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HD and UHD ( 2K+ ) Digital Cinema
Various topics: HD, UHD (2K / 4K) Digital Cinema acquisition to distribution.


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Old September 15th, 2009, 04:43 AM   #1
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Need help making a DCP (in 3D!)

Hey there folks

I have a situation where I need to make a DCP for presentation of a film on a D Cinema server. I have the film as Cineformed AVI files at 1920x1080 30p. It's actually in 3D too; so will need to make a 3D DCP.

I tried to do this about 18 months ago and found that there were no cheap or simple tools available for a desktop PC and that I had to ask a mastering lab like Technicolour to do it!

However I do recall reading that Doremi released a free tool to do this a little while back. Just looked at their website though and couldn't see any such thing.

Does anyone know of a cheap and simple way to do this? It's for a festival screening, so there's no real money involved :(

Thanks in advance

/ben
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Old September 15th, 2009, 07:13 AM   #2
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There is a plugin for FCP on Mac (the Quvis Wraptor plugin not so cheap and not more available) but you could find some company who has it and will accept to do the transfer for you ?
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Old September 15th, 2009, 07:18 AM   #3
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and you can look at here
Fraunhofer IIS easyDCP_Creator
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Old September 15th, 2009, 07:36 AM   #4
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or the (almost) recipe to create a DCP file
"There are two Print resolutions for D-Cinema, 2k (2048x1080) and 4k (4096x2160), while most projectors are native 2k, they can downgrade and display 4k, likewise 4k projectors will be able to upcode 2k to 4k.

The image must fit inside the above resolution. The Common Theatrical Formats are for a 2K projector are 1998x1080 is a (1.85:1) Flat Print , and 2048x858 is a (2.39:1) Scope print. Scope will use the whole screen, while Flat is Pillar Boxed.

There are only two allowable frame rates 24fps and 48fps (48fps is restricted to 2k images only)

The color encoding must be in X'Y'X' color space, with 12 bit color (that's 36bits, in the MSwindow's per pixel notation!)





Once you have your image setup as above then it needs to be encoded in MJPEG200 format. Quite simply each frame is independently encoded as a JPEG2000 image file

This Video Only Stream then gets put in a MXF wrapper, and is now considered a 'Track' file

Audio is PCM (.wav format) 24-bit at 48.000 kHz or 96.000 kHz that is also put in a 'Track' file. Up to 16 Channels of audio per Track to be used concurrently. Different Langues must be in different tracks.

A Video Track, and A Audio Track ( ie only one language), get grouped together into a unit called a Reel. Tracks can be reused in multiple Reels (ie, two reels use the same video, but different audio/language tracks).

A group of Reels, linked together into a Composition (Movie, Trailer, Ad, etc). The Composition is defined in a XML document called a CPL (Composition Play List). The Reels are defined in this file too.

Every File has a UUID in its meta data. Along with the CPL, you must have a PKL file (Packing List) which is another XML doc, that lists every file's UUID, and a BASE-64 SHA-1 Hash of the file to detect any corruption or error in the file that occurs after "Production".





Now At this point you have a Movie/ad/trailer as a group of files. However this is still not enough. You have to put this on some type of media the D-Cinema can read, HardDrive, CD, DVD, etc. This dependant on the media its going on, and may have to change as you move the files around.

It is likely (except for very large Hardrives) that the file will not fit on a single CD. So you have to make another XML called a Volume Index File. It must appear on the root of the file system and be named "VOLINDEX.xml". You must have this file even if there is only one Volume.

You must also create a Asset Map, This is an XML file that lists all the files on the volume with there Real Filesystem path, The Size, any offset, and the UUID of the file, and which Volume is is on. This is what links the UUID's that the Projection system uses to the Physical files on the disk. It must be on the root of the filesystem and be named "ASSETMAP.xml".

Now you have a DCP (Digital cinema Packaging) that your Projection system should read and understand just like any other movie."
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Old September 15th, 2009, 07:42 AM   #5
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and if you really want the hard way
CommandLineTutorial - opencinematools - Command Line Tools DCP Tutorial - Project Hosting on Google Code

but not sure what 3d adds to the problem.
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Old September 16th, 2009, 12:07 AM   #6
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Hi

Doremi has only free DEMO, also You cannot make 30fps DCP as of today, no server would support this.
Your only option is 24fps stereo in 48fps stream.
Free tool you could try: opencinematools - Project Hosting on Google Code
If you can spend some then I would recommend easyDCP:Fraunhofer IIS easyDCP_Creator

Hope this helps a bit
-Kaspar
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Old September 16th, 2009, 09:06 AM   #7
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Thanks for the links Kaspar. This does look complicated though. Might be easier to find someone who already had the facility and get them to do it.

/ben
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Old September 16th, 2009, 02:16 PM   #8
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Hi

Send me a mail with specifics - maybe I can help for not so much ;)

-Kaspar
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Old September 16th, 2009, 02:37 PM   #9
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Kaspar

I don't have your email address, but I can tell you the film is 12 minutes 4 seconds long. I would supply Cineform AVI files at 8 bit 1920x1080; 3D so left and right eye files. The film is currently 30fps; I could convert that to 24 with twixtor fairly well if you can't also handle it.

My email is ben@redstar3D.com if you want to mail me back.

/ben
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Old June 14th, 2010, 05:03 PM   #10
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Hey Benjamin... were you successful in your research into low-cost DCP creation? I am at that point now too, with an invitation to screen our 3D short at a 2D festival in October. The theater is equipped with a MasterImage 3D system, but the theater folks don't know anything about how to prepare "the hard drive that gets plugged in."

I've written to MasterImage to get advice on how to prep the DCP for their system, but haven't heard back yet. And I'm concerned that any solution might be too costly for a no-budget short. But I really don't want to demonstrate 3D technology to the festival using anaglyph!

Any new thoughts or advice on where to look into low-cost DCP prep, other than above?

Thanks!
Drew
Scary Cow Productions
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Old August 27th, 2010, 02:58 PM   #11
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If you check out the 3D forum here at DVi you will find a few discussions on this topic. Creating DCP
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