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Commit 430b61c7 authored by Andy Hung's avatar Andy Hung
Browse files

Add capability for floating point Kaiser window filters 



Change-Id: Idbb33248bbab2300c2650a4657d8fbc482a5d46c
Signed-off-by: default avatarAndy Hung <hunga@google.com>
parent 78136683

services/audioflinger/AudioResamplerFirGen.h

+3 −2
Original line number Diff line number Diff line
@@ -669,11 +669,12 @@ static inline void firKaiserGen(T* coef, int L, int halfNumCoef, 
                sg.advance();

            }



            // (caution!) float version does not need rounding

            if (is_same<T, int16_t>::value) { // int16_t needs noise shaping

                *coef++ = static_cast<T>(toint(y, 1ULL<<(sizeof(T)*8-1), err));

            } else {

            } else if (is_same<T, int32_t>::value) {

                *coef++ = static_cast<T>(toint(y, 1ULL<<(sizeof(T)*8-1)));

            } else { // assumed float or double

                *coef++ = static_cast<T>(y);

            }

        }

    }