Needed to follow README instructions to install the binaries and these deps
• Ubuntu 16.04
• Gstreamer 1.8.3
• NVIDIA driver 396+
• CUDA 9.2
• TENSORT 4.0
• OpenCV 3.4.x


$ sudo apt-get install libgstreamer-plugins-base1.0-dev libgstreamer1.0-dev
$ pwd
/home/ubuntu/dev/DeepStream_Release2/sources/apps/deepstream-test1
$ make
$ ./deepstream-test1-app ../../../samples/streams/sample_720p.h264