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lib/Audio/Nama/ChainSetup.pm  view on Meta::CPAN

# ---------- ChainSetup-----------

package Audio::Nama::ChainSetup;
use Audio::Nama::Globals qw($file $config $jack $setup %tn %bn %en $mode :trackrw $this_engine);
use Audio::Nama::Log qw(logsub logpkg);
use Modern::Perl '2020';
our $VERSION = 1.0;
use Data::Dumper::Concise;
use Storable qw(dclone);
use Audio::Nama::Util qw(signal_format input_node output_node);
use Audio::Nama::Assign qw(json_out);
no warnings 'uninitialized';

our (

	$g,  # routing graph object - 

		# based on project data 
		# the routing graph is generated,
		# then traversed over, and integrated
		# with track data to generate
		# Audio::Nama::IO objects. Audio::Nama::IO objects are iterated
		# over to generate 
		# the Ecasound chain setup text (c.f. chains command)

	@io, # IO objects corresponding to chain setup

	%is_ecasound_chain, # chains in final chain seutp

	# for sorting final result

	%inputs,
	%outputs,
	%post_input,
	%pre_output,

	# for final result
	
	@input_chains,	# list of input chain segments 
	@output_chains, # list of output chain segments
	@post_input,	# post-input chain operators
	@pre_output, 	# pre-output chain operators

	$chain_setup,	# final result as string
	);


sub remove_temporary_tracks {
	logsub((caller(0))[3]);
	map { logpkg(__FILE__,__LINE__,'debug',"removing temporary track ",$_->group.'/'.$_->name); $_->remove  } 
		grep{ $_->group eq 'Temp' } Audio::Nama::audio_tracks();
}
sub initialize {

	remove_temporary_tracks(); # we will generate them again
	$setup->{audio_length} = 0;  
	@io = (); 			# IO object list
	Audio::Nama::IO::initialize();
	$g = Graph->new(); 	
	%inputs = %outputs = %post_input = %pre_output = ();
	%is_ecasound_chain = ();
	@input_chains = @output_chains = @post_input = @pre_output = ();
	undef $chain_setup;
	Audio::Nama::disable_length_timer();
	reset_aux_chain_counter();
	unlink $file->chain_setup;