D3D12 Helper layer

[FredeJ]

In https://github.com/microsoft/DirectX-Specs/blob/master/d3d/D3D12VideoEncoding.md#23-responsabilities-separation-between-d3d12-api-and-helper-layer it is described that upon completion of the D3D12 Video Encoding API, an additional optional "Helper Layer" will be developed to be used as a higher level API.

Are there any additional developments on this helper layer? It sounds like exactly what I need :)