[foms] W3C activities on HTTP adaptive streaming - Inform and ask opinion.
silviapfeiffer1 at gmail.com
Thu Dec 2 06:05:43 PST 2010
A third means of solution has been discussed in the FOMS group during
recent months: namely the exposure of quality of service statistics to
anyone to implement their own adaptive streaming solution without
restriction to a proprietary solution or restriction to the algorithm
implemented in a browser for when to switch between streams. It will
allow further innovation and seems currently the preferred first step.
Also, you might have noticed initial notes at
http://wiki.whatwg.org/wiki/Adaptive_Streaming working towards
2010/12/3 Francois Daoust <fd at w3.org>:
> On 12/02/2010 11:07 AM, Raphaël Troncy wrote:
>>> are you saying that the W3C is considering starting a WG for adaptive
>>> HTTP streaming?
>> This has indeed been discussed during last TPAC (last month). I'm cc-ing
>> François Daoust, staff contact in W3C, that might lead this activity.
> "Starting a WG for adaptive HTTP streaming" is too positive a statement at
> this point. We make the same analysis as others, in other words: it is
> important for the success of video on the Web (through the <video> tag),
> there are different proprietary solutions out there, different
> standardization organizations that also work on the topic, but no
> royalty-free solution in sight.
> HTTP adaptive streaming can be addressed at the application level through
> the definition of a manifest file format, or at the network level through
> improvements to HTTP. W3C would welcome the work on a manifest file format
> and its associated processing model, provided there is enough support from
> its members involved in the field. People are, I think, looking for
> convergence towards a common open solution much more than for the creation
> of yet another standard, which is fine.
> This got discussed a bit at TPAC, and keeps coming up in discussions. We put
> our members in touch when they show interest in HTTP adaptive streaming. As
> of today, there is no concrete proposal within W3C to start standardization
> work, or public threads on the topic I could point you at.
> I encourage people to bring this topic to the upcoming Web and TV workshop
> in Berlin in February:
> (the topic is of particular relevance for TVs because of constraints such
> devices have in terms of the number of technologies they can integrate).
> This could also be discussed within the upcoming Web and TV Interest Group
> (for clarity, note an "Interest Group" cannot develop rec-track
> specifications), once created. Mailing-list is public-web-and-tv at w3.org,
> archived at:
>>> If that is the case, I would very much think that the
>>> discussion and conclusions that we have come up with here would be
>>> well placed as input into that WG. I believe Jeroen, who has very much
>>> taken the lead in pulling all the information together here, may even
>>> have some very good draft proposals as starting points.
> If something gets started, the possibility to use existing works as starting
> point would be extremely useful, indeed. Raphael had pointed me to the FOMS
> workshop where this got discussed.
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