Wrapture is a surround sound capable streaming app. 
Multichannel audio playback is available using a variety of codecs.
Supported channel layouts include; 7.1, 5.1, & 2.0.
Wrapture is available for the Apple TV, iOS devices, and your desktop Mac…
Wrapture is free =D
tvOS Store: not yet available.
iOS Store: not yet available.
MacOS Store: not yet available.
Wrapture is built using Taner Sener‘s ‘mobile-ffmpeg’ library.
The open source repository is available at GitHub. The Wrapture client requires an HLS streaming server (not included) exposing video content in a format such as *.m3u8.
Tutorial on preparing your own content.