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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Digital Cinema Package

Siso said:
Hello everyone,

Im still waiting for compiled windows opendcp which will workin with 25fps in 3D too. But now I have another question. :)

Is possible make DCP in Cineasset from DoremiLabs and than play it on another machine (from another manufacturer)?

Thanks
Click to expand...

Remember, a 25fps 3D movie is actually going to be played back at 50fps. I haven't seen any servers specify playback faster than 48fps, but that doesn't mean they can't. Edit: I should add that AS-DCP will create 25fps and 30fps 3D files

Yes, if other server is DCI compliant, it will play the content made by CineAsset... assuming CineAsset makes a proper DCP.
 
Last edited:
I have some terrible news on SMPTE DCP creation.

In my investigation of its support on many different SMS's I have some to discover that current hardware will never be able to do more then 25fps.
So 30,50,60 are a no go.
This is not welcome news as the support for those frame rates are great for film festivals etc.

The extra frame rates are only likely to be available in the next generation SMS (The IMB, internal media block, in projector).

Yes I know, if it can do 48.. why not at least 30? Well, apparently, it just cannot.
very disappointing.

James Gardiner
www.cinetechgeek.com
 
hello everyone, i'm new here n new to dcp. i read all post n i don't understand how to make mpeg2 dcp. i want to make a mpeg2 dcp. i want to use open tool to make it.

ps- sorry for bad english
 
James Gardiner said:
I have some terrible news on SMPTE DCP creation.

In my investigation of its support on many different SMS's I have some to discover that current hardware will never be able to do more then 25fps.
So 30,50,60 are a no go.
This is not welcome news as the support for those frame rates are great for film festivals etc.

The extra frame rates are only likely to be available in the next generation SMS (The IMB, internal media block, in projector).

Yes I know, if it can do 48.. why not at least 30? Well, apparently, it just cannot.
very disappointing.
www.cinetechgeek.com
Click to expand...

Update,
Doremi DO support 30fps. They actually support pretty much every standard frame rate up to 30 in 2D and 3D. So thats well done for Doremi.

Anything over 30fps will come in the new SMS hardware some time next year. Ie 60fps content. I am actually very keen to see stuff shot right in 60fps.

James
 
on which format do you format your transport harddisks for the servers?? which one works best on which dcp server?
 
thankx for reply Wolfgang Woehl but i don't get any info about mpeg2 dcp. i know how to export movie in image sequence tiff or dpx but i don't know which one is use for mpeg2 dcp.

From avid we can export move to .mxf, can we use this .mxf file for dcp if not then what type of tool we need. i'm using after effect cs4
 
I've added a new tool called opendcp_j2k to the OpenDCP package. It is basically a stripped down image_to_j2k designed to only support digital cinema profiles. The main advantage is that it will support any frame rate. The input should be a 12-bit tiff in the XYZ colorspace. It doesn't support folders, so you'll want to wrap a script around it. It requires the OpenJPEG 1.3 library. It may work with v2, but I have not tried it.

Let me know of any issues.

http://code.google.com/p/opendcp/
 
Hellllp!!!!!!

I have created a working DCP with open cinema tools. Everything encoded fine without issues, however, the clip i take to the theatre on playback on a Sony 4K suddenly starts to drift out of sync at 2mins from the end. All is ok up to that point. Initially, I thought it could be a difference in the frame rate, but both audio and video have been working to 24fps. I am completely frustrated. What's very odd is no matter how many times I create the DCP it drops out of sync at the same place. Any Ideas??????

Just to make things clear. All is in sync on the original timelines.
 
Hi Wolfgang,

The Sony server seems to be fine as it plays other DCP's without fail or issues.

Here is the CPL

<?xml version="1.0" encoding="UTF-8"?>
<CompositionPlaylist xmlns="http://www.smpte-ra.org/schemas/429-7/2006/CPL">
<Id>urn:uuid:583e1a6a-76d1-42fb-8602-76661f6bcb60</Id>
<AnnotationText>SUMMERTIME7_FTR-1_S_EN-XX_UK-XX_51_2k_TIF_20100419</AnnotationText>
<IssueDate>2010-10-12T19:49:05+00:00</IssueDate>
<Issuer>antony@localhost</Issuer>
<Creator>OpenCinemaTools - mkcpl 1.1.2</Creator>
<ContentTitleText>SUMMERTIME7_FTR-1_S_EN-XX_UK-XX_51_2k_TIF_20100419</ContentTitleText>
<ContentKind>feature</ContentKind>
<ContentVersion>
<Id>urn:uuid:d63fcb91-fddc-40b2-be23-3d8db85cdef2</Id>
<LabelText>d63fcb91-fddc-40b2-be23-3d8db85cdef2</LabelText>
</ContentVersion>
<RatingList></RatingList>
<ReelList>
<Reel>
<Id>urn:uuid:a19e578d-582a-4f04-9dd4-5a53d89d4477</Id>
<AssetList>
<MainPicture>
<Id>urn:uuid:0e7c4cba-f206-4b45-b1b6-26cd828795f6</Id>
<EditRate>24 1</EditRate>
<IntrinsicDuration>10657</IntrinsicDuration>
<EntryPoint>0</EntryPoint>
<Duration>10657</Duration>
<FrameRate>24 1</FrameRate>
<ScreenAspectRatio>2048 858</ScreenAspectRatio>
</MainPicture>
<MainSound>
<Id>urn:uuid:b1fc3fd5-8aad-4f2b-9148-c6715d22371c</Id>
<EditRate>24 1</EditRate>
<IntrinsicDuration>10657</IntrinsicDuration>
<EntryPoint>0</EntryPoint>
<Duration>10657</Duration>
</MainSound>
</AssetList>
</Reel>
</ReelList>
</CompositionPlaylist>
 
Antony said:
Hi Wolfgang,

The Sony server seems to be fine as it plays other DCP's without fail or issues.

Here is the CPL

<?xml version="1.0" encoding="UTF-8"?>
<CompositionPlaylist xmlns="http://www.smpte-ra.org/schemas/429-7/2006/CPL">
<Id>urn:uuid:583e1a6a-76d1-42fb-8602-76661f6bcb60</Id>
<AnnotationText>SUMMERTIME7_FTR-1_S_EN-XX_UK-XX_51_2k_TIF_20100419</AnnotationText>
<IssueDate>2010-10-12T19:49:05+00:00</IssueDate>
<Issuer>antony@localhost</Issuer>
<Creator>OpenCinemaTools - mkcpl 1.1.2</Creator>
<ContentTitleText>SUMMERTIME7_FTR-1_S_EN-XX_UK-XX_51_2k_TIF_20100419</ContentTitleText>
<ContentKind>feature</ContentKind>
<ContentVersion>
<Id>urn:uuid:d63fcb91-fddc-40b2-be23-3d8db85cdef2</Id>
<LabelText>d63fcb91-fddc-40b2-be23-3d8db85cdef2</LabelText>
</ContentVersion>
<RatingList></RatingList>
<ReelList>
<Reel>
<Id>urn:uuid:a19e578d-582a-4f04-9dd4-5a53d89d4477</Id>
<AssetList>
<MainPicture>
<Id>urn:uuid:0e7c4cba-f206-4b45-b1b6-26cd828795f6</Id>
<EditRate>24 1</EditRate>
<IntrinsicDuration>10657</IntrinsicDuration>
<EntryPoint>0</EntryPoint>
<Duration>10657</Duration>
<FrameRate>24 1</FrameRate>
<ScreenAspectRatio>2048 858</ScreenAspectRatio>
</MainPicture>
<MainSound>
<Id>urn:uuid:b1fc3fd5-8aad-4f2b-9148-c6715d22371c</Id>
<EditRate>24 1</EditRate>
<IntrinsicDuration>10657</IntrinsicDuration>
<EntryPoint>0</EntryPoint>
<Duration>10657</Duration>
</MainSound>
</AssetList>
</Reel>
</ReelList>
</CompositionPlaylist>
Click to expand...

One thing you can try is to edit the EntryPoint values to something past the time at which the sync issue begins. Something like 8640 would get you 6 minutes in. If they are still out of sync, it would seem like your source media a/v is out of sync.
 
Antony, the CPL is ok. In addition to what Terrence suggests: Check whether the image codestream turns funky around the de-sync spot. Simon Burley, recently over on cml-post, pointed at an issue with Doremi media block firmware issues preceding v21.1Z (in this case full bitrate 3D streams, perfectly within specs but still crashing the media block). Suggesting there can be deep issues with media block/firmware and certain material combinations. Unless your source is out of sync, of course.

Terrence, custom entry point and duration might be a neat addition to opendcp_xml.
 
Hi Wolfgang/Terence,

Thanks for your help. I will investigate further and post any findings here.
 
Wolfgang Woehl said:
Terrence, custom entry point and duration might be a neat addition to opendcp_xml.
Click to expand...

Good idea. I can add single duration/entry points easily. The only hard thing would be if you wanted different values for each asset. That would make for a convoluted command line. That is where a GUI will be nice.
 
plz, someone help me. i want to make mpeg2 dcp. i read all the tutorial from all user. i have all software like after effect, open cinema tool, converter and dcpc. in dcpc i'm getting "JIT" error and in open cinema i'm also getting a error.
 
hi woifgang, i checked your given link but i not able to find any thing. i know how to make mpeg2 dcp but i'm not able to make dcp coz of errors. i'm using windows xp. in windows how apply patch in open cinema tool.
 
Hi Guys, here's an update on my syncing issue.

It turns out that the picture/sound wasn't drifting. It was consistently out by 4 frames. The logical answer to this problem is that light travels faster than sound. Surely, the theatres are geared up for this though aren't they? I have checked with them and they don't get issues on other DCPs. They used to get it now and again with Celluloid but the compensated for that manually. However, they used to compensate at 4 frames so that it would sync up.

As I mentioned before, both video and audio are in sync on the timeline and when split up and used within different software. I tried adjusting the entry point, but it corrupted the CPL and the Sony server wouldn't even recognise it.

These leaves me with one area left that hopefully you guys could shed some light on. Is it conceivable that it could be happening during the MXF wrapping stage?

Yet, this doesn't make sense, because all image files and audio add up to the same length.

Any thoughts?
 
Antony, indeed 35mm release prints carry sound 21 frames ahead of the corresponding picture (the sound reader cannot sit right at the image gate). In a film projector that distance can be tweaked (to a certain amount) by short-loading between image gate and sound reader.

Assuming your DCP's audio is synced correctly and the venue's audio chain doesn't introduce additional delay you would have to be ~57 metres away from the screen to hear a sync point 4 frames late (167ms). Is that it?

To adjust your DCP you would have to re-author because the packing list carries values to check the integrity of assets (size and file digests).
Also, I believe, a cinema server's behaviour is undefined in the case of an audio asset being playback-short (in comparison to MainPicture). I'd append 4 black frames to image and 4 audio frames to audio, just to make sure.
 
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