Update app.py

app.py

@@ -382,6 +382,7 @@ def generate_video():
     #                 "process_id": generation_thread.ident}
 
     try:
+        preprocessed_data = run_preprocessing(args)
         base64_video, temp_file_path = process_chunk(driven_audio_path, preprocessed_data, args)
         final_video_path = app.config['final_video_path']
         print('final_video_path',final_video_path)