id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
36	Floating-point QP not working	yyasugi		"
Version: HM-16.6-JEM-4.0

I noticed encoding failed with floating point QP in most cases.
The encoder was terminated by accessing an array with index -1.

It would seem that NUM_QP_PROB is not enough and TComStats::aaQPUsed runs out of space during encoding.

The issue seems to be fixed by increasing JVET_B0039_INC_NUM_QP_PROB from 7 to 14 as its comment says, but I'm not sure what value is appropriate.

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Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00000000004b5b36 in TEncSbac::loadContextsFromPrev (this=0x7ffe173f3980, apcStats=0x83b8670, eSliceType=B_SLICE, iQPIdx=-1, bFromGloble=false, iQPIdxRst=-1, bAfterLastISlice=false)
    at /.../source/Lib/TLibEncoder/TEncSbac.cpp:3273
#1  0x0000000000456a2e in TEncSlice::encodeSlice (this=0x7ffe173f66e0, pcPic=0x2ba23b668010, pcSubstreams=0x11902a80, numBinsCoded=@0x7ffe173d0680: 0, alfParam=...)
    at /.../source/Lib/TLibEncoder/TEncSlice.cpp:1290

"	defect	closed	minor	HM-16.6-JEM-4.1	JEM	HM-16.6-JEM-4.0	fixed		ksuehring XiangLi jvet@…