nongnu: Add nvidia-vaapi-driver.

* nongnu/packages/nvidia.scm (nvidia-vaapi-driver): New variable.

nongnu/packages/nvidia.scm

@@ -21,6 +21,7 @@
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system copy)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build-system meson)
   #:use-module (guix build-system python)
   #:use-module (guix build-system trivial)
   #:use-module (gnu packages base)
@@ -34,6 +35,7 @@
   #:use-module (gnu packages gcc)
   #:use-module (gnu packages gl)
   #:use-module (gnu packages glib)
+  #:use-module (gnu packages gstreamer)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages m4)
@@ -650,6 +652,35 @@ configuration, creating application profiles, gpu monitoring and more.")
      "This package provides a task manager for Nvidia graphics cards.")
     (license license-gnu:expat)))
 
+(define-public nvidia-vaapi-driver
+  (package
+    (name "nvidia-vaapi-driver")
+    (version "0.0.5")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/elFarto/nvidia-vaapi-driver")
+                    (commit (string-append "v" version))))
+              (sha256
+               (base32
+                "11pinvf95fd1hp2km3skvww9msxmbv2625xf5f3qcmi5mal9rg6r"))
+              (file-name (git-file-name name version))))
+    (build-system meson-build-system)
+    (native-inputs (list pkg-config))
+    (inputs (list gst-plugins-bad
+                  libdrm
+                  libva
+                  libx11
+                  nv-codec-headers
+                  nvidia-libs
+                  mesa))
+    (home-page "https://github.com/elFarto/nvidia-vaapi-driver")
+    (synopsis "VA-API video acceleration driver for NVIDIA graphics devices")
+    (description
+     "This is the @acronym{VA-API, Video Acceleration API} back end required for
+hardware-accelerated video processing on NVIDIA NVDEC Graphics devices.")
+    (license license-gnu:expat)))
+
 ;; nvda is used as a name because it has the same length as mesa which is
 ;; required for grafting
 (define-public nvda