Re: Accessibility question

On Wed, Apr 3, 2013 at 4:38 AM, Alastair Campbell <alastc@gmail.com> wrote:

> To answer my own question, Steve Faulkner pointed me to a couple of
> current threads on this topic elsewhere:
> http://lists.w3.org/Archives/Public/public-html-media/2013Apr/0007.html
> http://lists.w3.org/Archives/Public/public-html/2013Mar/thread.html#msg156
>
> However, those discussions headed off list or off topic, there still seems
> to be an open question about timed text:
>
> If the captions are open (e.g. via track element) will they be able to
> match timing with the encrypted video/audio?
>

I certainly think synchronization should be maintained. I filed
https://www.w3.org/Bugs/Public/show_bug.cgi?id=21569 to address this and
other aspects of Media Element behaviour which "may change" or "shall not
change" when encrypted media is used.

...Mark


>
> -Alastair
>
>
> On Tue, Apr 2, 2013 at 5:31 PM, Alastair Campbell <alastc@gmail.com>wrote:
>
>> Hi,
>>
>> I have a question that I couldn't work out from the EME spec,
>> hopefully this is the right place to ask:
>>
>> Will content providers be able to include captions and audio
>> description with encrypted media?
>>
>> A requirement for that would be that browsers are able to provide a
>> mechanism for showing captions, and switching audio to include an
>> audio description.
>>
>> Being able to add captions / audio desc are a basic requirement for
>> accessibility [1], and I believe that companies such as Netflix will
>> be including captions with their content [2]. I assume that would
>> require the time code of the video to be available to the browser, is
>> that the case for encrypted media?
>>
>> Perhaps the technical way of asking is: Does EME restrict the
>> information available through HTML5 embedded media? [3]
>>
>> Apologies, that might be a big question, at this stage I'm most
>> interested in whether EME would restrict access in a way that impacts
>> accessibility by principle.
>>
>> Kind regards,
>>
>> -Alastair
>>
>> 1] http://www.w3.org/TR/WCAG/#media-equiv
>> 2] http://gigaom.com/2012/10/11/netflix-captions-lawsuit-settlement/
>> 3]
>> http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#media-element
>>
>
>