Accelerated Video Playback: Difference between revisions

Latest revision as of 17:50, 23 April 2024

Accelerated video playback in NixOS is generally done by adding relevant packages to hardware.opengl.extraPackages.

Installation

Intel

/etc/nixos/configuration.nix

{
  hardware.opengl = {
    enable = true;
    extraPackages = with pkgs; [
      intel-media-driver # For Broadwell (2015) or newer processors. LIBVA_DRIVER_NAME=iHD
      intel-vaapi-driver # For older processors. LIBVA_DRIVER_NAME=i965
    ];
  };
  environment.sessionVariables = { LIBVA_DRIVER_NAME = "iHD"; }; # Optionally, set the environment variable
}

For 32-bit support, use hardware.opengl.extraPackages32:

/etc/nixos/configuration.nix

{
  hardware.opengl.extraPackages32 = with pkgs.pkgsi686Linux; [ intel-vaapi-driver ];
}

AMD

AMD configuration (at least for Ryzen 5 iGPUs) works out of the box:

/etc/nixos/configuration.nix

{
  hardware.opengl.enable = true;
}

Testing your configuration

You can test your configuration by running: nix-shell -p libva-utils --run vainfo

See Arch Linux wiki#Hardware video acceleration for more information.

Applications

Chromium

See Chromium#Accelerated_video_playback.

Firefox

See Arch Linux wiki#Firefox.

MPV

You can place the following configuration in ~/.config/mpv/mpv.conf:

hwdec=auto-safe
vo=gpu
profile=gpu-hq
gpu-context=wayland ; On wayland only

See Arch Linux wiki#mpv.

Also see

Arch Linux wiki#Hardware video acceleration.
nixos-hardware has example configurations for various types of hardware.

@@ Line 1: / Line 1: @@
-This page is meant to help with techniques for getting accelerated video playback working in NixOS. This is generally done via libva and vaapi (and sometimes vdpau).
+Accelerated video playback in NixOS is generally done by adding relevant packages to {{nixos:option|hardware.opengl.extraPackages}}.
-This is done by adding relevant <code>libva</code>-related packages to the <code>hardware.opengl.extraPackages</code> option.
+== Installation ==
+=== Intel ===
-Additionally, the <code>vaapiIntel</code> package can be overriden to enable [https://github.com/01org/intel-hybrid-driver Intel's Hybrid Driver].
+{{file|/etc/nixos/configuration.nix|nix|<nowiki>
-Intel users also can enable <code>intel-media-driver</code>. It can be used at runtime with <code>LIBVA_DRIVER_NAME=iHD mpv ...</code> for example, if you use Mic92's mpv settings below.
-Sample configuration:
-<syntaxHighlight lang=nix>
 {
-  ...
-  nixpkgs.config.packageOverrides = pkgs: {
-    vaapiIntel = pkgs.vaapiIntel.override { enableHybridCodec = true; };
-  };
    hardware.opengl = {
      enable = true;
      extraPackages = with pkgs; [
-       vaapiIntel
+       intel-media-driver # For Broadwell (2015) or newer processors. LIBVA_DRIVER_NAME=iHD
-      vaapiVdpau
+       intel-vaapi-driver # For older processors. LIBVA_DRIVER_NAME=i965
-      libvdpau-va-gl
-       intel-media-driver # only available starting nixos-19.03 or the current nixos-unstable
      ];
    };
-   ...
+   environment.sessionVariables = { LIBVA_DRIVER_NAME = "iHD"; }; # Optionally, set the environment variable
+}
+</nowiki>}}
+For 32-bit support, use {{nixos:option|hardware.opengl.extraPackages32}}:
+{{file|/etc/nixos/configuration.nix|nix|<nowiki>
+{
+  hardware.opengl.extraPackages32 = with pkgs.pkgsi686Linux; [ intel-vaapi-driver ];
+}
+</nowiki>}}
+=== AMD ===
+AMD configuration (at least for Ryzen 5 iGPUs) works out of the box:
+{{file|/etc/nixos/configuration.nix|nix|<nowiki>
+{
+  hardware.opengl.enable = true;
 }
-</syntaxHighlight>
+</nowiki>}}
+== Testing your configuration ==
-== Prepared Hardware configuration ==
+You can test your configuration by running: <code>nix-shell -p libva-utils --run vainfo</code>
-Sometimes different opengl packages are required to achieve full performance. You can check different configuration repositories for similar hardware configuration:
-* [https://github.com/NixOS/nixos-hardware The NixOS-Hardware Repository]
+See [https://wiki.archlinux.org/index.php/Hardware_video_acceleration#Verification Arch Linux wiki#Hardware video acceleration] for more information.
 == Applications ==
-===Chromium===
+=== Chromium ===
-Needs a patch for VA-API support, see [https://github.com/NixOS/nixpkgs/issues/21481 nixpkgs#21481] for current status.
+See [[Chromium#Accelerated_video_playback]].
+=== Firefox ===
+See [https://wiki.archlinux.org/index.php/Firefox#Hardware_video_acceleration Arch Linux wiki#Firefox].
-===MPV===
+=== MPV ===
-@Mic92 needed the following configuration in <code>~/.mpv/config</code>
+You can place the following configuration in {{ic|~/.config/mpv/mpv.conf}}:
-for mpv to use hardware acceleration for VP9 on Intel Broadwell:
 <syntaxHighlight lang=ini>
-hwdec=vaapi
+hwdec=auto-safe
 vo=gpu
-hwdec-codecs=all
+profile=gpu-hq
+gpu-context=wayland ; On wayland only
 </syntaxHighlight>
-This is based on the [https://wiki.archlinux.org/index.php/Mpv#Hardware_decoding archlinux MPV article].
+See [https://wiki.archlinux.org/title/mpv#Hardware_video_acceleration Arch Linux wiki#mpv].
+== Also see ==
+* [https://wiki.archlinux.org/index.php/Hardware_video_acceleration Arch Linux wiki#Hardware video acceleration].
+* [https://github.com/NixOS/nixos-hardware nixos-hardware] has example configurations for various types of hardware.
-===Other===
+[[Category:Video]]
-See the [https://wiki.archlinux.org/index.php/Hardware_video_acceleration#Application_support Arch Linux wiki].