Openmoko media player and direct mp3 to bluetooth headphones

Yorick Moko yorickmoko at
Thu Feb 26 21:11:57 CET 2009

/me finds it very interesting
looking forward to a good implementation of it
(also have you any idea how much it will impact the battery lifetime
of the bluetooth unit?)

On Thu, Feb 26, 2009 at 8:02 PM, Daniel Benoy <daniel at> wrote:
> On Thursday 26 February 2009 09:07:12 you wrote:
>> On Wednesday 25 February 2009 22:06:49 you wrote:
>> > So is this to say that the bluetooth earpiece itself has MP3-decoding
>> > capability? I find that hard to imagine. So where is the decoding actually
>> > taking place? And can it be done with OGG too, since it's the obviously
>> > superior codec. :P
>> >
>> Yes it does decode the MP3 data itself, and despite the fact that only SBC is required by the spec, it's actually very common for MP3 to be supported.
>> To check if mp3 is supported, use the 'avinfo' command included with bluez on the bluetooth address of the headphones, and it'll ask it for all supported codecs.  It will say 'MPEG12' as one of the codecs if it supports it.
>> I don't think there are any that support ogg.  I suppose it's something that's possible, however I've been through the code of the gstreamer a2dpsink and I can tell you that it will have to be modified to support ogg, in addition to the headphones.
> I should clarify.  This is something that's common among *stereo* bluetooth headsets (A2DP headphones).  A one-ear headset probably does nothing of the sort.
> --
> Daniel Benoy
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