Library for recording from and playing back to Robot OS topics

 This package is part of Robot OS (ROS). It is the rosbag library,
 which provides APIs for reading/writing bags (ROS message stores) in
 C++ and Python. It is intended to be high performance and avoids
 deserialization and reserialization of the messages.
 .
 The related rosbag package provides a command-line tool for working
 with bags.