private void OnTimedEvent(object source, ElapsedEventArgs e)
{
Bitmap bitmap = new Bitmap(WIDTH, HEIGHT);
Graphics gfx = Graphics.FromImage(bitmap);
SolidBrush brush = new SolidBrush(Color.FromArgb(255, 0, 255, 0));
gfx.FillRectangle(brush, 0, 0, WIDTH, HEIGHT);
VideoFrame frame = VideoFrame.CreateYuv420pFrameFromBitmap(bitmap);
frame.Metadata = Encoding.ASCII.GetBytes(DateTime.Now.ToString("MM/dd/yyy hh:mm:ss.fff"));
frameConsumer.Consume(frame);
frame.Dispose();
}
public void Start()
{
timer = new System.Threading.Timer((Object stateInfo) =>
{
using (Bitmap bitmap = new Bitmap(WIDTH, HEIGHT, System.Drawing.Imaging.PixelFormat.Format32bppArgb))
{
using (Graphics graphics = Graphics.FromImage(bitmap as Image))
{
graphics.CopyFromScreen(0, 0, 0, 0, new Size(WIDTH, HEIGHT), CopyPixelOperation.SourceCopy);
}
using (var frame = OpenTok.VideoFrame.CreateYuv420pFrameFromBitmap(bitmap))
{
frameConsumer.Consume(frame);
}
}
}, null, 0, 1000 / FPS);
}
public void Start()
{
const int numAdapter = 0;
// Change the output number to select a different desktop
const int numOutput = 0;
var factory = new Factory1();
var adapter = factory.GetAdapter1(numAdapter);
var device = new SharpDX.Direct3D11.Device(adapter);
var output = adapter.GetOutput(numOutput);
var output1 = output.QueryInterface <Output1>();
width = output.Description.DesktopBounds.Right;
height = output.Description.DesktopBounds.Bottom;
var textureDesc = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = Format.B8G8R8A8_UNorm,
Width = width,
Height = height,
OptionFlags = ResourceOptionFlags.None,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = ResourceUsage.Staging
};
var screenTexture = new Texture2D(device, textureDesc);
var duplicatedOutput = output1.DuplicateOutput(device);
timer = new Timer((Object stateInfo) =>
{
try
{
SharpDX.DXGI.Resource screenResource;
OutputDuplicateFrameInformation duplicateFrameInformation;
duplicatedOutput.AcquireNextFrame(1000 / FPS, out duplicateFrameInformation, out screenResource);
using (var screenTexture2D = screenResource.QueryInterface <Texture2D>())
device.ImmediateContext.CopyResource(screenTexture2D, screenTexture);
screenResource.Dispose();
duplicatedOutput.ReleaseFrame();
var mapSource = device.ImmediateContext.MapSubresource(screenTexture, 0, MapMode.Read,
SharpDX.Direct3D11.MapFlags.None);
IntPtr[] planes = { mapSource.DataPointer };
int[] strides = { mapSource.RowPitch };
using (var frame = VideoFrame.CreateYuv420pFrameFromBuffer(PixelFormat.FormatArgb32, width, height,
planes, strides))
{
frameConsumer.Consume(frame);
}
device.ImmediateContext.UnmapSubresource(screenTexture, 0);
}
catch (SharpDXException) { }
}, null, 0, 1000 / FPS);
output1.Dispose();
output.Dispose();
adapter.Dispose();
factory.Dispose();
}
