HTML-A11Y telecon

05 Jan 2011

See also: IRC log


John_Foliot, Janina, +44.154.558.aaaa, Eric_Carlson, Kenny_Johar, Judy, Sean_Hayes, Jim_Allan


<janina> agenda: this

Identify Scribe

scribe, JF

<janina> scribe: John_Foliot

re action item 88 - Janina to take back to PF

Actions Review http://www.w3.org/WAI/PF/HTML/track/actions/open

Action Items reviewed

<trackbot> Sorry, couldn't find user - Items



- Allow UA to reload fallback content if it fails to load. (RESOLVED

NEEDSINFO) - Gez Lemon

Decision: close bug #8657 with no further input

Eric: the current spec states that videos cannot start to play until captions are fully downloaded.

Sean is re-reading the spec. It now states that videos can play even if transcripts/captions are incomplete, as the text file is still in the ready state.

this seems to be wrong to most on the call

Janina: if the user has asked for a specific track, and it does not download, then the video should not play

Sean: suggest that we look to ensure that what Eric thought was the case (it won't play) is in fact what is in the spec
... will investigate and follow up with group next week

http://www.w3.org/Bugs/Public/show_bug.cgi?id=8673 - Restriction on command element as part of a menu. (RESOLVED NEEDSINFO) - Gez Lemon

http://www.w3.org/Bugs/Public/show_bug.cgi?id=9673 - Remove any reference to a specific Time Stamp format for video captioning from the specification at this time. (RESOLVED WORKSFORME) - John Foliot

Judy: there were a few different stages required top ensure this was done. We had it addressed for the heart-beat publication, and then the working draft that was in progress

Janina: has it krept back in

Sean: there is another bug related to this as well
... the draft spec still has some residual indications of WebSRT

<scribe> ACTION: JF to follow up on bug #9673 [recorded in http://www.w3.org/2011/01/05-html-a11y-minutes.html#action01]

<trackbot> Created ACTION-97 - Follow up on bug #9673 [on John Foliot - due 2011-01-12].


- There is not a clear difference between "subtitles" and "captions".

These are mostly used to describe "closed captions" (binary transmissions in TV broadcasts) vs "subtitles" (text files), as far as I know. (RESOLVED

WORKSFORME) - contributor@whatwg.org

Janina: we need to ensure we can have both kinds of text tracks

Judy: +1

Bug 9773 should refer to bug 11593 for more details

http://www.w3.org/Bugs/Public/show_bug.cgi?id=9774 - "consecutive lines displayed below each other" - since subtitles tend to be rendered at the bottom, it's actually better for new subtitles to be rendered higher up. Of course, the individual lines of each subtitle still extend downwards, but it's still possibly better to say "after each other". (VERIFIED INVALID) - contributor@whatwg.org

Janina: suggest we ask Geoff to look at this for more feedback

Sean: will investigate this further and report back next week

http://www.w3.org/Bugs/Public/show_bug.cgi?id=9775 - "positioned to a multiple of the line dimensions of the first line of the cue" - enforcing the same line height for every line ihurts text rendering appearance for no apparent reason. This is especially true if text styling is supported (bold text is large)" (RESOLVED NEEDSINFO) - contributor@whatwg.org

Seems the issue is that the start of the caption region is defined using line-height as the unit of measure

this may have accessibility implications as it might actually push the caption outside of the video region

Sean: there are 2 ways of establishing the position, if you set the fag to snap-to-lines then this may be an issue

if the flag is set to false, then the number is treated as a percentage

so it is a snap-to-grid mechanism

Sean: this has been set into the text-track 'cue'

some of these flags are likely too specific for the HTML5 spec, and Sean suggests taht this should be move to the text track format spec

http://www.w3.org/Bugs/Public/show_bug.cgi?id=10693 - Need a means for navigating between related timed tracks of media elements (RESOLVED NEEDSINFO) - Silvia Pfeiffer

Will ask Silvia to follow up with this.

http://www.w3.org/Bugs/Public/show_bug.cgi?id=10839 - Providing visible indication that descriptions and captions are available. (RESOLVED WORKSFORME) - John Foliot

This is covered by UAAG, and will likely also be visited by the new WG emerging at W3C

<JAllan> ack

<kenny_j> I need to drop off the call now. Talk to you all next week.

Consensus to close this bug

http://www.w3.org/Bugs/Public/show_bug.cgi?id=10840 - Allow the user to independently adjust the volumes of the audio description and original soundtracks. (RESOLVED NEEDSINFO) - John Foliot

same answer as 10839

http://www.w3.org/Bugs/Public/show_bug.cgi?id=10841 - We require a method to allow the user to control playback timing in order to have more time to understand the material. (RESOLVED NEEDSINFO) - John Foliot

Some of this falls into UAAG area

This seems to be an open issue within our group - leave open/as is

http://www.w3.org/Bugs/Public/show_bug.cgi?id=10842 - Support the isolation of speech from other background sounds in AV media (RESOLVED NEEDSINFO) - John Foliot

Sean: this is partially a labeling issue, and a production issue

labeling issue is covered by bug #11593

Sean: what are the different package types inside the audio file, how do we separate them apart and expose them to the user

<janina> http://www.w3.org/mid/4D09263F.6060101@w3.org

Sean: once we have the ability to identify and "mark up" supporting media resources, we need to ensure that Clear audio is one of the types


- Support user control over the visual presentation of caption text.


first need to determine what aspects of rendering must be under the control of the user, then ensure that they can be modified by user applied style-sheets

we need to continue with this, in concert with UAAG

we need to continue this issue further, plus remaining bugs

next week

Janina: meeting ajourned

Summary of Action Items

[NEW] ACTION: JF to follow up on bug #9673 [recorded in http://www.w3.org/2011/01/05-html-a11y-minutes.html#action01]
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Default Present: John_Foliot, Janina, +44.154.558.aaaa, Eric_Carlson, Kenny_Johar, Judy, Sean_Hayes, Jim_Allan
Present: John_Foliot Janina +44.154.558.aaaa Eric_Carlson Kenny_Johar Judy Sean_Hayes Jim_Allan

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Regrets: Geoff
Got date from IRC log name: 05 Jan 2011
Guessing minutes URL: http://www.w3.org/2011/01/05-html-a11y-minutes.html
People with action items: jf

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