Install Fcitx 5 and Hangul plugin:
sudo apt install fcitx5 fcitx5-hangul
Launch im-config
, congfirm and select fcitx5
as your new default input method.
Since all these tools are stil being actively developed, you should always use the newest versions and compile the standalone encoders yourself if necessary.
Rules of thumb for common/useful parameters. Personal notes, maybe useful for others.
Official documentation: https://x265.readthedocs.io/en/master/
FFmpeg x265 guide: https://trac.ffmpeg.org/wiki/Encode/H.265