JVET-P0063: fix local dual tree on split condition

source/Lib/CommonLib/TypeDef.h

@@ -88,6 +88,8 @@
 
 #define JVET_P0111_CHROMA_422_FIX                         1 // JVET-P0422: Bug fix of chroma 422 intra mode mapping
 
+#define JVET_P0063_LDT_SPLIT_FIX                          1 // JVET-P0063: Fix local dual tree on BT/TT split conditions in inter coding region
+
 #define JVET_P0329_PLANAR_SIMPLIFICATION                  1 // JVET-P0329: simplify planar prediction by comparison removal
 
 #define JVET_P0516_PLT_BINARIZATION                       1 // JVET-P0516: PLT is always signaled when pred mode is euqal to 1 (intra mode) 

source/Lib/CommonLib/UnitPartitioner.cpp

@@ -435,6 +435,9 @@ void QTBTPartitioner::canSplit( const CodingStructure &cs, bool& canNo, bool& ca
   if( area.width <= minBtSize )                              canBv = false;
   if( area.width <= MAX_TB_SIZEY && area.height > MAX_TB_SIZEY ) canBv = false;
   if( chType == CHANNEL_TYPE_CHROMA && areaC.width * areaC.height <= MIN_DUALTREE_CHROMA_SIZE )     canBv = false;
+#if JVET_P0063_LDT_SPLIT_FIX
+  if( modeType == MODE_TYPE_INTER && area.width * area.height == 32 )  canBv = canBh = false;
+#endif
   if( area.height <= 2 * minTtSize || area.height > maxTtSize || area.width > maxTtSize )
                                                                                        canTh = false;
   if( area.width > MAX_TB_SIZEY || area.height > MAX_TB_SIZEY )  canTh = false;
@@ -443,6 +446,9 @@ void QTBTPartitioner::canSplit( const CodingStructure &cs, bool& canNo, bool& ca
                                                                                        canTv = false;
   if( area.width > MAX_TB_SIZEY || area.height > MAX_TB_SIZEY )  canTv = false;
   if( chType == CHANNEL_TYPE_CHROMA && areaC.width * areaC.height <= MIN_DUALTREE_CHROMA_SIZE*2 )     canTv = false;
+#if JVET_P0063_LDT_SPLIT_FIX
+  if( modeType == MODE_TYPE_INTER && area.width * area.height == 64 )  canTv = canTh = false;
+#endif
 }
 
 bool QTBTPartitioner::canSplit( const PartSplit split, const CodingStructure &cs )