is-mp3

Check if a Buffer/Uint8Array is a MP3 file.

Install

$ npm install --save is-mp3

$ bower install --save is-mp3

$ component install hemanth/is-mp3

Usage

Node.js

var readChunk = require('read-chunk'); // npm install read-chunk
var isMp3 = require('is-mp3');
var buffer = readChunk('meow.mp3', 0, 3);
 
isMp3(buffer);
//=> true

Browser

var xhr = new XMLHttpRequest();
xhr.open('GET', 'meow.mp3');
xhr.responseType = 'arraybuffer';
 
xhr.onload = function () {
    isMp3(new Uint8Array(this.response));
    //=> true
};
 
xhr.send();

API

isMp3(buffer)

Accepts a Buffer (Node.js) or Uint8Array.

It only needs the first 4 bytes.

License

MIT © Hemanth.HM