ref: aa1eaee4022d8cc79b9d83bd3aae64769b433cc9
dir: /TODO/
- optimize quantization bias - optimize codebook list (section_data) - optimize CPE windows grouping - faster mdct in blockswitch - Add bit reservoir control - Add resampler and downmixer (hans-juergen, Oct 17, 2004) - Add HE AAC (hans-juergen, Oct 17, 2004) - Test TNS(arcen, Apr 8th, 2012)