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Some tests with the userland ALSA plugin for A2DP: problem with changing tracks

Bluez-devel Rui Pedro Lopes 2 participants 3 messages Aug 30, 2006 Bluetooth drivers

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Rui Pedro Lopes

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#0 lore raw

Hi,

I've been experimenting with the user land ALSA plugin for A2DP from bluetooth-alsa project on Sourceforge.

It works fine (tried it with xmms and rhythmbox through gstreamer-alsa) but there is a problem when changing tracks. When a song ends and xmms jumps to the next track on the playlist, the sound no longer arrives the headphones. If I press Stop and the Play, it starts playing again. I send in attach the log of the debug messages for this behavior (current.log).

I then tried commenting the line for registering the close action like this:
static snd_pcm_ioplug_callback_t a2dp_callback = {

        .start                  = a2dp_start,
        .stop                   = a2dp_stop,
        .pointer                = a2dp_pointer,
        .transfer               = a2dp_transfer2,

//.close = a2dp_close,
.hw_params = a2dp_params,
.prepare = a2dp_prepare,
.drain = a2dp_drain,
.poll_descriptors_count = a2dp_descriptors_count,
.poll_descriptors = a2dp_descriptors,
.poll_revents = a2dp_poll,
};

It no longer fails when changing tracks. Apparently, it works flawlessly. I also send the log for debug messages in attach (no_close.log).

Cheers,

/rp

==== Starting xmms
Message: device: pcm.headphone

==== Pressing play
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_alloc: init
DEBUG: a2dp_connect: a2dp 0x825e1c8 (sk=0, control_sk=0)
DEBUG: connect_stream: Using address: 01:B7:43:44:0D:00
DEBUG: detect_a2dp: Found A2DP Sink
DEBUG: connect_stream: Found A2DP Sink at the destination
DEBUG: do_connect: Connected [imtu 672, omtu 672, flush_to 65535]
DEBUG: connect_stream: Sent the Stream End Point Discovery Command
DEBUG: connect_stream: Got a Stream End Point Discovery Response
DEBUG: connect_stream: received 1 capabilities
DEBUG: process_seid: SEID = 1
DEBUG: process_seid: Requested Capabilities for SEID = 1
DEBUG: process_seid: Got capabilities response
DEBUG: process_seid: Sent set configurations command
DEBUG: process_seid: Set configurations command accepted
DEBUG: process_seid: Sent open stream command
DEBUG: process_seid: Got open stream confirm
DEBUG: do_connect: Connected [imtu 672, omtu 678, flush_to 65535]
DEBUG: connect_stream: Sent stream start
DEBUG: connect_stream: Got start stream confirm
DEBUG: a2dp_constraint: TEST a2dp 0x825e1c8
DEBUG: a2dp_params: a2dp 0x825e1c8
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buffer_size 4096
DEBUG: a2dp_prepare: a2dp 0x825e1c8
Listen thread running
Awaiting command
SBC Bandwidth = 27 kbps [27945 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
Awaiting command
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
Awaiting command
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]

==== Pressing Stop
DEBUG: a2dp_stop: a2dp 0x825e1c8
DEBUG: a2dp_stop: Listen thread terminating Thread in signal handler 14
Error while receiving -1 (errno=4:Interrupted system call)
listen_thread: ending perfeclty
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x825e1c8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_close: a2dp Destroying 0x825e1c8
DEBUG: a2dp_close: OK

==== Pressing Play
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_alloc: init
DEBUG: a2dp_connect: a2dp 0x823ff68 (sk=0, control_sk=0)
DEBUG: connect_stream: Using address: 01:B7:43:44:0D:00
DEBUG: detect_a2dp: Found A2DP Sink
DEBUG: connect_stream: Found A2DP Sink at the destination
DEBUG: do_connect: Connected [imtu 672, omtu 672, flush_to 65535]
DEBUG: connect_stream: Sent the Stream End Point Discovery Command
DEBUG: connect_stream: Got a Stream End Point Discovery Response
DEBUG: connect_stream: received 1 capabilities
DEBUG: process_seid: SEID = 1
DEBUG: process_seid: Requested Capabilities for SEID = 1
DEBUG: process_seid: Got capabilities response
DEBUG: process_seid: Sent set configurations command
DEBUG: process_seid: Set configurations command accepted
DEBUG: process_seid: Sent open stream command
DEBUG: process_seid: Got open stream confirm
DEBUG: do_connect: Connected [imtu 672, omtu 678, flush_to 65535]
DEBUG: connect_stream: Sent stream start
DEBUG: connect_stream: Got start stream confirm
DEBUG: a2dp_constraint: TEST a2dp 0x823ff68
DEBUG: a2dp_params: a2dp 0x823ff68
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buffer_size 4096
DEBUG: a2dp_prepare: a2dp 0x823ff68
Listen thread running
Awaiting command
SBC Bandwidth = 19 kbps [19872 bps]
SBC Bandwidth = 27 kbps [27945 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]

==== Pressing Next Track
DEBUG: a2dp_stop: a2dp 0x823ff68
DEBUG: a2dp_stop: Listen thread terminating
Thread in signal handler 14
Error while receiving -1 (errno=4:Interrupted system call)
listen_thread: ending perfeclty
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x823ff68
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_close: a2dp Destroying 0x823ff68
DEBUG: a2dp_close: OK
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_constraint: TEST a2dp 0x823ff68
DEBUG: a2dp_params: a2dp 0x823ff68
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buffer_size 4096
DEBUG: a2dp_prepare: a2dp 0x823ff68
SBC Bandwidth = 23 kbps [24219 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
------ no sound on the headphones ------

==== Terminating xmms
DEBUG: a2dp_stop: a2dp 0x823ff68
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x823ff68
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_close: a2dp Destroying 0x823ff68
DEBUG: a2dp_close: OK

==== Starting xmms
Message: device: pcm.headphone

==== Pressing Play
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_alloc: init
DEBUG: a2dp_connect: a2dp 0x824ffc8 (sk=0, control_sk=0)
DEBUG: connect_stream: Using address: 01:B7:43:44:0D:00
DEBUG: detect_a2dp: Found A2DP Sink
DEBUG: connect_stream: Found A2DP Sink at the destination
DEBUG: do_connect: Connected [imtu 672, omtu 672, flush_to 65535]
DEBUG: connect_stream: Sent the Stream End Point Discovery Command
DEBUG: connect_stream: Got a Stream End Point Discovery Response
DEBUG: connect_stream: received 1 capabilities
DEBUG: process_seid: SEID = 1
DEBUG: process_seid: Requested Capabilities for SEID = 1
DEBUG: process_seid: Got capabilities response
DEBUG: process_seid: Sent set configurations command
DEBUG: process_seid: Set configurations command accepted
DEBUG: process_seid: Sent open stream command
DEBUG: process_seid: Got open stream confirm
DEBUG: do_connect: Connected [imtu 672, omtu 678, flush_to 65535]
DEBUG: connect_stream: Sent stream start
DEBUG: connect_stream: Got start stream confirm
DEBUG: a2dp_constraint: TEST a2dp 0x824ffc8
DEBUG: a2dp_params: a2dp 0x824ffc8
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buffer_size 4096
DEBUG: a2dp_prepare: a2dp 0x824ffc8
Listen thread running
Awaiting command
SBC Bandwidth = 27 kbps [27945 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
Awaiting command
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]

==== Pressing Stop
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating Thread in signal handler 14
Error while receiving -1 (errno=4:Interrupted system call)
listen_thread: ending perfeclty
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK

==== Pressing Play
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_constraint: TEST a2dp 0x824ffc8
DEBUG: a2dp_params: a2dp 0x824ffc8
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buffer_size 4096
DEBUG: a2dp_prepare: a2dp 0x824ffc8
SBC Bandwidth = 20 kbps [21114 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]

==== Pressing Next Track
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_constraint: TEST a2dp 0x824ffc8
DEBUG: a2dp_params: a2dp 0x824ffc8
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buffer_size 4096
DEBUG: a2dp_prepare: a2dp 0x824ffc8
SBC Bandwidth = 24 kbps [25461 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
SBC Bandwidth = 26 kbps [26703 bps]
SBC Bandwidth = 26 kbps [27324 bps]
------ There is sound, since the connection is not closed ------

==== Terminating xmms
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK

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#1 lore raw

Hi,
There exists another alsa driver for a2dp. It's based upon the previous =

but uses a daemon instead of being standalone. It really miss =

documentation, but you can have a look at :
http://sourceforge.net/mailarchive/forum.php?thread_id=3D20199009&forum_id=
=3D1881
You'll need the latest cvs.

If your headset support AVRCP (next/prev buttons) you may also use it, =

see somewhere in this thread :
http://sourceforge.net/mailarchive/forum.php?thread_id=3D29326874&forum_id=
=3D1881

Let us know if it works!
Fr=E9d=E9ric

Rui Pedro Lopes a =E9crit :

Quoted 13 lines

Hi,

I've been experimenting with the user land ALSA plugin for A2DP from bluetooth-alsa project on Sourceforge.

It works fine (tried it with xmms and rhythmbox through gstreamer-alsa) but there is a problem when changing tracks. When a song ends and xmms jumps to the next track on the playlist, the sound no longer arrives the headphones. If I press Stop and the Play, it starts playing again. I send in attach the log of the debug messages for this behavior (current.log).

Quoted 1 line

I then tried commenting the line for registering the close action like th=

is:

Quoted 15 lines

static snd_pcm_ioplug_callback_t a2dp_callback =3D {

        .start                  =3D a2dp_start,
        .stop                   =3D a2dp_stop,
        .pointer                =3D a2dp_pointer,
        .transfer               =3D a2dp_transfer2,

//.close =3D a2dp_close,
.hw_params =3D a2dp_params,
.prepare =3D a2dp_prepare,
.drain =3D a2dp_drain,
.poll_descriptors_count =3D a2dp_descriptors_count,
.poll_descriptors =3D a2dp_descriptors,
.poll_revents =3D a2dp_poll,
};

Quoted 2 lines

It no longer fails when changing tracks. Apparently, it works flawlessly. I also send the log for debug messages in attach (no_close.lo=

g).

Quoted 30 lines

Cheers,

/rp
=

------------------------------------------------------------------------

=3D=3D=3D=3D Starting xmms
Message: device: pcm.headphone

=3D=3D=3D=3D Pressing play
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_alloc: init
DEBUG: a2dp_connect: a2dp 0x825e1c8 (sk=3D0, control_sk=3D0)
DEBUG: connect_stream: Using address: 01:B7:43:44:0D:00
DEBUG: detect_a2dp: Found A2DP Sink
DEBUG: connect_stream: Found A2DP Sink at the destination
DEBUG: do_connect: Connected [imtu 672, omtu 672, flush_to 65535]
DEBUG: connect_stream: Sent the Stream End Point Discovery Command
DEBUG: connect_stream: Got a Stream End Point Discovery Response
DEBUG: connect_stream: received 1 capabilities
DEBUG: process_seid: SEID =3D 1
DEBUG: process_seid: Requested Capabilities for SEID =3D 1
DEBUG: process_seid: Got capabilities response
DEBUG: process_seid: Sent set configurations command
DEBUG: process_seid: Set configurations command accepted
DEBUG: process_seid: Sent open stream command

Quoted 8 lines

DEBUG: process_seid: Got open stream confirm
DEBUG: do_connect: Connected [imtu 672, omtu 678, flush_to 65535]
DEBUG: connect_stream: Sent stream start
DEBUG: connect_stream: Got start stream confirm
DEBUG: a2dp_constraint: TEST a2dp 0x825e1c8
DEBUG: a2dp_params: a2dp 0x825e1c8
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buff=

er_size 4096

Quoted 51 lines

DEBUG: a2dp_prepare: a2dp 0x825e1c8
Listen thread running
Awaiting command
SBC Bandwidth =3D 27 kbps [27945 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
Awaiting command
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
Awaiting command
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]

=3D=3D=3D=3D Pressing Stop
DEBUG: a2dp_stop: a2dp 0x825e1c8
DEBUG: a2dp_stop: Listen thread terminating
Thread in signal handler 14
Error while receiving -1 (errno=3D4:Interrupted system call)
listen_thread: ending perfeclty
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x825e1c8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_close: a2dp Destroying 0x825e1c8
DEBUG: a2dp_close: OK

=3D=3D=3D=3D Pressing Play
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_alloc: init
DEBUG: a2dp_connect: a2dp 0x823ff68 (sk=3D0, control_sk=3D0)
DEBUG: connect_stream: Using address: 01:B7:43:44:0D:00
DEBUG: detect_a2dp: Found A2DP Sink
DEBUG: connect_stream: Found A2DP Sink at the destination
DEBUG: do_connect: Connected [imtu 672, omtu 672, flush_to 65535]
DEBUG: connect_stream: Sent the Stream End Point Discovery Command
DEBUG: connect_stream: Got a Stream End Point Discovery Response
DEBUG: connect_stream: received 1 capabilities
DEBUG: process_seid: SEID =3D 1
DEBUG: process_seid: Requested Capabilities for SEID =3D 1
DEBUG: process_seid: Got capabilities response
DEBUG: process_seid: Sent set configurations command
DEBUG: process_seid: Set configurations command accepted
DEBUG: process_seid: Sent open stream command

Quoted 8 lines

DEBUG: process_seid: Got open stream confirm
DEBUG: do_connect: Connected [imtu 672, omtu 678, flush_to 65535]
DEBUG: connect_stream: Sent stream start
DEBUG: connect_stream: Got start stream confirm
DEBUG: a2dp_constraint: TEST a2dp 0x823ff68
DEBUG: a2dp_params: a2dp 0x823ff68
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buff=

er_size 4096

Quoted 21 lines

DEBUG: a2dp_prepare: a2dp 0x823ff68
Listen thread running
Awaiting command
SBC Bandwidth =3D 19 kbps [19872 bps]
SBC Bandwidth =3D 27 kbps [27945 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]

=3D=3D=3D=3D Pressing Next Track
DEBUG: a2dp_stop: a2dp 0x823ff68
DEBUG: a2dp_stop: Listen thread terminating
Thread in signal handler 14
Error while receiving -1 (errno=3D4:Interrupted system call)
listen_thread: ending perfeclty
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x823ff68
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK

Quoted 8 lines

DEBUG: a2dp_close: a2dp Destroying 0x823ff68
DEBUG: a2dp_close: OK
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_constraint: TEST a2dp 0x823ff68
DEBUG: a2dp_params: a2dp 0x823ff68
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buff=

er_size 4096

Quoted 45 lines

DEBUG: a2dp_prepare: a2dp 0x823ff68
SBC Bandwidth =3D 23 kbps [24219 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
------ no sound on the headphones ------

=3D=3D=3D=3D Terminating xmms
DEBUG: a2dp_stop: a2dp 0x823ff68
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x823ff68
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_close: a2dp Destroying 0x823ff68
DEBUG: a2dp_close: OK
=

------------------------------------------------------------------------

=3D=3D=3D=3D Starting xmms
Message: device: pcm.headphone

=3D=3D=3D=3D Pressing Play
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_alloc: init
DEBUG: a2dp_connect: a2dp 0x824ffc8 (sk=3D0, control_sk=3D0)
DEBUG: connect_stream: Using address: 01:B7:43:44:0D:00
DEBUG: detect_a2dp: Found A2DP Sink
DEBUG: connect_stream: Found A2DP Sink at the destination
DEBUG: do_connect: Connected [imtu 672, omtu 672, flush_to 65535]
DEBUG: connect_stream: Sent the Stream End Point Discovery Command
DEBUG: connect_stream: Got a Stream End Point Discovery Response
DEBUG: connect_stream: received 1 capabilities
DEBUG: process_seid: SEID =3D 1
DEBUG: process_seid: Requested Capabilities for SEID =3D 1
DEBUG: process_seid: Got capabilities response
DEBUG: process_seid: Sent set configurations command
DEBUG: process_seid: Set configurations command accepted
DEBUG: process_seid: Sent open stream command

Quoted 8 lines

DEBUG: process_seid: Got open stream confirm
DEBUG: do_connect: Connected [imtu 672, omtu 678, flush_to 65535]
DEBUG: connect_stream: Sent stream start
DEBUG: connect_stream: Got start stream confirm
DEBUG: a2dp_constraint: TEST a2dp 0x824ffc8
DEBUG: a2dp_params: a2dp 0x824ffc8
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buff=

er_size 4096

Quoted 24 lines

DEBUG: a2dp_prepare: a2dp 0x824ffc8
Listen thread running
Awaiting command
SBC Bandwidth =3D 27 kbps [27945 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
Awaiting command
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]

=3D=3D=3D=3D Pressing Stop
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
Thread in signal handler 14
Error while receiving -1 (errno=3D4:Interrupted system call)
listen_thread: ending perfeclty
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK

Quoted 7 lines

=3D=3D=3D=3D Pressing Play
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_constraint: TEST a2dp 0x824ffc8
DEBUG: a2dp_params: a2dp 0x824ffc8
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buff=

er_size 4096

Quoted 9 lines

DEBUG: a2dp_prepare: a2dp 0x824ffc8
SBC Bandwidth =3D 20 kbps [21114 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]

Quoted 15 lines

=3D=3D=3D=3D Pressing Next Track
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: _snd_pcm_a2dp_open: name pcm.headphone mode 1
DEBUG: _snd_pcm_a2dp_open: bdaddr/dest is 00:0D:44:43:B7:01
DEBUG: a2dp_constraint: TEST a2dp 0x824ffc8
DEBUG: a2dp_params: a2dp 0x824ffc8
DEBUG: a2dp_params: format S16_LE rate 44100 channels 2
DEBUG: a2dp_params: frame_bytes 4 period_bytes 8192 period_size 2048 buff=

er_size 4096

Quoted 21 lines

DEBUG: a2dp_prepare: a2dp 0x824ffc8
SBC Bandwidth =3D 24 kbps [25461 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
SBC Bandwidth =3D 26 kbps [26703 bps]
SBC Bandwidth =3D 26 kbps [27324 bps]
------ There is sound, since the connection is not closed ------

=3D=3D=3D=3D Terminating xmms
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
DEBUG: a2dp_stop: a2dp 0x824ffc8
DEBUG: a2dp_stop: Listen thread terminating
DEBUG: a2dp_stop: Listen thread terminated
DEBUG: a2dp_stop: OK
=

Quoted 5 lines

------------------------------------------------------------------------

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job ea=

sier

Quoted 2 lines

Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat=

=3D121642

Quoted 7 lines

------------------------------------------------------------------------

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author
#2 lore raw

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Quoted 4 lines · Fr=E9d=E9ric DALLEAU wrote:

Hi, There exists another alsa driver for a2dp. It's based upon the previous but uses a daemon instead of being standalone. It really miss documentation, but you can have a look at :
http://sourceforge.net/mailarchive/forum.php?thread_id=3D20199009&forum_i=

d=3D1881

Quoted 5 lines

You'll need the latest cvs.

If your headset support AVRCP (next/prev buttons) you may also use it, see somewhere in this thread :
http://sourceforge.net/mailarchive/forum.php?thread_id=3D29326874&forum_i=

d=3D1881

Quoted 4 lines

Let us know if it works! Fr=E9d=E9ric

It did!
I had to change the Makefile a bit though...
Here goes the diff:
=3D=3D=3D snip =3D=3D=3D
- --- alsa-plugins/Makefile.am 2006-07-26 10:56:20.000000000 +0100
+++ /home/rlopes/tash/btsco/alsa-plugins/Makefile.am 2006-08-30
14:39:00.000000000 +0100
@@ -5,7 +5,7 @@

if ALSAPLUGIN

- -LIBS =3D
+#LIBS =3D

alsadir =3D $(libdir)/alsa-lib

@@ -25,6 +25,7 @@

bin_PROGRAMS =3D a2dpd
a2dpd_SOURCES =3D a2dpd.c a2dplib.c a2dp_timer.c a2dp_ipc.c
+a2dpd_CFLAGS =3D $(AM_CFLAGS)
a2dpd_LDADD =3D @BLUEZ_LIBS@ -lsbc -lpthread -lrt

AM_CFLAGS =3D @ALSA_CFLAGS@ @BLUEZ_CFLAGS@ -pthread
=3D=3D=3D snip =3D=3D=3D

Cheers,

/rp
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=3DSHLH
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Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easi= er
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