From 58babb1e9b3a29c405a54ae44d14e1c299635537 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 3 Apr 2019 03:35:40 +0200
Subject: [PATCH] Backport a Mixbus special-case for plugin-tags

---
 libs/ardour/plugin_manager.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libs/ardour/plugin_manager.cc b/libs/ardour/plugin_manager.cc
index 181516bf0a..6e57f17220 100644
--- a/libs/ardour/plugin_manager.cc
+++ b/libs/ardour/plugin_manager.cc
@@ -1536,6 +1536,14 @@ PluginManager::save_tags ()
 	XMLNode* root = new XMLNode (X_("PluginTags"));
 
 	for (PluginTagList::iterator i = ptags.begin(); i != ptags.end(); ++i) {
+#ifdef MIXBUS
+		if ((*i).type == LADSPA) {
+			uint32_t id = atoi ((*i).unique_id);
+			if (id >= 9300 && id <= 9399) {
+				continue; /* do not write mixbus channelstrip ladspa's in the tagfile */
+			}
+		}
+#endif
 		if ((*i).tagtype == FromFactoryFile || (*i).tagtype == FromUserFile) {
 			/* user file should contain only plugins that are (a) newly user-tagged or (b) previously unknown */
 			continue;