Export the native platform instance for more access (especially with plugins)

[Pato05]

Is your feature request related to a problem? Please describe.
It would allow for access on more options on my library just_audio_media_kit, and I'm guessing on other plugins as well.

Describe the solution you'd like
Have a getter like AudioPlayer.platform or AudioPlayer.nativePlayer (with AudioPlayer being the player instance) to get the underlying AudioPlayerPlatform instance

Describe alternatives you've considered
None

Additional context
None

[ryanheise]

This is something I was also considering for just_audio_background which installs a custom platform interface implementation, since some users want an easy way to have one player using that implementation, and another player using a different implementation. This would involve not a getter but a setter.

So maybe the solution is to add a platform field, but mark it with some sort of annotation that gives appropriate warnings.

If you wouldn't mind, could you also provide some specifics about you would do with this API?

[Pato05]

If you wouldn't mind, could you also provide some specifics about you would do with this API?

In my specific case, since I'm wrapping another library's player object, this would allow for finer tuning like setting specific libmpv properties via the setProperty api, for example.