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24pA pulldown removal
So, on my last query about 24pA, many people refered me to the article at https://www.larryjordan.biz/articles/lj_dvx_capture.html. So I am about to recapture everything at 29.97 and then remove the pulldown after it is captured. One of my co-workers is trying to convince me that I will have to remove the advanced pulldown one clip at a time, and that if I try to batch it, it is not going to do it correctly. Is this true, or can I just highlight all of my clips captured at 29.97 and then go to TOOLS>REMOVE ADVANCED PULLDOWN? The guy telling me this is an animator and compositor, and does not really use FCP or 24pA, his example was with After Effects and regular 3:2 pulldown. He was showing me how you can set AE to guess the pulldown pattern in several different ways, like wwwss, wwssw, wssww…etc…and told me that (at least with telecined clips) you have to figure this pattern out on a per clip basis…but I don’t know if that pertains to 24pA and FCP, because it is a different beast and I don’t know about these ‘imbedded flags in the firewire stream’…I do hope that I don’t have to go through each clip individually; it would be nice to think that FCP is smart enough to look at them seperately on its own and determine which are whole and split frames.
Hope someone out there has an answer.
I hate 24pA,
Eli MavrosEli Mavros
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8 Replies
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I’m pretty sure that the dup frames are flagged with DV user-bits in 2:3:3:2 on the 100A, so you don’t have to worry about pulldown patterns. In fact, there’s no way to set this on FCP, so it must be being driven by the user-but flags.
John.
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Right, I know that there is not manual option to guess the pattern like you can with a 3:2 in AE, but I am pretty sure that you can choose to remove the 2:3:3:2 for individual clips rather than for the whole project…I am just hoping the FCP is analyzing each clip before it removes the pattern, rather than pulling frames out just based on the pattern of the first clip…because if you log and capture clips individually (which takes more time…but seems to at least make more sense to me when it comes to the onlining stage), then each clip is going to start on a different frame in the pattern, and if FCP only looks at the first clip in a batch and says “hey this is the pattern, I’ll take it out this way for everything” then I will run into problems…but I hope that you are right in that it is some information that is imbedded in the DV stream and tells FCP what’s what. It would make sense, since you don’t use cinema tools or seem to have many options when it comes to removing the 2:3:3:2.
Thanks.
EliEli Mavros
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You should probably just use the capture preset “DV NTSC 48 kHz Advanced (2:3:3:2) Pulldown Removal”
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I included a link in my first post (which like 10 people told me to look at when I posted a 24pA question earlier this week), if you read the link, it warns you against using that capture preset.
Eli Mavros
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I think the article is talking about people that make their own preset and try to use 23.98. the “DV NTSC 48 kHz Advanced (2:3:3:2) Pulldown Removal” preset IS set to capture at 29.97 and automatically remove the interlace frames to give you 23.98 clips.
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Be careful that it actually is 24pA. I made a gigantic mistake using the “Modify->Remove Advanced Pulldown” to a bunch of clips that were actually just regular 3:2 pulldown. The candence was off and so the media was completely ruined. I had to batch re-capture everything and then do a reverse telecine for each clip in Cinema Tools.
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I am positive that this footage is 24pA, but I know what a nightmare it can be if the camera person is not carefull. My company was doing some short promos that were shot with several different panasonic 24p cameras, and not all of the camera operators were using the same setting (nor did they make camera reports as to which setting they did use)…it was a real nighmare.
Anyhow, Guy you might be right what you say…but the article was only posted in December, and that 24 Advanced capture setting has been around for much longer than that. I don’t see why anybody would make their own setting when that exists in the Easy Setup…You might me right, but I don’t think that I buy it, I think that that article is talking about this very setting. It makes sense to me…so I am going to stick with the method that it suggests, but what I want to know is if once I do capture do I have to reverse the pulldown one clip at a time or can I batch them?
Thanks,
Eli -
You can batch reverse telecine in cinema tools. See the cinema tools manual.
Hopefully Noah Kadner(the author of the article) will see the thread and help sort this out…
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