[Cloud Browser] minutes - 27 April 2016

available at:
  https://www.w3.org/2016/04/27-webtv-minutes.html

also as text below.

Kazuyuki

---
   [1]W3C

      [1] http://www.w3.org/

                               - DRAFT -

                             Cloud Browser

27 Apr 2016

   See also: [2]IRC log

      [2] http://www.w3.org/2016/04/27-webtv-irc

Attendees

   Present
          JF, Kaz, Alex, Harrison, John, So, Steve

   Regrets
   Chair
          Alexandra

   Scribe
          kaz

Contents

     * [3]Topics
         1. [4]Architecture
     * [5]Summary of Action Items
     * [6]Summary of Resolutions
     __________________________________________________________

   <scribe> scribe: kaz

   <scribe> scribenick: kaz

   alex: would look at the plan
   ... bullet points on my notes

   ->
   [7]https://lists.w3.org/Archives/Public/public-web-and-tv/2016A
   pr/0003.html Alex's note

      [7]
https://lists.w3.org/Archives/Public/public-web-and-tv/2016Apr/0003.html

Architecture

   alex: DOM tree within the cloud browser
   ... can mention that
   ... but should we add a chapter on that?

   jf: you have to expose the DOM tree to some of the users
   ... the problem is that if I can't see or can't hear
   ... I can't see the dancing picture, etc., on the screen
   ... in that case should use the accessibility APIs for DOM
   ... HTML5 guys also have similar problems with Canvas
   ... what to do with shadow DOM
   ... would provide this kind of feedback for the discussion

   alex: can you provide resources on Shadow DOM?

   <JF> [8]https://www.w3.org/TR/2015/WD-shadow-dom-20151215/

      [8] https://www.w3.org/TR/2015/WD-shadow-dom-20151215/

   jf: just pasted the link to Shadow DOM spec
   ... the other thing we have to think is we can't assume every
   user can use TV remote

   alex: we need to identify communication use cases
   ... apart of that, maybe questions from Harrison and Kaz
   ... we should add a section for DOM tree including shadow dom

   <JF> +1 to thinking about modalities - that is a high-level
   (related) accessibility issue as well

   kaz: this discussion made me think that we may want to think
   about user preferred modality for cloud browsers in addition to
   directly handle DOM tree on the local side

   alex: ok
   ... that was DOM tree discussion
   ... and what the functionality should be?
   ... what would be the best way for the group to handle this?

   ->
   [9]https://www.w3.org/2011/webtv/wiki/Main_Page/Cloud_Browser_T
   F/UseCases cloud browser use case wiki

      [9]
https://www.w3.org/2011/webtv/wiki/Main_Page/Cloud_Browser_TF/UseCases

   alex: we're discussing cloud browser architecture and
   functionalities
   ... some of the rendering result sent from the cloud browser to
   the local side
   ... this would be rather confusing because we're thinking about
   APIs
   ... what we have done is hard-coded things
   ... cloud browser for gaming and remote desk top
   ... this is the first approach
   ... and then would think about cable infrastructure, etc.
   ... some of them are kind of artificial, though
   ... what are the basic functions
   ... video rendering, scrambling, etc.
   ... basic set of functionalities

   alex: if we talk about cloud browser on every single cloud
   ... how to put the architecture chapter?
   ... would make things easier
   ... should we extend the document?

   harrison: your question sounds reasonable
   ... we can split out all our requirements
   ... one question is from our diagram we only two components
   ... we should have additional components
   ... to make things clearer

   ->
   [10]https://www.w3.org/2011/webtv/wiki/Main_Page/Cloud_Browser_
   TF#architecture architecture wiki

     [10]
https://www.w3.org/2011/webtv/wiki/Main_Page/Cloud_Browser_TF#architecture

   alex: shows updated diagrams

   harrison: cloud browser is the key player
   ... from this diagram, cloud browser does everything

   -> [11]https://www.w3.org/2011/webtv/wiki/File:Ss-cp.png SS CP

     [11] https://www.w3.org/2011/webtv/wiki/File:Ss-cp.png

   -> [12]https://www.w3.org/2011/webtv/wiki/File:Ds-lp.png DS LP

     [12] https://www.w3.org/2011/webtv/wiki/File:Ds-lp.png

   jf: wondering what the cloud browser client is
   ... less clear about the interaction
   ... how to click the link?

   alex: you can receive any kind of results

   jf: still not sure about local runtime environment

   kaz: maybe we should clarify the lifecycle of cloud browsing
   session

   jf: would be useful

   alex: please give me an action
   ... basic motivation of cloud browsing is that the client is
   not an actual browser

   kaz: maybe we could call "Cloud Browsing server" for the "cloud
   browser"
   ... and "Cloud Browsing client" for the "cloud browser client"
   ... what do you think?

   jf: your cloud browser server processes the rendering task

   alex: would distribute the diagrams to make things clearer
   ... got another comment from Paul Higgs
   ... got a comment offline
   ... wanted to ask the group for opinions

   jf: we can start with an elevator speech, i.e., brief
   description within a few minutes

   kaz: +1

   <JF> FWIW, I am a good target audience for the "elevator
   speech" audience

   kaz: will you update the diagrams on the wiki with these
   updated picture?

   <Zakim> JF, you wanted to say that dancing pixels is almost the
   least complicated issue

   <JF> +1 to that Kaz, as it helps make the elvator speech
   clearer

   kaz: we can keep the original name "cloud browser" but would be
   better to add an alias like:
   ... cloud browser (cloud browsing server)
   ... local player (cloud browsing client)

   <alexandra_mikityuk> what if "Cloud Browser Server"?

   <JF> the key word is "server"

   alex: another two months for use case discussion
   ... and would add clearer definition too

   harrison: one question
   ... capturing video encoding functionality
   ... visual output downloaded to the set top box
   ... capturing the video data
   ... video encoding procedure
   ... my question is if the cloud browser is in charge of the
   interaction?

   kaz: would suggest we clarify the interaction during the
   session lifecycle
   ... maybe we can generate a ladder diagram

   harrison: will do
   ... another question is graphics library for composition
   ... how/who handles that capability?

   kaz: video streaming is generated on the cloud browsing server
   side
   ... and 2-D graphics generation (could be hardware accelerated)
   is done by the local player side

   alex: will put proposals on the wiki
   ... lifecycle, etc., as well

   kaz: great

   harrison: would be great to send by email as well

   alex: also would assign an action item
   ... to our action tracker
   ... tx for your cooperation
   ... great discussion

   [ adjourned ]

Summary of Action Items

Summary of Resolutions

   [End of minutes]
     __________________________________________________________


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-- 
Kaz Ashimura, W3C Staff Contact for Auto, WoT, TV, MMI and Geo
Tel: +81 3 3516 2504