49 lines
1.2 KiB
Python
49 lines
1.2 KiB
Python
#encoding = utf8
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import threading
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from eventbus import EventBus
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from .asr_observer import AsrObserver
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class AsrBase:
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def __init__(self):
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self._hot_words_file = ''
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self._sample_rate = 32000
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self._samples_per_read = 100
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self._observers = []
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EventBus().register('stop', self._on_stop)
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self._stop_event = threading.Event()
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self._stop_event.set()
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self._thread = threading.Thread(target=self._recognize_loop)
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self._thread.start()
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def __del__(self):
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EventBus().unregister('stop', self._on_stop)
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def _on_stop(self, *args, **kwargs):
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self.stop()
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def _recognize_loop(self):
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pass
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def _notify_process(self, message: str):
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for observer in self._observers:
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observer.process(message)
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def _notify_complete(self, message: str):
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for observer in self._observers:
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observer.completed(message)
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def stop(self):
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self._stop_event.clear()
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self._thread.join()
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def attach(self, observer: AsrObserver):
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self._observers.append(observer)
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def detach(self, observer: AsrObserver):
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self._observers.remove(observer)
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