[pulseaudio-discuss] [PATCH] bluetooth: Add support for automatic switch between hsp and a2dp profiles

[Arun Raghavan]

On 30 September 2014 17:41, Pali Rohár <pali.rohar at gmail.com> wrote:
> On Tuesday 30 September 2014 13:46:48 Arun Raghavan wrote:
>> On 30 September 2014 16:54, Pali Rohár <pali.rohar at gmail.com>
>> wrote: [snip]
>>
>> >> Get them to make a release with media.role set.
>> >>
>> >> This is a small set of applications, a lot of which already
>> >> set this.
>> >
>> > Yes, new versions of applications could be released with
>> > media.role set so everything will work.
>> >
>> > But this means that *very* pulseaudio application should set
>> > media.role so we will know that application do *not* want to
>> > use microphone.
>> >
>> > For applications which do not set media.role we know
>> > nothing.
>>
>> I've replied to all these in previous mails.
>>
>> >> > What is bad in my solution?
>> >>
>> >> That only VoIP applications should really be using it, and
>> >> the only good way to know an application's voip streams is
>> >> for them to be tagged by the application.
>> >>
>> >> -- Arun
>> >
>> > I disagree. Once I connected my bluetooth headset (which has
>> > also microphone) I want to use only sink/source with my
>> > headset. And not combination of output to bluetooth, input
>> > from internal mic and so... This will only confuse other
>> > users who wants to use bluetooth headset, but PA decide
>> > that you do not want to that...
>>
>> We do disagree on this. I don't think Bluetooth headsets
>> should be used as general-purpose capture devices. If a user
>> really wants to do so, there is a mechanism to allow a manual
>> switch. Most users will not be using this and do not need
>> this.
>>
>> I think we've gone through the previous arguments multiple
>> times, and disagree on the last point.
>>
>> Unless someone else wants to chime in with a good reason to
>> support this mechanism, this is a NAK from me.
>>
>> I'll probably write another patch to have the media-role work
>> merged into module-bluetooth-policy at some point, unless
>> someone else wants to take it up sooner.
>>
>> -- Arun
>
> Ok and what to do in case that there is no other PA card with
> recording capability? Also I would like to hear opinion of other
> developers.

Then you have no capture devices capable of general purpose (i.e. not
limited to low quality voice) capture, and you have to manually elect
to make this device available if you're okay with that.

-- Arun