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Author Topic: Idiots guide to OpenDCP  (Read 56425 times)

chrismilton

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Idiots guide to OpenDCP
« on: August 31, 2011, 07:37:05 AM »
Hi

I have just downloaded openDCP for OSX. I was wondering if there is some sort of idiot proof user guide? I have been trying to make DCPs of some simple final cut pro projects but after using the option to export using quicktime conversion (jpeg2000 setting) openDCP still doesnt seem to recognize the project as something it can open? A step by step guide for simple operation would be really helpful, has anyone made such a guide?
I also have other software at my disposal, apple compressor, mpeg streamclip, adobe media encoder.

Any help would be much appreciated.

Chris

Terrence Meiczinger

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Re: Idiots guide to OpenDCP
« Reply #1 on: August 31, 2011, 09:15:49 AM »
There is some documentation for OpenDCP on the google site under the Wiki section as well as general information on this site. The issue you are having is that quicktime doesn't created DCI compliant JPEG2000 images, nor does it perform the XYZ color conversion. You need to export as RGB TIFF.

boontech

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Re: Idiots guide to OpenDCP
« Reply #2 on: August 31, 2011, 02:44:33 PM »
I made a more simple instructions for people who have been asking more for instruction, its based around what i use it for but has instructions for video and images. You will need Quicktime 7 as this will let you export video to single Tiff images.

You can get my instructions here http://dl.dropbox.com/u/4004242/OpenDCP%20creation.pdf

Parneix

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Re: Idiots guide to OpenDCP
« Reply #3 on: October 06, 2011, 10:00:09 PM »
Hi,

The link to the file (hosted in a DropBox folder) is broken. Is there, by any chance, another mean to get the PDF? I would very much like to consult it.

Thanks a lot,

P.

boontech

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Re: Idiots guide to OpenDCP
« Reply #4 on: October 09, 2011, 10:06:53 AM »
sorry, it had been some time so i thought you had got it,

http://dl.dropbox.com/u/4004242/OpenDCP%20creation..pages

siroma

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Re: Idiots guide to OpenDCP
« Reply #5 on: November 28, 2011, 02:45:29 PM »
New here.. I'll like that IDIOTS GUIDE but seems link is broken again. Thanks

Coeur Noir

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Re: Idiots guide to OpenDCP
« Reply #6 on: November 30, 2011, 07:21:45 AM »
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« Last Edit: November 30, 2011, 07:25:26 AM by Coeur Noir »

tray

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Re: Idiots guide to OpenDCP
« Reply #7 on: December 14, 2011, 03:38:56 AM »
The basics are fairly simple.  I just went through a 24fps 2K trailer edit that needed to be released for our upcoming stereoscopic animated feature. 

A couple of things to keep in mind: 

The DCI compliant aspect ratios for 2K are:
2048x858 SCOPE
1998x1080 FLAT
24FPS

If you're releasing to theater chains, they are VERY picky about compliance ... especially the naming convention.  OpenDCP does a "great" job of title generation, but you have to remember to complete every field.  Here's how the naming must work in order to not be rejected:

NAME-OF-MOVIE_FTR-2_F_EN-XX_US-GB_51-EN_2K_ST_20111213_FAC_i3D_OV

Note that each "section" is separated by an underscore (spaces are NOT permitted) and supplemental information is added via a hyphen.  All CAPS is preferred.

Film Type: NAME-OF-MOVIE is the title of the film/clip and is restricted to 14 characters
Content Type: FTR or in my case TRL1-3D
Projector Aspect Ratio: F (F=FLAT, S=SCOPE, C=Full Container)
Language: EN-XX (XX indicates no subtitles)
Territory and Rating: US-GB  (my trailers are releasing across Canada to a General audience, thus CA-G)
Audio Type: 51-EN (indicating 5.1 in English)
Resolution: 2K
Studio: ST (OpenDCP has a list of studios, you'll have to manually change the studio info if you're an indie)
Date: 20111213 (YYYYMMDD)
Facility: FAC (restricted to 3 characters, this is the facility that created the DCP)
3D spec: i3D (use 2D if not 3D)
Package Type: OV

You can find more detailed information at: http://www.dcimovies.com/

I've found that OpenDCP works with TIFF and DPX/Cineon (using DPX extension) files.  While applications like Adobe After Effects can convert to XYZ color space, it's faster and easier to let OpenDCP do it.

Here's my workflow:

Uncompressed QT of Left + Right eyes into Premiere (had DPX sequences but opted for QT for efficiency)
Edited/Mixed (5.1 as mono channels...total of 24 channels) to a 1:28 trailer in s3D
Exported 5.1 output as 6 mono WAV 24bit 48KHz files
Imported Premiere sequence into AfterEffects
Cleaned up 3D in AE, added graphics, flying logos etc
Rendered out of AE as RGB (Trillions of Colors) TIFF sequence (both left and right eyes)

From OpenDCP here's what I did:
JPEG2000 Tab
Encoder: OpenJPEG
Profile: Cinema2K
Frame Rate: 24
Overwrite Existing: Checked
Stereoscopic: Checked (uncheck if not stereo)
Bit Rate: 250 mb/s (150 for non-stereo)
Color: sRGB
XYZ Conversion: Checked
DPX Logarithmic: Unchecked (not sure what this is for or why I'd use it...but it converts the color space in a bad way - Maybe Terrence can explain when/why this would be used??)
The rest of the JPEG2000 tab is self-explanatory

MXF Creator Tab
Source: JPEG2000 (note...there is a MPEG2 and WAV option for conversion to mxf)
Package: mxf interop (seems this is the "safe" choice if you don't have a specific reason for SMPTE)
Frame Rate: 24
You have to create an mxf for both the video and audio of your DCP.
When you select WAV as Source, you have the option of working with Stereo, 5.1, and 7.1
The rest of MXF Creator Tab is self-explanatory

Subtitles Tab
I ignored this as I didn't have subtitles, but it's pretty easy to figure out what's required

DCP Package Tab
Use the Title Generator to help create the first pass at the title
I copied the generated title into NotePad and then edited it as per above
Annotation: I'm not sure what this field is for, I put the title of my movie here, in CAPS (no spaces) and kept the _CPL intact
Issuer: I reused the 3 letter abbreviation from Facility in the naming convention, otherwise unsure of what to put here
Add XML Digital Signatures: Checked (my understanding is that this is used to confirm the package has not been altered in any way)
Reel Annotation: Again, not sure what this field is actually for, I put the title of the movie here again
The rest is self-explanatory

Hope this helps a bit from a newbie perspective!  Perhaps Terrence can explain what Annotations are and why/how they're used?  And a little clarification on the DPX Logarithmic color space option would be great too (i.e. why/when)!

Thanks to the team that created OpenDCP - what an amazing program.

Terrence Meiczinger

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Re: Idiots guide to OpenDCP
« Reply #8 on: December 14, 2011, 09:25:53 AM »
Annotations are used to provide a human readable description of what is in the DCP. They are optional, but should just contain a description of your DCP, reels, etc. Their content is completely up to you.

DPX has two ways to store color - linear and logarithmic. If your DPXs are linear uncheck, if logarithmic check. It depends on how your application created them. There is no easy way for OpenDCP to determine this automatically.

If you are creating content directly from After Effects, check out Fnord's J2K plugin. It will created XYZ DCI compliant JPEG2000 images and hopefully save you time.

http://www.fnordware.com/j2k/

tray

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Re: Idiots guide to OpenDCP
« Reply #9 on: December 14, 2011, 12:52:41 PM »
Thanks! Will try the plugin next go-around.
Unfortunately we were rejected this morning.  The lab found a number of issues with the DCP wrapper and won't let the trailers pass.  I don't see any way of adding an attachment to these posts...but will email you the files (excluding the mxf files...unless you need them, in which case I can dropsend them to you). 
I'm unclear as to whether it's operator error (me) or an application error (OpenDCP).  Regardless, the end result is having to pay the lab to re-wrap the DCP packages from the mxf files...while hoping the mxf's are acceptable. 
Will update you again when I know more.

Here's what the lab reported to me via email this morning:
Quote
We have the content, but I am afraid have all failed QC. Will not load to a server and Wailua testing indicates "HASH errors"
As far as QC checklist we really donlt have anything special for outside provided DCPs.
We run through WAILUA testing which will usually reveal any flaws that would cause failure in most digital cinema servers in use in the field. We also load and play(usually on Doremi server) and look for audio and visual anomolies. Other minor flaws are also reported such as lack of or excess buffer-leader.
In this case the report of "HASH ERRORS" still does not pinpoint the root cause of error.
We could conduct furthur analysis, but that would entail rewrapping each DCP. Would likely correct it if we rewrap on Wailua, but we may not find out what the actual flaw or flaws were.

tray

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Re: Idiots guide to OpenDCP
« Reply #10 on: December 14, 2011, 12:57:04 PM »
Just received another message from the lab:
Quote
Several errors found during WL Test, including: "Screen Aspect Ratio not defined", "Schema Check Failure", Unknown Elements", and "XML Parser errors". Also, trailers fail to upload to servers.

The "Screen Aspect Ratio not defined" must be an XML thing.  The title generator was used to provide the info...ah...but was edited by me by hand.  Hmmmm...most likely a discrepancy between the XML files then???  No?  Anyway, aspect was 2K F and 2K S

Wolfgang Woehl

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Re: Idiots guide to OpenDCP
« Reply #11 on: December 14, 2011, 01:21:08 PM »
Tray, if you can post the CPL, PKL and ASSETMAP somewhere.

Terrence Meiczinger

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Re: Idiots guide to OpenDCP
« Reply #12 on: December 14, 2011, 01:32:54 PM »

tray

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Re: Idiots guide to OpenDCP
« Reply #13 on: December 16, 2011, 03:28:36 AM »
Interesting.  Was actually generated as MXF Interop and not SMPTE.

I will post the OpenDCP files up to a server over the next day or so.  Will also post the "corrected" and re-wrapped DCP package generated by the post facility out of LA.

tray

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Re: Idiots guide to OpenDCP
« Reply #14 on: December 16, 2011, 03:29:57 AM »
Sorry...late at night and bad use of terminology...for clarification I didn't mean "generated" but rather "created" 24 fps as mxf interop.
Thanks!

dcinemaforum.com

Re: Idiots guide to OpenDCP
« Reply #14 on: December 16, 2011, 03:29:57 AM »