Support for multi-threading about opensmile HOT 5 CLOSED

from threading import Thread

import numpy as np
import opensmile

signals = np.random.random_sample(size=(2, 80000)).astype(np.float32)

def test(i):
    smile = opensmile.Smile(logfile=f"smile_{i}.log")
    smile(signals[i], 16000)
    del smile

threads = [Thread(target=test, args=(i,)) for i in range(2)]
for t in threads:
    t.start()
for t in threads:
    t.join()

Exception in thread Thread-2:
Traceback (most recent call last):
  File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.8/threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "test.py", line 10, in test
    smile = opensmile.Smile(logfile=f"smile_{i}.log")
  File "/home/akee511/src/emotion/.venv/lib/python3.8/site-packages/audobject/core/decorator.py", line 109, in wrapper
    func(self, *args, **kwargs)
  File "/home/akee511/src/emotion/.venv/lib/python3.8/site-packages/audeer/core/utils.py", line 174, in new_func
    return func(*args, **kwargs)
  File "/home/akee511/src/emotion/.venv/lib/python3.8/site-packages/opensmile/core/smile.py", line 173, in __init__
    self._feature_names(),
  File "/home/akee511/src/emotion/.venv/lib/python3.8/site-packages/opensmile/core/smile.py", line 333, in _feature_names
    smile = self._smile(options=options)
  File "/home/akee511/src/emotion/.venv/lib/python3.8/site-packages/opensmile/core/smile.py", line 424, in _smile
    smile.initialize(
  File "/home/akee511/src/emotion/.venv/lib/python3.8/site-packages/opensmile/core/SMILEapi.py", line 240, in initialize
    self._check_smile_result(smileapi.smile_initialize(self._smileobj,
  File "/home/akee511/src/emotion/.venv/lib/python3.8/site-packages/opensmile/core/SMILEapi.py", line 478, in _check_smile_result
    raise OpenSmileException(result)
opensmile.core.SMILEapi.OpenSmileException: Code: 6