From: "Mark Vojkovich" <[EMAIL PROTECTED]>
Sent: Saturday, May 11, 2002 10:19 PM


>
>    Mpeg2 supports interleaved content.  Looks like crap if you
> display it as a weave.   We're mostly talking about that on this
> list.  I think we merely need a standard XvPortAttribute hint
> to tell the Xv adaptor if the next Xv(Shm)PutImage request
> should be a field instead of the default frame behavior.  The
> Xv adaptor only loads half of the data in that case and
> displays it with the correct offsets and scaling.
>
>
OK,
I think I'm beginning to understand. (Actually, I just trawled up an
excellent article at
http://www.hometheaterhifi.com/volume_7_4/dvd-benchmark-part-5-progressive-1
0-2000.html)

So taking this and your recent reply to Billy...
In my case I would decode two consecutive wavelet images into an odd and
even field, weave them into a 704x486 image, copy it to shm, then call
XvShmPutImage twice, setting the XvPortAttribute appropriately.
If I lose phase, say I get two even fields in a row, then should I weave two
frames with anything on the odd scan lines andcall XvShmPutImage once for
each frame with the PortAttribute set for an the field each time?

--
Paul

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