hello,

contrary to widespread belief, rtmp is not limited to stereo sound.
it would be great to develop ability to stream with multichannel audio beyond stereo : 4.0 5.1 6.1 7.1 etc in rtmp
The main objection that there is no service able to deal with multichannel audio is no longer true.

Facebook live 360 now supports spatialization of sound with rtmp, check for instance:
https://fb360spatialwork...ve-360-video-on-Facebook

Ffmpeg and libfdk_aac can encode to a multichannel audio rtmp output.
Nginx and wowza accept multichannel audio rtmp as can be checked directly.

Here is a capture of ffmpeg streaming in 7.1 rtmp to a wowza server.




As an aside, it would be nice to port the multichannel ability not only to the streaming module but also the recording one for people using asio multichannel sound cards or sdi capture cards with embedded audio.