[Speex-dev] RTP to Speex

Jean-Marc Valin Jean-Marc.Valin at USherbrooke.ca
Tue Jul 27 16:03:11 PDT 2010


If I understand your problem correctly, it should be as simple as dumping the
packets to an Ogg file. See the speexenc.c codec for details. All you should
have to do is change that to use the RTP payload instead of the bytes produced
by the encoder.

    Jean-Marc

Quoting Nathan Thatcher <n8thatcher at gmail.com>:

> First off I just want to thank everybody, especially Jean-Marc, for all
> their work on Speex. I have been using the codec in a call recording
> application for a couple of years now and it is great. My application is
> pretty simple, it just takes wav files created by a phone server, converts
> them to speex and makes them available for playback in a custom speex
> player. Speex was the perfect format for our application and it has worked
> really well for us so far, so thanks everybody.
>
> We are now moving our application into the VoIP call recording arena and I
> am looking for some direction. I have a layer 2 managed switch with one
> physical interface mirrored to another interface (AKA Port Mirroring). I
> have a phone server plugged into the first interface and my development
> machine is plugged into the second interface. I have a bunch of IP phones on
> the network and from the development machine I can see the RTP packets using
> pcap when I make a call.
>
> Now that I have all of the port mirroring in place I want to create speex
> files out of this streaming voip data. What is the best way to go about
> doing this?
>
> Thanks everybody,
>
> Nate
>





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