From 4648ac01fec2a24c58d8741fbf4b6e0b2d1b79e8 Mon Sep 17 00:00:00 2001
From: DucDangAnh <ducdanganhit@gmail.com>
Date: Fri, 19 Jun 2020 15:35:34 +0700
Subject: [PATCH] Camera - Add Method Start, Stop, Destructor.

---
 AIParkingApplication/Camera.cs | 33 ++++++++++++++++++---------------
 1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/AIParkingApplication/Camera.cs b/AIParkingApplication/Camera.cs
index d469e6c..c162a69 100644
--- a/AIParkingApplication/Camera.cs
+++ b/AIParkingApplication/Camera.cs
@@ -7,9 +7,8 @@ namespace AIParkingApplication
     public class Camera
     {
         private string streamUrl;
-        private bool isCapturing;
-        private object lockSyncObject;
         private volatile bool isFrameRequested;
+        private Thread readStreamThread;
 
         public event CameraEvent OnVideoFrameReceived;
         public event CameraEvent OnOneVideoFrameRequested;
@@ -17,16 +16,24 @@ namespace AIParkingApplication
         public Camera(string streamUrl)
         {
             this.streamUrl = streamUrl;
-            isCapturing = true;
             isFrameRequested = false;
-            lockSyncObject = new object();
+            readStreamThread = new Thread(new ThreadStart(ReadVideoStream));
+            readStreamThread.IsBackground = true;
         }
 
-        public void Startcapture()
+        ~Camera()
         {
-            Thread readVideoStreamThread = new Thread(new ThreadStart(ReadVideoStream));
-            readVideoStreamThread.IsBackground = true;
-            readVideoStreamThread.Start();
+            Stop();
+        }
+
+        public void Start()
+        {
+            if (!readStreamThread.IsAlive)
+            {
+                readStreamThread = new Thread(new ThreadStart(ReadVideoStream));
+                readStreamThread.IsBackground = true;
+                readStreamThread.Start();
+            }
         }
 
         public void RequestCaptureOneFrame()
@@ -47,10 +54,6 @@ namespace AIParkingApplication
             {
                 Thread.Sleep(50);     //Stream Thread Sleep
                 //Thread.Sleep(40);     //Video Thread Sleep
-                if (!isCapturing)
-                {
-                    continue;
-                }
 
                 if (videoCapture.Read(videoFrame) && videoFrame.Width > 0 && videoFrame.Height > 0)
                 {
@@ -64,11 +67,11 @@ namespace AIParkingApplication
             }
         }
 
-        public void PauseCapture()
+        public void Stop()
         {
-            lock (lockSyncObject)
+            if (readStreamThread.IsAlive)
             {
-                isCapturing = false;
+                readStreamThread.Abort();
             }
         }
     }