Re: [PATCH 5/7] audio: do not use first -audiodev as default audio device

[Paolo Bonzini]

On Thu, Oct 5, 2023 at 3:39 PM BALATON Zoltan <balaton@eik.bme.hu> wrote:
> >> QEMU does not create default audio backends anymore if any of the
> >> ``-audiodev``, ``-audio`` or ``-nodefaults`` options are used on the
> >> command line.
> >
> > Maybe this needs further updating because -audio can now define the default
> > and is what should be used instead of -audiodev but this is not clear from
> > this documentation.
>
> And while at it, maybe also mention machine audiodev property here as a
> way to set audiodev of embedded devices.

Sure, here is my next attempt:

===================
Using ``-audiodev`` to define the default audio backend (removed in 8.2)
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
If no audiodev property is specified, previous versions would use the
first ``-audiodev`` command line option as a fallback.  Starting with
version 8.2, audio backends created with ``-audiodev`` will only be
used by clients (sound cards, machines with embedded sound hardware, VNC)
that refer to it in an ``audiodev=`` property.

In order to configure a default audio backend, use the ``-audio``
command line option without specifying a ``model``; while previous
versions of QEMU required a model, starting with version 8.2
QEMU does not require a model and will not create any sound card
in this case.

Note that the default audio backend must be configured on the command
line if the ``-nodefaults`` options is used.
===================