Most camera manufacturers produces cameras with what they, at least, call 'embedded analytics' or some variant of that name.
The harder question is which ones actually work. Historically, the two that have had the best track record has been VideoIQ (now Avigilon) and ioimage.
I'll throw the question back to you: What do you want these analytics to do? In what environment? And how accurately?
Yes it is "frankenstein" type of spec indeed. It was even worse but after hundreds of questions it changed a bit altough it's horrible still.
Forget about panic detection - I just clarified it that it meant to be really Crowding (crowd accumulation detection - that is just my roughly translation which can be confusing as english is not my first language).
So to sum it up since most of those features are quite common we are really looking for some that have Crowding and People Counting in their package.
I found that Agent Vi has it but are there any other?