id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
200	NULL-pointer crash of VTM 4.0.1rc1 in HDR config after JVET_M0428_ENC_DB_OPT integration	crhelmrich		"In getDistortionDb() introduced through JVET_M0428_ENC_DB_OPT, ''m_tmpStorageLCU'' is NULL in line

{{{
PelBuf tmpRecLuma = m_tmpStorageLCU->getBuf(tmpArea);
}}}

when activating option --''LumaLevelToDeltaQPMode''=1 for HDR coding during the encoder configuration.

The reason seems to be that the in-loop reshaping introduced through JVET_M0427_INLOOP_RESHAPER
is disabled when ''LumaLevelToDeltaQPMode'' is nonzero, see EncAppCfg.cpp:xCheckParameter(). Also,
the xCalDebCost() function seems to be called even if the M0428 related code is disabled via encoder
option --''EncDbOpt''=0 (which is the default).

I don't know how to fix this properly. Can the relevant developers please advise?

Sample commandline (you can use any input sequence, it seems):
-c D:\encoder_randomaccess_vtm4.cfg --LumaLevelToDeltaQPMode=1 -wdt 416 -hgt 240 -fr 60 -f 1 --InputBitDepth=8 -i D:\sequences\BQSquare_416x240_60.yuv -o ..\..\bqs.yuv -b ..\..\bqs.bin

Best regards,

Christian Helmrich"	defect	closed	critical	VTM-4.0.1	VTM		fixed	deblocking, reshaping	ksuehring XiangLi fbossen jvet@…