[FFmpeg-user] How can I reduce compression with libx265?

[Moritz Barsnick]

On Mon, Mar 30, 2020 at 10:03:26 -0400, Mark Filipak wrote:
> The x265 coder is documented here:
> https://ffmpeg.org/ffmpeg-codecs.html#libx265
> There's no documentation in the documentation -- I would write "There's no 'there' there" but the
> younger audience wouldn't know to what I refer.

Very well explained here:
https://trac.ffmpeg.org/wiki/Encode/H.265#Ratecontrolmodes

I usually use CRF (as with libx264).

> How can I reduce compression with libx265? Is 'preset' the way? Is 'tune' the way. There's not only
> no documentation for them, there's not even an indication of parameter type or range (or even if
> they take parameters -- the lack of documentation is shameful).

The relation to presets is also explained.

Cheers,
Moritz