Meta information: Adding new fields to Track and Video models

[rcbop]

Hello,

I forked the repository and I'm currently trying to create a custom format by following the guide provided here but we currently need to store some additional information into the annotation object. Those fields are:

Track related fields:

• ROS framework UNIX start timestamp (float)
• ROS framework UNIX end timestamp (float)

Global job related fields:

• video start trimmed frames (integer)
• video end trimmed frames (integer)

Could I just add new fields for Track here into the TrackedShape model And those ones related to job here, Would I need to change anything else aside the format dump/load handlers?

Also any tips on how to add those fields in the React UI?

[nmanovic]

@rcbop , thanks for the question. I can advise only on a general solution which we will be able to merge into upstream.

You can workaround the problem (even I don't like the workaround it will help you complete the job quickly without any code customization)

• Track related fields can be added as permanent attributes to necessary labels. You can add for each label immutable attributes "start_time" and "end_time". Thus each track will have such attributes.
• Global job related fields can be added as a "dummy annotation". Create a box with a special label (e.g. global_context) and with necessary attributes (e.g. "start_time", "end_time").

It seems that we need some meta information for tasks/jobs/frames. I don't know yet how to implement it. But I see already several requests where it can be helpful.

[rcbop]

Sure thing, I will try to come up with some generic metadata storage solution for the annotation related db entities and get back to you. Thanks

[rcbop]

@nmanovic turns out we took the workaround path. Global job related fields were added as a dummy annotation points at the beginning of every video. Everything else became immutable attributes of the annotations. Those are treated by the parser to dump/load the annotations file. Thank you.