I captured the packets of Foobar2000 and Sony Music Center and did some comparisons.
They have two behaviors before calling SetAVTransportURI request for UPnP as follows…
AVTransport:1#Stop => ConnectionManager:1#GetProtocolInfo => [AVTransport:1#SetAVTransportURI]
AVTransport:1#Stop
ConnectionManager:1#GetProtocolInfo
AVTransport:1#SetAVTransportURI
I looked up information about SONY’s operation of UPnP for devices on the internet:
The AVTransport:1#Stop command ensures that SONY devices avoid SetAVTransportURI requests returning 500 errors
I used Device Spy to do some testing, calling SetAVTransportURI on SONY devices never succeeded.
It returned the same error message as TuneBrowser player.
I’m not sure, because I didn’t spend time coding for UPnP testing (this obviously requires coding to test)…
I just tested Foobar2000 and Sony Music Center, they both succeeded in playing music.
PS: Also they both added “User-Agent” information in the header, I don’t think it has any effect
