def write_recording(recording,
save_path,
initial_sorting_fn,
dtype='float32',
verbose=True,
**job_kwargs):
""" Convert and save the recording extractor to SHYBRID format
Parameters
----------
recording: RecordingExtractor
The recording extractor to be converted and saved
save_path: str
Full path to desired target folder
initial_sorting_fn: str
Full path to the initial sorting csv file (can also be generated
using write_sorting static method from the SHYBRIDSortingExtractor)
dtype: dtype
Type of the saved data. Default float32.
**write_binary_kwargs: keyword arguments for write_to_binary_dat_format() function
"""
assert HAVE_SBEX, SHYBRIDRecordingExtractor.installation_mesg
assert recording.get_num_segments(
) == 1, "SHYBRID can only write single segment recordings"
save_path = Path(save_path)
recording_name = 'recording.bin'
probe_name = 'probe.prb'
params_name = 'recording.yml'
# location information has to be present in order for shybrid to
# be able to operate on the recording
if recording.get_channel_locations() is None:
raise GeometryNotLoadedError("Channel locations were not found")
# write recording
recording_fn = (save_path / recording_name).absolute()
write_binary_recording(recording,
files_path=recording_fn,
dtype=dtype,
verbose=verbose,
**job_kwargs)
# write probe file
probe_fn = (save_path / probe_name).absolute()
probegroup = recording.get_probegroup()
write_prb(probe_fn,
probegroup,
total_nb_channels=recording.get_num_channels())
# create parameters file
parameters = dict(clusters=initial_sorting_fn,
data=dict(dtype=dtype,
fs=str(recording.get_sampling_frequency()),
order='F',
probe=str(probe_fn)))
# write parameters file
parameters_fn = (save_path / params_name).absolute()
with parameters_fn.open('w') as fp:
yaml.dump(parameters, fp)
def _setup_recording(cls, recording, output_folder, params, verbose):
source_dir = Path(__file__).parent
# alias to params
p = params
experiment_name = output_folder / 'recording'
# save prb file
prb_file = output_folder / 'probe.prb'
probegroup = recording.get_probegroup()
write_prb(prb_file, probegroup, radius=p['adjacency_radius'])
# source file
if isinstance(
recording,
BinaryRecordingExtractor) and recording._kwargs['offset'] == 0:
# no need to copy
raw_filename = str(
Path(recording._kwargs['files_path'][0]).resolve())
dtype = recording._kwargs['dtype']
else:
# save binary file (chunk by hcunk) into a new file
raw_filename = output_folder / 'recording.dat'
dtype = 'int16'
BinaryRecordingExtractor.write_recording(
recording,
files_path=[raw_filename],
dtype='int16',
total_memory=p["total_memory"],
n_jobs=p["n_jobs_bin"],
verbose=False,
progress_bar=verbose)
if p['detect_sign'] < 0:
detect_sign = 'negative'
elif p['detect_sign'] > 0:
detect_sign = 'positive'
else:
detect_sign = 'both'
# set up klusta config file
with (source_dir / 'config_default.prm').open('r') as f:
klusta_config = f.readlines()
# Note: should use format with dict approach here
klusta_config = ''.join(klusta_config).format(
experiment_name, prb_file, raw_filename,
float(recording.get_sampling_frequency()),
recording.get_num_channels(), "'{}'".format(dtype),
p['threshold_strong_std_factor'], p['threshold_weak_std_factor'],
"'" + detect_sign + "'", p['extract_s_before'],
p['extract_s_after'], p['n_features_per_channel'],
p['pca_n_waveforms_max'], p['num_starting_clusters'])
with (output_folder / 'config.prm').open('w') as f:
f.writelines(klusta_config)
def _setup_recording(cls, recording, output_folder, params, verbose):
p = params
if p['detect_sign'] < 0:
detect_sign = 'negative'
elif p['detect_sign'] > 0:
detect_sign = 'positive'
else:
detect_sign = 'both'
if p['merge_spikes']:
auto = p['auto_merge']
else:
auto = 0
source_dir = Path(__file__).parent
# save prb file
# note: only one group here, the split is done in basesorter
prb_file = output_folder / 'probe.prb'
probegroup = recording.get_probegroup()
write_prb(prb_file,
probegroup,
total_nb_channels=recording.get_num_channels(),
radius=p['adjacency_radius'])
# save binary file
file_name = 'recording'
# We should make this copy more efficient with chunks
n_chan = recording.get_num_channels()
n_frames = recording.get_num_frames(segment_index=0)
chunk_size = 2**24 // n_chan
npy_file = str(output_folder / file_name) + '.npy'
data_file = open_memmap(npy_file,
shape=(n_frames, n_chan),
dtype=np.float32,
mode='w+')
nb_chunks = n_frames // chunk_size
for i in range(nb_chunks + 1):
start_frame = i * chunk_size
end_frame = min((i + 1) * chunk_size, n_frames)
data = recording.get_traces(start_frame=start_frame,
end_frame=end_frame).astype('float32')
data_file[start_frame:end_frame, :] = data
sample_rate = float(recording.get_sampling_frequency())
# set up spykingcircus config file
with (source_dir / 'config_default.params').open('r') as f:
circus_config = f.readlines()
circus_config = ''.join(circus_config).format(
sample_rate, prb_file, p['template_width_ms'],
p['detect_threshold'], detect_sign, p['filter'],
p['whitening_max_elts'], p['clustering_max_elts'], auto)
with (output_folder / (file_name + '.params')).open('w') as f:
f.writelines(circus_config)
def test_prb():
probegroup = read_prb(folder / 'dummy.prb')
with open('two_tetrodes.prb', 'w') as f:
f.write(prb_two_tetrodes)
two_tetrode = read_prb('two_tetrodes.prb')
assert len(two_tetrode.probes) == 2
assert two_tetrode.probes[0].get_electrode_count() == 4
write_prb('two_tetrodes_written.prb', two_tetrode)
two_tetrode_back = read_prb('two_tetrodes_written.prb')
def _setup_recording(cls, recording, output_folder, params, verbose):
import tridesclous as tdc
# save prb file
probegroup = recording.get_probegroup()
prb_file = output_folder / 'probe.prb'
write_prb(prb_file, probegroup)
num_seg = recording.get_num_segments()
sr = recording.get_sampling_frequency()
# source file
if isinstance(recording, BinaryRecordingExtractor
) and recording._kwargs['time_axis'] == 0:
# no need to copy
kwargs = recording._kwargs
file_paths = kwargs['file_paths']
dtype = kwargs['dtype']
num_chan = kwargs['num_chan']
file_offset = kwargs['file_offset']
else:
if verbose:
print('Local copy of recording')
# save binary file (chunk by chunk) into a new file
num_chan = recording.get_num_channels()
dtype = recording.get_dtype().str
file_paths = [
str(output_folder / f'raw_signals_{i}.raw')
for i in range(num_seg)
]
BinaryRecordingExtractor.write_recording(
recording,
file_paths=file_paths,
dtype=dtype,
total_memory=params["total_memory"],
n_jobs=params["n_jobs_bin"],
verbose=False,
progress_bar=verbose)
file_offset = 0
# initialize source and probe file
tdc_dataio = tdc.DataIO(dirname=str(output_folder))
tdc_dataio.set_data_source(type='RawData',
filenames=file_paths,
dtype=dtype,
sample_rate=float(sr),
total_channel=int(num_chan),
offset=int(file_offset))
tdc_dataio.set_probe_file(str(prb_file))
if verbose:
print(tdc_dataio)
