[raop] Add option to make an Airplay speaker permanent in the speaker list (issue #496)

forked-daapd.conf.in

@@ -246,6 +246,11 @@ audio {
 	# speaker list
 #	exclude = false
 
+	# Enable this option to keep a particular AirPlay device in the speaker
+	# list and thus ignore mdns notifications about it no longer being
+	# present. The speaker will remain until restart of forked-daapd.
+#	permanent = false
+
 	# AirPlay password
 #	password = "s1kr3t"
 #}

src/outputs/raop.c

@@ -4592,6 +4592,12 @@ raop_device_cb(const char *name, const char *type, const char *domain, const cha
     {
       DPRINTF(E_LOG, L_RAOP, "Excluding AirPlay device '%s' as set in config\n", at_name);
 
+      return;
+    }
+  if (airplay && cfg_getbool(airplay, "permanent") && (port < 0))
+    {
+      DPRINTF(E_INFO, L_RAOP, "AirPlay device '%s' disappeared, but set as permanent in config\n", at_name);
+
       return;
     }