GPU jetson nano

Autonomous Machines Jetson & Embedded Systems Jetson Nano
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1

Hello,

I have a jetson nano connected with 4 USB cameras. I stream the video from these cameras (jpeg) via gstreamer. I use this command for each camera:

gst-launch-1.0 -v v4l2src device=/dev/video0 do-timestamp=true ! image/jpeg,width=1920,height=1080,framerate=30/1 ! nvjpegdec ! nvvidconv ! nvv4l2h264enc maxperf-enable=1 iframeinterval=30 bitrate=3000000 insert-sps-pps=1 ! ‘video/x-h264, stream-format=(string)byte-stream’ ! rtph264pay mtu=1000 ! udpsink host=xxxxx port=xxxx &

But I am interested in knowing if with this command I am making use of the GPU or not, since if I do a “sudo tegrastats” in the GR3D field it is always 0%. Which is a bit strange if you are using the GPU.

Therefore do I have to change something in the command? Am I using the GPU or not? Can you use it?

Regards

2

Hi,
On Jetson platforms, there’s hardware codec engines so it doesn’t use GPU for JPEG decoding and H264encoding. It is expected GPU loading is 0% while running the pipeline.