jsgif foo

gistfile1.txt

var encoder = new GIFEncoder();
encoder.setRepeat(0); // number of times the movie should loop, 0 = forever
encoder.setDelay(Math.floor(1000/settings.fps)); // ms delay between frames
encoder.start();

encoder.addFrame(canvas.getContext('2d'));

encoder.finish();
var binary_gif = encoder.stream().getData();
var data_url = 'data:image/gif;base64,'+Base64.encode(binary_gif);
var img = document.getElementById('gifmovie');
img.src = data_url;