Update app.py

app.py

@@ -21,7 +21,7 @@ def process_video(video_file, youtube_url, language_choice):
         return None
     elif youtube_url != None:
         yt = YouTube(youtube_url, use_oauth=True, allow_oauth_cache=True)
-        yt.streams.filter(progressive=True, file_extension='mp4').first().download(filename="original")
+        yt.streams.filter(progressive=True, file_extension='mp4').first().download(filename="original.mp4")
         video_file = "original.mp4"
     
     # Initialize paths and devices