[whatwg] on codecs in a 'video' tag.

Kevin Calhoun kcalhoun at apple.com
Tue Apr 3 14:24:25 PDT 2007

On Apr 3, 2007, at 2:13 PM, L. David Baron wrote:

> On Tuesday 2007-04-03 11:52 -0700, Dave Singer wrote:
>> Surely people have comments or questions on other aspects of our
>> proposal?  There is new stuff, new ideas, and open areas, all ripe
>> for discussion....we have engineers standing by, eager to refine and
>> improve the video tag design itself...
> If you want more comments, it would be good to include a URL to get
> the proposal (potentially a message in the list archive, if that's
> the best one).  I'm not sure where to find it amid the hundreds of
> messages on the list.

Apple's CSS Timed Media Module proposal - http://webkit.org/specs/ 
Apple's HTML Timed Media Elements proposal - http://webkit.org/specs/ 

I'm including Maciej's original message regarding Apple's proposals  
below for reference.

A number of the ideas from Apple's HTML proposal have already been  
incorporated into the current working draft of Web Applications 1.0.  
<http://www.whatwg.org/specs/web-apps/current-work/>, naturally.

- Kevin

Begin forwarded message:
> From: Maciej Stachowiak <mjs at apple.com>
> Date: March 21, 2007 5:08:26 PM PDT
> To: "whatwg at whatwg.org List" <whatwg at whatwg.org>
> Subject: [whatwg] Apple Proposal for Timed Media Elements
> Hello WHAT Working Group,
> With the recent discussions about the <video> element, we've  
> decided to post our own proposal in this area. This proposal is a  
> joint effort from the Safari/WebKit team and some of Apple's top  
> timed media experts, who have experience with QuickTime and other  
> media technologies.
> A number of Apple Engineers will follow and participate in further  
> <video> discussions, including myself and my colleague Dave Singer,  
> who has represented Apple in a number of media-related standards  
> groups.
> We started work on these documents before the <video> element was  
> added to the spec and indeed before Opera made their original  
> proposal. But in the interests of getting them out quickly, we  
> decided to publish what we have, rather than revising the documents  
> to be relative to the current spec. This document is still a work  
> in progress, and I hope together we can refine it and fold it into  
> the Web Apps 1.0 spec.
> There are a few areas of difference worth highlighting:
> - Our proposal includes a CSS module, which we will eventually  
> submit to the CSS Working Group. We believe that many aspects of  
> controlling timed media are presentational, and so are best  
> represented in CSS. Although Web Apps 1.0 is not the final  
> destination for this document, we think it makes more sense to  
> consider the whole design at once.
> - We have included a more thorough set of events and properties  
> which we think are needed to build good custom controller UI. In  
> general, we would like to enable not just current web use cases but  
> also somewhat more advanced uses.
> - We have included an <audio> element as well as <video>.
> - We have included a mechanism for static fallback based on  
> container type and codec, so that it's possible to choose the best  
> video format for a client even if user agent codec support varies.
> We will be starting separate threads on these and other key issues.  
> We've posted our current proposals here:
> CSS Timed Media Module proposal - http://webkit.org/specs/ 
> Timed_Media_CSS.html
> HTML Timed Media Elements - http://webkit.org/specs/ 
> HTML_Timed_Media_Elements.html
> We also have a list of areas where we think the proposal could use  
> refinement or additional features, but where we do not yet have a  
> final design to present:
> http://webkit.org/specs/Timed_Media_Elements-Open_Issues.html
> Regards,
> Maciej Stachowiak

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