public void TestDevices()
{
UvcDevice device;
var err = NativeMethods.uvc_find_device(handle, out device, 0, 0, null);
UvcException.ThrowExceptionForUvcError(err);
UvcDeviceHandle devh;
err = NativeMethods.uvc_open(device, out devh);
UvcException.ThrowExceptionForUvcError(err);
Console.WriteLine(err);
StreamControl ctrl;
err = NativeMethods.uvc_get_stream_ctrl_format_size(devh, out ctrl, FrameFormat.Any, 640, 480, 120);
Console.WriteLine(ctrl.KeyFrameRate);
err = NativeMethods.uvc_start_streaming(devh, ref ctrl, OnFrame, IntPtr.Zero, 0);
Console.ReadLine();
NativeMethods.uvc_stop_streaming(devh);
NativeMethods.uvc_print_diag(devh, IntPtr.Zero);
devh.Close();
}
public void StartIsoStreaming(ref StreamControl control, FrameCallback callback)
{
var error = NativeMethods.uvc_start_iso_streaming(handle, ref control, callback, IntPtr.Zero);
UvcException.ThrowExceptionForUvcError(error);
cb = callback;
}
public DeviceHandle Open()
{
UvcDeviceHandle devh;
var error = NativeMethods.uvc_open(handle, out devh);
UvcException.ThrowExceptionForUvcError(error);
return(new DeviceHandle(devh));
}
public Device FindDevice(int vendorId = 0, int productId = 0, string serialNumber = null)
{
UvcDevice device;
var error = NativeMethods.uvc_find_device(handle, out device, vendorId, productId, serialNumber);
UvcException.ThrowExceptionForUvcError(error);
return(new Device(device));
}
internal Device(UvcDevice device)
{
handle = device;
IntPtr descriptor;
var error = NativeMethods.uvc_get_device_descriptor(handle, out descriptor);
UvcException.ThrowExceptionForUvcError(error);
try
{
vendorId = (ushort)Marshal.ReadInt16(descriptor);
productId = (ushort)Marshal.ReadInt16(descriptor, 2);
complianceLevel = (ushort)Marshal.ReadInt16(descriptor, 4);
}
finally { NativeMethods.uvc_free_device_descriptor(descriptor); }
}
internal Device(UvcDevice device)
{
handle = device;
IntPtr descriptor;
var error = NativeMethods.uvc_get_device_descriptor(handle, out descriptor);
UvcException.ThrowExceptionForUvcError(error);
try
{
vendorId = (ushort)Marshal.ReadInt16(descriptor);
productId = (ushort)Marshal.ReadInt16(descriptor, 2);
complianceLevel = (ushort)Marshal.ReadInt16(descriptor, 4);
serialNumber = Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(descriptor, 6));
manufacturer = Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(descriptor, 6 + IntPtr.Size));
product = Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(descriptor, 6 + IntPtr.Size * 2));
}
finally { NativeMethods.uvc_free_device_descriptor(descriptor); }
}
public IEnumerable <Device> GetDevices()
{
IntPtr devices;
var error = NativeMethods.uvc_get_device_list(handle, out devices);
UvcException.ThrowExceptionForUvcError(error);
try
{
int i = 0;
IntPtr devh;
while ((devh = Marshal.ReadIntPtr(devices, IntPtr.Size * i++)) != IntPtr.Zero)
{
var device = new UvcDevice(devh);
yield return(new Device(device));
}
}
finally { NativeMethods.uvc_free_device_list(devices, 1); }
}
public IEnumerable <Device> FindDevices(int vendorId = 0, int productId = 0, string serialNumber = null)
{
IntPtr devices;
var error = NativeMethods.uvc_find_devices(handle, out devices, vendorId, productId, serialNumber);
UvcException.ThrowExceptionForUvcError(error);
try
{
int i = 0;
IntPtr devh;
while ((devh = Marshal.ReadIntPtr(devices, IntPtr.Size * i++)) != IntPtr.Zero)
{
var device = new UvcDevice(devh);
yield return(new Device(device));
}
}
finally { NativeMethods.uvc_free_device_list(devices, 1); }
}
public void ProbeStreamControl(out StreamControl control)
{
var error = NativeMethods.uvc_probe_stream_ctrl(handle, out control);
UvcException.ThrowExceptionForUvcError(error);
}
public void GetStreamControlFormatSize(FrameFormat format, int width, int height, int fps, out StreamControl control)
{
var error = NativeMethods.uvc_get_stream_ctrl_format_size(handle, out control, format, width, height, fps);
UvcException.ThrowExceptionForUvcError(error);
}
public Context()
{
var error = NativeMethods.uvc_init(out handle, IntPtr.Zero);
UvcException.ThrowExceptionForUvcError(error);
}
