event: add name to sticky_multi events

The name of the event is used to store multiple sticky events of a certain type
on a pad.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=676859

gst/gstevent.c

@@ -992,22 +992,26 @@ gst_event_copy_segment (GstEvent * event, GstSegment * segment)
 
 /**
  * gst_event_new_tag:
+ * @name: (transfer none): the name of the event
  * @taglist: (transfer full): metadata list. The event will take ownership
  *     of the taglist.
  *
  * Generates a metadata tag event from the given @taglist.
  *
+ * Since the TAG event has the %GST_EVENT_TYPE_STICKY_MULTI flag set, the
+ * @name will be used to keep track of multiple tag events.
+ *
  * Returns: (transfer full): a new #GstEvent
  */
 GstEvent *
-gst_event_new_tag (GstTagList * taglist)
+gst_event_new_tag (const gchar * name, GstTagList * taglist)
 {
   GstStructure *s;
   GValue val = G_VALUE_INIT;
 
   g_return_val_if_fail (taglist != NULL, NULL);
 
-  s = gst_structure_new_id_empty (GST_QUARK (EVENT_TAG));
+  s = gst_structure_new_empty (name);
   g_value_init (&val, GST_TYPE_TAG_LIST);
   g_value_take_boxed (&val, taglist);
   gst_structure_id_take_value (s, GST_QUARK (TAGLIST), &val);
@@ -1551,19 +1555,22 @@ gst_event_new_reconfigure (void)
 
 /**
  * gst_event_new_sink_message:
+ * @name: a name for the event
  * @msg: (transfer none): the #GstMessage to be posted
  *
  * Create a new sink-message event. The purpose of the sink-message event is
  * to instruct a sink to post the message contained in the event synchronized
  * with the stream.
  *
+ * @name is used to store multiple sticky events on one pad.
+ *
  * Returns: (transfer full): a new #GstEvent
  *
  * Since: 0.10.26
  */
 /* FIXME 0.11: take ownership of msg for consistency? */
 GstEvent *
-gst_event_new_sink_message (GstMessage * msg)
+gst_event_new_sink_message (const gchar * name, GstMessage * msg)
 {
   GstEvent *event;
   GstStructure *structure;
@@ -1572,7 +1579,7 @@ gst_event_new_sink_message (GstMessage * msg)
 
   GST_CAT_INFO (GST_CAT_EVENT, "creating sink-message event");
 
-  structure = gst_structure_new_id (GST_QUARK (EVENT_SINK_MESSAGE),
+  structure = gst_structure_new_id (g_quark_from_string (name),
       GST_QUARK (MESSAGE), GST_TYPE_MESSAGE, msg, NULL);
   event = gst_event_new_custom (GST_EVENT_SINK_MESSAGE, structure);
 
@@ -1627,6 +1634,7 @@ gst_event_new_stream_start (void)
 
 /**
  * gst_event_new_toc:
+ * @name: a name for the event
  * @toc: #GstToc structure.
  * @updated: whether @toc was updated or not.
  *
@@ -1638,7 +1646,7 @@ gst_event_new_stream_start (void)
  * Since: 0.10.37
  */
 GstEvent *
-gst_event_new_toc (GstToc * toc, gboolean updated)
+gst_event_new_toc (const gchar * name, GstToc * toc, gboolean updated)
 {
   GstStructure *toc_struct;
 

gst/gstevent.h

@@ -523,11 +523,11 @@ void            gst_event_parse_segment         (GstEvent *event, const GstSegme
 void            gst_event_copy_segment          (GstEvent *event, GstSegment *segment);
 
 /* tag event */
-GstEvent*       gst_event_new_tag               (GstTagList *taglist) G_GNUC_MALLOC;
+GstEvent*       gst_event_new_tag               (const gchar *name, GstTagList *taglist) G_GNUC_MALLOC;
 void            gst_event_parse_tag             (GstEvent *event, GstTagList **taglist);
 
 /* TOC event */
-GstEvent*      gst_event_new_toc                (GstToc *toc, gboolean updated);
+GstEvent*      gst_event_new_toc                (const gchar *name, GstToc *toc, gboolean updated);
 void           gst_event_parse_toc              (GstEvent *event, GstToc **toc, gboolean *updated);
 
 
@@ -538,7 +538,7 @@ void            gst_event_parse_buffer_size     (GstEvent *event, GstFormat *for
                                                  gint64 *maxsize, gboolean *async);
 
 /* sink message */
-GstEvent*       gst_event_new_sink_message      (GstMessage *msg) G_GNUC_MALLOC;
+GstEvent*       gst_event_new_sink_message      (const gchar *name, GstMessage *msg) G_GNUC_MALLOC;
 void            gst_event_parse_sink_message    (GstEvent *event, GstMessage **msg);
 
 /* QOS events */

libs/gst/base/gstbaseparse.c

@@ -1407,7 +1407,8 @@ gst_base_parse_post_bitrates (GstBaseParse * parse, gboolean post_min,
       parse->priv->max_bitrate);
 
   if (taglist != NULL) {
-    gst_pad_push_event (parse->srcpad, gst_event_new_tag (taglist));
+    gst_pad_push_event (parse->srcpad, gst_event_new_tag ("GstParser",
+            taglist));
   }
 }
 

tests/check/gst/gstevent.c

@@ -185,7 +185,7 @@ GST_START_TEST (create_events)
     GstTagList *taglist = gst_tag_list_new_empty ();
     GstTagList *tl2 = NULL;
 
-    event = gst_event_new_tag (taglist);
+    event = gst_event_new_tag ("test", taglist);
     fail_if (taglist == NULL);
     fail_if (event == NULL);
     fail_unless (GST_EVENT_TYPE (event) == GST_EVENT_TAG);

tests/check/gst/gsttoc.c

@@ -278,7 +278,7 @@ GST_START_TEST (test_serializing)
   test_toc = NULL;
 
   /* check TOC event handling */
-  event = gst_event_new_toc (toc, TRUE);
+  event = gst_event_new_toc ("test", toc, TRUE);
   fail_if (event == NULL);
   fail_unless (event->type == GST_EVENT_TOC);
   ASSERT_MINI_OBJECT_REFCOUNT (GST_MINI_OBJECT (event), "GstEvent", 1);

tests/check/gst/gstutils.c

@@ -504,7 +504,7 @@ GST_START_TEST (test_element_found_tags)
   gst_element_set_state (pipeline, GST_STATE_PLAYING);
 
   srcpad = gst_element_get_static_pad (fakesrc, "src");
-  gst_pad_push_event (srcpad, gst_event_new_tag (list));
+  gst_pad_push_event (srcpad, gst_event_new_tag ("test", list));
   gst_object_unref (srcpad);
 
   bus = gst_element_get_bus (pipeline);