Encrypted DCP and subtitles

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tomabaza
Posts: 4
Joined: Sat Mar 09, 2019 12:34 pm

Encrypted DCP and subtitles

Post by tomabaza » Mon Mar 11, 2019 2:13 pm

Hi,
I have tried to create an encrpyted DCP with text (srt) subtitles. They are shown in preview in DCP-o-matic but DCP-o-matic 2 Player doesn't show them although it writes Subutitles yes.
I have tried to add them in one DCP and also as VF to an existing encrypted DCP. The only solution was to burn them in the video.
Unfortunately I have no possibility to try the DPC on the server.
I do not know if I am making some mistake or it is an error or a feature.
Thanks
Tomáš

carl
Site Admin
Posts: 979
Joined: Thu Nov 14, 2013 2:53 pm

Re: Encrypted DCP and subtitles

Post by carl » Mon Mar 11, 2019 9:27 pm

Hi Tomáš

Are you making a SMPTE or Interop DCP?

Poetamaledetto2
Posts: 1
Joined: Sat Jun 02, 2018 9:51 pm

Re: Encrypted DCP and subtitles

Post by Poetamaledetto2 » Tue Mar 12, 2019 6:27 am

Hallo!
I have the same issue...
I’m in Italy and I need to project an encrypted DCP with Italian subs provided by me in it...

How comes?

The film will be surely in 24fps, so I have to set the subtitle accordingly and save it as .srt right?

DCP-o-matic can open open an encrypted DCP then?

There’s a procedure that can help me on that?

Many thanks for your help.

tomabaza
Posts: 4
Joined: Sat Mar 09, 2019 12:34 pm

Re: Encrypted DCP and subtitles

Post by tomabaza » Tue Mar 12, 2019 9:32 pm

carl wrote:
Mon Mar 11, 2019 9:27 pm
Are you making a SMPTE or Interop DCP?
I've tried both.

Carsten
Posts: 1215
Joined: Tue Apr 15, 2014 9:11 pm
Location: Germany

Re: Encrypted DCP and subtitles

Post by Carsten » Tue Mar 12, 2019 9:52 pm

If you want to use an encrypted DCP and want to add subtitles to it (no matter wether timed text or burn, OV or VF), you need to get a (D)KDM for the original DCP, targeted at your specific DCP-o-matic installation. Therefore, you have to send your DCP-o-matic leaf certificate to whoever is able to issue KDMs for this DCP.

If you receive the KDM, you can assign it to the original DCP in DCP-o-matic (rightclick in content list), then add the subtitles and create a new encrypted DCP. You will need to create your own KDMs for this new DCP, or you have to issue a DKDM for whoever is mandated to create and send out KDMs for the subtitled version.

Note - you can test all these procedures with your own DCP-o-matic installation. Create an encrypted Test DCP, issue a (D)KDM, add to a new project, add subtitles, create new encrypted DCP, issue (D)KDM for it. If this works for you and you have understood the workflow, you can try with the real DCP.

DCP-o-matic offers you a whole industry-standard encryption/decryption/KDM universe, from DCP creation, modification, into the player. The current test version of the player will optionally respect KDM validity time frames.


Note, whenever you dump your DCP-o-matic config, install a new machine, wipe your disc, you will lose your security certs and with a new install of DCP-o-matic (not an update), KDMs issued previously become invalid. First thing to do when you start dealing with encrypted content is to backup your current config/certs to a safe place, so you can go back to them when necessary.

- Carsten

carl
Site Admin
Posts: 979
Joined: Thu Nov 14, 2013 2:53 pm

Re: Encrypted DCP and subtitles

Post by carl » Tue Mar 12, 2019 10:03 pm

tomabaza wrote:
Tue Mar 12, 2019 9:32 pm
carl wrote:
Mon Mar 11, 2019 9:27 pm
Are you making a SMPTE or Interop DCP?
I've tried both.
Can you send the XML files and the sub_....mxf file from your SMPTE DCP to carl@dcpomatic.com ?

tomabaza
Posts: 4
Joined: Sat Mar 09, 2019 12:34 pm

Re: Encrypted DCP and subtitles

Post by tomabaza » Tue Apr 23, 2019 5:40 pm

I have send it some times ago. Did you got it?

carl
Site Admin
Posts: 979
Joined: Thu Nov 14, 2013 2:53 pm

Re: Encrypted DCP and subtitles

Post by carl » Wed Apr 24, 2019 11:15 pm

Sorry for the delay in replying. It looks like you might be seeing a bug which is fixed in the current test version. Could you try that? Or have you tried it already?

tomabaza
Posts: 4
Joined: Sat Mar 09, 2019 12:34 pm

Re: Encrypted DCP and subtitles

Post by tomabaza » Mon Apr 29, 2019 8:52 am

Sorry for late response. I have tried the current test version (2.13.156) and it works. Thank you for your time and effort!

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