Possible Duplicate:
get a >24 fps framerate in HTML5 video?
And if it’s not a matter of html5, what is it that determines how high a frame rate we can get? I asking because I’d like to film several things in 60fps and create a slow motion function in JavaScript.
It only depends on the encoded video (frame rate of actual video) and implementation of the browser vendor (whether media player in browser supports that much fps).