How get mipi framerate?

I’m using the argus sample yuvJpeg,I can get the Timestamp,but I want know this example’s framerate and how to set the framerate.
Could you tell me how to set?

argus version argus_R28.1.tgz

Check the sample to use setFrameDurationRange(), getFrameDurationRange() to try.

samples/09_camera_jpeg_capture/main.cpp