On Sat, 25 Aug 2007 00:10:42 +0200, Christian Thaeter <[EMAIL PROTECTED]>
wrote:
Herman Robak wrote:
(about interlacing)
Here is how I think it should go:
1) Split out the fields, putting them after one another on the timeline.
2 a) Line-double or interpolate them up to full vertical resolution
or
b) Make the rendering pipeline treat the fields as very wide
non-square pixels.
(sorry, I meant "very tall" non-square pixels)
b) .. lets us safe memory since fields have only half the bandwidth
(memory, cpu,..), but we need pixel aspect and the render pipe needs to
be aware of this, it needs also be aware that bottom fields are shifted
a halfline lower (important for temporal effects).
Yes. That makes me think of "pixel shifting", those evil tricks that
are employed to eke more resolution out of fewer pixels.
There have been complaints that Cinelerra's interpolation is too soft,
making scaling and translation very lossy. This article on "sharpness"
may provide some insight: http://www.adamwilt.com/TechDiffs/Sharpness.html
--
Herman Robak
_______________________________________________
Cinelerra mailing list
[email protected]
https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
