ibt-stream

Description

Parse iRacing telemetry data using a stream.

Installation

To install:

npm install ibt-stream

Usage

import { IbtStream } from 'ibt-stream';

fs.createReadStream('./telemetry.ibt')
  .pipe(new IbtStream())
  .on('data', (data) => {
    switch (data.type) {
      case 'IbtHeader':
        console.log('Header', data.value);
        break;
      case 'IbtVarHeaders':
        console.log('VarHeaders', data.value);
        break;
      case 'IbtSessionInfo':
        console.log('SessionInfo', data.value);
        break;
      case 'IbtSample':
        console.log('Sample', data.value);
        break;
      default:
    }
  });

The process is CPU bound, and if you would like to stream the samples at a lower tick rate to limit CPU, you can pass in tickRate in the constructor options which accepts a value betwen 1 and 1000 (samples per second).

fs.createReadStream('./telemetry.ibt')
  .pipe(new IbtStream({ tickRate: 60 }))

To parse a Telemetry file from an AWS S3 Bucket

const s3 = new S3({ ...s3options });

const s3.getObject({ ...params }).createReadStream()
  .pipe(new IbtStream());

License

Copyright @ MIT. All rights reserved.

Licensed under the MIT license.

Thanks

Thanks to https://github.com/SkippyZA/ibt-telemetry for the format.