Is it possible this could be added in a future driver release?
FFMPEG already supports the related formats and powerful PCs can decode it to PCM but 5.1 DSD decode is very intensive for an HTPC and quite a few home cinema amps support raw DSD over HDMI.
Can anyone answer this?
DSD is an option in HDMI 1.2 and above, it is another bit-stream format which has a different header to DTS HD and TrueHD. FFMPEG and Kodi already support the related file format of DSD and DSF but decode to PCM is very CPU intensive and is not lossless.