id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc 470,4x4 Inter CUs with JVET-O0050 (SCIPU),bheng,,"Prior to JVET-O0050, any 4x4 CU was inferred to be INTRA predicted (or IBC). This prevented any 4x4 INTER prediction. After JVET-O0050, any CU within a modeType == MODE_TYPE_INTER constrained region must be inter coded. This would include any 4x4 CUs. Meaning the previous approach for preventing 4x4 INTER does not work in this case. There do not appear to be any new checks in Section 6.4.1 through 6.4.3 to prevent 4x4 CUs in MODE_TYPE_INTER regions. So, it would appear that 4x4 INTER prediction has been accidentially reintroduced. Assuming it was not intentional for JVET-O0050 to reintroduce 4x4 INTER prediction, additional checks should be added to the ""Allowed Split Processes"" in Section 6.4 to prevent this. ",defect,closed,major,,spec,VVC D6 vE,fixed,,ksuehring bbross XiangLi fbossen jvet@…