sink-input: add callbacks that are called whenever the mute/volume changes

1 files changed, 15 insertions, 1 deletions

diff --git a/src/pulsecore/sink-input.c b/src/pulsecore/sink-input.c
index a29334f9..975fda01 100644
--- a/src/pulsecore/sink-input.c
+++ b/src/pulsecore/sink-input.c
@@ -126,6 +126,8 @@ static void reset_callbacks(pa_sink_input *i) {
     i->state_change = NULL;
     i->may_move_to = NULL;
     i->send_event = NULL;
+    i->volume_changed = NULL;
+    i->mute_changed = NULL;
 }
 
 /* Called from main context */
@@ -968,7 +970,10 @@ void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume, pa_boo
         pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
     }
 
-    /* The virtual volume changed, let's tell people so */
+    /* The volume changed, let's tell people so */
+    if (i->volume_changed)
+        i->volume_changed(i);
+
     pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
 }
 
@@ -999,6 +1004,11 @@ void pa_sink_input_set_mute(pa_sink_input *i, pa_bool_t mute, pa_bool_t save) {
     i->save_muted = save;
 
     pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
+
+    /* The mute status changed, let's tell people so */
+    if (i->mute_changed)
+        i->mute_changed(i);
+
     pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
 }
 
@@ -1263,6 +1273,10 @@ int pa_sink_input_finish_move(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
 
     /* Notify everyone */
     pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], i);
+
+    if (i->volume_changed)
+        i->volume_changed(i);
+
     pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
 
     return 0;