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147 lines
3.8 KiB
Markdown
147 lines
3.8 KiB
Markdown
# forked-daapd and Pulseaudio
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Credit: [Rob Pope](http://robpope.co.uk/blog/post/setting-up-forked-daapd-with-bluetooth)
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System mode is generally only recommended for headless servers, i.e.,
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systems without desktop users.
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## User Mode with Network Access
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If there is a desktop user logged in most of the time, a setup with
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[network access via localhost
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only](http://billauer.co.il/blog/2014/01/pa-multiple-users/)
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for daemons is a more appropriate solution, since the normal user
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administration (with, e.g., `pulseaudio -k`) works as
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advertised. Also, the user specific configuration for pulseaudio is
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preserved across sessions as expected.
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Quoting from the above blog, the necessary setup (per user) boils down
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to:
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### Step1: Copy system pulseaudio configuration to the users home directory
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```
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mkdir -p ~/.pulse
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cp /etc/pulse/default.pa ~/.pulse/
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```
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### Step 2: Enable TCP access from localhost only
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Edit the file `~/.pulse/default.pa` , adding the following line at the end:
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```
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load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1
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```
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### Step 3: Restart the pulseaudio deamon
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```
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pulseaudio -k
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# OR
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pulseaudio -D
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```
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### Step 4:
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In the `audio` section of `/etc/forked-daapd.conf`, set `server` to `localhost`:
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```
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server = "localhost"
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```
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## System Mode
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This guide was written based on headless Debian Jessie platforms. Most of the
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instructions will require that you are root.
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### Step 1: Setting up Pulseaudio in system mode with Bluetooth support
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If you see a "Connection refused" error when starting forked-daapd, then you
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will probably need to setup Pulseaudio to run in system mode [1]. This means
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that the Pulseaudio daemon will be started during boot and be available to all
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users.
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How to start Pulseaudio depends on your distribution, but in many cases you will
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need to add a pulseaudio.service file to /etc/systemd/system with the following
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content:
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```
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# systemd service file for Pulseaudio running in system mode
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[Unit]
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Description=Pulseaudio sound server
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Before=sound.target
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[Service]
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ExecStart=/usr/bin/pulseaudio --system --disallow-exit
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[Install]
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WantedBy=multi-user.target
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```
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If you want Bluetooth support, you must also configure Pulseaudio to load the
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Bluetooth module. First install it (Debian:
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`apt install pulseaudio-module-bluetooth`) and then add the following to
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/etc/pulse/system.pa:
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```
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#### Enable Bluetooth
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.ifexists module-bluetooth-discover.so
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load-module module-bluetooth-discover
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.endif
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```
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Now you need to make sure that Pulseaudio can communicate with the Bluetooth
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daemon through D-Bus. On Raspbian this is already enabled, and you can skip this
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step. Otherwise do one of the following:
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1. Add the pulse user to the bluetooth group: `adduser pulse bluetooth`
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2. Edit /etc/dbus-1/system.d/bluetooth.conf and change the policy for
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\<policy context="default"\> to "allow"
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Phew, almost done with Pulseaudio! Now you should:
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1. enable system mode on boot with `systemctl enable pulseaudio`
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2. reboot (or at least restart dbus and pulseaudio)
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3. check that the Bluetooth module is loaded with `pactl list modules short`
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### Step 2: Setting up forked-daapd
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Add the user forked-daapd is running as (typically "daapd") to the
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"pulse-access" group:
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```
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adduser daapd pulse-access
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```
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Now (re)start forked-daapd.
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### Step 3: Adding a Bluetooth device
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To connect with the device, run `bluetoothctl` and then:
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```
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power on
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agent on
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scan on
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**Note MAC address of BT Speaker**
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pair [MAC address]
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**Type Pin if prompted**
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trust [MAC address]
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connect [MAC address]
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```
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Now the speaker should appear in forked-daapd. You can also verify that
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Pulseaudio has detected the speaker with `pactl list sinks short`.
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---
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[1] Note that Pulseaudio will warn against system mode. However, in this use
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case it is actually the solution recommended by the [Pulseaudio folks themselves](https://lists.freedesktop.org/archives/pulseaudio-discuss/2016-August/026823.html).
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