Record CSI-Camera to h264 video

gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM), width=1920, height=1080,format=NV12, framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM), format=(string)I420' ! nvv4l2h264enc preset-level=4 MeasureEncoderLatency=1 ! 'video/x-h264, stream-format=(string)byte-stream, alignment=(string)au' ! filesink location=file.h264 -e 

gst-launch-1.0 filesrc location=file.h264 ! h264parse ! nvv4l2decoder ! nvvidconv ! nveglglessink -e