releaseCastPlayer

Releases the resources this connector created for ONE player — the object createCastPlayer returned for it. Called from OGPlayer.release() so that a connector shared by several players (a second screen, a feed) outlives the first player to go: releasing everything there would take the other players' live CastPlayer, session listener and cast-state listener with it.

The default releases everything, which is what a connector serving a single player wants.