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Big Van  
#1 Posted : Saturday, May 29, 2021 5:35:25 AM(UTC)
Big Van

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Location: North Carolina

Hello all,
Thanks in advance for your help!
I have a few questions about hooking up a PTZ camera to my PC;
1. I'm planning to use POE for powering the camera. Will the ethernet also send the video back to the PC or do I need HDMI?
2. Should I use both Ethernet (for power/control) and HDMI (video send) for best results?
3. If I send the video back via ethernet only, will the image be as good as via HDMI?

Thanks again,
Van
mavik  
#2 Posted : Saturday, May 29, 2021 5:51:12 AM(UTC)
mavik

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#1 If the cam supports PoE you will get some sort of stream out of the cam over LAN. RTSP, MJPEG, NDI, whatever the cam supports
#2 All streams will have latency. For HDMI you would need a capture device which adds costs.
#3 Most streams will need some sort of compression. So HDMI will be the better quality. If this matters for the final stream viewers consume is up to what is accepted/expected
Speegs  
#3 Posted : Saturday, May 29, 2021 12:13:18 PM(UTC)
Speegs

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For the best result, I use SDI for the video and LAN for the control.

Most of my PTZ's have NDI or NDIHX. I use that where I'm doing an event and don't have time to run SDI + LAN to the camera.

My thought is while NDI or NDIHX work pretty well, if you have the ability to quickly run an SDI or HDMI cable into a capture card as well, do it. I have more problems with NDI than SDI. Typically have problems with HDMI over distance (which can be overcome with HDBaseT extenders), but fine for short runs of course.
mavik  
#4 Posted : Monday, May 31, 2021 11:59:19 PM(UTC)
mavik

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For NDI you need to know your network and understand what is happening with adding video to the network. Feel free to take a look at some NDI Bandwidth requirements.
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