Long video clip challenge

Question

I have a video clip that has over two hundred animated
elements, that I need to make selectable for the end user.
Is there any other way other than creating 200 individual
cast members, and then animating each cast members region to match
the elements in the background video. The problem is that my video
clip is 12 min long and in order to match the timing of the cast
member to the appropriate part of the video, I'm having to extend
the video sprite the entire length of the movie (about 21,000
frames give or take a thousand), does anyone know of an easier way.
By the way I'm using MPEG Advace extra with my MPEG 2 video file,
for what it's worth.
Thank you for any help,
Devin

Answer 1

With Mpeg Advance, you can save cuepoints wherever you want
to have
something sync up. Check the docs. There is a page about how
to use
them. I have used this to time external audio with the video
that is
playing.
You should not even try to sync stuff to a video using score
animation.
That will play at different speeds on different machines.
Just put
the Mpeg Advance sprite in one frame with a 'go to the frame'
frame
script. Have a behavior script on the Mpeg Advance sprite
that checks
for mostRecentCuePoint or cuePassed.
You could also use the currentTime property to sync stuff
without using
cue points.