[Vorbis] MDCT ALgorithm

[Monty]

> Can I Know How the MDCT is implemented in Ogg Vorbis Encoder ?

The exact instruction, including paper references are at the top of
lib/mdct.c in the vorbis source code.

> Can I replace MDCT by some other MDCT Optimized ALgortihm ? 

Yes! This is encouraged, in fact, as the MDCT in Vorbis is a generic
routine meant to work predictably everywhere, but it is not optimized
for any specific application.

Monty