how to generate video thumbnail in node.js?

Question

I am building an app with node.js, I successfully uploaded the video, but I need to generate a video thumbnail for it. Currently I use node exec to execute a system command

Answer 1

Reference to GitHub fluent-ffmpeg project.

Repeating example from original StackOverflow answer:

var proc = new ffmpeg('/path/to/your_movie.avi')
  .takeScreenshots({
      count: 1,
      timemarks: [ '600' ] // number of seconds
    }, '/path/to/thumbnail/folder', function(err) {
    console.log('screenshots were saved')
  });

Answer 2

There is a node module for this: video-thumb

It basically just wraps a call to exec ffmpeg

Answer 3

Using media-thumbnail, you can easily generate thumbnails from your videos. The module basically wraps the ffmpeg thumbnail functionality.

const mt = require('media-thumbnail')

mt.forVideo(
  './path/to/video.mp4',
  './path/to/thumbnail.png', {
    width: 200
  })
  .then(() => console.log('Success'), err => console.error(err)) 

You can also create thumbnails from your images using this package.

Answer 4

I recommend using https://www.npmjs.com/package/fluent-ffmpeg to call ffmpeg from Node.js

Answer 5

Instead I would recommend using thumbsupply. In addition to provide you with thumbnails, it caches them to improve performance significantly.

npm install --save thumbsuppply

After installing the module, you can use it in a following way.

const thumbsupply = require('thumbsupply')("com.example.application");

thumbsupply.generateThumbnail('some-video.mp4')
.then(thumb => {
    // serve thumbnail
})

Answer 6

Resize by adding a -s widthxheight option to your command.