Vanilagy

/**
 * Utility class for performing time stretching on a multi-channel audio signal. The input audio will be stretched by
 * a configurable factor without changing its pitch.
 *
 * Internally, this uses a WSOLA-like algorithm.
 */
export class TimeStretcher {
  factor: number; // This value can be changed at runtime

  private numberOfChannels: number;

Vanilagy

const RGBAToYUV420 = ({ width, height, data }: ImageData) => {
    // Assume both width and height are even
	let yuv = new Uint8Array(width * height * 1.5);

    // Use loop tiling as a cache optimization
	const tileSize = 64;
	for (let y0 = 0; y0 < height; y0 += tileSize) {
		for (let x0 = 0; x0 < width; x0 += tileSize) {
			let limitX = Math.min(width, x0 + tileSize);
			let limitY = Math.min(height, y0 + tileSize);

Vanilagy

// @Vanilagy 2019
//
// Example: 
// structuredClone([5, {hello: 'world'}, new Set()]).then((data) => console.log(data));
// > [5, {hello: "world"}, Set(0)]

var structuredClone = (function() {
    var sender = new BroadcastChannel('structuredClone'),
        receiver = new BroadcastChannel('structuredClone');