d3d12: Video Encode - Add driver workaround for rate control reconfiguration
What does this MR do and why?
d3d12: Video Encode - Add driver workaround for rate control reconfiguration
Adds a driver workaround for IHVs actually supporting rate control
reconfiguration but not reporting it in the DX12 driver support flags,
and later having crashes/hangs in the driver when the rate control
reconfiguration happens using the fallback method that includes re-creating
the encoder state and encoder heap objects upon new rate control params
Future IHV DX12 drivers will fix this, but adding workaround for affected drivers in retail.