Similar projects and alternatives to ExoPlayer
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ExoPlayer reviews and mentions
How can I help my partner write better code?
2 projects | reddit.com/r/learnprogramming | 27 Nov 2021
I would strongly suggest your partner start reading other people's code on things like Github, etc., and see how they're written. For example, looking at Valve software's ExoPlayer (here), we can see a number of things:
ValveSoftware/ExoPlayer is an open source project licensed under Apache License 2.0 which is an OSI approved license.