Function

vDSP_fft_zriptD(_:_:_:_:_:_:)

Computes an in-place double-precision real discrete Fourier transform, either from the time domain to the frequency domain (forward) or from the frequency domain to the time domain (inverse).

Declaration

func vDSP_fft_zriptD(_ __Setup: FFTSetupD, _ __C: UnsafePointer<DSPDoubleSplitComplex>, _ __IC: vDSP_Stride, _ __Buffer: UnsafePointer<DSPDoubleSplitComplex>, _ __Log2N: vDSP_Length, _ __Direction: FFTDirection)

Discussion

This is the same as vDSP_fft_zript(_:_:_:_:_:_:), except for the types of the Setup object and the C and Buffer vectors.

See also functions vDSP_create_fftsetupD(_:_:) and vDSP_destroy_fftsetupD(_:).

See Also

1D Fast Fourier Transforms (In-Place Real)

func vDSP_fft_zrip(FFTSetup, UnsafePointer<DSPSplitComplex>, vDSP_Stride, vDSP_Length, FFTDirection)

Computes an in-place single-precision real discrete Fourier transform, either from the time domain to the frequency domain (forward) or from the frequency domain to the time domain (inverse).

func vDSP_fft_zripD(FFTSetupD, UnsafePointer<DSPDoubleSplitComplex>, vDSP_Stride, vDSP_Length, FFTDirection)

Computes an in-place double-precision real discrete Fourier transform, either from the time domain to the frequency domain (forward) or from the frequency domain to the time domain (inverse).

func vDSP_fft_zript(FFTSetup, UnsafePointer<DSPSplitComplex>, vDSP_Stride, UnsafePointer<DSPSplitComplex>, vDSP_Length, FFTDirection)

Computes an in-place single-precision real discrete Fourier transform, either from the time domain to the frequency domain (forward) or from the frequency domain to the time domain (inverse). Usesa temporary buffer to improve performance.