[whatwg] HTML5 video: frame accuracy / SMPTE

Eric Carlson eric.carlson at apple.com
Fri Jan 7 09:02:41 PST 2011

On Jan 7, 2011, at 8:22 AM, Rob Coenen wrote:

> are there any plans on adding frame accuracy and/or SMPTE support to HTML5
> video?
> As far as I know it's currently impossible to play HTML5 video
> frame-by-frame, or seek to a SMPTE compliant (frame accurate) time-code.
> The nearest seek seems to be precise to roughly 1-second (or nearest
> keyframe perhaps, can't tell).
> Flash seems to be the only solution that I'm aware of that can access video
> on a frame-by-frame basis (even though you the Flash Media Server to make it
> work).
> Seeking to a SMPTE time-code is completely impossible with any solution I
> have looked at.
> Very interested to learn what the community POV is, and why it isn't already
> implemented.
  'currentTime' is a double so you should be able to seek more accurately than one second - modulo the timescale of the video file and how the UA supports seeking to inter-frame times.


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