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mixer-control: Support adding and removing card-ports after card was added

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With pipewire, card ports are added or removed after the card is visible to us.
This is intended from the pipewire side, as audio routing is dynamic and can
change at any time.

This is the case for Bluetooth devices, where there are multiple ports for
the different profiles available. In case a profile becomes available or
goes unavailable (likely this can happen on connection issues on the Bluetooth
link), the ports will change.

Support this scenario by updating the ports list on card changes, adding new
ports (and creating new respective ui-devices) and removing ports (and removing
the respective ui-devices).

Now that we can add ports after creating the card, this likely means we can
remove handling for portless cards. At least Bluetooth devices nowadays have
ports, but they get them later.
This commit is contained in:
Jonas Dreßler 2024-02-29 22:10:52 +01:00
parent 82fed08587
commit 10a3c0a766
3 changed files with 135 additions and 148 deletions
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6
gvc-mixer-card-private.h
View File

@ -30,6 +30,12 @@ GvcMixerCard * gvc_mixer_card_new (pa_context *context,
guint index);
pa_context * gvc_mixer_card_get_pa_context (GvcMixerCard *card);
void gvc_mixer_card_add_port (GvcMixerCard *card,
GvcMixerCardPort *port);
void gvc_mixer_card_remove_port (GvcMixerCard *card,
GvcMixerCardPort *port);
G_END_DECLS
#endif /* __GVC_MIXER_CARD_PRIVATE_H */

15
gvc-mixer-card.c
View File

@ -385,6 +385,21 @@ gvc_mixer_card_set_ports (GvcMixerCard *card,
return TRUE;
}
void
gvc_mixer_card_add_port (GvcMixerCard *card,
GvcMixerCardPort *port)
{
card->priv->ports = g_list_prepend (card->priv->ports, port);
}
void
gvc_mixer_card_remove_port (GvcMixerCard *card,
GvcMixerCardPort *port)
{
card->priv->ports = g_list_remove (card->priv->ports, port);
free_port (port);
}
static void
gvc_mixer_card_set_property (GObject *object,
guint prop_id,

222
gvc-mixer-control.c
View File

@ -614,7 +614,6 @@ gvc_mixer_control_change_output (GvcMixerControl *control,
return;
}
/* Handle a network sink as a portless or cardless device */
if (!gvc_mixer_ui_device_has_ports (output)) {
g_debug ("Did we try to move to a software/bluetooth sink ?");
if (gvc_mixer_control_set_default_sink (control, stream)) {
@ -704,7 +703,6 @@ gvc_mixer_control_change_input (GvcMixerControl *control,
return;
}
/* Handle a network sink as a portless/cardless device */
if (!gvc_mixer_ui_device_has_ports (input)) {
g_debug ("Did we try to move to a software/bluetooth source ?");
if (! gvc_mixer_control_set_default_source (control, stream)) {
@ -1308,8 +1306,6 @@ match_stream_with_devices (GvcMixerControl *control,
* only then can we match the new hdmi sink with its corresponding device.
*
* Firstly it checks to see if the incoming stream has no ports.
* - If a stream has no ports but has a valid card ID (bluetooth), it will attempt
* to match the device with the stream using the card id.
* - If a stream has no ports and no valid card id, it goes ahead and makes a new
* device (software/network devices are only detectable at the sink/source level)
* If the stream has ports it will match each port against the stream using match_stream_with_devices().
@ -1329,51 +1325,6 @@ sync_devices (GvcMixerControl *control,
if (stream_ports == NULL) {
GvcMixerUIDevice *device;
/* Bluetooth, no ports but a valid card */
if (gvc_mixer_stream_get_card_index (stream) != PA_INVALID_INDEX) {
GList *devices, *d;
gboolean in_possession = FALSE;
devices = g_hash_table_get_values (is_output ? control->priv->ui_outputs : control->priv->ui_inputs);
for (d = devices; d != NULL; d = d->next) {
GvcMixerCard *card;
guint card_id;
device = d->data;
g_object_get (G_OBJECT (device),
"card", &card,
NULL);
card_id = gvc_mixer_card_get_index (card);
g_debug ("sync devices, device description - '%s', device card id - %i, stream description - %s, stream card id - %i",
gvc_mixer_ui_device_get_description (device),
card_id,
gvc_mixer_stream_get_description (stream),
gvc_mixer_stream_get_card_index (stream));
if (card_id == gvc_mixer_stream_get_card_index (stream)) {
in_possession = TRUE;
break;
}
}
g_list_free (devices);
if (!in_possession) {
g_warning ("Couldn't match the portless stream (with card) - '%s' is it an input ? -> %i, streams card id -> %i",
gvc_mixer_stream_get_description (stream),
GVC_IS_MIXER_SOURCE (stream),
gvc_mixer_stream_get_card_index (stream));
return;
}
g_object_set (G_OBJECT (device),
"stream-id", gvc_mixer_stream_get_id (stream),
"description", gvc_mixer_stream_get_description (stream),
"origin", "", /*Leave it empty for these special cases*/
"port-name", NULL,
"port-available", TRUE,
NULL);
} else { /* Network sink/source has no ports and no card. */
GObject *object;
object = g_object_new (GVC_TYPE_MIXER_UI_DEVICE,
@ -1390,7 +1341,6 @@ sync_devices (GvcMixerControl *control,
GUINT_TO_POINTER (gvc_mixer_ui_device_get_id (device)),
g_object_ref (device));
}
g_signal_emit (G_OBJECT (control),
signals[is_output ? OUTPUT_ADDED : INPUT_ADDED],
0,
@ -1972,7 +1922,7 @@ is_card_port_an_output (GvcMixerCardPort* port)
* This method will create a ui device for the given port.
*/
static void
create_ui_device_from_port (GvcMixerControl* control,
update_ui_device_on_port_added (GvcMixerControl *control,
GvcMixerCardPort *port,
GvcMixerCard *card)
{
@ -2008,20 +1958,15 @@ create_ui_device_from_port (GvcMixerControl* control,
gvc_mixer_ui_device_get_id (uidevice));
}
g_debug ("create_ui_device_from_port, direction %u, description '%s', origin '%s', port available %i",
g_debug ("update_ui_device_on_port_added, direction %u, description '%s', origin '%s', port available %i",
direction,
port->human_port,
gvc_mixer_card_get_name (card),
available);
}
/*
* This method will match up GvcMixerCardPorts with existing devices.
* A match is achieved if the device's card-id and the port's card-id are the same
* && the device's port-name and the card-port's port member are the same.
*/
static void
update_ui_device_from_port (GvcMixerControl *control,
update_ui_device_on_port_changed (GvcMixerControl *control,
GvcMixerCardPort *card_port,
pa_card_port_info *new_port_info,
GvcMixerCard *card)
@ -2081,48 +2026,62 @@ update_ui_device_from_port (GvcMixerControl *control,
}
static void
create_ui_device_from_card (GvcMixerControl *control,
maybe_remove_ui_device (GvcMixerControl *control,
GvcMixerUIDevice *device)
{
/* We add UIDevices for ports or for streams, so remove them if the device now
* has neither.
*/
if (gvc_mixer_ui_device_get_stream_id (device) == GVC_MIXER_UI_DEVICE_INVALID &&
!gvc_mixer_ui_device_has_ports (device)) {
gboolean is_output = gvc_mixer_ui_device_is_output (device);
g_debug ("Removing UIDevice %s",
gvc_mixer_ui_device_get_description (device));
g_hash_table_remove (is_output ? control->priv->ui_outputs : control->priv->ui_inputs,
GUINT_TO_POINTER (gvc_mixer_ui_device_get_id (device)));
}
}
static void
update_ui_device_on_port_removed (GvcMixerControl *control,
GvcMixerCardPort *card_port,
GvcMixerCard *card)
{
GObject *object;
GvcMixerUIDevice *in;
GvcMixerUIDevice *out;
const GList *profiles;
GList *d;
GList *devices;
gboolean is_output = is_card_port_an_output (card_port);
/* For now just create two devices and presume this device is multi directional
* Ensure to remove both on card removal (available to false by default) */
profiles = gvc_mixer_card_get_profiles (card);
devices = g_hash_table_get_values (is_output ? control->priv->ui_outputs : control->priv->ui_inputs);
for (d = devices; d != NULL; d = d->next) {
GvcMixerUIDevice *device = d->data;
GvcMixerCard *device_card;
gchar *device_port_name;
g_debug ("Portless card just registered - %i", gvc_mixer_card_get_index (card));
object = g_object_new (GVC_TYPE_MIXER_UI_DEVICE,
"type", UIDeviceInput,
"description", gvc_mixer_card_get_name (card),
"origin", "", /* Leave it empty for these special cases */
"port-name", NULL,
"port-available", FALSE,
"card", card,
g_object_get (G_OBJECT (device),
"card", &device_card,
"port-name", &device_port_name,
NULL);
in = GVC_MIXER_UI_DEVICE (object);
gvc_mixer_ui_device_set_profiles (in, profiles);
g_hash_table_insert (control->priv->ui_inputs,
GUINT_TO_POINTER (gvc_mixer_ui_device_get_id (in)),
g_object_ref (in));
object = g_object_new (GVC_TYPE_MIXER_UI_DEVICE,
"type", UIDeviceOutput,
"description", gvc_mixer_card_get_name (card),
"origin", "", /* Leave it empty for these special cases */
if (g_strcmp0 (card_port->port, device_port_name) == 0 && device_card == card) {
g_object_set (G_OBJECT (device),
"card", NULL,
"port-name", NULL,
"port-available", FALSE,
"card", card,
NULL);
out = GVC_MIXER_UI_DEVICE (object);
gvc_mixer_ui_device_set_profiles (out, profiles);
g_hash_table_insert (control->priv->ui_outputs,
GUINT_TO_POINTER (gvc_mixer_ui_device_get_id (out)),
g_object_ref (out));
g_signal_emit (G_OBJECT (control),
signals[is_output ? OUTPUT_REMOVED : INPUT_REMOVED],
0,
gvc_mixer_ui_device_get_id (device));
maybe_remove_ui_device (control, device);
}
g_free (device_port_name);
}
g_list_free (devices);
}
#ifdef HAVE_ALSA
@ -2549,8 +2508,6 @@ out:
* This is done by the following:
*
* - gvc_mixer_card and gvc_mixer_card_ports are created and relevant setters are called.
* - First it checks to see if it's a portless card. Bluetooth devices are portless AFAIHS.
* If so it creates two devices, an input and an output.
* - If it's a 'normal' card with ports it will create a new ui-device or
* synchronise port availability with the existing device cached for that port on this card. */
@ -2558,11 +2515,11 @@ static void
update_card (GvcMixerControl *control,
const pa_card_info *info)
{
const GList *card_ports = NULL;
const GList *m = NULL;
GvcMixerCard *card;
gboolean is_new = FALSE;
GList *profile_list = NULL;
GList *old_ports;
#if 1
guint i;
const char *key;
@ -2611,26 +2568,6 @@ update_card (GvcMixerControl *control,
}
gvc_mixer_card_set_profiles (card, profile_list);
if (is_new) {
GList *port_list = NULL;
for (i = 0; i < info->n_ports; i++) {
GvcMixerCardPort *port;
port = g_new0 (GvcMixerCardPort, 1);
port->port = g_strdup (info->ports[i]->name);
port->human_port = g_strdup (info->ports[i]->description);
port->priority = info->ports[i]->priority;
port->available = info->ports[i]->available;
port->direction = info->ports[i]->direction;
port->icon_name = g_strdup (pa_proplist_gets (info->ports[i]->proplist, "device.icon_name"));
port->profiles = determine_profiles_for_port (info->ports[i], profile_list);
port_list = g_list_prepend (port_list, port);
}
gvc_mixer_card_set_ports (card, port_list);
}
gvc_mixer_card_set_name (card, pa_proplist_gets (info->proplist, "device.description"));
gvc_mixer_card_set_icon_name (card, pa_proplist_gets (info->proplist, "device.icon_name"));
gvc_mixer_card_set_profile (card, info->active_profile->name);
@ -2641,23 +2578,52 @@ update_card (GvcMixerControl *control,
card);
}
card_ports = gvc_mixer_card_get_ports (card);
old_ports = g_list_copy ((GList *)gvc_mixer_card_get_ports (card));
for (m = old_ports; m; m = m->next) {
GvcMixerCardPort *card_port = m->data;
gboolean found = FALSE;
if (card_ports == NULL && is_new) {
g_debug ("Portless card just registered - %s", gvc_mixer_card_get_name (card));
create_ui_device_from_card (control, card);
}
for (m = card_ports; m != NULL; m = m->next) {
GvcMixerCardPort *card_port;
card_port = m->data;
if (is_new)
create_ui_device_from_port (control, card_port, card);
else {
for (i = 0; i < info->n_ports; i++) {
if (g_strcmp0 (card_port->port, info->ports[i]->name) == 0)
update_ui_device_from_port (control, card_port, info->ports[i], card);
pa_card_port_info *port = info->ports[i];
if (g_strcmp0 (card_port->port, port->name) == 0)
found = TRUE;
}
if (!found) {
update_ui_device_on_port_removed (control, card_port, card);
gvc_mixer_card_remove_port (card, card_port);
}
}
g_clear_pointer (&old_ports, g_list_free);
for (i = 0; i < info->n_ports; i++) {
pa_card_port_info *port = info->ports[i];
gboolean found = FALSE;
for (m = gvc_mixer_card_get_ports (card); m; m = m->next) {
GvcMixerCardPort *card_port = m->data;
if (g_strcmp0 (card_port->port, port->name) == 0) {
found = TRUE;
update_ui_device_on_port_changed (control, card_port, port, card);
}
}
if (!found) {
GvcMixerCardPort *card_port;
card_port = g_new0 (GvcMixerCardPort, 1);
card_port->port = g_strdup (port->name);
card_port->human_port = g_strdup (port->description);
card_port->priority = port->priority;
card_port->available = port->available;
card_port->direction = port->direction;
card_port->icon_name = g_strdup (pa_proplist_gets (port->proplist, "device.icon_name"));
card_port->profiles = determine_profiles_for_port (port, profile_list);
gvc_mixer_card_add_port (card, card_port);
update_ui_device_on_port_added (control, card_port, card);
}
}