Hi John,

approx one minute in 30min sounds like a 24/25fps issue. That IS usually no issue, you are free to generate a DCP with either 24 or 25 fps in both SMPTE or INTEROP format - except if you operate a Dolby DSS100/DSP100, which is not able to play 25fps. There are still quite a few DSS100/DSP100 around, so if there is a chance your DCP might end up on one of those, you should also create a 24fps version.

This should not occur with a single (interleaved video/audio) file of content, so I assume you use more than one content file?

- Carsten



Am 31.07.2017 um 08:00 schrieb John Martin <John@trinitytheatre.net>:

Hi Carsten,
 
Thank you for coming back so quickly – the answer appears to be framerate – the software was prompting me to change it  – but if I ignore that it remains the same length.
 
I will test it when I am in the theatre today.
 
Thanks again. 
 
Best regards
 
John Martin
Artistic Director
 
Phone: 07762 587768
Website: www.trinitytheatre.net
 
From: Carsten Kurz [mailto:audiovisual@t-online.de] 
Sent: 30 July 2017 14:19
To: John Martin; dcpomatic@carlh.net
Subject: Re: [DCP-o-matic] DCP issue
 
Open timeline view and check wether there is an overlapping/longer audio track, or subtitles. If any non-video track is longer than the video, DOM creates black to match overall length. This could also be caused by framerate changes.
Are you sure that black is not part of the source content? If it is, you can apply trimming to get rid of it.
 
- Carsten

... gesendet von unterwegs


Am 30.07.2017 um 14:37 schrieb John Martin via DCPomatic <dcpomatic@carlh.net>:

Hi,
 
I am using DCP -o – matic to create a DCP from a video file that runs 30 minutes. In the authoring process it is adding an extra minute of black at the end.
 
As this is part of a scheduled show it is causing problems with the timing of what comes afterwards as well as causing our projectionists to think that there has been some sort of failure!  
 
Would you know what is causing this and how I might solve the problem?
 
I look forward to hearing from you. 
 
 
Best regards
 
John Martin

Artistic Director

Phone: 07762 587768
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