[PATCH] bluetooth: Wideband speech implementaion

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On Wednesday 15 August 2018 09:24:04 Sathish Narasimman wrote:
> Hi Pali,
> 
> On Wed, Aug 15, 2018 at 1:31 AM, Pali Rohár <pali.rohar at gmail.com> wrote:
> 
> > On Tuesday 14 August 2018 22:49:27 Luiz Augusto von Dentz wrote:
> > > Hi Pali,
> > >
> > > On Tue, Aug 14, 2018 at 10:28 PM Pali Rohár <pali.rohar at gmail.com>
> > wrote:
> > > >
> > > > On Tuesday 14 August 2018 19:44:49 Sathish Narasimman wrote:
> > > > > mSBC-encoded streams for HFP. The wideband speec encoding and
> > decoding
> > > > > is implemeted with this patch. This patch was refered from original
> > > > > patch of Joao Paula Rechi Vita and was verified with the supported
> > > > > bluetooth controller.
> > > > >
> > > > > Signed-off-by: Sathish Narasimman <sathish.narasimman at intel.com>
> > > > > ---
> > > > >  src/modules/bluetooth/backend-ofono.c        |  20 +-
> > > > >  src/modules/bluetooth/module-bluez5-device.c | 371
> > ++++++++++++++++++++++++++-
> > > > >  2 files changed, 377 insertions(+), 14 deletions(-)
> > > >
> > > > Hi! This looks great. What about support also for other backends, not
> > > > only ofono?
> > >
> > > Afaik only oFono supports WBS negotiation.
> >
> > IIRC codec negotiation is done via AT commands. Therefore native backend
> > and its AT parser could be extended to support it.
> >
> 
> AFAIK i was not able to find Handsfree profile in native backend. I see
> only the headset profile in which codec negotiation is not available.
> please point me the right place where AT commands are implented in PA for
> HFP profile in native backend. i can try the best.

rfcomm_io_callback function in backend-native.c. There is implemented AT
parser. For codec selection is needed to issue some AT command,
therefore that code is needed to extend...

-- 
Pali Rohár
pali.rohar at gmail.com


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