OK, So here goes:
Sorry for the blurry shots, but the panning scene shows the problem quite well...and apologies for the different frame for comparison. I haven't resized the images much smaller, because it smooths out the combing!
In RO Standard, clearly combing and no deinterlacing.
Same in ROHQ: (note MadVR says deinterlacing on!)
Incidentally seems a difference in levels too. (I'll have to get those BTB WTW test patterns out again!)
In RO Custom with LAV Video for decoding and aggressive option, with CUVID enabled:
Actually, with hardware/software deinterlacing disabled in LAV, but with aggressive option it still works OK (note MadVR says it now is deinterlacing):
So it seems the recent switch to undo the aggressive option in LAV in DVD doesn't work well for some videos. It seems fixing a problem has created a problem.
It's probably badly flagged video, but I do have a number of these clips that are affected. It's great that we now have LAV and MadVR for DVD so that I can actually sort the problem out, so thanks again JRiver team for that. (And of course madshi and nevcairiel who did the hard work!). A keyboard/remote toggle for aggressive mode may be helpful because it's obvious when it's present and a simple click of the remote/keyboard to fix it would be ideal.
SBR
PS Hope you guys are enjoying the Superbowl!
PPS Is there a way to do frame by frame advance or rewind in MC for comparison shots???