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• Deploy application with accord.video.ffmpeg c#

  8 juillet 2017, par Alex Gimondi

  I’m using accord.video.ffmpeg 3.4.0, downloaded via nuget, to save a video with videorecorder class. If I compile (x86) my solution the application is running smoothly in visual studio, instead if I publish the app (same architecture ) when I try to run the setup.exe it installs the program but suddenly crashes. The problem is in the constructor of a class when I do new videorecorder(). It is like If during the deployment process not all the libraries needed are included.
  Anyonw knows which libraries are missing ?
  Thank,
  Alex

• How to manage Accord.video.ffmpeg frame setting for real time output

  3 décembre 2019, par M.Farrukh

  I am using accord for recoding desktop but i have an issue in making video.
  when video creates I will become to fast or too slow.

  Here is the code :

  VideoFileWriter writer;
  
  writer.Open(path + "\\video.mp4", re.Width - 6, re.Height - 6, 9, VideoCodec.H264, 15000);

  I want to make it as real-time like if I made video of 5 minutes then it will show 5 minutes in the player.

• Record video with Accord.net (AForge)

  17 mai 2017, par ghasem deh

  I used Accord.net (AForge) for connect to the webcam and record video
  But stored videos is slow motion ...
  this my project :

      using AForge.Video;
  
  using AForge.Video.DirectShow;
  
  using AForge.Video.FFMPEG;
  
  using System;
  
  using System.Drawing;
  
  using System.IO;
  
  using System.Threading;
  
  using System.Windows.Forms;
  
  
  
  namespace CaptureWebcam
  
  {
  
      public partial class Form1 : Form
  
      {
  
          private VideoCaptureDeviceForm captureDevice;
  
          private string path = Path.GetDirectoryName(Application.ExecutablePath) + @"\Videos\";
  
          private FilterInfoCollection videoDevice;
  
          private VideoCaptureDevice videoSource;
  
          private VideoFileWriter FileWriter = new VideoFileWriter();
  
          private Bitmap video;
  
          bool isRecord = false;
  
  
  
          public Form1()
  
          {
  
              InitializeComponent();
  
          }
  
  
  
          private void videoSource_NewFrame(object sender, NewFrameEventArgs eventArgs)
  
          {
  
              video = (Bitmap)eventArgs.Frame.Clone();
  
              pictureBox1.Image = (Bitmap)eventArgs.Frame.Clone();
  
          }
  
  
  
          private void btnStartCam_Click(object sender, EventArgs e)
  
          {
  
              videoDevice = new FilterInfoCollection(FilterCategory.VideoInputDevice);
  
              captureDevice = new VideoCaptureDeviceForm();
  
              if (captureDevice.ShowDialog(this) == DialogResult.OK)
  
              {
  
                  videoSource = captureDevice.VideoDevice;
  
                  videoSource = captureDevice.VideoDevice;
  
                  videoSource.NewFrame += new NewFrameEventHandler(videoSource_NewFrame);
  
                  videoSource.Start();
  
                  timer1.Enabled = true;
  
              }
  
              //videoSource.DisplayPropertyPage(IntPtr.Zero);
  
          }
  
  
  
          private Thread workerThread = null;
  
          private bool stopProcess = false;
  
  
  
          private void recordLiveCam()
  
          {
  
              if (!stopProcess)
  
              {
  
                  while (isRecord)
  
                  {
  
                      FileWriter.WriteVideoFrame(video);
  
                  }
  
                  FileWriter.Close();
  
              }
  
              else
  
              {
  
                  workerThread.Abort();
  
              }            
  
          }
  
  
  
          private void btnRecord_Click(object sender, EventArgs e)
  
          {
  
              //try
  
              //{
  
              isRecord = true;
  
              if (!Directory.Exists(path))
  
              {
  
                  Directory.CreateDirectory(path);
  
              }
  
              int h = captureDevice.VideoDevice.VideoResolution.FrameSize.Height;
  
              int w = captureDevice.VideoDevice.VideoResolution.FrameSize.Width;
  
              FileWriter.Open(path + "recorded at " + DateTime.Now.ToString("HH-mm-ss") + ".mp4", w, h, 25, VideoCodec.MPEG4);
  
              stopProcess = false;
  
              workerThread = new Thread(new ThreadStart(recordLiveCam));
  
              workerThread.Start();
  
  
  
              //}
  
              //catch (Exception ex)
  
              //{
  
              //    MessageBox.Show(ex.Message);
  
              //}
  
          }
  
  
  
          private void Form1_Load(object sender, EventArgs e)
  
          {
  
  
  
          }
  
  
  
          private void btnStopRecord_Click(object sender, EventArgs e)
  
          {
  
              stopProcess = true;
  
              isRecord = false;
  
              FileWriter.Close();
  
              workerThread.Abort();
  
              video = null;
  
  
  
          }
  
  
  
          private void btnStopCam_Click(object sender, EventArgs e)
  
          {
  
              try
  
              {
  
                  if (videoSource.IsRunning)
  
                  {
  
                      videoSource.SignalToStop();
  
                      videoSource.Stop();                  
  
                      pictureBox1.Image = null;
  
                      pictureBox1.Invalidate();
  
                      if (FileWriter.IsOpen)
  
                      {
  
                          FileWriter.Close();
  
                          video = null;
  
                      }
  
                  }
  
                  else
  
                      return;
  
              }
  
              catch
  
              {
  
                  videoSource.Stop();
  
                  FileWriter.Close();
  
                  video = null;
  
              }
  
          }
  
  
  
          float fts = 0.0f;
  
          private void timer1_Tick(object sender, EventArgs e)
  
          {
  
              fts = videoSource.FramesReceived;
  
              label1.Text = "Frame Rate : " + fts.ToString("F2") + " fps";
  
          }
  
      }
  
  }

  And when click the btnStopRecord following error :

  Additional information : Attempted to read or write protected memory. This is often an indication that other memory is corrupt.