Roon to HQPlayer Protocol?

[The Computer Audiophile]

Hi Guys, does anyone know how Roon communicates with HQPlayer when sending audio to it? I believe it uses MPRIS when controlling the app, but I’m not sure about sending audio. 
 

The reason I ask is that I wonder if other UPnP/DLNA servers could be adapted to send audio the same way to HQPlayer. 
 

I know that HQPe accepts audio via UPnP, but that isn’t without its issues. A more native way to send audio would be fantastic. 

[Miska]

Roon uses HQPlayer control API, you can find reference implementation of the client side and hqp-control2 utility at the end of the page here:

https://www.signalyst.com/custom.html

 

This API is used also by other control applications, such as HQPlayer Client, HQPDcontrol and HQPWV.

 

If you need more details, just contact me.