diff --git a/Qwen_app.py b/Qwen_app.py
index 70364a3..97a68f4 100644
--- a/Qwen_app.py
+++ b/Qwen_app.py
@@ -332,19 +332,30 @@ def get_vid_dict(vid_dir: str, obj_dict: dict, video_url_file: str, use_url_cach
         if os.path.exists(video_url_file):
             try:
                 with open(video_url_file, "r", encoding="utf-8") as f:
-                    vid_dict = json.load(f)
+                    loaded_data = json.load(f)
+                    # 验证数据结构：确保值是字典且包含必要键
+                    for track_id, value in loaded_data.items():
+                        if isinstance(value, dict) and "vid_path" in value and "vid_url" in value:
+                            vid_dict[track_id] = value
+                        else:
+                            print(f"跳过无效的视频信息: {track_id} -> {value}")
             except Exception as e:
                 print(f"读取URL文件失败: {e}")
+
+    # 初始化未存在的track_id
     for track_id in obj_dict.keys():
         if track_id in vid_dict:
             continue
-        vid_path = f"{vid_dir}/obj_{int(track_id):03d}.mp4"
-        vid_dict[track_id] = {"vid_path": vid_path, "vid_url": None}
+        try:
+            vid_path = f"{vid_dir}/obj_{int(track_id):03d}.mp4"
+            vid_dict[track_id] = {"vid_path": vid_path, "vid_url": None}
+        except (ValueError, TypeError):
+            print(f"无效的track_id: {track_id}，跳过")
 
     # 找到未上传的视频
     unuploaded_vids = []
     for track_id, vid_info in vid_dict.items():
-        if vid_info["vid_url"] is None:
+        if isinstance(vid_info, dict) and vid_info.get("vid_url") is None:
             unuploaded_vids.append(vid_info["vid_path"])
 
     # 上传未上传的视频并获取 URL
@@ -355,9 +366,11 @@ def get_vid_dict(vid_dir: str, obj_dict: dict, video_url_file: str, use_url_cach
 
     # 更新视频URL
     for track_id, vid_info in vid_dict.items():
-        if vid_info["vid_url"] is None:
-            idx = unuploaded_vids.index(vid_info["vid_path"])
-            vid_info["vid_url"] = uploaded_urls[idx]
+        if isinstance(vid_info, dict) and vid_info.get("vid_url") is None:
+            if vid_info["vid_path"] in unuploaded_vids:
+                idx = unuploaded_vids.index(vid_info["vid_path"])
+                if idx < len(uploaded_urls):
+                    vid_info["vid_url"] = uploaded_urls[idx]
 
     # 保存字典为 JSON 文件
     with open(video_url_file, "w", encoding="utf-8") as f: