[SR-Users] mediaproxy-ng Tutorial

[Andreas Granig]

Hi,

On 04/02/2013 05:14 PM, Dani Popa wrote:
> as far as i know, mediaproxy by AG Projects it's also kernel based
> forwarding, so i don't understand what is the reasons to use another
> mediaproxy let's say mediaproxy-ng.

Well, mediaproxy-ng development has started like 6 years ago as a 
replacement for mediaproxy (which at that point was python based and 
didn't do any kernel stuff) in our commercial solutions. This is the 
reason why there is still the "tcp" option in mediaproxy-ng to support 
the old control protocol used by kamailio's "mediaproxy" module. Around 
2-3 years ago we made it open source along with the sip:provider CE 
appliance.

The mediaproxy project has since evolved also to a kernel based project, 
and afaik the control protocol has changed as well, so both projects are 
not compatible anymore. I can't tell for sure the status of mediaproxy 
as we didn't use it since years. They are more opensips focused, but it 
probably works with kamailio as well (don't know though).

Since we switched to rtpproxy control protocol, it's a drop-in 
replacement for the rtpproxy project, which is pure user-space. There is 
some other rtpproxy control protocol compatible media replay 
(ipt_rtpproxy?) which I haven't used myself either.

So all in all, it's just about diversity, choose whatever suits you 
best. The only thing I can say for that matter is that Sipwise actively 
implements new features on top of mediaproxy-ng (with the new 
rtpproxy-ng kamailio module using a dictionary-based control protocol, 
which makes extending the protocol much easier in the future, and which 
passes back and forth the whole SDP body instead of just passing in some 
parameters and getting back out a new IP and port, which allows for 
advanced stuff like ICE manipulation, and in the future also transcoding 
etc).

Andreas