[whatwg] Remove addCueRange/removeCueRanges
Ian Hickson
ian at hixie.ch
Thu Aug 27 17:24:53 PDT 2009
On Mon, 17 Aug 2009, Max Romantschuk wrote:
> Silvia Pfeiffer wrote:
> > Precision is influenced more strongly by the temporal resolution of
> > the decoding pipeline rather than the polling resolution for
> > currentTime. I doubt the previous implementations of "start" and "end"
> > gave you a 3 sample accurate resolution even for wav files.
>
> I'll chime in here, having done extensive work with audio and video
> codecs. With current codec implementations getting sample- or
> frame-accurate resolution is largely a pipe dream. (Outside of the realm
> of platforms dedicated to content production and playback.) Especially
> for video there can be several seconds between keyframes, frame-accurate
> jumps requiring complex buffering tricks.
>
> A reasonable forward-compatible solution would be to allow (by whichever
> method settled upon) millisecond-resolution to be specified for
> setting/resetting from where/to play the clip. User agents could
> implement a best-effort, not needing to guarantee any specific
> resolution at this point.
As far as I can tell, HTML5 already allows this.
--
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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