title: How to turn off vlcpulse audio from python program?
body: <p>I'm using vlc-python bindings to play an RTSP stream on Raspberry pi3. How do I turn off vlcpulse? I don't need audio for now.</p>
  
  <pre><code>&gt;&gt;&gt; player.audio_set_volume(0)
  0
  This reduced the error messages from 2 to 1 but 
  &gt;&gt;&gt; player = vlc.MediaPlayer("rtsp://192.168.77.114/unicast")
  [015212f0] vlcpulse audio output error: PulseAudio server connection failure: Connection refused
  
  &gt;&gt;&gt; player = vlc.MediaPlayer("rtsp://192.168.77.114/unicast")
  [015212f0] vlcpulse audio output error: PulseAudio server connection failure: Connection refused
  &gt;&gt;&gt;
  </code></pre>
  
  <p>Expected result: rtsp stream playing without audio and any error<br>
  Actual result: PulseAudio is complaining</p>