天天向上

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using System;
using System.Threading;
using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;
using System.Windows.Forms;

namespace WaferPositioning
{
    // 同時播放兩支影片
    public class DualVideoPlayer
    {
        private VideoCapture capture1;
        private VideoCapture capture2;
        private ManualResetEvent pauseEvent = new ManualResetEvent(true);
        private bool stopThreads = false;

        public event EventHandler<FrameReadyEventArgs> FrameReady;

        public DualVideoPlayer(string videoFile1, string videoFile2)
        {
            capture1 = new VideoCapture(videoFile1);
            capture2 = new VideoCapture(videoFile2);
        }

        public void Start()
        {
            stopThreads = false;
            pauseEvent.Set(); // Resume if paused
            ThreadPool.QueueUserWorkItem(o => StartVideoPlayback());
        }

        public void Pause()
        {
            pauseEvent.Reset(); // Pause playback
        }

        public void Resume()
        {
            pauseEvent.Set(); // Resume playback
        }

        public void Stop()
        {
            stopThreads = true;
            pauseEvent.Set(); // Resume if paused
        }

        private void StartVideoPlayback()
        {
            while (!stopThreads)
            {
                pauseEvent.WaitOne(); // Pause if signaled

                Mat frame1 = new Mat();
                Mat frame2 = new Mat();

                // Read frames from the video captures
                capture1.Read(frame1);
                capture2.Read(frame2);

                if (!frame1.IsEmpty && !frame2.IsEmpty)
                {
                    FrameReady?.Invoke(this, new FrameReadyEventArgs(frame1, frame2));
                }
                else
                {
                    // End of video, you may want to stop or loop the playback
                    capture1.Set(CapProp.PosFrames, 0);
                    capture2.Set(CapProp.PosFrames, 0);
                }
                Thread.Sleep(33);
                Application.DoEvents(); // Allow UI events to be processed
            }
        }
    }

    public class FrameReadyEventArgs : EventArgs
    {
        public Mat Frame1 { get; }
        public Mat Frame2 { get; }

        public FrameReadyEventArgs(Mat frame1, Mat frame2)
        {
            Frame1 = frame1;
            Frame2 = frame2;
        }
    }
}