xbmc/xbmc — pull request #2439 by Memphiz (2013-03-14 20:22:12+00:00)
Title: [AirTunes] - add volume control using libshairport

This adds volume control when using libshairport (all platforms beside windows). We do the same on windows (utilising libshairplay) already and this should sync up the feature on all platforms.

Upstream libshairport (used for linux distributions and maintained by amejia) got a PR for the libshairport change aswell.