[whatwg] Video : Slow motion, fast forward effects

Dave Singer singer at apple.com
Thu Aug 7 13:21:59 PDT 2008

At 12:23  -0700 7/08/08, Charles Iliya Krempeaux wrote:
>I don't think turning sound off is a good idea.

well, the alternative is throwing a Not_supported error and not even 
showing the video.  So, I still feel that for a/v movies, reversing 
the sound should be permitted but not required.

>This feature would be used to implement "scrubing".  Like what you 
>see in Non-Linear Editors... for making movies, etc.  (I.e., 
>grabbing the "position handle" of the player, and moving it forwards 
>and backwards through the video, and varying speeds, to find what 
>you are looking for.)
>In those types of applications, the audio is on.  And it is 
>important for usability, for the video editor to hear the sound.

If it's important to the user, they should use a browser which implements it.
David Singer

More information about the whatwg mailing list