Re: [Bluez-devel] Motorola HT820 audio fidelity

["Mayank Batra" <mayankbatra@gmail.com>]

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Brad,

The simplest approach would be to analyse all SEPs from the sink and if we
find an MP3 SEP, we can very well send the mp3 we receive from mpg123,
otherwise use the SBC codec.

Actually somewhere in the command line arguments we can take an input from
the user which codec does he prefer.

So if he writes something like:
a2play -c mp3
(Where -c is for the codec)
This should first try searching mp3 on the sink.
If not found, it should try SBC (which is of course mandatory and should be
found)

Whereas if he writes something like:
a2play -c sbc

This will straight away connect on SBC SEP.


Mayank


On 5/2/06, Brad Midgley <bmidgley@xmission.com> wrote:
>
> Mayank
>
> >
> http://www.assisttechnology.co.uk/documents/Sonorix_Bluetooth_Headset-Pamphlet.pdf
>
> Nice find.
>
> It brings up an interesting challenge. When using this headset, the
> driver should have access to the encoded audio so it can choose whether
> it's appropriate to decode the stream and then encode it in sbc or if it
> can pass the stream as-is to the set. I'll bet a gst bin could be
> constructed that would configure its elements accordingly for the input
> type and the headset caps.
>
> iirc, a2play assumes the first codec reported from the set is sbc. we
> should test it with the sonorix if somebody here has it to make sure we
> handle multiple codec capabilities properly.
>
> A bit of good news. It takes a couple of tries to get gxine to talk to
> my a2dp headset via the newly working plugin, but once it works the
> audio is very close to being in sync with the video and it is pretty
> solid for the duration of playing some video.
>
> Brad
>
>
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