Example #1
0
    def connect(self, max_attempts=None):
        if max_attempts is None:
            max_attempts = self.connect_max_attempts

        tries = 0
        while True:
            log.debug("Attempting to connect to JACK server...")
            status = jacklib.jack_status_t(0x0)
            self.client = jacklib.client_open(self.client_name,
                                              jacklib.JackNoStartServer,
                                              status)
            tries += 1

            if status.value:
                err = get_jack_status_error_string(status)
                if status.value & jacklib.JackNameNotUnique:
                    log.debug(err)
                elif status.value & jacklib.JackServerStarted:
                    # Should not happen, since we use the JackNoStartServer option
                    log.warning("Unexpected JACK status: %s", err)
                else:
                    log.warning("JACK connection error (attempt %i): %s",
                                tries, err)

            if self.client:
                break

            if max_attempts and tries >= max_attempts:
                log.error(
                    "Maximum number (%i) of connection attempts reached. Aborting.",
                    max_attempts)
                raise RuntimeError(err)

            log.debug("Waiting %.2f seconds to connect again...",
                      self.connect_interval)
            sleep(self.connect_interval)

        name = jacklib.get_client_name(self.client)
        if name is not None:
            self.client_name = name.decode()
        else:
            raise RuntimeError("Could not get JACK client name.")

        jacklib.on_shutdown(self.client, self.shutdown_callback, None)
        log.debug(
            "Client connected, name: %s UUID: %s",
            self.client_name,
            jacklib.client_get_uuid(self.client),
        )
        jacklib.set_port_registration_callback(self.client,
                                               self.port_reg_callback, None)
        jacklib.set_port_rename_callback(self.client,
                                         self.port_rename_callback, None)
        jacklib.set_property_change_callback(self.client,
                                             self.property_callback, None)
        jacklib.activate(self.client)
Example #2
0
    def set_registrations(self):
        if not self.jack_client:
            return

        jacklib.set_client_registration_callback(
            self.jack_client, self.jack_client_registration_callback, None)
        jacklib.set_port_registration_callback(
            self.jack_client, self.jack_port_registration_callback, None)
        jacklib.set_port_connect_callback(self.jack_client,
                                          self.jack_port_connect_callback,
                                          None)
        jacklib.set_port_rename_callback(self.jack_client,
                                         self.jack_port_rename_callback, None)
        jacklib.set_xrun_callback(self.jack_client, self.jack_xrun_callback,
                                  None)
        jacklib.set_buffer_size_callback(self.jack_client,
                                         self.jack_buffer_size_callback, None)
        jacklib.set_sample_rate_callback(self.jack_client,
                                         self.jack_sample_rate_callback, None)
        jacklib.set_property_change_callback(
            self.jack_client, self.jack_properties_change_callback, None)
        jacklib.on_shutdown(self.jack_client, self.jack_shutdown_callback,
                            None)
        jacklib.activate(self.jack_client)
                channels = int(chStr)

    # Init JACK client
    client = jacklib.client_open("cadence-aloop-daemon", jacklib.JackUseExactName, None)

    if not client:
        print("cadence-aloop-daemon is already running, delete \"/tmp/.cadence-aloop-daemon.x\" to close it")
        quit()

    if jacklib.JACK2:
        jacklib.set_client_registration_callback(client, client_registration_callback, None)

    jacklib.set_buffer_size_callback(client, buffer_size_callback, None)
    jacklib.set_sample_rate_callback(client, sample_rate_callback, None)
    jacklib.on_shutdown(client, shutdown_callback, None)
    jacklib.activate(client)

    # Quit when requested
    signal(SIGINT, signal_handler)
    signal(SIGTERM, signal_handler)

    # Get initial values
    sampleRate = jacklib.get_sample_rate(client)
    bufferSize = jacklib.get_buffer_size(client)

    # Create check file
    if not os.path.exists(checkFile):
        os.mknod(checkFile)

    # Keep running until told otherwise
    firstStart = True
Example #4
0
    if not jack_client:
        sys.stderr.write('Unable to make a jack client !\n')
        sys.exit()


    jacklib.set_port_registration_callback(jack_client,
                                           JackPortRegistrationCallback,
                                           None)
    jacklib.set_port_connect_callback(jack_client,
                                      JackPortConnectCallback,
                                      None)
    jacklib.set_port_rename_callback(jack_client,
                                     JackPortRenameCallback,
                                     None)
    jacklib.on_shutdown(jack_client, JackShutdownCallback, None)
    jacklib.activate(jack_client)

    signaler = Signaler()
    signaler.port_added.connect(portAdded)
    signaler.port_removed.connect(portRemoved)
    signaler.port_renamed.connect(portRenamed)
    signaler.connection_added.connect(connectionAdded)
    signaler.connection_removed.connect(connectionRemoved)
    signaler.server_sends_open.connect(openFile)
    signaler.server_sends_save.connect(saveFile)

    #makeMayConnections()

    NSMServer = nsm_client.NSMThread('ray-jackpatch', signaler,
                                     daemon_address, False)
    NSMServer.start()
Example #5
0
  def __init__(self,configd=None):
    """Create a VNA object"""

    if configd is None: configd = config.__dict__

    self.printlevel = configd['printlevel']
    self.fftn = configd['fftn']
    self.amp = configd['amp']
    self.warmuptime = configd['warmuptime']
    self.cooldowntime = configd['cooldowntime']
   
    self.docapture = threading.Event()
    self.docapture.set()

    self.xrun = threading.Event()
    self.xrun.clear()

    self.startframe = 0

    #self.jackclient = jacklib.client_open("pysdrvna", jacklib.JackNoStartServer | jacklib.JackSessionID, None)
    self.jackclient = jacklib.client_open("pysdrvna", jacklib.JackSessionID, None)
    
    try:
      self.jackclient.contents
    except:
      print("Problems with Jack")
      return
      #raise

    self.iI = jacklib.port_register(self.jackclient,"iI", jacklib.JACK_DEFAULT_AUDIO_TYPE, jacklib.JackPortIsInput, 0)
    self.iQ = jacklib.port_register(self.jackclient,"iQ", jacklib.JACK_DEFAULT_AUDIO_TYPE, jacklib.JackPortIsInput, 0)    

    self.oI = jacklib.port_register(self.jackclient,"oI", jacklib.JACK_DEFAULT_AUDIO_TYPE, jacklib.JackPortIsOutput, 0)
    self.oQ = jacklib.port_register(self.jackclient,"oQ", jacklib.JACK_DEFAULT_AUDIO_TYPE, jacklib.JackPortIsOutput, 0)
   
    jacklib.set_process_callback(self.jackclient, self.JackProcess, 0)
    jacklib.set_xrun_callback(self.jackclient, self.JackXrun, 0)

    jacklib.activate(self.jackclient)
   
    jacklib.connect(self.jackclient,"pysdrvna:oQ", configd['outQ'])
    jacklib.connect(self.jackclient,"pysdrvna:oI", configd['outI'])    
    
    jacklib.connect(self.jackclient,configd['inQ'],"pysdrvna:iQ")
    jacklib.connect(self.jackclient,configd['inI'],"pysdrvna:iI") 
    
    self.Sr = float(jacklib.get_sample_rate(self.jackclient))
    self.dt = 1.0/self.Sr
      
    ## Align frequency to nearest bin
    self.fftbin = int(round((configd['freq']/self.Sr)*self.fftn))      
    self.freq = (float(self.fftbin)/self.fftn) * self.Sr
    
    ## Windowing function
    #self.fftwindow = np.blackman(self.fftn)
    self.fftwindow = np.hanning(self.fftn)
    #self.fftwindow = np.kaiser(self.fftn,14)
    #self.fftwindow = np.hamming(self.fftn)
    #self.fftwindow = np.bartlett(self.fftn)
    #self.fftwindow = None
      
    ## Latency settings
    jlr = jacklib.jack_latency_range_t()
    jacklib.port_get_latency_range(self.oI,jacklib.JackPlaybackLatency,jlr)
    self.minrtframes = jlr.min
    jacklib.port_get_latency_range(self.iI,jacklib.JackCaptureLatency,jlr)
    self.minrtframes += jlr.min
 
    # The above code does not always work
    # Reasonable estimate is 3 times the buffer size
    ## Compute initial array length
    self.buffersz = int(jacklib.get_buffer_size(self.jackclient))
    if self.minrtframes < (3*self.buffersz):
        self.minrtframes = 3 * self.buffersz


    ## rtframes is the round trip audio latency, or when the received audio signal will start    
    self.rtframes = configd['rtframes'] if configd['rtframes'] else self.minrtframes
    ## delta from rtframes to phase shift sync in frames
    self.rtframes2sync = configd['rtframes2sync']
    ## delta from phase shift sync to fft start in frames
    self.sync2fft = configd['sync2fft']
    ## delta from end of fft to end of audio
    self.fft2end = configd['fft2end']


    if configd['rtframes'] is None:
        ## Loose fit if estimating based on minrtframes
        buffers, remainder = divmod((2*self.rtframes) + self.rtframes2sync + self.sync2fft + self.fftn + self.fft2end,self.buffersz)
    else:
        ## Tight fit if rtframes is defined
        buffers, remainder = divmod(self.rtframes + self.rtframes2sync + self.sync2fft + self.fftn + self.fft2end,self.buffersz)
  
    if remainder > 0: buffers = buffers + 1
    self.synci = self.rtframes
    self.InitJackArrays(self.freq,buffers*self.buffersz)
    
    self.fftia = pyfftw.n_byte_align_empty(self.fftn, 16, 'complex128')
    self.fftoa = pyfftw.n_byte_align_empty(self.fftn, 16, 'complex128')
    ## Create FFT Plan
    self.fft = pyfftw.FFTW(self.fftia,self.fftoa)

    self.OpenSoftRock()
    self.Info()
    if not client:
        print(
            "cadence-aloop-daemon is already running, delete \"/tmp/.cadence-aloop-daemon.x\" to close it"
        )
        quit()

    if jacklib.JACK2:
        jacklib.set_client_registration_callback(client,
                                                 client_registration_callback,
                                                 None)

    jacklib.set_buffer_size_callback(client, buffer_size_callback, None)
    jacklib.set_sample_rate_callback(client, sample_rate_callback, None)
    jacklib.on_shutdown(client, shutdown_callback, None)
    jacklib.activate(client)

    # Quit when requested
    signal(SIGINT, signal_handler)
    signal(SIGTERM, signal_handler)

    # Get initial values
    sampleRate = jacklib.get_sample_rate(client)
    bufferSize = jacklib.get_buffer_size(client)

    # Create check file
    if not os.path.exists(checkFile):
        os.mknod(checkFile)

    # Keep running until told otherwise
    firstStart = True
Example #7
0
                    if jack_midi_in_data.full():
                        break

            del event
    except Exception as e:
        print e
    return 0


if __name__ == "__main__":
    # Start jack
    jack_client = jacklib.client_open("Floppy Drive", jacklib.NullOption, 0)
    jack_midi_in_port = jacklib.port_register(jack_client, "midi", jacklib.DEFAULT_MIDI_TYPE, jacklib.PortIsInput, 0)
    jacklib.set_process_callback(jack_client, jack_process_callback, 0)

    jacklib.activate(jack_client)

    floppy = Floppy(port=sys.argv[1], reset=True)

    noteplaying = None
    while 1:
        try:
            mode, noteid, velo = jack_midi_in_data.get(True, 1)
            note = Note(noteid)

            if (mode & MIDI_MASK) == MIDI_NOTEON:
                floppy.play(note)
                noteplaying = note

            elif (mode & MIDI_MASK) == MIDI_NOTEOFF:
                if note == noteplaying: