[whatwg] HTML5 video: frame accuracy / SMPTE

[Rob Coenen]

Eric, not sure if I understand what you mean. Are you referring to digitally
encoded files where frame #1 has a different duration than frame #2?

On Tue, Jan 11, 2011 at 6:10 PM, Eric Carlson <eric.carlson at apple.com>wrote:

>
> On Jan 11, 2011, at 9:54 AM, Rob Coenen wrote:
>
> > just a follow up question in relation to SMPTE / frame accurate playback:
> As
> > far as I can tell there is nothing specified in the HTML5 specs that will
> > allow us to determine the actual frame rate (FPS) of a movie? In order to
> do
> > proper time-code calculations it's essential to know both the
> video.duration
> > and video.fps - and all I can find in the specs is video.duration,
> nothing
> > in video.fps
> >
>   What does "frames per second" mean for a digitally encoded video file,
> where frames can have arbitrary duration?
>
> eric
>
>
>