W3C Mission

“Leading the Web to its full potential.”

W3C is a collaborative community where experts develop the standards that make the Web work, and that make the Web accessible and useful to people around the world.

International Presence

W3C has 425 members in 40 countries, offices in 20 countries, and 3 host sites.

What's on the Internet tonight?

The Internet is becoming consumers' primary entertainment source […]

— Saul Berman, IBM Media & Entertainment Strategy and Change

Video Forecast

W3C Workshop

W3C Video on the Web Workshop

12-13 December 2007, San Jose, California and Brussels, Belgium

Hosted by Cisco Systems

W3C Workshop Participants

Accenture, Adobe Systems, Annodex Association, Apple, CBS Interactive, CableLabs, Canon, Capgemini, CWI, Cisco Systems, Dailymotion, Hitachi, Hot Potato, IBBT, IJS, MTV Networks, Meraka Institute, Motorola, Move Networks, Mozilla Foundation, Nemours Foundation, Nokia Corporation, RealNetworks, Samsung Electronics, Sony, Sun Microsystems, Thomson, Turner Broadcasting System, University Of California at Santa Cruz, University of Wollongong, VRT medialab, Via Licensing, Walt Disney Internet Group, Web3D Consortium, Wright State University, YouTube, thePlatform

Workshop Laundry list

• <video> HTML 5.0
• Codecs and formats
• Metadata
• Content protection
• Media fragment
• Accessibility
• Tagging
• Searchability
• Synchronization, Temporal properties for styling
• Distribution: cost, QoS, tracking, mobile, etc.
• Playlist files
• …

HTML 5.0 <video>

<video src='myMovie' id='vid' />

var vid = document.getElementById("vid");
vid.play();
vid.pause();
vid.stop();
vid.muted = true;

vid.addCueRange("ranges", 10, 20, false,
                enterCallBack, exitCallBack);

Click on the text, e.g. vid.play(), to play/pause/stop the video.

SVG 1.2 <video>

Or how to make HTML, SVG, CSS, JS, and Video fit together?

<svg:g>
  <svg:g id='vid' clip-path="url(#etri)">
    <svg:video  xlink:href="myMovie" id='vid' />
  </svg:g>
  <svg:use xlink:href="#vid"
              transform="scale(1 -1)"
              mask="url(#fade)"/>
</svg:g>

var vid = document.getElementById("vid");
vid.beginElement();

This is a paragraph in HTML on top of the video.

CSS opacity allows this video to be partially transparent.

Click on the text vid.beginElement() to begin the video.

Codecs and formats

HTML 5 Requirements for a Video codec

• Known not to require per-unit or per-distributor licensing
• Compatible with the open source development model
• Of sufficient quality as to be usable
• Not an additional submarine patent risk for large companies

None of the codecs fit the requirements for HTML 5…

Video in the Web Activity

http://www.w3.org/2008/WebVideo

• Timed Text Working Group (captioning, video description)
• Media Fragments Working Group (video, audio, and images)
• Media Annotation Working Group: Develop a simple lingua franca ontology and map it to existing formats
• Best Practices and Guidelines for Media Content on the Web (see next slide)

Media Fragments: Spatial and Temporal

Will provide URI-based mechanisms for uniquely identifying temporal and spatial fragments for media objects on the Web, such as video, audio, and images.

Media Fragments Working Group

Chairs: Erik Mannens (IBBT), Raphaël Troncy (CWI)

Address a region of a media object and the impact at the application level (allow full or partial media retrieval using the HTTP protocol).

http://dig.csail.mit.edu/2007/09/OneWebDay#t=24m16s-30m12s

http://www.example.org/imedia.mov#rect(50,50,200,100)

Metadata

• Many standards: MPEG 7, SMIL, iTunes XML, Yahoo! MediaRSS, CableLabs VOD Metadata Content, Video sitemaps, etc.
• Different sources: Content Creator, Publisher, Professional Content, Users.
• Survivability: allowing the metadata to survive along the delivery chain (transcoding, republication, syndication, etc.).
• Ability to add metadata without touching the data

Goals:

• Search
• Discover

Related: Metadata Working Group (Canon, Sony, Apple, Microsoft, Adobe)

Content protection

• Pushed by the content owners: monetizing commercial content
• Enforce usage rights
• Monitor content usage
• DRM, watermarking, fingerprinting

Media Annotations Working Group: Core Ontology

Chair: Soohong Daniel Park (Samsung)

simple lingua-franca ontology

Media Annotations Working Group: Metadata API

Client side read-only media annotations API

var vid = document.getElementById("vid");
vid.getTitle();
vid.getAuthor();
vid.getRights();
vid.getLicense();
vid.getCreationDate();

See demo

Guidelines for Media Content on the Web (proposal)

• Scope is deployment, use, and manipulation of media content.
• Targeted towards user agents, authoring tools, protocols, and formats.

Potential items on the list:

• Transport protocol guidelines, e.g. bandwidth, use of the HTTP protocol.
• content-adaptation guidelines, e.g. video resolution
• Dealing with media annotations
• User experience guidelines, e.g. localization, captioning, video description, user interface
• Video API guidelines
• Linking from Video content

So, What's in the Web for IPTV?

Web technologies are getting deployed on mobiles and televisions.

• Integration Computer/HD Television (e.g. agenda)
• Rich Web Applications: HTML/SVG, CSS, JS
• Widgets
• Bookmarking
• Leveraging the Web and its social networks (imdb, wikipedia, etc.)

Thank you

Video on the Web is not just what you see

— it's what you can search, discover, create, distribute and manage.

http://www.w3.org/2008/WebVideo

웹의 모든 잠재력을 이끌어 내기 위하여…

Slides at http://www.w3.org/2008/Talks/26-video-plh/