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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