ReconstructLumaInterMB

Reconstructs inter luma macroblock.

Syntax

IppStatus ippiReconstructLumaInterMB_H264_16s8u_C1R(Ipp16s** ppSrcCoeff, Ipp8u* pSrcDstYPlane, Ipp32u srcDstYStep, Ipp32u cbp4x4, Ipp32s QP);

ppSrcCoeff	Pointer to the order of 4x4 blocks of residual coefficients for this macroblock, which are taken as a result of Huffman decoding (4x4 luma blocks, if the block is not zero-filled) in the same order as is shown in Figure 6‑6 of [JVTG050]. 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 current Y-plane. This macroblock must contain inter prediction samples.
srcDstStep	Plane step.
cbp4x4	Coded block pattern. If cbp4x4 & (1<<(1+i)) is not equal to 0 (0 ≤ i < 16), i-th 4x4 AC luma block is not zero-filled and it exists in ppSrcCoeff.
QP	Quantization parameter (QP_Y in [JVTG050]). It must be within the range [0;51].

The function ippiReconstructLumaInterMB_H264_16s8u_C1R is declared in the ippvc.h file. This function reconstructs inter luma macroblock:

Performs scaling, integer inverse transformation, and shift for each 4x4 block in the same order as is shown in Figure 6‑6 of [JVTG050 ] in accordance with 8.5.8 of [JVTG050] in the same way as DequantTransformResidual_H264 function does.
Performs adding of a 16x16 inter prediction block and a 16x16 residual block in accordance with 8-247 of [JVTG050].

This function is used in the H.264 decoder included into Intel IPP Samples. See introduction to H.264.

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 51.