RE: IG charter: status and schedule

Dear all,

I would like to add HTTP adaptive streaming standardization in particular that is core to VOD service on open internet.
As W3C had video tag in HTML-5, video application friendly TV makers are very excited to see what's next standardized at W3C.
XML Schema standardization for HTTP adaptive streaming is good candidate for this.

For example, inside video tag adaptive streaming manifest src attribute can be added like below. Browser may select conventional streaming or adaptive streaming with the attribute information. We need to standardize the contents of movie.manifest. This is very preliminary design discussed so far among small group.

<video>
    <source src="movie.webm" type='video/webm; codecs="vp8, vorbis"' />
    <source src="movie.mp4" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"' />
    <adaptive src="movie.manifest" />
    Video tag not supported. Download the video <a href="movie.webm">here</a>
<video>

We could add a few major use cases besides this, too.

Best regards,
HJ

-----Original Message-----
From: FUNAHASHI Yosuke [mailto:yfuna@tomo-digi.co.jp] 
Sent: Monday, October 04, 2010 11:35 AM
To: Giuseppe Pascale
Cc: public-web-and-tv@w3.org; 이현재; Tatsuya Igarashi; Kazuyuki Ashimura; Charles McCathieNevile
Subject: Re: IG charter: status and schedule

Hi Giuseppe,

> So while I understand the request of not being too vague I would  
> also try to avoid to be too specific so limiting what is the real  
> goal of this IG (in my opinion of course).
> To achieve this what can be done is to provide some examples in the  
> charter of possible usecases that at time of writing seems to be the  
> major ones, without restricting the IG work to those only.

I think this is a good idea.

How about explicitly noting the workshop's summary and minutes as the  
source of example use cases?
I suppose wording and selecting the examples for the charter from  
scratch may bring us another time-consuming discussion.

[1] http://www.w3.org/2010/09/web-on-tv/summary.html
[2] http://www.w3.org/2010/09/web-on-tv/minutes.html

What do you think?

Regards,
Yosuke


On 2010/10/01, at 19:40, Giuseppe Pascale wrote:

> Hi all,
> just a small comment to this thread:
> In many areas what we will try to achieve is to define API,  
> interfaces, recommendation etc that abstract from the particular  
> delivery technology used, by the business model behind a particular  
> market/region etc.
>
> So while I understand the request of not being too vague I would  
> also try to avoid to be too specific so limiting what is the real  
> goal of this IG (in my opinion of course).
> To achieve this what can be done is to provide some examples in the  
> charter of possible usecases that at time of writing seems to be the  
> major ones, without restricting the IG work to those only.
>
> Giuseppe
>
> On Fri, 01 Oct 2010 07:31:23 +0200, Igarashi, Tatsuya <Tatsuya.Igarashi@jp.sony.com 
> > wrote:
>
>> Hi HJ,
>>
>> I agree with you. Using ambiguous generic terms tends to lead  
>> confusion in such cross-industrial and multi-cultural activities.
>>
>> I used to believe that "TV services" means terrestrial broadcasting  
>> services.
>> Nowadays, IPTV operators are promoting their services using "TV  
>> services " as the generic term.
>>
>> It is nice to describe major use cases as examples in the chapter,  
>> however, if the scope is clear, IG will discuss them. Also,  
>> potential participants could be referred to the Tokyo Workshop  
>> outcome.
>>
>> -***---***---***---***---***---***---***---***---***--***---***--- 
>> ***-
>> Tatsuya Igarashi (Tatsuya.Igarashi@jp.sony.com)
>> NS Development Dept. Technology Development Group
>> Sony Corporation
>> (Voice) +81-3-5435-3252 (Fax) +81-3-5435-3274
>>
>>
>>> -----Original Message-----
>>> From: public-web-and-tv-request@w3.org
>>> [mailto:public-web-and-tv-request@w3.org] On Behalf Of ???
>>> Sent: Friday, October 01, 2010 9:56 AM
>>> To: 'FUNAHASHI Yosuke'
>>> Cc: 'Kazuyuki Ashimura'; 'Charles McCathieNevile';
>>> public-web-and-tv@w3.org
>>> Subject: RE: IG charter: status and schedule
>>>
>>> Dear all,
>>>
>>> For the scoping, we need to dive a little bit deeper than current  
>>> general
>>> term, in that I agree with Igarashi-san adding a few definitions  
>>> and major
>>> usecases. This will definitely help potential participant  
>>> understand W3C
>>> web and tv work scope. sometimes general term may lower industry  
>>> interest
>>> and be in danger of being neglected. We could open additional scope
>>> possibilities while working though.
>>>
>>> Best regards,
>>> HJ
>>>
>>> -----Original Message-----
>>> From:
>>> Sent: 없음
>>> To: FUNAHASHI Yosuke; 이현재
>>> Cc: 'Kazuyuki Ashimura'; 'Charles McCathieNevile';
>>> public-web-and-tv@w3.org
>>> Subject: RE: IG charter: status and schedule
>>>
>>> Dear Funahashi-san and HyeonJae,
>>>
>>> We share the view that video service over IP network is in-scope  
>>> of this
>>> IG, since participants of the workshop were interested in it. In  
>>> terms of
>>> the priority issue, it is exactly what IG should discuss.
>>>
>>> If no objection, I suggest just to describe the meaning of "TV  
>>> services".
>>> For example,
>>>
>>> TV services means audio-visual contents delivery services via IP  
>>> network
>>> and out-of-band channel such as terrestrial/satellite/CABLE  
>>> broadcasting.
>>>
>>> Best regards,
>>>
>>> -***---***---***---***---***---***---***---***---***--***---***--- 
>>> ***-
>>> Tatsuya Igarashi (Tatsuya.Igarashi@jp.sony.com)
>>> NS Development Dept. Technology Development Group
>>> Sony Corporation
>>> (Voice) +81-3-5435-3252 (Fax) +81-3-5435-3274
>>>
>>>
>>>
>>>
>>> > -----Original Message-----
>>> > From: public-web-and-tv-request@w3.org
>>> > [mailto:public-web-and-tv-request@w3.org] On Behalf Of FUNAHASHI  
>>> Yosuke
>>> > Sent: Thursday, September 30, 2010 1:53 PM
>>> > To: 이현재
>>> > Cc: 'Kazuyuki Ashimura'; 'Charles McCathieNevile';
>>> > public-web-and-tv@w3.org
>>> > Subject: Re: IG charter: status and schedule
>>> >
>>> > Hi HyeonJae,
>>> >
>>> > Thank you for your comment.
>>> >
>>> > I think IPTV telcos are interested in this activity.  The  
>>> reasons are
>>> > 1) Open IPTV Forum, IPTV Forum Japan, Ericsson and NTT actively
>>> > participated in the workshop, 2) one of the candidate chairs  
>>> Kawamori-
>>> > san belongs to NTT.
>>> >
>>> > Above all, I would not like to exclude intentionally any  
>>> individual
>>> > service from our scope before the IG started or before our
>>> > comprehensive examination about existing services.  This is a  
>>> reason
>>> > why I expressed my preference to keep the meaning of "the TV  
>>> services"
>>> > and "Web and TV" somewhat abstract level in the reply to Igarashi-
>>> > san.  I know this abstractness has some risk in attracting
>>> > "appropriate" organization in related domain.  But what is
>>> > "appropriate" is also a vague notion for us now.
>>> >
>>> > Regards,
>>> > Yosuke
>>> >
>>> >
>>> > On 2010/09/30, at 12:08, 이현재 wrote:
>>> >
>>> > > Welcome Igarashi san,
>>> > > We could share TV makers voice with other industries.
>>> > >
>>> > > WebonTV Discussion at Tokyo has discussed wide range of  
>>> spectrum as
>>> > > you
>>> > > listed.
>>> > > I suggest IPTV service should be later discussed at W3C  
>>> because IPTV
>>> > > telco
>>> > > is not as much interested in W3C as WebonTV participants.
>>> > > "Video services via IP network" could be defined narrow and  
>>> precise
>>> > > term as
>>> > > online video distribution from contents providers such as  
>>> Netflix,
>>> > > Amazon,
>>> > > Hulu and Broadcasters such as NHK, BBC, KBS, ZDF and possible  
>>> 3rd
>>> > > party
>>> > > small individual/independent content providers via open  
>>> unmanaged
>>> > > internet
>>> > > to TV devices and TV-like devices like STB, Blu-Ray, etc.
>>> > > By definition it could include managed IPTV too, however, as I
>>> > > mentioned
>>> > > earlier 1st priority at W3C will be open unmanaged internet.
>>> > >
>>> > > Best regards,
>>> > > HJ
>>> > >
>>> > > -----Original Message-----
>>> > > From:
>>> > > Sent: 없음
>>> > > To: Kazuyuki Ashimura; FUNAHASHI Yosuke; Charles McCathieNevile
>>> > > Cc: public-web-and-tv@w3.org
>>> > > Subject: RE: IG charter: status and schedule
>>> > >
>>> > > Dear folks,
>>> > >
>>> > > Thank you for drafting the IG charter.
>>> > >
>>> > > I think that we should clarify what "TV services" means in  
>>> order to
>>> > > avoid
>>> > > leading confusions.
>>> > > I think that teleco's IPTV services and on-line services over  
>>> the
>>> > > Internet
>>> > > are in scope of the IG. If "TV services" means just video  
>>> contents
>>> > > delivery
>>> > > via terrestrial/satellite/CABLE broadcast, i.e. out-of-band of  
>>> IP, we
>>> > > should also describe "video services via IP network" as well  
>>> as "TV
>>> > > service".
>>> > >
>>> > > Any comment?
>>> > >
>>> > >
>>> >
>>> -***---***---***---***---***---***---***---***---***--***---***--- 
>>> ***-
>>> > > Tatsuya Igarashi (Tatsuya.Igarashi@jp.sony.com)
>>> > > NS Development Dept. Technology Development Group
>>> > > Sony Corporation
>>> > > (Voice) +81-3-5435-3252 (Fax) +81-3-5435-3274
>>> > >
>>> > >
>>> > >
>>> > >
>>> > >
>>> > >
>>> > >
>>> > >
>>> > >> -----Original Message-----
>>> > >> From: public-web-and-tv-request@w3.org
>>> > >> [mailto:public-web-and-tv-request@w3.org] On Behalf Of Kazuyuki
>>> > >> Ashimura
>>> > >> Sent: Thursday, September 30, 2010 2:55 AM
>>> > >> To: FUNAHASHI Yosuke
>>> > >> Cc: Charles McCathieNevile; public-web-and-tv@w3.org
>>> > >> Subject: Re: IG charter: status and schedule
>>> > >>
>>> > >> Hi Yosuke,
>>> > >>
>>> > >> I think it's my bad it took 12 hours to install Charles'  
>>> updated
>>> > >> draft...  Please refer to the updated draft charter [1] for  
>>> your
>>> > >> detailed review.
>>> > >>
>>> > >> [1] http://www.w3.org/2010/09/webTVIGcharter.html
>>> > >>
>>> > >> Thanks,
>>> > >>
>>> > >> Kazuyuki
>>> > >>
>>> > >>
>>> > >> On 09/30/2010 02:44 AM, FUNAHASHI Yosuke wrote:
>>> > >>> Hi Charles,
>>> > >>>
>>> > >>>> I suppose we need a little rule or discipline regarding the
>>> > >>>> discussions on the IG in order for participants to carry  
>>> their
>>> > >>>> attention to the ongoing process cooperatively. I think we  
>>> should
>>> > >>>> explicitly show them the rule before they participate. I do  
>>> not
>>> > >>>> know
>>> > >>>> whether the charter is appropriate or not as the place  
>>> where we
>>> > >>>> write
>>> > >>>> down such matters.
>>> > >>>>
>>> > >>>> What do you think?
>>> > >>>
>>> > >>>
>>> > >>> Oh. You already included a comment about this topic in your  
>>> updated
>>> > >>> charter.
>>> > >>> I appreciate your thoughtful update.
>>> > >>>
>>> > >>>
>>> > >>> Regards,
>>> > >>> Yosuke
>>> > >>>
>>> > >>>
>>> > >>
>>> > >> --
>>> > >> Kazuyuki Ashimura / W3C Multimodal & Voice Activity Lead
>>> > >> mailto: ashimura@w3.org
>>> > >> voice: +81.466.49.1170 / fax: +81.466.49.1171
>>> > >>
>>> > >
>>> > >
>>> > >
>>> > >
>>> >
>>> >
>>>
>>>
>>>
>>
>
>
> -- 
> Giuseppe Pascale
> Linux Devices SDK
> Opera Software - Sweden
>

Received on Monday, 4 October 2010 05:10:31 UTC