Jetson TX2 Gstreamer Hardware Encode/Decode No Gpu Usage


I use omxh264dec , omxh264dec and make a stream over network. I do successfully play it from the client pc, however there is no gpu usage in the server pc, also with some gpu test and I am able to see gpu usage.

Why does not omxh264dec element use gpu, it is hardware encode/decode element isn’t it?
What should I do to solve this?

Please refer to figure 1 in parker TRM:

Video decoder is an independent hardware block.

Some of new version of GPUs like GTX 1080, also has independent hardware decoder(NVHDEC), why this use gpu usage that I have tested, of course with ffmpeg.