Update app.py

app.py

@@ -161,6 +161,7 @@ def run_end_to_end(image_path, text, voice, input_video, flag_relative, flag_do_
         driving_video_path = gpu_wrapped_stf_pipeline_execute(audio_path)
     else:
         driving_video_path = input_video
+        os.makedirs("animations",exist_ok=True)
         audio_path = osp.join("animations", Path(input_video).stem+".wav")
         extract_audio(driving_video_path, audio_path)