NDI streaming output

NDI (Network Device Interface): Developed by NewTek, NDI is a royalty-free technology that allows video-compatible products to communicate, deliver, and receive high-quality, low-latency video and audio over IP networks. This makes it ideal for live video production environments.

Use the NDISinkSettings class to set the parameters.

Block info

Name: NDISinkBlock.

Pin direction	Media type	Pins count
Input audio	F32LE	one
Input video	UYVY, I420, NV12, NV21, YV12	one
	BGRA, BGRx, RGBA, RGBx

The sample pipeline

Sample code

The following code shows how to create a pipeline that streams video and audio to an NDI sink.

// Pipeline
var pipeline = new MediaBlocksPipeline();

// video and audio sources
var virtualVideoSource = new VirtualVideoSourceSettings
{
    Width = 1280,
    Height = 720,
    FrameRate = VideoFrameRate.FPS_25,
};

var videoSource = new VirtualVideoSourceBlock(virtualVideoSource);

var virtualAudioSource = new VirtualAudioSourceSettings
{
     Channels = 2,
     SampleRate = 44100,
};

var audioSource = new VirtualAudioSourceBlock(virtualAudioSource);

// NDI sink
var ndiSink = new NDISinkBlock(new NDISinkSettings("NDITestOutput"));
pipeline.Connect(videoSource.Output, ndiSink.CreateNewInput(MediaBlockPadMediaType.Video));
pipeline.Connect(audioSource.Output, ndiSink.CreateNewInput(MediaBlockPadMediaType.Audio));

// Start
await pipeline.StartAsync();

Platforms

Windows, macOS, Linux, iOS, Android.