What is NVJPG, and how do we use it?

“Figure 1: Tegra X1 Processor Block Diagram” shows a module named NVJPG. The Reference Manual does not explain what it is. Is it a jpeg encoder? Can we use it? How?

Ah, found an example in the Multimedia Guide:

gst-launch-0.10 videotestsrc num-buffers=1 ! ‘video/x-raw-yuv, width=(int)1280, height=(int)720, format=(fourcc)I420’ ! nvjpegenc ! filesink location=test.jpg -e