<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org> //
// available at http://getid3.sourceforge.net ///
// or http://www.getid3.org ///
/////////////////////////////////////////////////////////////////
// //
// getid3.lyrics3.php - part of getID3() //
// See getid3.readme.txt for more details //
// //
/////////////////////////////////////////////////////////////////
function getLyrics3Filepointer(&$fd, &$ThisFileInfo) {
// http://www.volweb.cz/str/tags.htm
fseek($fd, (0 - 128 - 9 - 6), SEEK_END); // end - ID3v1 - LYRICSEND - [Lyrics3size]
$lyrics3_id3v1 = fread($fd, (128 + 9 + 6));
$lyrics3lsz = substr($lyrics3_id3v1, 0, 6); // Lyrics3size
$lyrics3end = substr($lyrics3_id3v1, 6, 9); // LYRICSEND or LYRICS200
$id3v1tag = substr($lyrics3_id3v1, 15, 128); // ID3v1
if ($lyrics3end == 'LYRICSEND') {
// Lyrics3v1, ID3v1, no APE
$lyrics3size = 5100;
$lyrics3offset = $ThisFileInfo['filesize'] - 128 - $lyrics3size;
$lyrics3version = 1;
} elseif ($lyrics3end == 'LYRICS200') {
// Lyrics3v2, ID3v1, no APE
// LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200'
$lyrics3size = $lyrics3lsz + 6 + strlen('LYRICS200');
$lyrics3offset = $ThisFileInfo['filesize'] - 128 - $lyrics3size;
$lyrics3version = 2;
} elseif (substr(strrev($lyrics3_id3v1), 0, 9) == strrev('LYRICSEND')) {
// Lyrics3v1, no ID3v1, no APE
$lyrics3size = 5100;
$lyrics3offset = $ThisFileInfo['filesize'] - $lyrics3size;
$lyrics3version = 1;
$lyrics3offset = $ThisFileInfo['filesize'] - $lyrics3size;
} elseif (substr(strrev($lyrics3_id3v1), 0, 9) == strrev('LYRICS200')) {
// Lyrics3v2, no ID3v1, no APE
$lyrics3size = strrev(substr(strrev($lyrics3_id3v1), 9, 6)) + 6 + strlen('LYRICS200'); // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200'
$lyrics3offset = $ThisFileInfo['filesize'] - $lyrics3size;
$lyrics3version = 2;
} else {
if (!isset($ThisFileInfo['ape'])) {
require_once(GETID3_INCLUDEPATH.'getid3.ape.php');
getAPEtagFilepointer($fd, $ThisFileInfo);
}
if (isset($ThisFileInfo['ape']['tag_offset_start']) && ($ThisFileInfo['ape']['tag_offset_start'] > 15)) {
fseek($fd, $ThisFileInfo['ape']['tag_offset_start'] - 15, SEEK_SET);
$lyrics3lsz = fread($fd, 6);
$lyrics3end = fread($fd, 9);
if ($lyrics3end == 'LYRICSEND') {
// Lyrics3v1, APE, maybe ID3v1
$lyrics3size = 5100;
$lyrics3offset = $ThisFileInfo['ape']['tag_offset_start'] - $lyrics3size;
$ThisFileInfo['avdataend'] = $lyrics3offset;
$lyrics3version = 1;
$ThisFileInfo['warning'] .= "\n".'APE tag located after Lyrics3, will probably break Lyrics3 compatability';
} elseif ($lyrics3end == 'LYRICS200') {
// Lyrics3v2, APE, maybe ID3v1
$lyrics3size = $lyrics3lsz + 6 + strlen('LYRICS200'); // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200'
$lyrics3offset = $ThisFileInfo['ape']['tag_offset_start'] - $lyrics3size;
$lyrics3version = 2;
$ThisFileInfo['warning'] .= "\n".'APE tag located before Lyrics3, will probably break Lyrics3 compatability';
}
}
}
if (isset($lyrics3offset)) {
$ThisFileInfo['avdataend'] = $lyrics3offset;
getLyrics3Data($ThisFileInfo, $fd, $lyrics3offset, $lyrics3version, $lyrics3size);
if (!isset($ThisFileInfo['ape'])) {
require_once(GETID3_INCLUDEPATH.'getid3.ape.php');
getAPEtagFilepointer($fd, $ThisFileInfo, $ThisFileInfo['lyrics3']['tag_offset_start']);
}
}
return true;
}
function getLyrics3Data(&$ThisFileInfo, &$fd, $endoffset, $version, $length) {
// http://www.volweb.cz/str/tags.htm
fseek($fd, $endoffset, SEEK_SET);
$rawdata = fread($fd, $length);
if (substr($rawdata, 0, 11) != 'LYRICSBEGIN') {
if (strpos($rawdata, 'LYRICSBEGIN') !== false) {
$ThisFileInfo['warning'] .= "\n".'"LYRICSBEGIN" expected at '.$endoffset.' but actually found at '.($endoffset + strpos($rawdata, 'LYRICSBEGIN')).' - this is invalid for Lyrics3 v'.$version;
$ThisFileInfo['avdataend'] = $endoffset + strpos($rawdata, 'LYRICSBEGIN');
$ThisFileInfo['lyrics3']['tag_offset_start'] = $ThisFileInfo['avdataend'];
$rawdata = substr($rawdata, strpos($rawdata, 'LYRICSBEGIN'));
$length = strlen($rawdata);
} else {
$ThisFileInfo['error'] .= "\n".'"LYRICSBEGIN" expected at '.$endoffset.' but found "'.substr($rawdata, 0, 11).'" instead';
return false;
}
}
$ThisFileInfo['lyrics3']['raw']['lyrics3version'] = $version;
$ThisFileInfo['lyrics3']['raw']['lyrics3tagsize'] = $length;
$ThisFileInfo['lyrics3']['tag_offset_start'] = $endoffset;
$ThisFileInfo['lyrics3']['tag_offset_end'] = $endoffset + $length;
switch ($version) {
case 1:
$ThisFileInfo['tags'][] = 'lyrics3';
if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICSEND') {
$ThisFileInfo['lyrics3']['raw']['LYR'] = trim(substr($rawdata, 11, strlen($rawdata) - 11 - 9));
Lyrics3LyricsTimestampParse($ThisFileInfo);
} else {
$ThisFileInfo['error'] .= "\n".'"LYRICSEND" expected at '.(ftell($fd) - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead';
}
break;
case 2:
$ThisFileInfo['tags'][] = 'lyrics3';
if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICS200') {
$ThisFileInfo['lyrics3']['raw']['unparsed'] = substr($rawdata, 11, strlen($rawdata) - 11 - 9 - 6); // LYRICSBEGIN + LYRICS200 + LSZ
$rawdata = $ThisFileInfo['lyrics3']['raw']['unparsed'];
while (strlen($rawdata) > 0) {
$fieldname = substr($rawdata, 0, 3);
$fieldsize = (int) substr($rawdata, 3, 5);
$ThisFileInfo['lyrics3']['raw']["$fieldname"] = substr($rawdata, 8, $fieldsize);
$rawdata = substr($rawdata, 3 + 5 + $fieldsize);
}
if (isset($ThisFileInfo['lyrics3']['raw']['IND'])) {
$i = 0;
$flagnames = array('lyrics', 'timestamps', 'inhibitrandom');
foreach ($flagnames as $flagname) {
if (strlen($ThisFileInfo['lyrics3']['raw']['IND']) > ++$i) {
$ThisFileInfo['lyrics3']['flags']["$flagname"] = IntString2Bool(substr($ThisFileInfo['lyrics3']['raw']['IND'], $i, 1));
}
}
}
$fieldnametranslation = array('ETT'=>'title', 'EAR'=>'artist', 'EAL'=>'album', 'INF'=>'comment', 'AUT'=>'author');
foreach ($fieldnametranslation as $key => $value) {
if (isset($ThisFileInfo['lyrics3']['raw']["$key"])) {
$ThisFileInfo['lyrics3']['comments']["$value"][] = trim($ThisFileInfo['lyrics3']['raw']["$key"]);
}
}
if (isset($ThisFileInfo['lyrics3']['raw']['IMG'])) {
$imagestrings = explode("\r\n", $ThisFileInfo['lyrics3']['raw']['IMG']);
foreach ($imagestrings as $key => $imagestring) {
if (strpos($imagestring, '||') !== false) {
$imagearray = explode('||', $imagestring);
$ThisFileInfo['lyrics3']['images']["$key"]['filename'] = $imagearray[0];
$ThisFileInfo['lyrics3']['images']["$key"]['description'] = $imagearray[1];
$ThisFileInfo['lyrics3']['images']["$key"]['timestamp'] = Lyrics3Timestamp2Seconds($imagearray[2]);
}
}
}
if (isset($ThisFileInfo['lyrics3']['raw']['LYR'])) {
Lyrics3LyricsTimestampParse($ThisFileInfo);
}
} else {
$ThisFileInfo['error'] .= "\n".'"LYRICS200" expected at '.(ftell($fd) - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead';
}
break;
default:
$ThisFileInfo['error'] .= "\n".'Cannot process Lyrics3 version '.$version.' (only v1 and v2)';
break;
}
return true;
}
function Lyrics3Timestamp2Seconds($rawtimestamp) {
if (ereg('^\\[([0-9]{2}):([0-9]{2})\\]$', $rawtimestamp, $regs)) {
return (int) (($regs[1] * 60) + $regs[2]);
}
return false;
}
function Lyrics3LyricsTimestampParse(&$ThisFileInfo) {
$lyricsarray = explode("\r\n", $ThisFileInfo['lyrics3']['raw']['LYR']);
foreach ($lyricsarray as $key => $lyricline) {
$regs = array();
unset($thislinetimestamps);
while (ereg('^(\\[[0-9]{2}:[0-9]{2}\\])', $lyricline, $regs)) {
$thislinetimestamps[] = Lyrics3Timestamp2Seconds($regs[0]);
$lyricline = str_replace($regs[0], '', $lyricline);
}
$notimestamplyricsarray["$key"] = $lyricline;
if (isset($thislinetimestamps) && is_array($thislinetimestamps)) {
sort($thislinetimestamps);
foreach ($thislinetimestamps as $timestampkey => $timestamp) {
if (isset($ThisFileInfo['lyrics3']['synchedlyrics'][$timestamp])) {
// timestamps only have a 1-second resolution, it's possible that multiple lines
// could have the same timestamp, if so, append
$ThisFileInfo['lyrics3']['synchedlyrics'][$timestamp] .= "\r\n".$lyricline;
} else {
$ThisFileInfo['lyrics3']['synchedlyrics'][$timestamp] = $lyricline;
}
}
}
}
$ThisFileInfo['lyrics3']['unsynchedlyrics'] = implode("\r\n", $notimestamplyricsarray);
if (isset($ThisFileInfo['lyrics3']['synchedlyrics']) && is_array($ThisFileInfo['lyrics3']['synchedlyrics'])) {
ksort($ThisFileInfo['lyrics3']['synchedlyrics']);
}
return true;
}
function DeleteLyrics3($filename) {
$ThisFileInfo = GetAllFileInfo($filename);
if (isset($ThisFileInfo['lyrics3']['tag_offset_start']) && isset($ThisFileInfo['lyrics3']['tag_offset_end'])) {
if ($fp = @fopen($filename, 'a+b')) {
flock($fp, LOCK_EX);
$oldignoreuserabort = ignore_user_abort(true);
fseek($fp, $ThisFileInfo['lyrics3']['tag_offset_end'], SEEK_SET);
$DataAfterLyrics3 = fread($fp, $ThisFileInfo['filesize'] - $ThisFileInfo['lyrics3']['tag_offset_end']);
ftruncate($fp, $ThisFileInfo['lyrics3']['tag_offset_start']);
fseek($fp, $ThisFileInfo['lyrics3']['tag_offset_start'], SEEK_SET);
fwrite($fp, $DataAfterLyrics3, strlen($DataAfterLyrics3));
flock($fp, LOCK_UN);
fclose($fp);
ignore_user_abort($oldignoreuserabort);
return true;
}
}
return false;
}
?>
