1 # id3fs - a FUSE-based filesystem for browsing audio metadata
2 # Copyright (C) 2010 Ian Beckwith <ianb@erislabs.net>
4 # This program is free software: you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation, either version 3 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 package ID3FS::AudioFile::Mp3;
27 my $class=ref($proto) || $proto;
32 $self->{mp3tag}=MP3::Tag->new($self->{path});
33 $self->{mp3info}=MP3::Info->new($self->{path});
42 my ($self, $func, $value)=@_;
43 return $self->choose($func) unless($value);
44 unless(exists($self->{mp3tag}->{ID3v1}))
46 $self->{mp3tag}->new_tag("ID3v1");
48 unless(exists($self->{mp3tag}->{ID3v2}))
50 $self->{mp3tag}->new_tag("ID3v2");
52 my $method=$func . "_set";
53 $self->{mp3tag}->$method($value, 1);
61 if(exists($self->{mp3tag}->{ID3v2}))
63 $thing=$self->{mp3tag}->{ID3v2}->$func();
65 if(exists($self->{mp3tag}->{ID3v1}) && (!defined($thing) || !length($thing)))
67 $thing=$self->{mp3tag}->{ID3v1}->$func();
72 sub year { return(shift->set("year", @_)); }
73 sub artist { return(shift->set("artist", @_)); }
74 sub album { return(shift->set("album", @_)); }
75 sub track { return(shift->set("title", @_)); }
76 sub tracknum { return(shift->set("track", @_)); }
77 sub comment { return(shift->set("comment", @_)); }
79 sub audiotype { return "mp3"; }
80 sub haspic { return undef; } # NEXTVERSION
87 $self->{mp3tag}->new_tag("ID3v1") unless(defined($self->{mp3tag}->{ID3v1}));
88 $self->{mp3tag}->{ID3v1}->genre($val);
92 $genre=$self->{ID3v1}->genre() if(defined($self->{ID3v1}));
99 return() unless(exists($self->{mp3tag}->{ID3v2}) && defined($self->{mp3tag}->{ID3v2}));
100 return($self->{mp3tag}->{ID3v2}->genre());
106 # MP3::Tag->get_tags shows cryptic debug info via print when it finds
107 # an unhandled id3v2 version, in addition to the warning, so use
108 # select to send prints to /dev/null
110 if(open(NULL,">/dev/null"))
112 $oldout=select(NULL);
114 eval { $self->{mp3tag}->get_tags; };
115 warn("$self->{path}: $@\n") if($@);
126 my $existing=$self->tags();
127 my @existing=split(/\s*,\s*/, $existing) if($existing);
128 my @merged=$self->uniq(@tags, @existing);
129 my $genre=join(', ', @merged);
130 return($self->set("genre", $genre));
136 $self->{mp3tag}->update_tags();
139 sub delete_artist { shift->delete("artist"); }
140 sub delete_album { shift->delete("album"); }
141 sub delete_track { shift->delete("song"); }
142 sub delete_tracknum { shift->delete("track"); }
143 sub delete_year { shift->delete("year"); }
144 sub delete_v1genre { shift->delete("v1genre"); }
145 sub delete_comment { shift->delete("comment"); }
146 sub delete_genre { shift->delete("genre"); }
151 my $current=$self->tags();
152 my @current=split(/\s*,\s*/, $current);
157 delete($hash{$tag}) if(exists($hash{$tag}));
159 my @tagsout=sort keys(%hash);
160 my $genre=join(', ', @tagsout);
163 return($self->set("genre", $genre));
167 return($self->delete_genre());
174 if(exists($self->{mp3tag}->{ID3v1}))
176 $self->{mp3tag}->{ID3v1}->remove_tag;
178 if(exists($self->{mp3tag}->{ID3v2}))
180 $self->{mp3tag}->{ID3v2}->remove_tag;
186 my($self, $thing)=@_;
188 if(exists($self->{mp3tag}->{ID3v1}) && $thing ne "genre")
191 $action="genre" if($action eq "v1genre");
192 if($action eq "track")
194 $self->{mp3tag}->{ID3v1}->track("00");
198 $self->{mp3tag}->{ID3v1}->$action(" ");
202 if(exists($self->{mp3tag}->{ID3v2}))
204 print "2: remove: $thing\n";
205 if($thing eq "artist")
207 $self->{mp3tag}->{ID3v2}->remove_frame("TPE1");
208 $self->{mp3tag}->{ID3v2}->remove_frame("TPE2");
210 elsif($thing eq "album")
212 $self->{mp3tag}->{ID3v2}->remove_frame("TALB");
214 elsif($thing eq "song")
216 $self->{mp3tag}->{ID3v2}->remove_frame("TIT2");
218 elsif($thing eq "track")
220 $self->{mp3tag}->{ID3v2}->remove_frame("TRCK");
222 elsif($thing eq "year")
224 $self->{mp3tag}->{ID3v2}->remove_frame("TYER");
225 $self->{mp3tag}->{ID3v2}->remove_frame("TDRC");
227 elsif($thing eq "comment")
229 $self->{mp3tag}->{ID3v2}->remove_frame("COMM");
231 elsif($thing eq "genre")
233 $self->{mp3tag}->{ID3v2}->remove_frame("TCON");
240 my ($self, @things)=@_;
243 return(sort keys(%hash));
250 return undef unless($self->{mp3info});
251 return( ($self->{mp3info}->stereo()) ? 2 : 1 );
257 return undef unless($self->{mp3info});
258 return( int($self->{mp3info}->bitrate()) );
264 return undef unless($self->{mp3info});
265 return(int($self->{mp3info}->frequency() * 1000));