Adding lots of cool stuff to dotfiles

.config/wireplumber/policy.lua.d/10-default-policy.lua

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+default_policy = {}
+default_policy.enabled = true
+default_policy.properties = {}
+default_policy.endpoints = {}
+
+default_policy.policy = {
+  ["move"] = true,   -- moves session items when metadata target.node changes
+  ["follow"] = true, -- moves session items to the default device when it has changed
+
+  -- Whether to forward the ports format of filter stream nodes to their
+  -- associated filter device nodes. This is needed for application to stream
+  -- surround audio if echo-cancel is enabled.
+  ["filter.forward-format"] = false,
+
+  -- Set to 'true' to disable channel splitting & merging on nodes and enable
+  -- passthrough of audio in the same format as the format of the device.
+  -- Note that this breaks JACK support; it is generally not recommended
+  ["audio.no-dsp"] = false,
+
+  -- how much to lower the volume of lower priority streams when ducking
+  -- note that this is a linear volume modifier (not cubic as in pulseaudio)
+  ["duck.level"] = 0.3,
+}
+
+bluetooth_policy = {}
+
+bluetooth_policy.policy = {
+  -- Whether to store state on the filesystem.
+  ["use-persistent-storage"] = true,
+
+  -- Whether to use headset profile in the presence of an input stream.
+  ["media-role.use-headset-profile"] = true,
+
+  -- Application names correspond to application.name in stream properties.
+  -- Applications which do not set media.role but which should be considered
+  -- for role based profile switching can be specified here.
+  ["media-role.applications"] = {
+    "Firefox", "Chromium input", "Google Chrome input", "Brave input",
+    "Microsoft Edge input", "Vivaldi input", "ZOOM VoiceEngine",
+    "Telegram Desktop", "telegram-desktop", "linphone", "Mumble",
+    "WEBRTC VoiceEngine", "Skype", "Firefox Developer Edition",
+  },
+}
+
+function default_policy.enable()
+  if default_policy.enabled == false then
+    return
+  end
+
+  -- Session item factories, building blocks for the session management graph
+  -- Do not disable these unless you really know what you are doing
+  load_module("si-node")
+  load_module("si-audio-adapter")
+  load_module("si-standard-link")
+  load_module("si-audio-endpoint")
+
+  -- API to access default nodes from scripts
+  load_module("default-nodes-api")
+
+  -- API to access mixer controls, needed for volume ducking
+  load_module("mixer-api")
+
+  -- Create endpoints statically at startup
+  load_script("static-endpoints.lua", default_policy.endpoints)
+
+  -- Create items for nodes that appear in the graph
+  load_script("create-item.lua", default_policy.policy)
+
+  -- Link nodes to each other to make media flow in the graph
+  load_script("policy-node.lua", default_policy.policy)
+
+  -- Link client nodes with endpoints to make media flow in the graph
+  load_script("policy-endpoint-client.lua", default_policy.policy)
+  load_script("policy-endpoint-client-links.lua", default_policy.policy)
+
+  -- Link endpoints with device nodes to make media flow in the graph
+  load_script("policy-endpoint-device.lua", default_policy.policy)
+
+  -- Switch bluetooth profile based on media.role
+  load_script("policy-bluetooth.lua", bluetooth_policy.policy)
+end