def __init__(self, devices={}, audio_config=None, features=_stub_features): if len(devices) <= 0: raise ValueError('Must have at least one RF device') gr.top_block.__init__(self, "SDR top block") self.__running = False # duplicate of GR state we can't reach, see __start_or_stop self.__has_a_useful_receiver = False # Configuration # TODO: device refactoring: Remove vestigial 'accessories' self._sources = {k: d for k, d in devices.iteritems() if d.can_receive()} self._accessories = accessories = {k: d for k, d in devices.iteritems() if not d.can_receive()} self.source_name = self._sources.keys()[0] # arbitrary valid initial value self.__rx_device_type = Enum({k: v.get_name() or k for (k, v) in self._sources.iteritems()}) # Audio early setup self.__audio_manager = AudioManager( # must be before contexts graph=self, audio_config=audio_config, stereo=features['stereo']) # Blocks etc. # TODO: device refactoring: remove 'source' concept (which is currently a device) # TODO: remove legacy no-underscore names, maybe get rid of self.source self.source = None self.__monitor_rx_driver = None self.monitor = MonitorSink( signal_type=SignalType(sample_rate=10000, kind='IQ'), # dummy value will be updated in _do_connect context=Context(self)) self.monitor.get_interested_cell().subscribe(self.__start_or_stop_later) self.__clip_probe = MaxProbe() # Receiver blocks (multiple, eventually) self._receivers = {} self._receiver_valid = {} # collections # TODO: No longer necessary to have these non-underscore names self.sources = CollectionState(self._sources) self.receivers = ReceiverCollection(self._receivers, self) self.accessories = CollectionState(accessories) self.__telemetry_store = TelemetryStore() # Flags, other state self.__needs_reconnect = [u'initialization'] self.__in_reconnect = False self.receiver_key_counter = 0 self.receiver_default_state = {} self.__cpu_calculator = LazyRateCalculator(lambda: time.clock()) # Initialization def hookup_vfo_callback(k, d): # function so as to not close over loop variable d.get_vfo_cell().subscribe(lambda: self.__device_vfo_callback(k)) for k, d in devices.iteritems(): hookup_vfo_callback(k, d) self._do_connect()
def setUp(self): self.tb = gr.top_block() self.p = AudioManager(graph=self.tb, audio_config=None, stereo=False)