public void CompositeFrame(CompositeVideoFrameContext context)
{
IDirect3DSurface outputSurface = context.OutputFrame.Direct3DSurface;
using (CanvasRenderTarget renderTarget = CanvasRenderTarget.CreateFromDirect3D11Surface(_canvasDevice, outputSurface))
using (CanvasDrawingSession drawSession = renderTarget.CreateDrawingSession())
{
foreach (var overlaySurface in context.SurfacesToOverlay)
{
var overlay = context.GetOverlayForSurface(overlaySurface);
var width = (float)overlay.Position.Width;
var height = (float)overlay.Position.Height;
using (var overlayBitmap = CanvasBitmap.CreateFromDirect3D11Surface(_canvasDevice, overlaySurface))
using (var videoBrush = new CanvasImageBrush(_canvasDevice, overlayBitmap))
{
var scale = width / overlay.Clip.GetVideoEncodingProperties().Width;
videoBrush.Transform = Matrix3x2.CreateScale(scale) * Matrix3x2.CreateTranslation((float)overlay.Position.X, (float)overlay.Position.Y);
drawSession.FillEllipse(new Vector2((float)overlay.Position.X + width / 2, (float)overlay.Position.Y + height / 2), width / 2, height / 2, videoBrush);
}
}
drawSession.DrawText("Party\nTime!", new Vector2(_backgroundProperties.Width / 1.5f, 100), Windows.UI.Colors.CornflowerBlue,
new CanvasTextFormat()
{
FontSize = (float)_backgroundProperties.Width / 13,
FontWeight = new FontWeight() { Weight = 999 },
HorizontalAlignment = CanvasHorizontalAlignment.Center,
VerticalAlignment = CanvasVerticalAlignment.Center
});
}
}
public void CompositeFrame(CompositeVideoFrameContext context)
{
IDirect3DSurface outputSurface = context.OutputFrame.Direct3DSurface;
using (CanvasRenderTarget renderTarget = CanvasRenderTarget.CreateFromDirect3D11Surface(_canvasDevice, outputSurface))
using (CanvasDrawingSession drawSession = renderTarget.CreateDrawingSession())
{
foreach (var overlaySurface in context.SurfacesToOverlay)
{
var overlay = context.GetOverlayForSurface(overlaySurface);
var width = (float)overlay.Position.Width;
var height = (float)overlay.Position.Height;
using (var overlayBitmap = CanvasBitmap.CreateFromDirect3D11Surface(_canvasDevice, overlaySurface))
using (var videoBrush = new CanvasImageBrush(_canvasDevice, overlayBitmap))
{
var scale = width / overlay.Clip.GetVideoEncodingProperties().Width;
videoBrush.Transform = Matrix3x2.CreateScale(scale) * Matrix3x2.CreateTranslation((float)overlay.Position.X, (float)overlay.Position.Y);
drawSession.FillEllipse(new Vector2((float)overlay.Position.X + width / 2, (float)overlay.Position.Y + height / 2), width / 2, height / 2, videoBrush);
}
}
drawSession.DrawText("Party\nTime!", new Vector2(_backgroundProperties.Width / 1.5f, 100), Windows.UI.Colors.CornflowerBlue,
new CanvasTextFormat()
{
FontSize = (float)_backgroundProperties.Width / 13,
FontWeight = new FontWeight()
{
Weight = 999
},
HorizontalAlignment = CanvasHorizontalAlignment.Center,
VerticalAlignment = CanvasVerticalAlignment.Center
});
}
}
/// <summary>
/// Composite the frame
/// </summary>
/// <param name="context">the composite frame context</param>
public void CompositeFrame(CompositeVideoFrameContext context)
{
foreach (var surface in context.SurfacesToOverlay)
{
using (var inputBitmap = CanvasBitmap.CreateFromDirect3D11Surface(MediaExtension.Device, surface))
using (var renderTarget = CanvasRenderTarget.CreateFromDirect3D11Surface(MediaExtension.Device, context.OutputFrame.Direct3DSurface))
using (var ds = renderTarget.CreateDrawingSession())
using (var chromaKeyEffect = MediaExtension.CreateChromaKeyEffect(inputBitmap))
{
var overlay = context.GetOverlayForSurface(surface);
var destinationRectangle = overlay.Position;
var sourceRectangle = inputBitmap.Bounds;
var opacity = System.Convert.ToSingle(overlay.Opacity);
ds.DrawImage(chromaKeyEffect, destinationRectangle, sourceRectangle, opacity);
}
}
}
