Using gstreamer to stream from CSI camera to RTP uses only CPU resources

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

the following code:

gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM), \
  format=NV12, width=1920, height=1080' ! \
  nvv4l2h264enc insert-sps-pps=true ! h264parse ! \
  rtph264pay pt=96 ! udpsink host=127.0.0.1 port=8001 sync=false -e

Streaming works correctly but when I look at jtop I see that GPU usage is equal to 0 but CPU usage is about 40% (average from 4 cores) when I don’t stream the CPU usage is about 30%.

  1. Why I don’t see any change in GPU when I encode video? Does the hardware acceleration on Jetson Nano is not GPU?
3

Hi
There is individual hardware encoder in Jetson Nano, so encoding does not take GPU usage. Please execute sudo tegrastats and you will see NVENC being enabled.