public CoreInitSizeEventArgs(GDI.SIZE newSize, double nativeAspectRatio, bool initial, bool suggestInvalidate)
{
_newSize = newSize;
_nativeAspectRatio = nativeAspectRatio;
_initial = initial;
_suggestInvalidate = suggestInvalidate;
}
private void InitializeMediaEngine()
{
MediaEngine = MediaEngineServiceProvider.GetMediaEngine(this);
MediaEngine.MediaWindowDisposed += delegate(object sender, EventArgs args)
{
if (_mediaWindow != null)
{
_mediaWindow.MessageReceived -= new EventHandler <MessageReceivedEventArgs>(_mediaWindow_MessageReceived);
_mediaWindow = null;
}
SetMediaWindowState(false);
};
MediaEngine.InitSize += (sender, args) =>
{
_rcSrc = args.NewVideSize;
_nativeAspectRatio = args.NativeAspectRatio;
if (args.Initial)
{
var matrix = this.GetTargetMatrix();
var newVideoSize = (Size)matrix.Transform((Vector) new Size(args.NewVideSize.cx, args.NewVideSize.cy));
OnInitSize(newVideoSize);
}
ResizeNormal(args.Initial);
if (args.InvalidateSuggested)
{
InvalidateMediaWindow();
}
};
}
private void InitializeMediaEngine()
{
_engine = MediaEngineServiceProvider.GetMediaEngine(this);
_engine.MediaWindowDisposed += delegate(object sender, EventArgs args)
{
if (_mediaWindow != null)
{
_mediaWindow.MessageReceived -= new EventHandler <MessageReceivedEventArgs>(_mediaWindow_MessageReceived);
}
CreateMediaWindow();
};
_engine.InitSize += (sender, args) =>
{
_rcSrc = args.NewVideSize;
_nativeAspectRatio = args.NativeAspectRatio;
if (args.Initial)
{
OnInitSize(new InitSizeEventArgs(new Size(args.NewVideSize.cx, args.NewVideSize.cy)));
}
ResizeNormal(args.Initial);
if (args.InvalidateSuggested)
{
InvalidateMediaWindow();
}
};
}
public override void GetNativeVideoSize(out int width, out int height, out int arWidth, out int arHeight)
{
GDI.SIZE size = new GDI.SIZE(), ratio = new GDI.SIZE();
_pMFVideoDisplayControl.GetNativeVideoSize(ref size, ref ratio);
width = size.cx;
height = size.cy;
arWidth = ratio.cx;
arHeight = ratio.cy;
}
protected virtual void OnInitSize(bool initial, bool suggestInvalidate)
{
if (_filterGraph != null)
{
var rect = _filterGraph.SourceRect;
var size = new GDI.SIZE {
cx = rect.right - rect.left, cy = rect.bottom - rect.top
};
var args = new CoreInitSizeEventArgs(size, _filterGraph.AspectRatio, initial, suggestInvalidate);
args.Raise(this, ref InitSize);
}
}
