private async Task StartCaptureInternal(GraphicsCaptureItem item)
{
// Stop the previous capture if we had one.
StopCapture();
_item = item;
_lastSize = _item.Size;
_canvasDevice = new CanvasDevice();
_framePool = Direct3D11CaptureFramePool.Create(
_canvasDevice, // D3D device
DirectXPixelFormat.B8G8R8A8UIntNormalized, // Pixel format
2, // Number of frames
_item.Size); // Size of the buffers
_item.Closed += (s, a) =>
{
StopCapture();
};
_session = _framePool.CreateCaptureSession(_item);
_session.StartCapture();
await Task.Delay(500);
var frame = _framePool.TryGetNextFrame();
await ProcessFrame(frame);
StopCapture();
}
public void SetGraphicItem(GraphicsCaptureItem item)
{
this.ResetState();
this.item = item;
if (this.item != null)
{
this.renderTargetDescription = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.None,
Width = item.Size.Width,
Height = item.Size.Height,
Usage = ResourceUsage.Default,
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
ArraySize = 1,
BindFlags = BindFlags.RenderTarget | BindFlags.ShaderResource,
OptionFlags = ResourceOptionFlags.Shared,
MipLevels = 1,
SampleDescription = new SampleDescription(1, 0),
};
this.renderTarget = new Texture2D(d3dDevice, this.renderTargetDescription);
framePool = Direct3D11CaptureFramePool.Create(device, DirectXPixelFormat.B8G8R8A8UIntNormalized, 2, this.item.Size);
session = framePool.CreateCaptureSession(this.item);
lastSize = this.item.Size;
framePool.FrameArrived += this.OnFrameArrived;
session.StartCapture();
}
}
async public static Task <IList <MediaDevice> > GetVideoCaptureDevices()
{
var devices = (await Windows.Devices.Enumeration.DeviceInformation.FindAllAsync(
Windows.Media.Devices.MediaDevice.GetVideoCaptureSelector()));
IList <MediaDevice> list = new List <MediaDevice>();
foreach (var deviceInfo in devices)
{
list.Add(new MediaDevice()
{
Id = deviceInfo.Id,
Name = deviceInfo.Name,
//Location = device.Info.EnclosureLocation
});
}
if (GraphicsCaptureSession.IsSupported())
{
list.Add(new MediaDevice()
{
Id = Screen.DeviceId,
Name = Screen.DeviceName
});
}
return(list);
}
public MainPage()
{
InitializeComponent();
if (!GraphicsCaptureSession.IsSupported())
{
IsEnabled = false;
var dialog = new MessageDialog(
"Screen capture is not supported on this device for this release of Windows!",
"Screen capture unsupported");
var ignored = dialog.ShowAsync();
return;
}
// initialize screen recording
screenDevice = Direct3D11Helpers.CreateDevice();
// connect to the powerpoint app service
App.AppServiceConnected += MainPage_AppServiceConnected;
_timer.Interval = new TimeSpan(0, 0, 1);
_timer.Tick += _timer_Tick;
}
public void StartCaptureInternal(GraphicsCaptureItem item)
{
StopCapture();
_item = item;
_lastSize = _item.Size;
_swapChain = new CanvasSwapChain(_canvasDevice, _item.Size.Width, _item.Size.Height, 96);
swapChain.SwapChain = _swapChain;
_framePool = Direct3D11CaptureFramePool.Create(
_canvasDevice, // D3D device
DirectXPixelFormat.B8G8R8A8UIntNormalized, // Pixel format
60, // Number of frames
_item.Size); // Size of the buffers
_session = _framePool.CreateCaptureSession(_item);
_framePool.FrameArrived += (s, a) =>
{
using (var frame = _framePool.TryGetNextFrame())
{
ProcessFrame(frame);
}
};
_item.Closed += (s, a) =>
{
StopCapture();
};
_session.StartCapture();
}
private void CreateCaptureItemDependendStuff()
{
_framePool = Direct3D11CaptureFramePool.Create(_device, PixelFormat, 2, _item.Size);
_framePool.FrameArrived += OnFrameArrived;
_session = _framePool.CreateCaptureSession(_item);
_session.IsCursorCaptureEnabled = !PresentationToNDIAddIn.Properties.Settings.Default.HideMouse;
var description = new SwapChainDescription1
{
Width = _item.Size.Width,
Height = _item.Size.Height,
Format = SharpDxFormat,
Stereo = false,
SampleDescription = new SampleDescription {
Count = 1, Quality = 0
},
Usage = Usage.RenderTargetOutput,
BufferCount = 2,
Scaling = Scaling.Stretch,
SwapEffect = SwapEffect.FlipSequential,
AlphaMode = AlphaMode.Premultiplied,
Flags = SwapChainFlags.None
};
_swapChain = new SwapChain1(_factory, _d3dDevice, ref description);
_session.StartCapture();
}
/// <summary>
/// Invoked when application execution is being suspended. Application state is saved
/// without knowing whether the application will be terminated or resumed with the contents
/// of memory still intact.
/// </summary>
/// <param name="sender">The source of the suspend request.</param>
/// <param name="e">Details about the suspend request.</param>
private void OnSuspending(object sender, SuspendingEventArgs e)
{
var deferral = e.SuspendingOperation.GetDeferral();
// Don't bother if capture isn't supported
if (GraphicsCaptureSession.IsSupported())
{
// Save our state
var rootFrame = Window.Current.Content as Frame;
if (rootFrame != null)
{
rootFrame = ((RootView)rootFrame.Content).GetRootFrame();
if (rootFrame.Content is MainPage mainPage)
{
mainPage.CacheCurrentSettings();
}
else if (rootFrame.Content is RecordingPage recordingPage)
{
recordingPage.EndCurrentRecording();
}
}
}
deferral.Complete();
}
public MainPageViewModel()
{
_suaveKeysService = App.Current?.Container?.Resolve <ISuaveKeysService>();
CommandLog = "";
SuaveKeysSignInCommand = new AsyncCommand(async() =>
{
var signInResult = await _suaveKeysService.StartSignInAsync();
SuaveKeysSignInVisibility = signInResult?.ResultType == ResultType.Ok ? Visibility.Visible : Visibility.Collapsed;
});
ToggleStartCommand = new AsyncCommand(async() =>
{
if (!GraphicsCaptureSession.IsSupported())
{
Error = "This device does not support the capture requirements";
return;
}
if (!_isRecording)
{
await SetupEncoding();
}
else
{
Stop();
Cleanup();
}
});
}
public void StartCapture(IntPtr hWnd, Device device, Factory factory)
{
var capturePicker = new GraphicsCapturePicker();
// ReSharper disable once PossibleInvalidCastException
// ReSharper disable once SuspiciousTypeConversion.Global
var initializer = (IInitializeWithWindow)(object)capturePicker;
initializer.Initialize(hWnd);
_captureItem = capturePicker.PickSingleItemAsync().AsTask().Result;
if (_captureItem == null)
{
return;
}
_captureItem.Closed += CaptureItemOnClosed;
var hr = NativeMethods.CreateDirect3D11DeviceFromDXGIDevice(device.NativePointer, out var pUnknown);
if (hr != 0)
{
StopCapture();
return;
}
var winrtDevice = (IDirect3DDevice)Marshal.GetObjectForIUnknown(pUnknown);
Marshal.Release(pUnknown);
_captureFramePool = Direct3D11CaptureFramePool.Create(winrtDevice, DirectXPixelFormat.B8G8R8A8UIntNormalized, 2, _captureItem.Size);
_captureSession = _captureFramePool.CreateCaptureSession(_captureItem);
_captureSession.StartCapture();
IsCapturing = true;
}
public int StartRecording()
{
if (framePool == null)
{
return(1);
}
if (gcitem == null)
{
return(2);
}
counter = 0;
threadcounter = 0;
totalMemoryUsed = 0;
framePool.FrameArrived += OnFrameArrived;
isRecording = true;
//parent.msg("Started");
session = framePool.CreateCaptureSession(gcitem);
session.StartCapture();
return(0);
}
public void StopCapture()
{
_session?.Dispose();
_framePool?.Dispose();
_item = null;
_session = null;
_framePool = null;
}
void SetupCapture()
{
IsCaptureSupported = GraphicsCaptureSession.IsSupported();
if (IsCaptureNotSupported)
{
return;
}
}
public void Stop()
{
_captureItem = null;
_framePool.Dispose();
_framePool = null;
_session.Dispose();
_session = null;
}
public async Task StartRecording()
{
if (framePool == null)
{
if (parent != null)
{
parent.StartWritingOutput("FramePool is null", 1);
}
return;
}
if (gcitem == null)
{
if (parent != null)
{
parent.StartWritingOutput("Graphics Capture Item is null", 1);
}
return;
}
counter = 0;
threadcounter = 0;
totalMemoryUsed = 0;
framePool.FrameArrived += OnFrameArrived;
isRecording = true;
if (parent != null)
{
parent.StartWritingOutput("Recording Starts...", 2);
}
//if (bRecordWebcam)
//{
// if (tempWebcamFile != null)
// {
// MediaEncodingProfile webcamProfile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Qvga);
// await mediaCapture.StartRecordToStorageFileAsync(webcamProfile, tempWebcamFile);
// }
//}
//else if (bRecordAudio)
//{
// if (memoryAudioStream != null)
// {
// await mediaCapture.StartRecordToStreamAsync(
// MediaEncodingProfile.CreateMp3(AudioEncodingQuality.Auto), memoryAudioStream);
// }
//}
session = framePool.CreateCaptureSession(gcitem);
session.StartCapture();
return;
}
public void StopCapture() // ...or release resources
{
_captureSession?.Dispose();
_captureFramePool?.Dispose();
_captureSession = null;
_captureFramePool = null;
_captureItem = null;
IsCapturing = false;
}
public ModernCaptureMonitorSession(IDirect3DDevice device, ModernCaptureMonitorDescription description) : base(description)
{
this.CaptureItem = WinRTCaptureHelper.CreateItemForMonitor(description.MonitorInfo.Hmon);
this.FramePool = Direct3D11CaptureFramePool.Create(device,
description.HdrMetadata.EnableHdrProcessing ? DirectXPixelFormat.R16G16B16A16Float : DirectXPixelFormat.B8G8R8A8UIntNormalized,
2, CaptureItem.Size);
this.Session = FramePool.CreateCaptureSession(CaptureItem);
this.Session.IsCursorCaptureEnabled = description.CaptureCursor;
}
public ScreenGrabberWindowsCapture(MonitorInfo screen) : base(screen)
{
Application.Current.Dispatcher.Invoke(() =>
{
var device = WindowsCaptureHelper.CreateDirect3DDeviceFromSharpDXDevice(new SharpDX.Direct3D11.Device(DriverType.Hardware, DeviceCreationFlags.BgraSupport));
_d3dDevice = WindowsCaptureHelper.CreateSharpDXDevice(device);
var item = WindowsCaptureHelper.CreateItemForMonitor(Screen.HMon);
var factory = new Factory2();
var description = new SwapChainDescription1
{
Width = item.Size.Width,
Height = item.Size.Height,
Format = Format.B8G8R8A8_UNorm,
Stereo = false,
SampleDescription = new SampleDescription
{
Count = 1,
Quality = 0
},
Usage = Usage.RenderTargetOutput,
BufferCount = 2,
Scaling = Scaling.Stretch,
SwapEffect = SwapEffect.FlipSequential,
AlphaMode = AlphaMode.Premultiplied,
Flags = SwapChainFlags.None
};
_swapChain = new SwapChain1(factory, _d3dDevice, ref description);
_framePool = Direct3D11CaptureFramePool.Create(device, DirectXPixelFormat.B8G8R8A8UIntNormalized, 2, item.Size);
_session = _framePool.CreateCaptureSession(item);
_session.IsCursorCaptureEnabled = false;
_swapChain.ResizeBuffers(2, item.Size.Width, item.Size.Height, Format.B8G8R8A8_UNorm, SwapChainFlags.None);
_screenTexture = new Texture2D(_d3dDevice, new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = Format.B8G8R8A8_UNorm,
Width = item.Size.Width,
Height = item.Size.Height,
OptionFlags = ResourceOptionFlags.None,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = ResourceUsage.Staging
});
_framePool.FrameArrived += OnFrameArrived;
_session.StartCapture();
});
}
public async Task Record(GraphicsCaptureItem _field)
{
canvasDevice = new CanvasDevice();
field = _field;
framePool = Direct3D11CaptureFramePool.Create(
canvasDevice, // D3D device
DirectXPixelFormat.A8P8, // Pixel format
2, // Number of frames
field.Size); // Size of the buffers
session = framePool.CreateCaptureSession(field);
}
private void Button_Click(object sender, RoutedEventArgs e)
{
bool isSupport = GraphicsCaptureSession.IsSupported();
if (isSupport)
{
caputurebutton.Visibility = Visibility.Visible;
}
//MessageDialog messageDialog = new MessageDialog(isSupport.ToString());
//await messageDialog.ShowAsync();
}
public void OnInitialization()
{
//LND
lnd = new LEDandDisplay(50, 30, 16, "COM6", 1650, 1050, false, 50);
Update();
//WriteSittings();
ReadSittings();
ShowSittings();
//rec
_canvasDevice = new CanvasDevice();
_compositionGraphicsDevice = CanvasComposition.CreateCompositionGraphicsDevice(
Window.Current.Compositor,
_canvasDevice);
//framerate
dt = DateTime.Now;
//Arduino
ArduinoInit();
//background
bgndSession = new ExtendedExecutionSession();
bgndSession.Reason = ExtendedExecutionReason.Unspecified;
//drawing
_compositor = Window.Current.Compositor;
_surface = _compositionGraphicsDevice.CreateDrawingSurface(
new Size(100, 100),
DirectXPixelFormat.B8G8R8A8UIntNormalized,
DirectXAlphaMode.Premultiplied);
var visual = _compositor.CreateSpriteVisual();
visual.RelativeSizeAdjustment = Vector2.One;
var brush = _compositor.CreateSurfaceBrush(_surface);
brush.HorizontalAlignmentRatio = 0.5f;
brush.VerticalAlignmentRatio = 0.5f;
brush.Stretch = CompositionStretch.Uniform;
visual.Brush = brush;
ElementCompositionPreview.SetElementChildVisual(this, visual);
if (!GraphicsCaptureSession.IsSupported())
{
CaptureButton.Visibility = Visibility.Collapsed;
}
//autostart
if (lnd.autostart == true)
{
_item = lnd.item;
//StartCaptureInternal(lnd.item);
StartCaptureAsync();
}
}
public void Dispose()
{
_session?.Dispose();
_framePool?.Dispose();
_swapChain?.Dispose();
_swapChain = null;
_framePool = null;
_session = null;
_item = null;
}
public async Task <VoipVideoCapture> ToggleCapturingAsync(VoipCaptureType type)
{
void Disable()
{
if (_capturer != null)
{
_capturer.SetOutput(null);
_manager.SetVideoCapture(null);
_capturer.Dispose();
_capturer = null;
}
}
if (type == VoipCaptureType.None)
{
Disable();
}
else if (type == VoipCaptureType.Video && _capturer is not VoipVideoCapture)
{
Disable();
if (_manager == null)
{
return(null);
}
_capturer = new VoipVideoCapture(await _videoWatcher.GetAndUpdateAsync());
_manager?.SetVideoCapture(_capturer);
}
else if (type == VoipCaptureType.Screencast && _capturer is not VoipScreenCapture)
{
Disable();
if (_manager == null || !GraphicsCaptureSession.IsSupported())
{
return(null);
}
var picker = new GraphicsCapturePicker();
var item = await picker.PickSingleItemAsync();
if (item == null || _manager == null)
{
return(null);
}
_capturer = new VoipScreenCapture(item);
_manager?.SetVideoCapture(_capturer);
}
return(_capturer);
}
public CaptureEngine(IDirect3DDevice device, GraphicsCaptureItem item)
{
_device = device;
_d3dDevice = Direct3D11Helper.CreateSharpDXDevice(_device);
_framePool = Direct3D11CaptureFramePool.Create(
_device, DirectXPixelFormat.B8G8R8A8UIntNormalized, 2, item.Size);
_session = _framePool.CreateCaptureSession(item);
_lastSize = item.Size;
_framePool.FrameArrived += OnFrameArrived;
}
public void Run()
{
_compositor = new Compositor();
_target = _compositor.CreateTargetForCurrentView();
_root = _compositor.CreateSpriteVisual();
_content = _compositor.CreateSpriteVisual();
_brush = _compositor.CreateSurfaceBrush();
_root.Brush = _compositor.CreateColorBrush(Colors.White);
_root.RelativeSizeAdjustment = Vector2.One;
_target.Root = _root;
if (GraphicsCaptureSession.IsSupported())
{
_content.AnchorPoint = new Vector2(0.5f, 0.5f);
_content.RelativeOffsetAdjustment = new Vector3(0.5f, 0.5f, 0);
_content.RelativeSizeAdjustment = Vector2.One;
_content.Size = new Vector2(-80, -80);
_content.Brush = _brush;
_brush.HorizontalAlignmentRatio = 0.5f;
_brush.VerticalAlignmentRatio = 0.5f;
_brush.Stretch = CompositionStretch.Uniform;
var shadow = _compositor.CreateDropShadow();
shadow.Mask = _brush;
_content.Shadow = shadow;
_root.Children.InsertAtTop(_content);
_device = new CanvasDevice();
// We can't just call the picker here, because no one is pumping messages yet.
// By asking the dispatcher for our UI thread to run this, we ensure that the
// message pump is pumping messages by the time this runs.
var ignored = _window.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
var ignoredTask = StartCaptureAsync();
});
_doubleTapHelper = new DoubleTapHelper(_window);
_doubleTapHelper.DoubleTapped += OnDoubleTapped;
}
else
{
var ignored = _window.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
var dialog = new MessageDialog("Screen capture is not supported on this device for this release of Windows!");
await dialog.ShowAsync();
});
}
_window.Activate();
_window.Dispatcher.ProcessEvents(CoreProcessEventsOption.ProcessUntilQuit);
}
public MainPage()
{
this.InitializeComponent();
if (!GraphicsCaptureSession.IsSupported())
{
// Hide the capture UI if screen capture is not supported.
CaptureBtn.Visibility = Visibility.Collapsed;
}
Setup();
}
private void InitializeCapture()
{
this.initializationThread = Thread.CurrentThread.ManagedThreadId;
this.CurrentItem.Closed += this.OnClosed;
this.framePool = Direct3D11CaptureFramePool.CreateFreeThreaded(
this.device,
DirectXPixelFormat.B8G8R8A8UIntNormalized,
1,
this.CurrentItem.Size);
this.framePool.FrameArrived += this.OnFrameArrived;
this.session = this.framePool.CreateCaptureSession(this.CurrentItem);
this.session.StartCapture();
}
public void cleanUpCam()
{
session?.Dispose();
framePool?.Dispose();
currentFrame?.Dispose();
canvasDevice?.Dispose();
session = null;
framePool = null;
currentFrame = null;
canvasDevice = null;
//gcitem = null; //cannot set to null until app has finished encoding
}
private async void StartCaptureInternal(GraphicsCaptureItem item)
{
// Stop the previous capture if we had one.
StopCapture();
var scale = DisplayInformation.GetForCurrentView().RawPixelsPerViewPixel;
var height = item.Size.Height - 32;
bool result = Windows.UI.ViewManagement.ApplicationView.GetForCurrentView().TryResizeView(new Size {
Width = item.Size.Width / scale, Height = height / scale
});
if (!result)
{
bool result_full = Windows.UI.ViewManagement.ApplicationView.GetForCurrentView().TryEnterFullScreenMode();
}
_item = item;
_lastSize = _item.Size;
_framePool = Direct3D11CaptureFramePool.Create(
_canvasDevice, // D3D device
DirectXPixelFormat.B8G8R8A8UIntNormalized, // Pixel format
2, // Number of frames
_item.Size); // Size of the buffers
_framePool.FrameArrived += (s, a) =>
{
// The FrameArrived event is raised for every frame on the thread
// that created the Direct3D11CaptureFramePool. This means we
// don't have to do a null-check here, as we know we're the only
// one dequeueing frames in our application.
// NOTE: Disposing the frame retires it and returns
// the buffer to the pool.
using (var frame = _framePool.TryGetNextFrame())
{
ProcessFrame(frame);
}
};
_item.Closed += (s, a) =>
{
StopCapture();
};
_session = _framePool.CreateCaptureSession(_item);
_session.StartCapture();
await SaveRecordingAsync("a.mp4", 5000);
}
public void StopCapture()
{
foreach (var clip in ClipImages.Values)
{
clip.Stop();
}
renderTarget?.Dispose();
_session?.Dispose();
_framePool?.Dispose();
_item = null;
_session = null;
_framePool = null;
renderTarget = null;
}
public void cleanUpCam()
{
session?.Dispose();
framePool?.Dispose();
currentFrame?.Dispose();
canvasDevice?.Dispose();
session = null;
framePool = null;
currentFrame = null;
canvasDevice = null;
gcitem = null;
}