[cast] Add option to exclude speakers (closes #659)

forked-daapd.conf.in

@@ -257,6 +257,14 @@ audio {
 #	password = "s1kr3t"
 #}
 
+# Chromecast settings
+# (make sure you get the capitalization of the device name right)
+#chromecast "My Chromecast device" {
+	# Enable this option to exclude a particular device from the speaker
+	# list
+#	exclude = false
+#}
+
 # Spotify settings (only have effect if Spotify enabled - see README/INSTALL)
 spotify {
 	# Directory where user settings should be stored (credentials)

src/conffile.c

@@ -127,6 +127,13 @@ static cfg_opt_t sec_airplay[] =
     CFG_END()
   };
 
+/* Chromecast device section structure */
+static cfg_opt_t sec_chromecast[] =
+  {
+    CFG_BOOL("exclude", cfg_false, CFGF_NONE),
+    CFG_END()
+  };
+
 /* FIFO section structure */
 static cfg_opt_t sec_fifo[] =
   {
@@ -178,6 +185,7 @@ static cfg_opt_t toplvl_cfg[] =
     CFG_SEC("library", sec_library, CFGF_NONE),
     CFG_SEC("audio", sec_audio, CFGF_NONE),
     CFG_SEC("airplay", sec_airplay, CFGF_MULTI | CFGF_TITLE),
+    CFG_SEC("chromecast", sec_chromecast, CFGF_MULTI | CFGF_TITLE),
     CFG_SEC("fifo", sec_fifo, CFGF_NONE),
     CFG_SEC("spotify", sec_spotify, CFGF_NONE),
     CFG_SEC("sqlite", sec_sqlite, CFGF_NONE),

src/outputs/cast.c

@@ -1245,6 +1245,7 @@ cast_device_cb(const char *name, const char *type, const char *domain, const cha
 {
   struct output_device *device;
   const char *friendly_name;
+  cfg_t *chromecast;
   uint32_t id;
 
   id = djb_hash(name, strlen(name));
@@ -1260,6 +1261,13 @@ cast_device_cb(const char *name, const char *type, const char *domain, const cha
 
   DPRINTF(E_DBG, L_CAST, "Event for Chromecast device '%s' (port %d, id %" PRIu32 ")\n", name, port, id);
 
+  chromecast = cfg_gettsec(cfg, "chromecast", name);
+  if (chromecast && cfg_getbool(chromecast, "exclude"))
+    {
+      DPRINTF(E_LOG, L_CAST, "Excluding Chromecast device '%s' as set in config\n", name);
+      return;
+    }
+
   device = calloc(1, sizeof(struct output_device));
   if (!device)
     {