ONVIF Profile G support

[vicaya]

https://www.onvif.org/profiles/profile-g/

The profile g support would allow 24/7 recording and backup preconfigured intervals of footage around any events without having to clog the network 24/7.

[kaburagisec]

There will be a phased implementation of ONVIF support in the future, starting with Profiles S, T, and G.

But it seems like the actual implementation ignores the profiles and directly implements direct services like Device, Imaging, Events, and so on.

[dumiller]

From my experience most manufacture implements profile G is substantial different marking it hard on developers to develop the profile G specification to work across multiple manufactures. The cleanest implementation we have seen is with Uniview.

Profile S and T seem to be most standardized between manufactures from our experience. If you need some help with testing let me know as I have lots of real world experience dealing with ONVIF and working with large camera manufactures.

[kaburagisec]

I agree that there are challenges regarding the G profile in ONVIF, as each manufacturer implements it in its own way.

Currently, development is focused on the S profile in draft PR #1205, which has been specifically developed to ensure compatibility with all ONVIF devices. Once this PR is released, please test it on your device and create an issue/discussion for future improvements.