Hi list!

I am currently producing a cd-rom with just one digital video (4 mins) on
it, but this in 3 formats / sizes.

Here are the sizes:
1 quicktime sorenson 3, 320 x 240, 12.5 fps mono
2 mpg1/directmediaXtra, 384 x 288, 25 fps stereo
3 quicktime sorenson 3, 384 x 288, 25 fps stereo

All three movies can be viewed at 100 % or at 200 %

I want the user to be able to switch from one size/quality to another while
the movie is running.

I already have it running and on my fast pc it works fine. On poor PCs
however it mostly doesn't work at all.

Here is how I did it:

I have the 3 video cast members in 3 sprites that are placed vertically in
the score.

I use Lingo to place any video that is not running off the screen and have
it paused.

When the user clicks on a button to change the quality, I first save the
movietime of the video that is running, stop that video, place it off
screen, make some cleanup of the stage, locate the new movie to the saved
position of the first video, place it on screen and let it run.

As I said, it works, but the performance is worse than I expected (on win2k
machines / dir 8.5 / qt6). I wonder if it would be better to place the video
sprites horizontally, one after the other in the score and jump from one to
the other, instead of having all 3 sprites in the score at the same frame.
I could rearrange all to check that out, but before I do that, I thought
maybe one of you had experience he/she could share and save me that tedious
task. ?!

Thanks for any comment!

Michael

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