How to generate a new subtitle VF

[vinci]

Hello everyone. I'm currently working on an unencrypted OV that comes with an open English subtitle. I would like to discard the English subtitle and add a Chinese subtitle. When I create a Chinese subtitle VF with direct audio and video references, the server plays it without any subtitles. I would like to ask how to discard the original English subtitle and add a new Chinese subtitle without re-transcoding?

[vinci]

It should be explained that the English subtitles within the original OV file are open captions. When I was working on the VF, I did not reference this subtitle, but the end result was that neither the English subtitles nor the Chinese subtitles were displayed.

[vinci]

This has happened many times in the middle of my workflow. If the OV is an EN-XX OV that doesn't carry subtitles, adding the subtitle VF will go very smoothly. But if the OV carries open captions, I have never been able to create a VF to add captions.

[carl]

It seems to work OK for me. Which version of DCP-o-matic are you using?

Can you attach the metadata.xml from your VF project, or send it to me at carl@dcpomatic.com ?

[IoannisSyrogiannis]

First thing I would check, and a common miss, is whether the "Use as | open subtitles" box is checked for the subtitle file, on the project.
Then, does the VF pack a subtitle file. (A folder, if it is IOP, an MXF file if it is SMPTE.)

[Carsten]

When you add a subtitled OV to a project, the subtitles are part of the project, but they are not enabled by default in DCP-o-matic (as Ioannis writes). When you create a new DCP using this project, the resulting new OV will not contain any subtitles.

So, the method is to add the OV to your project, create VF, check 'reference video/reference audio', then add your new VF subtitles, enable them under 'Timed Text, add language tag, and they should be visible in the preview window, and the resulting VF.