Signal Filtering Functions

Functions that provide functionality of generating output signal based on the input signal like signal integral, etc.

Signal Integral

Integral

Compute the indefinite integral of a given signal. The i-th element is computed to be

\[ s'_i = \sum_0^i s_j \]

Functions

NppStatus nppsIntegralGetBufferSize_32s(int nLength, int *hpBufferSize)

Device scratch buffer size (in bytes) for 32s nppsIntegral.

This primitive provides the correct buffer size for nppsIntegral_32s.

Parameters

• nLength – Signal Length.

• hpBufferSize – Required buffer size. Important: hpBufferSize is a host pointer. Scratch Buffer and Host Pointer.

NppStatus nppsIntegral_32s_Ctx(const Npp32s *pSrc, Npp32s *pDst, int nLength, Npp8u *pDeviceBuffer, NppStreamContext nppStreamCtx)

Compute cumulative sum of 32-bit signed integer signal.

Parameters

• pSrc – Source Signal Pointer.

• pDst – Pointer to the output result.

• nLength – Signal Length.

• pDeviceBuffer – Pointer to the required device memory allocation.

• nppStreamCtx – Application Managed Stream Context.

Returns

Signal Data Related Error Codes, Length Related Error Codes.

NppStatus nppsIntegral_32s(const Npp32s *pSrc, Npp32s *pDst, int nLength, Npp8u *pDeviceBuffer)

Compute cumulative sum of 32-bit signed integer signal.

Parameters

• pSrc – Source Signal Pointer.

• pDst – Pointer to the output result.

• nLength – Signal Length.

• pDeviceBuffer – Pointer to the required device memory allocation.

Returns

Signal Data Related Error Codes, Length Related Error Codes.