Software or Hardware Encoder for RTSP Stream to HTTP Stream Transcoding

[cameraAutomations]

Greetings all. This is a great forum. Looking for advice on making HTTP camera streams available from my NVR cameras.

My current system is comprised of equipment from Security Camera Warehouse (SCW)

• 15 x Guardian Pro 4 cameras (4MP @ 20 FPS 2560 x 1440)
• 16 CH Vanguard Pro NVR which is since discontinued. The NVR has 4 x WD Purple 8TB Surveillance Hard Disk Drives

Likes

• Dedicated 16 port PoE included in the NVR
• Dedicated hardware for camera recording

Dislikes:

• No motion detection or other rich features
• NO http-streaming for any of the cameras, only rtsp-streaming. This is a deal breaker for me. While this would normally not be an issue, I have a home automation system and want to be able to see my cameras from my automation system user interface on my iPhones. The only way to watch cameras on my iPhone is to either use the custom camera app from SCW. I want a single pane of glass so to speak

I really do not want to move to Blue Iris b/c I would then have to get a dedicated server as well as a PoE switch. I'd rather keep everything for the time being on the NVR.

I need to be able to transcode the RTSP streams for the cameras to HTTP streams so that I can access them from my automation system.

Is there a hardware or software product that anyone would recommend? VLC can do this, but just running one camera pegs the CPU at 43% on my Intel NUC using:

vlc.exe -R rtsp:/USER:PASS@10.0.50.6:554/Streaming/Channels/101 --sout "#transcode{vcodec=mjpg,vb=2500,scale=1.0,fps=10,acodec=none}:standard{access=http{mime=multipart/x-mixed-replace; boundary=7b3cc56e5f51db803f790dad720ed50a},mux=mpjpeg,dst=:8888/videostream.cgi}"

I am looking in to purchased a refurb HP workstation to replace 2x Mac Mini's and 1x Intel NUC and can use it to run any software based encoder. The specs for the workstation:

HP Z4 G4 W10P-64
64GB RAM
NVIDIA Quadro P400 2GB