Update app.py

app.py

@@ -86,13 +86,15 @@ vis_processor = registry.get_processor_class(vis_processor_cfg.name).from_config
 chat = Chat(model, vis_processor, device='cuda')
 print('Initialization Finished')
 
-global have_video = 0
+have_video = 0
+
 # ========================================
 #             Gradio Setting
 # ========================================
 
 
 def gradio_reset(chat_state, img_list):
+    global have_video
     have_video = 0
     if chat_state is not None:
         chat_state.messages = []
@@ -135,6 +137,7 @@ def gradio_ask(user_message, chatbot, chat_state):
 
 @spaces.GPU
 def gradio_answer(video, chatbot, chat_state, img_list, num_beams, temperature):
+    global have_video
     if have_video == 0:
         llm_message = chat.upload_video_without_audio(video, chat_state, img_list)
         have_video = 1