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