go-rtmp-server

What it does

RTMP is still the network protocol most encoders (OBS, hardware encoders, phones) use to push a live stream to a server. This project implements the server side without an off-the-shelf RTMP library.

What’s implemented

• Handshake: the C0/C1/C2 and S0/S1/S2 exchange that opens every connection.
• AMF0: encoding and decoding the command messages (connect, createStream, publish) that set up a stream.
• Chunk stream parsing: reassembling interleaved messages from RTMP chunks.
• FLV muxing: writing H.264 (AVC) video and AAC audio into FLV tags, including sequence headers.

What I’d do next

• Saving & Transcoding: Transcode into different video formats and qualities

Read more

I wrote up the hardest parts in Building an RTMP server from scratch in Go.