1 | ###########################################################################
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2 | #
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3 | # MusicIRPlugin.pm -- for augmenting audio/midi files with Music IR
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4 | # features and tags
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5 | # A component of the Greenstone digital library software
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6 | # from the New Zealand Digital Library Project at the
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7 | # University of Waikato, New Zealand.
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8 | #
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9 | # Copyright (C) 1999 New Zealand Digital Library Project
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10 | #
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11 | # This program is free software; you can redistribute it and/or modify
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12 | # it under the terms of the GNU General Public License as published by
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13 | # the Free Software Foundation; either version 2 of the License, or
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14 | # (at your option) any later version.
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15 | #
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16 | # This program is distributed in the hope that it will be useful,
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17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 | # GNU General Public License for more details.
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20 | #
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21 | # You should have received a copy of the GNU General Public License
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22 | # along with this program; if not, write to the Free Software
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23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 | #
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25 | ###########################################################################
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26 |
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27 | package MusicIRPlugin;
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28 |
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29 | use BaseImporter;
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30 | use jAudioExtractor;
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31 | use jSongMinerExtractor;
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32 | use pEssentiaExtractor;
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33 |
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34 | use strict;
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35 | no strict 'refs'; # allow filehandles to be variables and viceversa
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36 | no strict 'subs';
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37 |
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38 | use gsprintf 'gsprintf';
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39 |
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40 | sub BEGIN {
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41 | @MusicIRPlugin::ISA = ('BaseImporter', 'jAudioExtractor', 'jSongMinerExtractor', 'pEssentiaExtractor');
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42 | }
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43 |
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44 | my $arguments =
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45 | [
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46 | { 'name' => "compute_mir_features",
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47 | 'desc' => "{BaseImporter.compute_mir_features}",
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48 | 'type' => "enum",
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49 | 'list' => [{'name' => "true", 'desc' => "{common.true}"},
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50 | {'name' => "false", 'desc' => "{common.false}"}],
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51 | 'deft' => "false",
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52 | 'reqd' => "no" },
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53 | { 'name' => "compute_essentia_features",
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54 | 'desc' => "{BaseImporter.compute_essentia_features}",
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55 | 'type' => "enum",
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56 | 'list' => [{'name' => "true", 'desc' => "{common.true}"},
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57 | {'name' => "false", 'desc' => "{common.false}"}],
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58 | 'deft' => "false",
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59 | 'reqd' => "no" },
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60 | { 'name' => "retrieve_mir_metadata",
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61 | 'desc' => "{BaseImporter.retrieve_mir_metadata}",
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62 | 'type' => "enum",
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63 | 'list' => [{'name' => "true", 'desc' => "{common.true}"},
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64 | {'name' => "false", 'desc' => "{common.false}"}],
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65 | 'deft' => "false",
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66 | 'reqd' => "no" },
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67 | { 'name' => "process_exp",
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68 | 'desc' => "{BaseImporter.process_exp}",
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69 | 'type' => "regexp",
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70 | 'deft' => &get_default_process_exp(),
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71 | 'reqd' => "no" }
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72 | ];
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73 |
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74 | my $options = { 'name' => "MusicIRPlugin",
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75 | 'desc' => "{MusicIRPlugin.desc}",
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76 | 'abstract' => "no",
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77 | 'inherits' => "yes",
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78 | 'args' => $arguments };
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79 |
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80 |
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81 |
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82 | sub new {
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83 | my ($class) = shift (@_);
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84 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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85 | push(@$pluginlist, $class);
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86 |
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87 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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88 | push(@{$hashArgOptLists->{"OptList"}},$options);
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89 |
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90 |
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91 | my $jae_self = new jAudioExtractor($pluginlist, $inputargs, $hashArgOptLists,1);
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92 | my $jsme_self = new jSongMinerExtractor($pluginlist, $inputargs, $hashArgOptLists,1);
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93 | my $pee_self = new pEssentiaExtractor($pluginlist, $inputargs, $hashArgOptLists,1);
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94 |
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95 | my $base_self = new BaseImporter($pluginlist, $inputargs, $hashArgOptLists);
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96 |
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97 | my $self = BaseImporter::merge_inheritance($jae_self,$jsme_self,$base_self);
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98 |
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99 | return bless $self, $class;
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100 | }
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101 |
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102 | sub get_default_process_exp {
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103 | my $self = shift (@_);
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104 |
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105 | return q^(?i)(\.mp3|\.wave?|\.aif[fc]?|\.au|\.snd|\.og[ga]|\.m4a)$^;
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106 | }
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107 |
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108 | sub begin {
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109 | my $self = shift (@_);
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110 | my ($pluginfo, $base_dir, $processor, $maxdocs) = @_;
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111 |
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112 | $self->SUPER::begin(@_);
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113 | $self->jAudioExtractor::begin(@_);
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114 | $self->jSongMinerExtractor::begin(@_);
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115 | $self->pEssentiaExtractor::begin(@_);
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116 | }
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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 | sub process_features {
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122 | my $self = shift (@_);
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123 | my ($base_dir, $file, $doc_obj) = @_;
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124 |
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125 | my $outhandle = $self->{'outhandle'};
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126 | my ($filename_full_path, $filename_no_path) = &util::get_full_filenames($base_dir, $file);
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127 |
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128 | my $top_section = $doc_obj->get_top_section();
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129 |
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130 | if ($self->{'compute_mir_features'} eq "true")
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131 | {
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132 | my $utf8_filename_no_path = $self->filepath_to_utf8($filename_no_path);
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133 | my $url_encoded_filename = &util::rename_file($utf8_filename_no_path, $self->{'file_rename_method'});
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134 |
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135 | my $features_filename = $self->compute_features($filename_full_path);
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136 | my ($features_ext) = ($features_filename =~ m/\.([^.]+)$/);
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137 |
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138 |
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139 | my $mime_type = ($features_ext eq "arff") ? "text/plain" : "text/xml";
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140 | $doc_obj->associate_file($features_filename, "jaudio.$features_ext",
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141 | $mime_type, $top_section);
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142 |
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143 | }
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144 |
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145 | if ($self->{'compute_essentia_features'} eq "true")
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146 | {
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147 | my $utf8_filename_no_path = $self->filepath_to_utf8($filename_no_path);
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148 | my $url_encoded_filename = &util::rename_file($utf8_filename_no_path, $self->{'file_rename_method'});
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149 |
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150 | my $features_filename = $self->compute_essentia_features($filename_full_path);
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151 | my ($features_ext) = ($features_filename =~ m/\.([^.]+)$/);
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152 |
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153 |
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154 | my $mime_type = ($features_ext eq "json") ? "application/json" : "text/plain";
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155 | $doc_obj->associate_file($features_filename, "pessentia.$features_ext",
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156 | $mime_type, $top_section);
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157 |
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158 | }
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159 |
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160 | }
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161 |
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162 | # do plugin specific processing of doc_obj
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163 | sub process {
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164 | my $self = shift (@_);
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165 | my ($pluginfo, $base_dir, $file, $metadata, $doc_obj, $gli) = @_;
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166 |
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167 | my $top_section = $doc_obj->get_top_section();
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168 |
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169 | $self->process_features($base_dir,$file,$doc_obj);
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170 |
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171 | #we have no text - adds dummy text and NoText metadata
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172 | $self->add_dummy_text($doc_obj, $doc_obj->get_top_section());
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173 |
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174 | my ($filename_full_path, $filename_no_path) = &util::get_full_filenames($base_dir, $file);
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175 | $doc_obj->associate_file($filename_full_path, "audio.mp3", "audio/mpeg", $top_section);
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176 |
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177 | return 1;
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178 |
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179 | }
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180 |
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181 | sub post_process_doc_obj {
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182 | my $self = shift (@_);
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183 | my ($pluginfo, $base_dir, $file, $metadata, $doc_obj, $gli) = @_;
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184 |
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185 | my $outhandle = $self->{'outhandle'};
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186 | my ($filename_full_path, $filename_no_path) = &util::get_full_filenames($base_dir, $file);
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187 |
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188 | if ($self->{'retrieve_mir_metadata'} eq "true") {
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189 | my $top_section = $doc_obj->get_top_section();
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190 |
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191 | my $id3_titles = $doc_obj->get_metadata($top_section,"ex.ID3.Title");
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192 | # my $id3_title = shift @$id3_titles || "Unknown";
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193 | my $id3_title = shift @$id3_titles || undef;
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194 |
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195 | my $id3_artists = $doc_obj->get_metadata($top_section,"ex.ID3.Artist");
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196 | # my $id3_artist = shift @$id3_artists || "Unknown";
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197 | my $id3_artist = shift @$id3_artists || undef;
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198 |
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199 | my ($metadata_acexml_filename,$metadata_txt_filename)
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200 | = $self->retrieve_metadata($filename_full_path,$id3_title,$id3_artist);
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201 |
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202 | if (-e $metadata_txt_filename) {
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203 | $self->parse_txt_metadata($doc_obj,$metadata_txt_filename);
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204 | }
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205 |
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206 | ### $self->check_for_existing_id3_genre($doc_obj);
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207 |
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208 | $doc_obj->associate_file($metadata_acexml_filename, "jsongminer.xml",
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209 | "text/xml", $top_section);
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210 | }
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211 |
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212 |
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213 | return 1;
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214 | }
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215 |
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216 |
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217 | 1;
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218 |
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219 |
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220 |
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