ImageManager/Cvb.Net/Ringbuffer

This example program is located in your CVB installation under %CVB%Tutorial/ImageManager/Cvb.Net/Ringbuffer.

Program.cs:

// Example that demonstrates the ring buffer handling with locking and unlocking buffers.

 
using Stemmer.Cvb;
using Stemmer.Cvb.Driver;
using Stemmer.Cvb.Utilities;
using System;
using System.Collections.Generic;
 
namespace Ringbuffer
{
    class Ringbuffer
    {
        static void Main(string[] args)
        {
            using (var devices = DeviceFactory.Discover(DiscoverFlags.IgnoreVins))
            {
                using (var device = DeviceFactory.Open(devices[0], AcquisitionStack.Vin))
                {
                    var stream = device.Stream;
                    stream.RingBuffer.ChangeCount(5, DeviceUpdateMode.UpdateDeviceImage);
                    stream.RingBuffer.LockMode = RingBufferLockMode.On;
                    Console.WriteLine($"Buffers allocated: {stream.RingBuffer.Count} | Lock mode: {stream.RingBuffer.LockMode}");
                    stream.Start();
                    List<StreamImage> images = new List<StreamImage>();
                    for (int i = 0; i < 10; i++)
                    {
                        WaitStatus status;
                        var image = stream.WaitFor(UsTimeSpan.FromSeconds(5), out status);
                        if (status == WaitStatus.Ok)
                        {
                            images.Add(image);
                            Console.WriteLine($"Images list size: {images.Count}");
                        }
                        else if (status == WaitStatus.Timeout && images.Count > 0)
                        {
                            (images[0] as RingBufferImage).Unlock();
                            images.RemoveAt(0);
                            Console.WriteLine($"Image unlocked");
                        }
                    }
                    images.Clear();
                    stream.Abort();
                }
            }
        }
    }
}