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Ticket Resolution Summary Owner Reporter
#68 fixed MV clipping bug in the sub-PU MPI default MV generation tech jicheng
Description

In HTM11, there is a MV clipping operation in the sub-PU MPI default MV generation, which is obviously a bug and should be removed to align with the WD. (This kind of bug was previously solved by NTT_BUG_FIX_TK54, but here it is introduced again by MPI_SUBPU_DEFAULT_MV_H0077_H0099_H0111_H0133.)

In TComDataCU.cpp, line 4499, the following coded should be removed:

clipMv( cMv );
#46 fixed Problem of all zero residual method in intra-picture tech jinheo
Description

I found a bug on A0087 document in HTM reference SW version 8.1 as well as 8.0. In the document, all zero residual method is only applied to inter-picture of depth. However, the method is only applied to intra-picture in both 3D-HTMv8.0 and v8.1.

Line 2995 of TEncSearch.cpp (HTM8.0) is bTestZeroResi |= pcCU->getSlice()->getIsDepth() && pcCU->getSlice()->isIRAP(); It should be fixed to bTestZeroResi |= pcCU->getSlice()->getIsDepth() && !pcCU->getSlice()->isIRAP(); It affects the coding performance of AI and CTC.

#56 fixed A bug caused by uncompressed InterDir in HTM10.0rc1 tech kaizhang
Description

A bug is found in HTM10.0rc1. Generally speaking, the original code tries to use InterDir to determine the prediction direction. However, InterDir is not compressed as MV and RefIdx. Thus a misalignment may occur. In some worse case, the codec may crash, although that does not happen in CTC. Attached please find a possible fix with macro HTM10RC1_FIX and the simulation results under CTC. There is a very minor difference (<0.001%) in the last column.

At line 4746 in TComDataCU.cpp, it should be #if !HTM10RC1_FIX

if( ucInterDir & 1 ) {

#endif

pcTextureCU->getMvField( pcTextureCU, uiPartIdx, REF_PIC_LIST_0, cMVField );

#if HTM10RC1_FIX

if( cMVField.getRefIdx() >= 0 ) {

#endif ...

At line 4775 in TComDataCU.cpp, it should be

#if !HTM10RC1_FIX

if( !tmpDir && ( ucInterDir & 2 )) {

#endif

pcTextureCU->getMvField( pcTextureCU, uiPartIdx, REF_PIC_LIST_1, cMVField );

#if HTM10RC1_FIX

if( !tmpDir && cMVField.getRefIdx() >= 0 ) {

#endif

Thank you!

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