add error msg for video length

app.py

@@ -46,10 +46,10 @@ def download_yt_url(url: str, filename: str = "%(title)s", format = 'mp4'):
 
     # restrict video length so one user doesn't take up all our bandwidth
     def video_filter(info):
-        MAX_DURATION = 5*60
+        MAX_DURATION = 10*60
         duration = info.get('duration')
         if duration and duration > MAX_DURATION:
-            return f'The video is too long at {duration}s, choose a video less than {MAX_DURATION}s'
+            raise Exception(f'The video is too long at {duration}s, choose a video less than {MAX_DURATION}s')
 
     ydl_opts = {
         'match_filter': video_filter,

header.md

@@ -1,4 +1,3 @@
 # <p style="text-align: center;">Acapellify: Extract vocals from Youtube Video URL</p>
 ### <p style="text-align: center;">Based on https://gradio.app/fastapi-app-with-the-gradio-client/</p>
-### <p style="text-align: center;">Backend uses gradio client linked to abidlabs/music-separation</p>
-### <p style="text-align: center;">Free to Use (courtesy of HF Spaces)</p>
+### <p style="text-align: center;">Hosted on HF Spaces, backend uses gradio client linked to abidlabs/music-separation</p>