Update app.py

app.py

@@ -14,7 +14,7 @@ app.mount("/static", StaticFiles(directory="static"), name="static")
 templates = Jinja2Templates(directory="templates")
 
 # Open webcam (or use a file)
-video_source = 0  # Change to "video.mp4" for a file
+video_source = 1  # Change to "video.mp4" for a file
 cap = cv2.VideoCapture(video_source)
 
 def generate_frames():