how to generate video thumbnail in node.js?

Question

how to generate video thumbnail in node.js?

am building a 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 excute a system command of ffmpeg to make the thumbnail

   exec("C:/ffmpeg/bin/ffmpeg -i Video/" + Name  + " -ss 00:01:00.00 -r 1 -an -vframes 1 -f mjpeg Video/" + Name  + ".jpg")

this code is coming from a tutorial from http://net.tutsplus.com/tutorials/javascript-ajax/how-to-create-a-resumable-video-uploade-in-node-js/

the code above did generate a jpg file but its not a thumbnail but a video screen shot, i wonder is there any other method to generate video thumbnail,or how to exec the ffmpeg command to make a real thumbanil (resized),and i prefer png file, please help!!!

node.js
video
ffmpeg
thumbnails

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

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

Answer 3

There is a node module for this: video-thumb

It basically just wraps a call to exec ffmpeg

Answer 4

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