The MQA decoder stuff is in a number of new high end audio products. MQA is 
very proprietary about it for good reason, the bulk of its design and execution 
is very close to HDCD which is patented. I wonder how many other devices are 
using MPD or other GPL code improperly.




-----Original Message-----
From: mpd-devel [mailto:mpd-devel-boun...@musicpd.org] On Behalf Of Max 
Kellermann
Sent: Thursday, January 25, 2018 2:12 PM
To: mpd-devel@musicpd.org
Subject: Re: [mpd-devel] Request for GPL source code of 
DMS-500_v1.30.9_20170802.zip

On 2018/01/25 22:58, Max Kellermann <m...@blarg.de> wrote:
> I downloaded
> http://58.22.61.211/rd3/DMS500/test_package/DMS-500_v1.30.9_20170802.z
> ip
> SHA-256=f56cb2f1ec46a2365fc0a7aa57c451693aa76f6a0ba4b46803e974acf4cd3b
> 04
> 
> That image contains a copy of the Music Player Daemon, of which I am a 
> copyright holder.

Some context for the curious: their MPD binary has a MQA decoder statically 
linked in.  We know MQA is a bullshit "codec", but AFAIK there exists no free 
"decoder".  Anyway, this is the most interesting GPL violation so far.

Max
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