1

video-gen-api/app/services/llm.py

@@ -1,6 +1,4 @@
-import base64
 import json
-import mimetypes
 import os
 from datetime import datetime
 
@@ -292,22 +290,15 @@ async def _call_openai_compatible(
 
     def _file_url_or_data_uri(file_url: str, fallback_mime: str) -> str:
         """
-        Convert local upload path to base64 data URI.
-        Keep remote http/https/data URLs as-is.
+        远程 URL 保持原样；本地上传路径拼接 BASE_URL 转为完整链接。
         """
         if file_url.startswith(("http://", "https://", "data:")):
             return file_url
 
-        # Compatible with /uploads/xxx and plain relative paths
-        relative_path = file_url.replace("/uploads/", "", 1).lstrip("/")
-        file_path = os.path.join(settings.UPLOAD_LOCAL_PATH, relative_path)
-
-        mime = mimetypes.guess_type(file_path)[0] or fallback_mime
-
-        with open(file_path, "rb") as f:
-            b64 = base64.b64encode(f.read()).decode()
-
-        return f"data:{mime};base64,{b64}"
+        # 本地上传路径拼接 BASE_URL，例如 /uploads/images/xxx.png → https://domain.com/uploads/images/xxx.png
+        base = settings.BASE_URL.rstrip("/")
+        path = file_url if file_url.startswith("/") else f"/{file_url}"
+        return f"{base}{path}"
 
     if image_urls or video_urls:
         user_message, log_user_message = await _build_multimodal_content(