New wireplumber config

.config/wireplumber/scripts/monitors/alsa-midi.lua

@@ -5,11 +5,25 @@
 --
 -- SPDX-License-Identifier: MIT
 
--- Receive script arguments from config.lua
-local config = ... or {}
+cutils = require ("common-utils")
+log = Log.open_topic ("s-monitors")
 
--- ensure config.properties is not nil
-config.properties = config.properties or {}
+defaults = {}
+defaults.node_properties = {  -- Midi bridge node properties
+  ["factory.name"] = "api.alsa.seq.bridge",
+
+  -- Name set for the node with ALSA MIDI ports
+  ["node.name"] = "Midi-Bridge",
+
+  -- Set priorities so that it can be used as a fallback driver (see pipewire#3562)
+  ["priority.session"] = "100",
+  ["priority.driver"] = "1",
+}
+
+config = {}
+config.monitoring = Core.test_feature ("monitor.alsa-midi.monitoring")
+config.node_properties = Conf.get_section_as_properties (
+    "monitor.alsa-midi.properties", defaults.node_properties)
 
 SND_PATH = "/dev/snd"
 SEQ_NAME = "seq"
@@ -19,18 +33,10 @@ midi_node = nil
 fm_plugin = nil
 
 function CreateMidiNode ()
-  -- Midi properties
-  local props = {}
-  if type(config.properties["alsa.midi.node-properties"]) == "table" then
-     props = config.properties["alsa.midi.node-properties"]
-  end
-  props["factory.name"] = "api.alsa.seq.bridge"
-  props["node.name"] = props["node.name"] or "Midi-Bridge"
-
   -- create the midi node
-  local node = Node("spa-node-factory", props)
+  local node = Node("spa-node-factory", config.node_properties)
   node:activate(Feature.Proxy.BOUND, function (n)
-    Log.info ("activated Midi bridge")
+    log:info ("activated Midi bridge")
   end)
 
   return node;
@@ -38,7 +44,7 @@ end
 
 if GLib.access (SND_SEQ_PATH, "rw") then
   midi_node = CreateMidiNode ()
-elseif config.properties["alsa.midi.monitoring"] then
+elseif config.monitoring then
   fm_plugin = Plugin.find("file-monitor-api")
 end