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audio: do not use first -audiodev as default audio device

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It is now possible to specify the options for the default audio device
using -audio, so there is no need anymore to use a fake -audiodev option.

Remove the fall back to QTAILQ_FIRST(&audio_states), instead remember the
AudioState that was created from default_audiodevs and use that one.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2023-10-05 17:09:36 +02:00
parent 1ebdbff4c3
commit 22f84d4f78
3 changed files with 22 additions and 24 deletions
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25
audio/audio.c
View file

@ -104,6 +104,7 @@ static audio_driver *audio_driver_lookup(const char *name)
static QTAILQ_HEAD(AudioStateHead, AudioState) audio_states =
QTAILQ_HEAD_INITIALIZER(audio_states);
static AudioState *default_audio_state;
const struct mixeng_volume nominal_volume = {
.mute = 0,
@ -1660,6 +1661,7 @@ static void free_audio_state(AudioState *s)
void audio_cleanup(void)
{
default_audio_state = NULL;
while (!QTAILQ_EMPTY(&audio_states)) {
AudioState *s = QTAILQ_FIRST(&audio_states);
QTAILQ_REMOVE(&audio_states, s, list);
@ -1760,6 +1762,7 @@ static AudioState *audio_init(Audiodev *dev, Error **errp)
goto out;
}
} else {
assert(!default_audio_state);
for (;;) {
AudiodevListEntry *e = QSIMPLEQ_FIRST(&default_audiodevs);
if (!e) {
@ -1801,24 +1804,9 @@ out:
bool AUD_register_card (const char *name, QEMUSoundCard *card, Error **errp)
{
if (!card->state) {
if (!QTAILQ_EMPTY(&audio_states)) {
/*
* FIXME: once it is possible to create an arbitrary
* default device via -audio DRIVER,OPT=VALUE (no "model"),
* replace this special case with the default AudioState*,
* storing it in a separate global. For now, keep the
* warning to encourage moving off magic use of the first
* -audiodev.
*/
if (QSIMPLEQ_EMPTY(&default_audiodevs)) {
dolog("Device %s: audiodev default parameter is deprecated, please "
"specify audiodev=%s\n", name,
QTAILQ_FIRST(&audio_states)->dev->id);
}
card->state = QTAILQ_FIRST(&audio_states);
} else {
card->state = audio_init(NULL, errp);
if (!card->state) {
if (!default_audio_state) {
default_audio_state = audio_init(NULL, errp);
if (!default_audio_state) {
if (!QSIMPLEQ_EMPTY(&audiodevs)) {
error_append_hint(errp, "Perhaps you wanted to use -audio or set audiodev=%s?\n",
QSIMPLEQ_FIRST(&audiodevs)->dev->id);
@ -1826,6 +1814,7 @@ bool AUD_register_card (const char *name, QEMUSoundCard *card, Error **errp)
return false;
}
}
card->state = default_audio_state;
}
card->name = g_strdup (name);

6
docs/about/deprecated.rst
View file

@ -23,12 +23,6 @@ deprecated.
System emulator command line arguments
--------------------------------------
Creating sound card devices without ``audiodev=`` property (since 4.2)
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
When not using the deprecated legacy audio config, each sound card
should specify an ``audiodev=`` property.
Short-form boolean options (since 6.0)
''''''''''''''''''''''''''''''''''''''

15
docs/about/removed-features.rst
View file

@ -442,6 +442,21 @@ line using a ``secret`` object instance.
The ``-audiodev`` and ``-audio`` command line options are now the only
way to specify audio backend settings.
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.