def run(cmd_queue, filehandle, sampling_frequency, calibration):
r = DataRecorder(filehandle, sampling_frequency, calibration)
b = StreamBuffer(int(sampling_frequency), [], sampling_frequency)
b.calibration_set(calibration.current_offset, calibration.current_gain,
calibration.voltage_offset, calibration.voltage_gain)
while True:
cmd, args = cmd_queue.get()
if cmd == 'stream_notify':
raw_data, voltage_range = args
b.voltage_range = voltage_range
b.insert_raw(raw_data)
b.process()
r.stream_notify(b)
elif cmd == 'close':
r.close()
break
def _export_jls(self, data):
cfg = self._cfg
sampling_frequency = data.sample_frequency
stream_buffer = StreamBuffer(sampling_frequency * 2, [],
sampling_frequency=sampling_frequency)
stream_buffer.calibration_set(data.calibration.current_offset,
data.calibration.current_gain,
data.calibration.voltage_offset,
data.calibration.voltage_gain)
stream_buffer.voltage_range = data.cmdp['Plugins/#state/voltage_range']
data_recorder = DataRecorder(cfg['filename'],
calibration=data.calibration.data,
sampling_frequency=sampling_frequency)
data_recorder.stream_notify(stream_buffer)
try:
for block in data:
log.info('export_jls iteration')
stream_buffer.insert_raw(block['signals']['raw']['value'])
stream_buffer.process()
data_recorder.stream_notify(stream_buffer)
finally:
data_recorder.close()
def test_voltage_range(self):
b = StreamBuffer(0.2, [], 1000.0)
self.assertEqual(0, b.voltage_range)
b.voltage_range = 1
self.assertEqual(1, b.voltage_range)
