/// <summary>
/// Initiate the camera
/// </summary>
public Camera()
{
// You can select other size and other format, this is a very basic one supported by all types of webcams including old ones
VideoConnectionSettings settings = new VideoConnectionSettings(0, (640, 480), Iot.Device.Media.PixelFormat.JPEG);
_device = VideoDevice.Create(settings);
// if the device has sufficent ram, enabling pooling significantly improves frames per second by preventing GC.
_device.ImageBufferPoolingEnabled = true;
}
private Camera()
{
// You can select other size and other format, this is a very basic one supported by all types of webcams including old ones
VideoConnectionSettings settings = new VideoConnectionSettings(0, (640, 480), Iot.Device.Media.PixelFormat.JPEG);
Device = VideoDevice.Create(settings);
IsRunning = true;
new Thread(() => { TakePictures(); }).Start();
}
public static void Main(string[] args)
{
VideoConnectionSettings settings = new VideoConnectionSettings(0, (2560, 1920), PixelFormat.JPEG);
using VideoDevice device = VideoDevice.Create(settings);
// Get the supported formats of the device
foreach (PixelFormat item in device.GetSupportedPixelFormats())
{
Console.Write($"{item} ");
}
Console.WriteLine();
// Get the resolutions of the format
foreach (var resolution in device.GetPixelFormatResolutions(PixelFormat.YUYV))
{
Console.Write($"{resolution.Width}x{resolution.Height} ");
}
Console.WriteLine();
// Query v4l2 controls default and current value
VideoDeviceValue value = device.GetVideoDeviceValue(VideoDeviceValueType.Rotate);
Console.WriteLine($"{value.Name} Min: {value.Minimum} Max: {value.Maximum} Step: {value.Step} Default: {value.DefaultValue} Current: {value.CurrentValue}");
string path = Directory.GetCurrentDirectory();
// Take photos
device.Capture($"{path}/jpg_direct_output.jpg");
// Change capture setting
device.Settings.PixelFormat = PixelFormat.YUV420;
// Convert pixel format
Color[] colors = VideoDevice.Yv12ToRgb(device.Capture(), settings.CaptureSize);
Bitmap bitmap = VideoDevice.RgbToBitmap(settings.CaptureSize, colors);
bitmap.Save($"{path}/yuyv_to_jpg.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
}
