[Bluez-devel] AVDTP in Bluez

[Bluez-devel] AVDTP in Bluez

[Ivy]

Hi,

        I'd like to know that weather AVDTP has implemented and integrated with BLUEZ Stack or not ?.  I have gonethrough Bluez Mailing list. I had seen the discussion between Marcel and Aarthi about AVDTP Design. If it is implemented, where can i see that file ?.. 

        Thanks for your time and Help...

Thanks
-Ivy ..


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Re: [Bluez-devel] AVDTP in Bluez

[Brad Midgley]

Ivy,

There is no AVDTP code implemented in the kernel or bluez libs. The 
closest thing we have is an example of some AVDTP (specifically, just 
A2DP) negotiation in userspace by a2play.c. see bluetooth-alsa.sf.net.

Brad

Brad

Ivy wrote:
> Hi,
> 
>         I'd like to know that weather AVDTP has implemented and integrated with BLUEZ Stack or not ?.  I have gonethrough Bluez Mailing list. I had seen the discussion between Marcel and Aarthi about AVDTP Design. If it is implemented, where can i see that file ?.. 
> 
>         Thanks for your time and Help...
> 
> Thanks
> -Ivy ..
> 
> 
> __________________________
> Free 3000MB email. Stops spam 100%. No banner ads. No popup ads. http://www.cashette.com
> 
> 
> -------------------------------------------------------
> SF.Net email is sponsored by:
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> Download it for free - -and be entered to win a 42" plasma tv or your very
> own Sony(tm)PSP.  Click here to play: http://sourceforge.net/geronimo.php
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> Bluez-devel mailing list
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> https://lists.sourceforge.net/lists/listinfo/bluez-devel


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[Bluez-devel] AVDTP in BlueZ

[Martin Raspaud]

Hi all,


According to the mailing archive (since september 2005) and the Todo
List there is no implementation of avdtp in BlueZ.
Is this right ?
I am planning to implement audio streaming (ogg) over bluetooth. If I
understand correctly (reading the mailing archive) there were attemps
to consider the bluetooth device as a soundcard using alsa. Is this
working ? Would this fit my purpose ? Would it replace avdtp in BlueZ ?

My idea was to implement an icecast plugin/patch to send the data over
bluetooth and then implement a reader on the phone/pda/some device.
Do you think it is doable ? Is someone already working on this ?

Do you any idea about that ?

Best regards

Martin



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Re: [Bluez-devel] AVDTP in BlueZ

[Brad Midgley]

Martin

> According to the mailing archive (since september 2005) and the Todo
> List there is no implementation of avdtp in BlueZ.
> Is this right ?

it is true in that you can't create an avdtp "socket" like you can an
l2cap socket. but we can still build up avdtp signaling in userspace
using l2cap connections.

> I am planning to implement audio streaming (ogg) over bluetooth. If I
> understand correctly (reading the mailing archive) there were attemps
> to consider the bluetooth device as a soundcard using alsa. Is this
> working ? Would this fit my purpose ? Would it replace avdtp in BlueZ ?

we only have a prototype that runs in userspace and accepts audio data
from stdin if you want to stream stuff.

i've been tinkering with an alsa plugin.

> My idea was to implement an icecast plugin/patch to send the data over
> bluetooth and then implement a reader on the phone/pda/some device.
> Do you think it is doable ? Is someone already working on this ?
> 
> Do you any idea about that ?

you are going to implement an a2dp sink in the phone? it is probably
doable and we do have code for it but it will take some adapting to put
it on another platform and it will require a decent-powered arm cpu.
(many phones have a dsp where the encoder could run a lot more
efficiently, but it's a big job to write a dsp task.)

brad


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