Clear up concurrent circular buffer's size & capacity interface.
Clear up concurrent circular buffer's size & capacity interface.

morbozoo/sonyHeadphones,2666hz/Cinder,sosolimited/Cinder,2666hz/Cinder,2666hz/Cinder,2666hz/Cinder,sosolimited/Cinder,morbozoo/sonyHeadphones,sosolimited/Cinder,morbozoo/sonyHeadphones,sosolimited/Cinder,morbozoo/sonyHeadphones