AdaptiveCodebookGain

Calculates the gain of the adaptive-codebook vector and the filtered codebook vector.

Syntax

IppStatus ippsAdaptiveCodebookGain_G7291_16s(const Ipp16s pSrcAdptTarget[40], const Ipp16s pSrcImpulseResponse[40], const Ipp16s pSrcAdptVector[40], Ipp16s pDstFltAdptVector[40], Ipp16s* pResultAdptGain);

Parameters

pSrcAdptTarget	Pointer to the adaptive target signal vector.
pSrcImpulseResponse	Pointer to the impulse response of the perceptual weighting filter vector.
pSrcAdptVector	Pointer to the adaptive-codebook vector.
pDstFltAdptVector	Pointer to the output filtered adaptive-codebook vector.
pResultAdptGain	Pointer to the output adaptive-codebook gain value.

Description

The function ippsAdaptiveCodebookGain_G7291 is declared in the ippsc.h file. It computes the gain of the adaptive-codebook vector, calculates the filtered adaptive-codebook vector and coefficients needed for the gain quantization, respectively. This function are applied in subframes.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error when one of the specified pointers is NULL.