Adding lots of cool stuff to dotfiles

.config/wireplumber/policy.lua.d/00-functions.lua

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+components = {}
+
+function load_module(m, a)
+  assert(type(m) == "string", "module name is mandatory, bail out");
+  if not components[m] then
+    components[m] = { "libwireplumber-module-" .. m, type = "module", args = a }
+  end
+end
+
+function load_optional_module(m, a)
+  assert(type(m) == "string", "module name is mandatory, bail out");
+  if not components[m] then
+    components[m] = { "libwireplumber-module-" .. m, type = "module", args = a, optional = true }
+  end
+end
+
+function load_pw_module(m)
+  assert(type(m) == "string", "module name is mandatory, bail out");
+  if not components[m] then
+    components[m] = { "libpipewire-module-" .. m, type = "pw_module" }
+  end
+end
+
+function load_script(s, a)
+  if not components[s] then
+    components[s] = { s, type = "script/lua", args = a }
+  end
+end
+
+function load_monitor(s, a)
+  load_script("monitors/" .. s .. ".lua", a)
+end
+
+function load_access(s, a)
+  load_script("access/access-" .. s .. ".lua", a)
+end

.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

.config/wireplumber/policy.lua.d/50-endpoints-config.lua

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+-- uncomment to enable role-based endpoints
+-- this is not yet ready for desktop use
+--
+--[[
+
+default_policy.policy.roles = {
+  ["Capture"] = {
+    ["alias"] = { "Multimedia", "Music", "Voice", "Capture" },
+    ["priority"] = 25,
+    ["action.default"] = "cork",
+    ["action.capture"] = "mix",
+    ["media.class"] = "Audio/Source",
+  },
+  ["Multimedia"] = {
+    ["alias"] = { "Movie", "Music", "Game" },
+    ["priority"] = 25,
+    ["action.default"] = "cork",
+  },
+  ["Speech-Low"] = {
+    ["priority"] = 30,
+    ["action.default"] = "cork",
+    ["action.Speech-Low"] = "mix",
+  },
+  ["Custom-Low"] = {
+    ["priority"] = 35,
+    ["action.default"] = "cork",
+    ["action.Custom-Low"] = "mix",
+  },
+  ["Navigation"] = {
+    ["priority"] = 50,
+    ["action.default"] = "duck",
+    ["action.Navigation"] = "mix",
+  },
+  ["Speech-High"] = {
+    ["priority"] = 60,
+    ["action.default"] = "cork",
+    ["action.Speech-High"] = "mix",
+  },
+  ["Custom-High"] = {
+    ["priority"] = 65,
+    ["action.default"] = "cork",
+    ["action.Custom-High"] = "mix",
+  },
+  ["Communication"] = {
+    ["priority"] = 75,
+    ["action.default"] = "cork",
+    ["action.Communication"] = "mix",
+  },
+  ["Emergency"] = {
+    ["alias"] = { "Alert" },
+    ["priority"] = 99,
+    ["action.default"] = "cork",
+    ["action.Emergency"] = "mix",
+  },
+}
+
+default_policy.endpoints = {
+  ["endpoint.capture"] = {
+    ["media.class"] = "Audio/Source",
+    ["role"] = "Capture",
+  },
+  ["endpoint.multimedia"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Multimedia",
+  },
+  ["endpoint.speech_low"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Speech-Low",
+  },
+  ["endpoint.custom_low"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Custom-Low",
+  },
+  ["endpoint.navigation"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Navigation",
+  },
+  ["endpoint.speech_high"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Speech-High",
+  },
+  ["endpoint.custom_high"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Custom-High",
+  },
+  ["endpoint.communication"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Communication",
+  },
+  ["endpoint.emergency"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Emergency",
+  },
+}
+]]--

.config/wireplumber/policy.lua.d/90-enable-all.lua

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+default_policy.enable()