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#!/usr/bin/env perl
# Ardour session synthesizer
# (c)Sampo Savolainen 2007-2008
#
# GPL
# This reads an Ardour session file and creates zero-signal source files
# for each missing source file. The length of each file is determined
# by how far regions using that source file go into the sample data.
use FindBin '$Bin';
use lib "$Bin";
use XML::Parser::PerlSAX;
use XML::Handler::XMLWriter;
use IO::Handle;
use ARDOUR::SourceInfoLoader;
my $usage = "usage: synthesize_sources.pl samplerate [session name, the name must match the directory and the .ardour file in it] [options: -sine for 440hz sine waves in wave files]\n";
my ($samplerate, $sessionName, @options) = @ARGV;
if ( ! -d $sessionName || ! -f $sessionName."/".$sessionName.".ardour" ) {
print $usage;
exit;
}
my $waveType = "silent";
foreach my $o (@options) {
if ($o eq "-sine") {
$waveType = "sine";
} elsif ($o eq "-silent") {
$waveType = "silent";
} else {
print "unknown parameter ".$o."\n";
print $usage;
exit;
}
}
my $sessionFile = $sessionName."/".$sessionName.".ardour";
my $handler = new ARDOUR::SourceInfoLoader($sessionName);
my $parser = XML::Parser::PerlSAX->new( Handler => $handler );
$parser->parse(Source => { SystemId => $sessionFile });
if ( ! -d $sessionName."/interchange" ) {
mkdir $sessionName."/interchange/" || die "couldn't create ".$sessionName."/interchange";
}
if ( ! -d $sessionName."/interchange/".$sessionName ) {
mkdir $sessionName."/interchange/".$sessionName || die "couldn't create ".$sessionName."/interchange/".$sessionName;
}
if ( ! -d $sessionName."/interchange/".$sessionName."/audiofiles" ) {
mkdir $sessionName."/interchange/".$sessionName."/audiofiles" || die "couldn't create ".$sessionName."/interchange/".$sessionName."/audiofiles";
}
if ( ! -d $sessionName."/peaks") {
mkdir $sessionName."/peaks/" || die "couldn't create ".$sessionName."/peaks";
}
my $audioFileDirectory = $sessionName."/interchange/".$sessionName."/audiofiles";
my %sources = %{$handler->{Sources}};
foreach my $tmp (keys %sources) {
print "Generating ".$audioFileDirectory."/".$sources{$tmp}->{name}."\n";
my @cmd =
("sox",
"-t", "raw", # /dev/zero is raw :)
"-r", $samplerate, # set sample rate
"-c", "1", # 1 channel
"-b", "8", # input in 8 bit chunks
"-s", # signed
"/dev/zero", # input signal
"-b", "16", # input in 16 bit chunks
"-t", "wav", # format wav
$audioFileDirectory."/".$sources{$tmp}->{name}, # filename
"trim", "0", $sources{$tmp}->{calculated_length}."s" # trim silence to wanted sample amount
);
if ($waveType eq "sine") {
@cmd = (@cmd, "synth","sin","%0", "vol", "0.2", "fade","q","0.01s", $sources{$tmp}->{calculated_length}."s" , "0.01s");
}
system(@cmd);
}
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