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Re: CfC: to publish "The picture element" specification as a First Public Working Draft (FPWD)

From: Cyril Concolato <cyril.concolato@telecom-paristech.fr>
Date: Tue, 05 Feb 2013 06:45:52 +0100
Message-ID: <51109C90.6010801@telecom-paristech.fr>
To: public-html-admin@w3.org
Le 04/02/2013 13:45, Marcos Caceres a écrit :
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>
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> On Monday, 4 February 2013 at 12:39, Bruce Lawson wrote:
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>> On Mon, 04 Feb 2013 12:30:29 -0000, Marcos Caceres <w3c@marcosc.com (mailto:w3c@marcosc.com)> wrote:
>>
>>
>>> On Monday, 4 February 2013 at 11:59, Silvia Pfeiffer wrote:
>>>> I do wonder whether reusing <source> is a good idea or whether it
>>>> should just be something different for images...
>>>
>>>
>>> I wondered the same. But advice I got from different people was to resue
>>> existing elements instead of inventing new ones.
>>
>>
>> It seems to me (speaking personally rather than for Opera) that
>> conceptually there is no difference between <source> that chooses a source
>> file for <video>/ <audio> depending on a media query, and a mechanism that
>> chooses a source file for a responsive image element depending on a media
>> query. So it feels to me that minting a new element for authors to get to
>> grips with because of implementation/ specification complexity violates
>> the priority of constituencies.
> Correct. The problem is adding srcset to <source> because the attribute then it becomes <picture> specific (i.e., <video|audio><source srcset> is meaningless, and may be confusing because it works in one context (picture) but not others (video|audio)). I don't like that personally, unless we are going to make a case for responsive video and responsive audio :)
That already exists and that's called HLS, Smooth Streaming, HDS or 
MPEG-DASH.

Cyril
>   
>> (It may, however, factor into a browser vendor's decision to implement or
>> not. Did the author of the Chromium implementation find it harder to
>> re-use <source>?)
>>
>> -- 
>>
>>
>> Bruce Lawson
>> Open standards evangelist
>> Developer Relations Team
>> Opera
>>
>> http://dev.opera.com
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>


-- 
Cyril Concolato
Maître de Conférences/Associate Professor
Groupe Multimedia/Multimedia Group
Telecom ParisTech
46 rue Barrault
75 013 Paris, France
http://concolato.wp.mines-telecom.fr/
Received on Tuesday, 5 February 2013 05:46:23 GMT

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