[Forteen88]

Thanks. But why not set this? --profile main10
10-bits might help a little with banding maybe.
Is there any reason not to set --profile main10 in x265? Most of latest years GPU:s supports 10-bit H.265-decoding partially or fully.

EDIT: OK, thanks Blue_MiSfit, although watching video at this high resolution on an Android phone (small screen) is just wasteful.