| 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.audio.mod.php // |
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| 11 | // module for analyzing MOD Audio files // |
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| 12 | // dependencies: NONE // |
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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_mod |
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| 18 | { |
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| 19 | |
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| 20 | // new combined constructor |
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| 21 | function getid3_mod(&$fd, &$ThisFileInfo, $option) { |
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| 22 | |
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| 23 | if ($option === 'mod') { |
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| 24 | $this->getMODheaderFilepointer($fd, $ThisFileInfo); |
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| 25 | } |
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| 26 | elseif ($option === 'xm') { |
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| 27 | $this->getXMheaderFilepointer($fd, $ThisFileInfo); |
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| 28 | } |
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| 29 | elseif ($option === 'it') { |
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| 30 | $this->getITheaderFilepointer($fd, $ThisFileInfo); |
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| 31 | } |
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| 32 | elseif ($option === 's3m') { |
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| 33 | $this->getS3MheaderFilepointer($fd, $ThisFileInfo); |
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| 34 | } |
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| 35 | } |
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| 36 | |
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| 37 | |
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| 38 | function getMODheaderFilepointer(&$fd, &$ThisFileInfo) { |
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| 39 | |
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| 40 | fseek($fd, $ThisFileInfo['avdataoffset'] + 1080); |
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| 41 | $FormatID = fread($fd, 4); |
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| 42 | if (!ereg('^(M.K.|[5-9]CHN|[1-3][0-9]CH)$', $FormatID)) { |
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| 43 | $ThisFileInfo['error'][] = 'This is not a known type of MOD file'; |
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| 44 | return false; |
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| 45 | } |
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| 46 | |
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| 47 | $ThisFileInfo['fileformat'] = 'mod'; |
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| 48 | |
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| 49 | $ThisFileInfo['error'][] = 'MOD parsing not enabled in this version of getID3()'; |
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| 50 | return false; |
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| 51 | } |
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| 52 | |
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| 53 | function getXMheaderFilepointer(&$fd, &$ThisFileInfo) { |
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| 54 | |
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| 55 | fseek($fd, $ThisFileInfo['avdataoffset']); |
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| 56 | $FormatID = fread($fd, 15); |
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| 57 | if (!ereg('^Extended Module$', $FormatID)) { |
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| 58 | $ThisFileInfo['error'][] = 'This is not a known type of XM-MOD file'; |
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| 59 | return false; |
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| 60 | } |
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| 61 | |
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| 62 | $ThisFileInfo['fileformat'] = 'xm'; |
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| 63 | |
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| 64 | $ThisFileInfo['error'][] = 'XM-MOD parsing not enabled in this version of getID3()'; |
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| 65 | return false; |
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| 66 | } |
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| 67 | |
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| 68 | function getS3MheaderFilepointer(&$fd, &$ThisFileInfo) { |
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| 69 | |
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| 70 | fseek($fd, $ThisFileInfo['avdataoffset'] + 44); |
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| 71 | $FormatID = fread($fd, 4); |
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| 72 | if (!ereg('^SCRM$', $FormatID)) { |
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| 73 | $ThisFileInfo['error'][] = 'This is not a ScreamTracker MOD file'; |
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| 74 | return false; |
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| 75 | } |
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| 76 | |
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| 77 | $ThisFileInfo['fileformat'] = 's3m'; |
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| 78 | |
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| 79 | $ThisFileInfo['error'][] = 'ScreamTracker parsing not enabled in this version of getID3()'; |
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| 80 | return false; |
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| 81 | } |
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| 82 | |
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| 83 | function getITheaderFilepointer(&$fd, &$ThisFileInfo) { |
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| 84 | |
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| 85 | fseek($fd, $ThisFileInfo['avdataoffset']); |
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| 86 | $FormatID = fread($fd, 4); |
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| 87 | if (!ereg('^IMPM$', $FormatID)) { |
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| 88 | $ThisFileInfo['error'][] = 'This is not an ImpulseTracker MOD file'; |
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| 89 | return false; |
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| 90 | } |
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| 91 | |
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| 92 | $ThisFileInfo['fileformat'] = 'it'; |
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| 93 | |
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| 94 | $ThisFileInfo['error'][] = 'ImpulseTracker parsing not enabled in this version of getID3()'; |
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| 95 | return false; |
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| 96 | } |
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| 97 | |
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| 98 | } |
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| 99 | |
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| 100 | |
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| 101 | ?> |
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