Screen source

Screen source supports recording video from the screen. You can select the display (if more than one), the part of the screen to be recorded, and optional mouse cursor recording.

Settings

Windows

• ScreenCaptureDX9SourceSettings - Use DirectX 9 for screen recording.
• ScreenCaptureD3D11SourceSettings - Use Direct3D 11 for screen recording.
• ScreenCaptureGDISourceSettings - Use GDI for screen recording.

macOS

ScreenCaptureMacOSSourceSettings - Use AVFoundation for screen recording.

Linux

ScreenCaptureXDisplaySourceSettings - Use X11 for screen recording.

iOS

IOSScreenSourceSettings - Use AVFoundation for current window recording.

Block info

Name: ScreenSourceBlock.

Pin direction	Media type	Pins count
Output video	uncompressed video	1

The sample pipeline

Sample code

// create pipeline
var pipeline = new MediaBlocksPipeline();

// create source settings
var screenSourceSettings = new ScreenCaptureDX9SourceSettings() { FrameRate = 15 }

// create source block
var screenSourceBlock = new ScreenSourceBlock(screenSourceSettings);

// create video encoder block and connect it to the source block
var h264EncoderBlock = new H264EncoderBlock(new MFH264EncoderSettings());
pipeline.Connect(screenSourceBlock.Output, h264EncoderBlock.Input);

// create MP4 sink block and connect it to the encoder block
var mp4SinkBlock = new MP4SinkBlock(new MP4SinkSettings(@"output.mp4"));
pipeline.Connect(h264EncoderBlock.Output, mp4SinkBlock.CreateNewInput(MediaBlockPadMediaType.Video));

// run pipeline
await pipeline.StartAsync();

[Windows] Window capture

You can capture a specific window by using the ScreenCaptureD3D11SourceSettings class.

// create Direct3D11 source
var source = new ScreenCaptureD3D11SourceSettings();

// set frame rate
source.FrameRate = new VideoFrameRate(30);

// get handle of the window
var wih = new System.Windows.Interop.WindowInteropHelper(this);
source.WindowHandle = wih.Handle;

// create source block
var screenSourceBlock = new ScreenSourceBlock(new ScreenCaptureDX9SourceSettings() { FrameRate = 15 });

// other code is the same as above

Sample applications

• Screen Capture Demo (WPF)
• Screen Capture Demo (MAUI)
• Screen Capture Demo (iOS)

Platforms

Windows, macOS, Linux, iOS.