AVDTP in BlueZ
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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Martin
Quoted 3 lines
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.
Quoted 4 lines
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.
Quoted 5 lines
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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Re: [Bluez-devel] Multiple headsets with one dongle
Hi Brad,
Thanks for your reply!
Quoted 3 lines
Quoted 3 lines
The rfcomm channel communication is not where interference happens. It's when both headsets try to build the sco connection at the same time.
OK, that gives me some point where to start looking.
Quoted 5 lines
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I'm not totally sure how to do this anyway. Marcel has hinted at it and apparently there's a boot-time parameter to set something to allow two sco connections. I tried to capture everything in the btsco bug for multiple headsets, but this is all I come up with there:
This would be boot-time for the dongle's boot, or the actual machine's boot?
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Marcel adds: "To get more than one SCO channel working the
hci_usbdriver must be fixed to dynamicaly change the alternate settting."
Also, fixed as in repaired, or as in set to something permanent? I'll take a look at the archives and bug log.
Best regards,
Mike
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