How to fix Basler AviWriter low performance

manpreet Best Answer 2 years ago

Maybe someone could help with the following problem. I need to write a viewer for Basler Usb cameras which will be able to write video to avi file using the selected codec. I'm using pylon sdk for creating application. And I faced the following problem - AviWriter object provided by pylon libraries doesn't write frames to avi file as effective as standard pylon viewer does. For testing I have chosen the following code sample which has been provided with pylon SDK:

    internal static void Main()
    {

        int exitCode = 0;
        int counter = 0;

        try
        {

            using (Camera camera = new Camera())
            {

                camera.Open();

                camera.Parameters[PLCameraInstance.MaxNumBuffer].SetValue(1000);


                using (AviVideoWriter writer = new AviVideoWriter())
                {


                    byte[] ar = { };
                    writer.Create("test.avi", 35, PixelType.BGR8packed, 1280, 960, ImageOrientation.BottomUp, "msvc", 100, 0, 1, ref ar, true, (IntPtr)null);


                    camera.StreamGrabber.Start(1000); //1000 frames are to be grabbed

                    Console.WriteLine("Please wait. Images are being grabbed.");

                    while (camera.StreamGrabber.IsGrabbing)
                    {

                        IGrabResult grabResult = camera.StreamGrabber.RetrieveResult(5000, TimeoutHandling.ThrowException);


                        if (grabResult.GrabSucceeded)
                        {

                            ++counter;
                            writer.Write(grabResult);
                            Console.WriteLine("------->images written" + counter); 
                            Console.WriteLine("------->empty buffers" + camera.Parameters[PLCameraInstance.NumEmptyBuffers].GetValue()); //how many empty buffers left
                            grabResult.Dispose();
                        }
                        else
                        {
                            Console.WriteLine("Error: {0} {1}", grabResult.ErrorCode, grabResult.ErrorDescription);
                        }
                    }


                    camera.StreamGrabber.Stop();


                    writer.Close();
                }


                camera.Close();
            }
        }
        catch (Exception e)
        {
            Console.Error.WriteLine("Exception: {0}"
                                                

                                                                                                        
                                                    
                                                
                                                

                                                    

                                                        
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