possible valuable tip for improving Quicktime playback in Vista - please test if you have time

[Phil Davis]

Thanks Josh - this is good info. It's going into my notes.
Phil Davis


Josh Mellicker wrote:
> This tip is for slower computers running Vista, like older or cheaper 
> models.
>
>
> 1. Download or encode a 640 x 360 H.264 movie, or, go to:
>
> http://dvcreators.net/media/misc/test/
>
> and right click "san_fran_trolly.mov" and save to disk.
>
>
> 2. Play it in Quicktime Player in Vista on a cheap netbook. Plays 
> pretty good, close to or at 30 fps.
>
>
> 3. Put a player object on a Rev card, (and maybe a button to set the 
> fileName, and alwaysBuffer), and make a standalone.
>
>
> 4. Load the same movie in. Playback is awful, a lot of skipped frames. 
> Alwaysbuffer true, false, doesn't make much difference.
>
>
> 5. Now, quit the standalone, right-click it, and under "Compatibility 
> mode", check the box and choose "Windows XP (Service Pack 2) from the 
> option menu.
>
>
> 6. Load the standalone again and voila! Smooth (or much improved) 
> playback.
>
>
>
> My guess is that Quicktime Player is preset to an XP compatibility 
> mode? Or uses a different method to play Quicktime movies than 
> Revolution on Vista?
>
> I'm not sure what's happening, but if you have clients with cheap, 
> slow Windows computers and you are delivering H.264 .mp4 or .mov video 
> to them, this will save you!
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-- 
Phil Davis

PDS Labs
Professional Software Development
http://pdslabs.net