Add a couple more audio properties.

1 files changed, 5 insertions, 1 deletions

diff --git a/src/lib/audio_content.h b/src/lib/audio_content.h
index 82c95a513..95231a7d7 100644
--- a/src/lib/audio_content.h
+++ b/src/lib/audio_content.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -77,6 +77,10 @@ public:
 
 	std::string processing_description () const;
 
+protected:
+
+	void add_properties (std::list<std::pair<std::string, std::string> > &) const;
+
 private:
 	/** Gain to apply to audio in dB */
 	double _audio_gain;