How to use with ROS

[ShrutheeshIR]

Thank you for this repository! I was able to get the basics set up and working. I have the camera spawned in Gazebo and I am able to view the different topic properly. However, my query is regarding moving forward.
How do I use this plugin in a real-time code, to get my images.
The two relevant Intel Packages are librealsense and realsense-ros
Is this package meant to be a substitute for any of them?
Can I use the librealsense scripts with this? If so, is there an example code of the same?
(I am able to record the images using rosbag and play it, however, I am looking for realtime integration with librealsense)
Thanks!

Edit: If it is helpful, I tried to read a rosbag using the librealsense library. If I try to intergrate with librealsense, I get this message : Invalid format, file does not contain topic "/file_version" nor "/FILE_VERSION". i.e. for the library to work, it expects file_version in the rosbag.