fix

app.py

@@ -59,6 +59,8 @@ with gr.Blocks() as demo:
                 gr_radio_mode = gr.Radio(label="Select Mode", choices=["Real-Time Commentary", "Conversation"], elem_id="gr_radio_mode", value='Real-Time Commentary', interactive=True) 
 
             def gr_chatinterface_fn(message, history, state, video_path, mode):
+                if mode == 'Real-Time Commentary':
+                    return gradio_backend.waiting_video_response, state
                 state['video_path'] = video_path
                 response, state = gradio_backend(query=message, state=state, mode=mode)
                 return response, state