diff --git a/reproject/main.py b/reproject/main.py
index 811775c..fa70471 100644
--- a/reproject/main.py
+++ b/reproject/main.py
@@ -271,6 +271,15 @@ def video_stream_thread():
     out = cv2.VideoWriter(gst_pipeline, cv2.CAP_GSTREAMER, 0, float(fps), (width, height))
     # out1 = cv2.VideoWriter('output1.mp4', fourcc, 30.0, (1280, 720))
     # out2 = cv2.VideoWriter('output2.mp4', fourcc, 30.0, (1280, 720))
+    if not out.isOpened():
+        print("❌ [Error] 视频录制启动失败！")
+        print("请检查：")
+        print("1. 分辨率是否严格匹配？(Pipeline写了1280x720，但摄像头是这个吗？)")
+        print("2. 是否安装了 GStreamer 插件？")
+        print(f"当前使用的 Pipeline: {gst_pipeline}")
+    else:
+        print("✅ [Video] 视频录制已启动，正在写入...")
+        
     while not stop_event.is_set():
         try:
             frame = video_queue.get(timeout=1)