8 my ($filename, @others) = @ARGV;
9 my $opus = MIDI::Opus->new({from_file => $filename});
17 channel_after_touch => 2,
18 pitch_wheel_change => 2
22 set_tempo => sub { 1; },
23 note_off => sub { 1; },
24 note_on => sub { 1; },
25 control_change => sub { $_[3] == 64; },
31 return map { [$_->[0], $t += $_->[1], @{$_}[2..(@$_-1)]]; } @_;
37 return map { my $tsave = $t; $t = $_->[1]; [$_->[0], $t - $tsave, @{$_}[2..(@$_-1)]]; } @_;
42 return reltime grep { ($isclean{$_->[0]} // sub { 0; })->(@$_) } abstime @_;
47 my $opus2 = MIDI::Opus->new({from_file => $_});
48 if($opus2->ticks() != $opus->ticks())
50 my $tickfactor = $opus->ticks() / $opus2->ticks();
53 $_->events(reltime map { $_->[1] = int($_->[1] * $tickfactor + 0.5); $_; } abstime $_->events());
56 $opus->tracks($opus->tracks(), $opus2->tracks());
62 my @arg = split /\s+/, $_;
64 print "Executing: $cmd @arg\n";
67 my $tracks = $opus->tracks_r();
68 $tracks->[$_]->events_r([clean($tracks->[$_]->events())])
73 print $opus->dump({ dump_tracks => 1 });
75 elsif($cmd eq 'ticks')
79 $opus->ticks($arg[0]);
83 print "Ticks: ", $opus->ticks(), "\n";
86 elsif($cmd eq 'tricks')
88 print "haha, very funny\n";
90 elsif($cmd eq 'retrack')
92 my $tracks = $opus->tracks_r();
96 for(abstime $tracks->[$_]->events())
98 my $p = $chanpos{$_->[0]};
101 my $c = $_->[$p] + 1;
102 push @{$newtracks[$c]}, $_;
106 push @{$newtracks[0]}, $_;
110 $opus->tracks_r([map { ($_ && @$_) ? MIDI::Track->new({ events => [reltime @$_] }) : () } @newtracks]);
112 elsif($cmd eq 'program')
114 my $tracks = $opus->tracks_r();
115 my ($track, $channel, $program) = @arg;
116 for(($track eq '*') ? (0..@$tracks-1) : $track)
120 for(abstime $tracks->[$_]->events())
122 my $p = $chanpos{$_->[0]};
125 my $c = $_->[$p] + 1;
126 if($channel eq '*' || $c == $channel)
129 if $_->[0] eq 'patch_change';
132 push @events, ['patch_change', $_->[1], $c-1, $program-1]
140 $tracks->[$_]->events_r([reltime @events]);
143 elsif($cmd eq 'transpose')
145 my $tracks = $opus->tracks_r();
146 my ($track, $channel, $delta) = @arg;
147 for(($track eq '*') ? (0..@$tracks-1) : $track)
149 for($tracks->[$_]->events())
151 my $p = $chanpos{$_->[0]};
154 my $c = $_->[$p] + 1;
155 if($channel eq '*' || $c == $channel)
157 if($_->[0] eq 'note_on' || $_->[0] eq 'note_off')
166 elsif($cmd eq 'channel')
168 my $tracks = $opus->tracks_r();
169 my ($track, %chanmap) = @arg;
170 for(($track eq '*') ? (0..@$tracks-1) : $track)
173 for(abstime $tracks->[$_]->events())
175 my $p = $chanpos{$_->[0]};
178 my $c = $_->[$p] + 1;
179 $c = $chanmap{$c} // $chanmap{'*'} // $c;
181 if $c == 0; # kill by setting channel to 0
186 $tracks->[$_]->events_r([reltime @events]);
189 elsif($cmd eq 'percussion')
191 my $tracks = $opus->tracks_r();
192 my ($track, $channel, %map) = @arg;
193 for(($track eq '*') ? (0..@$tracks-1) : $track)
196 for(abstime $tracks->[$_]->events())
198 my $p = $chanpos{$_->[0]};
201 my $c = $_->[$p] + 1;
202 if($channel eq '*' || $c == $channel)
204 if($_->[0] eq 'note_on' || $_->[0] eq 'note_off')
206 if(length $map{$_->[3]})
208 $_->[3] = $map{$_->[3]};
210 elsif(exists $map{$_->[3]})
219 $tracks->[$_]->events_r([reltime @events]);
222 elsif($cmd eq 'tracks')
224 my $tracks = $opus->tracks_r();
237 next if $taken{$_}++ and not $force;
238 push @t, $tracks->[$_];
240 $opus->tracks_r(\@t);
253 for($tracks->[$_]->events())
256 $_->[0] = 'note_off' if $_->[0] eq 'note_on' and $_->[4] == 0;
258 my $p = $chanpos{$_->[0]};
261 my $c = $_->[$p] + 1;
262 $channels{$c} //= {};
263 if($_->[0] eq 'patch_change')
265 ++$channels{$c}{$_->[3]};
268 ++$notes if $_->[0] eq 'note_on';
269 $notehash{$_->[2]}{$_->[3]} = $t if $_->[0] eq 'note_on';
270 $notehash{$_->[2]}{$_->[3]} = undef if $_->[0] eq 'note_off';
271 $name = $_->[2] if $_->[0] eq 'track_name';
273 my $channels = join " ", map { sprintf "%s(%s)", $_, join ",", sort { $a <=> $b } keys %{$channels{$_}} } sort { $a <=> $b } keys %channels;
275 while(my ($k1, $v1) = each %notehash)
277 while(my ($k2, $v2) = each %$v1)
279 push @stuck, sprintf "%d:%d@%.1f%%", $k1+1, $k2, $v2 * 100.0 / $t
283 print " $name" if defined $name;
284 print " (channel $channels)" if $channels ne "";
285 print " ($events events)" if $events;
286 print " ($notes notes)" if $notes;
287 print " (notes @stuck stuck)" if @stuck;
292 elsif($cmd eq 'save')
294 $opus->write_to_file($arg[0]);
298 print "Unknown command, allowed commands:\n";
301 print " ticks [value]\n";
303 print " program <track|*> <channel|*> <program (1-based)>\n";
304 print " transpose <track|*> <channel|*> <delta>\n";
305 print " channel <track|*> <channel|*> <channel> [<channel> <channel> ...]\n";
306 print " percussion <track|*> <channel|*> <from> <to> [<from> <to> ...]\n";
307 print " tracks [trackno] [trackno] ...\n";
309 print "Done with: $cmd @arg\n";