Add OutputRate and OutputFormat properties to the D-Bus interface.

dbus-service.c

@@ -1041,6 +1041,8 @@ static void on_dbus_name_acquired(GDBusConnection *connection, const gchar *name
 #endif
 
   shairport_sync_set_service_name(SHAIRPORT_SYNC(shairportSyncSkeleton), config.service_name);
+  shairport_sync_set_output_rate(SHAIRPORT_SYNC(shairportSyncSkeleton), config.output_rate);
+  shairport_sync_set_output_format(SHAIRPORT_SYNC(shairportSyncSkeleton), sps_format_description_string(config.output_format));
 
 #ifdef CONFIG_AIRPLAY_2
   shairport_sync_set_protocol(SHAIRPORT_SYNC(shairportSyncSkeleton), "AirPlay 2");

org.gnome.ShairportSync.xml

@@ -25,6 +25,8 @@
     <property name="VersionString" type="s" access="read" />
     <property name="Protocol" type="s" access="read" />
     <property name="ServiceName" type="s" access="read" />
+    <property name="OutputFormat" type="s" access="read" />
+    <property name="OutputRate" type="i" access="read" />
   </interface>
   <interface name="org.gnome.ShairportSync.Diagnostics">
     <property name="Verbosity" type="i" access="readwrite" />