49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
import time
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from platypush.backend import Backend
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from platypush.context import get_plugin
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from platypush.plugins.stt.deepspeech import SttDeepspeechPlugin
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class SttDeepspeechBackend(Backend):
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"""
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Backend for the Mozilla Deepspeech speech-to-text engine plugin. Set this plugin to ``enabled`` if you
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want to run the speech-to-text engine continuously instead of programmatically using
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``start_detection`` and ``stop_detection``.
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Requires:
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- The :class:`platypush.plugins.stt.deepspeech.SttDeepspeechPlugin` plugin configured and its dependencies
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installed, as well as the language model files.
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"""
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def __init__(self, retry_sleep: float = 5.0, *args, **kwargs):
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"""
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:param retry_sleep: Number of seconds the backend will wait on failure before re-initializing the plugin
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(default: 5 seconds).
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"""
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super().__init__(*args, **kwargs)
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self.retry_sleep = retry_sleep
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def run(self):
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super().run()
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self.logger.info('Starting Mozilla Deepspeech speech-to-text backend')
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while not self.should_stop():
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try:
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plugin: SttDeepspeechPlugin = get_plugin('stt.deepspeech')
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with plugin:
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plugin.start_detection()
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# noinspection PyProtectedMember
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plugin._detection_thread.join()
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except Exception as e:
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self.logger.exception(e)
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self.logger.warning('Deepspeech backend encountered an unexpected error, retrying in {} seconds'.
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format(self.retry_sleep))
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time.sleep(self.retry_sleep)
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# vim:sw=4:ts=4:et:
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