Issues Digitizing 24P Advanced
by Norman
on
Nov 25, 2007 at 12:14:22 am
Hi there,
I'm having issues digitizing footage shot in 24P Advanced mode. When I set the Sequence Preset to 23.98 and the Capture preset to DV NTSC Advanced Pulldown Removal, I receive the message"Breaks in VFR/Pulldown Cadence were detected in [clip name] during the last capture attempt." The capture is results in the same message, and no clip is captured.
I've tried changing the sequence preset to 24P, and receive the same message.
When I change the capture preset to DVNTSC 29.97, then everything digitizes fine and I don't get this message. I don't understand why. My camera (DVX100B)is set to Scene File F6, which is 24P Advanced shooting mode and I am certain that is the setting the tape was shot on. I've tried digitizing many different tapes and all behave the same way, so it's not a problem with one particular tape shot at 24PA.
Does anyone have any idea why this is happening, and how I can digitize my 24PA footage properly as 23.98 with the Advanced frame pulldown? I've read through the instructions on this issue on Creative Cow Forum, and have tried following this advice. I'm sorry to ask a duplicate question, but none of it is working, or I've read it wrong...
Re: Issues Digitizing 24P Advanced by msacci on Nov 25, 2007 at 1:27:14 am
Couple of things, your seq preset has nothing to do with the capture, they need to be the same time base and codec to work together but if you change your seq settings it does nothing to the capture.
That preset should work but double check a couple of things
The FPS should be 29.97 w/ the Remove Adv Pulldown Checked
Then the captured footage should have a frame rate of 23.98.
In your above statement is the good capture coming in at 29.97? If so can you step through the frames and set the pulldown frames?
If this footage is 29.97 try the Adv Pulldown Removal under the Tools menu.
Re: Issues Digitizing 24P Advanced by curtisdp on Nov 25, 2007 at 5:22:52 am
Try capturing a small clip, just a couple of seconds (after the camera has started to record a shot but before it stopped) with the adv. pulldown removal setting and see if that works.
Also, its very important when shooting in 24pa to hit "rec check" on the dvx if the camera has gone into standby mode after you stop recording so the record head is advanced to a usable timecode (or when the camera has been paused a while in general). Otherwise you might have to capture clips that don't include multiple starts and stops.
Also, using capture now can give you the error you are reporting, are you using that or logging individual clips?
Re: Issues Digitizing 24P Advanced by Norman on Nov 25, 2007 at 8:38:53 am
Hi, thanks for responding.
Yes it works to capture just a small clip at 29.97 with Advanced Pulldown removal, and the footage comes in at 23.98 as expected. All is well. But the problem is I keep running into the message "Break in Advanced Pulldown Cadence detected," and clips won't capture.
Thanks for the info about Rec Check. Problem is with some of the tapes, it was all one shot for 60 minutes, so I'm assuming then that wouldn't be the problem.
I'm not using Capture Now, I'm logging clips individually.
Do you know what this message means and what to do about it?
Re: Issues Digitizing 24P Advanced by msacci on Nov 25, 2007 at 9:33:58 am
Natress has a cadence filter that may shed some light on your problem, it is one of his free filters. Run it on the footage captured at 29.97. see if there is a change at the problem spot.
Re: Issues Digitizing 24P Advanced by Norman on Nov 25, 2007 at 8:34:16 am
Hi Thanks for responding.
The FPS should be 29.97 w/ the Remove Adv Pulldown Checked
Yes, this is the setting I used. When the footage digitizes properly, it comes in at 23.98 as you mentioned.
The problem is that most of the footage will not digitize properly because of the message I keep getting, something like "Break in Pulldown Cadence detected" (original post tell the exact message). This message causes capture to stop. I have the option to Abort or Continue. If I choose continue, when the tape gets to the same place as before, I get the same message, I start all over again, and the clip never gets digitized. This happens at many points on many tapes.
I tried your suggestion of digitizing at 29.97, without Advanced Pulldown removal, then removing it through the Tools Advanced Pulldown removal. But when I do this, again I get the same message "Break in Pulldown Cadence detected," and the clip is not modified to 23.97.
So it seems the settings are right, it's just the Break in Pulldown Cadence thing. Do you know what this message means or what to do to fix it?
Re: Issues Digitizing 24P Advanced by curtisdp on Nov 25, 2007 at 5:59:13 pm
I've seen this problem with the situations I described, but not with one clip. It gives you the message on all the tapes? Did you reuse tapes or use low quality tapes? Are you using the same camera you shot on to capture? What kind of drive are you capturing to?
In any case you could still edit the material on a 29.97, though unless you have some other material that's already at 23.98. It will look essentially the same.
Re: Issues Digitizing 24P Advanced by Norman on Nov 25, 2007 at 6:09:47 pm
Hi Gery,
It gives the message at many points on many tapes. Don't know if it's every single one, but it's so many that it is making digitizing agonizingly slow. I did not reuse tapes, I used new master tapes Panasonic AY-DVM83MQ.
Also, though stopping and starting the shot perhaps is an issue in some instances, it's not always: right now I'm capturing footage from a performance that is 63 minutes in ONE LONG TAKE. I didn't start or stop the camera once and I still have the identical message "Breaks in pulldown cadence". Which is why I thought it might be a problem with my FCP digitizing settings...Also because other small clips on this tape I tried capturing and there is no start/stop and I still receive the message...
Re: Issues Digitizing 24P Advanced PS: Drop frames on 29.97 capture attempts by Norman on Nov 25, 2007 at 6:12:13 pm
PS Even now that I'm just trying to capture it normally without Advanced Pulldown, it's still reading one clip as two and giving the "Dropframe media detected" message, splitting the long take into two shorter clips.
Re: Issues Digitizing 24P Advanced PS: Drop frames on 29.97 capture attempts by curtisdp on Nov 25, 2007 at 6:28:46 pm
Sounds like you're going to have to work around the problem then unfortnately. Hopefully it's not the camera, but this is one of the reasons not to use 83 minute tapes if possible.
Re: Issues Digitizing 24P Advanced PS: Drop frames on 29.97 capture attempts by Tareco on Nov 26, 2007 at 11:08:52 pm
So true, logging and capture is the way to go for so many reasons.
But in cases with one enormously long camera take with no stops, I've logged anyway- dividing the massive take into smaller clips at spots with a rough camera move that would likely be deleted anyway. If the shot is a clean lock-off, you can still break it up, with 15-second or so overlaps to cover wherever edit points may be.
Re: Issues Digitizing 24P Advanced PS: Drop frames on 29.97 capture attempts by Countdown on Nov 27, 2007 at 3:31:45 am
I don't do 24pa so this is a long shot:
Are you getting the message that dropped frames were detected on the last capture? If so, that sounds like a storage drive problem. (If the storage drive isn't able to keep to speed then you'll get this dropped frames warning when there are no dropped frames on the tape and you'll get multiple clips, though usually not at the EXACT same place.)
If this is the case you could try capturing to a (different?) internal drive or a different external and see if it goes away.
If it's some other error message dealing with pa drop frame, then I'm talking about something completely different and you can ignore me.
Re: Issues Digitizing 24P Advanced PS: Drop frames on 29.97 capture attempts by Norman on Nov 27, 2007 at 4:28:05 am
Hi there,
Actually, I posted to the Cow about the message "Breaks in Cadence detected." however, before that I was getting the Dropped Frames message so you info is useful, thanks. I am actually capturing to an external drive. Maybe I"ll give it another shot capturing directly to hard drive.
Working with JPegs & 24P footage by Sara Jean on Jan 5, 2008 at 11:51:13 pm
Hello,
The current project I am working on has footage shot in 24P and jpegs of various images cropped at all different sizes on the sequence. When I exported the final sequence at 29.97 to a quicktime for DVD Studio Pro, the 24P footage looks great. The Jpegs however did not. They are warped and bowed. They are not pixelated. I am trying to create a DVD that with play on a NTSC DVD player. Are there any special settings or specific format the jpegs need to be in for FCP in order to look sharp and straight?
Thanks for your help!
You are adding on to a rather old thread on the forum. Suggest you start a new one so it appears right at the top of the heap. Also, make the subject more about the issue of the JPEG problem, and specify the format of 24p sequence you are working with.
There will be responders who know much more than I and can probably help!
