252 lines
9.0 KiB
Python
252 lines
9.0 KiB
Python
import asyncio
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from dashscope.audio.asr import TranslationRecognizerChat
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from dashscope.audio.asr import TranscriptionResult
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from dashscope.audio.asr import TranslationRecognizerCallback
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from config import settings
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from interfaces.asr import ASR
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from implementations.base_service import BaseService
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from services.interrupt_handler import interrupt_handler
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from utils.logger import session_logger
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class GummyCallback(TranslationRecognizerCallback):
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def __init__(self, device_id, session_id):
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self.device_id = device_id
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self.session_id = session_id
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self.transcript = ""
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self.transcript_event = asyncio.Event()
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self.received_result = False
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self.error_message = None
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self.is_closed = False
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self.session_end = False
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def on_open(self) -> None:
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session_logger.info(self.device_id, self.session_id, "Gummy ASR连接建立成功")
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def on_event(
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self,
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request_id,
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transcription_result: TranscriptionResult,
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translation_result,
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usage,
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) -> None:
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if transcription_result:
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if transcription_result.is_sentence_end:
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self.transcript = transcription_result.text
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self.received_result = True
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session_logger.info(
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self.device_id,
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self.session_id,
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f"Gummy ASR完整句子: {self.transcript}",
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)
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self.transcript_event.set()
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else:
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self.transcript = transcription_result.text
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def on_complete(self) -> None:
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session_logger.info(self.device_id, self.session_id, "Gummy ASR识别完成")
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self.session_end = True
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self.transcript_event.set()
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def on_error(self, result) -> None:
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self.error_message = str(result)
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session_logger.error(
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self.device_id, self.session_id, f"Gummy ASR错误: {self.error_message}"
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)
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self.transcript_event.set()
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def on_close(self) -> None:
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session_logger.info(self.device_id, self.session_id, "Gummy ASR连接已关闭")
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self.is_closed = True
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self.transcript_event.set()
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class AliyunASR(ASR, BaseService):
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def __init__(self, selected_role=None):
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BaseService.__init__(self, "asr", selected_role)
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self.api_key = settings.aliyun_api_key
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self.vocabulary_id = settings.aliyun_vocabulary_id
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self.connected = False
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self.transcript = ""
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self.device_id = "unknown"
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self.session_id = "unknown"
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self.sample_rate = 16000
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self.audio_buffer = bytearray()
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self.translator = None
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self.callback = None
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self.buffer_size = 3200 # 约100ms的音频，按16000采样率计算
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self.max_end_silence = 2000 # 设为2000ms，允许更长的停顿
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async def connect(self):
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try:
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if self.connected and self.translator:
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session_logger.info(
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self.device_id, self.session_id, "Gummy ASR连接已存在，复用当前连接"
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)
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return
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self.transcript = ""
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self.audio_buffer = bytearray()
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self.callback = GummyCallback(self.device_id, self.session_id)
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self.translator = TranslationRecognizerChat(
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model="gummy-chat-v1",
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format="mp3",
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sample_rate=self.sample_rate,
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callback=self.callback,
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transcription_enabled=True,
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source_language="auto",
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semantic_punctuation_enabled=False,
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max_end_silence=self.max_end_silence,
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api_key=self.api_key,
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vocabulary_id=self.vocabulary_id,
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)
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self.translator.start()
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self.callback.transcript_event.clear()
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self.connected = True
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except Exception as e:
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session_logger.error(
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self.device_id, self.session_id, f"建立Gummy ASR连接失败: {str(e)}"
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)
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self.connected = False
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if self.translator:
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try:
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self.translator.stop()
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except:
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pass
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self.translator = None
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async def send_audio(self, audio_data: bytes):
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if not self.connected or not self.translator:
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session_logger.error(self.device_id, self.session_id, "Gummy ASR连接未建立")
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return
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try:
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self.audio_buffer.extend(audio_data)
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while len(self.audio_buffer) >= self.buffer_size:
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chunk = bytes(self.audio_buffer[: self.buffer_size])
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self.audio_buffer = self.audio_buffer[self.buffer_size :]
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if self.device_id and self.session_id:
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session_key = (self.device_id, self.session_id)
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if interrupt_handler.is_interrupted(session_key):
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session_logger.info(
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self.device_id,
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self.session_id,
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"检测到中断，停止发送音频数据",
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)
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return
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try:
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self.translator.send_audio_frame(chunk)
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except Exception as e:
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session_logger.error(
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self.device_id,
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self.session_id,
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f"发送音频帧到Gummy ASR出错: {str(e)}",
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)
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except Exception as e:
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session_logger.error(
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self.device_id, self.session_id, f"发送音频到Gummy ASR出错: {str(e)}"
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)
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async def send_end(self):
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if not self.connected or not self.translator:
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session_logger.error(
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self.device_id, self.session_id, "Gummy ASR连接未建立，无法发送结束信号"
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)
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return
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try:
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if len(self.audio_buffer) > 0:
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chunk = bytes(self.audio_buffer)
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self.audio_buffer = bytearray()
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self.translator.send_audio_frame(chunk)
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session_logger.info(
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self.device_id,
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self.session_id,
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"客户端发送结束包，等待Gummy ASR处理完毕",
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)
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loop = asyncio.get_running_loop()
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await loop.run_in_executor(None, lambda: self._safe_stop_translator())
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except Exception as e:
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session_logger.error(
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self.device_id,
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self.session_id,
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f"发送结束信号到Gummy ASR出错: {str(e)}",
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)
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async def receive_results(self):
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if not self.connected:
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session_logger.error(
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self.device_id, self.session_id, "Gummy ASR连接未建立，无法接收结果"
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)
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return
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try:
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try:
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await asyncio.wait_for(
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self.callback.transcript_event.wait(), timeout=0.5
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)
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except asyncio.TimeoutError:
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session_logger.warning(
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self.device_id,
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self.session_id,
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"接收Gummy ASR结果超时，使用最后的中间结果",
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)
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if self.callback.received_result or self.callback.transcript:
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self.transcript = self.callback.transcript
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except Exception as e:
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session_logger.error(
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self.device_id, self.session_id, f"接收Gummy ASR结果出错: {str(e)}"
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)
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return self.transcript
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async def close(self):
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if self.connected:
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try:
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if self.translator is not None:
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try:
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self.translator.stop()
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except Exception as e:
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if "has stopped" not in str(e):
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session_logger.warning(
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self.device_id,
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self.session_id,
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f"关闭Gummy translator出错: {str(e)}"
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)
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self.translator = None
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self.connected = False
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session_logger.info(
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self.device_id, self.session_id, "Gummy ASR连接已关闭"
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)
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except Exception as e:
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session_logger.error(
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self.device_id, self.session_id, f"关闭Gummy ASR连接出错: {str(e)}"
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)
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def _safe_stop_translator(self):
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"""安全停止translator，忽略已停止的异常"""
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try:
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if self.translator:
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self.translator.stop()
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except Exception as e:
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if "has stopped" not in str(e):
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session_logger.warning(
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self.device_id,
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self.session_id,
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f"停止translator时出现非标准错误: {str(e)}",
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)
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return None
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