[Serusers] rtp session recordings

In February support for recording RTP sessions was added to rtpproxy (-r), but there doesn't appear to be any documentation about it, in the source, doc files, or on the web site; or even any discussion on this list.

Can anyone suggest any tools that can manipulate, convert, or play the resulting rtp/rtcp files that -r dumps out? Are they simply clumps of g729a data (or whatever codec was used for the call) arranged in RTP format? (I'm not familiar with either format at the binary level).

We're basically looking to implement some sort of solution for a client that can automatically archive certain calls for training.

Thanks for any info. Jeremy