[doldi]

ok - here i am ... with #1116: RPi2
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First RPi2 with Hifiberry-DAC+ :

AudioCD DTS5.1 will work fine , for me is that ok. ;-)
with passtrough there is no sound [?] ...
the same on DD5.1 - the DAC makes his job .[no passtrough].
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Second RPi2 over HDMI and SPDIF(optical) - Audio to Yahama Receiver:

Audio CD DTS5.1 - great Sound with passtrough!
Video, here with an Depech Mode live concert - DD5.1 [AC3) over SPDIF (optical) and passtrough also perfect sound on my Yamaha Receiver.

I think, the people here makes a very good Job

SeeYaah :-)

Edit: @ Ollo -> if i deaktivate passtrough over HDMI / SPDIF the sound is only "Stereo" ...think also normaly.

@ Milhouse: there is a "Buffering", 3 seconds when i'm switching - in older builds i would not notice this ... no prob for me.