public function Analyze()
{
$info =& $this->getid3->info;
// http://www.volweb.cz/str/tags.htm
if (!getid3_lib::intValueSupported($info['filesize'])) {
$info['warning'][] = 'Unable to check for Lyrics3 because file is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB';
return false;
}
$this->fseek(0 - 128 - 9 - 6, SEEK_END);
// end - ID3v1 - "LYRICSEND" - [Lyrics3size]
$lyrics3_id3v1 = $this->fread(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 = $info['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 = $info['filesize'] - 128 - $lyrics3size;
$lyrics3version = 2;
} elseif (substr(strrev($lyrics3_id3v1), 0, 9) == strrev('LYRICSEND')) {
// Lyrics3v1, no ID3v1, no APE
$lyrics3size = 5100;
$lyrics3offset = $info['filesize'] - $lyrics3size;
$lyrics3version = 1;
$lyrics3offset = $info['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 = $info['filesize'] - $lyrics3size;
$lyrics3version = 2;
} else {
if (isset($info['ape']['tag_offset_start']) && $info['ape']['tag_offset_start'] > 15) {
$this->fseek($info['ape']['tag_offset_start'] - 15);
$lyrics3lsz = $this->fread(6);
$lyrics3end = $this->fread(9);
if ($lyrics3end == 'LYRICSEND') {
// Lyrics3v1, APE, maybe ID3v1
$lyrics3size = 5100;
$lyrics3offset = $info['ape']['tag_offset_start'] - $lyrics3size;
$info['avdataend'] = $lyrics3offset;
$lyrics3version = 1;
$info['warning'][] = 'APE tag located after Lyrics3, will probably break Lyrics3 compatability';
} elseif ($lyrics3end == 'LYRICS200') {
// Lyrics3v2, APE, maybe ID3v1
$lyrics3size = $lyrics3lsz + 6 + strlen('LYRICS200');
// LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200'
$lyrics3offset = $info['ape']['tag_offset_start'] - $lyrics3size;
$lyrics3version = 2;
$info['warning'][] = 'APE tag located after Lyrics3, will probably break Lyrics3 compatability';
}
}
}
if (isset($lyrics3offset)) {
$info['avdataend'] = $lyrics3offset;
$this->getLyrics3Data($lyrics3offset, $lyrics3version, $lyrics3size);
if (!isset($info['ape'])) {
$GETID3_ERRORARRAY =& $info['warning'];
getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.tag.apetag.php', __FILE__, true);
$getid3_temp = new getID3();
$getid3_temp->openfile($this->getid3->filename);
$getid3_apetag = new getid3_apetag($getid3_temp);
$getid3_apetag->overrideendoffset = $info['lyrics3']['tag_offset_start'];
$getid3_apetag->Analyze();
if (!empty($getid3_temp->info['ape'])) {
$info['ape'] = $getid3_temp->info['ape'];
}
if (!empty($getid3_temp->info['replay_gain'])) {
$info['replay_gain'] = $getid3_temp->info['replay_gain'];
}
unset($getid3_temp, $getid3_apetag);
}
}
return true;
}
protected function ParseAPEtagFlags($raw_flag_int)
{
// "Note: APE Tags 1.0 do not use any of the APE Tag flags.
// All are set to zero on creation and ignored on reading."
// http://www.uni-jena.de/~pfk/mpp/sv8/apetagflags.html
$target['header'] = (bool) ($raw_flag_int & 2147483648.0);
$target['footer'] = (bool) ($raw_flag_int & 0x40000000);
$target['this_is_header'] = (bool) ($raw_flag_int & 0x20000000);
$target['item_contents_raw'] = ($raw_flag_int & 0x6) >> 1;
$target['read_only'] = (bool) ($raw_flag_int & 0x1);
$target['item_contents'] = getid3_apetag::APEcontentTypeFlagLookup($target['item_contents_raw']);
return $target;
}
public function Analyze()
{
$getid3 = $this->getid3;
fseek($getid3->fp, 0 - 128 - 9 - 6, SEEK_END);
// end - ID3v1 - LYRICSEND - [Lyrics3size]
$lyrics3_id3v1 = fread($getid3->fp, 128 + 9 + 6);
$lyrics3_lsz = substr($lyrics3_id3v1, 0, 6);
// Lyrics3size
$lyrics3_end = substr($lyrics3_id3v1, 6, 9);
// LYRICSEND or LYRICS200
$id3v1_tag = substr($lyrics3_id3v1, 15, 128);
// ID3v1
// Lyrics3v1, ID3v1, no APE
if ($lyrics3_end == 'LYRICSEND') {
$lyrics3_size = 5100;
$lyrics3_offset = filesize($getid3->filename) - 128 - $lyrics3_size;
$lyrics3_version = 1;
} elseif ($lyrics3_end == 'LYRICS200') {
// LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200'
$lyrics3_size = $lyrics3_lsz + 6 + strlen('LYRICS200');
$lyrics3_offset = filesize($getid3->filename) - 128 - $lyrics3_size;
$lyrics3_version = 2;
} elseif (substr(strrev($lyrics3_id3v1), 0, 9) == 'DNESCIRYL') {
// strrev('LYRICSEND') = 'DNESCIRYL'
$lyrics3_size = 5100;
$lyrics3_offset = filesize($getid3->filename) - $lyrics3_size;
$lyrics3_version = 1;
$lyrics3_offset = filesize($getid3->filename) - $lyrics3_size;
} elseif (substr(strrev($lyrics3_id3v1), 0, 9) == '002SCIRYL') {
// strrev('LYRICS200') = '002SCIRYL'
$lyrics3_size = strrev(substr(strrev($lyrics3_id3v1), 9, 6)) + 15;
// LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200' // 15 = 6 + strlen('LYRICS200')
$lyrics3_offset = filesize($getid3->filename) - $lyrics3_size;
$lyrics3_version = 2;
} elseif (isset($getid3->info['ape']['tag_offset_start']) && $getid3->info['ape']['tag_offset_start'] > 15) {
fseek($getid3->fp, $getid3->info['ape']['tag_offset_start'] - 15, SEEK_SET);
$lyrics3_lsz = fread($getid3->fp, 6);
$lyrics3_end = fread($getid3->fp, 9);
// Lyrics3v1, APE, maybe ID3v1
if ($lyrics3_end == 'LYRICSEND') {
$lyrics3_size = 5100;
$lyrics3_offset = $getid3->info['ape']['tag_offset_start'] - $lyrics3_size;
$getid3->info['avdataend'] = $lyrics3_offset;
$lyrics3_version = 1;
$getid3->warning('APE tag located after Lyrics3, will probably break Lyrics3 compatability');
} elseif ($lyrics3_end == 'LYRICS200') {
$lyrics3_size = $lyrics3_lsz + 15;
// LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200'
$lyrics3_offset = $getid3->info['ape']['tag_offset_start'] - $lyrics3_size;
$lyrics3_version = 2;
$getid3->warning('APE tag located after Lyrics3, will probably break Lyrics3 compatability');
}
}
//// GetLyrics3Data()
if (isset($lyrics3_offset)) {
$getid3->info['avdataend'] = $lyrics3_offset;
if ($lyrics3_size <= 0) {
return false;
}
fseek($getid3->fp, $lyrics3_offset, SEEK_SET);
$raw_data = fread($getid3->fp, $lyrics3_size);
if (substr($raw_data, 0, 11) != 'LYRICSBEGIN') {
if (strpos($raw_data, 'LYRICSBEGIN') !== false) {
$getid3->warning('"LYRICSBEGIN" expected at ' . $lyrics3_offset . ' but actually found at ' . ($lyrics3_offset + strpos($raw_data, 'LYRICSBEGIN')) . ' - this is invalid for Lyrics3 v' . $lyrics3_version);
$getid3->info['avdataend'] = $lyrics3_offset + strpos($raw_data, 'LYRICSBEGIN');
$parsed_lyrics3['tag_offset_start'] = $getid3->info['avdataend'];
$raw_data = substr($raw_data, strpos($raw_data, 'LYRICSBEGIN'));
$lyrics3_size = strlen($raw_data);
} else {
throw new getid3_exception('"LYRICSBEGIN" expected at ' . $lyrics3_offset . ' but found "' . substr($raw_data, 0, 11) . '" instead.');
}
}
$parsed_lyrics3['raw']['lyrics3version'] = $lyrics3_version;
$parsed_lyrics3['raw']['lyrics3tagsize'] = $lyrics3_size;
$parsed_lyrics3['tag_offset_start'] = $lyrics3_offset;
$parsed_lyrics3['tag_offset_end'] = $lyrics3_offset + $lyrics3_size;
switch ($lyrics3_version) {
case 1:
if (substr($raw_data, strlen($raw_data) - 9, 9) == 'LYRICSEND') {
$parsed_lyrics3['raw']['LYR'] = trim(substr($raw_data, 11, strlen($raw_data) - 11 - 9));
getid3_lyrics3::Lyrics3LyricsTimestampParse($parsed_lyrics3);
} else {
throw new getid3_exception('"LYRICSEND" expected at ' . (ftell($getid3->fp) - 11 + $lyrics3_size - 9) . ' but found "' . substr($raw_data, strlen($raw_data) - 9, 9) . '" instead.');
}
break;
case 2:
if (substr($raw_data, strlen($raw_data) - 9, 9) == 'LYRICS200') {
$parsed_lyrics3['raw']['unparsed'] = substr($raw_data, 11, strlen($raw_data) - 11 - 9 - 6);
// LYRICSBEGIN + LYRICS200 + LSZ
$raw_data = $parsed_lyrics3['raw']['unparsed'];
while (strlen($raw_data) > 0) {
$fieldname = substr($raw_data, 0, 3);
$fieldsize = (int) substr($raw_data, 3, 5);
$parsed_lyrics3['raw'][$fieldname] = substr($raw_data, 8, $fieldsize);
$raw_data = substr($raw_data, 3 + 5 + $fieldsize);
}
if (isset($parsed_lyrics3['raw']['IND'])) {
$i = 0;
foreach (array('lyrics', 'timestamps', 'inhibitrandom') as $flagname) {
if (strlen($parsed_lyrics3['raw']['IND']) > ++$i) {
$parsed_lyrics3['flags'][$flagname] = getid3_lyrics3::IntString2Bool(substr($parsed_lyrics3['raw']['IND'], $i, 1));
}
}
}
foreach (array('ETT' => 'title', 'EAR' => 'artist', 'EAL' => 'album', 'INF' => 'comment', 'AUT' => 'author') as $key => $value) {
if (isset($parsed_lyrics3['raw'][$key])) {
$parsed_lyrics3['comments'][$value][] = trim($parsed_lyrics3['raw'][$key]);
}
}
if (isset($parsed_lyrics3['raw']['IMG'])) {
foreach (explode("\r\n", $parsed_lyrics3['raw']['IMG']) as $key => $image_string) {
if (strpos($image_string, '||') !== false) {
$imagearray = explode('||', $image_string);
$parsed_lyrics3['images'][$key]['filename'] = @$imagearray[0];
$parsed_lyrics3['images'][$key]['description'] = @$imagearray[1];
$parsed_lyrics3['images'][$key]['timestamp'] = getid3_lyrics3::Lyrics3Timestamp2Seconds(@$imagearray[2]);
}
}
}
if (isset($parsed_lyrics3['raw']['LYR'])) {
getid3_lyrics3::Lyrics3LyricsTimestampParse($parsed_lyrics3);
}
} else {
throw new getid3_exception('"LYRICS200" expected at ' . (ftell($getid3->fp) - 11 + $lyrics3_size - 9) . ' but found "' . substr($raw_data, strlen($raw_data) - 9, 9) . '" instead.');
}
break;
default:
throw new getid3_exception('Cannot process Lyrics3 version ' . $lyrics3_version . ' (only v1 and v2)');
}
if (isset($getid3->info['id3v1']['tag_offset_start']) && $getid3->info['id3v1']['tag_offset_start'] < $parsed_lyrics3['tag_offset_end']) {
$getid3->warning('ID3v1 tag information ignored since it appears to be a false synch in Lyrics3 tag data');
unset($getid3->info['id3v1']);
}
$getid3->info['lyrics3'] = $parsed_lyrics3;
// Check for APE tag after lyrics3
if (!@$getid3->info['ape'] && $getid3->option_tag_apetag && class_exists('getid3_apetag')) {
$apetag = new getid3_apetag($getid3);
$apetag->option_override_end_offset = $getid3->info['lyrics3']['tag_offset_start'];
$apetag->Analyze();
}
}
return true;
}
public function remove()
{
$engine = new getid3();
$engine->filename = $this->filename;
$engine->fp = fopen($this->filename, 'rb');
$engine->include_module('tag.apetag');
$tag = new getid3_apetag($engine);
$tag->Analyze();
if (isset($engine->info['ape']['tag_offset_start']) && isset($engine->info['ape']['tag_offset_end'])) {
if (!($fp = @fopen($this->filename, 'a+b'))) {
throw new getid3_exception('Could not open a+b: ' . $this->filename);
}
// get data after apetag
if (filesize($this->filename) > $engine->info['ape']['tag_offset_end']) {
fseek($fp, $engine->info['ape']['tag_offset_end'], SEEK_SET);
$data_after_ape = fread($fp, filesize($this->filename) - $engine->info['ape']['tag_offset_end']);
}
// truncate file before start of apetag
ftruncate($fp, $engine->info['ape']['tag_offset_start']);
// rewrite data after apetag
if (isset($data_after_ape)) {
fseek($fp, $engine->info['ape']['tag_offset_start'], SEEK_SET);
fwrite($fp, $data_after_ape, strlen($data_after_ape));
}
fclose($fp);
clearstatcache();
}
// success when removing non-existant tag
return true;
}