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dbus: add -audio dbus nsamples option

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Allow to set the number of audio samples per read/write to dbus.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This commit is contained in:
Marc-André Lureau 2025-01-24 17:29:24 +04:00
parent c0fb8e88cb
commit 19c628f2f5
3 changed files with 51 additions and 4 deletions
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21
audio/dbusaudio.c
View file

@ -43,9 +43,10 @@
#define DBUS_DISPLAY1_AUDIO_PATH DBUS_DISPLAY1_ROOT "/Audio"
#define DBUS_AUDIO_NSAMPLES 1024 /* could be configured? */
#define DBUS_DEFAULT_AUDIO_NSAMPLES 480
typedef struct DBusAudio {
Audiodev *dev;
GDBusObjectManagerServer *server;
bool p2p;
GDBusObjectSkeleton *audio;
@ -151,6 +152,18 @@ dbus_init_out_listener(QemuDBusDisplay1AudioOutListener *listener,
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
}
static guint
dbus_audio_get_nsamples(DBusAudio *da)
{
AudiodevDBusOptions *opts = &da->dev->u.dbus;
if (opts->has_nsamples && opts->nsamples) {
return opts->nsamples;
} else {
return DBUS_DEFAULT_AUDIO_NSAMPLES;
}
}
static int
dbus_init_out(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque)
{
@ -160,7 +173,7 @@ dbus_init_out(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque)
QemuDBusDisplay1AudioOutListener *listener = NULL;
audio_pcm_init_info(&hw->info, as);
hw->samples = DBUS_AUDIO_NSAMPLES;
hw->samples = dbus_audio_get_nsamples(da);
audio_rate_start(&vo->rate);
g_hash_table_iter_init(&iter, da->out_listeners);
@ -274,7 +287,7 @@ dbus_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
QemuDBusDisplay1AudioInListener *listener = NULL;
audio_pcm_init_info(&hw->info, as);
hw->samples = DBUS_AUDIO_NSAMPLES;
hw->samples = dbus_audio_get_nsamples(da);
audio_rate_start(&vo->rate);
g_hash_table_iter_init(&iter, da->in_listeners);
@ -399,6 +412,7 @@ dbus_audio_init(Audiodev *dev, Error **errp)
{
DBusAudio *da = g_new0(DBusAudio, 1);
da->dev = dev;
da->out_listeners = g_hash_table_new_full(g_str_hash, g_str_equal,
g_free, g_object_unref);
da->in_listeners = g_hash_table_new_full(g_str_hash, g_str_equal,
@ -652,6 +666,7 @@ dbus_audio_set_server(AudioState *s, GDBusObjectManagerServer *server, bool p2p)
"swapped-signal::handle-register-out-listener",
dbus_audio_register_out_listener, s,
NULL);
qemu_dbus_display1_audio_set_nsamples(da->iface, dbus_audio_get_nsamples(da));
g_dbus_object_skeleton_add_interface(G_DBUS_OBJECT_SKELETON(da->audio),
G_DBUS_INTERFACE_SKELETON(da->iface));