Hi,
Wiebe Cazemier schrieb:
Hi,
I've got some confusion about color spaces. When you select a color space,
either RGB or YUY for example, will that also be the color space in which the
rendered result is stored? That is, can MPEG even store RGB, or is that always
YUV?
No, MPEG is always YUV.
In cinelerra, you choose the colormodel used by the *processing pipeline*.
It's not easy to decide, if RGB or YUV is better. In a case, where both
in- and output formats are YUV based, YUV processing saves 2 conversions.
OTOH if you use an RGB-only filter, the 2 saved conversions will be added at
another place in the pipeline.
My source material is xvid MPEG4's, encoded by
mencoder from separate PNGs.
Isn't it possible to load the pngs directly?
How can I tell what color space an MPEG avi file is in?
All consumer level codecs nowadays work in YUV 4:2:0.
Some JPEGs are YUV 4:2:2.
Mplayer is not very
clear about it. It says this:
VDec: vo config request - 1280 x 720 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
YV12 == YUV 4:2:0
Burkhard
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