How to stablize video in realtime?

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I know openCV3.1.0 now has a video stabilization class, and I read and run the given example cpp code(.\sources\samples\cpp\videostab.cpp), I find it first run "estimating motion", and then process frames. The result is good, but it is not run in realtime.

So I want to ask, how to modify the given code("videostab.cpp") to stablize video in realtime? Or now opencv3.1.0 can not implement video stabilization in realtime by using the video stabilization class?

Thank you!