Accelerated Video Playback: Difference between revisions

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This page is meant to help with techniques for getting accelerated video playback working in NixOS.
<languages/>
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<!--T:1-->
Accelerated video playback in NixOS is generally done by adding relevant packages to {{nixos:option|hardware.opengl.extraPackages}}.
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This is done by adding relevant `libva`-related packages to the `hardware.opengl.extraPackages` option.
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== Installation == <!--T:18-->
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=== Intel === <!--T:19-->
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{{file|/etc/nixos/configuration.nix|nix|<nowiki>
{
  hardware.graphics = { # hardware.opengl in 24.05 and older
    enable = true;
    extraPackages = with pkgs; [
      intel-media-driver # For Broadwell (2014) 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
}
</nowiki>}}
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<!--T:2-->
Note, <code>intel-vaapi-driver</code> still performs better for browsers (gecko/chromium based) on newer Skylake (2015) processors.<ref>https://github.com/intel/media-driver/issues/1024</ref>
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Additionally, the `vaapiIntel` package can be overriden to enable [Intel's Hybrid Driver](https://github.com/01org/intel-hybrid-driver).
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<!--T:3-->
For 32-bit support, use
</translate> {{nixos:option|hardware.graphics.extraPackages32}}:
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
{
  # hardware.opengl.extraPackages32 in 24.05
  hardware.graphics.extraPackages32 = with pkgs.pkgsi686Linux; [ intel-vaapi-driver ];
}
</nowiki>}}
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=== AMD === <!--T:4-->


Sample configuration:
<!--T:5-->
AMD configuration (at least for Ryzen 5 iGPUs) works out of the box:
</translate>
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
{
  hardware.opengl.enable = true;
}
</nowiki>}}
<translate>
== Testing your configuration == <!--T:6-->


  {
<!--T:7-->
    ...
You can test your configuration by running: <code>nix-shell -p libva-utils --run vainfo</code>
    nixpkgs.config.packageOverrides = pkgs: {
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      vaapiIntel = pkgs.vaapiIntel.override { enableHybridCodec = true; };
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    };
<!--T:8-->
    hardware.opengl = {
See [https://wiki.archlinux.org/index.php/Hardware_video_acceleration#Verification Arch Linux wiki#Hardware video acceleration] for more information.
      enable = true;
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      extraPackages = with pkgs; [
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        vaapiIntel
== Applications == <!--T:9-->
        vaapiVdpau
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        libvdpau-va-gl
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      ];
<!--T:10-->
    };
=== Chromium ===
    ...
See [[Chromium#Accelerated_video_playback]].
  }
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=== Firefox === <!--T:11-->


== Prepared Hardware configuration ==
<!--T:12-->
Sometimes different opengl packages are required to achieve full performance. You can check different configuration repositories for similar hardware configuration:
See [https://wiki.archlinux.org/index.php/Firefox#Hardware_video_acceleration Arch Linux wiki#Firefox].
* [https://github.com/NixOS/nixos-hardware The NixOS-Hardware Repository]
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<!--T:13-->
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=== MPV === <!--T:20-->
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<translate>
<!--T:21-->
You can place the following configuration in {{ic|~/.config/mpv/mpv.conf}}:
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<!--T:14-->
<syntaxHighlight lang=ini>
hwdec=auto-safe
vo=gpu
profile=gpu-hq
gpu-context=wayland ; On wayland only
</syntaxHighlight>
 
<!--T:15-->
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<!--T:22-->
See [https://wiki.archlinux.org/title/mpv#Hardware_video_acceleration Arch Linux wiki#mpv].
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<translate>
<!--T:16-->
== 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.
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[[Category:Video]]

Latest revision as of 14:05, 21 August 2024

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

Installation

Intel

/etc/nixos/configuration.nix
{
  hardware.graphics = { # hardware.opengl in 24.05 and older 
    enable = true;
    extraPackages = with pkgs; [
      intel-media-driver # For Broadwell (2014) 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
}

Note, intel-vaapi-driver still performs better for browsers (gecko/chromium based) on newer Skylake (2015) processors.[1]

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

/etc/nixos/configuration.nix
{
  # hardware.opengl.extraPackages32 in 24.05
  hardware.graphics.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