st3m: Mix media output together with bl00mbox
Not the cleanest thing, but it allows to use media framework together with bl00mbox until a proper solution described in flow3r/flow3r-firmware#119 (comment 13069) is figured out.
Performance wise it appears to work pretty well - it doesn't cause any troubles when playing video, and MOD & MP3 can even comfortably play together with shoegaze.