Node.js GIF generation with gifencoder

nodejs-gif

var GIFEncoder = require('gifencoder');
 
function createGifEncoder(resolution, response) {
 
  var encoder = new GIFEncoder(resolution.x * 32, resolution.y * 32);
 
  var stream = encoder.createReadStream();
  response.type("gif");
  stream.pipe(response);
 
  encoder.start();
  
  // Set GIF parameters
  encoder.setRepeat(0);   // 0 for repeat, -1 for no-repeat
  encoder.setDelay(150);  // frame delay in ms
  encoder.setQuality(15); // image quality. 10 is default.
 
  return encoder;
 
}
 
function sendAsGIF(response, canvas) {
 
  var encoder = createGifEncoder({x: canvas.width, y: canvas.height}, response);
 
  var context = canvas.getContext("2d");
 
  // Add 3 frames
  encoder.addFrame(context);
  encoder.addFrame(context);
  encoder.addFrame(context);
 
  encoder.finish();
 
};