s3-waveform

Takes an audio file key on S3, creates waveform data for the file, and uploads it back to S3 via streaming.

Installation

$ npm install s3-waveform --save

API

exports.createWaveform(config, callback)

Takes a configuration object, and a callback upon stream completion. Possible configurations below:

• {S3} s3 [required]
  • An AWS.S3 instance, or something with the same interface (mock S3 instance for example).
• {Number} byteSize [required]
• {String} srcBucket [required]
• {String} srcKey [required]
• {String} destBucket [required]
• {String} destKey [required]
• {Number} samples
  • How many data points should be in the resulting waveform data. [default=5000]
• {Number} config.channels
• How many channels is the audio file. [default=2]
• {Number} config.outputBitDepth
• Bit depth of the output waveform data. [default=8]

Test

$ npm test

Only mock tests right now, need to add integration.

License

MIT License, Copyright (c) 2014 Jordan Santell