Producing MISB ST1910 CMAF from MPEGTS

[jwstover]

Hello, I apologize if this is not the right place, but I was hoping for some guidance on how I could best approach this problem and if GPAC/MP4Box is the right tool for the job.

What I would like to do is convert an mpegts file that contains a single video stream and a single KLV data stream to CMAF according to MISB ST1910. What I'm most interested in is mapping the KLV metadata packets into EMSG boxes in the output CMAF. There is a demo DASH manifest that looks like it was created with GPAC that gives me some hope, but I'm not really sure where to start.

[rbouqueau]

The only reference I see in the GPAC repository is in #736. Maybe that was the original contributors?

Have you tried to write to the MASB chair to ask how they generated the streams?

[jwstover]

I have not, but I will do so and then provide an update here.

[jeanlf]

Any news on that ? The manifest was generated by a custom GPAC, official code does not inject inband event stream tags

[rbouqueau]

Any news here?

[rbouqueau]

Still no news here?

[jwstover]

Hi, apologies for the long delay. I reached out to one of the people that worked on the demo that I linked in my original question. The manifest and CMAF chunks were made using a collection of custom python scripts that are entirely unrelated to GPAC. As far as I am aware there isn't a tool that provides the capability that I was looking for.

[rbouqueau]

Ok, closing for now. Please re-open if there is news.