Show audio-only or video-only in format list

[ghost]

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Description of your issue, suggested solution and other information

I'd like to list only audio formats when using the -F flag. Is it possible to do it right now without workarounds in my terminal? If not, do you think adding a video-only or audio-only parameters to the already existing format selection could be feasible? I'm using youtube-dl in a custom batch script but I don't need to list format codes for video files since I only use audio formats.

[dstftw]

-F always lists all formats and have nothing to do with format selection. Format selection on its own already have ability to select only-formats with acodec and vcodec.