A2DP
From Openmoko
The A2DP bluetooth profile allows high quality audio to be transferred from the phone.
This page describes how to setup A2DP on the Freerunner.
Contents |
How to setup A2DP manually
This information is mostly taken from this mail thread. It has been tested on FDOM and FSO milestone 5, but should also work on 2008.12.
1. Check installed packages
First check that you have the correct package versions installed with grep blue. The versions should be these:
bluez-audio - 3.33-r3 bluez-utils - 3.33-r3 bluez-utils-alsa - 3.33-r3 bluez-utils-compat - 3.33-r3 libbluetooth2 - 3.33-r0
2. Add bluetooth device to /etc/asound.conf
Your /etc/asound.conf should contain these:
pcm.!default { type plug slave.pcm "dmix" } ctl.mixer0 { type hw card 0 } pcm.bluetooth { type bluetooth device "XX:XX:XX:XX:XX:XX" profile "auto" }
XX:XX:XX should be replaced with your device ID.
3. Connect to the device
Turn on bluetooth in the GUI and then do
export DEVICE=XX:XX:XX:XX:XX:XX /etc/init.d/bluetooth stop /etc/init.d/bluetooth start passkey-agent --default 0000 & dbus-send --system --type=method_call --print-reply --dest=org.bluez /org/bluez/hci0 org.bluez.Adapter.CreateBonding string:$DEVICE dbus-send --system --print-reply --dest=org.bluez /org/bluez org.bluez.Manager.ActivateService string:audio dbus-send --system --type=method_call --print-reply --dest=org.bluez /org/bluez/audio org.bluez.audio.Manager.CreateDevice string:$DEVICE dbus-send --system --type=method_call --print-reply --dest=org.bluez "/org/bluez/audio/device0" org.bluez.audio.Sink.Connect
If the last step fails, see to it that the device returned in the step before is device0 - otherwise use the other number.
4. Start playing
To play a file with mplayer use the following command:
mplayer -ao alsa:device=bluetooth /path/to/file.ogg
Potential troubles
- If you experience problems with choppiness, try changing your hcid.conf to include "lm accept,master;" and "lp hold,sniff,park;" You may also have to bond (commonly known as 'pairing') your phone and your headset. See http://wiki.bluez.org/wiki/HOWTO/Bonding for details. Mercury 17:36, 5 September 2008 (UTC)