# RTMP streaming

Media Blocks SDK .Net

RTMP (Real-Time Messaging Protocol): Developed by Adobe, RTMP is a protocol used for streaming audio, video, and data over the Internet, optimized for high-performance transmission. It enables efficient, low-latency communication, commonly used in live broadcasting like sports events and concerts.

Use the RTMPSinkSettings class to set the parameters.

# Block info

Name: RTMPSinkBlock.

Pin direction	Media type	Pins count
Input audio	audio/mpeg [1,2,4]	one
	audio/x-adpcm
	PCM [U8, S16LE]
	audio/x-speex
	audio/x-mulaw
	audio/x-alaw
	audio/x-nellymoser
Input video	video/x-h264	one

# The sample pipeline

graph LR;
    VirtualVideoSourceBlock-->H264EncoderBlock;
    VirtualAudioSourceBlock-->AACEncoderBlock;
    H264EncoderBlock-->RTMPSinkBlock;
    AACEncoderBlock-->RTMPSinkBlock;

# Sample code

// 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);

// H264/AAC encoders
var h264Encoder = new H264EncoderBlock(new OpenH264EncoderSettings());
var aacEncoder = new AACEncoderBlock();

pipeline.Connect(videoSource.Output, h264Encoder.Input);
pipeline.Connect(audioSource.Output, aacEncoder.Input);

// RTMP sink
var sink = new RTMPSinkBlock(new RTMPSinkSettings());
pipeline.Connect(h264Encoder.Output, sink.CreateNewInput(MediaBlockPadMediaType.Video));
pipeline.Connect(aacEncoder.Output, sink.CreateNewInput(MediaBlockPadMediaType.Audio));

// Start
await pipeline.StartAsync();

# Platforms

Windows, macOS, Linux, iOS, Android.