How to decompose ippiReconstructCoeffsInter_MPEG4_1u16s ?

[kamildobk1]

I need to access DCT coefficients before inverse quantization. I tried the following:

my_ReconstructCoeffsInter_MPEG4_1u16s(
ipp8u** ppBitStream,
int* pBitOffset,
Ipp16s* pCoeffs,
int* pIndxLastNonZero,
int rvlcFlag,
int scan,
const IppiQuantInvInterSpec_MPEG4 *pQuantInvInterSpec,
int QP )
{
ippiDecodeCoeffsInter_MPEG4_1u16s(
ppBitStream,
pBitOffset,
pCoeffs,
pIndxLastNonZero,
rvlcFlag,
scan );

ippiQuantInvInter_MPEG4_16sC1I(
pCoeffs,
*pIndxLastNonZero,
pQuantInvInterSpec,
QP );
}

But apparently it is not the same - the picture is disstorted ( I replaced default call in mp4_DecodeInterMB() in mpeg4 decoder ). Am I missing something ? I use IPP ver5.1 on WinXP.

Thanks in advance,
Kamil

[kamildobk1]

Now works ok,

Thank you very much,
Kamil

[Vladimir_Dudnik]

you are welcome, Kamil