If mondo64no139wmv represents a low-quality or legacy file, here’s how to it to the best possible output.
ffmpeg -i input.wmv -vf "scale=1920:1080:flags=lanczos" -c:v libx264 -crf 17 output.mp4 mondo64no139wmv best
The string format resembles an automated file name for a legacy video archive or a private internal document ID. If mondo64no139wmv represents a low-quality or legacy file,