def javascript_state_changed(self, prev_state, state):
if not self._recording:
recordingPath = state.get('recordingPath', None)
if not recordingPath:
return
self.set_python_state(dict(status_message='Loading recording'))
mt.configDownloadFrom(state.get('download_from'))
X = SFMdaRecordingExtractor(dataset_directory=recordingPath,
download=True)
self.set_python_state(
dict(numChannels=X.get_num_channels(),
numTimepoints=X.get_num_frames(),
samplerate=X.get_sampling_frequency(),
status_message='Loaded recording.'))
self._recording = X
else:
X = self._recording
SR = state.get('segmentsRequested', {})
for key in SR.keys():
aa = SR[key]
if not self.get_python_state(key, None):
self.set_python_state(
dict(status_message='Loading segment {}'.format(key)))
data0 = self._load_data(aa['ds'], aa['ss'])
data0_base64 = _mda32_to_base64(data0)
state0 = {}
state0[key] = dict(data=data0_base64, ds=aa['ds'], ss=aa['ss'])
self.set_python_state(state0)
self.set_python_state(
dict(status_message='Loaded segment {}'.format(key)))
def run(self):
import tridesclous as tdc
tmpdir = Path(_get_tmpdir('tdc'))
recording = SFMdaRecordingExtractor(self.recording_dir)
params = {
'fullchain_kargs': {
'duration': 300.,
'preprocessor': {
'highpass_freq': self.freq_min,
'lowpass_freq': self.freq_max,
'smooth_size': 0,
'chunksize': 1024,
'lostfront_chunksize': 128,
'signalpreprocessor_engine': 'numpy',
'common_ref_removal': self.common_ref_removal,
},
'peak_detector': {
'peakdetector_engine': 'numpy',
'peak_sign': '-',
'relative_threshold': self.detection_threshold,
'peak_span': self.peak_span,
},
'noise_snippet': {
'nb_snippet': 300,
},
'extract_waveforms': {
'n_left': self.waveforms_n_left,
'n_right': self.waveforms_n_right,
'mode': 'rand',
'nb_max': 20000,
'align_waveform': self.align_waveform,
},
'clean_waveforms': {
'alien_value_threshold': self.alien_value_threshold,
},
},
'feat_method': 'peak_max',
'feat_kargs': {},
'clust_method': 'sawchaincut',
'clust_kargs': {
'kde_bandwith': 1.
},
}
# save prb file:
probe_file = tmpdir / 'probe.prb'
se.save_probe_file(recording, probe_file, format='spyking_circus')
# source file
if isinstance(recording,
se.BinDatRecordingExtractor) and recording._frame_first:
# no need to copy
raw_filename = recording._datfile
dtype = recording._timeseries.dtype.str
nb_chan = len(recording._channels)
offset = recording._timeseries.offset
else:
# save binary file (chunk by hcunk) into a new file
raw_filename = tmpdir / 'raw_signals.raw'
n_chan = recording.get_num_channels()
chunksize = 2**24 // n_chan
se.write_binary_dat_format(recording,
raw_filename,
time_axis=0,
dtype='float32',
chunksize=chunksize)
dtype = 'float32'
offset = 0
# initialize source and probe file
tdc_dataio = tdc.DataIO(dirname=str(tmpdir))
nb_chan = recording.get_num_channels()
tdc_dataio.set_data_source(
type='RawData',
filenames=[str(raw_filename)],
dtype=dtype,
sample_rate=recording.get_sampling_frequency(),
total_channel=nb_chan,
offset=offset)
tdc_dataio.set_probe_file(str(probe_file))
try:
sorting = tdc_helper(tmpdir=tmpdir,
params=params,
recording=recording)
SFMdaSortingExtractor.write_sorting(sorting=sorting,
save_path=self.firings_out)
except:
if os.path.exists(tmpdir):
if not getattr(self, '_keep_temp_files', False):
shutil.rmtree(tmpdir)
raise
if not getattr(self, '_keep_temp_files', False):
shutil.rmtree(tmpdir)
