Re: Magnified Caption Files

Hi Jim,

I just tested that Brightcove video on my Samsung Note 8, and I *was* able
to enlarge the captions on my device. FWIW.

JF

On Feb 8, 2018 4:23 PM, "Jim Allan" <jimallan@tsbvi.edu> wrote:

> comments inline
>
> On Thu, Feb 8, 2018 at 3:28 PM, John Foliot <john.foliot@deque.com> wrote:
>
>> Hi Jim & LVTF,
>>
>> Thanks for this - much appreciated.
>>
>> I was able to find a live instance of the Brightcove player with the
>> caption settings control (click on the CC button to expand the menu), and
>> was pleasantly surprised to see it supported magnification up to 400% -
>> woot woot!!
>>
> ​another plus for me is seeing ​
>
> ​an implementation (several) of UAAG 1.1.6 Use Configurable Text for
> Time-based Media Captions: and 1.1.7 Allow Resize and Reposition of
> Time-based Media Alternatives  (https://www.w3.org/TR/UAAG20/
> #gl-access-alternative-content)
>
>>
>> Q: while SC 1.4.4 excludes captions specifically, would 'magnified
>> captions' be covered by SC 1.4.10 Reflow, even if indirectly?
>>
>
> ​Hmm...  that's interesting.​ We did not call out or specifically remove
> captions, however browser zoom does not impact captions much.  they grow
> with with video when zoomed. In my testing with zoom and youtube the 400%
> captions created by the player were significantly larger than zooming the
> video.  different mechanisms and perhaps different user agents.  How ever,
> at least in youtube, if I change the setting to make captions 400% they
> wrap automagically! double WOOT!!
> I think in answer to your question... perhaps indirectly. different
> mechanism. the permutations are complicated. sticking with youtube...
> browser at 100%, video is roughly 25% of the screen. captions default to
> 100%. If I go to full screen video goes to 200%, and captions get a bit
> bigger - doesn't look 200%.- I didn't get out my ruler. I can still go into
> the player settings and change the captions to 200%. The already larger
> captions (because of full screen) will now double in size. I could go on...
> but too many variables. The bottom line is -  You don't lose content and
> you don't scroll horizontally - so it works like it should.
> I thought this would be a boon for mobile. alas no. there are no settings
> for captions other than on/off in the app or desktop view. One hopes soon.
> Today the desktop.... tomorrow the phone!
>
>>
>> @nigel, have you seen this?
>>
>>    - Press Release: https://www.3playmedia.com/2014/05/09/brightcove-
>>    responds-user-control-mandate-launching-customizable-closed-captions/
>>    <https://www.3playmedia.com/2014/05/09/brightcove-responds-user-control-mandate-launching-customizable-closed-captions/>
>>    - Live Example: https://www.3playmedia.com/solutions/features/
>>    integrations/brightcove-integration/
>>    <https://www.3playmedia.com/solutions/features/integrations/brightcove-integration/>
>>
>>
>> JF
>>
>> On Thu, Feb 8, 2018 at 2:49 PM, Jim Allan <jimallan@tsbvi.edu> wrote:
>>
>>> Hi John,
>>> We had a good discussion about this today on the LVTF call [1].
>>> The LVTF does not believe that author testing with screen magnification
>>> will have any benefit for users. Screen magnification software will
>>> pixelate captions as it does the video and pictures. We don't know of
>>> anything the author could do to the captions that would prevent the
>>> pixelation.
>>>
>>> It seems the issue has been taken over by laws and technological
>>> advancements because of CVAA and 2014 FCC rules mandating user control of
>>> caption adjustments [2]. As examples, see 3PlayMedia's discussion of user
>>> interface controls for caption adjustments [3] and YouTubes caption
>>> settings [4]. Users are able to adjust captions to a significant degree.
>>>
>>> 1. https://lists.w3.org/Archives/Public/public-low-vision-a1
>>> 1y-tf/2018Feb/0014.html
>>> 2. http://www.fcc.gov/document/closed-captioning-quality-rep
>>> ort-and-order-declaratory-ruling-fnprm
>>> 3. https://www.3playmedia.com/2014/05/09/brightcove-responds
>>> -user-control-mandate-launching-customizable-closed-captions/
>>> 4. https://support.google.com/youtube/answer/100078?co=GENIE
>>> .Platform%3DDesktop&hl=en
>>>
>>> Jim Allan, Chair Low Vision Task Force.
>>>
>>> On Wed, Feb 7, 2018 at 2:46 PM, John Foliot <john.foliot@deque.com>
>>> wrote:
>>>
>>>> (copying the WCAG Low Vision TF)
>>>>
>>>> All,
>>>>
>>>> As you are possibly aware, we are currently closing off some old
>>>> comments with the VTT Working Group (with spill-over to the TTML / IMSC
>>>> Working Group) around the ability to enlarge caption text to support Low
>>>> Vision users.
>>>>
>>>> Sylvia Pfeiffer responded with the following:
>>>>
>>>> If I understand correctly, you'd like me to add authoring guidance
>>>> around magnification and its potential impact.
>>>>
>>>> Could it be done with a single paragraph such as:
>>>> *"Authors of WebVTT caption and subtitle files are encouraged to test
>>>> the rendering of their files using Assistive Technology. Specifically, the
>>>> use of magnification tools by low-vision users may require editing their
>>>> files to allow for sufficient space within cue lines and cue line heights.
>>>> It is recommended to allow for a 200% magnification without clipping."*
>>>>
>>>> My personal opinion is that this is effectively what we seek (Ref: WCAG
>>>> SC 1.4.4 Resize Text), but before I respond more formally to the GitHub
>>>> issue (https://github.com/w3c/webvtt/issues/426) I'd welcome some
>>>> feedback.
>>>>
>>>> LVTF, does this sound right? LV members, have you encountered something
>>>> like this previously? (the ability to enlarge caption files independent of
>>>> the video?)
>>>>
>>>> APA - are we comfortable with Sylvia's proposal? Would something like
>>>> this also meet our needs with the TTML / IMSC group?
>>>>
>>>> Given that the VTT WG are keen on disposing with all comments, I'd like
>>>> to try and resolve this one fairly quickly.
>>>>
>>>> Thoughts?
>>>>
>>>> JF
>>>> --
>>>> John Foliot
>>>> Principal Accessibility Strategist
>>>> Deque Systems Inc.
>>>> john.foliot@deque.com
>>>>
>>>> Advancing the mission of digital accessibility and inclusion
>>>>
>>>
>>>
>>>
>>> --
>>> Jim Allan, Accessibility Coordinator
>>> Texas School for the Blind and Visually Impaired
>>> 1100 W. 45th St., Austin, Texas 78756
>>> <https://maps.google.com/?q=1100+W.+45th+St.,+Austin,+Texas+78756&entry=gmail&source=g>
>>> voice 512.206.9315 <(512)%20206-9315>    fax: 512.206.9452
>>> <(512)%20206-9452> http://www.tsbvi.edu/
>>> "We shape our tools and thereafter our tools shape us." McLuhan, 1964
>>>
>>
>>
>>
>> --
>> John Foliot
>> Principal Accessibility Strategist
>> Deque Systems Inc.
>> john.foliot@deque.com
>>
>> Advancing the mission of digital accessibility and inclusion
>>
>
>
>
> --
> Jim Allan, Accessibility Coordinator
> Texas School for the Blind and Visually Impaired
> 1100 W. 45th St., Austin, Texas 78756
> <https://maps.google.com/?q=1100+W.+45th+St.,+Austin,+Texas+78756&entry=gmail&source=g>
> voice 512.206.9315 <(512)%20206-9315>    fax: 512.206.9452
> <(512)%20206-9452> http://www.tsbvi.edu/
> "We shape our tools and thereafter our tools shape us." McLuhan, 1964
>