Fix for ticket 230, wrong memory bandwidth in DMVR

no effect to usual encoding and decoding, all added codes are active only when specific define is on.

resolved all discussions

merged

mentioned in commit 1dfbb031

Eventhough memory bandwidth measurement is disabled here to not factor while xinitMC and xFinalPaddedMCForDMVR, It is re-enabled inside predInterBlk in the following place, which makes the memory bandwidth measurement wrong.

JVET_J0090_SET_CACHE_ENABLE( true ); if (bioApplied && compID == COMPONENT_Y) { const int shift = std::max(2, (IF_INTERNAL_PREC - clpRng.bd)); const Pel* refPel = refBuf.buf - refBuf.stride - 1; Pel* dstPel = m_filteredBlockTmp[2 + m_iRefListIdx][compID] + dstBuf.stride + 1; for (int w = 0; w < (width - 2 * BIO_EXTEND_SIZE); w++)

How about enabling cache "true" in InterPrediction::xPredInterBlk only when dmvrWidth == 0?

The default value of dmvrWidth is 0 for this function call.

dmvrWidth is equal 0 for xPredInterBlk call in xFinalPaddedMCForDMVR, it is non zero only in xinitMC Need to add seperate variable to differentiate the predInterBlk called from DMVR or not.

you can enable cache "true" in InterPrediction::xPredInterBlk only srcPadBuf == NULL