[whatwg] HTML5 video: frame accuracy / SMPTE

Eric Carlson eric.carlson at apple.com
Wed Jan 12 16:23:57 PST 2011

On Jan 12, 2011, at 4:04 PM, Robert O'Callahan wrote:

> On Wed, Jan 12, 2011 at 9:42 PM, Philip Jägenstedt <philipj at opera.com>wrote:
>> For the record, this is the solution I've been imagining:
>> * add HTMLMediaElement.seek(t, [exact]), where exact defaults to false if
>> missing
>> * make setting HTMLMediaElement.currentTime be a non-exact seek, as that
>> seems to be the most common case
> I think setting currentTime should be exact, since a) exact seeking is
> simpler from the author's point of view and b) it would be unfortunate to
> set currentTime to value T and then discover that getting currentTime gives
> you a value other than T (assuming you're paused).
  I agree that precise seeking follows the principle of least surprise, based partly on the bugs files against the <video> element on iOS where this hasn't always been the behavior.


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