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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I know you said "Mac preferred," but if you don't want to fight the Apple, and you have a Windows desktop handy, you can get a Firewire PCIe card for less than $20 and WinFF can capture your footage effortlessly. It's a little cheaper than Apple's solution, especially once you consider you'll need a Thunderbolt 3 to Thunderbolt 2 adapter (which, again, isn't the cheapest solution from Apple and I dunno how much you trust the alternatives).
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.