From 89a7f2aa800c18a2657a4b543224412ad3a12055 Mon Sep 17 00:00:00 2001
From: Neil Dorin <ndorin@pepperdash.com>
Date: Wed, 9 Feb 2022 14:54:19 -0700
Subject: [PATCH] fix(essentials): Add a condition to check for an empty
 configuration.presentation object response and return to avoid null ref ex

---
 .../VideoCodec/CiscoCodec/CiscoSparkCodec.cs                | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/CiscoCodec/CiscoSparkCodec.cs b/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/CiscoCodec/CiscoSparkCodec.cs
index 39b3e167..d9baa070 100644
--- a/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/CiscoCodec/CiscoSparkCodec.cs	
+++ b/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/CiscoCodec/CiscoSparkCodec.cs	
@@ -856,6 +856,12 @@ namespace PepperDash.Essentials.Devices.Common.VideoCodec.Cisco
                     // Check to see if the message contains /Status/Conference/Presentation/LocalInstance and extract source value 
                     var conference = tempCodecStatus.Status.Conference;
 
+                    if (conference.Presentation != null && conference.Presentation.LocalInstance == null)
+                    {
+                        // Handles an empty presentation object response
+                        return;   
+                    }
+
                     if (conference.Presentation.LocalInstance.Count > 0)
                     {
                         if (!string.IsNullOrEmpty(conference.Presentation.LocalInstance[0].ghost))