[Ogg a11y] Review of TDHT

[Chris Double]

On Thu, Jan 8, 2009 at 2:31 AM, Silvia Pfeiffer
<silviapfeiffer1 at gmail.com> wrote:
> On Thu, Jan 8, 2009 at 12:14 AM, Chris Double <chris.double at double.co.nz> wrote:
>> Can you show an example tdht file that has this effect?
>
> Basically just throw the javascript that Michael uses and the CMML
> file that he uses together and you get it. Then you just need to
> register time-based callbacks with the video element to start the
> scrolling.

I don't think this is possible the way tdht is specified, which is why
I asked if you could throw together an example - even if it uses
pseudo-code for the javascript so I can see how you are expecting it
to work.

For one, how does the tdht get access to the video's currentTime to
decide what to display?

I'm obviously misunderstanding the spec which is why an example would
be great. This is important since the intent of the format is to allow
the sorts of things that MetaVid are doing, it would be good to do
some examples to ensure that it will in fact allow this.

>
> The display/hidden idea is where Henri and I differ. I talk about
> active and inactive, where the effect of what active and inactive mean
> is provided by the css. In the metavid case, active would be to have
> the focus and the coloured background, and inactive not to have these.

How is the active/inactive done using CSS? Do you mean there will be
some CSS psuedo class that defines 'active time div' or something? So
this requires an addition to CSS?

>
>> Is there some mechanism
>> for the tdht to identify if they should be displayed/scrolled
>> regardless?
>
> Regardless of what?

Regardless of the current time of the video. You answered this by
clarifying it's a difference in what you and Henri are proposing.

Chris.
-- 
http://www.bluishcoder.co.nz