Intuitive abstractions that make transcoding media easy. Provides behind-the-scenes audio support for discord.js

npm install prism-media

---

Dependencies

• Opus
  • krypton (development)
  • node-opus (^0.2.7)
  • opusscript (^0.0.4)
• Other
  • ffmpeg-binaries (^3.2.2-3)

FFmpeg Transform

const fs = require('fs');
const prism = require('prism-media');

const input = fs.createReadStream('./file.mp3');
const output = fs.createWriteStream('./output.pcm');
const transcoder = new prism.FFmpeg({
  args: [
    '-analyzeduration', '0',
    '-loglevel', '0',
    '-f', 's16le',
    '-ar', '48000',
    '-ac', '2',
  ],
});

input.pipe(transcoder).pipe(output);

OggOpus Demuxer

const prism = require('prism-media');
const fs = require('fs');
const opus = require('node-opus');

const decoder = new opus.Decoder({ rate: 48000, channels: 2, frameSize: 960 });

fs.createReadStream('./audio.ogg')
  .pipe(new prism.OggOpusDemuxer())
  .pipe(decoder)
  .pipe(fs.createWriteStream('./audio.pcm'))