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}->$func();
72 sub year { return(shift->set("year", @_)); }
73 sub artist { return(shift->set("artist", @_)); }
74 sub album { return(shift->set("album", @_)); }
75 sub track { return(shift->set("title", @_)); }
76 sub tracknum { return(shift->set("track", @_)); }
77 sub comment { return(shift->set("comment", @_)); }
79 sub audiotype { return "mp3"; }
80 sub haspic { return undef; } # NEXTVERSION
82 # we only set v2 genre
85 my ($self, $value)=@_;
88 if(exists($self->{mp3tag}->{ID3v2}))
90 $self->{mp3tag}->{ID3v2}->remove_frame("TCON");
94 $self->{mp3tag}->new_tag("ID3v2");
96 $self->{mp3tag}->{ID3v2}->add_frame("TCON", $value);
99 return($self->{mp3tag}->{ID3v2}->genre());
107 $self->{mp3tag}->new_tag("ID3v1") unless(defined($self->{mp3tag}->{ID3v1}));
108 $self->{mp3tag}->{ID3v1}->genre($val);
112 $genre=$self->{ID3v1}->genre() if(defined($self->{ID3v1}));
119 return() unless(exists($self->{mp3tag}->{ID3v2}) && defined($self->{mp3tag}->{ID3v2}));
120 return($self->{mp3tag}->{ID3v2}->genre());
126 # MP3::Tag->get_tags shows cryptic debug info via print when it finds
127 # an unhandled id3v2 version, in addition to the warning, so use
128 # select to send prints to /dev/null
130 if(open(NULL,">/dev/null"))
132 $oldout=select(NULL);
134 eval { $self->{mp3tag}->get_tags; };
135 warn("$self->{path}: $@\n") if($@);
146 my $existing=$self->tags();
147 my @existing=split(/\s*,\s*/, $existing) if($existing);
148 my @merged=$self->uniq(@tags, @existing);
149 my $genre=join(', ', @merged);
150 return($self->set("genre", $genre));
156 if(exists($self->{mp3tag}->{ID3v1}))
159 my $artist=$self->{mp3tag}->{ID3v1}->artist();
160 $del=0 if($artist && $artist =~ /\S+/);
161 my $album=$self->{mp3tag}->{ID3v1}->album();
162 $del=0 if($album && $album =~ /\S+/);
163 my $track=$self->{mp3tag}->{ID3v1}->title();
164 $del=0 if($track && $track =~ /\S+/);
165 my $tracknum=$self->{mp3tag}->{ID3v1}->track();
166 $del=0 if($tracknum && $tracknum !~ /^0+$/);
167 my $genre=$self->{mp3tag}->{ID3v1}->genre();
168 $del=0 if($genre && $genre =~ /\S+/);
169 my $comment=$self->{mp3tag}->{ID3v1}->comment();
170 $del=0 if($comment && $comment =~ /\S+/);
171 my $year=$self->{mp3tag}->{ID3v1}->year();
172 $del=0 if($year && $year =~ /\S+/ && $year !~ /^0+$/);
175 $self->{mp3tag}->{ID3v1}->remove_tag;
179 $self->{mp3tag}->{ID3v1}->write_tag;
182 if(exists($self->{mp3tag}->{ID3v2}))
184 my $frames=$self->{mp3tag}->{ID3v2}->get_frame_ids();
185 if($frames && scalar(keys(%$frames)))
187 $self->{mp3tag}->{ID3v2}->write_tag;
191 $self->{mp3tag}->{ID3v2}->remove_tag;
196 sub delete_artist { shift->delete("artist"); }
197 sub delete_album { shift->delete("album"); }
198 sub delete_track { shift->delete("song"); }
199 sub delete_tracknum { shift->delete("track"); }
200 sub delete_year { shift->delete("year"); }
201 sub delete_v1genre { shift->delete("v1genre"); }
202 sub delete_comment { shift->delete("comment"); }
203 sub delete_genre { shift->delete("genre"); }
208 my $current=$self->tags();
209 my @current=split(/\s*,\s*/, $current);
214 delete($hash{$tag}) if(exists($hash{$tag}));
216 my @tagsout=sort keys(%hash);
217 my $genre=join(', ', @tagsout);
220 return($self->set("genre", $genre));
224 return($self->delete_genre());
231 if(exists($self->{mp3tag}->{ID3v1}))
233 $self->{mp3tag}->{ID3v1}->remove_tag;
235 if(exists($self->{mp3tag}->{ID3v2}))
237 $self->{mp3tag}->{ID3v2}->remove_tag;
243 my($self, $thing)=@_;
245 if(exists($self->{mp3tag}->{ID3v1}) && $thing ne "genre")
248 $action="genre" if($action eq "v1genre");
249 if($action eq "track")
251 $self->{mp3tag}->{ID3v1}->track("00");
255 $self->{mp3tag}->{ID3v1}->$action(" ");
259 if(exists($self->{mp3tag}->{ID3v2}))
261 if($thing eq "artist")
263 $self->{mp3tag}->{ID3v2}->remove_frame("TPE1");
264 $self->{mp3tag}->{ID3v2}->remove_frame("TPE2");
266 elsif($thing eq "album")
268 $self->{mp3tag}->{ID3v2}->remove_frame("TALB");
270 elsif($thing eq "song")
272 $self->{mp3tag}->{ID3v2}->remove_frame("TIT2");
274 elsif($thing eq "track")
276 $self->{mp3tag}->{ID3v2}->remove_frame("TRCK");
278 elsif($thing eq "year")
280 $self->{mp3tag}->{ID3v2}->remove_frame("TYER");
281 $self->{mp3tag}->{ID3v2}->remove_frame("TDRC");
283 elsif($thing eq "comment")
285 $self->{mp3tag}->{ID3v2}->remove_frame("COMM");
287 elsif($thing eq "genre")
289 $self->{mp3tag}->{ID3v2}->remove_frame("TCON");
296 my ($self, @things)=@_;
299 return(sort keys(%hash));
305 return undef unless($self->{mp3info});
306 return( ($self->{mp3info}->stereo()) ? 2 : 1 );
312 return undef unless($self->{mp3info});
313 return( int($self->{mp3info}->bitrate()) );
319 return undef unless($self->{mp3info});
320 return(int($self->{mp3info}->frequency() * 1000));