Decompress Video toolbox video on non-Apple hardware?

Does Video Toolbox’s compression session yield data I can decompress on a different device that doesn’t have Apple’s decompression? i.e. so I can network data to other devices that aren’t necessarily Apple?

or is the format proprietary rather than just regular h.264 (for example)?

If I can decompress without video toolbox, may I have reference to some examples for how to do this using cross-platform APIs? Maybe FFMPEG has something?

Of course, VideoToolbox will create encoded data with the specification of the format you selected. It will be decodable on every other hardware.