id summary reporter owner description type status priority milestone component version resolution keywords cc 202 If GOP size and intra period are same, decoder has mismatch secret9th "When I tested HM4.0rc1 using following TAppEncoder.exe -c encoder_randomaccess.cfg -c per-sequence/BQSquare.cfg -q 37 -g 16 -f 17 -ip 16 I got mismatch for decoder. (log is attatched) Based on the simple analysis, it seems that gop size estimation at decoder is a source of mismatch. In xGetNewPicBuffer(), gop size is estimated by assuming gop size is POC gap between first and second picture (P or B). However, when gop size and intra period are same, gop size is wrongly estimated as 0. One simple solution is to fix the value of variable m_iMaxRefPicNum such as 16. This is similar approach to H.264/AVC, but cost huge memory allocation in decoder. Need to find better solution for this. " defect closed minor HM HM-3.4 fixed fbossen ksuehring davidf jct-vc@…