大华摄像头应用opencvsharp进行实时监控、监控录像保存和播放

标签：监控 GImg cap Camera VideoCapture opencvsharp new 摄像头

1.配置大华摄像机参数   检查RTSP端口号

 

修改分辨率，在这里我们主要设置【辅码流】

大华RTSP协议解释 访问主码流 rtsp://admin:[email protected]:554/cam/realmonitor?channel=1&subtype=0 访问辅码流 rtsp://admin:[email protected]:554/cam/realmonitor?channel=1&subtype=1   2.opencvsharp引用：

 

3.opencvsharp代码示例：

 

获取视频流：

        private void savestream()
        {
                VideoCapture cap = new VideoCapture();
                cap.Open("rtsp://admin:[email protected]:554/cam/realmonitor?channel=1&subtype=1");
                Mat Camera_GImg = new Mat();
                string path = System.Environment.CurrentDirectory+"\\video\\666.avi";
                OpenCvSharp.Size sz = new OpenCvSharp.Size(640,480);
                VideoWriter vw = new VideoWriter(path, FourCCCalcurator.Run('X', 'V', 'I', 'D'), cap.Fps, sz, true);
            while (true)
            {
                cap.Read(Camera_GImg);
                if (Camera_GImg.Empty())
                { break; }
                else
                { vw.Write(Camera_GImg); }

            }          
        }

播放监控录像：

   private void readvideo()
        {
            byte[] image_byte = new Byte[2048];
            VideoCapture cap = new VideoCapture();
            string path = System.Environment.CurrentDirectory + "\\video\\666.avi";
            cap.Open(path);
            while (true)
            {
                Mat Camera_GImg = new Mat();
                cap.Read(Camera_GImg);
                if (Camera_GImg.Empty())
                {
                    isopen = !isopen;
                    break;
                }
                else
                {
                    image_byte = Camera_GImg.ToBytes();
                    #region 图片嵌入picturebox
                    MemoryStream ms = new MemoryStream(image_byte);
                    ms.Position = 0;
                    img = System.Drawing.Image.FromStream(ms);
                    this.Invoke((EventHandler)delegate//将分线程对主线程的调用委托给主线程
                    {
                        pictureBox1.BackgroundImage = img;
                        pictureBox1.Refresh();
                    });
                    #endregion
                    Camera_GImg.Release();//释放，别等到gc来回收,太占内存
                }
            }
        }

 

标签：监控,GImg,cap,Camera,VideoCapture,opencvsharp,new,摄像头
From： https://www.cnblogs.com/xuexz/p/17904955.html