C: try to speed up of MMDQ-encode()
C: try to speed up of MMDQ-encode()

note: some questions arised: MSE(smoothon=1) < MSE(smoothon=0) for some params

SergMa/free-mmdq-codec,SergMa/free-mmdq-codec,SergMa/free-mmdq-codec,SergMa/free-mmdq-codec