Updated WebRTC component

app.py

@@ -1,4 +1,4 @@
-from streamlit_webrtc import webrtc_streamer, RTCConfiguration
+from streamlit_webrtc import webrtc_streamer, WebRtcMode, RTCConfiguration
 import streamlit as st
 import av
 import cv2
@@ -90,10 +90,9 @@ class VideoProcessor:
         return av.VideoFrame.from_ndarray(img, format="bgr24")
 
 
-# Streamlit WebRTC component
 webrtc_streamer(
     key="monitor",
     video_processor_factory=VideoProcessor,
-    mode="recvonly",  # This avoids two-way ICE negotiation
-    rtc_configuration=RTCConfiguration(iceServers=[]),  # Remove STUN to prevent UDP signaling
-)
+    mode=WebRtcMode.RECVONLY,  # ✅ FIXED: Use enum, not string
+    rtc_configuration=RTCConfiguration(iceServers=[])  # Disable STUN
+)