midichannels.pl: fix program or control change on more than one channel

The previous code emitted only a MIDI event for the first channel - but
we need one for all.

diff --git a/misc/tools/midichannels.pl b/misc/tools/midichannels.pl
index 944cf02218832a82da497dc5db9bacd01b1c3d8e..4f47b9fdc521165157f239280b3cbaadec54ed02 100755 (executable)
--- a/misc/tools/midichannels.pl
+++ b/misc/tools/midichannels.pl
@@ -118,11 +118,11 @@ while(<STDIN>)
        {
                my $tracks = $opus->tracks_r();
                my ($track, $channel, $program) = @arg;
-               for(($track eq '*') ? (0..@$tracks-1) : $track)
+               for my $t(($track eq '*') ? (0..@$tracks-1) : $track)
                {
                        my @events = ();
-                       my $added = 0;
-                       for(abstime $tracks->[$_]->events())
+                       my %added = ();
+                       for(abstime $tracks->[$t]->events())
                        {
                                my $p = $chanpos{$_->[0]};
                                if(defined $p)
@@ -132,28 +132,28 @@ while(<STDIN>)
                                        {
                                                next
                                                        if $_->[0] eq 'patch_change';
-                                               if(!$added)
+                                               if(!$added{$t}{$c})
                                                {
                                                        push @events, ['patch_change', $_->[1], $c-1, $program-1]
                                                                if $program;
-                                                       $added = 1;
+                                                       $added{$t}{$c} = 1;
                                                }
                                        }
                                }
                                push @events, $_;
                        }
-                       $tracks->[$_]->events_r([reltime @events]);
+                       $tracks->[$t]->events_r([reltime @events]);
                }
        }
        elsif($cmd eq 'control')
        {
                my $tracks = $opus->tracks_r();
                my ($track, $channel, $control, $value) = @arg;
-               for(($track eq '*') ? (0..@$tracks-1) : $track)
+               for my $t(($track eq '*') ? (0..@$tracks-1) : $track)
                {
                        my @events = ();
-                       my $added = 0;
-                       for(abstime $tracks->[$_]->events())
+                       my %added = ();
+                       for(abstime $tracks->[$t]->events())
                        {
                                my $p = $chanpos{$_->[0]};
                                if(defined $p)
@@ -163,17 +163,17 @@ while(<STDIN>)
                                        {
                                                next
                                                        if $_->[0] eq 'control_change' && $_->[3] == $control;
-                                               if(!$added)
+                                               if(!$added{$t}{$c})
                                                {
                                                        push @events, ['control_change', $_->[1], $c-1, $control, $value]
                                                                if $value ne '';
-                                                       $added = 1;
+                                                       $added{$t}{$c} = 1;
                                                }
                                        }
                                }
                                push @events, $_;
                        }
-                       $tracks->[$_]->events_r([reltime @events]);
+                       $tracks->[$t]->events_r([reltime @events]);
                }
        }
        elsif($cmd eq 'transpose')