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AI-powered video call with virtual companions

Project description

Fancall Backend

AI 아이돌과 실시간 영상 통화 Python 패키지

주요 기능

  • LiveKit 기반 실시간 음성/영상 통화
  • Fish Audio TTS 음성 합성
  • Hedra 아바타 지원 (선택)
  • 동적 설정 (voice_id, avatar_id, system_prompt)

설치

cd backend
poetry install
poetry run uvicorn main:app --reload

API 문서:

LiveKit 설정

서버

brew install livekit
livekit-server --dev

서버: ws://localhost:7880 (API Key: devkey, Secret: secret)

Agent

cd backend
export OPENAI_API_KEY=sk-...
export FISH_API_KEY=...

# 개발 모드
python -m fancall.agent.worker dev

# 프로덕션 모드
python -m fancall.agent.worker start

# 특정 룸 연결
python -m fancall.agent.worker connect --room <room-name>

사용법

FastAPI 통합

from fancall.api.router import create_fancall_router
from fancall.factories import LiveRoomRepositoryFactory
from fancall.settings import LiveKitSettings

router = create_fancall_router(
    livekit_settings=LiveKitSettings(),
    jwt_settings=jwt_settings,
    db_session_factory=db_session_factory,
    repository_factory=LiveRoomRepositoryFactory(db_session_factory),
)
app.include_router(router, prefix="/api")

개발

poetry install
make lint
make type-check
make unit-test
make format

데이터베이스 마이그레이션

데이터베이스 스키마를 최신 상태로 업데이트하려면:

make migrate

새로운 마이그레이션을 생성하려면 (models.py 변경 후):

poetry run alembic revision --autogenerate -m "변경 설명"

환경 변수

필수 (Agent 실행 시)

변수 설명
OPENAI_API_KEY OpenAI API 키
FISH_API_KEY Fish Audio TTS API 키

선택 (기능 활성화)

변수 기본값 설명
FANCALL_OPENAI_MODEL gpt-4o-mini 사용할 OpenAI LLM 모델
HEDRA_ENABLED false Hedra 아바타 활성화
HEDRA_API_KEY - Hedra API 키 (enabled=true일 때 필수)

참고: LiveKit, 데이터베이스, 모델 등 추가 설정은 기본값으로 로컬 개발 가능합니다. 변경이 필요한 경우 fancall/settings.py의 Settings 클래스를 참고하세요.

의존성

  • aioia-core (공통 인프라)
  • FastAPI, SQLAlchemy, Pydantic
  • livekit-api, livekit-agents

라이선스

Apache 2.0

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