Update main.py

main.py

@@ -236,7 +236,7 @@ async def download_video_max_quality(request: Request, payload: MaxDownloadReque
             else:
                 # For > 1080 max dimension, prioritize best available codec
                 logger.info(f"Attempting best available codec for requested quality (max dimension): {max_dim}")
-                format_selector =f'bestvideo[height<={long_edge}]/bestvideo[width<={long_edge}]+bestaudio/best'
+                format_selector = f'bestvideo[height<={long_edge}][width<={long_edge}]+bestaudio/best'
 
     logger.info(f"Using format selector: '{format_selector}'")