Add NVENC profile for out of the box experience
Add NVENC support for proxies and rendering for NVIDIA users:
f=mp4 vcodec=nvenc_h264 vb=30000k acodec=aac ab=192k
Taken from comment in our site pointing to: http://wed.sytes.net/filmari-nunti-suceava/filmarinuntisuceava.php?page_id=187
Bonus if we have profiles for different bitrates.