monitors/bluez: fix autoswitch A2DP input profiles

Profile autoswitch should support also A2DP profiles with input route,
so the loopback should not assume the source node is SCO one.

Also fix handling of AG SCO output stream nodes, which should not be
hidden as internal.

src/scripts/monitors/bluez.lua

@@ -261,8 +261,11 @@ function createNode(parent, id, type, factory, properties)
   local name_prefix = ((factory:find("sink") and "bluez_output") or
        (factory:find("source") and "bluez_input" or factory))
 
-  -- hide the sco-source node because we use the loopback source instead
-  if factory == "api.bluez5.sco.source" then
+  -- hide the source node because we use the loopback source instead
+  if parent:get_managed_object (LOOPBACK_SOURCE_ID) ~= nil and
+       (factory == "api.bluez5.sco.source" or
+         (factory == "api.bluez5.a2dp.source" and cutils.parseBool (properties["api.bluez5.a2dp-duplex"]))) then
+    properties["bluez5.loopback-target"] = true
     properties["api.bluez5.internal"] = true
     -- add 'internal' to name prefix to not be confused with loopback node
     name_prefix = name_prefix .. "_internal"
@@ -420,8 +423,7 @@ function CreateDeviceLoopbackSource (dev_name, dec_desc, dev_id)
       ["bluez5.loopback"] = true,
       ["filter.smart"] = true,
       ["filter.smart.target"] = Json.Object {
-        ["factory.name"] = "api.bluez5.sco.source",
-        ["device.api"] = "bluez5",
+        ["bluez5.loopback-target"] = true,
         ["bluez5.loopback"] = false,
         ["device.id"] = dev_id
       }