using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;
using AForge.Video;
using AForge.Video.DirectShow;
using AForge.Vision.Motion;
using AForge.Imaging;
using System.Collections;


namespace VideoPlayer
{
    public partial class VideoPlayerForm : Form
    {
        private FileVideoSource videoSource;

        private int frameCount;

        private Boolean motionProcessing = false;

        private Boolean videoPaused = false;

        private MotionDetector motionDetector;

        public VideoPlayerForm()
        {
            InitializeComponent();

            motionDetector = new MotionDetector(new SimpleBackgroundModelingDetector(true), new MotionBorderHighlighting(Color.Red));

        }

        private void loadButton_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                loadVideoFromFile(openFileDialog1.FileName);               
            }
        }

        private void loadVideoFromFile(String fileName)
        {
            videoSource = new FileVideoSource(fileName);

            // New frame event handler, which is invoked on each new available video frame
            videoSource.NewFrame += new NewFrameEventHandler(video_NewFrame);

         //   videoSource.PlayingFinished += new PlayingFinishedEventHandler(video_Finished);

        }

        private void startButton_Click(object sender, EventArgs e)
        {
            frameCount = 0;
            videoSource.Start();
        }

        private void pauseButton_Click(object sender, EventArgs e)
        {
            videoPaused = !videoPaused;
        }


        // New frame event handler, which is invoked on each new available video frame
        private void video_NewFrame(object sender, NewFrameEventArgs eventArgs)
        {
            // Get new frame
            Bitmap frame = (Bitmap)(eventArgs.Frame.Clone());

            // Display the frame
            if (!motionProcessing)
            {
                if (!videoPaused)
                    pictureBox1.Image = frame;
            }
            else
            {
                if (!videoPaused)
                {
                    // Perform motion detection

                    BitmapData data = frame.LockBits(new Rectangle(0, 0, frame.Width, frame.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                    UnmanagedImage unmanagedFrame = new UnmanagedImage(data);

                    motionDetector.ProcessFrame(unmanagedFrame);

                    UnmanagedImage motionFrame = motionDetector.MotionDetectionAlgorthm.MotionFrame;

                    motionDetector.MotionProcessingAlgorithm.ProcessFrame(unmanagedFrame, motionFrame);

                    Bitmap managedFrame = unmanagedFrame.ToManagedImage();

                    pictureBox1.Image = managedFrame;

                    frame.UnlockBits(data);
                }

            }

            frameLabel.Text = "Frame: " + frameCount++;
        }

        private void motionDetectButton_Click(object sender, EventArgs e)
        {
            // Motion process frames
            motionProcessing = !motionProcessing;
        }

        private void stopButton_Click_1(object sender, EventArgs e)
        {
            videoSource.Stop();
        }

      
        private void VideoPlayerForm_FormClosed(object sender, FormClosedEventArgs e)
        {
            videoSource.Stop();
        }
    }
}