[foms] W3C activities on HTTP adaptive streaming - Inform and ask opinion.

Silvia Pfeiffer silviapfeiffer1 at gmail.com
Fri Dec 10 17:46:42 PST 2010

I won't be able to make Berlin in February. I think having you there
(and anyone else who can make it) would be awesome though!

On Fri, Dec 10, 2010 at 8:10 PM, Jeroen Wijering
<jeroen at longtailvideo.com> wrote:
> Hey all,
> That sounds interesting; I'd love to go. Anybody else interested?
> - Jeroen
> On Dec 9, 2010, at 1:02 PM, Giuseppe Pascale wrote:
>> Silvia, all,
>> I would like to take the chance of this discussion thread to inform you
>> about the upcoming W3C "Web and TV" workshop in Berlin (8-9/2/2011)
>> http://www.w3.org/2010/11/web-and-tv/
>> I think this would be a good chance to discuss such a topic.
>> I would suggest that someone from this group presents the outcome of the
>> discussion so far.
>> If the topic will be considered by the PC of interest (as I expect) we
>> will then have a chance to discuss it with representative from many
>> different industries.
>> More information on the deadlines can be found on the Call for Papers
>> pointed above.
>> If you have more questions feel free to contact me.
>> Best regards,
>> Giuseppe
>> On Thu, 02 Dec 2010 15:05:43 +0100, Silvia Pfeiffer
>> <silviapfeiffer1 at gmail.com> wrote:
>>> Hi Francois,
>>> A third means of solution has been discussed in the FOMS group during
>>> recent months: namely the exposure of quality of service statistics to
>>> JavaScript through the video element by the browsers. This will allow
>>> 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
>>> solutions.
>>> Cheers,
>>> Silvia.
>>> 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:
>>>> http://www.w3.org/2010/11/web-and-tv/
>>>> (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:
>>>> http://lists.w3.org/Archives/Public/public-web-and-tv/
>>>>>> 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.
>>>>> +1!
>>>> 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.
>>>> Francois.
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>> --
>> Giuseppe Pascale
>> TV & Connected Devices
>> Opera Software - Sweden
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