102 lines
3.3 KiB
Nix
102 lines
3.3 KiB
Nix
# pipewire service.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.pipewire;
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enable32BitAlsaPlugins = cfg.alsa.support32Bit
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&& pkgs.stdenv.isx86_64
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&& pkgs.pkgsi686Linux.pipewire != null;
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# The package doesn't output to $out/lib/pipewire directly so that the
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# overlays can use the outputs to replace the originals in FHS environments.
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#
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# This doesn't work in general because of missing development information.
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jack-libs = pkgs.runCommand "jack-libs" {} ''
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mkdir -p "$out/lib"
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ln -s "${pkgs.pipewire.jack}/lib" "$out/lib/pipewire"
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'';
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in {
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meta = {
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maintainers = teams.freedesktop.members;
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};
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###### interface
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options = {
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services.pipewire = {
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enable = mkEnableOption "pipewire service";
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socketActivation = mkOption {
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default = true;
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type = types.bool;
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description = ''
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Automatically run pipewire when connections are made to the pipewire socket.
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'';
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};
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alsa = {
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enable = mkEnableOption "ALSA support";
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support32Bit = mkEnableOption "32-bit ALSA support on 64-bit systems";
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};
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jack = {
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enable = mkEnableOption "JACK audio emulation";
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};
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pulse = {
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enable = mkEnableOption "PulseAudio server emulation";
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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assertions = [
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{
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assertion = cfg.pulse.enable -> !config.hardware.pulseaudio.enable;
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message = "PipeWire based PulseAudio server emulation replaces PulseAudio";
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}
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{
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assertion = cfg.jack.enable -> !config.services.jack.jackd.enable;
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message = "PipeWire based JACK emulation doesn't use the JACK service";
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}
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];
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environment.systemPackages = [ pkgs.pipewire ]
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++ lib.optional cfg.jack.enable jack-libs;
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systemd.packages = [ pkgs.pipewire ]
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++ lib.optional cfg.pulse.enable pkgs.pipewire.pulse;
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# PipeWire depends on DBUS but doesn't list it. Without this booting
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# into a terminal results in the service crashing with an error.
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systemd.user.sockets.pipewire.wantedBy = lib.mkIf cfg.socketActivation [ "sockets.target" ];
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systemd.user.sockets.pipewire-pulse.wantedBy = lib.mkIf (cfg.socketActivation && cfg.pulse.enable) ["sockets.target"];
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systemd.user.services.pipewire.bindsTo = [ "dbus.service" ];
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services.udev.packages = [ pkgs.pipewire ];
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# If any paths are updated here they must also be updated in the package test.
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sound.extraConfig = mkIf cfg.alsa.enable ''
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pcm_type.pipewire {
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libs.native = ${pkgs.pipewire.lib}/lib/alsa-lib/libasound_module_pcm_pipewire.so ;
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${optionalString enable32BitAlsaPlugins
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"libs.32Bit = ${pkgs.pkgsi686Linux.pipewire.lib}/lib/alsa-lib/libasound_module_pcm_pipewire.so ;"}
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}
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pcm.!default {
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@func getenv
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vars [ PCM ]
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default "plug:pipewire"
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playback_mode "-1"
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capture_mode "-1"
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}
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'';
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environment.etc."alsa/conf.d/50-pipewire.conf" = mkIf cfg.alsa.enable {
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source = "${pkgs.pipewire}/share/alsa/alsa.conf.d/50-pipewire.conf";
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};
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environment.sessionVariables.LD_LIBRARY_PATH =
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lib.optional cfg.jack.enable "/run/current-system/sw/lib/pipewire";
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};
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}
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