[jitter] advice on hidef playback

the current mac minis are incapable of decent 1080i playback in jitter  
with photoJPEG 75%.  they are jittery.  you'll have better luck with  
720p.  also, if there is no blending, use direct-to-window playback  
(send the message 'window [jit.window's name]' into jit.qt.movie to do  
it).

On Jan 26, 2008, at 3:51 PM, Sasha Harris-Cronin wrote:

>
> I'm looking for a little advice.  I have some exhibits that need to  
> do some simple high definition video playback, including keeping  
> track of timecode, switching movies and seeking within them.  Until  
> now, they've been spec'd as using harddisk MPEG-2 video players.   
> Unfortunately, we've tested the major ones (Mantis, Adtec, Alcorn- 
> McBride) and they can output high definition without a hitch, but  
> they all suck at seeking within movies. So I'm thinking about trying  
> with Jitter and a mac mini.
>
> I know I can bang out the playing and seeking easily enough in  
> Jitter.  I'm curious about the playback quality, though.
>
> I'm guessing the video will be 720 x 1280 but I'm curious about 1080  
> x 1920 as well.  I probably have a little leeway about resolution,  
> but it will not be standard def.  The playback is very vanilla.  Not  
> even fades between the clips.
>
> What encoding type/quality is best?  PhotoJPEG 50%?  Is there a way  
> to take advantage of OpenGL?  Can I even do that on the 64MB Intel  
> GMA950 vdieo card that is in the mac mini?
>
> I know this question has been addressed in various ways before, but  
> things change quickly enough that I thought I'd ask again.
>
> Thanks!
>
> sasha.
> --
> --- sasha harris-cronin ----
> -- sasha at mortalspaces.com --
> --- www.mortalspaces.com ---
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