[whatwg] Video Element Events? - Use Case: Custom Progress Bar

Jeremy Doig jeremydo at google.com
Mon Nov 17 15:07:20 PST 2008

no  - all I'm saying is that in 48 of the 50x/sec you get called, you can
trivially figure out that nothing needs to be done, so return quickly.

On Mon, Nov 17, 2008 at 3:05 PM, Jonas Sicking <jonas at sicking.cc> wrote:

> Jeremy Doig wrote:
>> i would hope that repainting a progress bar that has not moved 50x/second
>> would not be a normal implementation too. 2x/second seems more realistic (a
>> 300s video with a 600 pixel-wide playbar).
> Well, pages are most likely going to update the progress bar as often as we
> fire the event. So if we fire the event 50x/second then that's how often the
> progress bar will be updated.
> Sure, some pages might do things like only update on every 10th event, but
> this seems like a complex future since then content might start relying on
> that implementations use a specific firing rate.
> / Jonas
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