proctor

proctor.cs

using Accord.Video.FFMPEG;
using AForge.Video;
using AForge.Video.DirectShow;
using System;
using System.Drawing;
using System.Threading;
using System.Windows.Forms;

class Program
{
    private static VideoFileWriter writer;
    private static Bitmap videoFrame;
    private static Bitmap webcamFrame;
    private static readonly object videoFrameLock = new object();
    private static readonly object webcamFrameLock = new object();
    private static bool isRecording = true;

    static void Main()
    {
        Rectangle bounds = GetScreenBounds();
        int width = bounds.Width;
        int height = bounds.Height;

        writer = new VideoFileWriter();
        writer.Open("desktop_with_webcam.avi", width, height, 10, VideoCodec.MPEG4, 10000000);

        Thread screenThread = new Thread(() => CaptureDesktop(bounds));
        screenThread.Start();

        VideoCaptureDevice videoSource = StartWebCamCapture();
        Thread.Sleep(20000); // Двадцать секунд для записи

        isRecording = false;
        videoSource.SignalToStop();
        videoSource.WaitForStop();
        screenThread.Join(); 

        writer.Close();
        Console.WriteLine("Recording finished.");
    }

    static void CaptureDesktop(Rectangle bounds)
    {
        while (isRecording)
        {
            Bitmap combinedFrame = null;
            lock (videoFrameLock)
            {
                // Создаем битмап с размерами, охватывающими все мониторы
                combinedFrame = new Bitmap(bounds.Width, bounds.Height);
                using (var g = Graphics.FromImage(combinedFrame))
                {
                    // Координаты начала захвата учитывают отрицательные координаты
                    g.CopyFromScreen(bounds.Left, bounds.Top, 0, 0, bounds.Size);

                    lock (webcamFrameLock)
                    {
                        if (webcamFrame != null)
                        {
                            // положение для кадра веб-камеры
                            int x = combinedFrame.Width - webcamFrame.Width - 10;
                            int y = combinedFrame.Height - webcamFrame.Height - 10;
                            g.DrawImage(webcamFrame, x, y, webcamFrame.Width, webcamFrame.Height);
                        }
                    }
                }
            }

            writer.WriteVideoFrame(combinedFrame);
            combinedFrame.Dispose();

            Thread.Sleep(100);
        }
    }


    static VideoCaptureDevice StartWebCamCapture()
    {
        FilterInfoCollection videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
        if (videoDevices.Count == 0)
            throw new ApplicationException("No webcam found.");

        VideoCaptureDevice videoSource = new VideoCaptureDevice(videoDevices[0].MonikerString);
        videoSource.NewFrame += video_NewFrame;
        videoSource.Start();
        return videoSource;
    }

    static Rectangle GetScreenBounds()
    {
        Rectangle bounds = Rectangle.Empty;
        foreach (Screen screen in Screen.AllScreens)
        {
            bounds = Rectangle.Union(bounds, screen.Bounds);
        }
        return bounds;
    }

    static void video_NewFrame(object sender, NewFrameEventArgs eventArgs)
    {
        lock (webcamFrameLock)
        {
            webcamFrame?.Dispose();
            webcamFrame = (Bitmap)eventArgs.Frame.Clone();
        }
    }
}