Youtube has a button with which somebody can select quality. Is there a similar button or plugin for Strobe Media Playback ?
the short answer is no.
Longer: there's an indicator that shows if the stream is HD or not. It was planned for automated switching support, not for manual. A developer can start from there and create a similar control.
Otherwise, JS API offers support for manually changing the stream. Please check the http://osmf.org/dev/1.6gm/debug.html, below the video player.
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