On Sun, 27 Jan 2008 15:42:17 +0100, Terje J. Hanssen <[EMAIL PROTECTED]>
wrote:
...lots of settings...
Are the above settings correct, or should something be changed and
possibly why?
What are really "W Ratio" and "H Ratio" vs "Aspect Ratio"?
What about color model to select, RGBA vs i.e YUVA or other?
YUVA.
The pixel number ratio Width/Height=720/576=1.25 for DV and DV Wide, and
1440/1080=1.33 for HDV
The rectangulary pixel Width/Height ratio calculated from the Aspect
ratios should then be
1.33/1.25=1.064 for DV
1.77/1.25=1.416 for DV Wide
1.77/1.33=1.330 for HDV
I can't provide solid advice from the top of my head, as the full
story is actually more complex than most people realise...
But I will seize the opportunity to complain about a couple of
things that make things harder and less logical in Cinelerra:
Having aspect ratio as a _project setting_ (Format), and only that,
is not the best idea. Pixel aspect ratio is a property of the input
video (source material), and you may have sources with different
aspect ratios. Cinelerra provides no clean way to deal with that.
Besides, if you want to render several versions with different
aspect ratios, the Render dialog has no notion of aspect ratio at
all.
Interlacing is probably not relevant to preview at all (unlike
aspect ratio) since most users will be editing on a computer
with only progressive scan screens. So having the field order
as a Format (Project only) setting is rather awkward. What if
you have input video with one field order and output (Render)
with another? Or if you have sources with different field
orders? Clearly, field ordering is a _resource_ and _render_
property, and is IMHO quite misplaced in the Format dialog.
But I'm afraid per-resource handling of interlacing will be
too deep for Cinelerra 2.x...
Sorry for not really helping. If it is any consolation,
you are not the only one who thinks it is tricky and awkward.
--
Herman Robak
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