2 # Ardour session synthesizer
3 # (c)Sampo Savolainen 2007-2008
6 # This reads an Ardour session file and creates zero-signal source files
7 # for each missing source file. The length of each file is determined
8 # by how far regions using that source file go into the sample data.
10 use XML::Parser::PerlSAX;
11 use XML::Handler::XMLWriter;
14 use ARDOUR::SourceInfoLoader;
16 my $usage = "usage: synthesize_sources.pl samplerate [session name, the name must match the directory and the .ardour file in it] [options: -sine for 440hz sine waves in wave files]\n";
18 my ($samplerate, $sessionName, @options) = @ARGV;
20 if ( ! -d $sessionName || ! -f $sessionName."/".$sessionName.".ardour" ) {
25 my $waveType = "silent";
27 foreach my $o (@options) {
30 } elsif ($o eq "-silent") {
33 print "unknown parameter ".$o."\n";
41 my $sessionFile = $sessionName."/".$sessionName.".ardour";
44 my $handler = new ARDOUR::SourceInfoLoader($sessionName);
46 my $parser = XML::Parser::PerlSAX->new( Handler => $handler );
48 $parser->parse(Source => { SystemId => $sessionFile });
50 if ( ! -d $sessionName."/interchange" ) {
51 mkdir $sessionName."/interchange/" || die "couldn't create ".$sessionName."/interchange";
54 if ( ! -d $sessionName."/interchange/".$sessionName ) {
55 mkdir $sessionName."/interchange/".$sessionName || die "couldn't create ".$sessionName."/interchange/".$sessionName;
58 if ( ! -d $sessionName."/interchange/".$sessionName."/audiofiles" ) {
59 mkdir $sessionName."/interchange/".$sessionName."/audiofiles" || die "couldn't create ".$sessionName."/interchange/".$sessionName."/audiofiles";
62 if ( ! -d $sessionName."/peaks") {
63 mkdir $sessionName."/peaks/" || die "couldn't create ".$sessionName."/peaks";
66 my $audioFileDirectory = $sessionName."/interchange/".$sessionName."/audiofiles";
68 my %sources = %{$handler->{Sources}};
70 foreach my $tmp (keys %sources) {
72 print "Generating ".$audioFileDirectory."/".$sources{$tmp}->{name}."\n";
76 "-t", "raw", # /dev/zero is raw :)
77 "-r", $samplerate, # set sample rate
78 "-c", "1", # 1 channel
79 "-b", # input in bytes
81 "/dev/zero", # input signal
84 "-t", "wav", # format wav
85 $audioFileDirectory."/".$sources{$tmp}->{name}, # filename
86 "trim", "0", $sources{$tmp}->{calculated_length}."s" # trim silence to wanted sample amount
89 if ($waveType eq "sine") {
90 @cmd = (@cmd, "synth","sin","%0", "vol", "0.2", "fade","q","0.01s", $sources{$tmp}->{calculated_length}."s" , "0.01s");