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Re: Interactive Television

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Sun, 14 Aug 2011 21:49:45 +1000
Message-ID: <CAHp8n2nYyg09dJxxabB_kKXQORzpBjAQ9AkV_xP5Y6AQpVFAEg@mail.gmail.com>
To: Adam Sobieski <adamsobieski@hotmail.com>
Cc: public-web-and-tv@w3.org
Hi Adam,

I agree that this could be an interesting extension to the UI for
videos. However, I do not believe that HTML5 is ready for this yet.
Here's the reasoning: There are not many (if any) Flash players that
expose such a UI and Flash video has been around for many years now.
So, when looking at what the real world use case for video controls
is, we will likely end up having to say that most controls do not
contain such functionality. Thus, it does not meet the requirements
for inclusion in HTML, see
http://www.w3.org/TR/html-design-principles/ in particular 3.1 "Real
Problems".

I believe personally that the best way to get such a feature is by
showing its use on actual sites and how it solves real problems to
users. Doing this in JavaScript first is probably the best way
forward. This will likely also help in developing good designs for the
layout of the controls.

Best Regards,
Silvia.

On Sun, Aug 14, 2011 at 6:07 PM, Adam Sobieski <adamsobieski@hotmail.com> wrote:
> Silvia,
>
> Thanks for the link to MetaVid.
>
> With regard to the HTML5 specification,
>
> "If the attribute is present, or if scripting is disabled for the media
> element, then the user agent should expose a user interface to the user.
> This user interface should include features to begin playback, pause
> playback, seek to an arbitrary position in the content (if the content
> supports arbitrary seeking), change the volume, change the display of closed
> captions or embedded sign-language tracks, select different audio tracks or
> turn on audio descriptions, and show the media content in manners more
> suitable to the user (e.g. full-screen video or in an independent resizable
> window). Other controls may also be made available."
>
> can become something similar to:
>
> "If the attribute is present, or if scripting is disabled for the media
> element, then the user agent should expose a user interface to the user.
> This user interface should include features to begin playback, pause
> playback, seek to an arbitrary position in the content (if the content
> supports arbitrary seeking), select intervals of content and to provide an
> extensible context menu upon selections, change the volume, change the
> display of closed captions or embedded sign-language tracks, select
> different audio tracks or turn on audio descriptions, and show the media
> content in manners more suitable to the user (e.g. full-screen video or in
> an independent resizable window). Other controls may also be made
> available."
>
> The described JavaScript layer could also then include a specified means of
> indicating and accessing user selection intervals. Additionally, the context
> menu functionality can include extensibility for both platform shell
> extensions and browser plugins. Extensions and plugins can also access
> selections as they can for other hypertext document selections. The matter
> can be phrased as extending the functionality of document, hypertext
> document, in that regard, to the new hypertext document elements of <audio/>
> and <video/>.
>
> While website developers can implement custom user interfaces for multimedia
> components, it is posited that the HTML5 specification can describe the
> selection of intervals for cross-platform and cross-browser functionality
> and extensibility. The selecting of multimedia content is viewed as a new
> verb that enhances the previous set of play, pause, seek and so forth.
> Website developers can have the flexibility to make use of the default user
> interface or to customize the various user interface details of the enhanced
> functionality of the <audio/> and <video/> hypertext document elements.
>
>
>
> Kind regards,
>
> Adam Sobieski
>
>
>> From: silviapfeiffer1@gmail.com
>> Date: Sun, 14 Aug 2011 14:57:45 +1000
>> Subject: Re: Interactive Television
>> To: adamsobieski@hotmail.com
>> CC: public-web-and-tv@w3.org
>>
>> Hi Adam,
>>
>> On Fri, Aug 12, 2011 at 5:59 PM, Adam Sobieski <adamsobieski@hotmail.com>
>> wrote:
>> > Some scenarios that interest me are searchable and navigable transcripts
>> > such as illustrated at http://www.cspan.org.  Video tracks can provide
>> > data
>> > for JavaScript to make use of DHTML for user interfaces for navigation
>> > within and between videos.
>>
>> Just wanted to point out http://metavidstorage03.ucsc.edu/ to you as
>> an example of searchable and navigable transcripts using open source
>> technology that is very similar to what is now specified in HTML5. It
>> should demonstrate some of what would already be possible with the
>> given HTML5 specification and WebVTT once implemented in Web browsers.
>>
>> Cheers,
>> Silvia.
>
Received on Sunday, 14 August 2011 11:50:35 UTC

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