100 lines
3.8 KiB
Markdown
100 lines
3.8 KiB
Markdown
Shairport Sync on FreeBSD using `sndio`
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----
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Shairport Sync runs natively on FreeBSD using the `sndio` back end, thanks to the work of [Tobias Kortkamp (t6)](https://github.com/t6).
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[`sndio`](http://www.sndio.org) is *"a small audio and MIDI framework part of the OpenBSD project and ported to FreeBSD, Linux and NetBSD"* developed by Alexandre Ratchov (see also [this paper](http://www.openbsd.org/papers/asiabsdcon2010_sndio.pdf) for more details).
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This is an initial note about installing Shairport Sync on FreeBSD.
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The build instructions here install back ends both for `sndio` and ALSA. ALSA is, or course, the Advanced Linux Sound Architecture, so it is not "native" to FreeBSD, but has been ported to some architectures under FreeBSD.
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General
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----
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This build was done on a default build of `FreeBSD 11.0-RELEASE-p9`.
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First, update everything:
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```
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# freebsd-update fetch
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# freebsd-update install
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```
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Next, install the `pkg` package manager and update its lists:
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```
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# pkg
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# pkg update
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```
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Subsystems
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----
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Install the Avahi subsystem. FYI, `avahi-app` is chosen because it doesn’t require X11. `nss_mdns` is included to allow FreeBSD to resolve mDNS-originated addresses – it's not actually needed by Shairport Sync. Thanks to [reidransom](https://gist.github.com/reidransom/6033227) for this.
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```
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# pkg install avahi-app nss_mdns
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```
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Add these lines to `/etc/rc.conf`:
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```
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dbus_enable="YES"
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avahi_daemon_enable="YES"
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```
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Next, change the `hosts:` line in `/etc/nsswitch.conf` to
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```
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hosts: files dns mdns
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```
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Reboot for these changes to take effect.
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Building
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----
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Install the packages that are needed for Shairport Sync to be downloaded and built successfully:
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```
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# pkg install git autotools pkgconf popt libconfig openssl sndio alsa-utils
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```
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Add `alsa-utils` if you're wish to use ALSA. Omit `sndio` if you don't intend to use the `sndio` subsystem.
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Now, download Shairport Sync from GitHub:
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```
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$ git clone https://github.com/mikebrady/shairport-sync.git
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$ cd shairport-sync
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```
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Next, configure the build and compile it:
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```
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$ autoreconf -i -f
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$ ./configure --with-libdaemon --with-avahi --with-ssl=openssl --with-sndio --with-libdaemon --with-os=freebsd --with-freebsd-service
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$ make
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```
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Add `--with-alsa` if you wish to include the ALSA back end. Omit the `--with-sndio` if you don't want the `sndio` back end. Omit the `--with-freebsd-service` if you don't want to install a FreeBSD startup script, runtime folder and user and group -- see below for more details.
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Installation
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----
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Enter the superuser mode and do a `make install`:
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```
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$ su
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# make install
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```
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With the `./configure` options shown above, this will install the `shairport-sync` program along with a sample configuration file at `/usr/local/etc/shairport-sync.conf`. A service startup script will also be installed to launch Shairport Sync as a daemon. In addition, a `shairport-sync` user and group will be added and a directory will be created at `/var/run/shairport-sync` owned by the user `shairport-sync`. This will be used to hold the daemon's PID file.
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Finally, edit `/usr/local/etc/shairport-sync.conf` to customise your installation, e.g. service name, etc. To make the `shairport-sync` daemon load at startup, add the following line to `/etc/rc.conf`:
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```
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shairport_sync_enable="YES"
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```
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You can launch the service as superuser, or simply reboot the machine.
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Using the `sndio` backend
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----
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The `sndio` back end does not yet have a hardware volume control facility. You should set the volume to maximum before use, using, for example, the `mixer` command described below.
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Setting Overall Volume
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----
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The `mixer` command can be used for setting the output device's volume settings. You may have to experiment to figure out which settings are appropriate.
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```
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$ mixer vol 100 # sets overall volume
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```
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If you've installed `alsa-utils`, then `alsamixer` and friends will also be available.
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