Add watermark with Node.js and ffmpeg

watermark.js

var ffmpeg = require('ffmpeg');

try {
  var process = new ffmpeg('example.mp4');
  process.then(function (video) {
    console.log('The video is ready to be processed');
    var watermarkPath = 'watermark-suissa.png',
      newFilepath = './video-com-watermark.mp4',
      settings = {
          position        : "SE"      // Position: NE NC NW SE SC SW C CE CW
        , margin_nord     : null      // Margin nord
        , margin_sud      : null      // Margin sud
        , margin_east     : null      // Margin east
        , margin_west     : null      // Margin west
      };
    var callback = function (error, files) {
      if(error){
        console.log('ERROR: ', error);
      }
      else{
        console.log('TERMINOU', files);
      }
    }
    //add watermark
    video.fnAddWatermark(watermarkPath, newFilepath, settings, callback)

  }, function (err) {
    console.log('Error: ' + err);
  });
} catch (e) {
  console.log(e.code);
  console.log(e.msg);
}

how to edit watermark pixel?

how can change the margin values ?

@agates4

only remove existing video file if there is one. otherwise there will be error.

Fix is below

     // deletes any existing video so we can replace it
     if (fs.existsSync(newFilepath)) {
          fs.unlinkSync(newFilepath);
      }

Getting this error while trying to adding watermark to a video, video duration is 25 min and the size is 110mb
One more thing conversation is taking 1 hour for 110mb video
Please help

it helped me a lot i am very thankfull to you for sharing this