59     using S = float; // time type
111     class Configuration : public Interpolator<S, T>, public RefBase, public Parcelable {
129         using InterpolatorType = Interpolator<S, T>::InterpolatorType;
132             : Interpolator<S, T>()  in Configuration()
141             : Interpolator<S, T>(*static_cast<const Interpolator<S, T> *>(&configuration))  in Configuration()
306                 Interpolator<S, T>::writeToConfig(&*parcelable->interpolatorConfig);  in writeToParcelable()
325                                : Interpolator<S, T>::readFromConfig(*parcelable.interpolatorConfig)  in readFromParcelable()
337                 ss << ", " << Interpolator<S, T>::toString().c_str();  in toString()
422             : Operation(flags, replaceId, std::numeric_limits<S>::quiet_NaN() /* xOffset */) {  in Operation()
433         Operation(Flag flags, int replaceId, S xOffset)  in Operation()
447         S getXOffset() const {  in getXOffset()
451         void setXOffset(S xOffset) {  in setXOffset()
470         void setNormalizedTime(S normalizedTime) {  in setNormalizedTime()
563         S mXOffset;         // position in the curve to set if a valid number (not nan)
575         State(T volume, S xOffset)  in State()
591         S getXOffset() const {  in getXOffset()
595         void setXOffset(S xOffset) {  in setXOffset()
633         S mXOffset;  // position on curve expressed from MIN_CURVE_TIME to MAX_CURVE_TIME
737     S getDelayXOffset() const {  in getDelayXOffset()
741     void setDelayXOffset(S xOffset) {  in setDelayXOffset()
771         const S x = mXTranslate((T)frameCount);  in getVolume()
774         std::tuple<T /* volume */, S /* position */, bool /* active */> vt =  in getVolume()
799     Translate<S> mXTranslate; // translation from frames (usec for clock time) to normalized time.
806     S mLastXOffset;      // last computed interpolated xOffset/time (x-axis)
807     S mDelayXOffset;     // xOffset to use for first invocation of VolumeShaper.
810     void updatePosition(int64_t startFrame, double sampleRate, S xOffset) {  in updatePosition()
818         S normalizedTime = (getFlags() & VolumeShaper::Operation::FLAG_REVERSE) != 0 ?  in updatePosition()
826     T computeVolumeFromXOffset(S xOffset) const {  in computeVolumeFromXOffset()
833     std::tuple<T /* volume */, S /* position */, bool /* active */>
834     computeStateFromNormalizedTime(S x) const {  in computeStateFromNormalizedTime()
854         const S xOffset = x;  in computeStateFromNormalizedTime()
873     using S = float;
983                     const S x = it->mXTranslate((T)frameCount);  in applyVolumeShaper()
986                     S target = MAX_CURVE_TIME - x;  in applyVolumeShaper()
997             const S xOffset = operation->getXOffset();  in applyVolumeShaper()
1001                     const S x = it->mXTranslate((T)frameCount);  in applyVolumeShaper()
1003                     const S target =  in applyVolumeShaper()