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Horizon Smart Car Developer Community
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Guide
Horizon Smart Car Developer Community
Horizon Official Website
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hbFFT1D

typedef struct { hbFFTPointSize pSize; int8_t normalize; } hbFFTParam;

FFT 1D operator parameter.

  • Member

    Member NameDescription
    pSizeFFT points support the types in hbFFTPointSize.
    normalizeReserved parameter, defaults 0. Whether specification is performed is identified by 0 for non-specification and other values for specification.
Note

Specification refers to some form of scaling of the FFT results so that the results meet specific criteria or are easily interpreted.

int32_t hbFFT1D(hbUCPTaskHandle_t *taskHandle, hbHPLImaginaryData *dst, hbHPLImaginaryData const *src, hbFFTParam const *param);

The API for calling the FFT 1D.

When the imaginary data type is HB_HPL_DATA_TYPE_I16 or HB_HPL_DATA_TYPE_I32, its data layout format is only supported as HB_IM_FORMAT_SEPARATE. When the imaginary data type is HB_HPL_DATA_TYPE_F32, its data layout format is only supported as HB_IM_FORMAT_INTERLEAVED.

  • Parameter

    • [out] taskHandle Task handle is responsible for the interaction of the operator with the UCP architecture.
    • [out] dst Output dummy data including type, format and dimension information is consistent with the input.
    • [in] src Enter the dummy data.
    • [in] param Operator parameter.

  • Return Value

    • Return 0 means the API was successfully executed, otherwise the execution failed.