Re: [PATCH v5 0/1] MR5924: Draft: mfmediaengine: Implement SVR.

[Nikolay Sivov (＠nsivov)]

Some things to test:

* could we use sample allocator unconditionally? In other words, is it possible to get SVR used when no device manager was provided;
* EVR has a circular buffer logic, so maybe we could copy from there;
* it would be great if we could get rid of locking sample buffer for copies, and that should be possible if we always have d3d samples.