Put delay in source

I am using deepstream 4.02. How I can put delay in source? why I am asking when I process offline video it processs quickly and could not debug rest of the things.
So wanted to put some delay in source.

You might try to add queue after source element, check queue’s parmeters, gst-inspect queue. and we have 5.0.1 released, you can upgrade for new features and bugs fixed.