title: RTSP client using VLC library
body: <p>I should write RTSP client in c programming using VLC library , I have some questions about this : </p>
  
  <ol>
  <li>I didn't find any already function in VLC library to send RTSP SETUP
  request , should I write it from scratch ?</li>
  <li>When I send the RTSP SETUP request , I must open 2 sockets for RTP
  and RTCP to send its ports number to live555 media server to receive
  the data through these port , Do you need to open another socket for
  UDP to receive the response of RTSP SETUP/PLAY/PAUSE/STOP request to
  control the transmission data process ?</li>
  <li>When I want to pause the transmission data process at application
  layer , I should send RTSP PAUSE request to server and send PAUSE
  request to player to stop the transmission data process temporarily, but I don't know what functions in VLC library are used for this
  purpose , can you tell me about  what these functions are?</li>
  </ol>
  
  <p>Thank you.</p>