Accelerated Video Playback: Difference between revisions

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VisualWikitext

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 <!--T:1-->
-Accelerated video playback in NixOS is generally done by adding relevant packages to {{nixos:option|hardware.opengl.extraPackages}}.
+Accelerated video playback in NixOS is generally done by adding relevant packages to {{nixos:option|hardware.graphics.extraPackages}}.
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-== Installation ==
+== Installation == <!--T:18-->
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-=== Intel ===
+=== Intel === <!--T:19-->
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 {{file|/etc/nixos/configuration.nix|nix|<nowiki>
 {
-   hardware.graphics = { # hardware.opengl in 24.05 and older
+   hardware.graphics = {
      enable = true;
      extraPackages = with pkgs; [
@@ Line 34: / Line 34: @@
 {{file|/etc/nixos/configuration.nix|nix|<nowiki>
 {
-  # hardware.opengl.extraPackages32 in 24.05
    hardware.graphics.extraPackages32 = with pkgs.pkgsi686Linux; [ intel-vaapi-driver ];
 }
@@ Line 46: / Line 45: @@
 {{file|/etc/nixos/configuration.nix|nix|<nowiki>
 {
-   hardware.opengl.enable = true;
+   hardware.graphics.enable = true;
+}
+</nowiki>}}
+<translate>
+=== NVIDIA === <!--T:23-->
+<!--T:24-->
+NVIDIA do not officially support accelerated video playback on Linux. A third-party implementation exists, but does not support Chrome<ref>https://github.com/elFarto/nvidia-vaapi-driver#chrome</ref>, and has significant limitations compared to the other implementations<ref>https://github.com/elFarto/nvidia-vaapi-driver#codec-support</ref>.
+<!--T:25-->
+NVIDIA users with a separate iGPU should generally prefer to use their iGPU for this, and therefore look to the above Intel and AMD sections instead.
+<!--T:26-->
+Users with only an NVIDIA GPU can attempt to use the third party implementation; the package is added to <code>hardware.graphics.extraPackages</code> by default, but it requires some additional setup to be useful<ref>https://github.com/elFarto/nvidia-vaapi-driver#configuration</ref>:
+</translate>
+{{file|/etc/nixos/configuration.nix|nix|<nowiki>
+{ config, lib, ...}: {
+  environment.variables.LIBVA_DRIVER_NAME = "nvidia"
+  # If used with Firefox
+  environment.variables.MOZ_DISABLE_RDD_SANDBOX = "1";
+  programs.firefox.preferences = let
+    ffVersion = config.programs.firefox.package.version;
+  in {
+    "media.ffmpeg.vaapi.enabled" = lib.versionOlder ffVersion "137.0.0";
+    "media.hardware-video-decoding.force-enabled" = lib.versionAtLeast ffVersion "137.0.0";
+    "media.rdd-ffmpeg.enabled" = lib.versionOlder ffVersion "97.0.0";
+    "gfx.x11-egl.force-enabled" = true;
+    "widget.dmabuf.force-enabled" = true;
+    # Set this to true if your GPU supports AV1.
+    #
+    # This can be determined by reading the output of the
+    # `vainfo` command, after the driver is enabled with
+    # the environment variable.
+    "media.av1.enabled" = false;
+  };
 }
 </nowiki>}}
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 == Testing your configuration == <!--T:6-->
@@ Line 63: / Line 103: @@
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-=== Chromium === <!--T:10-->
+<!--T:10-->
+=== Chromium ===
 See [[Chromium#Accelerated_video_playback]].
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@@ Line 74: / Line 115: @@
 <!--T:13-->
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-=== MPV ===
+=== MPV === <!--T:20-->
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+<!--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
+hwdec=auto
-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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@@ Line 95: / Line 135: @@
 == Also see ==
 * [https://wiki.archlinux.org/index.php/Hardware_video_acceleration Arch Linux wiki#Hardware video acceleration].
+* [https://wiki.gentoo.org/wiki/VAAPI Gentoo Wiki#VAAPI.]
 * [https://github.com/NixOS/nixos-hardware nixos-hardware] has example configurations for various types of hardware.
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 [[Category:Video]]