Adding lots of cool stuff to dotfiles

.config/wireplumber/main.lua.d/40-device-defaults.lua

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+device_defaults = {}
+device_defaults.enabled = true
+
+device_defaults.properties = {
+  -- store preferences to the file system and restore them at startup;
+  -- when set to false, default nodes and routes are selected based on
+  -- their priorities and any runtime changes do not persist after restart
+  ["use-persistent-storage"] = true,
+
+  -- the default volumes to apply to ACP device nodes, in the linear scale
+  --["default-volume"] = 0.064,
+  --["default-input-volume"] = 1.0,
+
+  -- Whether to auto-switch to echo cancel sink and source nodes or not
+  ["auto-echo-cancel"] = true,
+
+  -- Sets the default echo-cancel-sink node name to automatically switch to
+  ["echo-cancel-sink-name"] = "echo-cancel-sink",
+
+  -- Sets the default echo-cancel-source node name to automatically switch to
+  ["echo-cancel-source-name"] = "echo-cancel-source",
+}
+
+-- Sets persistent device profiles that should never change when wireplumber is
+-- running, even if a new profile with higher priority becomes available
+device_defaults.persistent_profiles = {
+  {
+    matches = {
+      {
+        -- Matches all devices
+        { "device.name", "matches", "*" },
+      },
+    },
+    profile_names = {
+      "off",
+      "pro-audio"
+    }
+  },
+}
+
+function device_defaults.enable()
+  if device_defaults.enabled == false then
+    return
+  end
+
+  -- Selects appropriate default nodes and enables saving and restoring them
+  load_module("default-nodes", device_defaults.properties)
+
+  -- Selects appropriate profile for devices
+  load_script("policy-device-profile.lua", {
+    persistent = device_defaults.persistent_profiles
+  })
+
+  -- Selects appropriate device routes ("ports" in pulseaudio terminology)
+  -- and enables saving and restoring them together with
+  -- their properties (per-route/port volume levels, channel maps, etc)
+  load_script("policy-device-routes.lua", device_defaults.properties)
+
+  if device_defaults.properties["use-persistent-storage"] then
+    -- Enables functionality to save and restore default device profiles
+    load_module("default-profile")
+  end
+end