DeepStream 3.0
Ubuntu 16.04
GStreamer 1.8.3-1ubuntu0.2
this pipeline:
gst-launch-1.0 -v videotestsrc ! videoscale ! videoconvert ! "video/x-raw,width=450,height=450,format=NV12" ! \
nvvidconv ! "video/x-raw(memory:NVMM),format=NV12" ! nvvidconv ! \
nvosd ! nveglglessink sync=false
Output image, in attached file. In general, if the input resolution is not divisible by 8, then problems are obtained.