events: Implement the stream-group-done event

A new event which precedes EOS in situations where we
need downstream to unblock any pads waiting on a stream
before we can send EOS. E.g, decodebin draining a chain
so it can switch pads.

https://bugzilla.gnome.org/show_bug.cgi?id=768995

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/check/gst/gstevent.c b/tests/check/gst/gstevent.c
index ebb836ced..5e93b5d72 100644
--- a/tests/check/gst/gstevent.c
+++ b/tests/check/gst/gstevent.c
@@ -52,6 +52,7 @@ GST_START_TEST (create_events)
     fail_unless (reset_time == TRUE);
     gst_event_unref (event);
   }
+
   /* SELECT_STREAMS */
   {
     GList *streams = NULL;
@@ -77,6 +78,22 @@ GST_START_TEST (create_events)
     g_list_free (streams);
     g_list_free_full (res, g_free);
   }
+
+  /* STREAM_GROUP_DONE */
+  {
+    guint group_id = 0;
+
+    event = gst_event_new_stream_group_done (0x42);
+    fail_if (event == NULL);
+    fail_unless (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_GROUP_DONE);
+    fail_if (GST_EVENT_IS_UPSTREAM (event));
+    fail_unless (GST_EVENT_IS_DOWNSTREAM (event));
+    fail_unless (GST_EVENT_IS_SERIALIZED (event));
+    gst_event_parse_stream_group_done (event, &group_id);
+    fail_unless (group_id == 0x42);
+    gst_event_unref (event);
+  }
+
   /* EOS */
   {
     event = gst_event_new_eos ();