let sdp_data = "v=0\r
o=jdoe 2890844526 2890842807 IN IP4 10.47.16.5\r
s=SDP Seminar\r
i=A Seminar on the session description protocol\r
u=http://www.example.com/seminars/sdp.pdf\r
[email protected] (Jane Doe)\r
c=IN IP4 224.2.17.12/127\r
t=2873397496 2873404696\r
a=recvonly\r
m=audio 49170 RTP/AVP 0\r
m=video 51372 RTP/AVP 99\r
a=rtpmap:99 h263-1998/90000\r\n";
  if let Ok((_, sdp_msg)) = parse_sdp_offer(sdp_data.as_ref()) {
    println!("{:?}", &sdp_msg);
  }