timeupdate

Alternatively to using the “timeupdate” event that is provided by the tag, there is always the possibility of using the javascript “setTimeout” or “setInterval” functions:

ginger's thoughts » 2009 » August 2009

It is possible to achieve this effect simply through adding a timeupdate event listener, but proper callbacks like these are much more efficient.

ginger's thoughts » 2009 » October 2009

Also, the BBC found in experiments with Firefox that “timeupdate” is more accurate than polling the “currentTime” regularly.

ginger's thoughts » Jumping to time offsets in HTML5 video 2009

It is possible to achieve this effect simply through adding a timeupdate event listener, but proper callbacks like these are much more efficient.

ginger's thoughts » New proposal for captions and other timed text for HTML5 2009

Also, the BBC found in experiments with Firefox that “timeupdate” is more accurate than polling the “currentTime” regularly.

ginger's thoughts » 2009 » August 2009

Note that for subtitles it makes a lot more sense to use the existing “timeupdate” event of the video rather than creating a frequenty setInterval interrupt, since this will continue calling the function until clearInterval is called or the window is closed.

ginger's thoughts » Jumping to time offsets in HTML5 video 2009

Further, if you want to stop playback at a certain time point, you can use another functionality of the HTML5 tag: the “timeupdate” event:

ginger's thoughts » Jumping to time offsets in HTML5 video 2009

Alternatively to using the “timeupdate” event that is provided by the tag, there is always the possibility of using the javascript “setTimeout” or “setInterval” functions:

ginger's thoughts » Jumping to time offsets in HTML5 video 2009

When the “timeupdate” event fires, which is supposed to happen at a min resolution of 250ms, you can catch the end of your desired interval fairly accurately.

ginger's thoughts » Jumping to time offsets in HTML5 video 2009

Callbacks on timed text segments It is possible to achieve this effect simply through adding a timeupdate event listener, but proper callbacks like these are much more efficient.

ginger's thoughts » New proposal for captions and other timed text for HTML5 2009