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-rw-r--r--src/pulsecore/sink-input.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/src/pulsecore/sink-input.h b/src/pulsecore/sink-input.h
index ea0f8c0e..5285e618 100644
--- a/src/pulsecore/sink-input.h
+++ b/src/pulsecore/sink-input.h
@@ -192,8 +192,16 @@ struct pa_sink_input {
pa_bool_t (*may_move_to) (pa_sink_input *i, pa_sink *s); /* may be NULL */
/* If non-NULL this function is used to dispatch asynchronous
- * control events. */
- void (*send_event)(pa_sink_input *i, const char *event, pa_proplist* data);
+ * control events. Called from main context. */
+ void (*send_event)(pa_sink_input *i, const char *event, pa_proplist* data); /* may be NULL */
+
+ /* If non-NULL this function is called whenever the sink input
+ * volume changes. Called from main context */
+ void (*volume_changed)(pa_sink_input *i); /* may be NULL */
+
+ /* If non-NULL this function is called whenever the sink input
+ * mute status changes. Called from main context */
+ void (*mute_changed)(pa_sink_input *i); /* may be NULL */
struct {
pa_sink_input_state_t state;