From 71e290a8ad78daa2873a12fb89148c9cbf08d2c5 Mon Sep 17 00:00:00 2001
From: George Politis <gp@jitsi.org>
Date: Mon, 24 Nov 2014 13:26:43 +0100
Subject: [PATCH] Run simulcastlayerschanged/ing event handlers only if the
 affected endpoint is in lastN.

---
 videolayout.js | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/videolayout.js b/videolayout.js
index 4f77b8cf7..fbbd9ba63 100644
--- a/videolayout.js
+++ b/videolayout.js
@@ -1542,6 +1542,12 @@ var VideoLayout = (function (my) {
 
     $(document).bind('simulcastlayerschanging', function (event, endpointSimulcastLayers) {
         endpointSimulcastLayers.forEach(function (esl) {
+
+            var resource = esl.endpoint;
+            if (lastNCount < 1 || lastNEndpointsCache.indexOf(resource) === -1) {
+                return;
+            }
+
             var primarySSRC = esl.simulcastLayer.primarySSRC;
 
             // Get session and stream from primary ssrc.
@@ -1589,6 +1595,11 @@ var VideoLayout = (function (my) {
     $(document).bind('simulcastlayerschanged', function (event, endpointSimulcastLayers) {
         endpointSimulcastLayers.forEach(function (esl) {
 
+            var resource = esl.endpoint;
+            if (lastNCount < 1 || lastNEndpointsCache.indexOf(resource) === -1) {
+                return;
+            }
+
             var primarySSRC = esl.simulcastLayer.primarySSRC;
 
             // Get session and stream from primary ssrc.
@@ -1644,15 +1655,14 @@ var VideoLayout = (function (my) {
                     focusedVideoSrc = electedStreamUrl;
                 }
 
-                var jid = ssrc2jid[primarySSRC];
                 var videoId;
-                if(jid == connection.emuc.myroomjid)
+                if(resource == Strophe.getResourceFromJid(connection.emuc.myroomjid))
                 {
                     videoId = "localVideoContainer";
                 }
                 else
                 {
-                    videoId = "participant_" + Strophe.getResourceFromJid(jid);
+                    videoId = "participant_" + resource;
                 }
                 var connectionIndicator = VideoLayout.connectionIndicators[videoId];
                 if(connectionIndicator)