[infinity85]

Had time for a bit of S905 Kernel spelunking today and all the LPCM, EAC3 and DTSHD code is in there, just got to tease it into action, so I did a quick dirty little hack in Kodi to try and force the issue.

Just need a Guinea Pig to test EAC3 and DTS-HD MA...

LibreELEC-Odroid_C2.aarch64-7.0.1.EAC3.DTSHD.tar

Tested this new DTS-HD build with my MKV movies and those 3 sample files (http://kodi.wiki/view/Samples):
- 08. DTS-HD HRA 5.1 (in MKV @ 1080p/23.976 VC-1)
- 10. DTS-HD MA 5.1 Channel Check (in M2TS @ 1080p/23.976)
- 12. DTS-HD MA 7.1 'Dredd' Audio Channel Check (in M2TS @ 1080p/23.976) (thanks looun)

First test:
*enabled in settings the DTS-HD passthrough
*disabled DTS-HD decoding

1. played those 3 sample files.. none played sound. The Receiver flashed the HDMI sign, that means usually it cannot handshake something. But videostream plays
2. Playing one of my DTS-HRA and also a DTS-HD mkv movie: The same hdmi blinking with picture but no sound.
3. playing simple DTS (-core) movie (not DTS-HD) does passthrough DTS correctly as it should. But this is not a DTS-HD audiostream, just the core.


Second test:
*disabled DTS-HD passthrough
*enabled DTS-HD decoding

1. playing those 3 sample files outputs always PCM 2.0
2. playing DTS-HRA movie outputs (flawlessly) PCM 2.0 to my receiver and plays it fine
3. playing simple DTS movie outputs also PCM 2.0

So the decoding works only from multichannel to 2.0 PCM unfortunately


also Strange behavior:

If passthrough is disabled for DTS but enabled for DTS-HD, then all those DTS-HD files play PCM 2.0 (though decoding DTS-HD is disabled) and also regular DTS files play PCM 2.0. So decoding is somehow turned on unintentionally.
If passthrough is enabled for DTS and for DTS-HD, then DTS is passedthrough correctly to DTS but DTS-HD does not handshake as described in observations at beginning of my post.