The tool lacks support for ros2idl schema encoding

[rachwalk]

Hi, I have an .mcap file which contains messages conformant to the ros2idl schema. The schema is officially supported in the spec -- see here.

This results in most topics of the rosbag being dropped during conversion. Is it possible to add the encoding to the supported ones for kappe?

[mrkbac]

Hi, adding ros2idl should be possible but is not a priority for us at the moment.

Do you have a mcap I can use to test and see what is missing? If it is a simple fix, I might be able to add it. Otherwise, contributions are always welcome.

[rachwalk]

Yes absolutely, here is a tar.gz containing the mcap and metada -- [dropbox].

In addition to that, if it's somehow hard to fix it would be very nice to have the fails to convert properly reported. For this rosbag running kappe cut with the following config:

keep_tf_tree: true
splits:
  - start: 1699450526.0
    end: 1699450590.0
    name: cut.mcap

Results in silent dropping of all topics which are in the unsupported encoding.

[nirhenn]

Hi There, quick check if this topic was resolved as I am facing the same issue. Some topics are dropped as it is missing schema since they are described in ros2idl

[github-actions[bot]]

Issue marked as stale because it has not had recent activity. It will be closed if no further activity occurs.