There is an updated pull request by dataCobra against master on the void-packages repository

https://github.com/dataCobra/void-packages nv-codec-headers
https://github.com/void-linux/void-packages/pull/44781

nv-codec-header: update to 12.0.16.1.
#### Testing the changes
- I tested the changes in this PR: **YES**

I've build ffmpeg successfully with this version and also tested streaming with the codec via obs studio with my Nvidia Geforce RTX 2080 Super.

#### Local build testing
- I built this PR locally for my native architecture, (x86_64-glibc)
- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - x86_64-musl
  - aarch64-musl (crossbuild)
  - armv7l (crossbuild)
  - armv6l-musl (crossbuild)

We could also update to 12.1.x but this versions are no longer compatible with ffmpeg 4.4.4.

That's why for the moment I would update only to 12.0.16.1. This versions builds successfully with all packages that rely on it.

The new version would no longer allow users of nvidia470 to use the package. But 12.x brings so many relevant features for last and current generations of Nvidia graphics cards that this shouldn't be an argument.

A patch file from https://github.com/void-linux/void-packages/pull/44781.patch is attached