ref: 459dbbc305d6cf91a97203fff54c93e3d6e25487
dir: aacenc/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)