dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

notoriousb1t

# define mapper function
map <- function(list, fn) {
    i <- 0;
    len <- length(list);
    result <- vector(length = len);

    while (i < len) {
        i <- i + 1;
        result[i] <- fn(list[i]);
    }