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ai-video-fullstack/backend/services/pipecat/service_factory.py
Xin Wang 42cab2a6ef Initial commit: AI Video Assistant fullstack platform.
Add pipecat-based backend with WebRTC/WS voice routes, Next.js frontend, and Docker Compose orchestration.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-06-08 13:51:28 +08:00

54 lines
1.8 KiB
Python

"""创建 STT / LLM / TTS 服务。
对应 dograh 的 service_factory.py,但只留一套国产栈(OpenAI 兼容),
按 provider 扩展时在这里加分支即可——这是未来接更多模型的唯一入口。
"""
import config
from loguru import logger
from models import AssistantConfig
from pipecat.services.openai.llm import OpenAILLMService
from pipecat.services.openai.stt import OpenAISTTService
from pipecat.services.openai.tts import OpenAITTSService
def create_stt(cfg: AssistantConfig):
"""SenseVoice / FunASR 等,走 OpenAI 兼容的 /v1/audio/transcriptions。
连接信息优先用 cfg(由 config_resolver 从 DB 注入),为空回退 .env 默认。
"""
return OpenAISTTService(
api_key=cfg.stt_api_key or config.STT_API_KEY,
base_url=cfg.stt_base_url or config.STT_BASE_URL,
model=cfg.asr or config.STT_MODEL,
)
def create_llm(cfg: AssistantConfig):
"""DeepSeek 等,走 OpenAI 兼容的 /v1/chat/completions。"""
return OpenAILLMService(
api_key=cfg.llm_api_key or config.LLM_API_KEY,
base_url=cfg.llm_base_url or config.LLM_BASE_URL,
model=cfg.model or config.LLM_MODEL,
)
def create_tts(cfg: AssistantConfig):
"""CosyVoice 等,走 OpenAI 兼容的 /v1/audio/speech。"""
return OpenAITTSService(
api_key=cfg.tts_api_key or config.TTS_API_KEY,
base_url=cfg.tts_base_url or config.TTS_BASE_URL,
model=config.TTS_MODEL,
voice=cfg.voice or config.TTS_VOICE,
)
def create_services(cfg: AssistantConfig):
logger.info(
f"创建服务: stt={cfg.asr or config.STT_MODEL} "
f"llm={cfg.model or config.LLM_MODEL} "
f"tts={cfg.voice or config.TTS_VOICE}"
)
return create_stt(cfg), create_llm(cfg), create_tts(cfg)