send sustain=off and all-notes-off when a MIDI track is muted (may fix #4295)

git-svn-id: svn://localhost/ardour2/branches/3.0@11005 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 3 insertions, 1 deletions

diff --git a/libs/ardour/ardour/route.h b/libs/ardour/ardour/route.h
index 2df8ce4414..7d93c0c68b 100644
--- a/libs/ardour/ardour/route.h
+++ b/libs/ardour/ardour/route.h
@@ -140,7 +140,7 @@ class Route : public SessionObject, public Automatable, public RouteGroupMember,
 
 	bool muted () const;
 	void set_mute (bool yn, void* src);
-
+	
 	/* controls use set_solo() to modify this route's solo state
 	 */
 
@@ -468,6 +468,8 @@ class Route : public SessionObject, public Automatable, public RouteGroupMember,
 	boost::shared_ptr<MuteControllable> _mute_control;
 	boost::shared_ptr<MuteMaster> _mute_master;
 
+	virtual void act_on_mute () {}
+
 	std::string    _comment;
 	bool           _have_internal_generator;
 	bool           _solo_safe;