(unknown charset) Re: CP, ISSUE-30: Link longdesc to role of img [Was: hypothetical question on longdesc]

Silvia Pfeiffer, Thu, 22 Mar 2012 10:09:48 +1100:
> Therefore, since we agree that what matters is
> the UI and how it functions in the UI, there is no distinction between
> a paused frame and the poster.

On this, I agree with you and Janina.

> Therefore, from a logical and UI point of view, the jpg is 
> indeed part of the video and its genesis does not matter.

Right. But what implications do we draw from this? 

For example: It was agreed, I think, between David and Sean that the 
poster does not need to be taken from the video *file*. But even so: 
What if I find a nice picture that I *do* include in the video file, as 
its first frame, because some UA that I care about do not support the 
@poster attribute?

Thus: I think it doesn't matter that it is part of the video. What 
matters is that it - the frame or the more or less accidental image 
file - has been chosen as poster. A poster is, in principle, not a 
presentational image - the assumption is that the poster tries to tell 
us why we should take the time to play the video.
-- 
Leif H Silli