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<?php |
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/** |
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* Class ID3v1 |
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* |
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* @created 26.09.2018 |
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* @author smiley <[email protected]> |
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* @copyright 2018 smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\ID3Tag; |
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use function array_keys, array_map, array_values, call_user_func_array, date, intval, method_exists, strlen, substr, trim, unpack; |
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/** |
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* @link http://id3.org/ID3v1 |
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* @link http://www.birdcagesoft.com/ID3v12.txt |
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*/ |
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final class ID3v1 implements ParserInterface{ |
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/** |
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* Genre definitions 0-79 follow the ID3 tag specification of 1999 |
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* and the first set of Winamp extensions (80-125) |
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*/ |
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public const GENRES = [ |
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0 => 'Blues', // starting at 0 was the stupidest thing to do... |
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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 => 'Alternative 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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80
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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', |
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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 US', |
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65 => 'Cabaret', |
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66 => 'New Wave', |
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67 => 'Psychadelic', |
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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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// Winamp extensions |
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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 => 'Acapella', |
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124 => 'Euro-House', |
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125 => 'Dance Hall', |
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]; |
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/** |
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* @inheritDoc |
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*/ |
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public function parse(string $rawdata):?array{ |
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if(strlen($rawdata) !== 256){ |
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# throw new ID3Exception('invalid id3v1 tag size'); |
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return null; |
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} |
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$tagdata = substr($rawdata, 128); |
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# $extdata = substr($rawdata, 0, 128); // @todo v1.2 |
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$format = $tagdata[125] === "\x00" && $tagdata[126] !== "\x00" |
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? 'a28comment/a1null/c1track/c1genre' // v1.1 |
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: 'a30comment/c1genre'; // v1.0 |
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$data = unpack('a3identifier/a30title/a30artist/a30album/a4year/'.$format, $tagdata); |
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if($data['identifier'] !== 'TAG'){ |
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# throw new ID3Exception('invalid id3v1 identifier'); |
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return null; |
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} |
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unset($data['identifier'], $data['null']); |
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return array_map([$this, 'parseFrame'], array_keys($data), array_values($data)); |
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} |
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/** |
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* @param string $tag |
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* @param mixed $content |
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* |
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* @return array |
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*/ |
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protected function parseFrame(string $tag, $content):array{ |
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if(method_exists($this, $tag)){ |
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return call_user_func_array([$this, $tag], [$tag, $content]); |
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} |
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// Detecting UTF-8 before ISO-8859-1 will cause ASCII strings being tagged as UTF-8, which is fine. |
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// However, it will prevent UTF-8 encoded strings from being wrongly decoded twice. |
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$encoding = mb_detect_encoding($content, ['Windows-1251', 'Windows-1252', 'KOI8-R', 'UTF-8', 'ISO-8859-1']); |
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if($encoding !== 'UTF-8'){ |
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$content = mb_convert_encoding($content, 'UTF-8', $encoding); |
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} |
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return [ |
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'tag' => $tag, |
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'content' => trim($content), |
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'encoding' => $encoding, |
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]; |
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} |
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/** |
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* @param string $tag |
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* @param mixed $content |
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* |
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* @return array |
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*/ |
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protected function year(string $tag, $content):array{ |
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$content = intval(trim($content)); |
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return [ |
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'tag' => $tag, |
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'content' => $content <= date('Y') && $content > 0 ? $content : null, |
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]; |
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} |
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/** |
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* |
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*/ |
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protected function genre(string $tag, int $content):array{ |
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return [ |
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'tag' => $tag, |
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'content' => $content, // there's no sane way to tell whether a genre was actually set |
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'desc' => $this::GENRES[$content] ?? null, |
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]; |
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} |
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/** |
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* |
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*/ |
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protected function track(string $tag, int $content):array{ |
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return [ |
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'tag' => $tag, |
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'content' => $content, |
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]; |
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} |
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} |
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chillerlan /
php-id3tag
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