nix/system/widevine/default.nix
2025-12-14 15:23:45 -05:00

35 lines
1.3 KiB
Nix

{
config,
lib,
pkgs,
...
}:
{
nixpkgs.overlays = lib.mkIf (config.nixpkgs.hostPlatform.isLinux) [
(final: prev: {
wrapFirefox =
browser: opts:
let
extraPrefs = (opts.extraPrefs or "") + ''
lockPref("media.gmp-widevinecdm.version", "system-installed");
lockPref("media.gmp-widevinecdm.visible", true);
lockPref("media.gmp-widevinecdm.enabled", true);
lockPref("media.gmp-widevinecdm.autoupdate", false);
lockPref("media.eme.enabled", true);
lockPref("media.eme.encrypted-media-encryption-scheme.enabled", true);
'';
widevineCdmDir = "${final.widevine-cdm}/share/google/chrome/WidevineCdm";
widevineOutDir = "$out/gmp-widevinecdm/system-installed";
in
(prev.wrapFirefox browser (opts // { inherit extraPrefs; })).overrideAttrs (previousAttrs: {
buildCommand = previousAttrs.buildCommand + ''
mkdir -p "${widevineOutDir}"
ln -s "${widevineCdmDir}/_platform_specific/linux_arm64/libwidevinecdm.so" "${widevineOutDir}/libwidevinecdm.so"
ln -s "${widevineCdmDir}/manifest.json" "${widevineOutDir}/manifest.json"
wrapProgram "$oldExe" --set MOZ_GMP_PATH "${widevineOutDir}"
'';
});
})
];
}