ReconstructLumaInter

Reconstructs inter luma macroblock.

Syntax

IppStatus ippiReconstructLumaInter_AVS_16s8u_C1R(Ipp16s** ppSrcCoeff, Ipp8u* pSrcDstYPlane, Ipp32s srcDstYStep, const Ipp32s* pSrcNumCoeffs, Ipp32u cbp8x8, Ipp32u QP);

Parameters

ppSrcCoeff	Pointer to the order of 8x8 blocks of residual coefficients for this macroblock, which are taken as a result of entropy decoding (8x8 luminance inter blocks, if the block is not zero-filled) in the same order as is shown in Figure 6‑7 of [AVS]. The pointer is updated by the function and points to the blocks for the next macroblock.
pSrcDstYPlane	Pointer to the current macroblock that is reconstructed in Y-plane. This macroblock must contain inter prediction samples.
srcDstYStep	Y-Plane step.
pSrcNumCoeffs	Array of indices of the last coefficient in each subblock. pSrcNumCoeffs[i] is defined in the same order as the coded subblocks go.
cbp8x8	Coded block pattern. If cbp8x8 & (1<<(1+i)) is not equal to 0 (0 ≤ i < 4), i-th 8x8 AC luma block is not zero-filled and it exists in ppSrcCoeff.
QP	Quantization parameter (CurrentQP in [AVS]). It must be within the range [0;63].

Description

The function ippiReconstructLumaInter_AVS_16s8u_C1R is declared in the ippvc.h file. This function reconstructs inter luma macroblocks:

Performs scaling, integer inverse transformation, and shift for each 8x8 block in the same order as is shown in Figure 6‑7 of [AVS] in accordance with 9.5 of [AVS].
Performs adding of a 16x16 inter prediction block and a 16x16 residual block in accordance with 9.10 of [AVS].

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error condition if at least one of the specified pointers is NULL.
ippStsOutOfRangeErr	QP is less than 0 or greater than 63.