At 9:53 AM -0800 11/3/01, Cameron Kaiser wrote:
>  > Your best bet is to capture 320x480 at 30fps. This is pretty much the
>>  maximum. Some cannot even get this. After you have edited your video,
>>  you can export 320x480 hardware doubled. On a regular TV, you may not
>>  know the difference between this and 640x480.
>
>Since you're not expanding the horizontal, how does this work? Or is this
>a trick of the A/V inputs (which my 7300 doesn't have, I use a video capture
>card)?

Duh, after reading this several time, I now realize there's a typo. 
It should read 320x240. No trick;=)

This is for output to the RCA or S-Video ports. Using the Monitors 
Control Panel, you set the TV monitor resolution to 320x480. I don't 
really know how the doubling works, but this output effectively puts 
one pixel where four should be on the TV. Of course, on a TV you 
can't see the pixels distinctly. I think only the 8500 has this 
feature.

I'm sure someone else on this list would have more technical details.

Just found this on:

<http://www.sims.berkeley.edu/~jwang/cgi/av-faq>

"Special hardware interpolation for video-out is also available on 
the 8500/8600. For example, by selecting the half-sized 320x240 NTSC 
resolution for video-out, a likewise sized movie would be smoothly 
interpolated in the horizontal and vertical directions to the full 
640x480 television frame. The resulting picture is of much higher 
quality than software-based pixel doubling, and incurs no CPU 
processing."

_
Andrew
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