On Thu, 26 Apr 2012 23:11:37 +0200, Ian Hickson <[email protected]> wrote:
On Thu, 26 Apr 2012, Paul Adenot wrote:The played member [1] 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.
We haven't implemented this yet, but I agree that must be played, since an empty range would violate the definition <http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#normalized-timeranges-object>.
-- Philip Jägenstedt Core Developer Opera Software
