Bluetooth alsa a2dp non regression cookbook
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I) PCM test tool shipped with ALSA

Setup:
*Download the alsa-utils source for the binary that run on your machine
*build the pcm executable in the test directory

Run:
./pcm -c 2 -r 48000 -Dbluetooth -m write -b 10000
./pcm -c 2 -r 48000 -Dbluetooth -m write_and_poll -b 10000
./pcm -c 2 -r 48000 -Dbluetooth -m direct_write -b 10000

Result:
You should hear a clear sine in the headset.
pcm process should not eat 100% cpu (check with top)
Occasionnal sound drops are OK (due to quite short buffering of 10 ms)

II) Play a file from XMMS

III) Play file from totem
Setup:
* gconftool -t string -s /system/gstreamer/0.10/default/musicaudiosink "alsasink device=bluetooth"

Run:
Launch totem, then select a file for play

III) PLay a file from mplayer
mplayer -ao alsa:device=bluetooth filetoplay.wav