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Libjingle
Libjingle is a set of components provided by Google to interoperate with Google
Talk's peer-to-peer and voice capabilities. This package will create several
static libraries you may link to your project as needed.
-talk - No source files in talk/, just these subdirectories
|-base - Contains basic low-level portable utility functions for
| things like threads and sockets
|-p2p - The P2P stack
|-base - Base p2p functionality
|-client - Hooks to tie it into XMPP
|-session - Signaling
|-phone - Signaling code specific to making phone calls
|-third_party - Components that aren't ours
|-mediastreamer - Media components for dealing with sound hardware and
| voice codecs
|-xmllite - XML parser
|-xmpp - XMPP engine
In addition, this package contains two examples in talk/examples which
illustrate the basic concepts of how the provided classes work.
The xmllite component of libjingle depends on expat. You can download expat
from http://expat.sourceforge.net/.
mediastreamer, the media components used by the example applications depend on
the oRTP and iLBC components from linphone, which can be found at
http://www.linphone.org. Linphone, in turn depends on GLib, which can be found
at http://www.gtk.org. This GLib dependency should be removed in future
releases.
Building Libjingle
Once the dependencies are installed, run ./configure. ./configure will return
an error if it failed to locate the proper dependencies. If ./configure
succeeds, run 'make' to build the components and examples.
When the build is complete, you can run the call example from
talk/examples/call and the pcp example from talk/examples/pcp.
Relay Server
Libjingle will also build a relay server that may be used to relay traffic
when a direct peer-to-peer connection could not be established. The relay
server will build in talk/p2p/base/relayserver and will listen on UDP
ports 5000 and 5001. See the Libjingle Developer Guide at
http://code.google.com/apis/talk/index.html for information about configuring
a client to use this relay server.
STUN Server
Lastly, Libjingle builds a STUN server which implements the STUN protocol for
Simple Traversal of UDP over NAT. The STUN server is built as
talk/p2p/base/stunserver and listens on UDP port 7000. See the Libjingle
Developer Guide at http://code.google.com/apis/talk/index.html for information
about configuring a client to use this STUN server.
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