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INSTALL.md

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BlueALSA Installation

Given its aim of small size and minimum redundancy, BlueALSA makes many of its features optional and only includes them when explicitly requested when configuring the build. The number of options is therefore large, too large to be covered fully here. For a comprehensive installation guide, please look at the Installation from source project wiki page. If you've found something missing or incorrect, feel free to make a wiki contribution.

Configuration

Firstly, create the configure script. Run, in the top level project directory:

autoreconf --install

then, to see a complete list of all options:

./configure --help

Dependencies:

  • alsa-lib >= 1.0.27
  • bluez >= 5.51
  • glib >= 2.58.2 with GIO support
  • sbc >= 1.5
  • docutils (when man pages build is enabled with --enable-manpages)
  • fdk-aac (when AAC support is enabled with --enable-aac)
  • lc3 >= 1.0.0 (when LC3-SWB support is enabled with --enable-lc3-swb)
  • lc3plus (when LC3plus support is enabled with --enable-lc3plus)
  • libldac (when LDAC support is enabled with --enable-ldac)
  • libopenaptx (when apt-X support is enabled and --with-libopenaptx is used)
  • mp3lame (when MP3 support is enabled with --enable-mp3lame)
  • mpg123 (when MPEG decoding support is enabled with --enable-mpg123)
  • openaptx (when apt-X support is enabled with --enable-aptx and/or --enable-aptx-hd)
  • opus (when Opus support is enabled with --enable-opus)
  • spandsp (when mSBC support is enabled with --enable-msbc)

Dependencies for client applications (e.g. bluealsactl or bluealsa-aplay):

Dependencies for bluealsa-rfcomm (when --enable-rfcomm is specified during configuration):

Dependencies for hcitop (when --enable-hcitop is specified during configuration):

If it is intended to use BlueALSA on a system that uses systemd, then it is recommended to include the option --enable-systemd as this will create service unit files. See the systemd integration wiki page for more information.

If intending to run the bluealsad daemon as a non-root user then it is recommended to use the --with-bluealsaduser=USER option as this will configure the BlueALSA D-Bus policy file with correct permissions for that user account, and also include that user in the systemd service unit file when used in combination with --enable-systemd.

If not using systemd, then some manual setup of the host will be required, see Runtime Environment below.

Once the desired options have been chosen, run:

mkdir build && cd build
../configure [ OPTION ... ]

Build

When the project is configured, compile it by running in the build directory:

make

When building from the git sources, if git pull is used to update the source tree, then it is recommended to refresh the build in order to update the version identifier embedded in the configure files. In the top-level directory run:

autoreconf --install --force

then in the build directory run make clean before running make.

Installation

The built components can be installed on the local system with

sudo make install

To install into a directory that can be packaged and copied to other hosts (for example a directory called BLUEALSA):

sudo make DESTDIR=BLUEALSA install

Runtime Environment

Storage directory

When using systemd, all the necessary files and directories are created by the bluealsa.service unit at runtime. If not using systemd, or if the --enable-systemd option was not used during configuration, then it is necessary to manually create the directory used by BlueALSA for persistent state storage. This directory should be called bluealsa and be located under the system local state directory, which is normally /var/lib. The directory owner must be the user account that the bluealsad daemon is run under, and to prevent accidental corruption of the state files the permissions should be rwx------. For example, on a standard file hierarchy, with the bluealsad daemon running as user bluealsa:

sudo mkdir /var/lib/bluealsa
sudo chown bluealsa /var/lib/bluealsa
sudo chmod 0700 /var/lib/bluealsa

User accounts

The BlueALSA installation does not create any user accounts.

D-Bus policy

A D-Bus policy file is required to enable the bluealsad daemon to register with D-Bus as a service. The default policy file created by the BlueALSA installation enables root to register the service org.bluealsa and enables members of the group audio to use BlueALSA PCMs and the BlueALSA mixer. If the option --with-bluealsaduser=USER was used when configuring then the policy file enables user USER instead of root to register the org.bluealsa service. If that option was not used, then it is necessary to edit the policy file to grant permission to a non-root user. The policy file is located at

/usr/share/dbus-1/system.d/org.bluealsa.conf.

For example:

<!-- This configuration file specifies the required security policies
     for BlueALSA core daemon to work. -->

<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
 "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
<busconfig>

  <!-- ../system.conf have denied everything, so we just punch some holes -->

  <policy user="bluealsa">
    <allow own_prefix="org.bluealsa"/>
    <allow send_destination="org.bluealsa"/>
  </policy>

  <policy group="audio">
    <allow send_destination="org.bluealsa"/>
  </policy>

</busconfig>