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= Upmpdcli: MPD UPnP Renderer Front-End
*upmpdcli* is an UPnP Media Renderer front-end to *MPD*, the Music Player
Daemon. It supports both pure UPnP and the OpenHome ohMedia services.
[[upmpdcli.security]]
== Security
*upmpdcli* is not audited for security issues, and, as far as I
know, it may be full of exploitable bugs. Do not run it on an
Internet-facing host.
[[upmpdcli.config]]
== Configuration
See the man page for command line details. In most situations, *upmpdcli*
will be run as follows:
upmpdcli -D -c /etc/upmpdcli.conf
The `-D` option tells *upmpdcli* to fork and run in background. The `-c`
option specifies a configuration file.
The configuration file has a simple `name = value` format.
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. Some less common parameters can only be set in the configuration file.
All parameters have defaults, and a typical installation needs no
modification of the configuration file. If several instances of *upmpdcli*
run on the same network, you will want to give them distinct names
(_friendlyname_ parameter). The other parameters are only useful in special
situations.
The following parameters can be set:
|========================
|What|Command line|Environment|Config variable
|Configuration file name|-c config|$UPMPD_CONFIG|
|Host name or IP address where *MPD* runs|-h mpdhost|$UPMPD_HOST|mpdhost
|TCP port for *MPD*|-p mpdport|$UPMPD_PORT|mpdport
|*MPD* password|||mpdpassword
|Do we own the *MPD* queue and fearlessly clear it|-o 0/1||ownqueue
|UPnP "friendly name" for the device. This gets displayed in network search
results.|-f friendlyname|$UPMPD_FRIENDLYNAME|friendlyname
|Log file name. Leave empty for stderr|-d logfilename||logfilename
|Verbosity level (0-4)|-l loglevel||loglevel
|UPnP network interface|-i iface|$UPMPD_UPNPIFACE|upnpiface
|UPnP IP address (if interface not set)|||upnpip
|UPnP port|-p port|$UPMPD_UPNPPORT|upnpport
|OpenHome support switch|-O 0/1||openhome
|OpenHome playlist disk persistence (default 1)|||ohmetapersist
|Path to icon to be displayed by control point. <<upmpdcli.iconpathnote,See
note>>|||iconpath
|===========================
[[upmpdcli.iconpathnote]]
*iconpath* note: the UPnP protocol has provisions for a renderer to send
the URL to a descriptive icon as part of the device description. The icon
to use can be set using the *iconpath* configuration file parameter. Due to
current (and probably permanent) *upmpdcli* limitations, the image file
*must* be a 64x64 32 bits-per-pixel png file.
[[upmpdcli.openhome]]
== OpenHome ohMedia services
The support for ohMedia services (play queue managed by the player instead
of on the control point) is activated by default as of release 0.8.0, only
an explicit option will turn it off.
The previous version default was set to _off_ in the software, and _on_ in
the configuration file. As the configuration file is not usually
overwritten during an upgrade, if you are upgrading to 0.7.x from an
earlier version and you want to enable the services, you need to set the
option in the configuration file.
[[upmpdcli.boot]]
== Boot time startup
*upmpdcli* will try to change its `uid` to user `upmpdcli` if it is
started by root. It will refuse to run if the user does not exist.
If started by `root`, *upmpdcli* will also write its process id to
`/var/run/upmpdcli.pid`.
There are boot-time startup scripts in the `debian/` directory inside the
source tree (for Debian/Ubuntu/Mint/Raspbian etc.). There is also a systemd
service file under `systemd/` (for Fedora et al.).
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.
[[upmpdcli.building]]
== Building
For building from source, you will need a recent `C++` compiler (`C++11`),
and the development packages for *libupnp* version 1.6, *libmpdclient*, and
*libexpat*.
If you are using the source from Github, you will also need the
autoconf/automake/libtool trio. Use the `autogen.sh` script to set things
up.
Otherwise, the procedure is standard and there are currently no specific
configure options:
configure --prefix=/usr
make
sudo make install