24P reg encoded wrong to tape or read problems on 25% of footage ALL frames interlace

rjcam

Active member
I recorded 16 dv tapes in one week all at one setting, 24P regular, with an almost new DVX100b camera.
75% of footage is correct - *2:3 pulldown inserted and recorded footage. And digitized like it's supposed to at 60i and I can remove the pulldown easily with CineTools either automatically and setting 'A' frames on clips where the 'A' frame was off.

For no known reason about one quarter (50GB of 220GB total digitized) of footage has interlaced artifacts clearly visible in all frames in CineTools, and FCP 6.0.2 viewer at 100% size. That's EVERY frame, not 2 interlaced and 3 clean. ALL frames show interlace problems.
CineTools can't handle them and 'skips' them. If I manually set an 'A' frame and have used every preset in CineTools, the footage either looks roughly the same or worse overall, but every once in awhile a part of a clip will have 4-7 clean frames and 1 interlaced.
What gives?*
I thoroughly understand this workflow and pulldown removal etc... And mostly the process works logically.
But not this problem. Can the camera freak out and screw up this bad, mashing up / interlacing / messing up all frames, sometimes for 35 minutes straight on 1 tape and then record correct afterwards?
ANYONE ever seen this problem or heard of anything like this?

I originally digitized FW out of a Sony DSR-11 DVCAM deck all the footage. I tried to re-digitize the clips using my HVX200 Camera ( I don't own a 100b) and I got the same problems.

Samples, very short and small, but original 3:2 pulldown full res SD, corrected CineTools removed version of same file, and one really bad file with all the frames messed up are posted here below. They play automatically in my Safari and Firefox browser on Macs and you could also download them and view them locally (they are literally 6MB to 11MB size I think - small!)

Video Problem Samples posted here:
http://rjfilms.com/doc_samples/
 
oh sh*t.
This might be quite bad for me.
I *think* I might have figured out what happened. Scene File dial 2 - "Flou" preset might have totally screwed this over.
I shot and intended to shoot this whole piece in 24P regular. At night, under fluorescent light fixtures I might have switched the scene file dial from f5 to f2 thinking that would give me a better corrected color under cruddy green lights. (the shot above followed night shooting and the theory is I forgot to switch the dial back to 24P at that point in the day).
Can just switching that dial pull me out of 24P mode? I appears the answer might be 'yes' but since I never owned a DVX I just rented one I am not 100% sure here. If so I think that totally sucks. I imagine they / someone might explain that the shutter speed and gamma is altered for flicker and can't shoot 24P blah blah blah. But if it automatically overrides a 24P setting a cam op made I think that's pretty lame. I guess even if you shoot for years and years with ENG cameras and film cameras you actually have to read manuals for certain items in toy cameras. I used to like Panasonic (small cams). Don't ask me what my opinion is tonight.
Can anyone verify that f2 Flou stock scene file on the back dial does ALWAYS pull the camera out of 24P? If so, then it looks like I am now the disgruntled owner of a mixed footage 24P 75% and 60i 25% final and raw footage ratios on the film.
And the NEXT question would then be, what now? What's the best way to conform 60i footage to 24P? I've never had to deal with this so I guess it's more research ahead of me.
But PLEASE someone chime in and let me know if the #2 FLOU dial setting would have been accountable for all this, automatically and always taking the camera out of 24P mode and putting it in 60i mode.
 
There is one other possibility.
I had something very similar happen to me but it was fixable. Here's the story:

I go to ingest a tape into a windows PC using Adobe Premier - and lo and behold some of the footage showed interlacing. I thought it was ruined, BUT...
Turns out it was some sort of "data timing" issue caused by how I stopped and started the tape during when I was recording.
The solution was that I had to cue up the tape to just AFTER the bad clips started - but only by a second or so. Then I had to hit PLAY from that point WITHIN the clip and start the capture.
This had to be done for each of the clips that were showing the "interlacing" errors.
It worked perfectly the first time.
I don't fully understand the exact technical nature of what went wrong - something about some type of "timing data" that gets encoded as it records.
All I know is this solution worked for other people who encountered this too.
I hope your scene switch kept you in 24P because then this should help.
If it got switched to 24i then I'm afraid I can't be of help there.

~Cheers
 
Hey thank you for writing this suggestion! I will definitely try this next.
I have tried to digitize with Mac/FCP/DSR11 deck
Mac/FCP/HX200 camera for playback
Mac/FCP/VX2000 sony camera for playback
Mac G4 Tower/Premiere/VX2000 camera
PC/Premiere/VX2000 camera
PC/SonyDVGate/VX2000 camera

and all of the above attempts have made this crazy interlace looking thing.

On a small brighter side, I have now gotten some pretty damn good results converting this 60i footage using Compressor at the highest motion settings in frame control. But it is taking forever...

But I will try your suggestion next! Thank you!
 
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