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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.
VLC is available for the Mac. It can decode most video formats.
FFmpeg can probably be used to re-encode the file into something more suitable for your needs. There are many GUI front ends for FFmpeg.
NOTE:
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Hence, a higher number means a more popular project.