Re: [Bluez-devel] AVDTP in BlueZ

[Brad Midgley <bmidgley@xmission.com>]

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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