Tvheadend

When a TV channel diffuse two audio streams, one in stereo, the other in 5.1 dolby, both appear as Stereo under XBMC.
Streams are named in OSD : french and unknown

When using mythtv-backend for playing these channels, the 5.1 stream is right decoded by my sound system as dolby.
Streams are named in OSD : french and 5.1

unfortunately, my dump capture a channel without the 5.1 stream activated for the moment, I will post the stream after.

maybe the implementation of ticket 219 (r5552) should be corrected.

I made some research in XBMC source code and TVheadend, I can't figure out which one could be wrong.

maybe this implementation in ffmeg could help to understand the stream : http://cekirdek.uludag.org.tr/~ismail/ffmpeg-docs/eac3dec_8c-source.html#l00291