X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=libs%2Fsurfaces%2Fosc%2Fosc_cue_observer.cc;h=7d027b4f188eb0464972b2bc1b06468936e98de0;hb=b694ee9e534441724977157e5bc226d9a2d8fb44;hp=11d62073cf8fd4e3746d05b6c399dacbbe348146;hpb=3ab4a1d1475db9fb8a65fdb8e885b530b742dfc1;p=ardour.git

diff --git a/libs/surfaces/osc/osc_cue_observer.cc b/libs/surfaces/osc/osc_cue_observer.cc
index 11d62073cf..7d027b4f18 100644
--- a/libs/surfaces/osc/osc_cue_observer.cc
+++ b/libs/surfaces/osc/osc_cue_observer.cc
@@ -49,6 +49,7 @@ OSCCueObserver::OSCCueObserver (boost::shared_ptr<Stripable> s, std::vector<boos
 	send_change_message ("/cue/mute", 0, _strip->mute_control());
 
 	gain_timeout.push_back (0);
+	_last_gain.push_back (0.0);
 	_strip->gain_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCCueObserver::send_gain_message, this, 0, _strip->gain_control()), OSC::instance());
 	send_gain_message (0, _strip->gain_control());
 
@@ -132,6 +133,7 @@ OSCCueObserver::send_init()
 
 			if (send->gain_control()) {
 				gain_timeout.push_back (0);
+				_last_gain.push_back (0.0);
 				send->gain_control()->Changed.connect (send_connections, MISSING_INVALIDATOR, boost::bind (&OSCCueObserver::send_gain_message, this, i + 1, send->gain_control()), OSC::instance());
 				send_gain_message (i + 1, send->gain_control());
 			}
@@ -213,6 +215,11 @@ OSCCueObserver::text_with_id (string path, uint32_t id, string val)
 void
 OSCCueObserver::send_gain_message (uint32_t id,  boost::shared_ptr<Controllable> controllable)
 {
+	if (_last_gain[id] != controllable->get_value()) {
+		_last_gain[id] = controllable->get_value();
+	} else {
+		return;
+	}
 	string path = "/cue";
 	if (id) {
 		path = "/cue/send";