Update app.py

app.py

@@ -1,5 +1,5 @@
 import streamlit as st
-from streamlit_webrtc import webrtc_streamer, VideoTransformerBase
+from streamlit_webrtc import webrtc_streamer, VideoTransformerBase, WebRtcMode
 import av
 import threading
 import numpy as np
@@ -32,7 +32,10 @@ def base64_to_image(base64_string):
     # Open image with PIL
     img = Image.open(image_buffer)
     return img
-
+def get_ice_servers():
+    # Using Google's public STUN server
+    return [{"urls": ["stun:stun.l.google.com:19302"]}]
+    
 # Initialize session state keys if not present
 if 'current_image' not in st.session_state:
     st.session_state['current_image'] = None
@@ -79,10 +82,11 @@ with col1:
 }
     ctx = webrtc_streamer(
         key="example",
+        mode=WebRtcMode.SENDRECV,
         video_transformer_factory=lambda: VideoTransformer(st.session_state),
         media_stream_constraints={"video": True, "audio": False},
         async_transform=True,
-        rtc_configuration=rtc_configuration,
+        rtc_configuration={"iceServers": get_ice_servers()},
         
     )