/usr/share/perl5/Audio/Nama/Effect_chain_subs.pm is in nama 1.078-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 | # ------------- Effect-Chain and -Profile routines --------
package Audio::Nama;
use Modern::Perl;
no warnings 'uninitialized';
our (
$project_name,
$this_track,
%effect_chain,
%effect_profile,
$debug,
$debug2,
%tn,
%cops,
%copp,
$magical_cop_id,
);
sub private_effect_chain_name {
my $name = "_$project_name/".$this_track->name.'_';
my $i;
map{ my ($j) = /_(\d+)$/; $i = $j if $j > $i; }
@{ $this_track->effect_chain_stack },
grep{/$name/} keys %effect_chain;
$name . ++$i
}
sub profile_effect_chain_name {
my ($profile, $track_name) = @_;
"_$profile\:$track_name";
}
# too many functions in push and pop!!
sub push_effect_chain {
$debug2 and say "&push_effect_chain";
my ($track, %vals) = @_;
# use supplied ops list, or default to user-applied (fancy) ops
my @ops = $vals{ops} ? @{$vals{ops}} : $track->fancy_ops;
say("no effects to store"), return unless @ops;
# use supplied name, or default to private name that will now show
# in listing
my $save_name = $vals{save} || private_effect_chain_name();
$debug and say "save name: $save_name";
# create a new effect-chain definition
new_effect_chain( $track, $save_name, @ops ); # current track effects
# store effect-chain name on track effect-chain stack
push @{ $track->effect_chain_stack }, $save_name;
# remove stored effects
map{ remove_effect($_)} @ops;
# return name
$save_name;
}
sub pop_effect_chain { # restore previous
$debug2 and say "&pop_effect_chain";
my $track = shift;
my $previous = pop @{$track->effect_chain_stack};
say("no previous effect chain"), return unless $previous;
map{ remove_effect($_)} $track->fancy_ops;
add_effect_chain($track, $previous);
delete $effect_chain{$previous};
}
sub overwrite_effect_chain {
$debug2 and say "&overwrite_effect_chain";
my ($track, $name) = @_;
print("$name: unknown effect chain.\n"), return if ! $effect_chain{$name};
push_effect_chain($track) if $track->fancy_ops;
add_effect_chain($track,$name);
}
sub new_effect_profile {
$debug2 and say "&new_effect_profile";
my ($bunch, $profile) = @_;
my @tracks = bunch_tracks($bunch);
say qq(effect profile "$profile" created for tracks: @tracks);
map { new_effect_chain($tn{$_}, profile_effect_chain_name($profile, $_));
} @tracks;
$effect_profile{$profile}{tracks} = [ @tracks ];
save_effect_chains();
save_effect_profiles();
}
sub delete_effect_profile {
$debug2 and say "&delete_effect_profile";
my $name = shift;
say qq(deleting effect profile: $name);
my @tracks = $effect_profile{$name};
delete $effect_profile{$name};
map{ delete $effect_chain{profile_effect_chain_name($name,$_)} } @tracks;
}
sub apply_effect_profile { # overwriting current effects
$debug2 and say "&apply_effect_profile";
my ($function, $profile) = @_;
my @tracks = @{ $effect_profile{$profile}{tracks} };
my @missing = grep{ ! $tn{$_} } @tracks;
@missing and say(join(',',@missing), ": tracks do not exist. Aborting."),
return;
@missing = grep { ! $effect_chain{profile_effect_chain_name($profile,$_)} } @tracks;
@missing and say(join(',',@missing), ": effect chains do not exist. Aborting."),
return;
map{ $function->( $tn{$_}, profile_effect_chain_name($profile,$_)) } @tracks;
}
sub list_effect_profiles {
my @results;
while( my $name = each %effect_profile){
push @results, "effect profile: $name\n";
push @results, list_effect_chains("_$name:");
}
@results;
}
sub restore_effects { pop_effect_chain($_[0])}
sub new_effect_chain {
my ($track, $name, @ops) = @_;
# say "name: $name, ops: @ops";
@ops or @ops = $track->fancy_ops;
say $track->name, qq(: creating effect chain "$name") unless $name =~ /^_/;
$effect_chain{$name} = {
ops => \@ops,
type => { map{$_ => $cops{$_}{type} } @ops},
params => { map{$_ => $copp{$_} } @ops},
};
save_effect_chains();
}
sub add_effect_chain {
my ($track, $name) = @_;
#say "track: $track name: ",$track->name, " effect chain: $name";
say("$name: effect chain does not exist"), return
if ! $effect_chain{$name};
say $track->name, qq(: adding effect chain "$name") unless $name =~ /^_/;
my $before = $track->vol;
map { $magical_cop_id = $_ unless $cops{$_}; # try to reuse cop_id
if ($before){
Audio::Nama::Text::t_insert_effect(
$before,
$effect_chain{$name}{type}{$_},
$effect_chain{$name}{params}{$_});
} else {
Audio::Nama::Text::t_add_effect(
$track,
$effect_chain{$name}{type}{$_},
$effect_chain{$name}{params}{$_});
}
$magical_cop_id = undef;
} @{$effect_chain{$name}{ops}};
}
sub list_effect_chains {
my @frags = @_; # fragments to match against effect_chain names
# we don't list chain_ids starting with underscore
# except when searching for particular chains
my @ids = grep{ @frags or ! /^_/ } keys %Audio::Nama::effect_chain;
if (@frags){
@ids = grep{ my $id = $_; grep{ $id =~ /$_/} @frags} @ids;
}
my @results;
map{ my $name = $_;
push @results, join ' ', "$name:",
map{$effect_chain{$name}{type}{$_},
@{$effect_chain{$name}{params}{$_}}
} @{$effect_chain{$name}{ops}};
push @results, "\n";
} @ids;
@results;
}
1;
__END__
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