Melco Audiophile NAS

[simoncn]

(11-01-2015 10:46)DavidHB Wrote:  We may both be getting muddled (my fault, I fear). My understanding now is that RTP/RTTP is a transport layer protocol, and so is a counterpart to TCP/IP rather than HTTP. TCP/IP is documented as being unsuitable for real-time use (as it favours reliability over timeliness), so, if UPnP actually runs in HTTP on TCP/IP (I haven't managed to check that point), you can see the need for buffering. I think I'm in danger of going off topic, so I'll leave it there.

David

I think it's the need for buffering that motivates the use of HTTP rather than the other way round. When the source stream is being read from a server HDD or a remote internet endpoint, there is no possibility of end-to-end real-time transmission, so receiver buffering is required and HTTP is the most suitable protocol.