On Fri, 31 Jan 2003, Andrew Stevens wrote:
> (RE: Encoder comparisons)
> Yes. mpeg2enc is definately sub-optimal in allocating bits based on how
> likely it is quantisation will show up.  It should get better but I have to
> improved the internal "infrastructure" first.   I will be borrowing a lot of
> useful open-source stuff from the MPEG-4 world - not all of it is really
> relevant but some will definately make noticeable improvements.

That's good to hear.  I was actually going to suggest that you might look
at some of that stuff as an option.  Recently I have discovered that
encoding to two-pass DivX first, then encoding from that back to DVD
format will result in a rather dramatically lower file size and quality
that's as good or better than a straight encode.  I don't know if it's the
two-pass part that's doing it, or the "loss" inherent in using a
preencoded source as input, but the results are actually very pleasing.
Only trouble is, it makes an already slow process even slower.  As for
CCE, the most impressive thing there was the speed -- whatever they're
doing, they can do a three-pass encode in a third the time it takes
mpeg2enc to make a single pass.  (Though there might be lots of other
reasons for that, since I didn't run their test encode that gave that
time on my machine, as I don't have CCE.)

--
  Robert Kesterson
  [EMAIL PROTECTED]





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