[whatwg] [media] played member expected behavior.
ian at hixie.ch
Wed Jun 13 14:40:22 PDT 2012
On Thu, 26 Apr 2012, Ian Hickson wrote:
> On Thu, 26 Apr 2012, Paul Adenot wrote:
> > The played member  description of the media element states :
> > > The played attribute must return a new static normalized TimeRanges
> > > object that represents the ranges of the media resource, if any,
> > > that the user agent has so far rendered, at the time the attribute
> > > is evaluated.
> > Currently implementing this member in Gecko, we are wondering the
> > exact meaning of the 'rendered' term. If one seek in a video to a
> > location while being in a paused state, the user agent 'renders' the
> > frame at that location, since it is displayed on the screen. No audio
> > (if any) is rendered, though.
> > In that case, should we create an empty range starting and ending at
> > the time that was seeked to ? That means creating multiple empty
> > ranges if multiple seeks occur while being paused. Does the
> > 'rendering' term implies that playback should occur ? This description
> > need clarification to specify the exact behavior to adopt.
> > Semantically, the name of the member itself ('played') seem to imply
> > playback.
> I think playback probably is the most useful. The use case here was
> updating a playback scrub bar with colour for where the user has already
> watched the video, and zero-length entries aren't useful for that.
> I've made a note of this e-mail to fix the spec, but in the absence of
> further information or opinions from anyone else, I'd go with playback
> as you suggest.
This is now fixed.
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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