1 | <?php |
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2 | ///////////////////////////////////////////////////////////////// |
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3 | /// getID3() by James Heinrich <info@getid3.org> // |
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4 | // available at http://getid3.sourceforge.net // |
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5 | // or http://www.getid3.org // |
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6 | ///////////////////////////////////////////////////////////////// |
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7 | // See readme.txt for more details // |
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8 | ///////////////////////////////////////////////////////////////// |
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9 | /// // |
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10 | // module.tag.lyrics3.php // |
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11 | // module for analyzing Lyrics3 tags // |
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12 | // dependencies: module.tag.apetag.php (optional) // |
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13 | // /// |
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14 | ///////////////////////////////////////////////////////////////// |
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15 | |
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16 | |
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17 | class getid3_lyrics3 extends getid3_handler |
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18 | { |
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19 | |
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20 | public function Analyze() { |
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21 | $info = &$this->getid3->info; |
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22 | |
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23 | // http://www.volweb.cz/str/tags.htm |
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24 | |
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25 | if (!getid3_lib::intValueSupported($info['filesize'])) { |
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26 | $info['warning'][] = 'Unable to check for Lyrics3 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB'; |
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27 | return false; |
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28 | } |
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29 | |
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30 | fseek($this->getid3->fp, (0 - 128 - 9 - 6), SEEK_END); // end - ID3v1 - "LYRICSEND" - [Lyrics3size] |
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31 | $lyrics3_id3v1 = fread($this->getid3->fp, 128 + 9 + 6); |
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32 | $lyrics3lsz = substr($lyrics3_id3v1, 0, 6); // Lyrics3size |
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33 | $lyrics3end = substr($lyrics3_id3v1, 6, 9); // LYRICSEND or LYRICS200 |
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34 | $id3v1tag = substr($lyrics3_id3v1, 15, 128); // ID3v1 |
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35 | |
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36 | if ($lyrics3end == 'LYRICSEND') { |
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37 | // Lyrics3v1, ID3v1, no APE |
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38 | |
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39 | $lyrics3size = 5100; |
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40 | $lyrics3offset = $info['filesize'] - 128 - $lyrics3size; |
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41 | $lyrics3version = 1; |
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42 | |
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43 | } elseif ($lyrics3end == 'LYRICS200') { |
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44 | // Lyrics3v2, ID3v1, no APE |
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45 | |
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46 | // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200' |
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47 | $lyrics3size = $lyrics3lsz + 6 + strlen('LYRICS200'); |
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48 | $lyrics3offset = $info['filesize'] - 128 - $lyrics3size; |
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49 | $lyrics3version = 2; |
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50 | |
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51 | } elseif (substr(strrev($lyrics3_id3v1), 0, 9) == strrev('LYRICSEND')) { |
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52 | // Lyrics3v1, no ID3v1, no APE |
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53 | |
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54 | $lyrics3size = 5100; |
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55 | $lyrics3offset = $info['filesize'] - $lyrics3size; |
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56 | $lyrics3version = 1; |
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57 | $lyrics3offset = $info['filesize'] - $lyrics3size; |
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58 | |
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59 | } elseif (substr(strrev($lyrics3_id3v1), 0, 9) == strrev('LYRICS200')) { |
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60 | |
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61 | // Lyrics3v2, no ID3v1, no APE |
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62 | |
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63 | $lyrics3size = strrev(substr(strrev($lyrics3_id3v1), 9, 6)) + 6 + strlen('LYRICS200'); // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200' |
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64 | $lyrics3offset = $info['filesize'] - $lyrics3size; |
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65 | $lyrics3version = 2; |
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66 | |
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67 | } else { |
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68 | |
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69 | if (isset($info['ape']['tag_offset_start']) && ($info['ape']['tag_offset_start'] > 15)) { |
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70 | |
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71 | fseek($this->getid3->fp, $info['ape']['tag_offset_start'] - 15, SEEK_SET); |
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72 | $lyrics3lsz = fread($this->getid3->fp, 6); |
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73 | $lyrics3end = fread($this->getid3->fp, 9); |
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74 | |
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75 | if ($lyrics3end == 'LYRICSEND') { |
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76 | // Lyrics3v1, APE, maybe ID3v1 |
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77 | |
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78 | $lyrics3size = 5100; |
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79 | $lyrics3offset = $info['ape']['tag_offset_start'] - $lyrics3size; |
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80 | $info['avdataend'] = $lyrics3offset; |
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81 | $lyrics3version = 1; |
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82 | $info['warning'][] = 'APE tag located after Lyrics3, will probably break Lyrics3 compatability'; |
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83 | |
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84 | } elseif ($lyrics3end == 'LYRICS200') { |
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85 | // Lyrics3v2, APE, maybe ID3v1 |
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86 | |
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87 | $lyrics3size = $lyrics3lsz + 6 + strlen('LYRICS200'); // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200' |
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88 | $lyrics3offset = $info['ape']['tag_offset_start'] - $lyrics3size; |
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89 | $lyrics3version = 2; |
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90 | $info['warning'][] = 'APE tag located after Lyrics3, will probably break Lyrics3 compatability'; |
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91 | |
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92 | } |
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93 | |
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94 | } |
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95 | |
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96 | } |
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97 | |
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98 | if (isset($lyrics3offset)) { |
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99 | $info['avdataend'] = $lyrics3offset; |
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100 | $this->getLyrics3Data($lyrics3offset, $lyrics3version, $lyrics3size); |
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101 | |
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102 | if (!isset($info['ape'])) { |
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103 | $GETID3_ERRORARRAY = &$info['warning']; |
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104 | if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.apetag.php', __FILE__, false)) { |
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105 | $getid3_temp = new getID3(); |
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106 | $getid3_temp->openfile($this->getid3->filename); |
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107 | $getid3_apetag = new getid3_apetag($getid3_temp); |
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108 | $getid3_apetag->overrideendoffset = $info['lyrics3']['tag_offset_start']; |
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109 | $getid3_apetag->Analyze(); |
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110 | if (!empty($getid3_temp->info['ape'])) { |
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111 | $info['ape'] = $getid3_temp->info['ape']; |
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112 | } |
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113 | if (!empty($getid3_temp->info['replay_gain'])) { |
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114 | $info['replay_gain'] = $getid3_temp->info['replay_gain']; |
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115 | } |
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116 | unset($getid3_temp, $getid3_apetag); |
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117 | } |
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118 | } |
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119 | |
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120 | } |
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121 | |
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122 | return true; |
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123 | } |
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124 | |
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125 | public function getLyrics3Data($endoffset, $version, $length) { |
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126 | // http://www.volweb.cz/str/tags.htm |
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127 | |
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128 | $info = &$this->getid3->info; |
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129 | |
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130 | if (!getid3_lib::intValueSupported($endoffset)) { |
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131 | $info['warning'][] = 'Unable to check for Lyrics3 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB'; |
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132 | return false; |
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133 | } |
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134 | |
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135 | fseek($this->getid3->fp, $endoffset, SEEK_SET); |
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136 | if ($length <= 0) { |
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137 | return false; |
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138 | } |
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139 | $rawdata = fread($this->getid3->fp, $length); |
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140 | |
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141 | $ParsedLyrics3['raw']['lyrics3version'] = $version; |
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142 | $ParsedLyrics3['raw']['lyrics3tagsize'] = $length; |
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143 | $ParsedLyrics3['tag_offset_start'] = $endoffset; |
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144 | $ParsedLyrics3['tag_offset_end'] = $endoffset + $length - 1; |
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145 | |
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146 | if (substr($rawdata, 0, 11) != 'LYRICSBEGIN') { |
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147 | if (strpos($rawdata, 'LYRICSBEGIN') !== false) { |
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148 | |
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149 | $info['warning'][] = '"LYRICSBEGIN" expected at '.$endoffset.' but actually found at '.($endoffset + strpos($rawdata, 'LYRICSBEGIN')).' - this is invalid for Lyrics3 v'.$version; |
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150 | $info['avdataend'] = $endoffset + strpos($rawdata, 'LYRICSBEGIN'); |
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151 | $rawdata = substr($rawdata, strpos($rawdata, 'LYRICSBEGIN')); |
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152 | $length = strlen($rawdata); |
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153 | $ParsedLyrics3['tag_offset_start'] = $info['avdataend']; |
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154 | $ParsedLyrics3['raw']['lyrics3tagsize'] = $length; |
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155 | |
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156 | } else { |
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157 | |
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158 | $info['error'][] = '"LYRICSBEGIN" expected at '.$endoffset.' but found "'.substr($rawdata, 0, 11).'" instead'; |
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159 | return false; |
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160 | |
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161 | } |
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162 | |
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163 | } |
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164 | |
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165 | switch ($version) { |
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166 | |
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167 | case 1: |
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168 | if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICSEND') { |
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169 | $ParsedLyrics3['raw']['LYR'] = trim(substr($rawdata, 11, strlen($rawdata) - 11 - 9)); |
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170 | $this->Lyrics3LyricsTimestampParse($ParsedLyrics3); |
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171 | } else { |
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172 | $info['error'][] = '"LYRICSEND" expected at '.(ftell($this->getid3->fp) - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead'; |
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173 | return false; |
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174 | } |
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175 | break; |
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176 | |
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177 | case 2: |
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178 | if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICS200') { |
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179 | $ParsedLyrics3['raw']['unparsed'] = substr($rawdata, 11, strlen($rawdata) - 11 - 9 - 6); // LYRICSBEGIN + LYRICS200 + LSZ |
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180 | $rawdata = $ParsedLyrics3['raw']['unparsed']; |
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181 | while (strlen($rawdata) > 0) { |
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182 | $fieldname = substr($rawdata, 0, 3); |
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183 | $fieldsize = (int) substr($rawdata, 3, 5); |
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184 | $ParsedLyrics3['raw'][$fieldname] = substr($rawdata, 8, $fieldsize); |
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185 | $rawdata = substr($rawdata, 3 + 5 + $fieldsize); |
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186 | } |
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187 | |
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188 | if (isset($ParsedLyrics3['raw']['IND'])) { |
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189 | $i = 0; |
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190 | $flagnames = array('lyrics', 'timestamps', 'inhibitrandom'); |
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191 | foreach ($flagnames as $flagname) { |
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192 | if (strlen($ParsedLyrics3['raw']['IND']) > $i++) { |
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193 | $ParsedLyrics3['flags'][$flagname] = $this->IntString2Bool(substr($ParsedLyrics3['raw']['IND'], $i, 1 - 1)); |
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194 | } |
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195 | } |
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196 | } |
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197 | |
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198 | $fieldnametranslation = array('ETT'=>'title', 'EAR'=>'artist', 'EAL'=>'album', 'INF'=>'comment', 'AUT'=>'author'); |
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199 | foreach ($fieldnametranslation as $key => $value) { |
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200 | if (isset($ParsedLyrics3['raw'][$key])) { |
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201 | $ParsedLyrics3['comments'][$value][] = trim($ParsedLyrics3['raw'][$key]); |
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202 | } |
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203 | } |
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204 | |
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205 | if (isset($ParsedLyrics3['raw']['IMG'])) { |
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206 | $imagestrings = explode("\r\n", $ParsedLyrics3['raw']['IMG']); |
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207 | foreach ($imagestrings as $key => $imagestring) { |
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208 | if (strpos($imagestring, '||') !== false) { |
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209 | $imagearray = explode('||', $imagestring); |
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210 | $ParsedLyrics3['images'][$key]['filename'] = (isset($imagearray[0]) ? $imagearray[0] : ''); |
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211 | $ParsedLyrics3['images'][$key]['description'] = (isset($imagearray[1]) ? $imagearray[1] : ''); |
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212 | $ParsedLyrics3['images'][$key]['timestamp'] = $this->Lyrics3Timestamp2Seconds(isset($imagearray[2]) ? $imagearray[2] : ''); |
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213 | } |
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214 | } |
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215 | } |
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216 | if (isset($ParsedLyrics3['raw']['LYR'])) { |
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217 | $this->Lyrics3LyricsTimestampParse($ParsedLyrics3); |
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218 | } |
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219 | } else { |
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220 | $info['error'][] = '"LYRICS200" expected at '.(ftell($this->getid3->fp) - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead'; |
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221 | return false; |
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222 | } |
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223 | break; |
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224 | |
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225 | default: |
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226 | $info['error'][] = 'Cannot process Lyrics3 version '.$version.' (only v1 and v2)'; |
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227 | return false; |
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228 | break; |
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229 | } |
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230 | |
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231 | |
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232 | if (isset($info['id3v1']['tag_offset_start']) && ($info['id3v1']['tag_offset_start'] <= $ParsedLyrics3['tag_offset_end'])) { |
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233 | $info['warning'][] = 'ID3v1 tag information ignored since it appears to be a false synch in Lyrics3 tag data'; |
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234 | unset($info['id3v1']); |
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235 | foreach ($info['warning'] as $key => $value) { |
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236 | if ($value == 'Some ID3v1 fields do not use NULL characters for padding') { |
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237 | unset($info['warning'][$key]); |
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238 | sort($info['warning']); |
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239 | break; |
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240 | } |
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241 | } |
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242 | } |
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243 | |
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244 | $info['lyrics3'] = $ParsedLyrics3; |
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245 | |
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246 | return true; |
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247 | } |
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248 | |
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249 | public function Lyrics3Timestamp2Seconds($rawtimestamp) { |
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250 | if (preg_match('#^\\[([0-9]{2}):([0-9]{2})\\]$#', $rawtimestamp, $regs)) { |
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251 | return (int) (($regs[1] * 60) + $regs[2]); |
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252 | } |
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253 | return false; |
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254 | } |
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255 | |
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256 | public function Lyrics3LyricsTimestampParse(&$Lyrics3data) { |
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257 | $lyricsarray = explode("\r\n", $Lyrics3data['raw']['LYR']); |
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258 | foreach ($lyricsarray as $key => $lyricline) { |
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259 | $regs = array(); |
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260 | unset($thislinetimestamps); |
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261 | while (preg_match('#^(\\[[0-9]{2}:[0-9]{2}\\])#', $lyricline, $regs)) { |
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262 | $thislinetimestamps[] = $this->Lyrics3Timestamp2Seconds($regs[0]); |
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263 | $lyricline = str_replace($regs[0], '', $lyricline); |
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264 | } |
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265 | $notimestamplyricsarray[$key] = $lyricline; |
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266 | if (isset($thislinetimestamps) && is_array($thislinetimestamps)) { |
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267 | sort($thislinetimestamps); |
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268 | foreach ($thislinetimestamps as $timestampkey => $timestamp) { |
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269 | if (isset($Lyrics3data['synchedlyrics'][$timestamp])) { |
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270 | // timestamps only have a 1-second resolution, it's possible that multiple lines |
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271 | // could have the same timestamp, if so, append |
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272 | $Lyrics3data['synchedlyrics'][$timestamp] .= "\r\n".$lyricline; |
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273 | } else { |
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274 | $Lyrics3data['synchedlyrics'][$timestamp] = $lyricline; |
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275 | } |
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276 | } |
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277 | } |
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278 | } |
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279 | $Lyrics3data['unsynchedlyrics'] = implode("\r\n", $notimestamplyricsarray); |
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280 | if (isset($Lyrics3data['synchedlyrics']) && is_array($Lyrics3data['synchedlyrics'])) { |
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281 | ksort($Lyrics3data['synchedlyrics']); |
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282 | } |
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283 | return true; |
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284 | } |
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285 | |
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286 | public function IntString2Bool($char) { |
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287 | if ($char == '1') { |
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288 | return true; |
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289 | } elseif ($char == '0') { |
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290 | return false; |
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291 | } |
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292 | return null; |
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293 | } |
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294 | } |
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