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|
<?php
// +----------------------------------------------------------------------+
// | PHP version 5 |
// +----------------------------------------------------------------------+
// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2 of the GPL license, |
// | that is bundled with this package in the file license.txt and is |
// | available through the world-wide-web at the following url: |
// | http://www.gnu.org/copyleft/gpl.html |
// +----------------------------------------------------------------------+
// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org |
// +----------------------------------------------------------------------+
// | Authors: James Heinrich <info�getid3*org> |
// | Allan Hansen <ah�artemis*dk> |
// +----------------------------------------------------------------------+
// | module.tag.lyrics3.php |
// | module for analyzing Lyrics3 tags |
// | dependencies: module.tag.apetag.php (optional) |
// +----------------------------------------------------------------------+
//
// $Id: module.tag.lyrics3.php,v 1.5 2006/11/16 22:04:23 ah Exp $
class getid3_lyrics3 extends getid3_handler
{
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;
$lyrics3_version = 1;
}
// Lyrics3v2, ID3v1, no APE
elseif ($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;
$lyrics3_version = 2;
}
// Lyrics3v1, no ID3v1, no APE
elseif (substr(strrev($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) - $lyrics3_size;
}
// Lyrics3v2, no ID3v1, no APE
elseif (substr(strrev($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;
$getid3->warning('APE tag located after Lyrics3, will probably break Lyrics3 compatability');
}
// Lyrics3v2, APE, maybe ID3v1
elseif ($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'];
$apetag->Analyze();
}
}
return true;
}
public static function Lyrics3Timestamp2Seconds($rawtimestamp) {
if (preg_match('/^\\[([0-9]{2}):([0-9]{2})\\]$/', $rawtimestamp, $regs)) {
return (int)(($regs[1] * 60) + $regs[2]);
}
return false;
}
public static function Lyrics3LyricsTimestampParse(&$lyrics3_data) {
$lyrics_array = explode("\r\n", $lyrics3_data['raw']['LYR']);
foreach ($lyrics_array as $key => $lyric_line) {
while (preg_match('/^(\\[[0-9]{2}:[0-9]{2}\\])/', $lyric_line, $regs)) {
$this_line_timestamps[] = getid3_lyrics3::Lyrics3Timestamp2Seconds($regs[0]);
$lyric_line = str_replace($regs[0], '', $lyric_line);
}
$no_timestamp_lyrics_array[$key] = $lyric_line;
if (@is_array($this_line_timestamps)) {
sort($this_line_timestamps);
foreach ($this_line_timestamps as $timestampkey => $timestamp) {
if (isset($lyrics3_data['synchedlyrics'][$timestamp])) {
// timestamps only have a 1-second resolution, it's possible that multiple lines
// could have the same timestamp, if so, append
$lyrics3_data['synchedlyrics'][$timestamp] .= "\r\n".$lyric_line;
} else {
$lyrics3_data['synchedlyrics'][$timestamp] = $lyric_line;
}
}
}
unset($this_line_timestamps);
$regs = array ();
}
$lyrics3_data['unsynchedlyrics'] = implode("\r\n", $no_timestamp_lyrics_array);
if (isset($lyrics3_data['synchedlyrics']) && is_array($lyrics3_data['synchedlyrics'])) {
ksort($lyrics3_data['synchedlyrics']);
}
return true;
}
public static function IntString2Bool($char) {
return $char == '1' ? true : ($char == '0' ? false : null);
}
}
?>
|
