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#!/usr/bin/env perl
# Ardour session synthesizer
# (c)Sampo Savolainen 2007
#
# 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 XML::Parser::PerlSAX;
use XML::Handler::XMLWriter;
use IO::Handle;
use ARDOUR::SourceInfoLoader;
my ($samplerate, $sessionName) = @ARGV;
if ( ! -d $sessionName || ! -f $sessionName."/".$sessionName.".ardour" ) {
print "usage: synthesize_sources.pl samplerate [session name, the name must match the directory and the .ardour file in it]\n";
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}.".wav\n";
system("sox",
"-t", "raw", # /dev/zero is raw :)
"-r", $samplerate, # set sample rate
"-c", "1", # 1 channel
"-b", # input in bytes
"-s", # signed
"/dev/zero", # input signal
"-w", # output 16 bit
"-t", "wav", # format wav
$audioFileDirectory."/".$sources{$tmp}->{name}, # filename
"trim", "0", $sources{$tmp}->{calculated_length}."s" # trim silence to wanted sample amount
);
}
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