ISFQuantHighBand

Performs ISF quantization of HF-band encoded signal.

Syntax

IppStatus ippsISFQuantHighBand_AMRWBE_16s(const Ipp16s* pSrcISF, Ipp16s* pSrcDstPastQISF, Ipp16s* pDstQISF, Ipp16s* pQuandIdxs, Ipp32s pitchAdjust);

Parameters

pSrcISF	Pointer to the source vector of proceeding ISF [8].
pSrcDstPastQISF	Pointer to the past quantized ISF [8].
pDstQISF	Pointer to the output vector of quantized ISF [8].
pQuantIdxs	Pointer to the output quantization indices [2].
pitchAdjust	Controls pitch adjustment: if it equals to 0, then the function does not perform pitch adjustment.

Description

The function ippsISFQuantHighBand_AMRWBE is declared in ippsc.h file. This function performs ISF quantization of HF-band encoded signal using one-stage VQ with 8 elements.

See also 3GPP TS 26.290: “Extended AMR Wideband Speech Codec; Transcoding functions", clauses 5.4 [AMRWB+].

Return Values

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