Allow remapping a channel to multiple channels (to duplicate notes).

[xonotic/xonotic.git] / misc / tools / midichannels.pl

diff --git a/misc/tools/midichannels.pl b/misc/tools/midichannels.pl
index 4df6978be9bb2cb790d4d5523d80feed46b7979d..5462bbb8ed97cdbe434d76a05e2911de207dc6ec 100755 (executable)
--- a/misc/tools/midichannels.pl
+++ b/misc/tools/midichannels.pl
@@ -62,7 +62,11 @@ while(<STDIN>)
        my @arg = split /\s+/, $_;
        my $cmd = shift @arg;
        print "Executing: $cmd @arg\n";
-       if($cmd eq 'clean')
+       if($cmd eq '#')
+       {
+               # Just a comment.
+       }
+       elsif($cmd eq 'clean')
        {
                my $tracks = $opus->tracks_r();
                $tracks->[$_]->events_r([clean($tracks->[$_]->events())])
@@ -112,8 +116,8 @@ while(<STDIN>)
        elsif($cmd eq 'program')
        {
                my $tracks = $opus->tracks_r();
-               my ($channel, $program) = @arg;
-               for(0..@$tracks-1)
+               my ($track, $channel, $program) = @arg;
+               for(($track eq '*') ? (0..@$tracks-1) : $track)
                {
                        my @events = ();
                        my $added = 0;
@@ -123,7 +127,7 @@ while(<STDIN>)
                                if(defined $p)
                                {
                                        my $c = $_->[$p] + 1;
-                                       if($c == $channel)
+                                       if($channel eq '*' || $c == $channel)
                                        {
                                                next
                                                        if $_->[0] eq 'patch_change';
@@ -152,7 +156,7 @@ while(<STDIN>)
                                if(defined $p)
                                {
                                        my $c = $_->[$p] + 1;
-                                       if($channel eq '*' || $c == $channel)
+                                       if($channel eq '*' ? $c != 10 : $c == $channel)
                                        {
                                                if($_->[0] eq 'note_on' || $_->[0] eq 'note_off')
                                                {
@@ -163,11 +167,39 @@ while(<STDIN>)
                        }
                }
        }
+       elsif($cmd eq 'channel')
+       {
+               my $tracks = $opus->tracks_r();
+               my ($track, %chanmap) = @arg;
+               for(($track eq '*') ? (0..@$tracks-1) : $track)
+               {
+                       my @events = ();
+                       for(abstime $tracks->[$_]->events())
+                       {
+                               my $p = $chanpos{$_->[0]};
+                               if(!defined $p)
+                               {
+                                       push @events, $_;
+                                       next;
+                               }
+                               my $c = $_->[$p] + 1;
+                               my @c = split /,/, ($chanmap{$c} // $chanmap{'*'} // $c);
+                               for my $c(@c) {
+                                       next
+                                               if $c == 0; # kill by setting channel to 0
+                                       my @copy = @$_;
+                                       $copy[$p] = $c - 1;
+                                       push @events, \@copy;
+                               }
+                       }
+                       $tracks->[$_]->events_r([reltime @events]);
+               }
+       }
        elsif($cmd eq 'percussion')
        {
                my $tracks = $opus->tracks_r();
-               my %map = @arg;
-               for(0..@$tracks-1)
+               my ($track, $channel, %map) = @arg;
+               for(($track eq '*') ? (0..@$tracks-1) : $track)
                {
                        my @events = ();
                        for(abstime $tracks->[$_]->events())
@@ -176,7 +208,7 @@ while(<STDIN>)
                                if(defined $p)
                                {
                                        my $c = $_->[$p] + 1;
-                                       if($c == 10)
+                                       if($channel eq '*' || $c == $channel)
                                        {
                                                if($_->[0] eq 'note_on' || $_->[0] eq 'note_off')
                                                {
@@ -227,6 +259,8 @@ while(<STDIN>)
                                my %notehash = ();
                                my $t = 0;
                                my $events = 0;
+                               my $min = undef;
+                               my $max = undef;
                                for($tracks->[$_]->events())
                                {
                                        ++$events;
@@ -246,6 +280,11 @@ while(<STDIN>)
                                        $notehash{$_->[2]}{$_->[3]} = $t if $_->[0] eq 'note_on';
                                        $notehash{$_->[2]}{$_->[3]} = undef if $_->[0] eq 'note_off';
                                        $name = $_->[2] if $_->[0] eq 'track_name';
+                                       if($_->[0] eq 'note_on')
+                                       {
+                                               $min = $_->[3] if !defined $min || $_->[3] < $min;
+                                               $max = $_->[3] if !defined $max || $_->[3] > $max;
+                                       }
                                }
                                my $channels = join " ", map { sprintf "%s(%s)", $_, join ",", sort { $a <=> $b } keys %{$channels{$_}} } sort { $a <=> $b } keys %channels;
                                my @stuck = ();
@@ -260,7 +299,7 @@ while(<STDIN>)
                                print " $name" if defined $name;
                                print " (channel $channels)" if $channels ne "";
                                print " ($events events)" if $events;
-                               print " ($notes notes)" if $notes;
+                               print " ($notes notes [$min-$max])" if $notes;
                                print " (notes @stuck stuck)" if @stuck;
                                print "\n";
                        }
@@ -277,9 +316,10 @@ while(<STDIN>)
                print "  dump\n";
                print "  ticks [value]\n";
                print "  retrack\n";
-               print "  program <channel> <program (1-based)>\n";
+               print "  program <track|*> <channel|*> <program (1-based)>\n";
                print "  transpose <track|*> <channel|*> <delta>\n";
-               print "  percussion <from> <to> [<from> <to> ...]\n";
+               print "  channel <track|*> <channel|*> <channel> [<channel> <channel> ...]\n";
+               print "  percussion <track|*> <channel|*> <from> <to> [<from> <to> ...]\n";
                print "  tracks [trackno] [trackno] ...\n";
        }
        print "Done with: $cmd @arg\n";