Video Any tutorial for H.265 HEVC video?

https://docs.unity3d.com/Manual/VideoSources-FileCompatibility.html#H265Compatibility
It seems that Unity 5.6 or later support H.265 HEVC video for Android (5+) and iOS (SDK11+), right?
However, it seems that it requires very specific settings. Is there any tutorial?　
(I think answers.unity.com was right place to post. So I will post this question there instead)