119 lines
4.3 KiB
Python
119 lines
4.3 KiB
Python
# websocket_service.py
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import uuid
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from fastapi import APIRouter, WebSocket, WebSocketDisconnect
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from typing import Set
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from aip import AipSpeech
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from app.constants.asr import APP_ID, API_KEY, SECRET_KEY
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import json
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from . import tts
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from .voice_conversation import process_voice_conversation
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router = APIRouter()
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active_connections: Set[WebSocket] = set()
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asr_client = AipSpeech(APP_ID, API_KEY, SECRET_KEY)
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async def asr_buffer(buffer_data: bytes) -> str:
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result = asr_client.asr(buffer_data, 'pcm', 16000, {'dev_pid': 1537})
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if result.get('err_msg') == 'success.':
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return result.get('result')[0]
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else:
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return '语音转换失败'
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async def broadcast_online_count():
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data = {"online_count": len(active_connections), 'type': 'count'}
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to_remove = set()
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for ws in active_connections:
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try:
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await ws.send_json(data)
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except Exception:
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to_remove.add(ws)
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for ws in to_remove:
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active_connections.remove(ws)
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@router.websocket("/websocket")
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async def websocket_online_count(websocket: WebSocket):
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await websocket.accept()
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active_connections.add(websocket)
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await broadcast_online_count()
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temp_buffer = bytes()
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try:
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while True:
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message = await websocket.receive()
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if message.get("type") == "websocket.receive":
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if "bytes" in message and message["bytes"]:
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temp_buffer += message["bytes"]
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elif "text" in message and message["text"]:
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try:
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data = json.loads(message["text"])
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except Exception:
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continue
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msg_type = data.get("type")
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if msg_type == "ping":
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await websocket.send_json({"online_count": len(active_connections), "type": "count"})
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elif msg_type == "asr_end":
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asr_text = await asr_buffer(temp_buffer)
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# 从data中获取messageId，如果不存在则生成一个新的ID
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message_id = data.get("messageId", "voice_" + str(uuid.uuid4()))
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if data.get("voiceConversation"):
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await process_voice_conversation(websocket, asr_text, message_id)
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else:
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await websocket.send_json({"type": "asr_result", "result": asr_text})
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temp_buffer = bytes()
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# TTS处理
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elif msg_type == "tts_text":
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message_id = data.get("messageId")
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text = data.get("text", "")
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if not message_id:
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await websocket.send_json({
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"type": "tts_error",
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"message": "缺少messageId参数"
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})
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continue
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print(f"收到TTS文本请求 [{message_id}]: {text}")
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try:
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await tts.handle_tts_text(websocket, message_id, text)
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except Exception as e:
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print(f"TTS文本处理异常 [{message_id}]: {e}")
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await websocket.send_json({
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"type": "tts_error",
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"messageId": message_id,
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"message": f"TTS处理失败: {str(e)}"
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})
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elif msg_type == "tts_cancel":
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message_id = data.get("messageId")
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if message_id:
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print(f"收到TTS取消请求 [{message_id}]")
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try:
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await tts.handle_tts_cancel(websocket, message_id)
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except Exception as e:
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print(f"TTS取消处理异常 [{message_id}]: {e}")
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except WebSocketDisconnect:
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pass
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except Exception as e:
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print(f"WebSocket异常: {e}")
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finally:
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# 清理资源
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active_connections.discard(websocket)
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# 清理所有TTS资源
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try:
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await tts.cleanup_connection_tts(websocket)
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except:
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pass
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await broadcast_online_count()
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