I am try the code in branch HM-4.1-dev. I found there some bug. In the Encoder, when encode IDR, the POC is prev_POC+1, but Decoder assume thet zero. So G1002_RPS will hit some bug.

my cfg:

DecodingRefreshType : 2 GOPSize : 1 Frame1: P 1 1 0.442 0 2 1 1 -1 0 ListCombination : 0

my temp patch:

diff --git a/source/App/TAppEncoder/TAppEncCfg.cpp b/source/App/TAppEncoder/TAppEncCfg.cpp
index 2f11333..ef1b709 100644
--- a/source/App/TAppEncoder/TAppEncCfg.cpp
+++ b/source/App/TAppEncoder/TAppEncCfg.cpp
@@ -94,6 +94,7 @@ Void TAppEncCfg::destroy()
 #if G1002_RPS
 std::istringstream &operator>>(std::istringstream &in, GOPEntry &entry)     //input
 {
+  memset(&entry, 0, sizeof(entry));
   in>>entry.m_iSliceType;
   in>>entry.m_iPOC;
   in>>entry.m_iQPOffset;
diff --git a/source/Lib/TLibEncoder/TEncCavlc.cpp b/source/Lib/TLibEncoder/TEncCavlc.cpp
index 77a4820..dd1ad97 100644
--- a/source/Lib/TLibEncoder/TEncCavlc.cpp
+++ b/source/Lib/TLibEncoder/TEncCavlc.cpp
@@ -549,6 +549,7 @@ Void TEncCavlc::codeSliceHeader         ( TComSlice* pcSlice )
     {
       WRITE_UVLC( 0, "idr_pic_id" );
       WRITE_FLAG( 0, "no_output_of_prior_pics_flag" );
+      pcSlice->setPOC(0);
     }
     else
     {
diff --git a/source/Lib/TLibEncoder/TEncGOP.cpp b/source/Lib/TLibEncoder/TEncGOP.cpp
index 1662fbd..5392d3b 100644
--- a/source/Lib/TLibEncoder/TEncGOP.cpp
+++ b/source/Lib/TLibEncoder/TEncGOP.cpp
@@ -141,7 +141,7 @@ Void TEncGOP::init ( TEncTop* pcTEncTop )
 // ====================================================================================================================
 // Public member functions
 // ====================================================================================================================
-Void TEncGOP::compressGOP( Int iPOCLast, Int iNumPicRcvd, TComList<TComPic*>& rcListPic, TComList<TComPicYuv*>& rcListPicYuvRecOut, std::list<AccessUnit>& accessUnitsInGOP)
+Void TEncGOP::compressGOP( Int& iPOCLast, Int iNumPicRcvd, TComList<TComPic*>& rcListPic, TComList<TComPicYuv*>& rcListPicYuvRecOut, std::list<AccessUnit>& accessUnitsInGOP)
 {
   TComPic*        pcPic;
   TComPicYuv*     pcPicYuvRecOut;
@@ -286,6 +286,9 @@ Void TEncGOP::compressGOP( Int iPOCLast, Int iNumPicRcvd, TComList<TComPic*>& rc
         pcSlice->setSliceType(P_SLICE);
       }
 #endif
+    if (getNalUnitType(uiPOCCurr) == NAL_UNIT_CODED_SLICE_IDR)
+        iPOCLast = 0;
+
       // Set the nal unit type
       pcSlice->setNalUnitType(getNalUnitType(uiPOCCurr));
       // Do decoding refresh marking if any 
diff --git a/source/Lib/TLibEncoder/TEncGOP.h b/source/Lib/TLibEncoder/TEncGOP.h
index 9ab1c3b..c3cfb45 100644
--- a/source/Lib/TLibEncoder/TEncGOP.h
+++ b/source/Lib/TLibEncoder/TEncGOP.h
@@ -129,7 +129,7 @@ public:
   Void  destroy     ();
   
   Void  init        ( TEncTop* pcTEncTop );
-  Void  compressGOP ( Int iPOCLast, Int iNumPicRcvd, TComList<TComPic*>& rcListPic, TComList<TComPicYuv*>& rcListPicYuvRec, std::list<AccessUnit>& accessUnitsInGOP );
+  Void  compressGOP ( Int& iPOCLast, Int iNumPicRcvd, TComList<TComPic*>& rcListPic, TComList<TComPicYuv*>& rcListPicYuvRec, std::list<AccessUnit>& accessUnitsInGOP );
 #if TILES_DECODER
   Void xWriteTileLocationToSliceHeader (OutputNALUnit& rNalu, TComOutputBitstream*& rpcBitstreamRedirect, TComSlice*& rpcSlice);
 #endif

IntraPeriod : 8 DecodingRefreshType : 2 GOPSize : 1 Frame1 : P 1 1 0.442 0 2 1 1 -1 0 LoopFilterDisable : 0 # Turn off LF will work fine

Decoder message below

Short-term reference picture with POC = 8 is lost or not correctly decoded! inserting lost poc : 8 copying picture 7 to 8 (9) Assertion failed: 0, file ..\..\source\Lib\TLibCommon\TComLoopFilter.cpp, line 553

This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information.

HM 5.0 decoder crashes in AI_HE configuration in sequences Kimono,ChinaSpeed,SlidShows at QP=12 with the following assertion failed message:

Void TComInputBitstream::read (UInt uiNumberOfBits, UInt& ruiBits) {

............. assert(m_fifo_idx + num_bytes_to_load < m_fifo->size()); .............

}