See also: IRC log
<AllanJ> Title: UAWG telecon
<scribe> Scribe: Jan
KF: Prefers 2pm ET
JA, JR: Agree
<scribe> ACTION: JA to Move start time to 2pm ET [recorded in http://www.w3.org/2008/02/21-ua-minutes.html#action01]
<scribe> ACTION: JR to Make sure call goes to 3:30pm [recorded in http://www.w3.org/2008/02/21-ua-minutes.html#action02]
PLH: Architecture domain
... Several formats, internationalization...
... There was a video conference I chaired...
... Published report 2 days ago
JA: I know accessibility came up a bit...do you have any issues to bring up?
PLH: Discussed variety of
... We had a presentation on Sign language and video
PLH: Other accessibility position
papers pointed back to WAI guidelines
... When look at video on Web not much has accessible content
... Improving - Flash getting supports for captionning
JA: WGBH has buiolt an accessible
... Many flash players can't be used from keyboardf
<plh> sorry, my phone decided to reboot :(
JA: So as User Agent WG we have
some guidelines related to video,...
... Change speed, synchonization, show captions
... WGBH created player...now would be nice if Adobe picked it up
PLH: Yes...should say there are 3
WG working on video...
... SMIL WG, video WG, HTML WG
... Right now waving their hands and leaving it to UA to support
... ex. here is video if there is captions, UA must deal with that
JA: Right in HTML plugins
PLH: Direct support in HTML - Audio and Video tag
JA: Opera has a Beta
PLH: Also Firefox has beta
... Suggest pay attention to what those tools are doing
... UAAG should tell the developers what to do when they find captions...
JA: We have existing guidelkines
around stop, start pause, navigate incrmentally, captionning
... Need fairly robust API from HTML
PLH: It is fairly robust...but
what else do we need to do
... eg colors
JB: Don't we need go user control of this...eg for display of captions
JA: Would be a native support
issue...embedded players in past have been a problem...in
esternal player there is more control
... Backing up...currently in SMIL, SAMI the captions are in a seprate window
... So no contrast issue?
PLH: SMIL is just one big window
JA: In some other players Real etc. I've seen them in a different window
JB: KF how some SAMI work on this?
KF: Not sure of the top of my head
JA: SAMI ones have been the way I describe it
PLH: SMIL doesn't have concept of
... Has concept of text
... SMIL3 is introducing a text format
JR: We assume that captions are identified
<scribe> ACTION: JA to look into whether SMIL identifies captions explicitly [recorded in http://www.w3.org/2008/02/21-ua-minutes.html#action03]
JA: Didn't mean Windows, meant different area
PLH: Should Caption handling
appear at API level
... Or at the User Agent level
PLH: 2 levels
... What can script conteol and what can user agent
... eg. So script can't change prefs at the moment
JA: Prefer UA do it, since script leaves to many ways to do things
PLH: So which way?
PLH: Do we want author to say must show French captions
JB: But doesn't author set preferences
PLH: Author has to provide the various tracks
KF: Author should be able to set deafult, but user can overridie
PLH: So in caption tech they have
language *en, fr, sp etc.)...
... Not enough..what about video description...
... And use cases eg eng captions, fr video descripotions
JA: Reading about audio
... Sometimes people put text version of audio descriptions
JR: Seems like we need ARIA roles etc
JA: Meta info?
PLH: Also SMIL could set out these roles
JA: OK let's see if we can pull
... So in user agent, we want to control features and functionalities of video, play stop start
... Also incremental nav
JR: Also structured navigation
PLH: Do you want authors to have control
<AllanJ> API=author provides options
<AllanJ> UA=user chooses from available options
JR: Example of mode in which user can pause video until they dismiss each caption
PLH: Full screen is example
... Don't want author to set full screen option
... French captions would be another example
JA: It's an "author proposes,
user disposes" example
... Author could propose Full Screen, but UA could allow User to override that
<plh> (that's the current API for video and audio elements)
JA: So now we have to come up wih
list of additional UA controls needed
... So API built into user agent?
JA: Other things...captions
... Selection of available text tracks, video tracks
... Then re: video description 1. embedded in audio track or 2. in own audio track
<plh> [audio track with director's commentary is an other use case for this btw]
<scribe> ACTION: JR to When review audio/video guidelines we need to put in track selection, text configuration of captions [recorded in http://www.w3.org/2008/02/21-ua-minutes.html#action04]
JA: SO how does author communicate avialability
PLH: So now these are delivered
... Up to UA decide which to display
... Can improve state of metadata with each
JA: Also issue of sizing...
... ex. looking at streaming...
... If we allow captions to be larger...will that expand viewer?
... Causing reflow?
... ANd embedded things hard to resiza
PLH: No technical problem with
reflowing like that
... Could also magnify page
... If I don't want caption on page but want beside it becomes a bigger issue
JA: Haven't seen a 2 box
... Current UA's don't resize viewers
PLH: This will now be allowed
<scribe> ACTION: JR to Add something on resizing embedded viewers [recorded in http://www.w3.org/2008/02/21-ua-minutes.html#action05]
JA: Codec issues seem outside user agent?
PLH: Prob for ua but not in accessibility
JR: Blue sky...what about changing contrast of playing video etc
PLH: Can see use case
JA: Also interactive video -
changable, clickable video
... Video like image map?
PLH: Spatial Addressing, temporal
... Some existing solutions for this
... We are trying to develop a common solution
... Spatial addressing...like an image map...we haven't thought much about UI
JR: It's coming
... Mentionned sign language for Web...
JA: We need to alert user to it being there and allow user to activate
KF: User agent could keep track of things
JA: Also need searching
... Gallaudet...Hamlet had scene descs etc on basis of captionning
... Searching of text tracks
PLH: Video object recognition is
... Technology is improving
... Reuter's has a tool that let's you search for a person's name and then it finds it in videos
... See this as auto-generation of metadata
... Metadata by hand is hard
JA: Added benfit if video is native
PLH: Don't expect face recog just
yet in UA's
... Metadata issue is still a problem
... WGBH generates metadata but it is removed along the stream
... Even across codec changes
JB: May make sense to use this as first discussion and work though it with current draft then have Phillipe back
KF: We need to get a foundation going
JB: Maybe we should invite others
- Geoff Freed
... Maybe a few others
KF: Would like to talk to some internal microsfoft people
<scribe> ACTION: KF to Gather some more Microsoft insight on video issue [recorded in http://www.w3.org/2008/02/21-ua-minutes.html#action06]
PLH: can also apply to images
JA: Video codec problem is immense
PLH: Video adoption will be slow until codec issue is sorted
JA: Thanks Phillipe
<plh> zaki, drop plh
This is scribe.perl Revision: 1.133 of Date: 2008/01/18 18:48:51 Check for newer version at http://dev.w3.org/cvsweb/~checkout~/2002/scribe/ Guessing input format: RRSAgent_Text_Format (score 1.00) Succeeded: s/PH:/PLH:/g Found Scribe: Jan Inferring ScribeNick: Jan Default Present: Jan, KFord, Judy, Plh, JimAllan, Plh.a Present: Jan KFord Judy Plh JimAllan Plh.a WARNING: No meeting title found! You should specify the meeting title like this: <dbooth> Meeting: Weekly Baking Club Meeting Agenda: http://lists.w3.org/Archives/Public/w3c-wai-ua/2008JanMar/0042.html Got date from IRC log name: 21 Feb 2008 Guessing minutes URL: http://www.w3.org/2008/02/21-ua-minutes.html People with action items: ja jr kf WARNING: Input appears to use implicit continuation lines. You may need the "-implicitContinuations" option.[End of scribe.perl diagnostic output]