[FFmpeg-devel] [PATCH] Add support for the new key & value API in libaom.

[Jan Ekström]

On Mon, Feb 8, 2021 at 10:40 PM Christopher Degawa <ccom at randomderp.com> wrote:
>
> Quick question as a user that is not entirely related to this patch, would
> it be possible to add something like a `ffmpeg ... -libaom-params help -f
> null -` or someother way that would print out the options available in the
> compiled libaom? (In the case where we do not have aomenc compiled or it's
> compiled using a different libaom version)

I don't think this is currently possible, but I did hack up a quick
PoC for dynamic help entries once after someone #ffmpeg raised that
it'd be nice to have a listing of things.

https://github.com/jeeb/ffmpeg/commits/avoption_dynamic_help

This PoC just added the presets from libx265 into a dynamic help text
for the preset option, visible with `ffmpeg -h encoder=libx265`. Of
course this just goes into the explanation field, so not like the
alternatives in some other fields where it iterates over things.

Jan