I want to get information about the best format of the movie, but I don't want to download it, just get the information in JSON.
I tried to write
-f bestvideo[ext=mp4]+bestaudio[ext=m4a]/mp4 --dump-json
But it brought up a list of all the formats, and I don't know which one is the best.
How can I get clean JSON with only the best format?