Download e-book for iPad: Beginning HTML5 Media: Make the most of the new video and by Silvia Pfeiffer

By Silvia Pfeiffer

ISBN-10: 1484204611

ISBN-13: 9781484204610

Beginning HTML5 Media, moment Edition is a entire creation to HTML5 video and audio. The HTML5 video average permits browsers to help audio and video parts natively. This makes it really easy for internet builders to submit audio and video, integrating either in the normal presentation of websites. for instance, media components might be styled utilizing CSS (style sheets), seen on a cellular machine, and manipulated in a Canvas or an audio filter out graph. The publication bargains options for supplying accessibility to media parts, allowing constant dealing with of other representations of media assets. The replace comprises all the adjustments and revisions because the first HTML5 draft.

Beginning HTML5 Media dives deep into the markup that's brought for media aspect help in browsers. You’ll discover the default person interface provided via browsers for media components, in addition to the JavaScript API supplied to regulate their habit. You’ll additionally the best way to account for H.264, WebM and Ogg Theora formats in addition to discover the rising internet Audio API commonplace, which gives an in depth set of hardware-accelerated audio filters to accomplish a degree of audio sign manipulation within the browser formerly basically on hand to audio professionals.

What you’ll learn

  • How to create cross-browser markup in HTML to incorporate audio and video into your net pages
  • How to exchange the default controls of net browsers along with your personal or "skin" your media player
  • How to exploit the JavaScript API for media elements
  • How to combine media parts with different HTML5 constructs similar to CSS, Canvas, or internet employee Threads
  • How to make audio and video accessible
  • How to exploit media fragment URIs to handle definite temporal subparts or tracks of a media resource
  • How to paintings with the internet Audio API

Who this publication is for

This e-book is in case you are knowledgeable in authoring and publishing websites, yet have by no means applied audio and video. it is going to additionally support these expert within the use of Adobe Flash, Microsoft Silverlight, or QuickTime to appreciate what's taking place in HTML5 media and the way to take advantage of the recent media components.

Table of Contents

1. Encoding Media

2. utilizing and Manipulating Media Elements

3. The JavaScript API

4. Accessibility and Internationalization of HTML5 Media

5. Manipulating Media through Canvas

6. Manipulating Audio throughout the WebAudio API

Show description

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Additional info for Beginning HTML5 Media: Make the most of the new video and audio standards for the Web

Sample text

Listing 2-25. write("

  • "+types[i]+" : "+support+"
  • "); }

    43 Chapter 2 ■ Using and Manipulating HTML5 Video and Audio Elements While all browsers are moving to a so-called sniffing of content types by downloading a small piece of the file to check its type, older browser versions still rely on the MIME types of the files being served correctly. It’s best practice to deliver correct MIME types for your files anyway. So, make sure your web server reports the correct MIME types for your files.

    Google Chrome doesn't yet seem to provide keyboard controls for the media elements. Next in line is Opera which, as shown in Figure 2-12, closely resembles those from Chrome. Figure 2-12. The Opera controls Opera's controls provide the following functionality: • play/pause toggle • timeline with direct jump to time offset (seeking) • timeline displays playback position and buffer progress • file duration display upon load, playback time display during playback • volume on/off button • volume slider • full-screen button Opera also makes these controls accessible and easily usable through keyboard control.

    Listing 2-19. mp3" controls preload="none"> Web developers may choose “none” in a situation where they do not expect the user to actually play back the media resource and want to minimize bandwidth use. A browser would typically load the setup information of the audio resource, including metadata, such as the duration of the resource. Without the metadata, the duration of the resource cannot be displayed. Thus, choosing no preload only makes sense when dealing with a large number of audio resources.

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    Beginning HTML5 Media: Make the most of the new video and audio standards for the Web by Silvia Pfeiffer


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