Gstreamer GPU Encoding

Robotics & Edge Computing Jetson Systems Jetson Nano
1

Hello

Ive been using gstreamer to encode video wit this pipeline:

gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM), width=1920, height=1080, format=NV12, framerate=30/1' ! nvvidconv flip-method=4 ! nvv4l2h265enc maxperf-enable=1 bitrate=12000000 !h265parse !qtmux ! filesink location=videofile_v4l_h265.mp4 -e

Using tegrastats i noticed the GPU is at 0% and CPU goes up a few percents. Is this normal? Am i doing something wrong? Is there a way to force GPU encoding?

3

Hi,
The hardware encoder is NVENC. Please look at tegrastats utility.

4

Tegrastats only outputs this info to me, even if NVENC is being used.

RAM 1372/3956MB (lfb 442x4MB) SWAP 0/1978MB (cached 0MB) CPU [7%@1036,10%@1036,8%@1036,11%@1036] EMC_FREQ 0% GR3D_FREQ 0% PLL@14.5C CPU@17.5C PMIC@100C GPU@17C AO@26C thermal@17.25C POM_5V_IN 2311/2286 POM_5V_GPU 0/0 POM_5V_CPU 288/288

is there a problem with tegrastats for me?

5

Hi,
Probably you don’t run with sudo. Please try sudo tegrastats.