Merging rosbag files and removing gaps of no messages

edit

--skip-empty does skip gaps, but I'm wondering whether it fulfils the

playback the entire sequence as one smooth continuous sequence

wish of the OP.

@Ed Venator, thanks a lot, this works perfect for me! Strange that this is not in the documentation for rosbag though ( http://wiki.ros.org/rosbag/Commandlin... .

The ROS wiki is often out of date and incomplete. I found the option with rosbag play --help

@vkee: the wiki is dependent on users like you to keep it up to date. It isn't an automatically generated resource.

It would be great if you could edit the page to include the --skip-empty option (and any other missing options).

@Ed Venator, I am running into issues using this command. When I handle the messages in a node callback, I am getting the following issue which kills my node:

munmap_chunk(): invalid pointer: 0x00007fffd47a33f0

I am guessing this is related to skipping (as I never had this issue before). Any idea?

I've never run into that particular error. It looks like a memory corruption error. What node is throwing that?

The node with the callback that handles messages from the bag. It never has that issue if I don't run it with the skip option so I'm wondering if it has to do with the skipping.

Without knowing what code's running in that node, I can't say. If it's doing something with time, it's possible that it can't handle large jumps in Ros Time.