ref: 2b7d9a96e128b76776f5365b3a93d6de9d1e8ea5
dir: /TODO/
- optimize codebook list (section_data) - optimize CPE windows grouping - faster mdct in blockswitch - Add PNS - Add IS - 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)