Lancer 20060506 (based on aoTuV 4.51)
http://homepage3.nifty.com/blacksword/
Changes:
* oggenc2 updates to 2.83
* in mapping_forward, OpenMP'd multithreading code for each channel is
introduced
* optimize FFT in n = 256 to 4096(multithreading tweak, faster at 16KHz
or q < 0)