https://github.com/t1st3/is-mkv

Check if a Buffer/Uint8Array is a MKV video
https://github.com/t1st3/is-mkv

buffer detect file javascript magic-numbers mkv uint8array

Last synced: about 1 month ago
JSON representation

Check if a Buffer/Uint8Array is a MKV video

• Host: GitHub
• URL: https://github.com/t1st3/is-mkv
• Owner: t1st3
• License: mit
• Created: 2016-01-19T23:54:45.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2020-06-03T09:18:46.000Z (almost 5 years ago)
• Last Synced: 2025-03-14T06:46:46.412Z (2 months ago)
• Topics: buffer, detect, file, javascript, magic-numbers, mkv, uint8array
• Language: JavaScript
• Size: 1.05 MB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: readme.md
  • License: license

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README

        
# is-mkv

[![NPM version](https://img.shields.io/npm/v/is-mkv.svg)](https://www.npmjs.com/package/is-mkv)

[![Build Status](https://travis-ci.org/t1st3/is-mkv.svg?branch=master)](https://travis-ci.org/t1st3/is-mkv)

> Check if a Buffer/Uint8Array is a [MKV](https://en.wikipedia.org/wiki/Matroska) video

## Install

```sh

$ npm install --save is-mkv

```

## Usage

### Node.js

```js

var readChunk = require('read-chunk'); // npm install read-chunk

var isMkv = require('is-mkv');

var buffer = readChunk.sync('unicorn.mkv', 0, 39);

isMkv(buffer);

//=> true

```

### Browser

```js

var xhr = new XMLHttpRequest();

xhr.open('GET', 'unicorn.mkv');

xhr.responseType = 'arraybuffer';

xhr.onload = function () {

	isMkv(new Uint8Array(this.response));

	//=> true

};

xhr.send();

```

## API

### isMkv(buffer)

Accepts a Buffer (Node.js) or Uint8Array.

It only needs the first 39 bytes.

## License

MIT © [t1st3](https://t1st3.com)