Emgu.CV 播放视频-本地文件/RTSP流
using Emgu.CV; using System; using System.Drawing; using System.Threading; using System.Windows.Forms; namespace WindowsFormsApplication1 { public partial class Form1 : Form { Emgu.CV.Capture cap; public Form1() { InitializeComponent(); //cap = new Emgu.CV.Capture("F:\\test.avi"); cap = new Emgu.CV.Capture("rtsp://192.168.1.6............."); cap.ImageGrabbed += capture_ImageGrabbed; cap.Start(); } private delegate void SetPicVideo(Bitmap val);//跨线程修改图片框 private object lockObj = new object(); private Thread SetPicVideoThread; Bitmap bmpVideo = null; private void capture_ImageGrabbed(object sender, EventArgs e) { try { Mat frame = new Mat(); //lock (lockObj) { if (cap != null) { if (!cap.Retrieve(frame)) { frame.Dispose(); return; } if (frame.IsEmpty) return; bmpVideo = frame.Bitmap; SetPicVideoThread = new Thread(new ThreadStart(setPicVideo)); SetPicVideoThread.IsBackground = true; SetPicVideoThread.Start(); } } //frame.Dispose(); } catch (Exception ex) { } } void SetPic(Bitmap val) { if (val != null) { this.pictureBox1.Image = val; } } private void setPicVideo() { if (pictureBox1.InvokeRequired) { SetPicVideo d = new SetPicVideo(SetPic); object[] arg = new object[] { bmpVideo };//要传入的参数值 this.Invoke(d, arg); } else { SetPic(bmpVideo); } } private void Form1_FormClosing(object sender, FormClosingEventArgs e) { cap.Stop(); } } }
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