New wireplumber config

.config/wireplumber/scripts/monitors/libcamera/create-device.lua

@@ -0,0 +1,61 @@
+-- WirePlumber
+--
+-- Copyright © 2023 Collabora Ltd.
+--    @author Ashok Sidipotu <ashok.sidipotu@collabora.com>
+--
+-- SPDX-License-Identifier: MIT
+
+cutils = require ("common-utils")
+mutils = require ("monitor-utils")
+
+log = Log.open_topic ("s-monitors-libcamera")
+
+config = {}
+config.rules = Conf.get_section_as_json ("monitor.libcamera.rules", Json.Array {})
+
+function createLibcamNode (parent, id, type, factory, properties)
+  local registered = mutils:register_cam_node (parent, id, factory, properties)
+  if not registered then
+    source = source or Plugin.find ("standard-event-source")
+    local e = source:call ("create-event", "create-libcamera-device-node",
+      parent, nil)
+    e:set_data ("factory", factory)
+    e:set_data ("node-properties", properties)
+    e:set_data ("node-sub-id", id)
+
+    EventDispatcher.push_event (e)
+  end
+end
+
+SimpleEventHook {
+  name = "monitor/libcamera/create-device",
+  after = "monitor/libcamera/name-device",
+  interests = {
+    EventInterest {
+      Constraint { "event.type", "=", "create-libcamera-device" },
+    },
+  },
+  execute = function(event)
+    local properties = event:get_data ("device-properties")
+    local factory = event:get_data ("factory")
+    local parent = event:get_subject ()
+    local id = event:get_data ("device-sub-id")
+
+    -- apply properties from rules defined in JSON .conf file
+    properties = JsonUtils.match_rules_update_properties (config.rules, properties)
+
+    if cutils.parseBool (properties ["device.disabled"]) then
+      log:notice ("libcam device " .. properties["device.name"] .. " disabled")
+      return
+    end
+    local device = SpaDevice (factory, properties)
+
+    if device then
+      device:connect ("create-object", createLibcamNode)
+      device:activate (Feature.SpaDevice.ENABLED | Feature.Proxy.BOUND)
+      parent:store_managed_object (id, device)
+    else
+      log:warning ("Failed to create '" .. factory .. "' device")
+    end
+  end
+}:register ()