Hi!
I was using 'dvdview':
http://rachmaninoff.informatik.uni-mannheim.de/dvdview/
to look at some .mpg and .vob files and noticed something interesting.
From a DVD:
dvdview -v 3 tlb.vob
the line:
intra dc precision: 10
appears. BUT when I run dvdview against a .mpg file created with
mpeg2enc:
intra dc precision: 9
Where does the extra precision come from? From the capture equipment
or from the MPEG encoder?
I see that mpeg2enc has the option "--intra_dc_prec [9-10]" - does
that affect the calculations or does it simply set the value in the
MPEG headers? What effect, if any, does a higher dc precision have
on the picture quality?
Cheers,
Steven Schultz
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