config: Add new 'node.features.audio.mono' setting

This setting allows users to toggle between MONO audio or not at runtime.

po/conf.pot

@@ -153,6 +153,16 @@ msgstr ""
 msgid "Monitor ports"
 msgstr ""
 
+#. /wireplumber.settings.schema/node.features.audio.mono/description
+#: wireplumber.conf
+msgid "Configure all audio nodes in MONO"
+msgstr ""
+
+#. /wireplumber.settings.schema/node.features.audio.mono/name
+#: wireplumber.conf
+msgid "Mono"
+msgstr ""
+
 #. /wireplumber.settings.schema/node.features.audio.no-dsp/description
 #: wireplumber.conf
 msgid "Do not convert audio to F32 format"

src/config/wireplumber.conf

@@ -932,6 +932,12 @@ wireplumber.settings.schema = {
     type = "bool"
     default = false
   }
+  node.features.audio.mono = {
+    name = "Mono"
+    description = "Configure all audio nodes in MONO"
+    type = "bool"
+    default = false
+  }
   node.stream.restore-props = {
     name = "Restore properties"
     description = "Remember and restore properties of streams"

src/scripts/node/create-item.lua

@@ -39,6 +39,8 @@ function configProperties (node)
       Settings.get_boolean ("node.features.audio.monitor-ports")
   properties ["item.features.control-port"] =
       Settings.get_boolean ("node.features.audio.control-port")
+  properties ["item.features.mono"] =
+      Settings.get_boolean ("node.features.audio.mono")
   properties ["node.id"] = node ["bound-id"]
 
   -- set the default media.role, if configured