Book Image

HTML5 Multimedia Development Cookbook

Book Image

HTML5 Multimedia Development Cookbook

Overview of this book

HTML5 is the most significant new advancement the web has seen in many years. HTML5 adds many new features including the video, audio, and canvas elements, as well as the integration of SVG. This cookbook is packed full of recipes that will help you harness HTML5’s next generation multimedia features. HTML5 is the future.Whether you’re a seasoned pro or a total newbie, this book gives you the recipes that will serve as your practical guide to creating semantically rich websites and apps using HTML5. Get ready to perform a quantum leap harnessing HTML5 to create powerful, real world applications. Many of the new key features of HTML5 are covered, with self-contained practical recipes for each topic. Forget hello world. These are practical recipes you can utilize straight away to create immersive, interactive multimedia applications. Create a stylish promo page in HTML5. Use SVG to replace text dynamically. Use CSS3 to control background size and appearance. Use the Canvas to process images dynamically. Apply custom playback controls to your video.
Table of Contents (16 chapters)
HTML5 Multimedia Development Cookbook
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface

Animating a sequence of images using Easel.js and the canvas tag


We can animate image strips called sprites by creating arrays and functions using the Easel.js JavaScript library and then manipulating them with the canvas element. In this recipe, we will animate the same strip but display two differently timed sequences.

Getting ready

Download the code files for this recipe to use the Easel.js framework library as well as supporting files. You will need a recent browser that will display HTML5 elements to view properly and test the code used in this recipe.

How to do it...

Create the opening tags for an HTML5 file. Your code should look similar to the following code block:

<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title> Animating images using BitmapSequence and SpriteSheet</title>

Link to the main stylesheet styles.css used in this recipe: <link href="styles.css" rel="stylesheet" type="text/css" ...