When encoding, nQP and QP is outputed in the console. nQP means the nearest QP to the step size (JCTVC-G382), and have different value with QP only when the option AdaptiveQpSelection(-aqps) is enabled. However, when LCU level rate control is enabled, nQP is different from QP for every frame, including I frames.

For current HM software, when LCU level rate control is enabled, the output value of nQP is the QP of last LCU in current frame. The QP of last LCU in current frame should not be assigned to TComSlice::m_iSliceQpBase.

The following code in the function body of TEncSlice::compressSlice should be removed:

#if ADAPTIVE_QP_SELECTION
      pCtu->getSlice()->setSliceQpBase( estQP );
#endif

After removing these code, all of output information in console remain the same except nQP value in RA and LD cases.

ASR on JEM-5.0.1 is unable to work.

TAppEncoderStatic: ./source/Lib/TLibEncoder/TEncSearch.h:411: Void TEncSearch::setAdapt iveSearchRange(Int, Int, Int): Assertion `iDir < MAX_NUM_REF_LIST_ADAPT_SR && iRefIdx<Int(MAX_IDX_ADAPT_SR)' failed.

TEncSlice.cpp:line 570

for (Int iDir = 0; iDir <= iNumPredDir; iDir++)

This line should be changed as

for (Int iDir = 0; iDir < iNumPredDir; iDir++)

In addition, JEM-5.0.1 does not have the --MinSearchWindow command line option. In HM, it is implemented in the changeset 4554. ​https://hevc.hhi.fraunhofer.de/trac/hevc/changeset/4554

In vertical SSP, it seems the WS-PSNR weighting table is not complete. The generated weighting image for vertical SSP is shown as below. The weighting of the south pole disappeared.