CrossCorrNormGetBufferSize

Computes the size of the work buffer for the ippsCrossCorrNorm function.

Syntax

IppStatus ippsCrossCorrNormGetBufferSize (int src1Len, int src2Len, int dstLen, int lowLag, IppDataType dataType, IppEnum algType, int* pBufferSize);

Include Files

ipps.h

Parameters

src1Len	Number of elements in the first source vector.
src2Len	Number of elements in the second source vector.
dstLen	Number of elements in the destination vector (length of cross-correlation).
lowLag	Lower value of the range of lags at which the correlation is computed.
dataType	Data type for cross-correlation. Possible values are ipp32f, ipp32fc, ipp64f, or ipp64fc.
algType	Bit-field mask for the algorithm type definition. Possible values are the results of composition of the IppAlgType and IppsNormOp values.
pBufferSize	Pointer to the size of the work buffer.

Description

The ippsCrossCorrNormGetBufferSize function computes the size in bytes of the external work buffer needed for the function that performs cross-correlation. The result is stored in the pBufferSize parameter.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error when pBufferSize is NULL.
ippStsSizeErr	Indicates an error when the length of the vector is negative, or equal to zero.
ippStsAlgTypeErr	Indicates an error when: the result of the bitwise AND operation between the algType and ippAlgMask values differs from the ippAlgAuto, ippAlgDirect, or ippAlgFFT values. the result of the bitwise AND operation between the algType and ippsNormMask values differs from the ippsNormNone, ippsNormA, or ippsNormB values.
ippStsDataTypeErr	Indicates an error when the dataType value differs from the Ipp32f, Ipp32fc, Ipp64f, or Ipp64fc.