def get_sampling_rate_labels(self):
rates = []
for rate in AvcConnection.SAMPLING_RATES:
if not AvcConnection.ask_plug_signal_format(
self.unit.fcp, 'input', 0, rate):
continue
if not AvcConnection.ask_plug_signal_format(
self.unit.fcp, 'output', 0, rate):
continue
rates.append(rate)
return rates
def _parse_supported_sampling_rates(self):
sampling_rates = {}
playback = []
capture = []
# Assume that PCM playback is available for all of models.
for rate in AvcConnection.SAMPLING_RATES:
if AvcConnection.ask_plug_signal_format(self.fcp, 'input', 0, rate):
playback.append(rate)
sleep(0.02)
# PCM capture is not always available depending on models.
for rate in AvcConnection.SAMPLING_RATES:
if AvcConnection.ask_plug_signal_format(self.fcp, 'output', 0, rate):
capture.append(rate)
self._playback_only = (len(capture) == 0)
for rate in AvcConnection.SAMPLING_RATES:
if rate in playback or rate in capture:
sampling_rates[rate] = True
return sampling_rates