(cherry picked from commit b8efaf1f66)
b8efaf1f66
introduce `calls_sip_media_manager_get_capabilities ()` which takes a GList of MediaCodecInfo's as input to generate a SDP message. If using in an SDP answer we simply feed it a list of the common codecs as gathered from the SDP offer.
* pipeline: we should bind the used socket of our udpsink to the socket udpsrc