mirror of
https://github.com/Yetangitu/ampache
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324 lines
No EOL
12 KiB
PHP
324 lines
No EOL
12 KiB
PHP
<?php
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// +----------------------------------------------------------------------+
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// | PHP version 5 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2 of the GPL license, |
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// | that is bundled with this package in the file license.txt and is |
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// | available through the world-wide-web at the following url: |
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// | http://www.gnu.org/copyleft/gpl.html |
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// +----------------------------------------------------------------------+
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// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org |
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// +----------------------------------------------------------------------+
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// | Authors: James Heinrich <infoØgetid3*org> |
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// | Allan Hansen <ahØartemis*dk> |
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// +----------------------------------------------------------------------+
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// | module.tag.id3v1.php |
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// | module for analyzing ID3v1 tags |
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// | dependencies: NONE |
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// +----------------------------------------------------------------------+
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//
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// $Id: module.tag.id3v1.php,v 1.6 2006/11/16 16:19:52 ah Exp $
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class getid3_id3v1 extends getid3_handler
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{
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public function Analyze() {
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$getid3 = $this->getid3;
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fseek($getid3->fp, -256, SEEK_END);
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$pre_id3v1 = fread($getid3->fp, 128);
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$id3v1_tag = fread($getid3->fp, 128);
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if (substr($id3v1_tag, 0, 3) == 'TAG') {
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$getid3->info['avdataend'] -= 128;
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// Shortcut
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$getid3->info['id3v1'] = array ();
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$info_id3v1 = &$getid3->info['id3v1'];
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$info_id3v1['title'] = getid3_id3v1::cutfield(substr($id3v1_tag, 3, 30));
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$info_id3v1['artist'] = getid3_id3v1::cutfield(substr($id3v1_tag, 33, 30));
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$info_id3v1['album'] = getid3_id3v1::cutfield(substr($id3v1_tag, 63, 30));
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$info_id3v1['year'] = getid3_id3v1::cutfield(substr($id3v1_tag, 93, 4));
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$info_id3v1['comment'] = substr($id3v1_tag, 97, 30); // can't remove nulls yet, track detection depends on them
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$info_id3v1['genreid'] = ord(substr($id3v1_tag, 127, 1));
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// If second-last byte of comment field is null and last byte of comment field is non-null then this is ID3v1.1 and the comment field is 28 bytes long and the 30th byte is the track number
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if (($id3v1_tag{125} === "\x00") && ($id3v1_tag{126} !== "\x00")) {
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$info_id3v1['track'] = ord(substr($info_id3v1['comment'], 29, 1));
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$info_id3v1['comment'] = substr($info_id3v1['comment'], 0, 28);
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}
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$info_id3v1['comment'] = getid3_id3v1::cutfield($info_id3v1['comment']);
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$info_id3v1['genre'] = getid3_id3v1::LookupGenreName($info_id3v1['genreid']);
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if (!empty($info_id3v1['genre'])) {
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unset($info_id3v1['genreid']);
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}
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if (empty($info_id3v1['genre']) || (@$info_id3v1['genre'] == 'Unknown')) {
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unset($info_id3v1['genre']);
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}
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foreach ($info_id3v1 as $key => $value) {
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$key != 'comments' and $info_id3v1['comments'][$key][0] = $value;
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}
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$info_id3v1['tag_offset_end'] = filesize($getid3->filename);
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$info_id3v1['tag_offset_start'] = $info_id3v1['tag_offset_end'] - 128;
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}
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if (substr($pre_id3v1, 0, 3) == 'TAG') {
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// The way iTunes handles tags is, well, brain-damaged.
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// It completely ignores v1 if ID3v2 is present.
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// This goes as far as adding a new v1 tag *even if there already is one*
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// 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
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if (substr($pre_id3v1, 96, 8) == 'APETAGEX') {
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// an APE tag footer was found before the last ID3v1, assume false "TAG" synch
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} elseif (substr($pre_id3v1, 119, 6) == 'LYRICS') {
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// a Lyrics3 tag footer was found before the last ID3v1, assume false "TAG" synch
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} else {
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// APE and Lyrics3 footers not found - assume double ID3v1
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$getid3->warning('Duplicate ID3v1 tag detected - this has been known to happen with iTunes.');
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$getid3->info['avdataend'] -= 128;
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}
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}
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return true;
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}
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public static function cutfield($str) {
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return trim(substr($str, 0, strcspn($str, "\x00")));
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}
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public static function ArrayOfGenres($allow_SCMPX_extended=false) {
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static $lookup = array (
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0 => 'Blues',
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1 => 'Classic Rock',
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2 => 'Country',
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3 => 'Dance',
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4 => 'Disco',
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5 => 'Funk',
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6 => 'Grunge',
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7 => 'Hip-Hop',
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8 => 'Jazz',
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9 => 'Metal',
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10 => 'New Age',
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11 => 'Oldies',
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12 => 'Other',
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13 => 'Pop',
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14 => 'R&B',
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15 => 'Rap',
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16 => 'Reggae',
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17 => 'Rock',
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18 => 'Techno',
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19 => 'Industrial',
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20 => 'Alternative',
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21 => 'Ska',
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22 => 'Death Metal',
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23 => 'Pranks',
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24 => 'Soundtrack',
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25 => 'Euro-Techno',
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26 => 'Ambient',
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27 => 'Trip-Hop',
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28 => 'Vocal',
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29 => 'Jazz+Funk',
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30 => 'Fusion',
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31 => 'Trance',
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32 => 'Classical',
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33 => 'Instrumental',
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34 => 'Acid',
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35 => 'House',
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36 => 'Game',
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37 => 'Sound Clip',
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38 => 'Gospel',
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39 => 'Noise',
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40 => 'Alt. Rock',
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41 => 'Bass',
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42 => 'Soul',
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43 => 'Punk',
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44 => 'Space',
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45 => 'Meditative',
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46 => 'Instrumental Pop',
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47 => 'Instrumental Rock',
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48 => 'Ethnic',
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49 => 'Gothic',
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50 => 'Darkwave',
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51 => 'Techno-Industrial',
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52 => 'Electronic',
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53 => 'Pop-Folk',
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54 => 'Eurodance',
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55 => 'Dream',
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56 => 'Southern Rock',
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57 => 'Comedy',
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58 => 'Cult',
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59 => 'Gangsta Rap',
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60 => 'Top 40',
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61 => 'Christian Rap',
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62 => 'Pop/Funk',
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63 => 'Jungle',
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64 => 'Native American',
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65 => 'Cabaret',
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66 => 'New Wave',
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67 => 'Psychedelic',
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68 => 'Rave',
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69 => 'Showtunes',
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70 => 'Trailer',
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71 => 'Lo-Fi',
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72 => 'Tribal',
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73 => 'Acid Punk',
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74 => 'Acid Jazz',
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75 => 'Polka',
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76 => 'Retro',
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77 => 'Musical',
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78 => 'Rock & Roll',
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79 => 'Hard Rock',
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80 => 'Folk',
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81 => 'Folk/Rock',
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82 => 'National Folk',
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83 => 'Swing',
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84 => 'Fast-Fusion',
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85 => 'Bebob',
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86 => 'Latin',
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87 => 'Revival',
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88 => 'Celtic',
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89 => 'Bluegrass',
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90 => 'Avantgarde',
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91 => 'Gothic Rock',
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92 => 'Progressive Rock',
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93 => 'Psychedelic Rock',
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94 => 'Symphonic Rock',
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95 => 'Slow Rock',
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96 => 'Big Band',
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97 => 'Chorus',
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98 => 'Easy Listening',
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99 => 'Acoustic',
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100 => 'Humour',
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101 => 'Speech',
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102 => 'Chanson',
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103 => 'Opera',
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104 => 'Chamber Music',
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105 => 'Sonata',
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106 => 'Symphony',
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107 => 'Booty Bass',
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108 => 'Primus',
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109 => 'Porn Groove',
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110 => 'Satire',
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111 => 'Slow Jam',
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112 => 'Club',
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113 => 'Tango',
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114 => 'Samba',
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115 => 'Folklore',
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116 => 'Ballad',
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117 => 'Power Ballad',
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118 => 'Rhythmic Soul',
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119 => 'Freestyle',
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120 => 'Duet',
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121 => 'Punk Rock',
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122 => 'Drum Solo',
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123 => 'A Cappella',
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124 => 'Euro-House',
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125 => 'Dance Hall',
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126 => 'Goa',
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127 => 'Drum & Bass',
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128 => 'Club-House',
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129 => 'Hardcore',
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130 => 'Terror',
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131 => 'Indie',
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132 => 'BritPop',
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133 => 'Negerpunk',
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134 => 'Polsk Punk',
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135 => 'Beat',
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136 => 'Christian Gangsta Rap',
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137 => 'Heavy Metal',
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138 => 'Black Metal',
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139 => 'Crossover',
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140 => 'Contemporary Christian',
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141 => 'Christian Rock',
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142 => 'Merengue',
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143 => 'Salsa',
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144 => 'Trash Metal',
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145 => 'Anime',
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146 => 'JPop',
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147 => 'Synthpop',
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255 => 'Unknown',
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'CR' => 'Cover',
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'RX' => 'Remix'
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);
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static $lookupSCMPX = array ();
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if ($allow_SCMPX_extended && empty($lookupSCMPX)) {
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$lookupSCMPX = $lookup;
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// http://www.geocities.co.jp/SiliconValley-Oakland/3664/alittle.html#GenreExtended
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// Extended ID3v1 genres invented by SCMPX
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// Note that 255 "Japanese Anime" conflicts with standard "Unknown"
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$lookupSCMPX[240] = 'Sacred';
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$lookupSCMPX[241] = 'Northern Europe';
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$lookupSCMPX[242] = 'Irish & Scottish';
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$lookupSCMPX[243] = 'Scotland';
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$lookupSCMPX[244] = 'Ethnic Europe';
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$lookupSCMPX[245] = 'Enka';
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$lookupSCMPX[246] = 'Children\'s Song';
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$lookupSCMPX[247] = 'Japanese Sky';
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$lookupSCMPX[248] = 'Japanese Heavy Rock';
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$lookupSCMPX[249] = 'Japanese Doom Rock';
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$lookupSCMPX[250] = 'Japanese J-POP';
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$lookupSCMPX[251] = 'Japanese Seiyu';
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$lookupSCMPX[252] = 'Japanese Ambient Techno';
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$lookupSCMPX[253] = 'Japanese Moemoe';
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$lookupSCMPX[254] = 'Japanese Tokusatsu';
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//$lookupSCMPX[255] = 'Japanese Anime';
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}
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return ($allow_SCMPX_extended ? $lookupSCMPX : $lookup);
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}
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public static function LookupGenreName($genre_id, $allow_SCMPX_extended=true) {
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switch ($genre_id) {
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case 'RX':
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case 'CR':
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break;
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default:
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$genre_id = intval($genre_id); // to handle 3 or '3' or '03'
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break;
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}
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$lookup = getid3_id3v1::ArrayOfGenres($allow_SCMPX_extended);
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return (isset($lookup[$genre_id]) ? $lookup[$genre_id] : false);
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}
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public static function LookupGenreID($genre, $allow_SCMPX_extended=false) {
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$lookup = getid3_id3v1::ArrayOfGenres($allow_SCMPX_extended);
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$lower_case_no_space_search_term = strtolower(str_replace(' ', '', $genre));
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foreach ($lookup as $key => $value) {
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foreach ($lookup as $key => $value) {
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if (strtolower(str_replace(' ', '', $value)) == $lower_case_no_space_search_term) {
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return $key;
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}
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}
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return false;
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}
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return (isset($lookup[$genre_id]) ? $lookup[$genre_id] : false);
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}
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}
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?>
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