
Receive a stream in realtime:
<div class="example">
<pre class="example">ffmpeg -rtsp_flags listen -i rtsp://ownaddress/live.sdp <var>output</var>
</pre></div>
</li></ul>

<a name="sap"></a>
<h2 class="section"><a href="ffmpeg-protocols.html#toc-sap">3.29 sap</a></h2>

<p>Session Announcement Protocol (RFC 2974). This is not technically a
protocol handler in libavformat, it is a muxer and demuxer.
It is used for signalling of RTP streams, by announcing the SDP for the
streams regularly on a separate port.
