341 lines
11 KiB
Nix
341 lines
11 KiB
Nix
# pipewire example session manager.
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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.media-session;
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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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# Helpers for generating the pipewire JSON config file
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mkSPAValueString = v:
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if builtins.isList v then "[${lib.concatMapStringsSep " " mkSPAValueString v}]"
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else if lib.types.attrs.check v then
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"{${lib.concatStringsSep " " (mkSPAKeyValue v)}}"
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else lib.generators.mkValueStringDefault { } v;
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mkSPAKeyValue = attrs: map (def: def.content) (
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lib.sortProperties
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(
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lib.mapAttrsToList
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(k: v: lib.mkOrder (v._priority or 1000) "${lib.escape [ "=" ] k} = ${mkSPAValueString (v._content or v)}")
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attrs
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)
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);
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toSPAJSON = attrs: lib.concatStringsSep "\n" (mkSPAKeyValue attrs);
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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.media-session = {
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enable = mkOption {
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type = types.bool;
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default = config.services.pipewire.enable;
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defaultText = "config.services.pipewire.enable";
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description = "Example pipewire session manager";
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};
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package = mkOption {
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type = types.package;
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default = pkgs.pipewire.mediaSession;
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example = literalExample "pkgs.pipewire.mediaSession";
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description = ''
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The pipewire-media-session derivation to use.
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'';
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};
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config = mkOption {
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type = types.attrs;
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description = ''
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Configuration for the media session core.
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'';
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default = {
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# media-session config file
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properties = {
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# Properties to configure the session and some
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# modules
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#mem.mlock-all = false;
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#context.profile.modules = "default,rtkit";
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};
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spa-libs = {
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# Mapping from factory name to library.
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"api.bluez5.*" = "bluez5/libspa-bluez5";
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"api.alsa.*" = "alsa/libspa-alsa";
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"api.v4l2.*" = "v4l2/libspa-v4l2";
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"api.libcamera.*" = "libcamera/libspa-libcamera";
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};
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modules = {
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# These are the modules that are enabled when a file with
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# the key name is found in the media-session.d config directory.
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# the default bundle is always enabled.
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default = [
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"flatpak" # manages flatpak access
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"portal" # manage portal permissions
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"v4l2" # video for linux udev detection
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#"libcamera" # libcamera udev detection
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"suspend-node" # suspend inactive nodes
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"policy-node" # configure and link nodes
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#"metadata" # export metadata API
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#"default-nodes" # restore default nodes
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#"default-profile" # restore default profiles
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#"default-routes" # restore default route
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#"streams-follow-default" # move streams when default changes
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#"alsa-seq" # alsa seq midi support
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#"alsa-monitor" # alsa udev detection
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#"bluez5" # bluetooth support
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#"restore-stream" # restore stream settings
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];
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"with-audio" = [
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"metadata"
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"default-nodes"
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"default-profile"
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"default-routes"
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"alsa-seq"
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"alsa-monitor"
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];
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"with-alsa" = [
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"with-audio"
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];
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"with-jack" = [
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"with-audio"
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];
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"with-pulseaudio" = [
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"with-audio"
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"bluez5"
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"restore-stream"
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"streams-follow-default"
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];
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};
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};
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};
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alsaMonitorConfig = mkOption {
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type = types.attrs;
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description = ''
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Configuration for the alsa monitor.
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'';
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default = {
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# alsa-monitor config file
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properties = {
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#alsa.jack-device = true
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};
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rules = [
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# an array of matches/actions to evaluate
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{
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# rules for matching a device or node. It is an array of
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# properties that all need to match the regexp. If any of the
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# matches work, the actions are executed for the object.
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matches = [
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{
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# this matches all cards
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device.name = "~alsa_card.*";
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}
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];
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actions = {
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# actions can update properties on the matched object.
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update-props = {
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api.alsa.use-acp = true;
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#api.alsa.use-ucm = true;
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#api.alsa.soft-mixer = false;
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#api.alsa.ignore-dB = false;
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#device.profile-set = "profileset-name";
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#device.profile = "default profile name";
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api.acp.auto-profile = false;
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api.acp.auto-port = false;
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#device.nick = "My Device";
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};
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};
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}
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{
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matches = [
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{
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# matches all sinks
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node.name = "~alsa_input.*";
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}
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{
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# matches all sources
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node.name = "~alsa_output.*";
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}
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];
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actions = {
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update-props = {
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#node.nick = "My Node";
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#node.nick = null;
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#priority.driver = 100;
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#priority.session = 100;
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#node.pause-on-idle = false;
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#resample.quality = 4;
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#channelmix.normalize = false;
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#channelmix.mix-lfe = false;
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#audio.channels = 2;
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#audio.format = "S16LE";
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#audio.rate = 44100;
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#audio.position = "FL,FR";
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#api.alsa.period-size = 1024;
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#api.alsa.headroom = 0;
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#api.alsa.disable-mmap = false;
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#api.alsa.disable-batch = false;
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};
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};
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}
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];
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};
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};
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bluezMonitorConfig = mkOption {
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type = types.attrs;
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description = ''
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Configuration for the bluez5 monitor.
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'';
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default = {
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# bluez-monitor config file
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properties = {
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# msbc is not expected to work on all headset + adapter combinations.
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#bluez5.msbc-support = true;
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#bluez5.sbc-xq-support = true;
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# Enabled headset roles (default: [ hsp_hs hfp_ag ]), this
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# property only applies to native backend. Currently some headsets
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# (Sony WH-1000XM3) are not working with both hsp_ag and hfp_ag
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# enabled, disable either hsp_ag or hfp_ag to work around it.
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#
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# Supported headset roles: hsp_hs (HSP Headset),
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# hsp_ag (HSP Audio Gateway),
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# hfp_ag (HFP Audio Gateway)
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#bluez5.headset-roles = [ "hsp_hs" "hsp_ag" "hfp_ag" ];
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# Enabled A2DP codecs (default: all)
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#bluez5.codecs = [ "sbc" "aac" "ldac" "aptx" "aptx_hd" ];
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};
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rules = [
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# an array of matches/actions to evaluate
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{
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# rules for matching a device or node. It is an array of
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# properties that all need to match the regexp. If any of the
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# matches work, the actions are executed for the object.
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matches = [
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{
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# this matches all cards
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device.name = "~bluez_card.*";
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}
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];
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actions = {
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# actions can update properties on the matched object.
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update-props = {
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#device.nick = "My Device";
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};
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};
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}
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{
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matches = [
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{
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# matches all sinks
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node.name = "~bluez_input.*";
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}
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{
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# matches all sources
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node.name = "~bluez_output.*";
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}
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];
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actions = {
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update-props = {
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#node.nick = "My Node"
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#node.nick = null;
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#priority.driver = 100;
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#priority.session = 100;
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#node.pause-on-idle = false;
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#resample.quality = 4;
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#channelmix.normalize = false;
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#channelmix.mix-lfe = false;
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};
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};
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}
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];
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};
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};
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v4l2MonitorConfig = mkOption {
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type = types.attrs;
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description = ''
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Configuration for the V4L2 monitor.
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'';
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default = {
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# v4l2-monitor config file
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properties = {
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};
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rules = [
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# an array of matches/actions to evaluate
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{
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# rules for matching a device or node. It is an array of
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# properties that all need to match the regexp. If any of the
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# matches work, the actions are executed for the object.
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matches = [
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{
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# this matches all devices
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device.name = "~v4l2_device.*";
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}
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];
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actions = {
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# actions can update properties on the matched object.
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update-props = {
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#device.nick = "My Device";
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};
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};
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}
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{
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matches = [
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{
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# matches all sinks
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node.name = "~v4l2_input.*";
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}
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{
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# matches all sources
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node.name = "~v4l2_output.*";
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}
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];
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actions = {
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update-props = {
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#node.nick = "My Node";
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#node.nick = null;
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#priority.driver = 100;
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#priority.session = 100;
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#node.pause-on-idle = true;
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};
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};
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}
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];
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};
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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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environment.systemPackages = [ cfg.package ];
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services.pipewire.sessionManagerExecutable = "${cfg.package}/bin/pipewire-media-session";
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environment.etc."pipewire/media-session.d/media-session.conf" = { text = toSPAJSON cfg.config; };
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environment.etc."pipewire/media-session.d/v4l2-monitor.conf" = { text = toSPAJSON cfg.v4l2MonitorConfig; };
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environment.etc."pipewire/media-session.d/with-alsa" = mkIf config.services.pipewire.alsa.enable { text = ""; };
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environment.etc."pipewire/media-session.d/alsa-monitor.conf" = mkIf config.services.pipewire.alsa.enable { text = toSPAJSON cfg.alsaMonitorConfig; };
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environment.etc."pipewire/media-session.d/with-pulseaudio" = mkIf config.services.pipewire.pulse.enable { text = ""; };
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environment.etc."pipewire/media-session.d/bluez-monitor.conf" = mkIf config.services.pipewire.pulse.enable { text = toSPAJSON cfg.bluezMonitorConfig; };
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environment.etc."pipewire/media-session.d/with-jack" = mkIf config.services.pipewire.jack.enable { text = ""; };
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};
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}
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