What is the j2c folder? Are fonts embedded automatically?

[Sami S]

Hi!

A few general questions that are not problems as such but I'm interested in understanding them.

1) I've exported a 4K Pores HQ from Resolve and successfully created a 4K DCP in DCP-o-matic. In the process DCP-o-matic created a j2c folder that has some j2c file sequences from my film. How does DCP-o-matic know which sequences are graphics since it's doing it from a Prores file? Or is it something to do with "start of end credits markers"?

Is it necessary to include these when I send the DCP or as usual can I just send the rendered DCP VF and OV folders?

2) Is the font I chose (Arial.ttf) embedded in some file inside the VF folder?

Thank you!

[carl]

1) I've exported a 4K Pores HQ from Resolve and successfully created a 4K DCP in DCP-o-matic. In the process DCP-o-matic created a j2c folder that has some j2c file sequences from my film. How does DCP-o-matic know which sequences are graphics since it's doing it from a Prores file? Or is it something to do with "start of end credits markers"?

This is just a temporary folder, where JPEG2000 data is saved if it can't be held in memory for some reason. We should probably deleted it automatically to avoid confusion.

Is it necessary to include these when I send the DCP or as usual can I just send the rendered DCP VF and OV folders?

Absolutely not, they can cause confusion (along with the other DCP-o-matic stuff e.g. metadata.xml, log etc.). So just send the VF/OV folders.

2) Is the font I chose (Arial.ttf) embedded in some file inside the VF folder?

For SMPTE DCPs the font is embedded in the sub_...mxf file. For Interop files the fonts are included separately.

[Sami S]

Excellent, thanks so much Carl!