/**
*
* @param type $startoffset
* @param type $maxoffset
* @return boolean
*/
public function ParseRIFF($startoffset, $maxoffset)
{
$info =& $this->getid3->info;
$maxoffset = min($maxoffset, $info['avdataend']);
$RIFFchunk = false;
$FoundAllChunksWeNeed = false;
if ($startoffset < 0 || !GetId3_Lib_Helper::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);
$AudioChunkSize = GetId3_Lib_Helper::LittleEndian2Int(substr($AudioChunkHeader, 4, 4));
if ($AudioChunkStreamType == 'wb') {
$FirstFourBytes = substr($AudioChunkHeader, 8, 4);
if (preg_match('/^\\xFF[\\xE2-\\xE7\\xF2-\\xF7\\xFA-\\xFF][\\x00-\\xEB]/s', $FirstFourBytes)) {
// MP3
if (GetId3_Module_Audio_Mp3::MPEGaudioHeaderBytesValid($FirstFourBytes)) {
$getid3_temp = new GetId3_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;
$getid3_mp3 = new GetId3_Module_Audio_Mp3($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 (class_exists('GetId3_Module_Audio_Ac3')) {
$getid3_temp = new GetId3_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;
$getid3_ac3 = new GetId3_Module_Audio_Ac3($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_Helper::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_Module_Audio_Mp3::MPEGaudioHeaderBytesValid(substr($RIFFdataChunkContentsTest, 0, 4))) {
$getid3_temp = new GetId3_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'];
$getid3_mp3 = new GetId3_Module_Audio_Mp3($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 (class_exists('GetId3_Module_Audio_Ac3')) {
$getid3_temp = new GetId3_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'];
$getid3_ac3 = new GetId3_Module_Audio_Ac3($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($RIFFdataChunkContentsTest, 8, 2) == "w\v") {
// Dolby Digital WAV
// AC-3 content, but not encoded in same format as normal AC-3 file
// For one thing, byte order is swapped
if (class_exists('GetId3_Module_Audio_Ac3')) {
// ok to use tmpfile here - only 56 bytes
if ($RIFFtempfilename = tempnam(GetId3_GetId3::getTempDir(), '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();
$getid3_temp->openfile($RIFFtempfilename);
$getid3_temp->info['avdataend'] = 20;
$getid3_ac3 = new GetId3_Module_Audio_Ac3($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'];
$info['wavpack']['size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($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_Helper::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_Helper::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_Helper::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;
}
/**
*
* @param type $endoffset
* @param type $version
* @param type $length
* @return boolean
* @link http://www.volweb.cz/str/tags.htm
*/
public function getLyrics3Data($endoffset, $version, $length)
{
$info =& $this->getid3->info;
if (!GetId3_Lib_Helper::intValueSupported($endoffset)) {
$info['warning'][] = 'Unable to check for Lyrics3 because file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
return false;
}
fseek($this->getid3->fp, $endoffset, SEEK_SET);
if ($length <= 0) {
return false;
}
$rawdata = fread($this->getid3->fp, $length);
$ParsedLyrics3['raw']['lyrics3version'] = $version;
$ParsedLyrics3['raw']['lyrics3tagsize'] = $length;
$ParsedLyrics3['tag_offset_start'] = $endoffset;
$ParsedLyrics3['tag_offset_end'] = $endoffset + $length - 1;
if (substr($rawdata, 0, 11) != 'LYRICSBEGIN') {
if (strpos($rawdata, 'LYRICSBEGIN') !== false) {
$info['warning'][] = '"LYRICSBEGIN" expected at ' . $endoffset . ' but actually found at ' . ($endoffset + strpos($rawdata, 'LYRICSBEGIN')) . ' - this is invalid for Lyrics3 v' . $version;
$info['avdataend'] = $endoffset + strpos($rawdata, 'LYRICSBEGIN');
$rawdata = substr($rawdata, strpos($rawdata, 'LYRICSBEGIN'));
$length = strlen($rawdata);
$ParsedLyrics3['tag_offset_start'] = $info['avdataend'];
$ParsedLyrics3['raw']['lyrics3tagsize'] = $length;
} else {
$info['error'][] = '"LYRICSBEGIN" expected at ' . $endoffset . ' but found "' . substr($rawdata, 0, 11) . '" instead';
return false;
}
}
switch ($version) {
case 1:
if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICSEND') {
$ParsedLyrics3['raw']['LYR'] = trim(substr($rawdata, 11, strlen($rawdata) - 11 - 9));
$this->Lyrics3LyricsTimestampParse($ParsedLyrics3);
} else {
$info['error'][] = '"LYRICSEND" expected at ' . (ftell($this->getid3->fp) - 11 + $length - 9) . ' but found "' . substr($rawdata, strlen($rawdata) - 9, 9) . '" instead';
return false;
}
break;
case 2:
if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICS200') {
$ParsedLyrics3['raw']['unparsed'] = substr($rawdata, 11, strlen($rawdata) - 11 - 9 - 6);
// LYRICSBEGIN + LYRICS200 + LSZ
$rawdata = $ParsedLyrics3['raw']['unparsed'];
while (strlen($rawdata) > 0) {
$fieldname = substr($rawdata, 0, 3);
$fieldsize = (int) substr($rawdata, 3, 5);
$ParsedLyrics3['raw'][$fieldname] = substr($rawdata, 8, $fieldsize);
$rawdata = substr($rawdata, 3 + 5 + $fieldsize);
}
if (isset($ParsedLyrics3['raw']['IND'])) {
$i = 0;
$flagnames = array('lyrics', 'timestamps', 'inhibitrandom');
foreach ($flagnames as $flagname) {
if (strlen($ParsedLyrics3['raw']['IND']) > $i++) {
$ParsedLyrics3['flags'][$flagname] = $this->IntString2Bool(substr($ParsedLyrics3['raw']['IND'], $i, 1 - 1));
}
}
}
$fieldnametranslation = array('ETT' => 'title', 'EAR' => 'artist', 'EAL' => 'album', 'INF' => 'comment', 'AUT' => 'author');
foreach ($fieldnametranslation as $key => $value) {
if (isset($ParsedLyrics3['raw'][$key])) {
$ParsedLyrics3['comments'][$value][] = trim($ParsedLyrics3['raw'][$key]);
}
}
if (isset($ParsedLyrics3['raw']['IMG'])) {
$imagestrings = explode("\r\n", $ParsedLyrics3['raw']['IMG']);
foreach ($imagestrings as $key => $imagestring) {
if (strpos($imagestring, '||') !== false) {
$imagearray = explode('||', $imagestring);
$ParsedLyrics3['images'][$key]['filename'] = isset($imagearray[0]) ? $imagearray[0] : '';
$ParsedLyrics3['images'][$key]['description'] = isset($imagearray[1]) ? $imagearray[1] : '';
$ParsedLyrics3['images'][$key]['timestamp'] = $this->Lyrics3Timestamp2Seconds(isset($imagearray[2]) ? $imagearray[2] : '');
}
}
}
if (isset($ParsedLyrics3['raw']['LYR'])) {
$this->Lyrics3LyricsTimestampParse($ParsedLyrics3);
}
} else {
$info['error'][] = '"LYRICS200" expected at ' . (ftell($this->getid3->fp) - 11 + $length - 9) . ' but found "' . substr($rawdata, strlen($rawdata) - 9, 9) . '" instead';
return false;
}
break;
default:
$info['error'][] = 'Cannot process Lyrics3 version ' . $version . ' (only v1 and v2)';
return false;
break;
}
if (isset($info['id3v1']['tag_offset_start']) && $info['id3v1']['tag_offset_start'] <= $ParsedLyrics3['tag_offset_end']) {
$info['warning'][] = 'ID3v1 tag information ignored since it appears to be a false synch in Lyrics3 tag data';
unset($info['id3v1']);
foreach ($info['warning'] as $key => $value) {
if ($value == 'Some ID3v1 fields do not use NULL characters for padding') {
unset($info['warning'][$key]);
sort($info['warning']);
break;
}
}
}
$info['lyrics3'] = $ParsedLyrics3;
return true;
}
public function RemoveID3v1()
{
// File MUST be writeable - CHMOD(646) at least
if (!empty($this->filename) && is_readable($this->filename) && is_writable($this->filename) && is_file($this->filename)) {
$this->setRealFileSize();
if ($this->filesize <= 0 || !GetId3_Lib_Helper::intValueSupported($this->filesize)) {
$this->errors[] = 'Unable to RemoveID3v1(' . $this->filename . ') because filesize (' . $this->filesize . ') is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
return false;
}
if ($fp_source = fopen($this->filename, 'r+b')) {
fseek($fp_source, -128, SEEK_END);
if (fread($fp_source, 3) == 'TAG') {
ftruncate($fp_source, $this->filesize - 128);
} else {
// no ID3v1 tag to begin with - do nothing
}
fclose($fp_source);
return true;
} else {
$this->errors[] = 'Could not fopen(' . $this->filename . ', "r+b")';
}
} else {
$this->errors[] = $this->filename . ' is not writeable';
}
return false;
}
/**
*
* @staticvar array $decbin
* @param type $MaxFramesToScan
* @param type $ReturnExtendedInfo
* @return boolean
*/
public function getAACADTSheaderFilepointer($MaxFramesToScan = 1000000, $ReturnExtendedInfo = false)
{
$info =& $this->getid3->info;
// based loosely on code from AACfile by Jurgen Faul <jfaulØgmx.de>
// http://jfaul.de/atl or http://j-faul.virtualave.net/atl/atl.html
// http://faac.sourceforge.net/wiki/index.php?page=ADTS // dead link
// http://wiki.multimedia.cx/index.php?title=ADTS
// * ADTS Fixed Header: these don't change from frame to frame
// syncword 12 always: '111111111111'
// ID 1 0: MPEG-4, 1: MPEG-2
// MPEG layer 2 If you send AAC in MPEG-TS, set to 0
// protection_absent 1 0: CRC present; 1: no CRC
// profile 2 0: AAC Main; 1: AAC LC (Low Complexity); 2: AAC SSR (Scalable Sample Rate); 3: AAC LTP (Long Term Prediction)
// sampling_frequency_index 4 15 not allowed
// private_bit 1 usually 0
// channel_configuration 3
// original/copy 1 0: original; 1: copy
// home 1 usually 0
// emphasis 2 only if ID == 0 (ie MPEG-4) // not present in some documentation?
// * ADTS Variable Header: these can change from frame to frame
// copyright_identification_bit 1
// copyright_identification_start 1
// aac_frame_length 13 length of the frame including header (in bytes)
// adts_buffer_fullness 11 0x7FF indicates VBR
// no_raw_data_blocks_in_frame 2
// * ADTS Error check
// crc_check 16 only if protection_absent == 0
$byteoffset = $info['avdataoffset'];
$framenumber = 0;
// Init bit pattern array
static $decbin = array();
// Populate $bindec
for ($i = 0; $i < 256; $i++) {
$decbin[chr($i)] = str_pad(decbin($i), 8, '0', STR_PAD_LEFT);
}
// used to calculate bitrate below
$BitrateCache = array();
while (true) {
// breaks out when end-of-file encountered, or invalid data found,
// or MaxFramesToScan frames have been scanned
if (!GetId3_Lib_Helper::intValueSupported($byteoffset)) {
$info['warning'][] = 'Unable to parse AAC file beyond ' . ftell($this->getid3->fp) . ' (PHP does not support file operations beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB)';
return false;
}
fseek($this->getid3->fp, $byteoffset, SEEK_SET);
// First get substring
$substring = fread($this->getid3->fp, 9);
// header is 7 bytes (or 9 if CRC is present)
$substringlength = strlen($substring);
if ($substringlength != 9) {
$info['error'][] = 'Failed to read 7 bytes at offset ' . (ftell($this->getid3->fp) - $substringlength) . ' (only read ' . $substringlength . ' bytes)';
return false;
}
// this would be easier with 64-bit math, but split it up to allow for 32-bit:
$header1 = GetId3_Lib_Helper::BigEndian2Int(substr($substring, 0, 2));
$header2 = GetId3_Lib_Helper::BigEndian2Int(substr($substring, 2, 4));
$header3 = GetId3_Lib_Helper::BigEndian2Int(substr($substring, 6, 1));
$info['aac']['header']['raw']['syncword'] = ($header1 & 0xfff0) >> 4;
if ($info['aac']['header']['raw']['syncword'] != 0xfff) {
$info['error'][] = 'Synch pattern (0x0FFF) not found at offset ' . (ftell($this->getid3->fp) - $substringlength) . ' (found 0x0' . strtoupper(dechex($info['aac']['header']['raw']['syncword'])) . ' instead)';
//if ($info['fileformat'] == 'aac') {
// return true;
//}
unset($info['aac']);
return false;
}
// Gather info for first frame only - this takes time to do 1000 times!
if ($framenumber == 0) {
$info['aac']['header_type'] = 'ADTS';
$info['fileformat'] = 'aac';
$info['audio']['dataformat'] = 'aac';
$info['aac']['header']['raw']['mpeg_version'] = ($header1 & 0x8) >> 3;
$info['aac']['header']['raw']['mpeg_layer'] = ($header1 & 0x6) >> 1;
$info['aac']['header']['raw']['protection_absent'] = ($header1 & 0x1) >> 0;
$info['aac']['header']['raw']['profile_code'] = ($header2 & 0xc0000000) >> 30;
$info['aac']['header']['raw']['sample_rate_code'] = ($header2 & 0x3c000000) >> 26;
$info['aac']['header']['raw']['private_stream'] = ($header2 & 0x2000000) >> 25;
$info['aac']['header']['raw']['channels_code'] = ($header2 & 0x1c00000) >> 22;
$info['aac']['header']['raw']['original'] = ($header2 & 0x200000) >> 21;
$info['aac']['header']['raw']['home'] = ($header2 & 0x100000) >> 20;
$info['aac']['header']['raw']['copyright_stream'] = ($header2 & 0x80000) >> 19;
$info['aac']['header']['raw']['copyright_start'] = ($header2 & 0x40000) >> 18;
$info['aac']['header']['raw']['frame_length'] = ($header2 & 0x3ffe0) >> 5;
$info['aac']['header']['mpeg_version'] = $info['aac']['header']['raw']['mpeg_version'] ? 2 : 4;
$info['aac']['header']['crc_present'] = $info['aac']['header']['raw']['protection_absent'] ? false : true;
$info['aac']['header']['profile'] = self::AACprofileLookup($info['aac']['header']['raw']['profile_code'], $info['aac']['header']['mpeg_version']);
$info['aac']['header']['sample_frequency'] = self::AACsampleRateLookup($info['aac']['header']['raw']['sample_rate_code']);
$info['aac']['header']['private'] = (bool) $info['aac']['header']['raw']['private_stream'];
$info['aac']['header']['original'] = (bool) $info['aac']['header']['raw']['original'];
$info['aac']['header']['home'] = (bool) $info['aac']['header']['raw']['home'];
$info['aac']['header']['channels'] = $info['aac']['header']['raw']['channels_code'] == 7 ? 8 : $info['aac']['header']['raw']['channels_code'];
if ($ReturnExtendedInfo) {
$info['aac'][$framenumber]['copyright_id_bit'] = (bool) $info['aac']['header']['raw']['copyright_stream'];
$info['aac'][$framenumber]['copyright_id_start'] = (bool) $info['aac']['header']['raw']['copyright_start'];
}
if ($info['aac']['header']['raw']['mpeg_layer'] != 0) {
$info['warning'][] = 'Layer error - expected "0", found "' . $info['aac']['header']['raw']['mpeg_layer'] . '" instead';
}
if ($info['aac']['header']['sample_frequency'] == 0) {
$info['error'][] = 'Corrupt AAC file: sample_frequency == zero';
return false;
}
$info['audio']['sample_rate'] = $info['aac']['header']['sample_frequency'];
$info['audio']['channels'] = $info['aac']['header']['channels'];
}
$FrameLength = ($header2 & 0x3ffe0) >> 5;
if (!isset($BitrateCache[$FrameLength])) {
$BitrateCache[$FrameLength] = $info['aac']['header']['sample_frequency'] / 1024 * $FrameLength * 8;
}
GetId3_Lib_Helper::safe_inc($info['aac']['bitrate_distribution'][$BitrateCache[$FrameLength]], 1);
$info['aac'][$framenumber]['aac_frame_length'] = $FrameLength;
$info['aac'][$framenumber]['adts_buffer_fullness'] = ($header2 & 0x1f) << 6 & ($header3 & 0xfc) >> 2;
if ($info['aac'][$framenumber]['adts_buffer_fullness'] == 0x7ff) {
$info['audio']['bitrate_mode'] = 'vbr';
} else {
$info['audio']['bitrate_mode'] = 'cbr';
}
$info['aac'][$framenumber]['num_raw_data_blocks'] = ($header3 & 0x3) >> 0;
if ($info['aac']['header']['crc_present']) {
//$info['aac'][$framenumber]['crc'] = GetId3_lib::BigEndian2Int(substr($substring, 7, 2);
}
if (!$ReturnExtendedInfo) {
unset($info['aac'][$framenumber]);
}
/*
$rounded_precision = 5000;
$info['aac']['bitrate_distribution_rounded'] = array();
foreach ($info['aac']['bitrate_distribution'] as $bitrate => $count) {
$rounded_bitrate = round($bitrate / $rounded_precision) * $rounded_precision;
getid3_lib::safe_inc($info['aac']['bitrate_distribution_rounded'][$rounded_bitrate], $count);
}
ksort($info['aac']['bitrate_distribution_rounded']);
*/
$byteoffset += $FrameLength;
if (++$framenumber < $MaxFramesToScan && $byteoffset + 10 < $info['avdataend']) {
// keep scanning
} else {
$info['aac']['frames'] = $framenumber;
$info['playtime_seconds'] = $info['avdataend'] / $byteoffset * ($framenumber * 1024 / $info['aac']['header']['sample_frequency']);
// (1 / % of file scanned) * (samples / (samples/sec)) = seconds
if ($info['playtime_seconds'] == 0) {
$info['error'][] = 'Corrupt AAC file: playtime_seconds == zero';
return false;
}
$info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
ksort($info['aac']['bitrate_distribution']);
$info['audio']['encoder_options'] = $info['aac']['header_type'] . ' ' . $info['aac']['header']['profile'];
return true;
}
}
// should never get here.
}
/**
*
* @return boolean
*/
public function Analyze()
{
$info =& $this->getid3->info;
// shortcut
$info['bonk'] = array();
$thisfile_bonk =& $info['bonk'];
$thisfile_bonk['dataoffset'] = $info['avdataoffset'];
$thisfile_bonk['dataend'] = $info['avdataend'];
if (!GetId3_Lib_Helper::intValueSupported($thisfile_bonk['dataend'])) {
$info['warning'][] = 'Unable to parse BONK file from end (v0.6+ preferred method) because PHP filesystem functions only support up to ' . round(PHP_INT_MAX / 1073741824) . 'GB';
} else {
// scan-from-end method, for v0.6 and higher
fseek($this->getid3->fp, $thisfile_bonk['dataend'] - 8, SEEK_SET);
$PossibleBonkTag = fread($this->getid3->fp, 8);
while ($this->BonkIsValidTagName(substr($PossibleBonkTag, 4, 4), true)) {
$BonkTagSize = GetId3_Lib_Helper::LittleEndian2Int(substr($PossibleBonkTag, 0, 4));
fseek($this->getid3->fp, 0 - $BonkTagSize, SEEK_CUR);
$BonkTagOffset = ftell($this->getid3->fp);
$TagHeaderTest = fread($this->getid3->fp, 5);
if ($TagHeaderTest[0] != "" || substr($PossibleBonkTag, 4, 4) != strtolower(substr($PossibleBonkTag, 4, 4))) {
$info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes("" . strtoupper(substr($PossibleBonkTag, 4, 4))) . '" at offset ' . $BonkTagOffset . ', found "' . GetId3_Lib_Helper::PrintHexBytes($TagHeaderTest) . '"';
return false;
}
$BonkTagName = substr($TagHeaderTest, 1, 4);
$thisfile_bonk[$BonkTagName]['size'] = $BonkTagSize;
$thisfile_bonk[$BonkTagName]['offset'] = $BonkTagOffset;
$this->HandleBonkTags($BonkTagName);
$NextTagEndOffset = $BonkTagOffset - 8;
if ($NextTagEndOffset < $thisfile_bonk['dataoffset']) {
if (empty($info['audio']['encoder'])) {
$info['audio']['encoder'] = 'Extended BONK v0.9+';
}
return true;
}
fseek($this->getid3->fp, $NextTagEndOffset, SEEK_SET);
$PossibleBonkTag = fread($this->getid3->fp, 8);
}
}
// seek-from-beginning method for v0.4 and v0.5
if (empty($thisfile_bonk['BONK'])) {
fseek($this->getid3->fp, $thisfile_bonk['dataoffset'], SEEK_SET);
do {
$TagHeaderTest = fread($this->getid3->fp, 5);
switch ($TagHeaderTest) {
case "" . 'BONK':
if (empty($info['audio']['encoder'])) {
$info['audio']['encoder'] = 'BONK v0.4';
}
break;
case "" . 'INFO':
$info['audio']['encoder'] = 'Extended BONK v0.5';
break;
default:
break 2;
}
$BonkTagName = substr($TagHeaderTest, 1, 4);
$thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset'];
$thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset'];
$this->HandleBonkTags($BonkTagName);
} while (true);
}
// parse META block for v0.6 - v0.8
if (empty($thisfile_bonk['INFO']) && isset($thisfile_bonk['META']['tags']['info'])) {
fseek($this->getid3->fp, $thisfile_bonk['META']['tags']['info'], SEEK_SET);
$TagHeaderTest = fread($this->getid3->fp, 5);
if ($TagHeaderTest == "" . 'INFO') {
$info['audio']['encoder'] = 'Extended BONK v0.6 - v0.8';
$BonkTagName = substr($TagHeaderTest, 1, 4);
$thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset'];
$thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset'];
$this->HandleBonkTags($BonkTagName);
}
}
if (empty($info['audio']['encoder'])) {
$info['audio']['encoder'] = 'Extended BONK v0.9+';
}
if (empty($thisfile_bonk['BONK'])) {
unset($info['bonk']);
}
return true;
}
/**
*
* @param type $filename
* @return boolean
* @throws GetId3_Exception_DefaultException
*/
public function openfile($filename)
{
try {
if (!empty($this->startup_error)) {
throw new GetId3_Exception_DefaultException($this->startup_error);
}
if (!empty($this->startup_warning)) {
$this->warning($this->startup_warning);
}
// init result array and set parameters
$this->filename = $filename;
$this->info = array();
$this->info['GETID3_VERSION'] = $this->version();
$this->info['php_memory_limit'] = $this->memory_limit;
// remote files not supported
if (preg_match('/^(ht|f)tp:\\/\\//', $filename)) {
throw new GetId3_Exception_DefaultException('Remote files are not supported - please copy the file locally first');
}
$filename = str_replace('/', DIRECTORY_SEPARATOR, $filename);
$filename = preg_replace('#(.+)' . preg_quote(DIRECTORY_SEPARATOR) . '{2,}#U', '\\1' . DIRECTORY_SEPARATOR, $filename);
// open local file
if (is_readable($filename) && is_file($filename) && ($this->fp = fopen($filename, 'rb'))) {
// great
} else {
throw new GetId3_Exception_DefaultException('Could not open "' . $filename . '" (does not exist, or is not a file)');
}
$this->info['filesize'] = filesize($filename);
// set redundant parameters - might be needed in some include file
$this->info['filename'] = basename($filename);
$this->info['filepath'] = str_replace('\\', '/', realpath(dirname($filename)));
$this->info['filenamepath'] = $this->info['filepath'] . '/' . $this->info['filename'];
// option_max_2gb_check
if ($this->option_max_2gb_check) {
// PHP (32-bit all, and 64-bit Windows) doesn't support integers larger than 2^31 (~2GB)
// filesize() simply returns (filesize % (pow(2, 32)), no matter the actual filesize
// ftell() returns 0 if seeking to the end is beyond the range of unsigned integer
$fseek = fseek($this->fp, 0, SEEK_END);
if ($fseek < 0 || $this->info['filesize'] != 0 && ftell($this->fp) == 0 || $this->info['filesize'] < 0 || ftell($this->fp) < 0) {
$real_filesize = false;
if (self::$EnvironmentIsWindows) {
$commandline = 'dir /-C "' . str_replace('/', DIRECTORY_SEPARATOR, $filename) . '"';
$dir_output = `{$commandline}`;
if (preg_match('#1 File\\(s\\)[ ]+([0-9]+) bytes#i', $dir_output, $matches)) {
$real_filesize = (double) $matches[1];
}
} else {
$commandline = 'ls -o -g -G --time-style=long-iso ' . escapeshellarg($filename);
$dir_output = `{$commandline}`;
if (preg_match('#([0-9]+) ([0-9]{4}-[0-9]{2}\\-[0-9]{2} [0-9]{2}:[0-9]{2}) ' . str_replace('#', '\\#', preg_quote($filename)) . '$#', $dir_output, $matches)) {
$real_filesize = (double) $matches[1];
}
}
if ($real_filesize === false) {
unset($this->info['filesize']);
fclose($this->fp);
throw new GetId3_Exception_DefaultException('Unable to determine actual filesize. File is most likely larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB and is not supported by PHP.');
} elseif (GetId3_Lib_Helper::intValueSupported($real_filesize)) {
unset($this->info['filesize']);
fclose($this->fp);
throw new GetId3_Exception_DefaultException('PHP seems to think the file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB, but filesystem reports it as ' . number_format($real_filesize, 3) . 'GB, please report to info@getid3.org');
}
$this->info['filesize'] = $real_filesize;
$this->error('File is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB (filesystem reports it as ' . number_format($real_filesize, 3) . 'GB) and is not properly supported by PHP.');
}
}
// set more parameters
$this->info['avdataoffset'] = 0;
$this->info['avdataend'] = $this->info['filesize'];
$this->info['fileformat'] = '';
// filled in later
$this->info['audio']['dataformat'] = '';
// filled in later, unset if not used
$this->info['video']['dataformat'] = '';
// filled in later, unset if not used
$this->info['tags'] = array();
// filled in later, unset if not used
$this->info['error'] = array();
// filled in later, unset if not used
$this->info['warning'] = array();
// filled in later, unset if not used
$this->info['comments'] = array();
// filled in later, unset if not used
$this->info['encoding'] = $this->encoding;
// required by id3v2 and iso modules - can be unset at the end if desired
return true;
} catch (Exception $e) {
$this->error($e->getMessage());
}
return false;
}
/**
*
* @return boolean
*/
public function Analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'zip';
$info['zip']['encoding'] = 'ISO-8859-1';
$info['zip']['files'] = array();
$info['zip']['compressed_size'] = 0;
$info['zip']['uncompressed_size'] = 0;
$info['zip']['entries_count'] = 0;
if (!GetId3_Lib_Helper::intValueSupported($info['filesize'])) {
$info['error'][] = 'File is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB, not supported by PHP';
return false;
} else {
$EOCDsearchData = '';
$EOCDsearchCounter = 0;
while ($EOCDsearchCounter++ < 512) {
fseek($this->getid3->fp, -128 * $EOCDsearchCounter, SEEK_END);
$EOCDsearchData = fread($this->getid3->fp, 128) . $EOCDsearchData;
if (strstr($EOCDsearchData, 'PK' . "")) {
$EOCDposition = strpos($EOCDsearchData, 'PK' . "");
fseek($this->getid3->fp, -128 * $EOCDsearchCounter + $EOCDposition, SEEK_END);
$info['zip']['end_central_directory'] = $this->ZIPparseEndOfCentralDirectory();
fseek($this->getid3->fp, $info['zip']['end_central_directory']['directory_offset'], SEEK_SET);
$info['zip']['entries_count'] = 0;
while ($centraldirectoryentry = $this->ZIPparseCentralDirectory($this->getid3->fp)) {
$info['zip']['central_directory'][] = $centraldirectoryentry;
$info['zip']['entries_count']++;
$info['zip']['compressed_size'] += $centraldirectoryentry['compressed_size'];
$info['zip']['uncompressed_size'] += $centraldirectoryentry['uncompressed_size'];
if ($centraldirectoryentry['uncompressed_size'] > 0) {
$info['zip']['files'] = GetId3_Lib_Helper::array_merge_clobber($info['zip']['files'], GetId3_Lib_Helper::CreateDeepArray($centraldirectoryentry['filename'], '/', $centraldirectoryentry['uncompressed_size']));
}
}
if ($info['zip']['entries_count'] == 0) {
$info['error'][] = 'No Central Directory entries found (truncated file?)';
return false;
}
if (!empty($info['zip']['end_central_directory']['comment'])) {
$info['zip']['comments']['comment'][] = $info['zip']['end_central_directory']['comment'];
}
if (isset($info['zip']['central_directory'][0]['compression_method'])) {
$info['zip']['compression_method'] = $info['zip']['central_directory'][0]['compression_method'];
}
if (isset($info['zip']['central_directory'][0]['flags']['compression_speed'])) {
$info['zip']['compression_speed'] = $info['zip']['central_directory'][0]['flags']['compression_speed'];
}
if (isset($info['zip']['compression_method']) && $info['zip']['compression_method'] == 'store' && !isset($info['zip']['compression_speed'])) {
$info['zip']['compression_speed'] = 'store';
}
return true;
}
}
}
if ($this->getZIPentriesFilepointer()) {
// central directory couldn't be found and/or parsed
// scan through actual file data entries, recover as much as possible from probable trucated file
if ($info['zip']['compressed_size'] > $info['filesize'] - 46 - 22) {
$info['error'][] = 'Warning: Truncated file! - Total compressed file sizes (' . $info['zip']['compressed_size'] . ' bytes) is greater than filesize minus Central Directory and End Of Central Directory structures (' . ($info['filesize'] - 46 - 22) . ' bytes)';
}
$info['error'][] = 'Cannot find End Of Central Directory - returned list of files in [zip][entries] array may not be complete';
foreach ($info['zip']['entries'] as $key => $valuearray) {
$info['zip']['files'][$valuearray['filename']] = $valuearray['uncompressed_size'];
}
return true;
} else {
unset($info['zip']);
$info['fileformat'] = '';
$info['error'][] = 'Cannot find End Of Central Directory (truncated file?)';
return false;
}
}
/**
*
* @param type $min_data
* @return boolean
*/
private function EnsureBufferHasEnoughData($min_data = 1024)
{
if ($this->current_offset - $this->EBMLbuffer_offset >= $this->EBMLbuffer_length - $min_data) {
if (!GetId3_Lib_Helper::intValueSupported($this->current_offset + $this->getid3->fread_buffer_size())) {
$this->getid3->info['error'][] = 'EBML parser: cannot read past ' . $this->current_offset;
return false;
}
$this->fseek($this->current_offset);
$this->EBMLbuffer_offset = $this->current_offset;
$this->EBMLbuffer = $this->fread(max($min_data, $this->getid3->fread_buffer_size()));
$this->EBMLbuffer_length = strlen($this->EBMLbuffer);
if ($this->EBMLbuffer_length == 0 && $this->feof()) {
$this->getid3->info['error'][] = 'EBML parser: ran out of file at offset ' . $this->current_offset;
return false;
}
}
return true;
}
/**
*
* @return boolean
*/
public function Analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'ogg';
// Warn about illegal tags - only vorbiscomments are allowed
if (isset($info['id3v2'])) {
$info['warning'][] = 'Illegal ID3v2 tag present.';
}
if (isset($info['id3v1'])) {
$info['warning'][] = 'Illegal ID3v1 tag present.';
}
if (isset($info['ape'])) {
$info['warning'][] = 'Illegal APE tag present.';
}
// Page 1 - Stream Header
$this->fseek($info['avdataoffset']);
$oggpageinfo = $this->ParseOggPageHeader();
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo;
if ($this->ftell() >= $this->getid3->fread_buffer_size()) {
$info['error'][] = 'Could not find start of Ogg page in the first ' . $this->getid3->fread_buffer_size() . ' bytes (this might not be an Ogg-Vorbis file?)';
unset($info['fileformat']);
unset($info['ogg']);
return false;
}
$filedata = $this->fread($oggpageinfo['page_length']);
$filedataoffset = 0;
if (substr($filedata, 0, 4) == 'fLaC') {
$info['audio']['dataformat'] = 'flac';
$info['audio']['bitrate_mode'] = 'vbr';
$info['audio']['lossless'] = true;
} elseif (substr($filedata, 1, 6) == 'vorbis') {
$this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo);
} elseif (substr($filedata, 0, 8) == 'Speex ') {
// http://www.speex.org/manual/node10.html
$info['audio']['dataformat'] = 'speex';
$info['mime_type'] = 'audio/speex';
$info['audio']['bitrate_mode'] = 'abr';
$info['audio']['lossless'] = false;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_string'] = substr($filedata, $filedataoffset, 8);
// hard-coded to 'Speex '
$filedataoffset += 8;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version'] = substr($filedata, $filedataoffset, 20);
$filedataoffset += 20;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version_id'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['header_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode_bitstream_version'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['bitrate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['framesize'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['frames_per_packet'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['extra_headers'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved1'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved2'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['speex']['speex_version'] = trim($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version']);
$info['speex']['sample_rate'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate'];
$info['speex']['channels'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels'];
$info['speex']['vbr'] = (bool) $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr'];
$info['speex']['band_type'] = $this->SpeexBandModeLookup($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode']);
$info['audio']['sample_rate'] = $info['speex']['sample_rate'];
$info['audio']['channels'] = $info['speex']['channels'];
if ($info['speex']['vbr']) {
$info['audio']['bitrate_mode'] = 'vbr';
}
} elseif (substr($filedata, 0, 8) == "fishead") {
// Ogg Skeleton version 3.0 Format Specification
// http://xiph.org/ogg/doc/skeleton.html
$filedataoffset += 8;
$info['ogg']['skeleton']['fishead']['raw']['version_major'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 2));
$filedataoffset += 2;
$info['ogg']['skeleton']['fishead']['raw']['version_minor'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 2));
$filedataoffset += 2;
$info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 8));
$filedataoffset += 8;
$info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 8));
$filedataoffset += 8;
$info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 8));
$filedataoffset += 8;
$info['ogg']['skeleton']['fishead']['raw']['basetime_denominator'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 8));
$filedataoffset += 8;
$info['ogg']['skeleton']['fishead']['raw']['utc'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 20));
$filedataoffset += 20;
$info['ogg']['skeleton']['fishead']['version'] = $info['ogg']['skeleton']['fishead']['raw']['version_major'] . '.' . $info['ogg']['skeleton']['fishead']['raw']['version_minor'];
$info['ogg']['skeleton']['fishead']['presentationtime'] = $info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] / $info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator'];
$info['ogg']['skeleton']['fishead']['basetime'] = $info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'] / $info['ogg']['skeleton']['fishead']['raw']['basetime_denominator'];
$info['ogg']['skeleton']['fishead']['utc'] = $info['ogg']['skeleton']['fishead']['raw']['utc'];
$counter = 0;
do {
$oggpageinfo = $this->ParseOggPageHeader();
$info['ogg']['pageheader'][$oggpageinfo['page_seqno'] . '.' . $counter++] = $oggpageinfo;
$filedata = $this->fread($oggpageinfo['page_length']);
$this->fseek($oggpageinfo['page_end_offset']);
if (substr($filedata, 0, 8) == "fisbone") {
$filedataoffset = 8;
$info['ogg']['skeleton']['fisbone']['raw']['message_header_offset'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['skeleton']['fisbone']['raw']['serial_number'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['skeleton']['fisbone']['raw']['number_header_packets'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['skeleton']['fisbone']['raw']['granulerate_numerator'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 8));
$filedataoffset += 8;
$info['ogg']['skeleton']['fisbone']['raw']['granulerate_denominator'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 8));
$filedataoffset += 8;
$info['ogg']['skeleton']['fisbone']['raw']['basegranule'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 8));
$filedataoffset += 8;
$info['ogg']['skeleton']['fisbone']['raw']['preroll'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$info['ogg']['skeleton']['fisbone']['raw']['granuleshift'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, $filedataoffset, 1));
$filedataoffset += 1;
$info['ogg']['skeleton']['fisbone']['raw']['padding'] = substr($filedata, $filedataoffset, 3);
$filedataoffset += 3;
} elseif (substr($filedata, 1, 6) == 'theora') {
$info['video']['dataformat'] = 'theora';
$info['error'][] = 'Ogg Theora not correctly handled in this version of GetId3 [' . $this->getid3->version() . ']';
//break;
} elseif (substr($filedata, 1, 6) == 'vorbis') {
$this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo);
} else {
$info['error'][] = 'unexpected';
//break;
}
//} while ($oggpageinfo['page_seqno'] == 0);
} while ($oggpageinfo['page_seqno'] == 0 && substr($filedata, 0, 8) != "fisbone");
$this->fseek($oggpageinfo['page_start_offset']);
$info['error'][] = 'Ogg Skeleton not correctly handled in this version of GetId3 [' . $this->getid3->version() . ']';
//return false;
} else {
$info['error'][] = 'Expecting either "Speex " or "vorbis" identifier strings, found "' . substr($filedata, 0, 8) . '"';
unset($info['ogg']);
unset($info['mime_type']);
return false;
}
// Page 2 - Comment Header
$oggpageinfo = $this->ParseOggPageHeader();
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo;
switch ($info['audio']['dataformat']) {
case 'vorbis':
$filedata = $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']);
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['packet_type'] = GetId3_Lib_Helper::LittleEndian2Int(substr($filedata, 0, 1));
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, 1, 6);
// hard-coded to 'vorbis'
$this->ParseVorbisComments();
break;
case 'flac':
$getid3_flac = new GetId3_Module_Audio_Flac($this->getid3);
if (!$getid3_flac->parseMETAdata()) {
$info['error'][] = 'Failed to parse FLAC headers';
return false;
}
unset($getid3_flac);
break;
case 'speex':
$this->fseek($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length'], SEEK_CUR);
$this->ParseVorbisComments();
break;
}
// Last Page - Number of Samples
if (!GetId3_Lib_Helper::intValueSupported($info['avdataend'])) {
$info['warning'][] = 'Unable to parse Ogg end chunk file (PHP does not support file operations beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB)';
} else {
$this->fseek(max($info['avdataend'] - $this->getid3->fread_buffer_size(), 0));
$LastChunkOfOgg = strrev($this->fread($this->getid3->fread_buffer_size()));
if ($LastOggSpostion = strpos($LastChunkOfOgg, 'SggO')) {
$this->fseek($info['avdataend'] - ($LastOggSpostion + strlen('SggO')));
$info['avdataend'] = $this->ftell();
$info['ogg']['pageheader']['eos'] = $this->ParseOggPageHeader();
$info['ogg']['samples'] = $info['ogg']['pageheader']['eos']['pcm_abs_position'];
if ($info['ogg']['samples'] == 0) {
$info['error'][] = 'Corrupt Ogg file: eos.number of samples == zero';
return false;
}
if (!empty($info['audio']['sample_rate'])) {
$info['ogg']['bitrate_average'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / ($info['ogg']['samples'] / $info['audio']['sample_rate']);
}
}
}
if (!empty($info['ogg']['bitrate_average'])) {
$info['audio']['bitrate'] = $info['ogg']['bitrate_average'];
} elseif (!empty($info['ogg']['bitrate_nominal'])) {
$info['audio']['bitrate'] = $info['ogg']['bitrate_nominal'];
} elseif (!empty($info['ogg']['bitrate_min']) && !empty($info['ogg']['bitrate_max'])) {
$info['audio']['bitrate'] = ($info['ogg']['bitrate_min'] + $info['ogg']['bitrate_max']) / 2;
}
if (isset($info['audio']['bitrate']) && !isset($info['playtime_seconds'])) {
if ($info['audio']['bitrate'] == 0) {
$info['error'][] = 'Corrupt Ogg file: bitrate_audio == zero';
return false;
}
$info['playtime_seconds'] = (double) (($info['avdataend'] - $info['avdataoffset']) * 8 / $info['audio']['bitrate']);
}
if (isset($info['ogg']['vendor'])) {
$info['audio']['encoder'] = preg_replace('/^Encoded with /', '', $info['ogg']['vendor']);
// Vorbis only
if ($info['audio']['dataformat'] == 'vorbis') {
// Vorbis 1.0 starts with Xiph.Org
if (preg_match('/^Xiph.Org/', $info['audio']['encoder'])) {
if ($info['audio']['bitrate_mode'] == 'abr') {
// Set -b 128 on abr files
$info['audio']['encoder_options'] = '-b ' . round($info['ogg']['bitrate_nominal'] / 1000);
} elseif ($info['audio']['bitrate_mode'] == 'vbr' && $info['audio']['channels'] == 2 && $info['audio']['sample_rate'] >= 44100 && $info['audio']['sample_rate'] <= 48000) {
// Set -q N on vbr files
$info['audio']['encoder_options'] = '-q ' . $this->get_quality_from_nominal_bitrate($info['ogg']['bitrate_nominal']);
}
}
if (empty($info['audio']['encoder_options']) && !empty($info['ogg']['bitrate_nominal'])) {
$info['audio']['encoder_options'] = 'Nominal bitrate: ' . intval(round($info['ogg']['bitrate_nominal'] / 1000)) . 'kbps';
}
}
}
return true;
}
/**
*
* @return boolean
*/
public function Analyze()
{
$info =& $this->getid3->info;
if (!GetId3_Lib_Helper::intValueSupported($info['filesize'])) {
$info['warning'][] = 'Unable to check for APEtags because file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
return false;
}
$id3v1tagsize = 128;
$apetagheadersize = 32;
$lyrics3tagsize = 10;
if ($this->overrideendoffset == 0) {
fseek($this->getid3->fp, 0 - $id3v1tagsize - $apetagheadersize - $lyrics3tagsize, SEEK_END);
$APEfooterID3v1 = fread($this->getid3->fp, $id3v1tagsize + $apetagheadersize + $lyrics3tagsize);
//if (preg_match('/APETAGEX.{24}TAG.{125}$/i', $APEfooterID3v1)) {
if (substr($APEfooterID3v1, strlen($APEfooterID3v1) - $id3v1tagsize - $apetagheadersize, 8) == 'APETAGEX') {
// APE tag found before ID3v1
$info['ape']['tag_offset_end'] = $info['filesize'] - $id3v1tagsize;
//} elseif (preg_match('/APETAGEX.{24}$/i', $APEfooterID3v1)) {
} elseif (substr($APEfooterID3v1, strlen($APEfooterID3v1) - $apetagheadersize, 8) == 'APETAGEX') {
// APE tag found, no ID3v1
$info['ape']['tag_offset_end'] = $info['filesize'];
}
} else {
fseek($this->getid3->fp, $this->overrideendoffset - $apetagheadersize, SEEK_SET);
if (fread($this->getid3->fp, 8) == 'APETAGEX') {
$info['ape']['tag_offset_end'] = $this->overrideendoffset;
}
}
if (!isset($info['ape']['tag_offset_end'])) {
// APE tag not found
unset($info['ape']);
return false;
}
// shortcut
$thisfile_ape =& $info['ape'];
fseek($this->getid3->fp, $thisfile_ape['tag_offset_end'] - $apetagheadersize, SEEK_SET);
$APEfooterData = fread($this->getid3->fp, 32);
if (!($thisfile_ape['footer'] = $this->parseAPEheaderFooter($APEfooterData))) {
$info['error'][] = 'Error parsing APE footer at offset ' . $thisfile_ape['tag_offset_end'];
return false;
}
if (isset($thisfile_ape['footer']['flags']['header']) && $thisfile_ape['footer']['flags']['header']) {
fseek($this->getid3->fp, $thisfile_ape['tag_offset_end'] - $thisfile_ape['footer']['raw']['tagsize'] - $apetagheadersize, SEEK_SET);
$thisfile_ape['tag_offset_start'] = ftell($this->getid3->fp);
$APEtagData = fread($this->getid3->fp, $thisfile_ape['footer']['raw']['tagsize'] + $apetagheadersize);
} else {
$thisfile_ape['tag_offset_start'] = $thisfile_ape['tag_offset_end'] - $thisfile_ape['footer']['raw']['tagsize'];
fseek($this->getid3->fp, $thisfile_ape['tag_offset_start'], SEEK_SET);
$APEtagData = fread($this->getid3->fp, $thisfile_ape['footer']['raw']['tagsize']);
}
$info['avdataend'] = $thisfile_ape['tag_offset_start'];
if (isset($info['id3v1']['tag_offset_start']) && $info['id3v1']['tag_offset_start'] < $thisfile_ape['tag_offset_end']) {
$info['warning'][] = 'ID3v1 tag information ignored since it appears to be a false synch in APEtag data';
unset($info['id3v1']);
foreach ($info['warning'] as $key => $value) {
if ($value == 'Some ID3v1 fields do not use NULL characters for padding') {
unset($info['warning'][$key]);
sort($info['warning']);
break;
}
}
}
$offset = 0;
if (isset($thisfile_ape['footer']['flags']['header']) && $thisfile_ape['footer']['flags']['header']) {
if ($thisfile_ape['header'] = $this->parseAPEheaderFooter(substr($APEtagData, 0, $apetagheadersize))) {
$offset += $apetagheadersize;
} else {
$info['error'][] = 'Error parsing APE header at offset ' . $thisfile_ape['tag_offset_start'];
return false;
}
}
// shortcut
$info['replay_gain'] = array();
$thisfile_replaygain =& $info['replay_gain'];
for ($i = 0; $i < $thisfile_ape['footer']['raw']['tag_items']; $i++) {
$value_size = GetId3_Lib_Helper::LittleEndian2Int(substr($APEtagData, $offset, 4));
$offset += 4;
$item_flags = GetId3_Lib_Helper::LittleEndian2Int(substr($APEtagData, $offset, 4));
$offset += 4;
if (strstr(substr($APEtagData, $offset), "") === false) {
$info['error'][] = 'Cannot find null-byte (0x00) seperator between ItemKey #' . $i . ' and value. ItemKey starts ' . $offset . ' bytes into the APE tag, at file offset ' . ($thisfile_ape['tag_offset_start'] + $offset);
return false;
}
$ItemKeyLength = strpos($APEtagData, "", $offset) - $offset;
$item_key = strtolower(substr($APEtagData, $offset, $ItemKeyLength));
// shortcut
$thisfile_ape['items'][$item_key] = array();
$thisfile_ape_items_current =& $thisfile_ape['items'][$item_key];
$thisfile_ape_items_current['offset'] = $thisfile_ape['tag_offset_start'] + $offset;
$offset += $ItemKeyLength + 1;
// skip 0x00 terminator
$thisfile_ape_items_current['data'] = substr($APEtagData, $offset, $value_size);
$offset += $value_size;
$thisfile_ape_items_current['flags'] = $this->parseAPEtagFlags($item_flags);
switch ($thisfile_ape_items_current['flags']['item_contents_raw']) {
case 0:
// UTF-8
// UTF-8
case 3:
// Locator (URL, filename, etc), UTF-8 encoded
$thisfile_ape_items_current['data'] = explode("", trim($thisfile_ape_items_current['data']));
break;
default:
// binary data
break;
}
switch (strtolower($item_key)) {
case 'replaygain_track_gain':
$thisfile_replaygain['track']['adjustment'] = (double) str_replace(',', '.', $thisfile_ape_items_current['data'][0]);
// float casting will see "0,95" as zero!
$thisfile_replaygain['track']['originator'] = 'unspecified';
break;
case 'replaygain_track_peak':
$thisfile_replaygain['track']['peak'] = (double) str_replace(',', '.', $thisfile_ape_items_current['data'][0]);
// float casting will see "0,95" as zero!
$thisfile_replaygain['track']['originator'] = 'unspecified';
if ($thisfile_replaygain['track']['peak'] <= 0) {
$info['warning'][] = 'ReplayGain Track peak from APEtag appears invalid: ' . $thisfile_replaygain['track']['peak'] . ' (original value = "' . $thisfile_ape_items_current['data'][0] . '")';
}
break;
case 'replaygain_album_gain':
$thisfile_replaygain['album']['adjustment'] = (double) str_replace(',', '.', $thisfile_ape_items_current['data'][0]);
// float casting will see "0,95" as zero!
$thisfile_replaygain['album']['originator'] = 'unspecified';
break;
case 'replaygain_album_peak':
$thisfile_replaygain['album']['peak'] = (double) str_replace(',', '.', $thisfile_ape_items_current['data'][0]);
// float casting will see "0,95" as zero!
$thisfile_replaygain['album']['originator'] = 'unspecified';
if ($thisfile_replaygain['album']['peak'] <= 0) {
$info['warning'][] = 'ReplayGain Album peak from APEtag appears invalid: ' . $thisfile_replaygain['album']['peak'] . ' (original value = "' . $thisfile_ape_items_current['data'][0] . '")';
}
break;
case 'mp3gain_undo':
list($mp3gain_undo_left, $mp3gain_undo_right, $mp3gain_undo_wrap) = explode(',', $thisfile_ape_items_current['data'][0]);
$thisfile_replaygain['mp3gain']['undo_left'] = intval($mp3gain_undo_left);
$thisfile_replaygain['mp3gain']['undo_right'] = intval($mp3gain_undo_right);
$thisfile_replaygain['mp3gain']['undo_wrap'] = $mp3gain_undo_wrap == 'Y' ? true : false;
break;
case 'mp3gain_minmax':
list($mp3gain_globalgain_min, $mp3gain_globalgain_max) = explode(',', $thisfile_ape_items_current['data'][0]);
$thisfile_replaygain['mp3gain']['globalgain_track_min'] = intval($mp3gain_globalgain_min);
$thisfile_replaygain['mp3gain']['globalgain_track_max'] = intval($mp3gain_globalgain_max);
break;
case 'mp3gain_album_minmax':
list($mp3gain_globalgain_album_min, $mp3gain_globalgain_album_max) = explode(',', $thisfile_ape_items_current['data'][0]);
$thisfile_replaygain['mp3gain']['globalgain_album_min'] = intval($mp3gain_globalgain_album_min);
$thisfile_replaygain['mp3gain']['globalgain_album_max'] = intval($mp3gain_globalgain_album_max);
break;
case 'tracknumber':
if (is_array($thisfile_ape_items_current['data'])) {
foreach ($thisfile_ape_items_current['data'] as $comment) {
$thisfile_ape['comments']['track'][] = $comment;
}
}
break;
case 'cover art (artist)':
case 'cover art (back)':
case 'cover art (band logo)':
case 'cover art (band)':
case 'cover art (colored fish)':
case 'cover art (composer)':
case 'cover art (conductor)':
case 'cover art (front)':
case 'cover art (icon)':
case 'cover art (illustration)':
case 'cover art (lead)':
case 'cover art (leaflet)':
case 'cover art (lyricist)':
case 'cover art (media)':
case 'cover art (movie scene)':
case 'cover art (other icon)':
case 'cover art (other)':
case 'cover art (performance)':
case 'cover art (publisher logo)':
case 'cover art (recording)':
case 'cover art (studio)':
// list of possible cover arts from http://taglib-sharp.sourcearchive.com/documentation/2.0.3.0-2/Ape_2Tag_8cs-source.html
list($thisfile_ape_items_current['filename'], $thisfile_ape_items_current['data']) = explode("", $thisfile_ape_items_current['data'], 2);
$thisfile_ape_items_current['data_offset'] = $thisfile_ape_items_current['offset'] + strlen($thisfile_ape_items_current['filename'] . "");
$thisfile_ape_items_current['data_length'] = strlen($thisfile_ape_items_current['data']);
$thisfile_ape_items_current['image_mime'] = '';
$imageinfo = array();
$imagechunkcheck = GetId3_Lib_Helper::GetDataImageSize($thisfile_ape_items_current['data'], $imageinfo);
$thisfile_ape_items_current['image_mime'] = image_type_to_mime_type($imagechunkcheck[2]);
do {
if ($this->inline_attachments === false) {
// skip entirely
unset($thisfile_ape_items_current['data']);
break;
}
if ($this->inline_attachments === true) {
// great
} elseif (is_int($this->inline_attachments)) {
if ($this->inline_attachments < $thisfile_ape_items_current['data_length']) {
// too big, skip
$info['warning'][] = 'attachment at ' . $thisfile_ape_items_current['offset'] . ' is too large to process inline (' . number_format($thisfile_ape_items_current['data_length']) . ' bytes)';
unset($thisfile_ape_items_current['data']);
break;
}
} elseif (is_string($this->inline_attachments)) {
$this->inline_attachments = rtrim(str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $this->inline_attachments), DIRECTORY_SEPARATOR);
if (!is_dir($this->inline_attachments) || !is_writable($this->inline_attachments)) {
// cannot write, skip
$info['warning'][] = 'attachment at ' . $thisfile_ape_items_current['offset'] . ' cannot be saved to "' . $this->inline_attachments . '" (not writable)';
unset($thisfile_ape_items_current['data']);
break;
}
}
// if we get this far, must be OK
if (is_string($this->inline_attachments)) {
$destination_filename = $this->inline_attachments . DIRECTORY_SEPARATOR . md5($info['filenamepath']) . '_' . $thisfile_ape_items_current['data_offset'];
if (!file_exists($destination_filename) || is_writable($destination_filename)) {
file_put_contents($destination_filename, $thisfile_ape_items_current['data']);
} else {
$info['warning'][] = 'attachment at ' . $thisfile_ape_items_current['offset'] . ' cannot be saved to "' . $destination_filename . '" (not writable)';
}
$thisfile_ape_items_current['data_filename'] = $destination_filename;
unset($thisfile_ape_items_current['data']);
} else {
if (!isset($info['ape']['comments']['picture'])) {
$info['ape']['comments']['picture'] = array();
}
$info['ape']['comments']['picture'][] = array('data' => $thisfile_ape_items_current['data'], 'image_mime' => $thisfile_ape_items_current['image_mime']);
}
} while (false);
break;
default:
if (is_array($thisfile_ape_items_current['data'])) {
foreach ($thisfile_ape_items_current['data'] as $comment) {
$thisfile_ape['comments'][strtolower($item_key)][] = $comment;
}
}
break;
}
}
if (empty($thisfile_replaygain)) {
unset($info['replay_gain']);
}
return true;
}
/**
*
* @param type $ThisFileInfoIndex
* @param type $filename
* @param type $offset
* @param type $length
* @return boolean
* @throws Exception
*/
public function saveAttachment(&$ThisFileInfoIndex, $filename, $offset, $length)
{
try {
if (!GetId3_Lib_Helper::intValueSupported($offset + $length)) {
throw new Exception('it extends beyond the ' . round(PHP_INT_MAX / 1073741824) . 'GB limit');
}
// do not extract at all
if ($this->getid3->option_save_attachments === self::ATTACHMENTS_NONE) {
unset($ThisFileInfoIndex);
// do not set any
} else {
if ($this->getid3->option_save_attachments === self::ATTACHMENTS_INLINE) {
// get whole data in one pass, till it is anyway stored in memory
$this->fseek($offset);
$ThisFileInfoIndex = $this->fread($length);
if ($ThisFileInfoIndex === false || strlen($ThisFileInfoIndex) != $length) {
// verify
throw new Exception('failed to read attachment data');
}
} else {
// set up destination path
$dir = rtrim(str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $this->getid3->option_save_attachments), DIRECTORY_SEPARATOR);
if (!is_dir($dir) || !is_writable($dir)) {
// check supplied directory
throw new Exception('supplied path (' . $dir . ') does not exist, or is not writable');
}
$dest = $dir . DIRECTORY_SEPARATOR . $filename;
// create dest file
if (($fp_dest = fopen($dest, 'wb')) == false) {
throw new Exception('failed to create file ' . $dest);
}
// copy data
$this->fseek($offset);
$buffersize = $this->data_string_flag ? $length : $this->getid3->fread_buffer_size();
$bytesleft = $length;
while ($bytesleft > 0) {
if (($buffer = $this->fread(min($buffersize, $bytesleft))) === false || ($byteswritten = fwrite($fp_dest, $buffer)) === false) {
fclose($fp_dest);
unlink($dest);
throw new Exception($buffer === false ? 'not enough data to read' : 'failed to write to destination file, may be not enough disk space');
}
$bytesleft -= $byteswritten;
}
fclose($fp_dest);
$ThisFileInfoIndex = $dest;
}
}
} catch (Exception $e) {
unset($ThisFileInfoIndex);
// do not set any is case of error
$this->warning('Failed to extract attachment ' . $filename . ': ' . $e->getMessage());
return false;
}
return true;
}
/**
*
* @return boolean
*/
public function Analyze()
{
$info =& $this->getid3->info;
if (!GetId3_Lib_Helper::intValueSupported($info['filesize'])) {
$info['warning'][] = 'Unable to check for ID3v1 because file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
return false;
}
fseek($this->getid3->fp, -256, SEEK_END);
$preid3v1 = fread($this->getid3->fp, 128);
$id3v1tag = fread($this->getid3->fp, 128);
if (substr($id3v1tag, 0, 3) == 'TAG') {
$info['avdataend'] = $info['filesize'] - 128;
$ParsedID3v1['title'] = $this->cutfield(substr($id3v1tag, 3, 30));
$ParsedID3v1['artist'] = $this->cutfield(substr($id3v1tag, 33, 30));
$ParsedID3v1['album'] = $this->cutfield(substr($id3v1tag, 63, 30));
$ParsedID3v1['year'] = $this->cutfield(substr($id3v1tag, 93, 4));
$ParsedID3v1['comment'] = substr($id3v1tag, 97, 30);
// can't remove nulls yet, track detection depends on them
$ParsedID3v1['genreid'] = ord(substr($id3v1tag, 127, 1));
// If second-last byte of comment field is null and last byte of comment field is non-null
// then this is ID3v1.1 and the comment field is 28 bytes long and the 30th byte is the track number
if ($id3v1tag[125] === "" && $id3v1tag[126] !== "") {
$ParsedID3v1['track'] = ord(substr($ParsedID3v1['comment'], 29, 1));
$ParsedID3v1['comment'] = substr($ParsedID3v1['comment'], 0, 28);
}
$ParsedID3v1['comment'] = $this->cutfield($ParsedID3v1['comment']);
$ParsedID3v1['genre'] = $this->LookupGenreName($ParsedID3v1['genreid']);
if (!empty($ParsedID3v1['genre'])) {
unset($ParsedID3v1['genreid']);
}
if (isset($ParsedID3v1['genre']) && (empty($ParsedID3v1['genre']) || $ParsedID3v1['genre'] == 'Unknown')) {
unset($ParsedID3v1['genre']);
}
foreach ($ParsedID3v1 as $key => $value) {
$ParsedID3v1['comments'][$key][0] = $value;
}
// ID3v1 data is supposed to be padded with NULL characters, but some taggers pad with spaces
$GoodFormatID3v1tag = $this->GenerateID3v1Tag($ParsedID3v1['title'], $ParsedID3v1['artist'], $ParsedID3v1['album'], $ParsedID3v1['year'], isset($ParsedID3v1['genre']) ? $this->LookupGenreID($ParsedID3v1['genre']) : false, $ParsedID3v1['comment'], !empty($ParsedID3v1['track']) ? $ParsedID3v1['track'] : '');
$ParsedID3v1['padding_valid'] = true;
if ($id3v1tag !== $GoodFormatID3v1tag) {
$ParsedID3v1['padding_valid'] = false;
$info['warning'][] = 'Some ID3v1 fields do not use NULL characters for padding';
}
$ParsedID3v1['tag_offset_end'] = $info['filesize'];
$ParsedID3v1['tag_offset_start'] = $ParsedID3v1['tag_offset_end'] - 128;
$info['id3v1'] = $ParsedID3v1;
}
if (substr($preid3v1, 0, 3) == 'TAG') {
// The way iTunes handles tags is, well, brain-damaged.
// It completely ignores v1 if ID3v2 is present.
// This goes as far as adding a new v1 tag *even if there already is one*
// A suspected double-ID3v1 tag has been detected, but it could be that
// the "TAG" identifier is a legitimate part of an APE or Lyrics3 tag
if (substr($preid3v1, 96, 8) == 'APETAGEX') {
// an APE tag footer was found before the last ID3v1, assume false "TAG" synch
} elseif (substr($preid3v1, 119, 6) == 'LYRICS') {
// a Lyrics3 tag footer was found before the last ID3v1, assume false "TAG" synch
} else {
// APE and Lyrics3 footers not found - assume double ID3v1
$info['warning'][] = 'Duplicate ID3v1 tag detected - this has been known to happen with iTunes';
$info['avdataend'] -= 128;
}
}
return true;
}
