Question regarding prefering specific formats

[qutetemp]

Is there something like prefer-free-formats but generalized ? Not always downloading those formats but prefering them only and only if they meet the requirements similar to how prefer-free-formats will not download webm of a video with the highest video stream being mp4.

If you're going to redirect me to the documentation please tell me what I might be missing.
Thanks.

[dstftw]

Did you even read FAQ?

--prefer-free-formats            Prefer free video formats unless a specific
                                 one is requested

[qutetemp]

No man. Generalized like prefer-[these-formats].
For example in the case of prefer-free-formats it would prefer webm, I want to be able to specific what it should prefer, like for example mp4.

[dstftw]

https://github.com/rg3/youtube-dl#format-selection