105 lines
3.3 KiB
Python
105 lines
3.3 KiB
Python
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import os
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import asyncio
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from asyncio import Queue
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import logging
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from google.cloud import texttospeech
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from .compute_task import ComputeTask, ComputeTaskResult, ComputeTaskState, ComputeTaskType
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from .compute_node import ComputeNode
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logger = logging.getLogger(__name__)
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"""
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You need to set the GOOGLE_APPLICATION_CREDENTIALS environment variable when using it.
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see:https://cloud.google.com/text-to-speech/docs/before-you-begin
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"""
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class GoogleTextToSpeechNode(ComputeNode):
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_instance = None
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def __new__(cls, *args, **kwargs):
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if cls._instance is None:
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cls._instance = super(GoogleTextToSpeechNode, cls).__new__(cls)
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cls._instance.is_start = False
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return cls._instance
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def __init__(self):
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super().__init__()
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if self.is_start is True:
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logger.warn("GoogleTextToSpeechNode is already start")
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return
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self.is_start = True
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self.node_id = "google_text_to_speech_node"
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self.task_queue = Queue()
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self.client = texttospeech.TextToSpeechClient()
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self.start()
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def start(self):
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async def _run_task_loop():
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while True:
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task = await self.task_queue.get()
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try:
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result = self._run_task(task)
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if result is not None:
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task.state = ComputeTaskState.DONE
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task.result = result
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except Exception as e:
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logger.error(f"google_text_to_speech_node run task error: {e}")
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task.state = ComputeTaskState.ERROR
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task.result = ComputeTaskResult()
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task.result.set_from_task(task)
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task.result.worker_id = self.node_id
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task.result.result_str = str(e)
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asyncio.create_task(_run_task_loop())
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def _run_task(self, task: ComputeTask):
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task.state = ComputeTaskState.RUNNING
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language_code = task.params["language_code"]
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text = task.params["text"]
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synthesis_input = texttospeech.SynthesisInput(text=text)
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voice = texttospeech.VoiceSelectionParams(language_code=language_code,
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ssml_gender=texttospeech.SsmlVoiceGender.NEUTRAL)
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audio_config = texttospeech.AudioConfig(audio_encoding=texttospeech.AudioEncoding.MP3)
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response = self.client.synthesize_speech(input=synthesis_input, voice=voice, audio_config=audio_config)
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result = ComputeTaskResult()
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result.set_from_task(task)
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result.worker_id = self.node_id
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result.result = response.audio_content
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return result
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async def push_task(self, task: ComputeTask, proiority: int = 0):
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logger.info(f"google_text_to_speech_node push task: {task.display()}")
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self.task_queue.put_nowait(task)
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async def remove_task(self, task_id: str):
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pass
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def get_task_state(self, task_id: str):
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pass
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def display(self) -> str:
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return f"GoogleTextToSpeechNode: {self.node_id}"
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def get_capacity(self):
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return 0
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def is_support(self, task_type: ComputeTaskType) -> bool:
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if task_type == ComputeTaskType.TEXT_2_VOICE:
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return True
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return False
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def is_local(self) -> bool:
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return False
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