C++ MarSystemManager类代码示例

// thread code
void* run(void * arg)
{
  
  thread_data* data = (thread_data*) arg;

  MarSystemManager mng;
  NetworkTCPSource* src = new NetworkTCPSource("src");
  
  MarSystem* featureNetwork = mng.create("Series", "featureNetwork");
  featureNetwork->addMarSystem(src);
  featureNetwork->addMarSystem(mng.create("AudioSink", "sink"));
  // featureNetwork->addMarSystem(mng.create("PlotSink", "psink"));
  
  featureNetwork->updctrl("NetworkTCPSource/src/mrs_natural/dataPort", data->dataPort);
  featureNetwork->updctrl("NetworkTCPSource/src/mrs_natural/controlsPort", data->controlsPort);

  featureNetwork->linkctrl("mrs_bool/hasData", "NetworkTCPSource/src/mrs_bool/hasData");
  
  src->refresh();
  
  mrs_natural wc = 0;
  
  mrs_real* controls = 0;
  
  mrs_natural onSamples = featureNetwork->getctrl("mrs_natural/onSamples")->to<mrs_natural>();
  
  
  // start the network 
  while ( featureNetwork->getctrl("mrs_bool/hasData")->to<mrs_bool>() ) {

	try {
		
		controls = featureNetwork->recvControls();	
      		if ( controls != 0 ) {
			
			// get some reference controls, so if they have changed we update them
			mrs_natural inSamples = featureNetwork->getctrl("mrs_natural/inSamples")->to<mrs_natural>();
			mrs_natural inObservations = featureNetwork->getctrl("mrs_natural/inObservations")->to<mrs_natural>();
			mrs_real israte = featureNetwork->getctrl("mrs_real/israte")->to<mrs_real>();
			
			if ( (mrs_natural)controls[1] != inSamples || (mrs_natural)controls[2] != inObservations 
					|| controls[3] != israte ) {
			
				featureNetwork->updctrl("mrs_natural/inSamples", (mrs_natural)controls[1]);
				featureNetwork->updctrl("mrs_natural/inObservations", (mrs_natural)controls[2]);
				featureNetwork->updctrl("mrs_real/israte", controls[3]);
			}
      		}
		
		featureNetwork->tick(); // everything happens here 
	} catch ( SocketException e ) {
  		cerr << "Played " << wc << " slices of " << onSamples << " samples" << endl;
		pthread_exit(NULL);
	}
 	wc++;
   }
  cout << "played - " << wc << " slices of " << onSamples << " samples" << endl;
 
  pthread_exit( NULL );
}

Mapper::Mapper()
{
  // Create the MarSystem network for playback.
  MarSystemManager mng;

  m_system = mng.create("Series", "pnet_");
  m_system->addMarSystem(mng.create("SoundFileSource", "src"));
  m_system->addMarSystem(mng.create("Gain", "gain"));
  m_system->addMarSystem(mng.create("AudioSink", "dest"));
  m_system->updControl("mrs_natural/inSamples", 2048);

  m_system->linkControl("mrs_bool/hasData", "SoundFileSource/src/mrs_bool/hasData");

  // Create a handy Qt wrapper for the MarSystem.
  m_qsystem = new MarsyasQt::System(m_system);

  // Get handles for all the controls.
  m_fileControl = m_qsystem->control("SoundFileSource/src/mrs_string/filename");
  m_gainControl = m_qsystem->control("Gain/gain/mrs_real/gain");
  m_repetitionControl = m_qsystem->control("SoundFileSource/src/mrs_real/repetitions");
  m_positionControl = m_qsystem->control("SoundFileSource/src/mrs_natural/pos");
  m_sizeControl = m_qsystem->control("SoundFileSource/src/mrs_natural/size");
  m_outputSampleRateControl = m_qsystem->control("SoundFileSource/src/mrs_real/osrate");
  m_initAudioControl = m_qsystem->control("AudioSink/dest/mrs_bool/initAudio");

  connect( &m_controlEmitTimer, SIGNAL(timeout()), this, SLOT(emitControlValues()) );
}

void carfac_testing(string inAudioFileName)
{
  cout << "carfac_testing" << endl;
  cout << "inAudioFileName=" << inAudioFileName << endl;

  MarSystemManager mng;

  // Create the network
  MarSystem* net = mng.create("Series", "net");
  net->addMarSystem(mng.create("SoundFileSource", "src"));

  MarSystem* carfac = mng.create("CARFAC", "carfac");
  net->addMarSystem(carfac);

  net->addMarSystem(mng.create("Gain", "gain"));

  net->updControl("SoundFileSource/src/mrs_string/filename",inAudioFileName);
  net->updControl("mrs_natural/inSamples",512);

  // Just print the coefficients
  carfac->updControl("mrs_bool/printcoeffs",true);
  carfac->updControl("mrs_bool/printstate",false);
  cout << carfac->toString();

  // Just print the state
  carfac->updControl("mrs_bool/printcoeffs",false);
  carfac->updControl("mrs_bool/printstate",true);
  for (int i = 0; i < 5; i++) {
    net->tick();
    cout << "@@@@@@@@@@@@@@@@@@@@@@@@ "<< i + 1 << " @@@@@@@@@@@@@@@@@@@@@@@@" << endl;
    cout << carfac->toString();

  }
}

static MarSystem *load_network( const string system_filename )
{

  auto string_ends_with =
      []( const string & str, const string & ending ) -> bool
  {
    if (str.length() < ending.length())
      return false;
    return str.compare( str.length() - ending.length(), ending.length(), ending ) == 0;
  };

  MarSystem* system = 0;

  if (string_ends_with(system_filename, ".mrs"))
  {
#ifdef MARSYAS_HAS_SCRIPT
    system = system_from_script_file(system_filename);
#endif
  }
  else if (string_ends_with(system_filename, ".mpl"))
  {
    ifstream system_istream(system_filename);
    MarSystemManager mng;
    system = mng.getMarSystem(system_istream);
  }
  else if (string_ends_with(system_filename, ".json"))
  {
#ifdef MARSYAS_HAS_JSON
    system = system_from_json_file(system_filename);
#endif
  }

  return system;
}

void
toy_with_arff_in_out(mrs_string in_name, mrs_string out_name)
{
    MarSystemManager mng;

    MarSystem *net = mng.create("Series", "net");
    net->addMarSystem(mng.create("WekaSource", "src"));
    net->addMarSystem(mng.create("WekaSink", "dest"));

    net->updControl("WekaSource/src/mrs_string/filename", in_name);

    net->updControl("WekaSink/dest/mrs_natural/nLabels",
                    net->getControl("WekaSource/src/mrs_natural/nClasses"));
    net->updControl("WekaSink/dest/mrs_string/labelNames",
                    net->getControl("WekaSource/src/mrs_string/classNames"));
    net->updControl("WekaSink/dest/mrs_bool/regression",
                    net->getControl("WekaSource/src/mrs_bool/regression"));

    // must happen after setting the above controls
    net->updControl("WekaSink/dest/mrs_string/filename", out_name);

    while ( !net->getctrl("WekaSource/src/mrs_bool/done")->to<mrs_bool>() )
    {
        net->tick();
    }
    delete net;
}

void newMidiInfo()
{
    /*
	  This function describes using the MidiInput object and MarControlPointers 
	  to read midi controls in a loop. The disadvantage of this approach is that
	  MidiINput will only return the last midi value between buffers. Change the 
	  buffer size you would like more precision and throughput for midi messages. 
    */
    MarSystemManager mng;
    MarSystem* series = mng.create("Series", "series");
    series->addMarSystem(mng.create("AudioSource","src"));
    series->addMarSystem(mng.create("MidiInput","midiin"));

    series->updctrl("mrs_real/israte", 44100.0);
    series->updctrl("mrs_real/osrate", 44100.0);
    // to change how often marsyas grabs messages change the buffersize
    series->updctrl("AudioSource/src/mrs_natural/bufferSize", 64);
    series->updctrl("AudioSource/src/mrs_bool/initAudio",true);
    series->updctrl("MidiInput/midiin/mrs_bool/initmidi",true);

    MarControlPtr b1 = series->getctrl("MidiInput/midiin/mrs_natural/byte1");
    MarControlPtr b2 = series->getctrl("MidiInput/midiin/mrs_natural/byte2");
    MarControlPtr b3 = series->getctrl("MidiInput/midiin/mrs_natural/byte3");

    while(1) 
    {  
        const  mrs_natural& byte1 = b1->to<mrs_natural>(); 
        const  mrs_natural& byte2 = b2->to<mrs_natural>();   
        const  mrs_natural& byte3 = b3->to<mrs_natural>(); 

        std::cout <<  "Byte 1: " << byte1 << "    Byte 2: " << byte2 << "    Byte 3: " << byte3 << endl;

        series->tick();
    }
}

MarBackend::MarBackend()
{
// make a typical Marsyas network:
	MarSystemManager mng;
	playbacknet = mng.create("Series", "playbacknet");
	playbacknet->addMarSystem(mng.create("SoundFileSource", "src"));
	playbacknet->addMarSystem(mng.create("Gain", "gain"));
	playbacknet->addMarSystem(mng.create("AudioSink", "dest"));
	playbacknet->updctrl("AudioSink/dest/mrs_bool/initAudio", true);

// wrap it up to make it pretend to be a Qt object:
	mrsWrapper = new MarSystemQtWrapper(playbacknet);
	mrsWrapper->start();

// make these pomrs_naturalers so that we can mrs_naturalerface with the network
// in a thread-safe manner:
	filenamePtr = mrsWrapper->getctrl("SoundFileSource/src/mrs_string/filename");
	gainPtr = mrsWrapper->getctrl("Gain/gain/mrs_real/gain");
	positionPtr = mrsWrapper->getctrl("SoundFileSource/src/mrs_natural/pos");

// demonstrates information flow:  Marsyas->Qt.
	QTimer *timer = new QTimer(this);
	connect(timer, SIGNAL(timeout()), this, SLOT(getBackendPosition()));
	timer->start(1000);
}

// Play a collection l of soundfiles
void sfplay(Collection l, mrs_natural offset, mrs_natural duration, mrs_real start, mrs_real length, mrs_real gain, mrs_real repetitions)
{
  MRSDIAG("sendUDP.cpp - sendUDP");
  int i;

  // Load first soundfile in collection
  string sfName = l.entry(0);
  SoundFileSource* src = new SoundFileSource("src");
  src->updctrl("mrs_string/filename", sfName);

  // create the network sink
  NetworkUDPSink* netSink = new NetworkUDPSink("netSink");

  // update controls if they are passed on cmd line...
  if ( host != EMPTYSTRING && port != 0 ) {
    netSink->updctrl("mrs_string/host", host);
    netSink->updctrl("mrs_natural/port", port);
  }
  if ( port != 0 && host == EMPTYSTRING ) {
    cerr << "Please specify a hostname." << endl;
    exit(1);
  } else if ( port == 0 && host != EMPTYSTRING ) {
    cerr << "Please specify a port." << endl;
    exit(1);
  }

  AudioSink* auSink = new AudioSink("auSink");

  // create playback network
  MarSystemManager mn;
  Series playbacknet("playbacknet");
  playbacknet.addMarSystem(src);
  playbacknet.addMarSystem(mn.create("Gain", "gt"));
  playbacknet.addMarSystem(auSink);
  playbacknet.addMarSystem(netSink);

  playbacknet.updctrl("AudioSink/auSink/mrs_natural/nChannels", 1);

  // output the MarSystem
  cout << playbacknet << endl;

  // refresh the connection...

  netSink->refresh();
  cout << "Connecting to host: " << netSink->getctrl("mrs_string/host");
  cout << " on port: " << netSink->getctrl("mrs_natural/port") << endl;


  // For each file in collection playback the sound
  for (i=0; i < l.size(); i++)
  {
    sfName = l.entry(i);
    sfplayFile(playbacknet, offset, duration,
               start, length, gain, repetitions, sfName );
  }
}

void
distance_matrix()
{
  if (!wekafname_Set()) return;

  cout << "Distance matrix calculation using " << wekafname_ << endl;

  wekafname_  = inputdir_ + wekafname_;

  MarSystemManager mng;

  MarSystem* net = mng.create("Series", "net");

  MarSystem* wsrc = mng.create("WekaSource", "wsrc");
  net->addMarSystem(wsrc);
	//!!!: mode control
	net->updControl("WekaSource/wsrc/mrs_string/validationMode", "OutputInstancePair");
	net->updControl("WekaSource/wsrc/mrs_bool/normMaxMin", true);
  net->updControl("WekaSource/wsrc/mrs_string/filename", wekafname_);


	MarSystem* dmatrix = mng.create("SelfSimilarityMatrix", "dmatrix");
  dmatrix->addMarSystem(mng.create("Metric", "dmetric"));
  dmatrix->updControl("Metric/dmetric/mrs_string/metric", "euclideanDistance");
	//!!!: lmartins: normalization can only be applied when we have all feature vectors in memory...
	//... which is what we are trying to avoid here (having big realvecs in memory)...
  //dmatrix->updControl("mrs_string/normalize", "MinMax");
  net->addMarSystem(dmatrix);
	//!!!: mode control
	net->updControl("SelfSimilarityMatrix/dmatrix/mrs_natural/mode", 1); //FIXME: replace use of enum for strings?

	//link controls between WekaSource and SelfSimilarityMatrix
	net->linkControl("SelfSimilarityMatrix/dmatrix/mrs_natural/nInstances",
									 "WekaSource/wsrc/mrs_natural/nInstances");
	net->linkControl("WekaSource/wsrc/mrs_realvec/instanceIndexes",
									 "SelfSimilarityMatrix/dmatrix/mrs_realvec/instanceIndexes");

	ofstream oss;
	oss.open(distancematrix_.c_str());
	oss << "Marsyas-kea distance matrix" << endl;

	while(!net->getctrl("SelfSimilarityMatrix/dmatrix/mrs_bool/done")->to<bool>())
	{
		const mrs_realvec& idxs = net->getctrl("SelfSimilarityMatrix/dmatrix/mrs_realvec/instanceIndexes")->to<mrs_realvec>();
		oss << "(" << mrs_natural(idxs(0)) << "," << mrs_natural(idxs(1)) << ") = ";

		net->tick();

		const mrs_realvec& value = net->getctrl("mrs_realvec/processedData")->to<mrs_realvec>();
		oss << value(0) << endl;
	}

  oss << endl;
}

int
main(int argc, const char **argv)
{	
    (void) argc;  // tells the compiler that we know that we're not
    (void) argv;  // using these two variables
	MRSDIAG("helloWorld.cpp - main");

	// cout << "This is probably the simplest Marsyas example code: it simply
	// generates a sine wave with a frequency of 440Hz and send it to the audio
	// card output. Simple press CTRL+C to quit." << endl;
	
	//we usualy start by creating a MarSystem manager 
	//to help us on MarSystem creation
	MarSystemManager mng;

	//create the network, which is a simple Series network with a sine wave
	//oscilator and a audio sink object to send the ausio data for playing 
	//in the sound card
	MarSystem *network = mng.create("Series", "network");
	network->addMarSystem(mng.create("SineSource", "src"));
	network->addMarSystem(mng.create("AudioSink", "dest"));
	network->addMarSystem(mng.create("SoundFileSink", "dest2"));

	//set the window (i.e. audio frame) size (in samples). Let's say, 256 samples.
	//This is done in the outmost MarSystem (i.e. the Series/network) because flow
	//controls (as is the case of inSamples) are propagated through the network.
	//Check the Marsyas documentation for mode details.
	network->updControl("mrs_natural/inSamples", 4096);
 

	//set oscilator frequency to 440Hz
	network->updControl("SineSource/src/mrs_real/frequency", 440.0);

	// set the sampling to 44100  - a safe choice in most configurations 
	network->updControl("mrs_real/israte", 44100.0);
	network->updControl("AudioSink/dest/mrs_bool/initAudio", true);
	network->updControl("SoundFileSink/dest2/mrs_string/filename", "helloworld.wav");
	

	//now it's time for ticking the network, 
	//ad aeternum (i.e. until the user quits by CTRL+C)
	while (1) 
	{
		network->tick();
	}

	//ok, this is not really necessary because we are quiting by CTRL+C, 
	//but it's a good habit anyway ;-)
	delete network;

	return(0);
}

void
toy_with_spectral_single(mrs_string sfname)
{
    MarSystemManager mng;

    MarSystem *net = mng.create("Series", "net");
    net->addMarSystem(mng.create("SoundFileSource", "src"));
    net->addMarSystem(mng.create("ShiftInput", "si"));
    net->addMarSystem(mng.create("Windowing", "win"));
    net->addMarSystem(mng.create("Spectrum", "spec"));
    net->addMarSystem(mng.create("PowerSpectrum", "pspec"));
    net->updControl("SoundFileSource/src/mrs_string/filename", sfname);
    net->updControl("mrs_natural/inSamples", 1024);
    net->updControl("ShiftInput/si/mrs_natural/winSize", 1024);
    net->updControl("Windowing/win/mrs_string/type", "Hanning");

    MarSystem *fan = mng.create("Fanout", "fan");
    net->addMarSystem(fan);
    fan->addMarSystem(mng.create("SpectralFlatnessAllBands", "sfab"));

    while ( net->getctrl("SoundFileSource/src/mrs_bool/hasData")->to<mrs_bool>() )
    {
        net->tick();
        mrs_realvec v = net->getctrl("mrs_realvec/processedData")->to<mrs_realvec>();
        for (mrs_natural i = 0; i<v.getSize(); ++i)
        {
            printf("%.5g\t", v(i));
        }
        cout<<endl;
    }
    delete net;
}

// please keep this at the end of all the toy_with_ functions.
// to use, copy this and paste it above, then modify as needed
void
toy_with_null(mrs_string sfname)
{
  MarSystemManager mng;

  MarSystem *net = mng.create("Series", "net");
  net->addMarSystem(mng.create("SoundFileSource", "src"));
  net->addMarSystem(mng.create("ShiftInput", "si"));
  // you probably want to add more here
  net->addMarSystem(mng.create("Spectrum", "spec"));
  net->addMarSystem(mng.create("PowerSpectrum", "pspec"));
  net->addMarSystem(mng.create("Spectrum2Chroma", "s2c"));
  net->addMarSystem(mng.create("PlotSink", "ps"));

  net->updControl("SoundFileSource/src/mrs_string/filename", sfname);
  net->updControl("mrs_natural/inSamples", 512);
  net->updControl("mrs_natural/inSamples", 1024);
  net->updControl("ShiftInput/si/mrs_natural/winSize", 512);

  while ( net->getctrl("SoundFileSource/src/mrs_bool/hasData")->to<mrs_bool>() )
  {
    net->tick();
#if 0
    mrs_realvec v = net->getctrl("mrs_realvec/processedData")->to<mrs_realvec>();
    for (mrs_natural i = 0; i<v.getSize(); ++i)
    {
      printf("%.5g\t", v(i));
    }
    cout<<endl;
#endif
  }
  delete net;
}

// ********************** start toys **********
void
toy_with_harmonicStrength(mrs_string sfname)
{
    MarSystemManager mng;

    MarSystem *net = mng.create("Series", "net");
    net->addMarSystem(mng.create("SoundFileSource", "src"));
    net->addMarSystem(mng.create("ShiftInput", "si"));
    net->addMarSystem(mng.create("Windowing", "win"));
    net->addMarSystem(mng.create("Spectrum", "spec"));
    net->addMarSystem(mng.create("PowerSpectrum", "pspec"));
    net->addMarSystem(mng.create("HarmonicStrength", "harm"));
    net->updControl("SoundFileSource/src/mrs_string/filename", sfname);
    net->updControl("mrs_natural/inSamples", 512);
    net->updControl("ShiftInput/si/mrs_natural/winSize", 1024);
    net->updControl("Windowing/win/mrs_string/type", "Hanning");

    mrs_natural num_harmonics = 30;
    realvec harmonics(num_harmonics);
    /*
    cout<<"---------------------------"<<endl;
    cout<<"Relative harmonic strengths"<<endl;
    for (mrs_natural h = 0; h<num_harmonics; ++h)
    {
    		if (h==num_harmonics-1)
    		{
    			cout<<"0.5"<<"\t";
    			harmonics(h) = 0.5;
    		}
    		else
    	{
    		cout<<h<<"\t";
    		harmonics(h) = h+1;
    	}
    }
    cout<<endl;
    */

    //net->updControl("HarmonicStrength/harm/mrs_realvec/harmonics", harmonics);
    net->updControl("HarmonicStrength/harm/mrs_natural/harmonicsSize", num_harmonics);
    net->updControl("HarmonicStrength/harm/mrs_real/harmonicsWidth", 0.0);
    net->updControl("HarmonicStrength/harm/mrs_natural/type", 1);
    net->updControl("HarmonicStrength/harm/mrs_real/base_frequency", 200.0);
    // typical value for piano strings
    net->updControl("HarmonicStrength/harm/mrs_real/inharmonicity_B", 2e-5);

    while ( net->getctrl("SoundFileSource/src/mrs_bool/hasData")->to<mrs_bool>() )
    {
        net->tick();
        mrs_realvec v = net->getctrl("mrs_realvec/processedData")->to<mrs_realvec>();
        for (mrs_natural h = 0; h<num_harmonics; ++h)
        {
            //printf("%.2f\t", v(h));
            printf("%.8g\t", v(h));
        }
        cout<<endl;
    }
    delete net;
}

void record(mrs_real length, mrs_real gain, string filename) 
{
    MarSystemManager mng;

    MarSystem* recordNet = mng.create("Series", "recordNet");
    MarSystem* asrc = mng.create("AudioSource", "asrc");
    MarSystem* dest = mng.create("SoundFileSink", "dest");

    recordNet->addMarSystem(asrc);
    recordNet->addMarSystem(dest);

    recordNet->updControl("mrs_natural/inSamples", 4096);
    recordNet->updControl("mrs_real/israte", sropt);
    recordNet->updControl("AudioSource/asrc/mrs_natural/nChannels", copt);
    recordNet->updControl("AudioSource/asrc/mrs_real/gain", gain);

    // Ready to initialize audio device 
    recordNet->updControl("AudioSource/asrc/mrs_bool/initAudio", true);

    recordNet->updControl("SoundFileSink/dest/mrs_string/filename", filename);

    mrs_real srate = recordNet->getctrl("mrs_real/israte")->to<mrs_real>();
    mrs_natural nChannels = recordNet->getctrl("AudioSource/asrc/mrs_natural/nChannels")->to<mrs_natural>();
    cout << "AudioSource srate =  " << srate << endl; 
    cout << "AudioSource nChannels = " << nChannels << endl;
    mrs_natural inSamples = recordNet->getctrl("mrs_natural/inSamples")->to<mrs_natural>();


    mrs_natural iterations = (mrs_natural)((srate * length) / inSamples);

    cout << "Iterations = " << iterations << endl;


    for (mrs_natural t = 0; t < iterations; t++) 
    {
        recordNet->tick();
    }




}

void 
MarOscInWindow::createNetwork()
{
	MarSystemManager mng;

	// create the overall network
	net_ = mng.create("Series", "lpcSeries");
	net_->addMarSystem(mng.create("SoundFileSource", "src"));
	net_->addMarSystem(mng.create("Gain", "gain"));

	MarSystem* dest = mng.create("AudioSink", "dest");
	net_->addMarSystem(dest);
	mwr_ = new MarSystemQtWrapper(net_, true);

	initPtr_ = mwr_->getctrl("AudioSink/dest/mrs_bool/initAudio");
	fnamePtr_ = mwr_->getctrl("SoundFileSource/src/mrs_string/filename");

	gainPtr_ = mwr_->getctrl("Gain/gain/mrs_real/gain");

	mwr_->updctrl("Gain/gain/mrs_real/gain",1.0);
}