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» Film-Tech Forum ARCHIVE   » Operations   » Digital Cinema Forum   » DCP format naming convention needs to be updated

   
Author Topic: DCP format naming convention needs to be updated
Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 03-06-2013 07:10 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
So when a new format (picture or sound) is either adopted or at least introduced on a major release...who is responsible for adding the identification to the DCP naming lexicon?

I see that OZ has the sound format "111_HI_VI" as one of its version files. I presume that "111" is Barco's Auro 11.1 (it is the only thing that would make sense). How about Dolby Atomos? What would that file have for the sound format?

And then there is the HFR stuff. Is it sufficient to just use the "48" designator? Because there are data rates involved too. Hobbit used a 450MBs but subsequent systems are aiming at 500MBs. Hopefully, the data rate will not matter in the long run...all systems will run what is available. But for now, all systems have geared up for 450MBs because they had to.

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Dominic Espinosa
Phenomenal Film Handler

Posts: 1172
From: California, U.S.A.
Registered: Jan 2004


 - posted 03-07-2013 10:17 AM      Profile for Dominic Espinosa   Email Dominic Espinosa   Send New Private Message       Edit/Delete Post 
I would suspect the "codes" are going to get even more convoluted in a short time with all the new technologies.
The problem being, the file names are getting long. Being that most OS's are Linux the filename limit is 255 characters for most FS types.

In reality, they should probably just name the files with the most basic of information and provide all the other details inside the CPL.

I'd rather have:
OZ_CCAP_OV-DOMSETIC.cpl.xml and such then have all the relevant data inside the file.
I personally feel that with only minor exceptions the rush by all the manufacturers to roll out their digital products, so as to be competitive, stunted the development of sensible interfaces and smart standards.
Of course now we're all deployed, several versions of DCI later, and backward-compatibility needs to be considered. I guess it would be impractical to change it now.

So I suppose we're stuck with it.

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Frank Cox
Film God

Posts: 2234
From: Melville Saskatchewan Canada
Registered: Apr 2011


 - posted 03-07-2013 10:31 AM      Profile for Frank Cox   Author's Homepage   Email Frank Cox   Send New Private Message       Edit/Delete Post 
I've never found a way to see the whole filename on my GDC server when ingesting from a hard drive. This creates a challenge when the only difference is 71 or 51 near the end of a long filename because it's past the end of the column length. Fortunately, 51 is before 71 alphabetically so I can figure it out from that, but still...

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Geoff Power
Film Handler

Posts: 38
From: Pershore, Worcs, UK
Registered: Apr 2012


 - posted 03-07-2013 10:51 AM      Profile for Geoff Power     Send New Private Message       Edit/Delete Post 
Agree with all the above. On DoReMi I can only briefly see the full filename when I hover over it. Trying to work out why a KDM is failing to activate can be a real pain when there may be only a small character difference. And as Steve Pike recently observed, some films such as Hobbit can have upwards of 20 assets to choose from which makes life stressful at times.

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Mike Blakesley
Film God

Posts: 12767
From: Forsyth, Montana
Registered: Jun 99


 - posted 03-07-2013 11:36 AM      Profile for Mike Blakesley   Author's Homepage   Email Mike Blakesley   Send New Private Message       Edit/Delete Post 
I just wish they would ALWAYS put the actual name of the movie first, not some stupid acronym like "GH" or "PW3" or whatever. Also, if it's a special thing for a chain -- put the name of the chain first, so everything for Regal is listed in the same place.

What'd be even better is if you didn't even need to see all the file names. On the server there should be a feature where you can set it up to ignore what you don't need, like (in our case) 7.1, OCAP, Dbox, 11.1, etc. and just present you with a list of what you can actually use.

Clearly the whole thing was designed by engineers without being run through whatever department is supposed to make things user-friendly.

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Carsten Kurz
Film God

Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009


 - posted 03-07-2013 05:09 PM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
They are currently working on a metadata addition at isdcf - the same guys that maintain the digital cinema naming convention.

http://isdcf.com/papers/ISDCF-Doc6-Composition-Metadata-Guidelines.pdf

- Carsten

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 03-07-2013 06:37 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
With Dolby, you can see whole shebang, if you widen the columns or look at its "properties".

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Tom Wienholt
Master Film Handler

Posts: 371
From: Towson, MD, USA
Registered: Dec 2002


 - posted 03-07-2013 09:51 PM      Profile for Tom Wienholt   Email Tom Wienholt   Send New Private Message       Edit/Delete Post 
With GDC, in my experience, you can also see the whole thing by hitting the "expand" button.

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Carsten Kurz
Film God

Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009


 - posted 03-08-2013 04:21 AM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
Doremi as well - if you just hover over the filename. However, not so easy with the DCP-2000 touchscreen models.

- Carsten

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Wolfgang Woehl
Film Handler

Posts: 31
From: Munich, Germany
Registered: Apr 2012


 - posted 03-08-2013 03:04 PM      Profile for Wolfgang Woehl   Author's Homepage   Email Wolfgang Woehl   Send New Private Message       Edit/Delete Post 
Steve, as for your original question: The naming convention is on ISDCF's plate. At the last meeting it was discussed and there's an effort on the way to amend and update the nomenclature. Might take a while but it will happen.

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