Update app.py

app.py

@@ -47,7 +47,7 @@ def convert_video(video_file: File, quality, aspect_ratio, video_url):
   output_path = f"{temp_dir}/{video_file.name}"
 
   # Get the file extension
-  file_extension = video_file.suffix
+  file_extension = video_file.name.split(".")[-1]
 
   # Remove the file extension
   output_path = output_path[:-len(file_extension)]