Improve noise level machinery

src/spikeinterface/core/analyzer_extension_core.py

@@ -691,12 +691,13 @@ class ComputeNoiseLevels(AnalyzerExtension):
     need_recording = True
     use_nodepipeline = False
     need_job_kwargs = False
+    need_backward_compatibility_on_load = True
 
     def __init__(self, sorting_analyzer):
         AnalyzerExtension.__init__(self, sorting_analyzer)
 
-    def _set_params(self, num_chunks_per_segment=20, chunk_size=10000, seed=None):
-        params = dict(num_chunks_per_segment=num_chunks_per_segment, chunk_size=chunk_size, seed=seed)
+    def _set_params(self, **noise_level_params):
+        params = noise_level_params.copy()
         return params
 
     def _select_extension_data(self, unit_ids):
@@ -717,6 +718,15 @@ def _run(self, verbose=False):
     def _get_data(self):
         return self.data["noise_levels"]
 
+    def _handle_backward_compatibility_on_load(self):
+        # The old parameters used to be params=dict(num_chunks_per_segment=20, chunk_size=10000, seed=None)
+        # now it is handle more explicitly using random_slices_kwargs=dict()
+        for key in ("num_chunks_per_segment", "chunk_size", "seed"):
+            if key in self.params:
+                if "random_slices_kwargs" not in self.params:
+                    self.params["random_slices_kwargs"] = dict()
+                self.params["random_slices_kwargs"][key] = self.params.pop(key)
+
 
 register_result_extension(ComputeNoiseLevels)
 compute_noise_levels = ComputeNoiseLevels.function_factory()

src/spikeinterface/core/job_tools.py

@@ -185,6 +185,22 @@ def ensure_n_jobs(recording, n_jobs=1):
     return n_jobs
 
 
+def chunk_duration_to_chunk_size(chunk_duration, recording):
+    if isinstance(chunk_duration, float):
+        chunk_size = int(chunk_duration * recording.get_sampling_frequency())
+    elif isinstance(chunk_duration, str):
+        if chunk_duration.endswith("ms"):
+            chunk_duration = float(chunk_duration.replace("ms", "")) / 1000.0
+        elif chunk_duration.endswith("s"):
+            chunk_duration = float(chunk_duration.replace("s", ""))
+        else:
+            raise ValueError("chunk_duration must ends with s or ms")
+        chunk_size = int(chunk_duration * recording.get_sampling_frequency())
+    else:
+        raise ValueError("chunk_duration must be str or float")
+    return chunk_size
+
+
 def ensure_chunk_size(
     recording, total_memory=None, chunk_size=None, chunk_memory=None, chunk_duration=None, n_jobs=1, **other_kwargs
 ):
@@ -231,18 +247,7 @@ def ensure_chunk_size(
         num_channels = recording.get_num_channels()
         chunk_size = int(total_memory / (num_channels * n_bytes * n_jobs))
     elif chunk_duration is not None:
-        if isinstance(chunk_duration, float):
-            chunk_size = int(chunk_duration * recording.get_sampling_frequency())
-        elif isinstance(chunk_duration, str):
-            if chunk_duration.endswith("ms"):
-                chunk_duration = float(chunk_duration.replace("ms", "")) / 1000.0
-            elif chunk_duration.endswith("s"):
-                chunk_duration = float(chunk_duration.replace("s", ""))
-            else:
-                raise ValueError("chunk_duration must ends with s or ms")
-            chunk_size = int(chunk_duration * recording.get_sampling_frequency())
-        else:
-            raise ValueError("chunk_duration must be str or float")
+        chunk_size = chunk_duration_to_chunk_size(chunk_duration, recording)
     else:
         # Edge case to define single chunk per segment for n_jobs=1.
         # All chunking parameters equal None mean single chunk per segment
@@ -382,11 +387,13 @@ def __init__(
                 f"chunk_duration={chunk_duration_str}",
             )
 
-    def run(self):
+    def run(self, all_chunks=None):
         """
         Runs the defined jobs.
         """
-        all_chunks = divide_recording_into_chunks(self.recording, self.chunk_size)
+
+        if all_chunks is None:
+            all_chunks = divide_recording_into_chunks(self.recording, self.chunk_size)
 
         if self.handle_returns:
             returns = []