LSFDecode

Decodes the quantized LSFs.

Syntax

IppStatus ippsLSFDecode_G7291_16s (const Ipp16s pQuantIndex[4], Ipp16s pSrcDstPrevLSF[4][10], Ipp16s pSrcDstLSF[10]);

Parameters

pQuantIndex	Pointer to the input vector of codebook indexes.
pQuantIndex	Pointer to the input/output table of 4 previously quantized LSFs vectors.
pSrcDstLSF	Pointer to the quantized LSF input/output vector.

Description

The function ippsLSFDecode_G7291 is declared in the ippsc.h file. This function retrieves the quantized LSF coefficients from the quantization table and indexes.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error when one of the specified pointers is NULL.
ippStsLSFLow	Indicates a warning of low stability of LSF.
ippStsLSFHigh	Indicates a warning of high stability of LSF.