Sorry for so many replies, this link looks like it might help NVIDIA Jetson Nano GStreamer example pipelines for video transforming - RidgeRun Developer Connection
gst-launch-1.0 nvarguscamerasrc sensor_id=0 ! 'video/x-raw(memory:NVMM),width=1280, height=720, \
framerate=60/1, format=NV12' ! nvvidconv flip-method=0 ! 'video/x-raw,width=1280, height=720, format=RGBA' ! \
queue ! tee name=t t. ! queue ! comp. t. ! queue ! comp. nvcompositor name=comp sink_0::xpos=0 sink_0::ypos=0 \
sink_0::width=160 sink_0::height=120 sink_1::xpos=160 sink_1::ypos=0 sink_1::width=160 sink_1::height=120 ! \
nv3dsink
That gives a error reason not negotiated (-4) but if I run it with nvoverlaysink there is no error (but obviously it doesn’t display because the sink is depracated)