go-novon

A decentralised video streaming host client to stream RTMP to novon

Prerequisites

• ffmpeg: https://ffmpeg.org/
• Golang: https://go.dev/ (version 1.21 or above)

Building from source

1. install the latest go
2. build the app: go build
3. run ./gonovon

Video bitrate, codecs, encoding configuration

Generally the same as all major streaming platforms, stick to h264 codecs for compatibility. Set your keyframe to 2s for a good balance between fast delivery and efficiency. High quality fast moving streams of 1080p 60hz should aim for a 6000kbps video bitrate.

Generally lower bitrates provide faster delivery, and allow for more viewers, lower the bitrate if buffering is an issue, or if your source media does not require these high bitrate for a good representation to improve viewer experience.

Streaming with OBS

• Settings -> Stream
  • Service: Custom
  • Server: the location of the running gonovon application, if its on the same machine as your OBS application this would be http://127.0.0.1 or http://localhost
  • Stream Key: name of your stream host path (this is not displayed on novon.tv but is required and can be used to utilize more features MediaMTX has to offer.
• Settings -> Output -> Streaming
  • Video Encoder: x264 or if you have a recent NVIDIA GPU: NVIDIA NVENC H.264
  • Keyframe interval: 2s
  • Refer to the previous paragraph for more info on bitrate, codecs, and encoding configuration.

Once go-novon is up and running you can at any time start and stop your stream.

Dependencies

• MediaMTX - https://github.com/bluenviron/mediamtx/ [MIT license]

  A fork of MediaMTX is encapsulated to host the RTMP server and mux the stream to MPEG-TS segments for delivery

• nkn-sdk-go - https://github.com/nknorg/nkn-sdk-go [Apache-2.0 license]

  The nkn network is used to amplify and distribute your video stream by multicasting; minimizing bandwidth requirements for the host while being able to reach a large number of viewers