A simple live streaming library written in JavaScript with ffmpeg.

This library require ffmpeg to be installed in your system/container.

• module(options)
  • Options
  • play(ReadableStream)
  • playPCM(ReadableStream, options)
  • Objects
    • stream
    • header
  • Events
• module.video(options, rtmp_url)
  • Options
  • play(ReadableStream)
  • Events
  • Objects
    • stream
    • header

A function to create a new broadcaster. Return stream.Duplex.

• format The radio audio format. Default is mp3.
• rate Radio audio samplerate. Default is 44100.
• channels Radio audio channels. Default is 2.
• bitrate Radio audio bitrate. Default is 192.
• acodec Radio audio codec. Default is mp3.

• play(ReadableStream) A function to play audio from ReadableStream or "string". A string could be a URL, or file path.
• playPCM(ReadableStream, options) A function to play PCM audio from ReadableStream or "string". A string could be a URL, or Filepath. Available options:

1. rate The PCM audio bitrate. The default is 44100.
2. channels The PCM audio channels. The default is 2.

• stream The source of current audio. Return ReadableStream.
• header The radio buffer header.

Some of events from stream.Duplex also included here.

• error A event that emit some error when occured.
• finish A event that emit when finished playing the current song.

Just like the main function, But instead of audio, It's for broadcasting Video.

• rtmp_url RTMP url to stream (Optional).

• format Radio video format. Default is mpegts.
• vcodec Radio video codec. This is different from format option. Default is mpeg2video.
• arate Radio video audio samplerate. Default is 44100.
• achannels Radio video audio channels. Default is 2.
• abitrate Radio video audio bitrate. Default is 192.
• acodec Radio video audio codec. Default is aac.
• scale Radio video scale. Default is -1:720 means the output video will have a width of 720px and the height will be set based on the ratio of the original video.

• play(ReadableStream) A function to play video from ReadableStream or "string". A string could be a URL, or file path.

Some of events from stream.Duplex also included here.

• error A event that emit some error when occured.
• finish A event that emit when finished playing the current video.

Same as the main function.

Simply a repeater for ReadableStream. Suitable when you face some performance issue in single duplex. Return a function.

const fs = require("fs");
const openradio = require("openradio");
const radio = openradio(); // Broadcaster
const repeater = openradio.repeater(radio); // Create a repeater of "radio" duplex.

// The repeater is responsible in writting incomming buffer from "radio" duplex
// for multiple WriteableStream at the same time without decreasing the duplex performance.

let r1 = repeater(fs.createWriteStream("stream1.mp3"));
let r2 = repeater(fs.createWriteStream("stream2.mp3"));
let r3 = repeater(fs.createWriteStream("stream3.mp3"));

// Assume that we're enough writting buffers to fs.createWriteStream("stream2.mp3")
// And so we're gonna stop writting.
r2();

// Even though the repeater stop writting, It's WriteableStream is not ended.
// So you need to end them manually.

See example folder

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Copyright 2023 Yonle [email protected]

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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