fix plugin silence runs (e.g. during audition)

[ardour.git] / libs / ardour / panner.cc

diff --git a/libs/ardour/panner.cc b/libs/ardour/panner.cc
index 6f3aec4646931007ebdbf4bf462b161de67f7460..c88fbe44f430e1a9f679dfcc84365d611e4e1417 100644 (file)
--- a/libs/ardour/panner.cc
+++ b/libs/ardour/panner.cc
@@ -28,6 +28,7 @@ using namespace std;
 using namespace ARDOUR;
 
 Panner::Panner (boost::shared_ptr<Pannable> p)
+       : _frozen (0)
 {
        // boost_debug_shared_ptr_mark_interesting (this, "panner");
        _pannable = p;
@@ -118,3 +119,17 @@ Panner::set_state (XMLNode const &, int)
 {
        return 0;
 }
+
+void
+Panner::freeze ()
+{
+       _frozen++;
+}
+
+void
+Panner::thaw ()
+{
+       if (_frozen > 0.0) {
+               _frozen--;
+       }
+}