':
// Media INFormation container atom
// Media INFormation container atom
case 'dinf':
// Data INFormation container atom
// Data INFormation container atom
case 'udta':
// User DaTA container atom
// User DaTA container atom
case 'cmov':
// Compressed MOVie container atom
// Compressed MOVie container atom
case 'rmra':
// Reference Movie Record Atom
// Reference Movie Record Atom
case 'rmda':
// Reference Movie Descriptor Atom
// Reference Movie Descriptor Atom
case 'gmhd':
// Generic Media info HeaDer atom (seen on QTVR)
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
break;
case 'ilst':
// Item LiST container atom
if ($atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms)) {
// some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted
$allnumericnames = true;
foreach ($atom_structure['subatoms'] as $subatomarray) {
if (!is_integer($subatomarray['name']) || count($subatomarray['subatoms']) != 1) {
$allnumericnames = false;
break;
}
}
if ($allnumericnames) {
$newData = array();
foreach ($atom_structure['subatoms'] as $subatomarray) {
foreach ($subatomarray['subatoms'] as $newData_subatomarray) {
unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']);
$newData[$subatomarray['name']] = $newData_subatomarray;
break;
}
}
$atom_structure['data'] = $newData;
unset($atom_structure['subatoms']);
}
}
break;
case "":
case "":
case "":
case "":
case "":
$atomname = getid3_lib::BigEndian2Int($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
// Album ARTist
case 'catg':
// CaTeGory
// CaTeGory
case 'covr':
// COVeR artwork
// COVeR artwork
case 'cpil':
// ComPILation
// ComPILation
case 'cprt':
// CoPyRighT
// CoPyRighT
case 'desc':
// DESCription
// DESCription
case 'disk':
// DISK number
// DISK number
case 'egid':
// Episode Global ID
// Episode Global ID
case 'gnre':
// GeNRE
// GeNRE
case 'keyw':
// KEYWord
// KEYWord
case 'ldes':
case 'pcst':
// PodCaST
// PodCaST
case 'pgap':
// GAPless Playback
// GAPless Playback
case 'purd':
// PURchase Date
// PURchase Date
case 'purl':
// Podcast URL
// Podcast URL
case 'rati':
case 'rndu':
case 'rpdu':
case 'rtng':
// RaTiNG
// RaTiNG
case 'stik':
case 'tmpo':
// TeMPO (BPM)
// TeMPO (BPM)
case 'trkn':
// TRacK Number
// TRacK Number
case 'tves':
// TV EpiSode
// TV EpiSode
case 'tvnn':
// TV Network Name
// TV Network Name
case 'tvsh':
// TV SHow Name
// TV SHow Name
case 'tvsn':
// TV SeasoN
// TV SeasoN
case 'akID':
// iTunes store account type
// iTunes store account type
case 'apID':
case 'atID':
case 'cmID':
case 'cnID':
case 'geID':
case 'plID':
case 'sfID':
// iTunes store country
// iTunes store country
case "©" . 'alb':
// ALBum
// ALBum
case "©" . 'art':
// ARTist
// ARTist
case "©" . 'ART':
case "©" . 'aut':
case "©" . 'cmt':
// CoMmenT
// CoMmenT
case "©" . 'com':
// COMposer
// COMposer
case "©" . 'cpy':
case "©" . 'day':
// content created year
// 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
// GENre
case "©" . 'grp':
// GRouPing
// GRouPing
case "©" . 'hst':
case "©" . 'inf':
case "©" . 'lyr':
// LYRics
// LYRics
case "©" . 'mak':
case "©" . 'mod':
case "©" . 'nam':
// full NAMe
// full NAMe
case "©" . 'ope':
case "©" . 'PRD':
case "©" . 'prd':
case "©" . 'prf':
case "©" . 'req':
case "©" . 'src':
case "©" . 'swr':
case "©" . 'too':
// encoder
// encoder
case "©" . 'trk':
// TRacK
// TRacK
case "©" . 'url':
case "©" . 'wrn':
case "©" . 'wrt':
// WRiTer
// 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) == "µ") {
// 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 "µ":
$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 ($atom_structure['flags_raw']) {
case 0:
// data flag
// data flag
case 21:
// tmpo/cpil flag
switch ($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
// text flag
case 13:
// image flag
// image flag
default:
$atom_structure['data'] = substr($boxdata, 8);
if ($atomname == 'covr') {
// not a foolproof check, but better than nothing
if (preg_match('#^\\xFF\\xD8\\xFF#', $atom_structure['data'])) {
$atom_structure['image_mime'] = 'image/jpeg';
} elseif (preg_match('#^\\x89\\x50\\x4E\\x47\\x0D\\x0A\\x1A\\x0A#', $atom_structure['data'])) {
$atom_structure['image_mime'] = 'image/png';
} elseif (preg_match('#^GIF#', $atom_structure['data'])) {
$atom_structure['image_mime'] = 'image/gif';
}
}
break;
}
break;
default:
$info['warning'][] = 'Unknown QuickTime box type: "' . getid3_lib::PrintHexBytes($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
// LOOPing atom
case 'SelO':
// play SELection Only atom
// 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
// Media Cleaner PRo
case '@PRM':
// adobe PReMiere version
// 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'] & 0x1);
$atom_structure['reference_type_name'] = substr($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 "":
// 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
// 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;
$info['video']['pixel_aspect_ratio'] = (double) 1;
break;
}
break;
}
switch (strtolower($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'] & 0x1);
}
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'] & 0x1);
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'] & 0x20);
$atom_structure['default_hints']['high_quality'] = (bool) ($atom_structure['default_hints_raw'] & 0x100);
break;
case 'tmcd':
// TiMe CoDe atom
// TiMe CoDe atom
case 'chap':
// CHAPter list atom
// CHAPter list atom
case 'sync':
// SYNChronization atom
// SYNChronization atom
case 'scpt':
// tranSCriPT atom
// tranSCriPT atom
case 'ssrc':
// non-primary SouRCe atom
for ($i = 0; $i < strlen($atom_data); $i += 4) {
@($atom_structure['track_id'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4)));
}
break;
case 'elst':
// Edit LiST atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
// hardcoded: 0x0000
$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
$atom_structure['edit_list'][$i]['track_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + $i * 12 + 0, 4));
$atom_structure['edit_list'][$i]['media_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + $i * 12 + 4, 4));
$atom_structure['edit_list'][$i]['media_rate'] = getid3_lib::FixedPoint16_16(substr($atom_data, 8 + $i * 12 + 8, 4));
}
break;
case 'kmat':
// compressed MATte atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
// hardcoded: 0x0000
$atom_structure['matte_data_raw'] = substr($atom_data, 4);
break;
case 'ctab':
// Color TABle atom
$atom_structure['color_table_seed'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
// hardcoded: 0x00000000
$atom_structure['color_table_flags'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2));
// hardcoded: 0x8000
$atom_structure['color_table_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 6, 2)) + 1;
for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) {
$atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + $colortableentry * 8 + 0, 2));
$atom_structure['color_table'][$colortableentry]['red'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + $colortableentry * 8 + 2, 2));
$atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + $colortableentry * 8 + 4, 2));
$atom_structure['color_table'][$colortableentry]['blue'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + $colortableentry * 8 + 6, 2));
}
break;
case 'mvhd':
// MoVie HeaDer atom
$atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
$atom_structure['creation_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));
$atom_structure['modify_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4));
$atom_structure['time_scale'] = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
$atom_structure['duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
$atom_structure['preferred_rate'] = getid3_lib::FixedPoint16_16(substr($atom_data, 20, 4));
$atom_structure['preferred_volume'] = getid3_lib::FixedPoint8_8(substr($atom_data, 24, 2));
$atom_structure['reserved'] = substr($atom_data, 26, 10);
$atom_structure['matrix_a'] = getid3_lib::FixedPoint16_16(substr($atom_data, 36, 4));
$atom_structure['matrix_b'] = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
$atom_structure['matrix_u'] = getid3_lib::FixedPoint2_30(substr($atom_data, 44, 4));
$atom_structure['matrix_c'] = getid3_lib::FixedPoint16_16(substr($atom_data, 48, 4));
$atom_structure['matrix_d'] = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
$atom_structure['matrix_v'] = getid3_lib::FixedPoint2_30(substr($atom_data, 56, 4));
$atom_structure['matrix_x'] = getid3_lib::FixedPoint16_16(substr($atom_data, 60, 4));
$atom_structure['matrix_y'] = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
$atom_structure['matrix_w'] = getid3_lib::FixedPoint2_30(substr($atom_data, 68, 4));
$atom_structure['preview_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 72, 4));
$atom_structure['preview_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 76, 4));
$atom_structure['poster_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 80, 4));
$atom_structure['selection_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 84, 4));
$atom_structure['selection_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 88, 4));
$atom_structure['current_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 92, 4));
$atom_structure['next_track_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 96, 4));
if ($atom_structure['time_scale'] == 0) {
$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'] & 0x1);
$atom_structure['flags']['in_movie'] = (bool) ($atom_structure['flags_raw'] & 0x2);
$atom_structure['flags']['in_preview'] = (bool) ($atom_structure['flags_raw'] & 0x4);
$atom_structure['flags']['in_poster'] = (bool) ($atom_structure['flags_raw'] & 0x8);
$atom_structure['creation_time_unix'] = getid3_lib::DateMac2Unix($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
// 'mdat' contains the actual data for the audio/video, possibly also subtitles
/* due to lack of known documentation, this is a kludge implementation. If you know of documentation on how mdat is properly structed, please send it to info@getid3.org */
// first, skip any 'wide' padding, and second 'mdat' header (with specified size of zero?)
$mdat_offset = 0;
while (true) {
if (substr($atom_data, $mdat_offset, 8) == "" . 'wide') {
$mdat_offset += 8;
} elseif (substr($atom_data, $mdat_offset, 8) == "" . 'mdat') {
$mdat_offset += 8;
} else {
break;
}
}
// check to see if it looks like chapter titles, in the form of unterminated strings with a leading 16-bit size field
while (($chapter_string_length = getid3_lib::BigEndian2Int(substr($atom_data, $mdat_offset, 2))) && $chapter_string_length < 1000 && $chapter_string_length <= strlen($atom_data) - $mdat_offset - 2 && preg_match('#^[\\x20-\\xFF]+$#', substr($atom_data, $mdat_offset + 2, $chapter_string_length), $chapter_matches)) {
$mdat_offset += 2 + $chapter_string_length;
@($info['quicktime']['comments']['chapters'][] = $chapter_matches[0]);
}
if ($atomsize > 8 && (!isset($info['avdataend_tmp']) || $info['quicktime'][$atomname]['size'] > $info['avdataend_tmp'] - $info['avdataoffset'])) {
$info['avdataoffset'] = $atom_structure['offset'] + 8;
// $info['quicktime'][$atomname]['offset'] + 8;
$OldAVDataEnd = $info['avdataend'];
$info['avdataend'] = $atom_structure['offset'] + $atom_structure['size'];
// $info['quicktime'][$atomname]['offset'] + $info['quicktime'][$atomname]['size'];
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
$getid3_temp->info['avdataend'] = $info['avdataend'];
$getid3_mp3 = new getid3_mp3($getid3_temp);
if ($getid3_mp3->MPEGaudioHeaderValid($getid3_mp3->MPEGaudioHeaderDecode($this->fread(4)))) {
$getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
if (!empty($getid3_temp->info['warning'])) {
foreach ($getid3_temp->info['warning'] as $value) {
$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);
}
unset($mdat_offset, $chapter_string_length, $chapter_matches);
break;
case 'free':
// FREE space atom
// FREE space atom
case 'skip':
// SKIP atom
// SKIP atom
case 'wide':
// 64-bit expansion placeholder atom
// 'free', 'skip' and 'wide' are just padding, contains no useful data at all
// When writing QuickTime files, it is sometimes necessary to update an atom's size.
// It is impossible to update a 32-bit atom to a 64-bit atom since the 32-bit atom
// is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime
// puts an 8-byte placeholder atom before any atoms it may have to update the size of.
// In this way, if the atom needs to be converted from a 32-bit to a 64-bit atom, the
// placeholder atom can be overwritten to obtain the necessary 8 extra bytes.
// The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ).
break;
case 'nsav':
// NoSAVe atom
// http://developer.apple.com/technotes/tn/tn2038.html
$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
break;
case 'ctyp':
// Controller TYPe atom (seen on QTVR)
// http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
// some controller names are:
// 0x00 + 'std' for linear movie
// 'none' for no controls
$atom_structure['ctyp'] = substr($atom_data, 0, 4);
$info['quicktime']['controller'] = $atom_structure['ctyp'];
switch ($atom_structure['ctyp']) {
case 'qtvr':
$info['video']['dataformat'] = 'quicktimevr';
break;
}
break;
case 'pano':
// PANOrama track (seen on QTVR)
$atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
break;
case 'hint':
// HINT track
// 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
// Observed-but-not-handled atom types are just listed here to prevent warnings being generated
case 'FXTC':
// Something to do with Adobe After Effects (?)
// 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
// 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
// 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
// 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
// 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
// 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
// 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 'NCTG':
// Nikon - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
$atom_structure['data'] = $this->QuicktimeParseNikonNCTG($atom_data);
break;
case 'NCHD':
// Nikon:MakerNoteVersion - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
// Nikon:MakerNoteVersion - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
case 'NCDB':
// Nikon - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
// Nikon - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
case 'CNCV':
// Canon:CompressorVersion - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Canon.html
$atom_structure['data'] = $atom_data;
break;
case "":
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 $atom_structure;
}
public function ParseRIFF($startoffset, $maxoffset)
{
$info =& $this->getid3->info;
$RIFFchunk = false;
$FoundAllChunksWeNeed = false;
try {
$this->fseek($startoffset);
$maxoffset = min($maxoffset, $info['avdataend']);
while ($this->ftell() < $maxoffset) {
$chunknamesize = $this->fread(8);
//$chunkname = substr($chunknamesize, 0, 4);
$chunkname = str_replace("", '_', substr($chunknamesize, 0, 4));
// note: chunk names of 4 null bytes do appear to be legal (has been observed inside INFO and PRMI chunks, for example), but makes traversing array keys more difficult
$chunksize = $this->EitherEndian2Int(substr($chunknamesize, 4, 4));
//if (strlen(trim($chunkname, "\x00")) < 4) {
if (strlen($chunkname) < 4) {
$this->error('Expecting chunk name at offset ' . ($this->ftell() - 8) . ' but found nothing. Aborting RIFF parsing.');
break;
}
if ($chunksize == 0 && $chunkname != 'JUNK') {
$this->warning('Chunk (' . $chunkname . ') size at offset ' . ($this->ftell() - 4) . ' is zero. Aborting RIFF parsing.');
break;
}
if ($chunksize % 2 != 0) {
// all structures are packed on word boundaries
$chunksize++;
}
switch ($chunkname) {
case 'LIST':
$listname = $this->fread(4);
if (preg_match('#^(movi|rec )$#i', $listname)) {
$RIFFchunk[$listname]['offset'] = $this->ftell() - 4;
$RIFFchunk[$listname]['size'] = $chunksize;
if (!$FoundAllChunksWeNeed) {
$WhereWeWere = $this->ftell();
$AudioChunkHeader = $this->fread(12);
$AudioChunkStreamNum = substr($AudioChunkHeader, 0, 2);
$AudioChunkStreamType = substr($AudioChunkHeader, 2, 2);
$AudioChunkSize = getid3_lib::LittleEndian2Int(substr($AudioChunkHeader, 4, 4));
if ($AudioChunkStreamType == 'wb') {
$FirstFourBytes = substr($AudioChunkHeader, 8, 4);
if (preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', $FirstFourBytes)) {
// MP3
if (getid3_mp3::MPEGaudioHeaderBytesValid($FirstFourBytes)) {
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $this->ftell() - 4;
$getid3_temp->info['avdataend'] = $this->ftell() + $AudioChunkSize;
$getid3_mp3 = new getid3_mp3($getid3_temp, __CLASS__);
$getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
if (isset($getid3_temp->info['mpeg']['audio'])) {
$info['mpeg']['audio'] = $getid3_temp->info['mpeg']['audio'];
$info['audio'] = $getid3_temp->info['audio'];
$info['audio']['dataformat'] = 'mp' . $info['mpeg']['audio']['layer'];
$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_temp, $getid3_mp3);
}
} elseif (strpos($FirstFourBytes, getid3_ac3::syncword) === 0) {
// AC3
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $this->ftell() - 4;
$getid3_temp->info['avdataend'] = $this->ftell() + $AudioChunkSize;
$getid3_ac3 = new getid3_ac3($getid3_temp);
$getid3_ac3->Analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['ac3'] = $getid3_temp->info['ac3'];
if (!empty($getid3_temp->info['warning'])) {
foreach ($getid3_temp->info['warning'] as $key => $value) {
$info['warning'][] = $value;
}
}
}
unset($getid3_temp, $getid3_ac3);
}
}
$FoundAllChunksWeNeed = true;
$this->fseek($WhereWeWere);
}
$this->fseek($chunksize - 4, SEEK_CUR);
} else {
if (!isset($RIFFchunk[$listname])) {
$RIFFchunk[$listname] = array();
}
$LISTchunkParent = $listname;
$LISTchunkMaxOffset = $this->ftell() - 4 + $chunksize;
if ($parsedChunk = $this->ParseRIFF($this->ftell(), $LISTchunkMaxOffset)) {
$RIFFchunk[$listname] = array_merge_recursive($RIFFchunk[$listname], $parsedChunk);
}
}
break;
default:
if (preg_match('#^[0-9]{2}(wb|pc|dc|db)$#', $chunkname)) {
$this->fseek($chunksize, SEEK_CUR);
break;
}
$thisindex = 0;
if (isset($RIFFchunk[$chunkname]) && is_array($RIFFchunk[$chunkname])) {
$thisindex = count($RIFFchunk[$chunkname]);
}
$RIFFchunk[$chunkname][$thisindex]['offset'] = $this->ftell() - 8;
$RIFFchunk[$chunkname][$thisindex]['size'] = $chunksize;
switch ($chunkname) {
case 'data':
$info['avdataoffset'] = $this->ftell();
$info['avdataend'] = $info['avdataoffset'] + $chunksize;
$testData = $this->fread(36);
if ($testData === '') {
break;
}
if (preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', substr($testData, 0, 4))) {
// Probably is MP3 data
if (getid3_mp3::MPEGaudioHeaderBytesValid(substr($testData, 0, 4))) {
$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, __CLASS__);
$getid3_mp3->getOnlyMPEGaudioInfo($info['avdataoffset'], false);
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['mpeg'] = $getid3_temp->info['mpeg'];
}
unset($getid3_temp, $getid3_mp3);
}
} elseif (($isRegularAC3 = substr($testData, 0, 2) == getid3_ac3::syncword) || substr($testData, 8, 2) == strrev(getid3_ac3::syncword)) {
// This is probably AC-3 data
$getid3_temp = new getID3();
if ($isRegularAC3) {
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
$getid3_temp->info['avdataend'] = $info['avdataend'];
}
$getid3_ac3 = new getid3_ac3($getid3_temp);
if ($isRegularAC3) {
$getid3_ac3->Analyze();
} else {
// Dolby Digital WAV
// AC-3 content, but not encoded in same format as normal AC-3 file
// For one thing, byte order is swapped
$ac3_data = '';
for ($i = 0; $i < 28; $i += 2) {
$ac3_data .= substr($testData, 8 + $i + 1, 1);
$ac3_data .= substr($testData, 8 + $i + 0, 1);
}
$getid3_ac3->AnalyzeString($ac3_data);
}
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['ac3'] = $getid3_temp->info['ac3'];
if (!empty($getid3_temp->info['warning'])) {
foreach ($getid3_temp->info['warning'] as $newerror) {
$this->warning('getid3_ac3() says: [' . $newerror . ']');
}
}
}
unset($getid3_temp, $getid3_ac3);
} elseif (preg_match('/^(' . implode('|', array_map('preg_quote', getid3_dts::$syncwords)) . ')/', $testData)) {
// This is probably DTS data
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
$getid3_dts = new getid3_dts($getid3_temp);
$getid3_dts->Analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['dts'] = $getid3_temp->info['dts'];
$info['playtime_seconds'] = $getid3_temp->info['playtime_seconds'];
// may not match RIFF calculations since DTS-WAV often used 14/16 bit-word packing
if (!empty($getid3_temp->info['warning'])) {
foreach ($getid3_temp->info['warning'] as $newerror) {
$this->warning('getid3_dts() says: [' . $newerror . ']');
}
}
}
unset($getid3_temp, $getid3_dts);
} elseif (substr($testData, 0, 4) == 'wvpk') {
// This is WavPack data
$info['wavpack']['offset'] = $info['avdataoffset'];
$info['wavpack']['size'] = getid3_lib::LittleEndian2Int(substr($testData, 4, 4));
$this->parseWavPackHeader(substr($testData, 8, 28));
} else {
// This is some other kind of data (quite possibly just PCM)
// do nothing special, just skip it
}
$nextoffset = $info['avdataend'];
$this->fseek($nextoffset);
break;
case 'iXML':
case 'bext':
case 'cart':
case 'fmt ':
case 'strh':
case 'strf':
case 'indx':
case 'MEXT':
case 'DISP':
// always read data in
// always read data in
case 'JUNK':
// should be: never read data in
// but some programs write their version strings in a JUNK chunk (e.g. VirtualDub, AVIdemux, etc)
if ($chunksize < 1048576) {
if ($chunksize > 0) {
$RIFFchunk[$chunkname][$thisindex]['data'] = $this->fread($chunksize);
if ($chunkname == 'JUNK') {
if (preg_match('#^([\\x20-\\x7F]+)#', $RIFFchunk[$chunkname][$thisindex]['data'], $matches)) {
// only keep text characters [chr(32)-chr(127)]
$info['riff']['comments']['junk'][] = trim($matches[1]);
}
// but if nothing there, ignore
// remove the key in either case
unset($RIFFchunk[$chunkname][$thisindex]['data']);
}
}
} else {
$this->warning('Chunk "' . $chunkname . '" at offset ' . $this->ftell() . ' is unexpectedly larger than 1MB (claims to be ' . number_format($chunksize) . ' bytes), skipping data');
$this->fseek($chunksize, SEEK_CUR);
}
break;
//case 'IDVX':
// $info['divxtag']['comments'] = self::ParseDIVXTAG($this->fread($chunksize));
// break;
//case 'IDVX':
// $info['divxtag']['comments'] = self::ParseDIVXTAG($this->fread($chunksize));
// break;
default:
if (!empty($LISTchunkParent) && $RIFFchunk[$chunkname][$thisindex]['offset'] + $RIFFchunk[$chunkname][$thisindex]['size'] <= $LISTchunkMaxOffset) {
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['offset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['size'] = $RIFFchunk[$chunkname][$thisindex]['size'];
unset($RIFFchunk[$chunkname][$thisindex]['offset']);
unset($RIFFchunk[$chunkname][$thisindex]['size']);
if (isset($RIFFchunk[$chunkname][$thisindex]) && empty($RIFFchunk[$chunkname][$thisindex])) {
unset($RIFFchunk[$chunkname][$thisindex]);
}
if (isset($RIFFchunk[$chunkname]) && empty($RIFFchunk[$chunkname])) {
unset($RIFFchunk[$chunkname]);
}
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['data'] = $this->fread($chunksize);
} elseif ($chunksize < 2048) {
// only read data in if smaller than 2kB
$RIFFchunk[$chunkname][$thisindex]['data'] = $this->fread($chunksize);
} else {
$this->fseek($chunksize, SEEK_CUR);
}
break;
}
break;
}
}
} catch (getid3_exception $e) {
if ($e->getCode() == 10) {
$this->warning('RIFF parser: ' . $e->getMessage());
} else {
throw $e;
}
}
return $RIFFchunk;
}
function getid3_quicktime(&$fd, &$ThisFileInfo, $ReturnAtomData = true, $ParseAllPossibleAtoms = false)
{
$ThisFileInfo['fileformat'] = 'quicktime';
$ThisFileInfo['quicktime']['hinting'] = false;
fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
$offset = 0;
$atomcounter = 0;
while ($offset < $ThisFileInfo['avdataend']) {
if ($offset >= pow(2, 31)) {
$ThisFileInfo['error'][] = 'Unable to parse atom at offset ' . $offset . ' because beyond 2GB limit of PHP filesystem functions';
break;
}
fseek($fd, $offset, SEEK_SET);
$AtomHeader = fread($fd, 8);
$atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
$atomname = substr($AtomHeader, 4, 4);
// 64-bit MOV patch by jlegate�ktnc*com
if ($atomsize == 1) {
$atomsize = getid3_lib::BigEndian2Int(fread($fd, 8));
}
$ThisFileInfo['quicktime'][$atomname]['name'] = $atomname;
$ThisFileInfo['quicktime'][$atomname]['size'] = $atomsize;
$ThisFileInfo['quicktime'][$atomname]['offset'] = $offset;
if ($offset + $atomsize > $ThisFileInfo['avdataend']) {
$ThisFileInfo['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($ThisFileInfo['avdataend_tmp']) || $ThisFileInfo['quicktime'][$atomname]['size'] > $ThisFileInfo['avdataend_tmp'] - $ThisFileInfo['avdataoffset'])) {
$ThisFileInfo['avdataoffset'] = $ThisFileInfo['quicktime'][$atomname]['offset'] + 8;
$OldAVDataEnd = $ThisFileInfo['avdataend'];
$ThisFileInfo['avdataend'] = $ThisFileInfo['quicktime'][$atomname]['offset'] + $ThisFileInfo['quicktime'][$atomname]['size'];
if (getid3_mp3::MPEGaudioHeaderValid(getid3_mp3::MPEGaudioHeaderDecode(fread($fd, 4)))) {
getid3_mp3::getOnlyMPEGaudioInfo($fd, $ThisFileInfo, $ThisFileInfo['avdataoffset'], false);
if (isset($ThisFileInfo['mpeg']['audio'])) {
$ThisFileInfo['audio']['dataformat'] = 'mp3';
$ThisFileInfo['audio']['codec'] = !empty($ThisFileInfo['mpeg']['audio']['encoder']) ? $ThisFileInfo['mpeg']['audio']['encoder'] : (!empty($ThisFileInfo['mpeg']['audio']['codec']) ? $ThisFileInfo['mpeg']['audio']['codec'] : (!empty($ThisFileInfo['mpeg']['audio']['LAME']) ? 'LAME' : 'mp3'));
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['mpeg']['audio']['sample_rate'];
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['mpeg']['audio']['channels'];
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['mpeg']['audio']['bitrate'];
$ThisFileInfo['audio']['bitrate_mode'] = strtolower($ThisFileInfo['mpeg']['audio']['bitrate_mode']);
$ThisFileInfo['bitrate'] = $ThisFileInfo['audio']['bitrate'];
}
}
$ThisFileInfo['avdataend'] = $OldAVDataEnd;
unset($OldAVDataEnd);
}
break;
case 'free':
// FREE space atom
// FREE space atom
case 'skip':
// SKIP atom
// 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();
$ThisFileInfo['quicktime'][$atomname] = $this->QuicktimeParseAtom($atomname, $atomsize, fread($fd, $atomsize), $ThisFileInfo, $offset, $atomHierarchy, $ParseAllPossibleAtoms);
break;
}
$offset += $atomsize;
$atomcounter++;
}
if (!empty($ThisFileInfo['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
$ThisFileInfo['avdataend'] = $ThisFileInfo['avdataend_tmp'];
unset($ThisFileInfo['avdataend_tmp']);
}
if (!isset($ThisFileInfo['bitrate']) && isset($ThisFileInfo['playtime_seconds'])) {
$ThisFileInfo['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['playtime_seconds'];
}
if (isset($ThisFileInfo['bitrate']) && !isset($ThisFileInfo['audio']['bitrate']) && !isset($ThisFileInfo['quicktime']['video'])) {
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['bitrate'];
}
if (@$ThisFileInfo['playtime_seconds'] && !isset($ThisFileInfo['video']['frame_rate']) && !empty($ThisFileInfo['quicktime']['stts_framecount'])) {
foreach ($ThisFileInfo['quicktime']['stts_framecount'] as $key => $samples_count) {
$samples_per_second = $samples_count / $ThisFileInfo['playtime_seconds'];
if ($samples_per_second > 240) {
// has to be audio samples
} else {
$ThisFileInfo['video']['frame_rate'] = $samples_per_second;
break;
}
}
}
if ($ThisFileInfo['audio']['dataformat'] == 'mp4' && empty($ThisFileInfo['video']['resolution_x'])) {
$ThisFileInfo['fileformat'] = 'mp4';
$ThisFileInfo['mime_type'] = 'audio/mp4';
unset($ThisFileInfo['video']['dataformat']);
}
if (!$ReturnAtomData) {
unset($ThisFileInfo['quicktime']['moov']);
}
if (empty($ThisFileInfo['audio']['dataformat']) && !empty($ThisFileInfo['quicktime']['audio'])) {
$ThisFileInfo['audio']['dataformat'] = 'quicktime';
}
if (empty($ThisFileInfo['video']['dataformat']) && !empty($ThisFileInfo['quicktime']['video'])) {
$ThisFileInfo['video']['dataformat'] = 'quicktime';
}
return true;
}
function ParseRIFF($startoffset, $maxoffset)
{
$info =& $this->getid3->info;
$maxoffset = min($maxoffset, $info['avdataend']);
$RIFFchunk = false;
$FoundAllChunksWeNeed = false;
if ($startoffset < 0 || !getid3_lib::intValueSupported($startoffset)) {
$info['warning'][] = 'Unable to ParseRIFF() at ' . $startoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
return false;
}
$max_usable_offset = min(PHP_INT_MAX - 1024, $maxoffset);
if ($maxoffset > $max_usable_offset) {
$info['warning'][] = 'ParseRIFF() may return incomplete data for chunk starting at ' . $startoffset . ' because beyond it extends to ' . $maxoffset . ', which is beyond the ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
}
fseek($this->getid3->fp, $startoffset, SEEK_SET);
while (ftell($this->getid3->fp) < $max_usable_offset) {
$chunknamesize = fread($this->getid3->fp, 8);
$chunkname = substr($chunknamesize, 0, 4);
$chunksize = $this->EitherEndian2Int(substr($chunknamesize, 4, 4));
if (strlen($chunkname) < 4) {
$info['error'][] = 'Expecting chunk name at offset ' . (ftell($this->getid3->fp) - 4) . ' but found nothing. Aborting RIFF parsing.';
break;
}
if ($chunksize == 0) {
if ($chunkname == 'JUNK') {
// we'll allow zero-size JUNK frames
} else {
$info['warning'][] = 'Chunk size at offset ' . (ftell($this->getid3->fp) - 4) . ' is zero. Aborting RIFF parsing.';
break;
}
}
if ($chunksize % 2 != 0) {
// all structures are packed on word boundaries
$chunksize++;
}
switch ($chunkname) {
case 'LIST':
$listname = fread($this->getid3->fp, 4);
if (preg_match('#^(movi|rec )$#i', $listname)) {
$RIFFchunk[$listname]['offset'] = ftell($this->getid3->fp) - 4;
$RIFFchunk[$listname]['size'] = $chunksize;
if ($FoundAllChunksWeNeed) {
// skip over
} else {
$WhereWeWere = ftell($this->getid3->fp);
$AudioChunkHeader = fread($this->getid3->fp, 12);
$AudioChunkStreamNum = substr($AudioChunkHeader, 0, 2);
$AudioChunkStreamType = substr($AudioChunkHeader, 2, 2);
$AudioChunkSize = getid3_lib::LittleEndian2Int(substr($AudioChunkHeader, 4, 4));
if ($AudioChunkStreamType == 'wb') {
$FirstFourBytes = substr($AudioChunkHeader, 8, 4);
if (preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', $FirstFourBytes)) {
// MP3
if (getid3_mp3::MPEGaudioHeaderBytesValid($FirstFourBytes)) {
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = ftell($this->getid3->fp) - 4;
$getid3_temp->info['avdataend'] = ftell($this->getid3->fp) + $AudioChunkSize;
$getid3_mp3 = new getid3_mp3($getid3_temp);
$getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
if (isset($getid3_temp->info['mpeg']['audio'])) {
$info['mpeg']['audio'] = $getid3_temp->info['mpeg']['audio'];
$info['audio'] = $getid3_temp->info['audio'];
$info['audio']['dataformat'] = 'mp' . $info['mpeg']['audio']['layer'];
$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_temp, $getid3_mp3);
}
} elseif (preg_match('/^\\x0B\\x77/s', $FirstFourBytes)) {
// AC3
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = ftell($this->getid3->fp) - 4;
$getid3_temp->info['avdataend'] = ftell($this->getid3->fp) + $AudioChunkSize;
$getid3_ac3 = new getid3_ac3($getid3_temp);
$getid3_ac3->Analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['ac3'] = $getid3_temp->info['ac3'];
if (!empty($getid3_temp->info['warning'])) {
foreach ($getid3_temp->info['warning'] as $key => $value) {
$info['warning'][] = $value;
}
}
}
unset($getid3_temp, $getid3_ac3);
}
}
}
$FoundAllChunksWeNeed = true;
fseek($this->getid3->fp, $WhereWeWere, SEEK_SET);
}
fseek($this->getid3->fp, $chunksize - 4, SEEK_CUR);
//} elseif (preg_match('#^[0-9]{2}(wb|pc|dc|db)$#i', $listname)) {
//
// // data chunk, ignore
//
} else {
if (!isset($RIFFchunk[$listname])) {
$RIFFchunk[$listname] = array();
}
$LISTchunkParent = $listname;
$LISTchunkMaxOffset = ftell($this->getid3->fp) - 4 + $chunksize;
if ($parsedChunk = $this->ParseRIFF(ftell($this->getid3->fp), ftell($this->getid3->fp) + $chunksize - 4)) {
$RIFFchunk[$listname] = array_merge_recursive($RIFFchunk[$listname], $parsedChunk);
}
}
break;
default:
if (preg_match('#^[0-9]{2}(wb|pc|dc|db)$#', $chunkname)) {
$nextoffset = ftell($this->getid3->fp) + $chunksize;
if ($nextoffset < 0 || !getid3_lib::intValueSupported($nextoffset)) {
$info['warning'][] = 'Unable to parse chunk at offset ' . $nextoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break 2;
}
fseek($this->getid3->fp, $nextoffset, SEEK_SET);
break;
}
$thisindex = 0;
if (isset($RIFFchunk[$chunkname]) && is_array($RIFFchunk[$chunkname])) {
$thisindex = count($RIFFchunk[$chunkname]);
}
$RIFFchunk[$chunkname][$thisindex]['offset'] = ftell($this->getid3->fp) - 8;
$RIFFchunk[$chunkname][$thisindex]['size'] = $chunksize;
switch ($chunkname) {
case 'data':
$info['avdataoffset'] = ftell($this->getid3->fp);
$info['avdataend'] = $info['avdataoffset'] + $chunksize;
$RIFFdataChunkContentsTest = fread($this->getid3->fp, 36);
if (strlen($RIFFdataChunkContentsTest) > 0 && preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', substr($RIFFdataChunkContentsTest, 0, 4))) {
// Probably is MP3 data
if (getid3_mp3::MPEGaudioHeaderBytesValid(substr($RIFFdataChunkContentsTest, 0, 4))) {
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$getid3_temp->info['avdataend'] = $RIFFchunk[$chunkname][$thisindex]['offset'] + $RIFFchunk[$chunkname][$thisindex]['size'];
$getid3_mp3 = new getid3_mp3($getid3_temp);
$getid3_mp3->getOnlyMPEGaudioInfo($RIFFchunk[$chunkname][$thisindex]['offset'], false);
if (empty($getid3_temp->info['error'])) {
$info['mpeg'] = $getid3_temp->info['mpeg'];
$info['audio'] = $getid3_temp->info['audio'];
}
unset($getid3_temp, $getid3_mp3);
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 0, 2) == "\vw") {
// This is probably AC-3 data
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$getid3_temp->info['avdataend'] = $RIFFchunk[$chunkname][$thisindex]['offset'] + $RIFFchunk[$chunkname][$thisindex]['size'];
$getid3_ac3 = new getid3_ac3($getid3_temp);
$getid3_ac3->Analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['ac3'] = $getid3_temp->info['ac3'];
$info['warning'] = $getid3_temp->info['warning'];
}
unset($getid3_temp, $getid3_ac3);
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 8, 2) == "w\v") {
// Dolby Digital WAV
// AC-3 content, but not encoded in same format as normal AC-3 file
// For one thing, byte order is swapped
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
// ok to use tmpfile here - only 56 bytes
if ($RIFFtempfilename = tempnam(GETID3_TEMP_DIR, 'id3')) {
if ($fd_temp = fopen($RIFFtempfilename, 'wb')) {
for ($i = 0; $i < 28; $i += 2) {
// swap byte order
fwrite($fd_temp, substr($RIFFdataChunkContentsTest, 8 + $i + 1, 1));
fwrite($fd_temp, substr($RIFFdataChunkContentsTest, 8 + $i + 0, 1));
}
fclose($fd_temp);
$getid3_temp = new getID3();
$getid3_temp->openfile($RIFFtempfilename);
$getid3_temp->info['avdataend'] = 20;
$getid3_ac3 = new getid3_ac3($getid3_temp);
$getid3_ac3->Analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['ac3'] = $getid3_temp->info['ac3'];
$info['warning'] = $getid3_temp->info['warning'];
} else {
$info['error'][] = 'Error parsing Dolby Digital WAV (AC3-in-RIFF): ' . implode(';', $getid3_temp->info['error']);
}
unset($getid3_ac3, $getid3_temp);
} else {
$info['error'][] = 'Error parsing Dolby Digital WAV (AC3-in-RIFF): failed to write temp file';
}
unlink($RIFFtempfilename);
} else {
$info['error'][] = 'Error parsing Dolby Digital WAV (AC3-in-RIFF): failed to write temp file';
}
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 0, 4) == 'wvpk') {
// This is WavPack data
$info['wavpack']['offset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$info['wavpack']['size'] = getid3_lib::LittleEndian2Int(substr($RIFFdataChunkContentsTest, 4, 4));
$this->RIFFparseWavPackHeader(substr($RIFFdataChunkContentsTest, 8, 28));
} else {
// This is some other kind of data (quite possibly just PCM)
// do nothing special, just skip it
}
$nextoffset = $RIFFchunk[$chunkname][$thisindex]['offset'] + 8 + $chunksize;
if ($nextoffset < 0 || !getid3_lib::intValueSupported($nextoffset)) {
$info['warning'][] = 'Unable to parse chunk at offset ' . $nextoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break 3;
}
fseek($this->getid3->fp, $RIFFchunk[$chunkname][$thisindex]['offset'] + 8 + $chunksize, SEEK_SET);
break;
case 'iXML':
case 'bext':
case 'cart':
case 'fmt ':
case 'strh':
case 'strf':
case 'indx':
case 'MEXT':
case 'DISP':
// always read data in
// always read data in
case 'JUNK':
// should be: never read data in
// but some programs write their version strings in a JUNK chunk (e.g. VirtualDub, AVIdemux, etc)
if ($chunksize < 1048576) {
if ($chunksize > 0) {
$RIFFchunk[$chunkname][$thisindex]['data'] = fread($this->getid3->fp, $chunksize);
if ($chunkname == 'JUNK') {
if (preg_match('#^([\\x20-\\x7F]+)#', $RIFFchunk[$chunkname][$thisindex]['data'], $matches)) {
// only keep text characters [chr(32)-chr(127)]
$info['riff']['comments']['junk'][] = trim($matches[1]);
}
// but if nothing there, ignore
// remove the key in either case
unset($RIFFchunk[$chunkname][$thisindex]['data']);
}
}
} else {
$info['warning'][] = 'chunk "' . $chunkname . '" at offset ' . ftell($this->getid3->fp) . ' is unexpectedly larger than 1MB (claims to be ' . number_format($chunksize) . ' bytes), skipping data';
$nextoffset = ftell($this->getid3->fp) + $chunksize;
if ($nextoffset < 0 || !getid3_lib::intValueSupported($nextoffset)) {
$info['warning'][] = 'Unable to parse chunk at offset ' . $nextoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break 3;
}
fseek($this->getid3->fp, $nextoffset, SEEK_SET);
}
break;
default:
if (!preg_match('#^[0-9]{2}(wb|pc|dc|db)$#', $chunkname) && !empty($LISTchunkParent) && $RIFFchunk[$chunkname][$thisindex]['offset'] + $RIFFchunk[$chunkname][$thisindex]['size'] <= $LISTchunkMaxOffset) {
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['offset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['size'] = $RIFFchunk[$chunkname][$thisindex]['size'];
unset($RIFFchunk[$chunkname][$thisindex]['offset']);
unset($RIFFchunk[$chunkname][$thisindex]['size']);
if (isset($RIFFchunk[$chunkname][$thisindex]) && empty($RIFFchunk[$chunkname][$thisindex])) {
unset($RIFFchunk[$chunkname][$thisindex]);
}
if (isset($RIFFchunk[$chunkname]) && empty($RIFFchunk[$chunkname])) {
unset($RIFFchunk[$chunkname]);
}
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['data'] = fread($this->getid3->fp, $chunksize);
//} elseif (in_array($chunkname, array('ID3 ')) || (($chunksize > 0) && ($chunksize < 2048))) {
} elseif ($chunksize > 0 && $chunksize < 2048) {
// only read data in if smaller than 2kB
$RIFFchunk[$chunkname][$thisindex]['data'] = fread($this->getid3->fp, $chunksize);
} else {
$nextoffset = ftell($this->getid3->fp) + $chunksize;
if ($nextoffset < 0 || !getid3_lib::intValueSupported($nextoffset)) {
$info['warning'][] = 'Unable to parse chunk at offset ' . $nextoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break 3;
}
fseek($this->getid3->fp, $nextoffset, SEEK_SET);
}
break;
}
break;
}
}
return $RIFFchunk;
}
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
// FREE space atom
case 'skip':
// SKIP atom
// 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'])) {
$info['video']['dataformat'] = 'quicktime';
}
return true;
}
static function ParseRIFF(&$fd, $startoffset, $maxoffset, &$ThisFileInfo)
{
$maxoffset = min($maxoffset, $ThisFileInfo['avdataend']);
$RIFFchunk = false;
$FoundAllChunksWeNeed = false;
if ($startoffset < 0 || !getid3_lib::intValueSupported($startoffset)) {
$ThisFileInfo['warning'][] = 'Unable to ParseRIFF() at ' . $startoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
return false;
}
$max_usable_offset = min(PHP_INT_MAX - 1024, $maxoffset);
if ($maxoffset > $max_usable_offset) {
$ThisFileInfo['warning'][] = 'ParseRIFF() may return incomplete data for chunk starting at ' . $startoffset . ' because beyond it extends to ' . $maxoffset . ', which is beyond the ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
}
fseek($fd, $startoffset, SEEK_SET);
while (ftell($fd) < $max_usable_offset) {
$chunknamesize = fread($fd, 8);
$chunkname = substr($chunknamesize, 0, 4);
$chunksize = getid3_riff::EitherEndian2Int($ThisFileInfo, substr($chunknamesize, 4, 4));
if (strlen($chunkname) < 4) {
$ThisFileInfo['error'][] = 'Expecting chunk name at offset ' . (ftell($fd) - 4) . ' but found nothing. Aborting RIFF parsing.';
break;
}
if ($chunksize == 0) {
if ($chunkname == 'JUNK') {
// we'll allow zero-size JUNK frames
} else {
$ThisFileInfo['warning'][] = 'Chunk size at offset ' . (ftell($fd) - 4) . ' is zero. Aborting RIFF parsing.';
break;
}
}
if ($chunksize % 2 != 0) {
// all structures are packed on word boundaries
$chunksize++;
}
switch ($chunkname) {
case 'LIST':
$listname = fread($fd, 4);
if (preg_match('#^(movi|rec )$#i', $listname)) {
$RIFFchunk[$listname]['offset'] = ftell($fd) - 4;
$RIFFchunk[$listname]['size'] = $chunksize;
if ($FoundAllChunksWeNeed) {
// skip over
} else {
$WhereWeWere = ftell($fd);
$AudioChunkHeader = fread($fd, 12);
$AudioChunkStreamNum = substr($AudioChunkHeader, 0, 2);
$AudioChunkStreamType = substr($AudioChunkHeader, 2, 2);
$AudioChunkSize = getid3_lib::LittleEndian2Int(substr($AudioChunkHeader, 4, 4));
if ($AudioChunkStreamType == 'wb') {
$FirstFourBytes = substr($AudioChunkHeader, 8, 4);
if (preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', $FirstFourBytes)) {
// MP3
if (getid3_mp3::MPEGaudioHeaderBytesValid($FirstFourBytes)) {
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = ftell($fd) - 4;
$dummy['avdataend'] = ftell($fd) + $AudioChunkSize;
getid3_mp3::getOnlyMPEGaudioInfo($fd, $dummy, $dummy['avdataoffset'], false);
if (isset($dummy['mpeg']['audio'])) {
$ThisFileInfo = $dummy;
$ThisFileInfo['audio']['dataformat'] = 'mp' . $ThisFileInfo['mpeg']['audio']['layer'];
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['mpeg']['audio']['sample_rate'];
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['mpeg']['audio']['channels'];
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['mpeg']['audio']['bitrate'];
$ThisFileInfo['bitrate'] = $ThisFileInfo['audio']['bitrate'];
$ThisFileInfo['audio']['bitrate_mode'] = strtolower($ThisFileInfo['mpeg']['audio']['bitrate_mode']);
}
unset($dummy);
}
} elseif (preg_match('/^\\x0B\\x77/s', $FirstFourBytes)) {
// AC3
$GETID3_ERRORARRAY =& $ThisFileInfo['warning'];
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = ftell($fd) - 4;
$dummy['avdataend'] = ftell($fd) + $AudioChunkSize;
$dummy['error'] = array();
$ac3_tag = new getid3_ac3($fd, $dummy);
if (empty($dummy['error'])) {
$ThisFileInfo['audio'] = $dummy['audio'];
$ThisFileInfo['ac3'] = $dummy['ac3'];
$ThisFileInfo['warning'] = $dummy['warning'];
}
unset($ac3_tag);
}
}
}
$FoundAllChunksWeNeed = true;
fseek($fd, $WhereWeWere, SEEK_SET);
}
fseek($fd, $chunksize - 4, SEEK_CUR);
//} elseif (preg_match('#^[0-9]{2}(wb|pc|dc|db)$#i', $listname)) {
//
// // data chunk, ignore
//
} else {
if (!isset($RIFFchunk[$listname])) {
$RIFFchunk[$listname] = array();
}
$LISTchunkParent = $listname;
$LISTchunkMaxOffset = ftell($fd) - 4 + $chunksize;
if ($parsedChunk = getid3_riff::ParseRIFF($fd, ftell($fd), ftell($fd) + $chunksize - 4, $ThisFileInfo)) {
$RIFFchunk[$listname] = array_merge_recursive($RIFFchunk[$listname], $parsedChunk);
}
}
break;
default:
if (preg_match('#^[0-9]{2}(wb|pc|dc|db)$#', $chunkname)) {
$nextoffset = ftell($fd) + $chunksize;
if ($nextoffset < 0 || !getid3_lib::intValueSupported($nextoffset)) {
$ThisFileInfo['warning'][] = 'Unable to parse chunk at offset ' . $nextoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break 2;
}
fseek($fd, $nextoffset, SEEK_SET);
break;
}
$thisindex = 0;
if (isset($RIFFchunk[$chunkname]) && is_array($RIFFchunk[$chunkname])) {
$thisindex = count($RIFFchunk[$chunkname]);
}
$RIFFchunk[$chunkname][$thisindex]['offset'] = ftell($fd) - 8;
$RIFFchunk[$chunkname][$thisindex]['size'] = $chunksize;
switch ($chunkname) {
case 'data':
$ThisFileInfo['avdataoffset'] = ftell($fd);
$ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $chunksize;
$RIFFdataChunkContentsTest = fread($fd, 36);
if (strlen($RIFFdataChunkContentsTest) > 0 && preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', substr($RIFFdataChunkContentsTest, 0, 4))) {
// Probably is MP3 data
if (getid3_mp3::MPEGaudioHeaderBytesValid(substr($RIFFdataChunkContentsTest, 0, 4))) {
$dummy = $ThisFileInfo;
// copy info array, only use if there's no error
$getid3_mp3 = new getid3_mp3($fd, $dummy);
$dummy = $ThisFileInfo;
// copy info array, only use if there's no error
$getid3_mp3->getOnlyMPEGaudioInfo($fd, $dummy, $RIFFchunk[$chunkname][$thisindex]['offset'], false);
// use dummy array unless error
if (empty($dummy['error'])) {
$ThisFileInfo = $dummy;
}
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 0, 2) == "\vw") {
// This is probably AC-3 data
$GETID3_ERRORARRAY =& $ThisFileInfo['warning'];
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$dummy['avdataend'] = $dummy['avdataoffset'] + $RIFFchunk[$chunkname][$thisindex]['size'];
$dummy['error'] = array();
$ac3_tag = new getid3_ac3($fd, $dummy);
if (empty($dummy['error'])) {
$ThisFileInfo['audio'] = $dummy['audio'];
$ThisFileInfo['ac3'] = $dummy['ac3'];
$ThisFileInfo['warning'] = $dummy['warning'];
}
unset($ac3_tag);
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 8, 2) == "w\v") {
// Dolby Digital WAV
// AC-3 content, but not encoded in same format as normal AC-3 file
// For one thing, byte order is swapped
$GETID3_ERRORARRAY =& $ThisFileInfo['warning'];
if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.audio.ac3.php', __FILE__, false)) {
// ok to use tmpfile here - only 56 bytes
if ($fd_temp = tmpfile()) {
for ($i = 0; $i < 28; $i += 2) {
// swap byte order
fwrite($fd_temp, substr($RIFFdataChunkContentsTest, 8 + $i + 1, 1));
fwrite($fd_temp, substr($RIFFdataChunkContentsTest, 8 + $i + 0, 1));
}
$dummy = $ThisFileInfo;
$dummy['avdataoffset'] = 0;
$dummy['avdataend'] = 20;
$dummy['error'] = array();
$ac3_tag = new getid3_ac3($fd_temp, $dummy);
fclose($fd_temp);
if (empty($dummy['error'])) {
$ThisFileInfo['audio'] = $dummy['audio'];
$ThisFileInfo['ac3'] = $dummy['ac3'];
$ThisFileInfo['warning'] = $dummy['warning'];
} else {
$ThisFileInfo['error'][] = 'Errors parsing DolbyDigital WAV: ' . explode(';', $dummy['error']);
}
unset($ac3_tag);
} else {
$ThisFileInfo['error'][] = 'Could not create temporary file to analyze DolbyDigital WAV';
}
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 0, 4) == 'wvpk') {
// This is WavPack data
$ThisFileInfo['wavpack']['offset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$ThisFileInfo['wavpack']['size'] = getid3_lib::LittleEndian2Int(substr($RIFFdataChunkContentsTest, 4, 4));
getid3_riff::RIFFparseWavPackHeader(substr($RIFFdataChunkContentsTest, 8, 28), $ThisFileInfo);
} else {
// This is some other kind of data (quite possibly just PCM)
// do nothing special, just skip it
}
$nextoffset = $RIFFchunk[$chunkname][$thisindex]['offset'] + 8 + $chunksize;
if ($nextoffset < 0 || !getid3_lib::intValueSupported($nextoffset)) {
$ThisFileInfo['warning'][] = 'Unable to parse chunk at offset ' . $nextoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break 3;
}
fseek($fd, $RIFFchunk[$chunkname][$thisindex]['offset'] + 8 + $chunksize, SEEK_SET);
break;
case 'bext':
case 'cart':
case 'fmt ':
case 'strh':
case 'strf':
case 'indx':
case 'MEXT':
case 'DISP':
// always read data in
$RIFFchunk[$chunkname][$thisindex]['data'] = fread($fd, $chunksize);
break;
case 'JUNK':
// never read data in
$nextoffset = ftell($fd) + $chunksize;
if ($nextoffset < 0 || !getid3_lib::intValueSupported($nextoffset)) {
$ThisFileInfo['warning'][] = 'Unable to parse chunk at offset ' . $nextoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break 3;
}
fseek($fd, $nextoffset, SEEK_SET);
break;
default:
if (!preg_match('#^[0-9]{2}(wb|pc|dc|db)$#', $chunkname) && !empty($LISTchunkParent) && $RIFFchunk[$chunkname][$thisindex]['offset'] + $RIFFchunk[$chunkname][$thisindex]['size'] <= $LISTchunkMaxOffset) {
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['offset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['size'] = $RIFFchunk[$chunkname][$thisindex]['size'];
unset($RIFFchunk[$chunkname][$thisindex]['offset']);
unset($RIFFchunk[$chunkname][$thisindex]['size']);
if (isset($RIFFchunk[$chunkname][$thisindex]) && empty($RIFFchunk[$chunkname][$thisindex])) {
unset($RIFFchunk[$chunkname][$thisindex]);
}
if (isset($RIFFchunk[$chunkname]) && empty($RIFFchunk[$chunkname])) {
unset($RIFFchunk[$chunkname]);
}
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['data'] = fread($fd, $chunksize);
} elseif ($chunksize > 0 && $chunksize < 2048) {
// only read data in if smaller than 2kB
$RIFFchunk[$chunkname][$thisindex]['data'] = fread($fd, $chunksize);
} else {
$nextoffset = ftell($fd) + $chunksize;
if ($nextoffset < 0 || !getid3_lib::intValueSupported($nextoffset)) {
$ThisFileInfo['warning'][] = 'Unable to parse chunk at offset ' . $nextoffset . ' because beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB limit of PHP filesystem functions';
break 3;
}
fseek($fd, $nextoffset, SEEK_SET);
}
break;
}
break;
}
}
return $RIFFchunk;
}
public function ParseRIFF($startoffset, $maxoffset)
{
$info =& $this->getid3->info;
$RIFFchunk = false;
$FoundAllChunksWeNeed = false;
try {
$this->fseek($startoffset);
$maxoffset = min($maxoffset, $info['avdataend']);
while ($this->ftell() < $maxoffset) {
$chunknamesize = $this->fread(8);
$chunkname = substr($chunknamesize, 0, 4);
$chunksize = $this->EitherEndian2Int(substr($chunknamesize, 4, 4));
if (strlen(trim($chunkname, "")) < 4) {
$this->error('Expecting chunk name at offset ' . ($this->ftell() - 8) . ' but found nothing. Aborting RIFF parsing.');
break;
}
if ($chunksize == 0 && $chunkname != 'JUNK') {
$this->warning('Chunk (' . $chunkname . ') size at offset ' . ($this->ftell() - 4) . ' is zero. Aborting RIFF parsing.');
break;
}
if ($chunksize % 2 != 0) {
// all structures are packed on word boundaries
$chunksize++;
}
switch ($chunkname) {
case 'LIST':
$listname = $this->fread(4);
if (preg_match('#^(movi|rec )$#i', $listname)) {
$RIFFchunk[$listname]['offset'] = $this->ftell() - 4;
$RIFFchunk[$listname]['size'] = $chunksize;
if (!$FoundAllChunksWeNeed) {
$WhereWeWere = $this->ftell();
$AudioChunkHeader = $this->fread(12);
$AudioChunkStreamNum = substr($AudioChunkHeader, 0, 2);
$AudioChunkStreamType = substr($AudioChunkHeader, 2, 2);
$AudioChunkSize = getid3_lib::LittleEndian2Int(substr($AudioChunkHeader, 4, 4));
if ($AudioChunkStreamType == 'wb') {
$FirstFourBytes = substr($AudioChunkHeader, 8, 4);
if (preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', $FirstFourBytes)) {
// MP3
if (getid3_mp3::MPEGaudioHeaderBytesValid($FirstFourBytes)) {
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $this->ftell() - 4;
$getid3_temp->info['avdataend'] = $this->ftell() + $AudioChunkSize;
$getid3_mp3 = new getid3_mp3($getid3_temp);
$getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
if (isset($getid3_temp->info['mpeg']['audio'])) {
$info['mpeg']['audio'] = $getid3_temp->info['mpeg']['audio'];
$info['audio'] = $getid3_temp->info['audio'];
$info['audio']['dataformat'] = 'mp' . $info['mpeg']['audio']['layer'];
$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_temp, $getid3_mp3);
}
} elseif (strpos($FirstFourBytes, getid3_ac3::syncword) === 0) {
// AC3
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $this->ftell() - 4;
$getid3_temp->info['avdataend'] = $this->ftell() + $AudioChunkSize;
$getid3_ac3 = new getid3_ac3($getid3_temp);
$getid3_ac3->Analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['ac3'] = $getid3_temp->info['ac3'];
if (!empty($getid3_temp->info['warning'])) {
foreach ($getid3_temp->info['warning'] as $key => $value) {
$info['warning'][] = $value;
}
}
}
unset($getid3_temp, $getid3_ac3);
}
}
$FoundAllChunksWeNeed = true;
$this->fseek($WhereWeWere);
}
$this->fseek($chunksize - 4, SEEK_CUR);
} else {
if (!isset($RIFFchunk[$listname])) {
$RIFFchunk[$listname] = array();
}
$LISTchunkParent = $listname;
$LISTchunkMaxOffset = $this->ftell() - 4 + $chunksize;
if ($parsedChunk = $this->ParseRIFF($this->ftell(), $LISTchunkMaxOffset)) {
$RIFFchunk[$listname] = array_merge_recursive($RIFFchunk[$listname], $parsedChunk);
}
}
break;
default:
if (preg_match('#^[0-9]{2}(wb|pc|dc|db)$#', $chunkname)) {
$this->fseek($chunksize, SEEK_CUR);
break;
}
$thisindex = 0;
if (isset($RIFFchunk[$chunkname]) && is_array($RIFFchunk[$chunkname])) {
$thisindex = count($RIFFchunk[$chunkname]);
}
$RIFFchunk[$chunkname][$thisindex]['offset'] = $this->ftell() - 8;
$RIFFchunk[$chunkname][$thisindex]['size'] = $chunksize;
switch ($chunkname) {
case 'data':
$info['avdataoffset'] = $this->ftell();
$info['avdataend'] = $info['avdataoffset'] + $chunksize;
$RIFFdataChunkContentsTest = $this->fread(36);
if (strlen($RIFFdataChunkContentsTest) > 0 && preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', substr($RIFFdataChunkContentsTest, 0, 4))) {
// Probably is MP3 data
if (getid3_mp3::MPEGaudioHeaderBytesValid(substr($RIFFdataChunkContentsTest, 0, 4))) {
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$getid3_temp->info['avdataend'] = $RIFFchunk[$chunkname][$thisindex]['offset'] + $RIFFchunk[$chunkname][$thisindex]['size'];
$getid3_mp3 = new getid3_mp3($getid3_temp);
$getid3_mp3->getOnlyMPEGaudioInfo($RIFFchunk[$chunkname][$thisindex]['offset'], false);
if (empty($getid3_temp->info['error'])) {
$info['mpeg'] = $getid3_temp->info['mpeg'];
$info['audio'] = $getid3_temp->info['audio'];
}
unset($getid3_temp, $getid3_mp3);
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 0, 2) == getid3_ac3::syncword) {
// This is probably AC-3 data
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info['avdataoffset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$getid3_temp->info['avdataend'] = $RIFFchunk[$chunkname][$thisindex]['offset'] + $RIFFchunk[$chunkname][$thisindex]['size'];
$getid3_ac3 = new getid3_ac3($getid3_temp);
$getid3_ac3->Analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['ac3'] = $getid3_temp->info['ac3'];
$info['warning'] = $getid3_temp->info['warning'];
}
unset($getid3_temp, $getid3_ac3);
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 8, 2) == getid3_ac3::syncword) {
// Dolby Digital WAV
// AC-3 content, but not encoded in same format as normal AC-3 file
// For one thing, byte order is swapped
if ($RIFFtempfilename = tempnam(GETID3_TEMP_DIR, 'id3')) {
// ok to use tmpfile here - only 56 bytes
if ($fd_temp = fopen($RIFFtempfilename, 'wb')) {
for ($i = 0; $i < 28; $i += 2) {
// swap byte order
fwrite($fd_temp, substr($RIFFdataChunkContentsTest, 8 + $i + 1, 1));
fwrite($fd_temp, substr($RIFFdataChunkContentsTest, 8 + $i + 0, 1));
}
fclose($fd_temp);
$getid3_temp = new getID3();
$getid3_temp->openfile($RIFFtempfilename);
$getid3_temp->info['avdataend'] = 20;
$getid3_ac3 = new getid3_ac3($getid3_temp);
$getid3_ac3->Analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['ac3'] = $getid3_temp->info['ac3'];
$info['warning'] = $getid3_temp->info['warning'];
} else {
$info['error'][] = 'Error parsing Dolby Digital WAV (AC3-in-RIFF): ' . implode(';', $getid3_temp->info['error']);
}
unset($getid3_ac3, $getid3_temp);
} else {
$info['error'][] = 'Error parsing Dolby Digital WAV (AC3-in-RIFF): failed to write temp file';
}
unlink($RIFFtempfilename);
} else {
$info['error'][] = 'Error parsing Dolby Digital WAV (AC3-in-RIFF): failed to write temp file';
}
} elseif (strlen($RIFFdataChunkContentsTest) > 0 && substr($RIFFdataChunkContentsTest, 0, 4) == 'wvpk') {
// This is WavPack data
$info['wavpack']['offset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$info['wavpack']['size'] = getid3_lib::LittleEndian2Int(substr($RIFFdataChunkContentsTest, 4, 4));
self::parseWavPackHeader(substr($RIFFdataChunkContentsTest, 8, 28));
} else {
// This is some other kind of data (quite possibly just PCM)
// do nothing special, just skip it
}
$nextoffset = $RIFFchunk[$chunkname][$thisindex]['offset'] + 8 + $chunksize;
$this->fseek($nextoffset);
break;
case 'iXML':
case 'bext':
case 'cart':
case 'fmt ':
case 'strh':
case 'strf':
case 'indx':
case 'MEXT':
case 'DISP':
// always read data in
// always read data in
case 'JUNK':
// should be: never read data in
// but some programs write their version strings in a JUNK chunk (e.g. VirtualDub, AVIdemux, etc)
if ($chunksize < 1048576) {
if ($chunksize > 0) {
$RIFFchunk[$chunkname][$thisindex]['data'] = $this->fread($chunksize);
if ($chunkname == 'JUNK') {
if (preg_match('#^([\\x20-\\x7F]+)#', $RIFFchunk[$chunkname][$thisindex]['data'], $matches)) {
// only keep text characters [chr(32)-chr(127)]
$info['riff']['comments']['junk'][] = trim($matches[1]);
}
// but if nothing there, ignore
// remove the key in either case
unset($RIFFchunk[$chunkname][$thisindex]['data']);
}
}
} else {
$this->warning('Chunk "' . $chunkname . '" at offset ' . $this->ftell() . ' is unexpectedly larger than 1MB (claims to be ' . number_format($chunksize) . ' bytes), skipping data');
$this->fseek($chunksize, SEEK_CUR);
}
break;
//case 'IDVX':
// $info['divxtag']['comments'] = self::ParseDIVXTAG($this->fread($chunksize));
// break;
//case 'IDVX':
// $info['divxtag']['comments'] = self::ParseDIVXTAG($this->fread($chunksize));
// break;
default:
if (!empty($LISTchunkParent) && $RIFFchunk[$chunkname][$thisindex]['offset'] + $RIFFchunk[$chunkname][$thisindex]['size'] <= $LISTchunkMaxOffset) {
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['offset'] = $RIFFchunk[$chunkname][$thisindex]['offset'];
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['size'] = $RIFFchunk[$chunkname][$thisindex]['size'];
unset($RIFFchunk[$chunkname][$thisindex]['offset']);
unset($RIFFchunk[$chunkname][$thisindex]['size']);
if (isset($RIFFchunk[$chunkname][$thisindex]) && empty($RIFFchunk[$chunkname][$thisindex])) {
unset($RIFFchunk[$chunkname][$thisindex]);
}
if (isset($RIFFchunk[$chunkname]) && empty($RIFFchunk[$chunkname])) {
unset($RIFFchunk[$chunkname]);
}
$RIFFchunk[$LISTchunkParent][$chunkname][$thisindex]['data'] = $this->fread($chunksize);
} elseif ($chunksize < 2048) {
// only read data in if smaller than 2kB
$RIFFchunk[$chunkname][$thisindex]['data'] = $this->fread($chunksize);
} else {
$this->fseek($chunksize, SEEK_CUR);
}
break;
}
break;
}
}
} catch (getid3_exception $e) {
if ($e->getCode() == 10) {
$this->warning('RIFF parser: ' . $e->getMessage());
} else {
throw $e;
}
}
return $RIFFchunk;
}
