54     using S = float; // time type
106     class Configuration : public Interpolator<S, T>, public RefBase, public Parcelable {
124         using InterpolatorType = Interpolator<S, T>::InterpolatorType;
127             : Interpolator<S, T>()  in Configuration()
136             : Interpolator<S, T>(*static_cast<const Interpolator<S, T> *>(&configuration))  in Configuration()
296                             ?: Interpolator<S, T>::writeToParcel(parcel);  in writeToParcel()
309                             ?: Interpolator<S, T>::readFromParcel(*parcel)  in readFromParcel()
321                 ss << ", " << Interpolator<S, T>::toString().c_str();  in toString()
361             : Operation(flags, replaceId, std::numeric_limits<S>::quiet_NaN() /* xOffset */) {  in Operation()
372         Operation(Flag flags, int replaceId, S xOffset)  in Operation()
386         S getXOffset() const {  in getXOffset()
390         void setXOffset(S xOffset) {  in setXOffset()
409         void setNormalizedTime(S normalizedTime) {  in setNormalizedTime()
450         S mXOffset;         // position in the curve to set if a valid number (not nan)
462         State(T volume, S xOffset)  in State()
478         S getXOffset() const {  in getXOffset()
482         void setXOffset(S xOffset) {  in setXOffset()
507         S mXOffset;  // position on curve expressed from MIN_CURVE_TIME to MAX_CURVE_TIME
611     S getDelayXOffset() const {  in getDelayXOffset()
615     void setDelayXOffset(S xOffset) {  in setDelayXOffset()
645         const S x = mXTranslate((T)frameCount);  in getVolume()
648         std::tuple<T /* volume */, S /* position */, bool /* active */> vt =  in getVolume()
673     Translate<S> mXTranslate; // translation from frames (usec for clock time) to normalized time.
680     S mLastXOffset;      // last computed interpolated xOffset/time (x-axis)
681     S mDelayXOffset;     // xOffset to use for first invocation of VolumeShaper.
684     void updatePosition(int64_t startFrame, double sampleRate, S xOffset) {  in updatePosition()
692         S normalizedTime = (getFlags() & VolumeShaper::Operation::FLAG_REVERSE) != 0 ?  in updatePosition()
700     T computeVolumeFromXOffset(S xOffset) const {  in computeVolumeFromXOffset()
707     std::tuple<T /* volume */, S /* position */, bool /* active */>
708     computeStateFromNormalizedTime(S x) const {  in computeStateFromNormalizedTime()
728         const S xOffset = x;  in computeStateFromNormalizedTime()
747     using S = float;
857                     const S x = it->mXTranslate((T)frameCount);  in applyVolumeShaper()
860                     S target = MAX_CURVE_TIME - x;  in applyVolumeShaper()
871             const S xOffset = operation->getXOffset();  in applyVolumeShaper()
875                     const S x = it->mXTranslate((T)frameCount);  in applyVolumeShaper()
877                     const S target =  in applyVolumeShaper()