HTML5 and VideoBas ZoetekouwBas.zoetekouw@surfnet.nl

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HTML5 Video

Report published (jan 2011)

HTML5 Video: current statusby Herman van Dompseler and Bas Zoetekouw

Download athttp://www.mediamosa.org/content/html5-video-current-situation

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What is HTML5?

- HTML 2.0: 1995- HTML 3.2: 1997- HTML 4.0: 1998- XHTML 1.0: 2000- XHTML 1.1: 2001- …- …- HTML5: 201x

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What is HTML5?

HTML5 ≈ HTML + CSS + JS

- Integrates multimedia:- 2D & 3D drawing (Canvas, WebGL) - Audio and video playback- Native SVG support

- New semantic elements: - <nav>, <footer>, <figcaption>, <section>

- Lots of other useful features:- Geolocation- Persistent offline storage (blob, SQL)- Multithreaded JS (“web workers”)- Web fonts

- Extensive overview: http://slides.html5rocks.com/

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HTML5: possibilities

Limitless possibilities!

- Webapps- Games- Multimedia

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HTML5 games

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HTML5 and Video

Support for playing video directly from the browser

<video id="movie" width="320" height="240" preload

controls>

<source src="MY_MOVIE.mp4" />

<source src="MY_MOVIE.webm" type='video/webm />

</video>

- No plugins required- Rendering of video is responsibility of the browser- Video fully accessible from Javascript/DOM- Styling using CSS

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Why HTML5-based video?

- Easy & clean- Open standard- Cross-platform- No more plugins!

- Fancy stuff:

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Support for HTML5 Video

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Browsers

SURFmedia visitors (jan-feb 2011)

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Video formats for HTML5

- Video/audio codec support depends on browser/platform

- Lots of politics involved

- Platforms support own media format:- Apple supports Quicktime in OSX/iOS- Microsoft supports WMV in Windows

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Cross-platform Formats

3 cross-platform formats:

- H.264- Ogg- WebM

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Cross-platform Formats

H.264:- MP4 container- H.264 video (baseline/main/high)- AAC audio

o Modern codecs with high compression rateo Widely supportedo Hardware implementation availableo Very good video-encoders available (x264)o Licensing fees required

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Cross-platform Formats

Ogg:- Ogg container- Theora (VP3) video- Vorbis audio

o Slightly dated video codeco Decent quality videoo No hardware implementationso Not very widely supportedo Open format, free to use

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New kid on the block

WebM:- VP8 video - Vorbis audio- Simplified Matroska container

o Open and Freeo Slightly less advanced than H.264o Support growing rapidly

o Problems:- Ulterior motives?- Possible patent issues

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New kid on the block

“A key factor in the web’s success is that its core technologies such as HTML, HTTP, TCP/IP, etc. are open and freely implementable. Though video is also now core to the web experience, there is unfortunately no open and free video format that is on par with the leading commercial choices. To that end, we are excited to introduce WebM, a broadly-backed community effort to develop a world-class media format for the open web.”

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Client support

No single cross-platform format- Need H.264 and (WebM or Ogg)

Mobile world even more problematic.

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Nothing settled yet

How quickly will IE9 and Firefox 4 be adopted?

Lots of developments:

- H.264 will stay free for consumers- Adobe Flash will support WebM- Google supports WebM in Internet Explorer (!)- Google drops support for MP4/H.264 from Chrome- Microsoft supports MP4/H.264 in Chrome (!)

What’s next?

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Why no HTML5?

- Complexity shifted to video backend- Need to support different/multiple formats

- Some features not available (yet?):- DRM- Live recordings- RTP streaming/multicast

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Conclusion

HTML5 Video is here to stay

- Abide your time

- But be prepared

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Be prepared!

- Get rid of proprietary formats- Add support for Ogg or WebM

- Possible right now: implement HTML5 video with Flash fallback

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http://www.mediamosa.org/content/html5-video-current-situation

http://demo.mediamosa.org/content/html5-browser-support

Bas Zoetekouwb.zoetekouw@surfnet.nl

www.surfnet.nl

Presentation released under Creative Commonshttp://creativecommons.org/licenses/by/3.0/