Update app.py

app.py

@@ -40,6 +40,14 @@ np.random.seed(42)
 colors = np.random.randint(0, 255, size=(len(model.names), 3), dtype=np.uint8)
 
 def process_video(video_path):
+    # Check if video_path is None or empty
+    if video_path is None or video_path == "":
+        return None
+    
+    # Handle the case when Gradio passes a tuple (file, None)
+    if isinstance(video_path, tuple) and len(video_path) >= 1:
+        video_path = video_path[0]
+    
     cap = cv2.VideoCapture(video_path)
     
     if not cap.isOpened():