domenic

// Let `doAjax`, `fadeIn`, `fadeOut`, and `delay` be promise-returning functions.

// In all the following examples, `example` is meant to return a promise that is fulfilled when
// all operations are completed, or rejected if any of the steps fail.

// ES5
function example() {
    return doAjax("data.json").then(function (data) {
        document.getElementById("data").innerText = data;

Jim-Bar

About YUV formats

First of all: YUV pixel formats and Recommended 8-Bit YUV Formats for Video Rendering. Chromium's source code contains good documentation about those formats too: chromium/src/media/base/video_types.h and chromium/src/media/base/video_frame.cc (search for RequiresEvenSizeAllocation(), NumPlanes() and those kinds of functions).

YUV?

You can think of an image as a superposition of several planes (or layers in a more natural language). YUV formats have three planes: Y, U, and V.

Y is the luma plane, and can be seen as the image as grayscale. U and V are reffered to as the chroma planes, which are basically the colours. All the YUV formats have these three planes, and differ by the different orderings of them.