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rosbag meta data

asked 2011-03-10 22:24:01 -0600

KoenBuys gravatar image

Is there a way to extend the bag file format with a description field that explains how the data was achieved/recorded. Or at least a link to a document that gives this details. I was thinking of something like:

rosbag record /tf -m "this was recorded for IROS paper 2011 with <settings> active and female test person, more info in bag_specs.txt"

Or even a:

--detail-file="_bag_specs.txt"

Perhaps there is such a functionality that I'm not aware of? (and no I don't want to be putting this into a topic which is also recorded)

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answered 2011-03-15 20:41:36 -0600

KoenBuys gravatar image

How do I go further in implementing such functionality? Is there interest from WG to give support? Do I file a ticket?

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A ticket would be good; a patch better. We've held off on implementing this as there's room for abusing the feature, but it's been demanded enough and is useful in enough circumstances that I think we should pull the trigger. I like your -m option.
Tim Field gravatar imageTim Field ( 2011-03-16 10:20:54 -0600 )edit
This would indeed be my next question, how should we implement this?
KoenBuys gravatar imageKoenBuys ( 2011-03-16 18:42:29 -0600 )edit
Please open a ticket and we can discuss the feature there. Thanks.
Tim Field gravatar imageTim Field ( 2011-03-25 05:02:44 -0600 )edit
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answered 2011-03-15 19:11:03 -0600

Tim Field gravatar image

No, there isn't currently functionality to do that.

There's room to extend the format in future versions of ROS to add small amounts of metadata, however, as the file header record is padded out to 4KB.

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Asked: 2011-03-10 22:24:01 -0600

Seen: 351 times

Last updated: Mar 15 '11