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1 % ---
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2 % This is the wrapper and loader class for magnatagatune db
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3 % and related data
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4 % ---
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5
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6 classdef MTTClipDB < handle
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7
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8 properties (SetAccess = 'private')
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9
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10 % ---
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11 % TODO: create global "db_magnaclips" class pointer
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12 % ---
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13
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14 annots;
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15 annots_filenames;
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16 annots_ids;
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17 annots_names;
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18
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19 % inverse ids for comparison
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20 comparison_ids;
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21
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22 clip_info_proper;
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23 clip_info_proper_names;
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24
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25 % magnagenre_childof;
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26
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27 % genre database
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28 genredb;
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29
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30 % artist database
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31 artistdb;
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32
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33 % tag databses
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34 tagdb;
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35
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36 fmtagdb;
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37
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38 % @todo: get data
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39 mbtagdb;
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40 end
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41
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42 properties (Hidden)
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43 % hidden properties
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44
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45 end
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46
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47 methods
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48
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49 % ---
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50 % constructore
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51 % ---
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52 function db = MTTClipDB()
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53
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54 % ---
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55 % TODO: restructure data / db.mat
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56 % ---
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57
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58 load 'db.mat';
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59
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60 db.annots = annots;
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61 db.annots_ids = annots_ids;
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62 db.annots_names = annots_names;
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63 db.annots_filenames = annots_filenames;
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64
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65 % comparison ids
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66 db.comparison_ids = sparse(comparison_ids,1, 1:numel(comparison_ids));
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67
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68 db.clip_info_proper = clip_info_proper;
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69 db.clip_info_proper_names = clip_info_proper_names;
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70
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71 % Genre in new structure for textual annotations
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72 db.genredb = AnnotDB(magnagenres, clip_magnagenres, annots_ids);
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73
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74 % Artist for each clip
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75 db.artistdb = artistdb; %AnnotDB('clips_by_annot', db.clip_info_proper(:, 4), annots_ids);
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76
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77 % Magnatagatune Tags
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78 db.tagdb = tagdb; % AnnotDB(annots_names, annots, annots_ids);
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79
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80 % Last Fm Tags
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81 db.fmtagdb = fmtagdb; % LFMTagsDB(db.artistdb);
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82
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83 % musicbrainz tags
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84 db.mbtagdb = mbtagdb; % LFMTagsDB(db.artistdb);
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85
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86 % db.clip_magnagenres = clip_magnagenres;
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87 % db.magnagenres = magnagenres;
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88 % db.magnagenre_childof = magnagenre_childof;
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89
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90 end
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91
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92 % ---
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93 % member functions
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94 % ---
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95 function out = genres(db)
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96 % returns the magnatune genre list
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97
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98 out = db.genredb.lexicon;
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99 end
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100
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101 function clips = clips_by_genre_name(db, name)
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102 % returns all clips having the assigned genre
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103
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104 clips = MTTClip( db.genredb.owner( name));
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105 end
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106
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107 function out = tags(db)
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108 % returns the magnatune artist list
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109
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110 out = db.tagdb.lexicon;
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111 end
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112
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113
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114 function out = artists(db)
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115 % returns the magnatune artist list
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116
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117 out = db.artistdb.lexicon;
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118 end
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119
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120 function clips = clips_by_artist_name(db, name)
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121 % returns all clips having the assigned artist
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122
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123 clips = MTTClip( db.artistdb.owner( name));
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124 end
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125 end
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126
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127 % ---
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128 % Hidden Methods
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129 % ---
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130 methods (Hidden = true, Access = private)
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131
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132 function out = clips_by_genre(db, genre_id)
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133 % returns clip ids given a genre id
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134
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135 pos = (db.clip_magnagenres(:,genre_id) == 1);
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136
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137 % return clip ids, not pos
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138 out = db.annots_ids(pos);
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139 end
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140 end
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141 end |
