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reverse telecine -- compressor/Cinema tools both leave interlacing

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elise london
reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 5:02:28 pm

Hi -- I am working with footage that looks like it has a 2:3 pulldown cadence.
good frame, good frame, bad frame, bad frame, good frame.
Tried Compressor's reverse telecine, also Cinema Tools reverse telecine.
Both produce a new file that still leaves one bad interlaced frame.

What's going on???Thx!


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Jeremy Garchow
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 5:52:52 pm

I'd stick with compressor. It's easier.

You are using the "reverse telecine" setting in compressor right?

What format is the original footage? SD or HD?


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elise london
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 5:57:47 pm

Thanks. Yes I would prefer to stay with Compressor too. Yes I am using the 'reverse telecine' option within compressor's deinterlace settings. The footage is SD.


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Jeremy Garchow
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 6:02:58 pm

And this is footage direct from capture scratch?

If so, make sure to single click on the clip thumbnail of compressor and in the a/v properties tab (I think that's what it's called, not by the computer) make sure that your source clip has a field Dom of lower.

Hard to explain, easy to show. Hope it helps.


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elise london
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 6:06:07 pm

Yes the source footage has a native field dominance of 'lower.' Not sure why this would matter?


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Jeremy Garchow
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 6:21:07 pm

Sometimes compressor guesses wrong and it doesn't process correctly. You chose lower field in the a/v properties of compressor?

Did you capture this footage? Is it an export from the timeline or is this footage right out of the capture scratch?


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elise london
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 6:30:14 pm

Yes it is footage straight from the capture scratch. Captured it from the DVX100 @ 24p.


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Jeremy Garchow
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 6:32:59 pm

And is it one long capture? Meaning is the cadence broken at any point?


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elise london
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 6:33:59 pm

Correct the cadence is not broken


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Jeremy Garchow
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 6:44:08 pm

I use this feature a lot and it works.

Are you sure the footage is 24p and not 24pA?


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elise london
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 6:50:27 pm

Yes pretty sure. But either way, I have a file in front of me with a pretty obvious cadence that is unbroken. good good bad bad good

Shouldn't Compressor be able to handle this?
What other options are there in Compressor -- what could possibly lead to one interlaced frame remaining?


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Jeremy Garchow
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 6:59:40 pm

Yes, Compressor can do this.

Things that can go wrong is that compressor isn't setup correctly.

Make sure the frame rate is set to 23.976, and that compressor is seeing the footage as lower.

How long is the file?


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elise london
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 7:01:13 pm

So strange. It's only about a minute and a half long.


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Jeremy Garchow
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 25, 2011 at 7:08:04 pm

If you upload the file somewhere, I can take a look for you.


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Alexander Kallas
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 26, 2011 at 11:17:44 am

[Jeremy Garchow] "f so, make sure to single click on the clip thumbnail of compressor and in the a/v properties tab (I think that's what it's called, not by the computer) make sure that your source clip has a field Dom of lower"

Just jumping in, 24p has no field order, so why mark as lower?

Cheers
Alexander


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Jeremy Garchow
Re: reverse telecine -- compressor/Cinema tools both leave interlacing
on Jun 26, 2011 at 1:07:26 pm

It's 24p recorded to tape which is 29.97. So it's 24p with pilldown that needs to be removed.

http://adamwilt.com/24p/#24pRecording


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