10 bit 4.2.2

David-Long wrote on 10/2/2023, 10:53 AM

Just received a Sony A7cm2. In trying to render out 10 bit 4.2.2. Setting 10 bit no problem, but the Chroma box is greyed out as 4.2.0. This is using HEVC. I started with VP19 and thought maybe VP21 might work. So got the free trial. I did a search and say Voukuder can do it but it is reaaally slow. So, what is going on. Why is the box for Chroma but it is greyed out. Can anyone help? Thanks, in advance.

Comments

john_dennis wrote on 10/2/2023, 12:26 PM

@David-Long

RogerS wrote on 10/2/2023, 1:00 PM

I also can't find a combination of settings that allow you 4:2:2 in MagixHEVC. Changing the project to 32-bit full or HDR opens up other settings but not that.

Voukoder is probably in x265 (CPU-only) mode?

David-Long wrote on 10/2/2023, 1:47 PM

Yup that is what I did and yes to how Voukoder worked.

RogerS wrote on 10/2/2023, 2:42 PM

In Voukoder I looked under HEVC (NVENC ) and (QSV) as the two GPU encoding options available on my laptop. There are 4:4:4 options with NVIDIA. This lack of choice may be due to limitations with the GPU encoders (at least circa this hardware which is from 2017).

x265 doesn't have such limitations. So either pick a format the GPU supports or wait for the CPU to do the encode.

If you are making intermediate files intended for further editing consider Apple ProRes direct from VEGAS instead of x265. I don't really see the point of 10-bit 4:2:2 if the goal is distribution.