gst-launch-1.0 videotestsrc ! autovideosink
gst-launch-1.0 videotestsrc ! nvh264enc ! fakesink
./autogen.sh --noconfigure
./configure \
--libdir=/usr/lib/x86_64-linux-gnu \
CUDA_CFLAGS="-I/usr/local/cuda/include" \
CUDA_LIBS="-L/usr/local/cuda/lib64" \
NVENCODE_CFLAGS="-I/usr/local/cuda/include" \
NVENCODE_LIBS="-L/usr/local/cuda/lib64/stubs"