ubuntu-phone team mailing list archive
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ubuntu-phone team
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Message #09873
Bluez 5, PulseAudio 6, and ALSA 1.0.28
More and more distros are switching to Bluez 5, including Debian
testing. One of the major blockers for us w r t switching to Bluez 5 has
been the lack of HFP/HSP support, i e, no recording from headsets.
However, support for this has recently started showing up on the PA
mailinglist. The support comes in two forms, both with oFono as backend,
and without external dependencies, like in Bluez 4.
The bluez 5 backend for HFP/HSP (ofono or native) will, as it looks now,
be switchable at compile time. I suspect we want the ofono backend on
Ubuntu Touch and native on the desktop (right?). We need to deal with
this somehow.
PulseAudio 6.0 release cycle has not yet started, as we should first try
to get the bluez 5 patches in. But hopefully we should start the release
process within two months and then there is a release 1-2 months from
that. (No guarantees.)
ALSA 1.0.28 contains a few minor fixes and improvements, e g better 2.1
surround support, some support for cards with > 4 HDMI devices. It's
been out there for a few months.
So, what's the plan? I suggest we upload ALSA 1.0.28 in the beginning of
the 15.04 cycle, as early as feasible. There shouldn't be anything
stopping it, and some PA 6.0 stuff makes use of the stuff in alsa-lib
1.0.28.
We could then wait for PulseAudio 6.0 to be relased, and after uploading
that, switch to Bluez 5.
But I just wanted to give you a heads up about what's going on in the
audio stack, and also gather your opinions/concerns in case you want to
do things differently?
--
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic
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