src: scripts: add static-endpoints.lua script

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

@@ -8,6 +8,28 @@ default_policy.sessions = {
   ["video"] = { ["media.type"] = "Video" },
 }
 
+default_policy.endpoints = {
+  -- [endpoint name] = { endpoint properties }
+  ["endpoint.music"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Music",
+    ["priority"] = 0,
+    ["session.name"] = "audio",
+  },
+  ["endpoint.notifications"] = {
+    ["media.class"] = "Audio/Sink",
+    ["role"] = "Notifications",
+    ["priority"] = 50,
+    ["session.name"] = "audio",
+  },
+  ["endpoint.voice"] = {
+    ["media.class"] = "Audio/Source",
+    ["role"] = "Voice",
+    ["priority"] = 90,
+    ["session.name"] = "audio",
+  },
+}
+
 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
@@ -19,10 +41,14 @@ function default_policy.enable()
   load_module("si-node")
   load_module("si-audio-adapter")
   load_module("si-standard-link")
+  load_module("si-audio-endpoint")
 
   -- Create sessions statically at startup
   load_script("static-sessions.lua", default_policy.sessions)
 
+  -- 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")
 

src/scripts/static-endpoints.lua

+-- WirePlumber
+--
+-- Copyright © 2021 Collabora Ltd.
+--    @author Julian Bouzas <julian.bouzas@collabora.com>
+--
+-- SPDX-License-Identifier: MIT
+
+-- Receive script arguments from config.lua
+local endpoints_config = ...
+
+function createEndpoint (factory_name, properties)
+  -- create endpoint
+  local ep = SessionItem ( factory_name )
+  if not ep then
+    Log.warning (ep, "could not create endpoint of type " .. factory_name)
+    return
+  end
+
+  -- configure endpoint
+  if not ep:configure(properties) then
+    Log.warning(ep, "failed to configure endpoint " .. properties.name)
+    return
+  end
+
+  -- activate and register endpoint
+  ep:activate (Features.ALL, function (item)
+    ep:register ()
+    Log.info(ep, "registered endpoint " .. properties.name)
+  end)
+end
+
+
+for name, properties in pairs(endpoints_config) do
+  properties["name"] = name
+  createEndpoint ("si-audio-endpoint", properties)
+end