[Aften-devel] new exponent strategy search (and API change)

[Justin R. <jus...@gm...>]

Hi,

I added a feature which changed the API.
AftenEncParams.params.expstr_fast is now AftenEncParams.expstr_search.
I changed the commandline option from -fes to -exps which has a value
from 1 to 32.

This gives finer control over speed vs. quality.  The new list of
choices for exponent strategy sets are the same as those in the E-AC-3
spec (A/52B table E2.14).  I ran tests on many source files to come up
with a priority list of the most commonly used sets.

-Justin