Monday, February 6, 2017

Re: [Avid-L2] Pulldown Extraction

 

Hey Martin:

One way to do this was capture your footage into a 29.97 project, then import that bin into a 24p project. If you cut the clips into a 24p timeline they will have motion adpaters which you can promote to Timewarps in the motion effect editor.  You can then adjust the pulldown cadence parameters to try different types of pulldown removal -- hopefully finding one that works for your camera.

Cheers,

--Michael

On 2017-02-06 11:21 AM, martin@MartinNelson.com [Avid-L2] wrote:
 

I've never been clear on the etiquette regarding double posting here and on Avid's forum. Sorry if I've broken some rule; I was raised in a barn.


I know I've seen this covered before, but, now that I need the information, a forum search or google search brought me nothing useful. So, if someone could point me in the right direction, I'd appreciate it. And please forgive me if I'm flogging a dead horse ("Media Composer" + "flogging a dead horse," interestingly, brings up 82 discrete hits on Google).


I shot last weekend with an old consumer HDV camera (the Canon VIXIA HV40). I had it set for 23.976 fps, or, rather, to something called 24F, which I remembered—apparently incorrectly— as being true 23.976 (herewith to be referred to as 24). But I can't capture it in a 24 fps project. I got two error messages:


"DigitizeWindow::ActivateDevices StartPassthrough failed with ePSIsStarting." and then

"PMDIOVideoFifoStream::AllocateMemory - setup sizes are incorrect - m_videoPageSize: 512, m_videoBlockSize: 512, m_videoFrameSize: 0"

If I attempt to capture into a 29.97 project, it does so happily and I get something interlaced and with duplicated frames suggesting a 2:3 pulldown. I am capturing, by the way, via HDMI through the Black Magic Intensity Pro 4K.


I had other, newer, better cameras on this shoot capturing at 24 and I would like my project to be in 24. So, my question, finally, is

Can I, and if so how do I, convert my HDV footage to true 24 fps? 

I am willing to sacrifice the audio, but would like the footage to remain at correct speed so I can sync it to my master audio. Obviously, if I could keep the original audio to aid in manually syncing, that would be great, but, again, not a deal breaker. And I am prepared to capture the footage and then do the conversion outside of Media Composer if that's the best option.


Thanks,


Martin


System Specs: 

Early 2009 Nehalem MacPro4,1, 2 X 2.6 GHz Quad-Core

OS 10.10.5

Samsung 850 EVO 1 TB system drive

32 GB RAM

ATI Radeon HD 4870 GRFX Card

Blackmagic Intensity Pro 4K, Driver: 10.8.2

Avid Media Composer v. 8.6.1

Adobe Premiere Pro CC 2015 v. 10.4.0

 


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Posted by: Michael Brockington <mbrock321@gmail.com>
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this is the Avid-L2

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