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)
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
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()
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
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:
