>Idea for quantize_xrpow()
> - calculate xrpow_max when initially calculating the xrpow[] array
from
> xr[]
> - in quantize_xrpow[] before doing the 576 calculations, check that
> xrpow_max * istep does not exceed 8191 + 14. If it does, exit and
> choose a new step size.
> - this basically eliminates the maximum value check in count_bits
and
> saves a chunk of time.
Am I missing something or shouldnt this xrpow quantizer function be
implemented
in the calc_noise and in the decoder too?
..And isnt that calc_noise calculations just the reverse what it's
doing in
the quantize routine, just (re/reverse) calculating the double -> int
round
offs which could be stored for later use in the quantize function...
even
calculateing the noise at the same time.. I'll try to implement.
> Idea for binsearch_stepsize()
> - JHL's binsearch is good. It may be possible to *predict* the
> stepsize rather than keep guessing it.
Even better to predict it for each channel separately..
- Juha
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