Update app_rvc.py

app_rvc.py

@@ -309,8 +309,13 @@ def download_and_adjust_youtube_video(url, speed_factor, start_time=None, end_ti
     # Generate output filename
     output_filename = f"downloaded/{os.path.splitext(os.path.basename(filename))[0]}_speed{speed_factor}.mp4"
 
+    # Set a default fps if it's not available
+    fps = video.fps
+    if fps is None:
+        fps = 30  # Default to 30 fps if not available
+
     # Write the adjusted video
-    adjusted_video.write_videofile(output_filename)
+    adjusted_video.write_videofile(output_filename, fps=fps)
 
     # Close the video objects
     video.close()