feat: 新增代码

video_worker/app/backends/base.py

@@ -0,0 +1,19 @@
+from abc import ABC, abstractmethod
+from typing import Any, Dict
+
+
+class BaseVideoBackend(ABC):
+    backend_name: str
+    model_name: str
+
+    @abstractmethod
+    def load(self) -> None:
+        raise NotImplementedError
+
+    @abstractmethod
+    def is_loaded(self) -> bool:
+        raise NotImplementedError
+
+    @abstractmethod
+    def generate(self, task_id: str, request_data: Dict[str, Any], output_dir: str) -> Dict[str, str]:
+        raise NotImplementedError