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", $genre));
136 if(exists($self->{mp3tag}->{ID3v1}))
139 my $artist=$self->{mp3tag}->{ID3v1}->artist();
140 $del=0 if($artist && $artist =~ /\S+/);
141 my $album=$self->{mp3tag}->{ID3v1}->album();
142 $del=0 if($album && $album =~ /\S+/);
143 my $track=$self->{mp3tag}->{ID3v1}->title();
144 $del=0 if($track && $track =~ /\S+/);
145 my $tracknum=$self->{mp3tag}->{ID3v1}->track();
146 $del=0 if($tracknum && $tracknum !~ /^0+$/);
147 my $genre=$self->{mp3tag}->{ID3v1}->genre();
148 $del=0 if($genre && $genre =~ /\S+/);
149 my $comment=$self->{mp3tag}->{ID3v1}->comment();
150 $del=0 if($comment && $comment =~ /\S+/);
151 my $year=$self->{mp3tag}->{ID3v1}->year();
152 $del=0 if($year && $year =~ /\S+/ && $year !~ /^0+$/);
155 $self->{mp3tag}->{ID3v1}->remove_tag;
159 $self->{mp3tag}->{ID3v1}->remove_tag;
162 if(exists($self->{mp3tag}->{ID3v2}))
164 my $frames=$self->{mp3tag}->{ID3v2}->get_frame_ids();
165 if($frames && scalar(keys(%$frames)))
167 $self->{mp3tag}->{ID3v2}->write_tag;
171 $self->{mp3tag}->{ID3v2}->remove_tag;
176 sub delete_artist { shift->delete("artist"); }
177 sub delete_album { shift->delete("album"); }
178 sub delete_track { shift->delete("song"); }
179 sub delete_tracknum { shift->delete("track"); }
180 sub delete_year { shift->delete("year"); }
181 sub delete_v1genre { shift->delete("v1genre"); }
182 sub delete_comment { shift->delete("comment"); }
183 sub delete_genre { shift->delete("genre"); }
188 my $current=$self->tags();
189 my @current=split(/\s*,\s*/, $current);
194 delete($hash{$tag}) if(exists($hash{$tag}));
196 my @tagsout=sort keys(%hash);
197 my $genre=join(', ', @tagsout);
200 return($self->set("genre", $genre));
204 return($self->delete_genre());
211 if(exists($self->{mp3tag}->{ID3v1}))
213 $self->{mp3tag}->{ID3v1}->remove_tag;
215 if(exists($self->{mp3tag}->{ID3v2}))
217 $self->{mp3tag}->{ID3v2}->remove_tag;
223 my($self, $thing)=@_;
225 if(exists($self->{mp3tag}->{ID3v1}) && $thing ne "genre")
228 $action="genre" if($action eq "v1genre");
229 if($action eq "track")
231 $self->{mp3tag}->{ID3v1}->track("00");
235 $self->{mp3tag}->{ID3v1}->$action(" ");
239 if(exists($self->{mp3tag}->{ID3v2}))
241 if($thing eq "artist")
243 $self->{mp3tag}->{ID3v2}->remove_frame("TPE1");
244 $self->{mp3tag}->{ID3v2}->remove_frame("TPE2");
246 elsif($thing eq "album")
248 $self->{mp3tag}->{ID3v2}->remove_frame("TALB");
250 elsif($thing eq "song")
252 $self->{mp3tag}->{ID3v2}->remove_frame("TIT2");
254 elsif($thing eq "track")
256 $self->{mp3tag}->{ID3v2}->remove_frame("TRCK");
258 elsif($thing eq "year")
260 $self->{mp3tag}->{ID3v2}->remove_frame("TYER");
261 $self->{mp3tag}->{ID3v2}->remove_frame("TDRC");
263 elsif($thing eq "comment")
265 $self->{mp3tag}->{ID3v2}->remove_frame("COMM");
267 elsif($thing eq "genre")
269 $self->{mp3tag}->{ID3v2}->remove_frame("TCON");
276 my ($self, @things)=@_;
279 return(sort keys(%hash));
286 return undef unless($self->{mp3info});
287 return( ($self->{mp3info}->stereo()) ? 2 : 1 );
293 return undef unless($self->{mp3info});
294 return( int($self->{mp3info}->bitrate()) );
300 return undef unless($self->{mp3info});
301 return(int($self->{mp3info}->frequency() * 1000));