From 22f342c8d89d2e865dc0a397c83855ffa9310072 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 5 Oct 2016 13:23:39 +0200
Subject: [PATCH] add API to list Vamp Plugins

---
 libs/ardour/ardour/lua_api.h | 6 ++++++
 libs/ardour/lua_api.cc       | 7 +++++++
 libs/ardour/luabindings.cc   | 1 +
 3 files changed, 14 insertions(+)

diff --git a/libs/ardour/ardour/lua_api.h b/libs/ardour/ardour/lua_api.h
index 7735d58d7c..a76a0cfe78 100644
--- a/libs/ardour/ardour/lua_api.h
+++ b/libs/ardour/ardour/lua_api.h
@@ -176,6 +176,12 @@ namespace ARDOUR { namespace LuaAPI {
 		public:
 			Vamp (const std::string&, float sample_rate);
 			~Vamp ();
+
+			/** Search for all available available Vamp plugins.
+			 * @returns list of plugin-keys
+			 */
+			static std::vector<std::string> list_plugins ();
+
 			::Vamp::Plugin* plugin () { return _plugin; }
 
 			/** high-level abstraction to process a single channel of the given Readable.
diff --git a/libs/ardour/lua_api.cc b/libs/ardour/lua_api.cc
index 3fc5a5cf89..4607fd1abb 100644
--- a/libs/ardour/lua_api.cc
+++ b/libs/ardour/lua_api.cc
@@ -539,6 +539,13 @@ void LuaTableRef::assign (luabridge::LuaRef* rv, T key, const LuaTableEntry& s)
 	}
 }
 
+std::vector<std::string>
+LuaAPI::Vamp::list_plugins ()
+{
+	using namespace ::Vamp::HostExt;
+	PluginLoader* loader (PluginLoader::getInstance());
+	return loader->listPlugins ();
+}
 
 LuaAPI::Vamp::Vamp (const std::string& key, float sample_rate)
 	: _plugin (0)
diff --git a/libs/ardour/luabindings.cc b/libs/ardour/luabindings.cc
index 8868e04afd..6caff05e79 100644
--- a/libs/ardour/luabindings.cc
+++ b/libs/ardour/luabindings.cc
@@ -1615,6 +1615,7 @@ LuaBindings::common (lua_State* L)
 
 		.beginClass <ARDOUR::LuaAPI::Vamp> ("Vamp")
 		.addConstructor <void (*) (const std::string&, float)> ()
+		.addStaticFunction ("list_plugins", &ARDOUR::LuaAPI::Vamp::list_plugins)
 		.addFunction ("plugin", &ARDOUR::LuaAPI::Vamp::plugin)
 		.addFunction ("analyze", &ARDOUR::LuaAPI::Vamp::analyze)
 		.addFunction ("reset", &ARDOUR::LuaAPI::Vamp::reset)