id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
1235	Issue on poc derivation after JVET-S0081	forayr		"After JVET-S0081, prevTid0Pic is defined only if a picture with ph_non_ref_pic_flag equal to 0 has been send. However there is no constraint that the CVSS shall have ph_non_ref_pic_flag equal to 0.
Therefore, prevTid0Pic might not exist when decoding the pictures after the Irap at the beginning of a stream. In this case, predPicOrderCntLsb/Msb are not defined but are used on the following pictures of the sequence to derive PicOrderCntVal.

Should we change the spec to allow prevTid0Pic to be a CVSS with ph_non_ref_pic_flag equal to 1 ?
Or should a CVSS have ph_non_ref_pic_flag equal to 0 ?"	defect	closed	minor		spec	VVC D10 vE	worksforme		ksuehring bbross XiangLi fbossen jvet@…