From 779049ed3a6b17dabc79094bf3992733e1879bbf Mon Sep 17 00:00:00 2001
From: Oliver Whyte <oliverw@microsoft.com>
Date: Mon, 22 Aug 2016 14:07:41 -0700
Subject: [PATCH] Remove readonly modifier from mutable reference type fields,
 as per https://msdn.microsoft.com/en-us/library/ms182302.aspx

---
 Windows/VideoFrameAnalyzer/FrameGrabber.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Windows/VideoFrameAnalyzer/FrameGrabber.cs b/Windows/VideoFrameAnalyzer/FrameGrabber.cs
index 0c3dbf2..194d893 100644
--- a/Windows/VideoFrameAnalyzer/FrameGrabber.cs
+++ b/Windows/VideoFrameAnalyzer/FrameGrabber.cs
@@ -128,8 +128,8 @@ namespace VideoFrameAnalyzer
         protected Predicate<VideoFrame> _analysisPredicate = null;
         protected VideoCapture _reader = null;
         protected Timer _timer = null;
-        protected readonly SemaphoreSlim _timerMutex = new SemaphoreSlim(1);
-        protected readonly AutoResetEvent _frameGrabTimer = new AutoResetEvent(false);
+        protected SemaphoreSlim _timerMutex = new SemaphoreSlim(1);
+        protected AutoResetEvent _frameGrabTimer = new AutoResetEvent(false);
         protected bool _stopping = false;
         protected Task _producerTask = null;
         protected Task _consumerTask = null;