Accelerated Video Playback/en: Difference between revisions

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VisualWikitext

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 <languages/>
-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}}.
 == Installation ==
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 {{file|/etc/nixos/configuration.nix|nix|<nowiki>
 {
-   hardware.opengl.enable = true;
+   hardware.graphics.enable = true;
 }
 </nowiki>}}
+=== NVIDIA ===
+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>.
+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.
+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>:
+{{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>}}
 == Testing your configuration ==
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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>