[PATCH 1/2] PulseAudio: add stream event callback and handle "format-lost"

[remi@xxxxxxxxxx (Rémi Denis-Courmont)]

---
 modules/audio_output/pulse.c |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/modules/audio_output/pulse.c b/modules/audio_output/pulse.c
index c3c0aa0..fc7cdb8 100644
--- a/modules/audio_output/pulse.c
+++ b/modules/audio_output/pulse.c
@@ -355,6 +355,24 @@ static void stream_state_cb(pa_stream *s, void *userdata)
     (void) userdata;
 }
 
+static void stream_event_cb(pa_stream *s, const char *name, pa_proplist *pl,
+                            void *userdata)
+{
+    audio_output_t *aout = userdata;
+
+    /* FIXME: expose aout_Restart() directly */
+    if (!strcmp(name, "format-lost")) {
+        vlc_value_t dummy = { .i_int = 0 };
+
+        msg_Dbg (aout, "format lost");
+        aout_ChannelsRestart (VLC_OBJECT(aout), "audio-device",
+                              dummy, dummy, NULL);
+    } else
+        msg_Warn (aout, "unhandled event %s", name);
+    (void) s;
+    (void) pl;
+}
+
 static void stream_moved_cb(pa_stream *s, void *userdata)
 {
     audio_output_t *aout = userdata;
@@ -791,6 +809,7 @@ static int Open(vlc_object_t *obj)
     }
     sys->stream = s;
     pa_stream_set_state_callback(s, stream_state_cb, NULL);
+    pa_stream_set_event_callback(s, stream_event_cb, aout);
     pa_stream_set_latency_update_callback(s, stream_latency_cb, aout);
     pa_stream_set_moved_callback(s, stream_moved_cb, aout);
     pa_stream_set_overflow_callback(s, stream_overflow_cb, aout);
@@ -856,6 +875,7 @@ static void Close (vlc_object_t *obj)
 
         /* Clear all callbacks */
         pa_stream_set_state_callback(s, NULL, NULL);
+        pa_stream_set_event_callback(s, NULL, NULL);
         pa_stream_set_latency_update_callback(s, NULL, NULL);
         pa_stream_set_moved_callback(s, NULL, NULL);
         pa_stream_set_overflow_callback(s, NULL, NULL);
-- 
1.7.6.3