StreamQualityMOS

StreamQualityMOS is a Javascript package used to calculate the MOS (mean opinion score) of a video stream quality. The score ranges from 0-5, zero being the worse and 5 being the best.

Installation and Usage

Install with npm or yarn

$ npm install stream-quality-mos # NPM 
$ yarn add stream-quality-mos  # Yarn 

Usage

import StreamQualityMos from 'stream-quality-mos';
 
const fakeStream = new FakeVideoStream();
const streamQualityMos = new StreamQualityMos({ width: 400, height: 400 });
setInterval( () => {
    const fakeStats = { timestamp: fakeStream.timestamp, bytes: fakeStream.bytesSent }
    streamQualityMos.onStats(fakeStats, (score) => console.log(score))
}, 1000);

Development

Want to contribute? Great!

Just create a PR and make sure tests pass with npm test.

Todos

• Calculate Audio MOS score and incorporate it with Video MOS score.

Docs

See the Wiki

Credits

Charlie Robinson and his repo opentok-mos-estimator