Instead of having a global quality setting for the encoder make the encoder
provide its default value by itself. Fixes the libmp3lame encoder using an
unsuitable value since the range differs greatly between the encoders.
Centralize reading the configuration values for rbspeex. The values are stored
in member variables, so it's not necessary to read them multiple times.
Change-Id: Ia26cb1fc3bb4f927d13212fe7883bdfe2571a711
Create a separate source / header file for each supported encoder and the base
class and rename classes for better readability. This should also make it
easier adding new encoders.
Remove a few trailing spaces while at it.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31592 a1c6a512-1295-4272-9138-f99709370657
