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by sprayk 1223 days ago
neither video/audio decoders nor demuxers nor subtitle format parsing/rendering have OS APIs. hell, there's at least a few ways you can draw a rendered frame to the screen on any OS that will take different paths through either the OS's drawing APIs (if you're not on Linux) or graphics drivers. Even _if_ the OS supported taking video file data and playing it, it wouldn't support all of the codecs/containers/subs you'd want to play.