- -wnh 1 - -l Tb-y

A command like:

your_program --help | grep -E "(-l|-wnh)" If no output, try: -l tb-y - -wnh 1

ffmpeg -i input.mp4 -vf "tinterlace=tb-y" -wnh 1 output.mp4 is standard because -wnh is not an FFmpeg global option. A command like: your_program --help | grep -E