On Mon, 10 Dec 2007 18:09:23 +0100, Herman Robak <[EMAIL PROTECTED]>
wrote:
On Mon, 10 Dec 2007 17:51:44 +0100, Richard Spindler
<[EMAIL PROTECTED]> wrote:
2007/12/10, Herman Robak <[EMAIL PROTECTED]>:
Which leads me to another missing feature: "fit to (size)". If you
choose a canvas size, say PAL, then using the camera/projector to
resize HDV or Youtube clips to fit a 4:3 PAL frame is a bit of work.
"Fit to size" is not a trivial problem: Do you want to preserve aspect
ratios? then you need to know both input and output aspect. Then you
want to know whether to fit by adding blackborders on aspect mismatch,
or if you want to crop the image to fit.
Yes, I want to preserve aspect ratio. I was thinking of a global
setting for cropping versus padding. My suggestion would be padding
("letterboxing" and "pillarboxing") by default.
There's more to it than that. Some formats have a little "overscan"
while others don't. If I intermix footage that is "4:3 with 8 pixels
overscan" and 4:3 footage with no overscan, I'd most likeley want the
overscan cropped off, even though I chose "letterboxing" as the fit
strategy.
If you don't understand what I mean, read this to get an idea:
http://www.bbc.co.uk/commissioning/tvbranding/picturesize.shtml
So Cinelerra needs to know about overscan, and treat it the "usual"
way (cropping it off) by default.
--
Herman Robak
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