# NDI streaming output

Media Blocks SDK .Net

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

graph LR;
    VirtualVideoSourceBlock-->NDISinkBlock;
    VirtualAudioSourceBlock-->NDISinkBlock;

# 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.