Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference

ID 790148
Date 10/31/2024
Public
Document Table of Contents

FIRSRGetSize

Computes the size of the constant structure and work buffer for single-rate FIR filtering.

Syntax

Case 1: Operation on a signal that has the same data type as the coefficients

IppStatus ippsFIRSRGetSize(int tapsLen, IppDataType tapsType, int* pSpecSize, int* pBufSize);

Case 2: Operation on a signal that has a data type different from the data type of the coefficients

IppStatus ippsFIRSRGetSize32f_32fc(int tapsLen, int* pSpecSize, int* pBufSize);

Include Files

ipps.h

Domain Dependencies

Headers: ippcore.h, ippvm.h

Libraries: ippcore.lib, ippvm.lib

Parameters

tapsLen

Length of the FIR filter.

tapsType

Data type of the coefficients. The supported values are ipp32f, ipp32fc, ipp64f, and ipp64fc.

pSpecSize

Pointer to the size of the internal constant specification structure.

pBufSize

Pointer to the size of the work buffer required for FIR filtering.

Description

This function computes the following:

  • Size of the internal constant specification structure for single-rate FIR filtering. The structure can be shared between all threads of the application.
  • Size of the work buffer for each thread.

Return Values

ippStsNoErr

Indicates no error.

ippStsNullPtrErr

Indicates an error when one of the specified pointers is NULL.

ippStsSizeErr

Indicates an error when the tapsLen value is less than, or equal to zero.

ippStsDataTypeErr

Indicates an error when the specified taps type is not supported.