Claudio Freire b629c67ddf AAC encoder: memoize quantize_band_cost ...

The bulk of calls to quantize_band_cost are replaced
by a call to a version that memoizes, greatly improving
performance, since during coefficient search there is
a great deal of repeat work.

Memoization cannot always be applied, so do this in a
different function, and leave the original as-is.

2015-10-12 03:56:22 -03:00

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