[whatwg] Html 5 video element's poster attribute

Roger Hågensen rescator at emsai.net
Sun Sep 19 23:11:02 PDT 2010

  On 2010-09-20 05:09, Robert O'Callahan wrote:
> On Sun, Sep 19, 2010 at 10:57 PM, Shiv Kumar <skumar at exposureroom.com 
> <mailto:skumar at exposureroom.com>> wrote:
>     I'm glad to see that people do see the need to change (or specify
>     in more detail) the behavior of the poster at least insofar as it
>     disappearing before the video is played. As far as I know, every
>     major browser (IE 9 beta, Firefox, Safari, Chrome and Opera) do this.
> As Monty discovered, Firefox does not make the poster disappear until 
> the video is played. Feel free to file bugs against any browsers that 
> behave differently; just because the spec allows something doesn't 
> mean it's a good idea!
> Tightening up the spec to require the poster to remain until the video 
> is played does sound like a good idea.
> We do need a spec change to allow the poster to be shown when the 
> video has ended, if that is the most commonly desired behavior.
> Rob
> -- 
> "Now the Bereans were of more noble character than the Thessalonians, 
> for they received the message with great eagerness and examined the 
> Scriptures every day to see if what Paul said was true." [Acts 17:11]

The proper behavior should be that...
if there is a "start poster" then it must be displayed while any 
pre-loading takes place, if there is no pre-loading or auto-play then it 
must remain displayed until the user press play/pause/stop.
if there is a "start poster" then it must be removed if the user press 
play/pause/stop or pre-loading has progressed far enough for autoplay to 

I'd also like to add that...
If the user pauses the video during play then a "paused poster" must not 
be shown as the user most likely intends to study the paused frame of 
the video, if there is a "paused poster" then it must be toggleable 
between "paused poster" and frame by the user as they please, a small 
symbol or control may be shown during the paused frame to indicate there 
is a "paused poster" available.

And I'd also like to add that...
If there is a "end poster" then it must be displayed when the user stop 
the video, or if the last frame of the video is reached then the "end 
poster" but be shown.

Finally I'd like to add that...
There may be one or more posters, the start/pause/end posters may be the 
exact same poster or different posters.
The 3 different types of posters must be scriptable to allow rotation 
between multiple different posters.

Does this sound like something that would satisfy both developers and 
users, without annoying either?

Personally I do not see much point in a "paused poster" but I guess if 
it's scriptable it could act as a info card or maybe repeat the chapter 
title or something like that!

Does posters support hotzones at all? To allow clickable 
items/links/symbols (urls?). Just curious!

Roger "Rescator" Hågensen.
Freelancer - http://EmSai.net/

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