[whatwg] <video> feedback
ian at hixie.ch
Thu Dec 20 09:54:04 PST 2012
On Thu, 20 Dec 2012, Mark Callow wrote:
> On 2012/12/18 9:01, Ian Hickson wrote:
> > On Tue, 2 Oct 2012, Jer Noble wrote:
> >> The nature of floating point math makes precise frame navigation
> >> difficult, if not impossible. Rob's test is especially hairy, given
> >> that each frame has a timing bound of [startTime, endTime), and his
> >> test attempts to navigate directly to the startTime of a given frame,
> >> a value which gives approximately zero room for error.
> > That makes sense.
> > Should we add a preciseSeek() method with two arguments that does a
> > seek using the given rational time?
> I draw your attention to "Don't Store that in a float
> and its suggestion to use a double starting at 2^32 to avoid the issue
> around precision changing with magnitude as the time increases.
Everything in the Web platform already uses doubles.
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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