Update app.py

app.py

@@ -198,7 +198,7 @@ def retry(edited_prompt, video_in, chosen_model):
     return audio_result, final_res
 
 def refresh():
-    return gr.update(value="", interactive=False), gr.update(visible=False)
+    return gr.update(value=None, interactive=False), gr.update(visible=False)
 
 css="""
 #col-container{
@@ -244,7 +244,7 @@ with gr.Blocks(css=css) as demo:
             cache_examples=False
         )
 
-    video_in.change(
+    video_in.upload(
         fn = refresh,
         inputs = None,
         outputs = [caption_o, retry_btn],