stop webrtc output, put input, output frames at top

app.py

@@ -170,11 +170,13 @@ col1, col2 = st.columns(2)
 
 with col1:
     st.header("Input Stream")
-    st.subheader("input")
+    input_subheader = st.empty()
+    input_placeholder = st.empty()  # Placeholder for input frame
+    st.subheader("Input Options")
     # WebRTC streamer to get video input from the webcam
     webrtc_ctx = webrtc_streamer(
         key="input-webcam",
-        mode=WebRtcMode.SENDRECV,
+        mode=WebRtcMode.SENDONLY,
         rtc_configuration=ice_servers,
         video_frame_callback=video_frame_callback,
         media_stream_constraints={"video": True, "audio": False},
@@ -220,12 +222,11 @@ st.markdown(
 
 
 def analysis_init():
-    global analysis_time, show_labels, labels_placeholder, input_placeholder, output_placeholder
+    global analysis_time, show_labels, labels_placeholder, input_subheader, input_placeholder, output_placeholder
 
     with col2:
         st.header("Analysis")
-        st.subheader("Input Frame")
-        input_placeholder = st.empty()  # Placeholder for input frame
+        input_subheader.subheader("Input Frame")
 
         st.subheader("Output Frame")
         output_placeholder = st.empty()  # Placeholder for output frame