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+<div id="header">
+<h1>Upmpdcli: an UPnP Renderer Front-End to the Music Player Daemon</h1>
+</div>
+<div id="content">
+<div class="sect1">
+<h2 id="upmpdcli.intro">Introduction</h2>
+<div class="sectionbody">
+<div class="paragraph"><p><strong>upmpdcli</strong> is an UPnP Media Renderer front-end to <strong>MPD</strong>, the Music Player
+Daemon. It turns <strong>MPD</strong> into an UPnP Media Renderer, supporting gapless
+track transitions.</p></div>
+<div class="paragraph"><p><strong>upmpdcli</strong> is open-source, free and licensed under the GPL. It is written
+in C++ and uses the <strong>libupnp</strong> (1.6) and <strong>libmpdclient</strong> libraries.</p></div>
+<div class="paragraph"><p>The typical setup is a home network with:</p></div>
+<div class="ulist"><ul>
+<li>
+<p>
+An UPnP media server (e.g. <strong>Minidlna</strong>, <strong>Mediatomb</strong>, or some commercial
+  device).
+</p>
+</li>
+<li>
+<p>
+An UPnP control point (e.g. <strong>Audionet</strong> or <strong>Bubble UPnP</strong> running on a
+  tablet or phone).
+</p>
+</li>
+<li>
+<p>
+<strong>MPD</strong> running on some Linux device (e.g. Raspberry PI hooked up to your
+  bedroom stereo).
+</p>
+</li>
+<li>
+<p>
+<strong>upmpdcli</strong> running on any Linux computer on the network (the same as
+  <strong>MPD</strong> or not). It will be discovered by the UPnP control point in a
+  standard fashion.
+</p>
+</li>
+</ul></div>
+<div class="imageblock" style="float:right;">
+<div class="content">
+<img src="upmpdcli.png" alt="Basic flow" />
+</div>
+</div>
+<div class="paragraph"><p>In this usage, <strong>MPD</strong> does not manage the audio files directly and its
+configured music directory will typically be empty. It fetches them from
+the Media Server through HTTP, using the <strong>curl</strong> input plugin, and does not
+need a local tags database.</p></div>
+<div class="paragraph"><p>When used with an appropriate control point, the <strong>upmpdcli</strong>/<strong>MPD</strong>
+combination supports gapless playback.</p></div>
+<div class="paragraph"><p><em>What&#8217;s the point ?</em> If you are running an UPnP network with multiple
+devices, you may prefer to use a single control application (UPnP-based)
+for everything. <strong>MPD</strong> is a very capable and robust music-playing application,
+which runs well on small computers (e.g. Raspberry PI or other "plug" type
+computers). However it needs a specific control application.</p></div>
+<div class="paragraph"><p><strong>upmpdcli</strong> lets you control your <strong>MPD</strong>-based players with your UPnP control
+point.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_configuration">Configuration</h2>
+<div class="sectionbody">
+<div class="paragraph" id="upmpdcli.config"><p>See the man page for command line details. In most situations, <strong>upmpdcli</strong>
+will be run as follows:</p></div>
+<div class="literalblock">
+<div class="content">
+<pre><tt>upmpdcli -D -c /etc/upmpdcli.conf</tt></pre>
+</div></div>
+<div class="paragraph"><p>The <tt>-D</tt> option tells <strong>upmpdcli</strong> to fork and run in background. The <tt>-c</tt>
+option specifies a configuration file.</p></div>
+<div class="paragraph"><p>The configuration file has a simple <tt>name = value</tt> format.</p></div>
+<div class="paragraph"><p>The configuration parameters can be set from the command line, a
+configuration file, or the environment in this order of priority. It would
+be rather confusing to use a mix of methods, so you should probably chose
+one.</p></div>
+<div class="paragraph"><p>The following parameters can be set:</p></div>
+<div class="tableblock">
+<table rules="all"
+width="100%"
+frame="border"
+cellspacing="0" cellpadding="4">
+<col width="25%" />
+<col width="25%" />
+<col width="25%" />
+<col width="25%" />
+<tbody>
+<tr>
+<td align="left" valign="top"><p class="table">What</p></td>
+<td align="left" valign="top"><p class="table">Command line</p></td>
+<td align="left" valign="top"><p class="table">Environment</p></td>
+<td align="left" valign="top"><p class="table">Config variable</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Configuration file name</p></td>
+<td align="left" valign="top"><p class="table">-c config</p></td>
+<td align="left" valign="top"><p class="table">$UPMPD_CONFIG</p></td>
+<td align="left" valign="top"><p class="table"></p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Host name or IP address where <strong>MPD</strong> runs</p></td>
+<td align="left" valign="top"><p class="table">-h mpdhost</p></td>
+<td align="left" valign="top"><p class="table">$UPMPD_HOST</p></td>
+<td align="left" valign="top"><p class="table">mpdhost</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">TCP port for <strong>MPD</strong></p></td>
+<td align="left" valign="top"><p class="table">-p mpdport</p></td>
+<td align="left" valign="top"><p class="table">$UPMPD_PORT</p></td>
+<td align="left" valign="top"><p class="table">mpdport</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Do we own the <strong>MPD</strong> queue and fearlessly clear it</p></td>
+<td align="left" valign="top"><p class="table">-o 0/1</p></td>
+<td align="left" valign="top"><p class="table"></p></td>
+<td align="left" valign="top"><p class="table">ownqueue</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">UPnP "friendly name" for the device. This gets displayed in network search
+  results.</p></td>
+<td align="left" valign="top"><p class="table">-f friendlyname</p></td>
+<td align="left" valign="top"><p class="table">$UPMPD_FRIENDLYNAME</p></td>
+<td align="left" valign="top"><p class="table">friendlyname</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Log file name. Leave empty for stderr</p></td>
+<td align="left" valign="top"><p class="table">-d logfilename</p></td>
+<td align="left" valign="top"><p class="table"></p></td>
+<td align="left" valign="top"><p class="table">logfilename</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">Verbosity level (0-4)</p></td>
+<td align="left" valign="top"><p class="table">-l loglevel</p></td>
+<td align="left" valign="top"><p class="table"></p></td>
+<td align="left" valign="top"><p class="table">loglevel</p></td>
+</tr>
+</tbody>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="upmpdcli.boot">Boot time startup</h2>
+<div class="sectionbody">
+<div class="paragraph"><p><strong>upmpdcli</strong> will will try to change its <tt>uid</tt> to user <tt>upmpdcli</tt> if it is
+started by root. It will refuse to run if the user does not exist.</p></div>
+<div class="paragraph"><p>If started by <tt>root</tt>, <strong>upmpdcli</strong> will also write its process id to
+<tt>/var/run/upmpdcli.pid</tt>.</p></div>
+<div class="paragraph"><p>There are boot-time startup scripts in the <tt>debian/</tt> directory inside the
+source tree (for Debian/Ubuntu/Mint/Raspbian etc.). There is also a systemd
+service file under <tt>systemd/</tt> (for Fedora et al.).</p></div>
+<div class="paragraph"><p>The boot scripts are installed by the pre-built packages, so will just have
+to edit the configuration file after installing them, all the rest should
+just work.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="upmpdcli.building">Building</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>For building from source, you will need a recent <tt>C++</tt> compiler (<tt>C++11</tt>),
+and the development packages for <strong>libupnp</strong> version 1.6, and <strong>libmpdclient</strong>.</p></div>
+<div class="paragraph"><p>If you are using the source from Github, you will also need the
+autoconf/automake/libtool trio. Use the <tt>autogen.sh</tt> script to set things
+up.</p></div>
+<div class="paragraph"><p>Otherwise, the procedure is standard and there are currently no specific
+configure options:</p></div>
+<div class="literalblock">
+<div class="content">
+<pre><tt>configure --prefix=/usr
+make
+sudo make install</tt></pre>
+</div></div>
+</div>
+</div>
+</div>
+<div id="footnotes"><hr /></div>
+<div id="footer">
+<div id="footer-text">
+Last updated 2014-03-28 14:47:32 CET
+</div>
+</div>
+</body>
+</html>