[alexklarjr]

doubt it, should be on OS level, gpu control for all possible vendors and output formats is impossible without gpu driver support.

[transpute]

It's specific to the Intel GPU. Intel PAVP (Protected Audio-Video Path). See page 192 of Intel's "Platform Embedded Security Technology Revealed" (2014), https://link.springer.com/book/10.1007/978-1-4302-6572-6