mirror of
https://github.com/lhns/steam-frame-nix.git
synced 2026-10-06 03:00:13 +02:00
Pierre Kisters
0d9a238e5a
steamFrame.launchers.<desktop ID> takes the app's own entry (a Flatpak's
export, a Nix package's or a host file) and rewrites only its command lines
(hostEnv, env, flatpakArgs, args, wrappers) and the keys asked for
(mimeTypes, defaultFor, settings), so name, icon, translations and actions
stay the app's and follow its updates.
- Package entries are rewritten at build time; Flatpak/host file entries at
runtime by steam-frame-nix-launchers into
<session.runtimeDir>/steam-frame-nix/applications (tmpfs), on switch, at
login and when Flatpak installs/updates apps (path unit); the Home Manager
links point there.
- keyring.{enable,electron} replaces steamFrame.keyring.{flatpaks,programs}
(clean break: the old options fail with the new form).
- Firefox's launcher is the Flatpak's entry with the profile wrapper in
front (no --profile for the profile manager); Jellyfin's hardware
decoding sets flatpakArgs and env.
- cleanup --all removes the tmpfs entries.
- Check on copies of the real Element, KRDC, Firefox, gedit, Jellyfin and
Claude entries, quoting and generator behaviour.
79 lines
3.2 KiB
Nix
79 lines
3.2 KiB
Nix
# Hardware video decoding for the Jellyfin Desktop Flatpak
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# (org.jellyfin.JellyfinDesktop; installing it is up to the user).
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# The Frame's decoder is a V4L2 M2M device (qcom-iris, /dev/video*): the
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# Flatpak's devices=dri doesn't expose it (nothing finer than devices=all
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# exists), and Jellyfin hard-sets mpv's hwdec=auto-copy, whose probe list
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# leaves out V4L2 M2M, without a way to pass mpv options. So:
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# - an LD_PRELOAD shim (jellyfin/mpv-hwdec-shim.c) rewrites an "auto*" hwdec
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# to $SFN_MPV_HWDEC. Preloaded from the store: only its store path is
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# exposed (read-only) to the sandbox.
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# - a launcher (launchers.nix: the Flatpak's own entry, same ID, also seen
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# by the "+" menu) starts it with those permissions as `flatpak run`
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# options (--device=all, --filesystem, --env): nothing is written to
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# Flatpak's override files, so they apply only to launches from the entry
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# and disappear with it.
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# Earlier versions used an override file (nix-flatpak or Home Manager);
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# steam-frame-nix-cleanup removes their entries.
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{ config, lib, pkgs, ... }:
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let
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cfg = config.steamFrame.jellyfin.hardwareDecoding;
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app = "org.jellyfin.JellyfinDesktop";
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shim = pkgs.callPackage ./jellyfin/shim.nix { };
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launcher = {
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flatpakArgs = [ "--device=all" "--filesystem=${shim}:ro" ];
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env = {
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LD_PRELOAD = "${shim}/lib/mpv-hwdec-shim.so";
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SFN_MPV_HWDEC = cfg.hwdec;
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};
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};
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L = import ./launchers/lib.nix { inherit lib pkgs; };
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in {
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imports = [ ./launchers.nix ];
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options.steamFrame.jellyfin.hardwareDecoding = {
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enable = lib.mkOption {
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type = lib.types.bool;
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default = false;
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description = ''
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Hardware video decoding (the Frame's V4L2 decoder) in the Jellyfin
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Desktop Flatpak: a launcher (the Flatpak's entry, rewritten) that
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starts it with device access (devices=all) and an LD_PRELOAD shim
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that makes mpv try hwdec's value below. Only launches from that
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entry (menus, the "+" menu) get it; nothing is written to Flatpak's
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overrides. Takes effect at the next start of Jellyfin.
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'';
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};
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hwdec = lib.mkOption {
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type = lib.types.strMatching "[^[:space:]]+";
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default = "v4l2m2m-copy,auto-copy";
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example = "v4l2m2m-copy";
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description = ''
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mpv hwdec value used instead of Jellyfin's automatic one ("auto*");
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tried in order, software decoding if none handles the stream.
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Set as SFN_MPV_HWDEC in the Flatpak's environment.
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'';
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};
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command = lib.mkOption {
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type = lib.types.str;
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readOnly = true;
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# Its launcher's, which exists only when enabled.
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default = if cfg.enable then config.steamFrame.launchers.${app}.command
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else L.command (launcher // {
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id = app; source = { flatpak = null; package = null; file = null; };
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hostEnv = { }; wrappers = [ ]; args = [ ];
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});
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defaultText = lib.literalMD "`flatpak run … org.jellyfin.JellyfinDesktop` with the options";
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description = ''
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About the command line the launcher runs (for a terminal; the same
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as `steamFrame.launchers."org.jellyfin.JellyfinDesktop".command`).
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'';
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};
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};
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config = lib.mkIf cfg.enable {
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steamFrame.launchers.${app} = launcher;
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};
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}
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