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();
}
/// <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;
}
static void Main(string[] args)
{
VideoConnectionSettings settings = new VideoConnectionSettings(0)
{
CaptureSize = (2560, 1920),
PixelFormat = PixelFormat.JPEG,
ExposureType = ExposureType.Auto
};
using VideoDevice device = VideoDevice.Create(settings);
// Get the supported formats of the device
foreach (PixelFormat item in device.GetSupportedPixelFormats())
{
Console.Write($"{item} ");
}
Console.WriteLine();
// Get the resolutions of the format
foreach ((uint Width, uint Height) in device.GetPixelFormatResolutions(PixelFormat.YUYV))
{
Console.Write($"{Width}x{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($"{path}/yuyv_to_jpg.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
}
}
static void Main(string[] args)
{
CompareType <v4l2_capability>();
CompareType <v4l2_fmtdesc>();
CompareType <v4l2_requestbuffers>();
CompareType <int>();
CompareType <v4l2_control>();
CompareType <v4l2_queryctrl>();
CompareType <v4l2_cropcap>();
CompareType <v4l2_crop>();
CompareType <v4l2_format>();
CompareType <v4l2_format_aligned>();
CompareType <v4l2_frmsizeenum>();
CompareType <v4l2_buffer>();
VideoConnectionSettings settings = new VideoConnectionSettings(0)
{
CaptureSize = (1920, 1080),
PixelFormat = PixelFormat.MJPEG,
ExposureType = ExposureType.Auto
};
using VideoDevice device = VideoDevice.Create(settings);
string path = Directory.GetCurrentDirectory();
// Take photos
device.Capture($"{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);
}
}