use nvidia-vaapi-driver for video decoding

common/pc/chromium.nix

@@ -2,6 +2,53 @@
 
 let
   cfg = config.de;
+
+  nv-codec-headers-11-1-5-1 = pkgs.stdenv.mkDerivation rec {
+    pname = "nv-codec-headers";
+    version = "11.1.5.1";
+
+    src = pkgs.fetchgit {
+      url = "https://git.videolan.org/git/ffmpeg/nv-codec-headers.git";
+      rev = "n${version}";
+      sha256 = "yTOKLjyYLxT/nI1FBOMwHpkDhfuua3+6Z5Mpb7ZrRhU=";
+    };
+
+    makeFlags = [
+      "PREFIX=$(out)"
+    ];
+  };
+
+  nvidia-vaapi-driver = pkgs.stdenv.mkDerivation rec {
+    pname = "nvidia-vaapi-driver";
+    version = "0.0.5";
+
+    src = pkgs.fetchFromGitHub {
+      owner = "elFarto";
+      repo = pname;
+      rev = "v${version}";
+      sha256 = "2bycqKolVoaHK64XYcReteuaON9TjzrFhaG5kty28YY=";
+    };
+
+    patches = [
+      ./use-meson-v57.patch
+    ];
+
+    nativeBuildInputs = with pkgs; [
+      meson
+      cmake
+      ninja
+      pkg-config
+    ];
+
+    buildInputs = with pkgs; [
+      nv-codec-headers-11-1-5-1
+      libva
+      gst_all_1.gstreamer
+      gst_all_1.gst-plugins-bad
+      libglvnd
+    ];
+  };
+
 in {
   config = lib.mkIf cfg.enable {
     # chromium with specific extensions + settings
@@ -31,16 +78,20 @@ in {
       chromium = pkgs.chromium.override {
         gnomeKeyringSupport = true;
         enableWideVine = true;
+        # ungoogled = true;
         commandLineArgs = "--use-vulkan --use-gl=desktop --enable-zero-copy --enable-hardware-overlays --enable-features=VaapiVideoDecoder,CanvasOopRasterization --ignore-gpu-blocklist --enable-accelerated-mjpeg-decode --enable-accelerated-video --enable-native-gpu-memory-buffers --enable-gpu-rasterization";
       };
     };
+    # todo vulkan in chrome
+    # todo video encoding in chrome
     hardware.opengl = {
       enable = true;
       extraPackages = with pkgs; [
         intel-media-driver # LIBVA_DRIVER_NAME=iHD
         vaapiIntel         # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
-        vaapiVdpau
+        # vaapiVdpau
         libvdpau-va-gl
+        nvidia-vaapi-driver
       ];
       extraPackages32 = with pkgs.pkgsi686Linux; [ vaapiIntel ];
     };

common/pc/use-meson-v57.patch

@@ -0,0 +1,22 @@
+diff --git a/meson.build b/meson.build
+index dace367..8c0e290 100644
+--- a/meson.build
++++ b/meson.build
+@@ -8,7 +8,7 @@ project(
+         'warning_level=0',
+     ],
+     license: 'MIT',
+-    meson_version: '>= 0.58.0',
++    meson_version: '>= 0.57.0',
+ )
+ 
+ cc = meson.get_compiler('c')
+@@ -47,8 +47,3 @@ shared_library(
+     gnu_symbol_visibility: 'hidden',
+ )
+ 
+-meson.add_devenv(environment({
+-    'NVD_LOG': '1',
+-    'LIBVA_DRIVER_NAME': 'nvidia',
+-    'LIBVA_DRIVERS_PATH': meson.project_build_root(),
+-}))

machines/ray/configuration.nix

@@ -38,6 +38,7 @@ in
   # gpu
   services.xserver.videoDrivers = [ "nvidia" ];
   services.xserver.logFile = "/var/log/Xorg.0.log";
+  hardware.nvidia.modesetting.enable = true; # for nvidia-vaapi-driver
   hardware.nvidia.prime = {
     # reverse_sync.enable = true;
     # offload.enable = true;