I'm almost to the conclusion that this whole series on DVD is jacked. Running the below clip through AVISynth with the following TFM line results in frames that look like low-res crap. If I create an override file and force the bad frames to be matched to their "c" combination, then the frames return to their true full-res glory. But why is this the case? Were these DVD's just authored incorrectly? Is there ANY way to automatically compensate for this behavior in a script or am I stuck hand-patching frames?
example override file command for bad frame:Code:TFM(slow=2,pp=7,mode=3,mi=70,cthresh=8, ovr="E:\Old Computer Files\Video Editing Tools\MeGUI_2624_x86\avisynth scripts\TMNT2k3\TMNT_xmas.txt")
EXAMPLE CLIPCode:13953 c
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There are problems with the source ; aliasing and some field blending
Some sections don't have a clean match manually ; and many frames have aliasing to begin with - hand patching won't work alone unless you mean photoshop or extraordinary measures . overrides will not fix this alone
Also there are some 29.97 sections - you'd have to make it vfr to make it perfect
I think you're totally right. This series is a stellar example of creating a cartoon specifically for interlaced viewing with no thought of the progressive future.
Many of the problems can be hand-patched, however. And by that I mean the use of overrides to find the best (not necessarily perfect) field match and/or replacing the current "bad" frame with prior or next frames if the neighbor is otherwise identical, but "good". For those field blends and orphaned fields I've just been replacing those bad frames or simply blending them(not ideal).
I was hoping beyond hope that there was some hidden key to automate the processing that I was missing. Looks like there's only the hard way unless someone else has an insight.
I didn't look too closely but try:
Mpeg2Source("TMNT2k3clip.demuxed.d2v", CPU2="ooooxx", Info=3) QTGMC() Dup(threshold=6, blend=true) TDecimate(mode=1, Cycle=10, CycleR=6)
Last edited by jagabo; 8th May 2018 at 13:12.
When it comes to the frame pattern, have you (either of you) seen anything like it before? When the sequence starts going bad it's very often of the pattern 1-2-3-3. So every fourth frame is a duplicate of the prior, but bad. It doesn't seem to conform to a normal telecine pattern, but like poisondeathray said many sequences are also truly 29.97fps. It's a crazy mishmash.
EDIT: Sorry, I meant that the first of the frame 3's is usually the bad one. It's then followed by a good frame 3.
Last edited by SaurusX; 8th May 2018 at 15:57.
It's quite common for cartoons to be "shot" on film, telecined, then edited as video. When shots are sped up or slowed down you get problems like those you are seeing. Then credits and titles are often overlaid as 30i.