VA-API 2.17 Released With Basic X11 DRI3 Support, Enabling VA-API On Windows

In addition to Intel engineers this past week releasing the newest Intel Media Driver quarterly release, they have also published libva 2.17 as the newest version of this open-source Video Acceleration API library that is used across VA-API vendor/driver implementations.

The libva 2.17 release was tagged this morning and punts EMGD / NVIDIA NVCTRL / AMD FGLRX code behind a "with-legacy" build option, various Meson build system updates, various bug fixes, initial Windows build support, and basic DRI3 support for the X11 code path.

Yes, VA-API 2.17 is the first release where this Linux Video Acceleration API is seeing initial enablement work for Windows. Presumably Intel is working to expose VA-API on Windows for better API compatibility with their oneAPI software stack and getting oneVPL video processing with VA-API to be more cross-platform... It will be interesting to see what other drivers and software may end up supporting VA-API on Windows moving forward while for now it's this central libva library that has seen the initial Microsoft Windows enablement.

The basic DRI3 enablement for VA-API noted:

"DRI3 has been a thing for 5+ years, sadly libva never learned how to query the server for the fd.

Add basic support for that, where we fall-back to the DRM module's drm module name to driver mappings."

The libva 2.17 library source code can be downloaded from GitHub.