Update app_gr.py

app_gr.py

@@ -153,13 +153,13 @@ async def setup():
 
     async def return_video(video):
       gr.Info("Processing video..")
-      output = engine.process_video(video, {
+      output = await engine.process_video(video, {
               "aaa": -10,
               "eee": -10,
               "woo": -12
       })
 
-      return output_file
+      return output
 
     interface = gr.Interface(
         fn=return_video,  # Your function to process video