Does Cantata enable playing of hi-rez DSD audio (.dsf & .dff files) or not?

Question

Which version of Cantata?
1.5.2

Which build? KDE, Qt4, Qt5, Windows, Ubuntu, Mac?
Ubuntu-MATE 14.04 LTS

What steps will reproduce the problem?
1. Play any .dsf or .dff (DSD audio) file;
2. You'll notice that the bit-rate is a low 44100 or 48000;
3. instead of the higher bit-rates.

What is the expected output? What do you see instead?
A bit-rate of either 192000, 352800, or 384000 is expected.

Please provide any additional information below.

High-resolution DSD (Direct Stream Digital) audio works fine with all the other 
MPD clients I've used: GMPC, Glurp, mpc, ncmpc, and ncmpcpp.  

But not with Cantata, as far as I've been able to determine.

The .dsf file extension I'm referring to is this: (DSD) Storage Facility files 
(DSF), a digital audio file format and file extension (.dsf).

The .dff extension is the DSD Interchange File Format (DSDIFF) (.dff).

These are the two DSD audio-file extensions.

I don't know what the mime-types for .dsf and .dff are, and they may not even 
be defined.  Or they may be any of:

audio/dsd
audio/x-dsf
audio/x-dff

Searching on what the mime-types are has yielded very little.

From DSD-Guide.com:

DSD or Direct Stream Digital is a one bit recording format.  DSF and DFF are 
'kinds' of audio files that are delivered as downloads or read by software for 
playback. 

DSF has the ability to hold metadata and DFF doesn't, however, some players 
only read DFF files.

In PCM recording, DSF and DFF would be similar to having .wav and .aiff files 
which are both PCM.

More complex answers to the above question exists, but for those new to DSD, 
this is a simple explanation.

SACD (Super audio CD) is a container by which to put DSD audio onto a physical 
medium like a CD or a DVD.

Many DACs play .dsf and .dff files via something known as DoP (DSD over PCM). 
http://dsd-guide.com/dop-open-standard

https://en.wikipedia.org/wiki/Direct_Stream_Digital

Original issue reported on code.google.com by watchpac....com on 28 Mar 2015 at 6:02

该提问来源于开源项目：CDrummond/cantata

Answer 1

Where I wrote "A bit-rate of either 192000, 352800, or 384000 is expected"  
above, (and my other references to "bit-rates") I meant SAMPLING rates, not bit 
rates.  DSD, as mentioned above, is actually a one-bit format, generally using 
a sampling rate of 28 million samples per second (60 times the 44100 sampling 
rate of an ordinary CD), or higher.

Original comment by watchpac....com on 28 Mar 2015 at 6:18