X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gst%2Fgstevent.c;h=a0b97f8a75eae62e43e4ae21cad28d722239b615;hb=ce67b0e539766275ba9d6bc6d4e41825e50eb791;hp=8c323aa1483929c5ee862125e3f42ffdef605bd4;hpb=c9bd4e4e96fd1953775c8053cf0d9b318968dabe;p=platform%2Fupstream%2Fgstreamer.git

diff --git a/gst/gstevent.c b/gst/gstevent.c
index 8c323aa..a0b97f8 100644
--- a/gst/gstevent.c
+++ b/gst/gstevent.c
@@ -36,19 +36,19 @@
  * elements will use gst_pad_send_event() or gst_pad_push_event().
  * The event should be unreffed with gst_event_unref() if it has not been sent.
  *
- * Events that have been received can be parsed with their respective 
+ * Events that have been received can be parsed with their respective
  * gst_event_parse_*() functions. It is valid to pass %NULL for unwanted details.
  *
  * Events are passed between elements in parallel to the data stream. Some events
  * are serialized with buffers, others are not. Some events only travel downstream,
- * others only upstream. Some events can travel both upstream and downstream. 
- * 
+ * others only upstream. Some events can travel both upstream and downstream.
+ *
  * The events are used to signal special conditions in the datastream such as
  * EOS (end of stream) or the start of a new stream-segment.
  * Events are also used to flush the pipeline of any pending data.
  *
- * Most of the event API is used inside plugins. Applications usually only 
- * construct and use seek events. 
+ * Most of the event API is used inside plugins. Applications usually only
+ * construct and use seek events.
  * To do that gst_event_new_seek() is used to create a seek event. It takes
  * the needed parameters to specify seeking time and mode.
  * <example>
@@ -72,7 +72,7 @@
  *   </programlisting>
  * </example>
  *
- * Last reviewed on 2006-09-6 (0.10.10)
+ * Last reviewed on 2012-03-28 (0.11.3)
  */
 
 
@@ -84,21 +84,18 @@
 #include "gstenumtypes.h"
 #include "gstutils.h"
 #include "gstquark.h"
+#include "gstvalue.h"
 
-#define GST_EVENT_SEQNUM(e) ((GstEvent*)e)->abidata.seqnum
+GType _gst_event_type = 0;
 
-static void gst_event_finalize (GstEvent * event);
-static GstEvent *_gst_event_copy (GstEvent * event);
+typedef struct
+{
+  GstEvent event;
 
-static GstMiniObjectClass *parent_class = NULL;
+  GstStructure *structure;
+} GstEventImpl;
 
-void
-_gst_event_initialize (void)
-{
-  g_type_class_ref (gst_event_get_type ());
-  g_type_class_ref (gst_seek_flags_get_type ());
-  g_type_class_ref (gst_seek_type_get_type ());
-}
+#define GST_EVENT_STRUCTURE(e)  (((GstEventImpl *)(e))->structure)
 
 typedef struct
 {
@@ -111,25 +108,49 @@ static GstEventQuarks event_quarks[] = {
   {GST_EVENT_UNKNOWN, "unknown", 0},
   {GST_EVENT_FLUSH_START, "flush-start", 0},
   {GST_EVENT_FLUSH_STOP, "flush-stop", 0},
-  {GST_EVENT_EOS, "eos", 0},
-  {GST_EVENT_NEWSEGMENT, "newsegment", 0},
+  {GST_EVENT_STREAM_START, "stream-start", 0},
+  {GST_EVENT_CAPS, "caps", 0},
+  {GST_EVENT_STREAM_CONFIG, "stream-config", 0},
+  {GST_EVENT_SEGMENT, "segment", 0},
   {GST_EVENT_TAG, "tag", 0},
   {GST_EVENT_BUFFERSIZE, "buffersize", 0},
   {GST_EVENT_SINK_MESSAGE, "sink-message", 0},
+  {GST_EVENT_EOS, "eos", 0},
+  {GST_EVENT_SEGMENT_DONE, "segment-done", 0},
+  {GST_EVENT_GAP, "gap", 0},
   {GST_EVENT_QOS, "qos", 0},
   {GST_EVENT_SEEK, "seek", 0},
   {GST_EVENT_NAVIGATION, "navigation", 0},
   {GST_EVENT_LATENCY, "latency", 0},
   {GST_EVENT_STEP, "step", 0},
+  {GST_EVENT_RECONFIGURE, "reconfigure", 0},
   {GST_EVENT_CUSTOM_UPSTREAM, "custom-upstream", 0},
   {GST_EVENT_CUSTOM_DOWNSTREAM, "custom-downstream", 0},
   {GST_EVENT_CUSTOM_DOWNSTREAM_OOB, "custom-downstream-oob", 0},
+  {GST_EVENT_CUSTOM_DOWNSTREAM_STICKY, "custom-downstream-sticky", 0},
   {GST_EVENT_CUSTOM_BOTH, "custom-both", 0},
   {GST_EVENT_CUSTOM_BOTH_OOB, "custom-both-oob", 0},
 
   {0, NULL, 0}
 };
 
+GST_DEFINE_MINI_OBJECT_TYPE (GstEvent, gst_event);
+
+void
+_priv_gst_event_initialize (void)
+{
+  gint i;
+
+  _gst_event_type = gst_event_get_type ();
+
+  g_type_class_ref (gst_seek_flags_get_type ());
+  g_type_class_ref (gst_seek_type_get_type ());
+
+  for (i = 0; event_quarks[i].name; i++) {
+    event_quarks[i].quark = g_quark_from_static_string (event_quarks[i].name);
+  }
+}
+
 /**
  * gst_event_type_get_name:
  * @type: the event type
@@ -183,99 +204,73 @@ gst_event_type_get_flags (GstEventType type)
 {
   GstEventTypeFlags ret;
 
-  ret = type & ((1 << GST_EVENT_TYPE_SHIFT) - 1);
+  ret = type & ((1 << GST_EVENT_NUM_SHIFT) - 1);
 
   return ret;
 }
 
-#define _do_init \
-{ \
-  gint i; \
-  \
-  for (i = 0; event_quarks[i].name; i++) { \
-    event_quarks[i].quark = g_quark_from_static_string (event_quarks[i].name); \
-  } \
-}
-
-G_DEFINE_TYPE_WITH_CODE (GstEvent, gst_event, GST_TYPE_MINI_OBJECT, _do_init);
-
-static void
-gst_event_class_init (GstEventClass * klass)
-{
-  parent_class = g_type_class_peek_parent (klass);
-
-  klass->mini_object_class.copy = (GstMiniObjectCopyFunction) _gst_event_copy;
-  klass->mini_object_class.finalize =
-      (GstMiniObjectFinalizeFunction) gst_event_finalize;
-}
-
 static void
-gst_event_init (GstEvent * event)
+_gst_event_free (GstEvent * event)
 {
-  GST_EVENT_TIMESTAMP (event) = GST_CLOCK_TIME_NONE;
-}
+  GstStructure *s;
 
-static void
-gst_event_finalize (GstEvent * event)
-{
   g_return_if_fail (event != NULL);
   g_return_if_fail (GST_IS_EVENT (event));
 
   GST_CAT_LOG (GST_CAT_EVENT, "freeing event %p type %s", event,
       GST_EVENT_TYPE_NAME (event));
 
-  if (GST_EVENT_SRC (event)) {
-    gst_object_unref (GST_EVENT_SRC (event));
-    GST_EVENT_SRC (event) = NULL;
-  }
-  if (event->structure) {
-    gst_structure_set_parent_refcount (event->structure, NULL);
-    gst_structure_free (event->structure);
+  s = GST_EVENT_STRUCTURE (event);
+
+  if (s) {
+    gst_structure_set_parent_refcount (s, NULL);
+    gst_structure_free (s);
   }
 
-/*   GST_MINI_OBJECT_CLASS (parent_class)->finalize (GST_MINI_OBJECT (event)); */
+  g_slice_free1 (GST_MINI_OBJECT_SIZE (event), event);
 }
 
+static void gst_event_init (GstEventImpl * event, gsize size,
+    GstEventType type);
+
 static GstEvent *
 _gst_event_copy (GstEvent * event)
 {
-  GstEvent *copy;
+  GstEventImpl *copy;
+  GstStructure *s;
+
+  copy = g_slice_new0 (GstEventImpl);
 
-  copy = (GstEvent *) gst_mini_object_new (GST_TYPE_EVENT);
+  gst_event_init (copy, sizeof (GstEventImpl), GST_EVENT_TYPE (event));
 
-  GST_EVENT_TYPE (copy) = GST_EVENT_TYPE (event);
   GST_EVENT_TIMESTAMP (copy) = GST_EVENT_TIMESTAMP (event);
   GST_EVENT_SEQNUM (copy) = GST_EVENT_SEQNUM (event);
 
-  if (GST_EVENT_SRC (event)) {
-    GST_EVENT_SRC (copy) = gst_object_ref (GST_EVENT_SRC (event));
-  }
-  if (event->structure) {
-    copy->structure = gst_structure_copy (event->structure);
-    gst_structure_set_parent_refcount (copy->structure,
-        &copy->mini_object.refcount);
+  s = GST_EVENT_STRUCTURE (event);
+  if (s) {
+    GST_EVENT_STRUCTURE (copy) = gst_structure_copy (s);
+    gst_structure_set_parent_refcount (GST_EVENT_STRUCTURE (copy),
+        &copy->event.mini_object.refcount);
+  } else {
+    GST_EVENT_STRUCTURE (copy) = NULL;
   }
-  return copy;
+  return GST_EVENT_CAST (copy);
 }
 
-static GstEvent *
-gst_event_new (GstEventType type)
+static void
+gst_event_init (GstEventImpl * event, gsize size, GstEventType type)
 {
-  GstEvent *event;
+  gst_mini_object_init (GST_MINI_OBJECT_CAST (event), _gst_event_type, size);
 
-  event = (GstEvent *) gst_mini_object_new (GST_TYPE_EVENT);
+  event->event.mini_object.copy = (GstMiniObjectCopyFunction) _gst_event_copy;
+  event->event.mini_object.free = (GstMiniObjectFreeFunction) _gst_event_free;
 
-  GST_CAT_DEBUG (GST_CAT_EVENT, "creating new event %p %s %d", event,
-      gst_event_type_get_name (type), type);
-
-  event->type = type;
-  event->src = NULL;
-  event->structure = NULL;
+  GST_EVENT_TYPE (event) = type;
+  GST_EVENT_TIMESTAMP (event) = GST_CLOCK_TIME_NONE;
   GST_EVENT_SEQNUM (event) = gst_util_seqnum_next ();
-
-  return event;
 }
 
+
 /**
  * gst_event_new_custom:
  * @type: The type of the new event
@@ -298,18 +293,33 @@ gst_event_new (GstEventType type)
 GstEvent *
 gst_event_new_custom (GstEventType type, GstStructure * structure)
 {
-  GstEvent *event;
+  GstEventImpl *event;
 
-  /* structure must not have a parent */
-  if (structure)
-    g_return_val_if_fail (structure->parent_refcount == NULL, NULL);
+  event = g_slice_new0 (GstEventImpl);
+
+  GST_CAT_DEBUG (GST_CAT_EVENT, "creating new event %p %s %d", event,
+      gst_event_type_get_name (type), type);
 
-  event = gst_event_new (type);
   if (structure) {
-    gst_structure_set_parent_refcount (structure, &event->mini_object.refcount);
-    event->structure = structure;
+    /* structure must not have a parent */
+    if (!gst_structure_set_parent_refcount (structure,
+            &event->event.mini_object.refcount))
+      goto had_parent;
+
+  }
+  gst_event_init (event, sizeof (GstEventImpl), type);
+
+  GST_EVENT_STRUCTURE (event) = structure;
+
+  return GST_EVENT_CAST (event);
+
+  /* ERRORS */
+had_parent:
+  {
+    g_slice_free1 (GST_MINI_OBJECT_SIZE (event), event);
+    g_warning ("structure is already owned by another object");
+    return NULL;
   }
-  return event;
 }
 
 /**
@@ -329,7 +339,40 @@ gst_event_get_structure (GstEvent * event)
 {
   g_return_val_if_fail (GST_IS_EVENT (event), NULL);
 
-  return event->structure;
+  return GST_EVENT_STRUCTURE (event);
+}
+
+/**
+ * gst_event_writable_structure:
+ * @event: The #GstEvent.
+ *
+ * Get a writable version of the structure.
+ *
+ * Returns: The structure of the event. The structure is still
+ * owned by the event, which means that you should not free it and
+ * that the pointer becomes invalid when you free the event.
+ * This function checks if @event is writable and will never return NULL.
+ *
+ * MT safe.
+ */
+GstStructure *
+gst_event_writable_structure (GstEvent * event)
+{
+  GstStructure *structure;
+
+  g_return_val_if_fail (GST_IS_EVENT (event), NULL);
+  g_return_val_if_fail (gst_event_is_writable (event), NULL);
+
+  structure = GST_EVENT_STRUCTURE (event);
+
+  if (structure == NULL) {
+    structure =
+        gst_structure_new_id_empty (gst_event_type_to_quark (GST_EVENT_TYPE
+            (event)));
+    gst_structure_set_parent_refcount (structure, &event->mini_object.refcount);
+    GST_EVENT_STRUCTURE (event) = structure;
+  }
+  return structure;
 }
 
 /**
@@ -349,10 +392,10 @@ gst_event_has_name (GstEvent * event, const gchar * name)
 {
   g_return_val_if_fail (GST_IS_EVENT (event), FALSE);
 
-  if (event->structure == NULL)
+  if (GST_EVENT_STRUCTURE (event) == NULL)
     return FALSE;
 
-  return gst_structure_has_name (event->structure, name);
+  return gst_structure_has_name (GST_EVENT_STRUCTURE (event), name);
 }
 
 /**
@@ -409,10 +452,6 @@ gst_event_set_seqnum (GstEvent * event, guint32 seqnum)
   GST_EVENT_SEQNUM (event) = seqnum;
 }
 
-/* FIXME 0.11: It would be nice to have flush events
- * that don't reset the running time in the sinks
- */
-
 /**
  * gst_event_new_flush_start:
  *
@@ -420,9 +459,9 @@ gst_event_set_seqnum (GstEvent * event, guint32 seqnum)
  * upstream and downstream and travels out-of-bounds with the dataflow.
  *
  * It marks pads as being flushing and will make them return
- * #GST_FLOW_WRONG_STATE when used for data flow with gst_pad_push(),
- * gst_pad_chain(), gst_pad_alloc_buffer(), gst_pad_get_range() and
- * gst_pad_pull_range(). Any event (except a #GST_EVENT_FLUSH_STOP) received
+ * #GST_FLOW_FLUSHING when used for data flow with gst_pad_push(),
+ * gst_pad_chain(), gst_pad_get_range() and gst_pad_pull_range().
+ * Any event (except a #GST_EVENT_FLUSH_STOP) received
  * on a flushing pad will return %FALSE immediately.
  *
  * Elements should unlock any blocking functions and exit their streaming
@@ -436,11 +475,12 @@ gst_event_set_seqnum (GstEvent * event, guint32 seqnum)
 GstEvent *
 gst_event_new_flush_start (void)
 {
-  return gst_event_new (GST_EVENT_FLUSH_START);
+  return gst_event_new_custom (GST_EVENT_FLUSH_START, NULL);
 }
 
 /**
  * gst_event_new_flush_stop:
+ * @reset_time: if time should be reset
  *
  * Allocate a new flush stop event. The flush stop event can be sent
  * upstream and downstream and travels serialized with the dataflow.
@@ -456,9 +496,39 @@ gst_event_new_flush_start (void)
  * Returns: (transfer full): a new flush stop event.
  */
 GstEvent *
-gst_event_new_flush_stop (void)
+gst_event_new_flush_stop (gboolean reset_time)
+{
+  GstEvent *event;
+
+  GST_CAT_INFO (GST_CAT_EVENT, "creating flush stop %d", reset_time);
+
+  event = gst_event_new_custom (GST_EVENT_FLUSH_STOP,
+      gst_structure_new_id (GST_QUARK (EVENT_FLUSH_STOP),
+          GST_QUARK (RESET_TIME), G_TYPE_BOOLEAN, reset_time, NULL));
+
+  return event;
+}
+
+/**
+ * gst_event_parse_flush_stop:
+ * @event: The event to parse
+ * @reset_time: (out): if time should be reset
+ *
+ * Parse the FLUSH_STOP event and retrieve the @reset_time member.
+ */
+void
+gst_event_parse_flush_stop (GstEvent * event, gboolean * reset_time)
 {
-  return gst_event_new (GST_EVENT_FLUSH_STOP);
+  GstStructure *structure;
+
+  g_return_if_fail (GST_IS_EVENT (event));
+  g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP);
+
+  structure = GST_EVENT_STRUCTURE (event);
+  if (G_LIKELY (reset_time))
+    *reset_time =
+        g_value_get_boolean (gst_structure_id_get_value (structure,
+            GST_QUARK (RESET_TIME)));
 }
 
 /**
@@ -466,7 +536,7 @@ gst_event_new_flush_stop (void)
  *
  * Create a new EOS event. The eos event can only travel downstream
  * synchronized with the buffer flow. Elements that receive the EOS
- * event on a pad can return #GST_FLOW_UNEXPECTED as a #GstFlowReturn
+ * event on a pad can return #GST_FLOW_EOS as a #GstFlowReturn
  * when data after the EOS event arrives.
  *
  * The EOS event will travel down to the sink elements in the pipeline
@@ -483,69 +553,344 @@ gst_event_new_flush_stop (void)
 GstEvent *
 gst_event_new_eos (void)
 {
-  return gst_event_new (GST_EVENT_EOS);
+  return gst_event_new_custom (GST_EVENT_EOS, NULL);
 }
 
 /**
- * gst_event_new_new_segment:
- * @update: is this segment an update to a previous one
- * @rate: a new rate for playback
- * @format: The format of the segment values
- * @start: the start value of the segment
- * @stop: the stop value of the segment
- * @position: stream position
+ * gst_event_new_gap:
+ * @timestamp: the start time (pts) of the gap
+ * @duration: the duration of the gap
+ *
+ * Create a new GAP event. A gap event can be thought of as conceptually
+ * equivalent to a buffer to signal that there is no data for a certain
+ * amount of time. This is useful to signal a gap to downstream elements
+ * which may wait for data, such as muxers or mixers or overlays, especially
+ * for sparse streams such as subtitle streams.
  *
- * Allocate a new newsegment event with the given format/values tripplets
+ * Returns: (transfer full): the new GAP event.
+ */
+GstEvent *
+gst_event_new_gap (GstClockTime timestamp, GstClockTime duration)
+{
+  GstEvent *event;
+
+  g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (timestamp), NULL);
+  g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (duration), NULL);
+
+  GST_CAT_TRACE (GST_CAT_EVENT, "creating gap %" GST_TIME_FORMAT " - "
+      "%" GST_TIME_FORMAT " (duration: %" GST_TIME_FORMAT ")",
+      GST_TIME_ARGS (timestamp), GST_TIME_ARGS (timestamp + duration),
+      GST_TIME_ARGS (duration));
+
+  event = gst_event_new_custom (GST_EVENT_GAP,
+      gst_structure_new_id (GST_QUARK (EVENT_GAP),
+          GST_QUARK (TIMESTAMP), GST_TYPE_CLOCK_TIME, timestamp,
+          GST_QUARK (DURATION), GST_TYPE_CLOCK_TIME, duration, NULL));
+
+  return event;
+}
+
+/**
+ * gst_event_parse_gap:
+ * @event: a #GstEvent of type #GST_EVENT_GAP
+ * @timestamp: (out) (allow-none): location where to store the
+ *     start time (pts) of the gap, or %NULL
+ * @duration: (out) (allow-none): location where to store the duration of
+ *     the gap, or %NULL
+ *
+ * Extract timestamp and duration from a new GAP event.
+ */
+void
+gst_event_parse_gap (GstEvent * event, GstClockTime * timestamp,
+    GstClockTime * duration)
+{
+  GstStructure *structure;
+
+  g_return_if_fail (GST_IS_EVENT (event));
+  g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_GAP);
+
+  structure = GST_EVENT_STRUCTURE (event);
+  gst_structure_id_get (structure,
+      GST_QUARK (TIMESTAMP), GST_TYPE_CLOCK_TIME, timestamp,
+      GST_QUARK (DURATION), GST_TYPE_CLOCK_TIME, duration, NULL);
+}
+
+/**
+ * gst_event_new_caps:
+ * @caps: (transfer none): a #GstCaps
  *
- * This method calls gst_event_new_new_segment_full() passing a default
- * value of 1.0 for applied_rate
+ * Create a new CAPS event for @caps. The caps event can only travel downstream
+ * synchronized with the buffer flow and contains the format of the buffers
+ * that will follow after the event.
  *
- * Returns: (transfer full): a new newsegment event.
+ * Returns: (transfer full): the new CAPS event.
  */
 GstEvent *
-gst_event_new_new_segment (gboolean update, gdouble rate, GstFormat format,
-    gint64 start, gint64 stop, gint64 position)
+gst_event_new_caps (GstCaps * caps)
 {
-  return gst_event_new_new_segment_full (update, rate, 1.0, format, start,
-      stop, position);
+  GstEvent *event;
+
+  g_return_val_if_fail (caps != NULL, NULL);
+  g_return_val_if_fail (gst_caps_is_fixed (caps), NULL);
+
+  GST_CAT_INFO (GST_CAT_EVENT, "creating caps event %" GST_PTR_FORMAT, caps);
+
+  event = gst_event_new_custom (GST_EVENT_CAPS,
+      gst_structure_new_id (GST_QUARK (EVENT_CAPS),
+          GST_QUARK (CAPS), GST_TYPE_CAPS, caps, NULL));
+
+  return event;
 }
 
 /**
- * gst_event_parse_new_segment:
- * @event: The event to query
- * @update: (out): A pointer to the update flag of the segment
- * @rate: (out): A pointer to the rate of the segment
- * @format: (out): A pointer to the format of the newsegment values
- * @start: (out): A pointer to store the start value in
- * @stop: (out): A pointer to store the stop value in
- * @position: (out): A pointer to store the stream time in
- *
- * Get the update flag, rate, format, start, stop and position in the 
- * newsegment event. In general, gst_event_parse_new_segment_full() should
- * be used instead of this, to also retrieve the applied_rate value of the
- * segment. See gst_event_new_new_segment_full() for a full description 
- * of the newsegment event.
+ * gst_event_parse_caps:
+ * @event: The event to parse
+ * @caps: (out): A pointer to the caps
+ *
+ * Get the caps from @event. The caps remains valid as long as @event remains
+ * valid.
  */
 void
-gst_event_parse_new_segment (GstEvent * event, gboolean * update,
-    gdouble * rate, GstFormat * format, gint64 * start,
-    gint64 * stop, gint64 * position)
+gst_event_parse_caps (GstEvent * event, GstCaps ** caps)
 {
-  gst_event_parse_new_segment_full (event, update, rate, NULL, format, start,
-      stop, position);
+  GstStructure *structure;
+
+  g_return_if_fail (GST_IS_EVENT (event));
+  g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_CAPS);
+
+  structure = GST_EVENT_STRUCTURE (event);
+  if (G_LIKELY (caps))
+    *caps =
+        g_value_get_boxed (gst_structure_id_get_value (structure,
+            GST_QUARK (CAPS)));
 }
 
 /**
- * gst_event_new_new_segment_full:
- * @update: Whether this segment is an update to a previous one
- * @rate: A new rate for playback
- * @applied_rate: The rate factor which has already been applied
- * @format: The format of the segment values
- * @start: The start value of the segment
- * @stop: The stop value of the segment
- * @position: stream position
+ * gst_event_new_stream_config:
+ * @flags: the stream config flags
+ *
+ * Create a new STREAM CONFIG event. The stream config event travels
+ * downstream synchronized with the buffer flow and contains stream
+ * configuration information for the stream, such as stream-headers
+ * or setup-data. It is optional and should be sent after the CAPS
+ * event.
  *
- * Allocate a new newsegment event with the given format/values triplets.
+ * Returns: (transfer full): the new STREAM CONFIG event.
+ */
+GstEvent *
+gst_event_new_stream_config (GstStreamConfigFlags flags)
+{
+  GstEvent *event;
+
+  GST_CAT_INFO (GST_CAT_EVENT, "creating stream info event, flags=0x%x", flags);
+
+  event = gst_event_new_custom (GST_EVENT_STREAM_CONFIG,
+      gst_structure_new_id (GST_QUARK (EVENT_STREAM_CONFIG),
+          GST_QUARK (FLAGS), GST_TYPE_STREAM_CONFIG_FLAGS, flags, NULL));
+
+  return event;
+}
+
+/**
+ * gst_event_parse_stream_config:
+ * @event: The event to parse
+ * @flags: (out): a pointer to a variable to store the stream config flags
+ *
+ * Get the stream config flags from @event.
+ */
+void
+gst_event_parse_stream_config (GstEvent * event, GstStreamConfigFlags * flags)
+{
+  GstStructure *structure;
+
+  g_return_if_fail (GST_IS_EVENT (event));
+  g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_CONFIG);
+
+  structure = GST_EVENT_STRUCTURE (event);
+  if (G_LIKELY (flags != NULL)) {
+    *flags =
+        g_value_get_enum (gst_structure_id_get_value (structure,
+            GST_QUARK (FLAGS)));
+  }
+}
+
+/**
+ * gst_event_set_stream_config_setup_data:
+ * @event: a stream config event
+ * @buf: a #GstBuffer with setup data
+ *
+ * Set setup data on the stream info event to signal out of bound setup data
+ * to downstream elements. Unlike stream headers, setup data contains data
+ * that is required to interpret the data stream, but is not valid as-is
+ * inside the data stream and thus can't just be prepended to or inserted
+ * into the data stream.
+ */
+void
+gst_event_set_stream_config_setup_data (GstEvent * event, GstBuffer * buf)
+{
+  GstStructure *s;
+
+  g_return_if_fail (GST_IS_EVENT (event));
+  g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_CONFIG);
+  g_return_if_fail (GST_IS_BUFFER (buf) && gst_buffer_get_size (buf) > 0);
+
+  s = GST_EVENT_STRUCTURE (event);
+  gst_structure_id_set (s, GST_QUARK (SETUP_DATA), GST_TYPE_BUFFER, buf, NULL);
+}
+
+/**
+ * gst_event_parse_stream_config_setup_data:
+ * @event: a stream config event
+ * @buf: (out) (transfer none): location where to store the #GstBuffer with setup data
+ *
+ * Extracts the setup data buffer from the stream info event. Will store
+ * %NULL in @buf if the event contains no setup data. The buffer returned
+ * will remain valid as long as @event remains valid. The caller should
+ * acquire a reference to to @buf if needed.
+ *
+ * Returns: TRUE if @event contained setup data and @buf has been set,
+ *     otherwise FALSE.
+ */
+gboolean
+gst_event_parse_stream_config_setup_data (GstEvent * event, GstBuffer ** buf)
+{
+  const GValue *val;
+  GstStructure *s;
+
+  g_return_val_if_fail (GST_IS_EVENT (event), FALSE);
+  g_return_val_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_CONFIG,
+      FALSE);
+  g_return_val_if_fail (buf != NULL, FALSE);
+
+  s = GST_EVENT_STRUCTURE (event);
+  val = gst_structure_id_get_value (s, GST_QUARK (SETUP_DATA));
+  if (val != NULL)
+    *buf = g_value_get_boxed (val);
+  else
+    *buf = NULL;
+
+  return (*buf != NULL);
+}
+
+/**
+ * gst_event_add_stream_config_header:
+ * @event: a stream config event
+ * @buf: a #GstBuffer with stream header data
+ *
+ * Adds a stream header to the stream info event to signal stream headers to
+ * to downstream elements such as multifilesink, tcpserversink etc. Stream
+ * headers can be and should usually be prepended to the data stream at any
+ * point in the stream (which requires a streamable format), e.g. to a new
+ * client connecting, or when starting a new file segment. stream header
+ * buffers will all be used together in the order they were added to the
+ * stream config event. Stream headers are sent as buffers at the beginning
+ * of the data flow in addition to the stream config event. Elements that
+ * care about stream headers need to make sure that they don't insert or
+ * interpret these header buffers twice if they interpret them.
+ */
+void
+gst_event_add_stream_config_header (GstEvent * event, GstBuffer * buf)
+{
+  GstStructure *s;
+  GValue buf_val = { 0, };
+  GValue *val;
+
+  g_return_if_fail (GST_IS_EVENT (event));
+  g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_CONFIG);
+  g_return_if_fail (GST_IS_BUFFER (buf) && gst_buffer_get_size (buf) > 0);
+
+  g_value_init (&buf_val, GST_TYPE_BUFFER);
+  g_value_set_boxed (&buf_val, buf);
+
+  s = GST_EVENT_STRUCTURE (event);
+  val = (GValue *) gst_structure_id_get_value (s, GST_QUARK (STREAM_HEADERS));
+  if (val == NULL) {
+    GValue new_array = { 0, };
+
+    g_value_init (&new_array, GST_TYPE_ARRAY);
+    gst_value_array_append_value (&new_array, &buf_val);
+    gst_structure_id_take_value (s, GST_QUARK (STREAM_HEADERS), &new_array);
+  } else {
+    gst_value_array_append_value (val, &buf_val);
+  }
+  g_value_unset (&buf_val);
+}
+
+/**
+ * gst_event_get_n_stream_config_headers:
+ * @event: a stream config event
+ *
+ * Extract the number of stream header buffers.
+ *
+ * Returns: the number of stream header buffers attached to the stream info
+ * @event.
+ */
+guint
+gst_event_get_n_stream_config_headers (GstEvent * event)
+{
+  const GValue *val;
+  GstStructure *s;
+  guint num = 0;
+
+  g_return_val_if_fail (GST_IS_EVENT (event), 0);
+  g_return_val_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_CONFIG, 0);
+
+  s = GST_EVENT_STRUCTURE (event);
+  val = gst_structure_id_get_value (s, GST_QUARK (STREAM_HEADERS));
+
+  if (val != NULL)
+    num = gst_value_array_get_size (val);
+
+  return num;
+}
+
+/**
+ * gst_event_parse_nth_stream_config_header:
+ * @event: a stream config event
+ * @index: number of the stream header to retrieve
+ * @buf: (out) (transfer none): location where to store the n-th stream
+ *     header #GstBuffer
+ *
+ * Retrieves the n-th stream header buffer attached to the stream config
+ * event and stores it in @buf. Will store %NULL in @buf if there is no such
+ * stream header.
+ *
+ * Returns: TRUE if @event contained a stream header at @index and @buf has
+ *    been set, otherwise FALSE.
+ */
+gboolean
+gst_event_parse_nth_stream_config_header (GstEvent * event, guint index,
+    GstBuffer ** buf)
+{
+  const GValue *val, *buf_val;
+  GstStructure *s;
+  GstBuffer *ret = NULL;
+
+  g_return_val_if_fail (GST_IS_EVENT (event), FALSE);
+  g_return_val_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_CONFIG,
+      FALSE);
+  g_return_val_if_fail (buf != NULL, FALSE);
+
+  s = GST_EVENT_STRUCTURE (event);
+  val = gst_structure_id_get_value (s, GST_QUARK (STREAM_HEADERS));
+
+  if (val != NULL) {
+    buf_val = gst_value_array_get_value (val, index);
+    if (buf_val != NULL)
+      ret = g_value_get_boxed (buf_val);
+  }
+
+  *buf = ret;
+  return (ret != NULL);
+}
+
+/**
+ * gst_event_new_segment:
+ * @segment: (transfer none): a #GstSegment
+ *
+ * Create a new SEGMENT event for @segment. The segment event can only travel
+ * downstream synchronized with the buffer flow and contains timing information
+ * and playback properties for the buffers that will follow.
  *
  * The newsegment event marks the range of buffers to be processed. All
  * data not within the segment range is not to be processed. This can be
@@ -553,133 +898,94 @@ gst_event_parse_new_segment (GstEvent * event, gboolean * update,
  * unneeded data. The valid range is expressed with the @start and @stop
  * values.
  *
- * The position value of the segment is used in conjunction with the start
- * value to convert the buffer timestamps into the stream time. This is 
- * usually done in sinks to report the current stream_time. 
- * @position represents the stream_time of a buffer carrying a timestamp of 
- * @start. @position cannot be -1.
+ * The time value of the segment is used in conjunction with the start
+ * value to convert the buffer timestamps into the stream time. This is
+ * usually done in sinks to report the current stream_time.
+ * @time represents the stream_time of a buffer carrying a timestamp of
+ * @start. @time cannot be -1.
  *
  * @start cannot be -1, @stop can be -1. If there
- * is a valid @stop given, it must be greater or equal the @start, including 
+ * is a valid @stop given, it must be greater or equal the @start, including
  * when the indicated playback @rate is < 0.
  *
  * The @applied_rate value provides information about any rate adjustment that
- * has already been made to the timestamps and content on the buffers of the 
- * stream. (@rate * @applied_rate) should always equal the rate that has been 
- * requested for playback. For example, if an element has an input segment 
- * with intended playback @rate of 2.0 and applied_rate of 1.0, it can adjust 
- * incoming timestamps and buffer content by half and output a newsegment event 
+ * has already been made to the timestamps and content on the buffers of the
+ * stream. (@rate * @applied_rate) should always equal the rate that has been
+ * requested for playback. For example, if an element has an input segment
+ * with intended playback @rate of 2.0 and applied_rate of 1.0, it can adjust
+ * incoming timestamps and buffer content by half and output a newsegment event
  * with @rate of 1.0 and @applied_rate of 2.0
  *
  * After a newsegment event, the buffer stream time is calculated with:
  *
- *   position + (TIMESTAMP(buf) - start) * ABS (rate * applied_rate)
- *
- * Returns: (transfer full): a new newsegment event.
+ *   time + (TIMESTAMP(buf) - start) * ABS (rate * applied_rate)
  *
- * Since: 0.10.6
+ * Returns: (transfer full): the new SEGMENT event.
  */
 GstEvent *
-gst_event_new_new_segment_full (gboolean update, gdouble rate,
-    gdouble applied_rate, GstFormat format, gint64 start, gint64 stop,
-    gint64 position)
+gst_event_new_segment (const GstSegment * segment)
 {
   GstEvent *event;
-  GstStructure *structure;
-
-  g_return_val_if_fail (rate != 0.0, NULL);
-  g_return_val_if_fail (applied_rate != 0.0, NULL);
-  g_return_val_if_fail (format != GST_FORMAT_UNDEFINED, NULL);
 
-  if (format == GST_FORMAT_TIME) {
-    GST_CAT_INFO (GST_CAT_EVENT,
-        "creating newsegment update %d, rate %lf, format GST_FORMAT_TIME, "
-        "start %" GST_TIME_FORMAT ", stop %" GST_TIME_FORMAT
-        ", position %" GST_TIME_FORMAT,
-        update, rate, GST_TIME_ARGS (start),
-        GST_TIME_ARGS (stop), GST_TIME_ARGS (position));
-  } else {
-    GST_CAT_INFO (GST_CAT_EVENT,
-        "creating newsegment update %d, rate %lf, format %s, "
-        "start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT ", position %"
-        G_GINT64_FORMAT, update, rate, gst_format_get_name (format), start,
-        stop, position);
-  }
+  g_return_val_if_fail (segment != NULL, NULL);
+  g_return_val_if_fail (segment->rate != 0.0, NULL);
+  g_return_val_if_fail (segment->applied_rate != 0.0, NULL);
+  g_return_val_if_fail (segment->format != GST_FORMAT_UNDEFINED, NULL);
 
-  g_return_val_if_fail (position != -1, NULL);
-  g_return_val_if_fail (start != -1, NULL);
-  if (stop != -1)
-    g_return_val_if_fail (start <= stop, NULL);
+  GST_CAT_INFO (GST_CAT_EVENT, "creating segment event %" GST_SEGMENT_FORMAT,
+      segment);
 
-  structure = gst_structure_id_new (GST_QUARK (EVENT_NEWSEGMENT),
-      GST_QUARK (UPDATE), G_TYPE_BOOLEAN, update,
-      GST_QUARK (RATE), G_TYPE_DOUBLE, rate,
-      GST_QUARK (APPLIED_RATE), G_TYPE_DOUBLE, applied_rate,
-      GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
-      GST_QUARK (START), G_TYPE_INT64, start,
-      GST_QUARK (STOP), G_TYPE_INT64, stop,
-      GST_QUARK (POSITION), G_TYPE_INT64, position, NULL);
-  event = gst_event_new_custom (GST_EVENT_NEWSEGMENT, structure);
+  event = gst_event_new_custom (GST_EVENT_SEGMENT,
+      gst_structure_new_id (GST_QUARK (EVENT_SEGMENT),
+          GST_QUARK (SEGMENT), GST_TYPE_SEGMENT, segment, NULL));
 
   return event;
 }
 
 /**
- * gst_event_parse_new_segment_full:
- * @event: The event to query
- * @update: (out): A pointer to the update flag of the segment
- * @rate: (out): A pointer to the rate of the segment
- * @applied_rate: (out): A pointer to the applied_rate of the segment
- * @format: (out): A pointer to the format of the newsegment values
- * @start: (out): A pointer to store the start value in
- * @stop: (out): A pointer to store the stop value in
- * @position: (out): A pointer to store the stream time in
- *
- * Get the update, rate, applied_rate, format, start, stop and 
- * position in the newsegment event. See gst_event_new_new_segment_full() 
- * for a full description of the newsegment event.
- *
- * Since: 0.10.6
+ * gst_event_parse_segment:
+ * @event: The event to parse
+ * @segment: (out) (transfer none): a pointer to a #GstSegment
+ *
+ * Parses a segment @event and stores the result in the given @segment location.
+ * @segment remains valid only until the @event is freed. Don't modify the segment
+ * and make a copy if you want to modify it or store it for later use.
  */
 void
-gst_event_parse_new_segment_full (GstEvent * event, gboolean * update,
-    gdouble * rate, gdouble * applied_rate, GstFormat * format,
-    gint64 * start, gint64 * stop, gint64 * position)
+gst_event_parse_segment (GstEvent * event, const GstSegment ** segment)
 {
-  const GstStructure *structure;
+  GstStructure *structure;
 
   g_return_if_fail (GST_IS_EVENT (event));
-  g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT);
+  g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_SEGMENT);
 
-  structure = event->structure;
-  if (G_LIKELY (update))
-    *update =
-        g_value_get_boolean (gst_structure_id_get_value (structure,
-            GST_QUARK (UPDATE)));
-  if (G_LIKELY (rate))
-    *rate =
-        g_value_get_double (gst_structure_id_get_value (structure,
-            GST_QUARK (RATE)));
-  if (G_LIKELY (applied_rate))
-    *applied_rate =
-        g_value_get_double (gst_structure_id_get_value (structure,
-            GST_QUARK (APPLIED_RATE)));
-  if (G_LIKELY (format))
-    *format = (GstFormat)
-        g_value_get_enum (gst_structure_id_get_value (structure,
-            GST_QUARK (FORMAT)));
-  if (G_LIKELY (start))
-    *start =
-        g_value_get_int64 (gst_structure_id_get_value (structure,
-            GST_QUARK (START)));
-  if (G_LIKELY (stop))
-    *stop =
-        g_value_get_int64 (gst_structure_id_get_value (structure,
-            GST_QUARK (STOP)));
-  if (G_LIKELY (position))
-    *position =
-        g_value_get_int64 (gst_structure_id_get_value (structure,
-            GST_QUARK (POSITION)));
+  if (segment) {
+    structure = GST_EVENT_STRUCTURE (event);
+    *segment = g_value_get_boxed (gst_structure_id_get_value (structure,
+            GST_QUARK (SEGMENT)));
+  }
+}
+
+/**
+ * gst_event_copy_segment:
+ * @event: The event to parse
+ * @segment: a pointer to a #GstSegment
+ *
+ * Parses a segment @event and copies the #GstSegment into the location
+ * given by @segment.
+ */
+void
+gst_event_copy_segment (GstEvent * event, GstSegment * segment)
+{
+  const GstSegment *src;
+
+  g_return_if_fail (GST_IS_EVENT (event));
+  g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_SEGMENT);
+
+  if (segment) {
+    gst_event_parse_segment (event, &src);
+    gst_segment_copy_into (src, segment);
+  }
 }
 
 /**
@@ -716,7 +1022,7 @@ gst_event_parse_tag (GstEvent * event, GstTagList ** taglist)
   g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_TAG);
 
   if (taglist)
-    *taglist = (GstTagList *) event->structure;
+    *taglist = (GstTagList *) GST_EVENT_STRUCTURE (event);
 }
 
 /* buffersize event */
@@ -746,7 +1052,7 @@ gst_event_new_buffer_size (GstFormat format, gint64 minsize,
       ", maxsize %" G_GINT64_FORMAT ", async %d", gst_format_get_name (format),
       minsize, maxsize, async);
 
-  structure = gst_structure_id_new (GST_QUARK (EVENT_BUFFER_SIZE),
+  structure = gst_structure_new_id (GST_QUARK (EVENT_BUFFER_SIZE),
       GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
       GST_QUARK (MINSIZE), G_TYPE_INT64, minsize,
       GST_QUARK (MAXSIZE), G_TYPE_INT64, maxsize,
@@ -775,7 +1081,7 @@ gst_event_parse_buffer_size (GstEvent * event, GstFormat * format,
   g_return_if_fail (GST_IS_EVENT (event));
   g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_BUFFERSIZE);
 
-  structure = event->structure;
+  structure = GST_EVENT_STRUCTURE (event);
   if (format)
     *format = (GstFormat)
         g_value_get_enum (gst_structure_id_get_value (structure,
@@ -796,33 +1102,6 @@ gst_event_parse_buffer_size (GstEvent * event, GstFormat * format,
 
 /**
  * gst_event_new_qos:
- * @proportion: the proportion of the qos message
- * @diff: The time difference of the last Clock sync
- * @timestamp: The timestamp of the buffer
- *
- * Allocate a new qos event with the given values. This function calls
- * gst_event_new_qos_full() with the type set to #GST_QOS_TYPE_OVERFLOW
- * when diff is negative (buffers are in time) and #GST_QOS_TYPE_UNDERFLOW
- * when @diff is positive (buffers are late).
- *
- * Returns: (transfer full): a new QOS event.
- */
-GstEvent *
-gst_event_new_qos (gdouble proportion, GstClockTimeDiff diff,
-    GstClockTime timestamp)
-{
-  GstQOSType type;
-
-  if (diff <= 0)
-    type = GST_QOS_TYPE_OVERFLOW;
-  else
-    type = GST_QOS_TYPE_UNDERFLOW;
-
-  return gst_event_new_qos_full (type, proportion, diff, timestamp);
-}
-
-/**
- * gst_event_new_qos_full:
  * @type: the QoS type
  * @proportion: the proportion of the qos message
  * @diff: The time difference of the last Clock sync
@@ -872,11 +1151,9 @@ gst_event_new_qos (gdouble proportion, GstClockTimeDiff diff,
  * event and implement custom application specific QoS handling.
  *
  * Returns: (transfer full): a new QOS event.
- *
- * Since: 0.10.33
  */
 GstEvent *
-gst_event_new_qos_full (GstQOSType type, gdouble proportion,
+gst_event_new_qos (GstQOSType type, gdouble proportion,
     GstClockTimeDiff diff, GstClockTime timestamp)
 {
   GstEvent *event;
@@ -885,12 +1162,12 @@ gst_event_new_qos_full (GstQOSType type, gdouble proportion,
   /* diff must be positive or timestamp + diff must be positive */
   g_return_val_if_fail (diff >= 0 || -diff <= timestamp, NULL);
 
-  GST_CAT_INFO (GST_CAT_EVENT,
+  GST_CAT_LOG (GST_CAT_EVENT,
       "creating qos type %d, proportion %lf, diff %" G_GINT64_FORMAT
       ", timestamp %" GST_TIME_FORMAT, type, proportion,
       diff, GST_TIME_ARGS (timestamp));
 
-  structure = gst_structure_id_new (GST_QUARK (EVENT_QOS),
+  structure = gst_structure_new_id (GST_QUARK (EVENT_QOS),
       GST_QUARK (TYPE), GST_TYPE_QOS_TYPE, type,
       GST_QUARK (PROPORTION), G_TYPE_DOUBLE, proportion,
       GST_QUARK (DIFF), G_TYPE_INT64, diff,
@@ -903,35 +1180,16 @@ gst_event_new_qos_full (GstQOSType type, gdouble proportion,
 /**
  * gst_event_parse_qos:
  * @event: The event to query
- * @proportion: (out): A pointer to store the proportion in
- * @diff: (out): A pointer to store the diff in
- * @timestamp: (out): A pointer to store the timestamp in
- *
- * Get the proportion, diff and timestamp in the qos event. See
- * gst_event_new_qos() for more information about the different QoS values.
- */
-void
-gst_event_parse_qos (GstEvent * event, gdouble * proportion,
-    GstClockTimeDiff * diff, GstClockTime * timestamp)
-{
-  gst_event_parse_qos_full (event, NULL, proportion, diff, timestamp);
-}
-
-/**
- * gst_event_parse_qos_full:
- * @event: The event to query
  * @type: (out): A pointer to store the QoS type in
  * @proportion: (out): A pointer to store the proportion in
  * @diff: (out): A pointer to store the diff in
  * @timestamp: (out): A pointer to store the timestamp in
  *
  * Get the type, proportion, diff and timestamp in the qos event. See
- * gst_event_new_qos_full() for more information about the different QoS values.
- *
- * Since: 0.10.33
+ * gst_event_new_qos() for more information about the different QoS values.
  */
 void
-gst_event_parse_qos_full (GstEvent * event, GstQOSType * type,
+gst_event_parse_qos (GstEvent * event, GstQOSType * type,
     gdouble * proportion, GstClockTimeDiff * diff, GstClockTime * timestamp)
 {
   const GstStructure *structure;
@@ -939,7 +1197,7 @@ gst_event_parse_qos_full (GstEvent * event, GstQOSType * type,
   g_return_if_fail (GST_IS_EVENT (event));
   g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_QOS);
 
-  structure = event->structure;
+  structure = GST_EVENT_STRUCTURE (event);
   if (type)
     *type = (GstQOSType)
         g_value_get_enum (gst_structure_id_get_value (structure,
@@ -1027,7 +1285,7 @@ gst_event_new_seek (gdouble rate, GstFormat format, GstSeekFlags flags,
         stop);
   }
 
-  structure = gst_structure_id_new (GST_QUARK (EVENT_SEEK),
+  structure = gst_structure_new_id (GST_QUARK (EVENT_SEEK),
       GST_QUARK (RATE), G_TYPE_DOUBLE, rate,
       GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
       GST_QUARK (FLAGS), GST_TYPE_SEEK_FLAGS, flags,
@@ -1063,7 +1321,7 @@ gst_event_parse_seek (GstEvent * event, gdouble * rate,
   g_return_if_fail (GST_IS_EVENT (event));
   g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_SEEK);
 
-  structure = event->structure;
+  structure = GST_EVENT_STRUCTURE (event);
   if (rate)
     *rate =
         g_value_get_double (gst_structure_id_get_value (structure,
@@ -1135,7 +1393,7 @@ gst_event_new_latency (GstClockTime latency)
   GST_CAT_INFO (GST_CAT_EVENT,
       "creating latency event %" GST_TIME_FORMAT, GST_TIME_ARGS (latency));
 
-  structure = gst_structure_id_new (GST_QUARK (EVENT_LATENCY),
+  structure = gst_structure_new_id (GST_QUARK (EVENT_LATENCY),
       GST_QUARK (LATENCY), G_TYPE_UINT64, latency, NULL);
   event = gst_event_new_custom (GST_EVENT_LATENCY, structure);
 
@@ -1159,8 +1417,8 @@ gst_event_parse_latency (GstEvent * event, GstClockTime * latency)
 
   if (latency)
     *latency =
-        g_value_get_uint64 (gst_structure_id_get_value (event->structure,
-            GST_QUARK (LATENCY)));
+        g_value_get_uint64 (gst_structure_id_get_value (GST_EVENT_STRUCTURE
+            (event), GST_QUARK (LATENCY)));
 }
 
 /**
@@ -1200,7 +1458,7 @@ gst_event_new_step (GstFormat format, guint64 amount, gdouble rate,
 
   GST_CAT_INFO (GST_CAT_EVENT, "creating step event");
 
-  structure = gst_structure_id_new (GST_QUARK (EVENT_STEP),
+  structure = gst_structure_new_id (GST_QUARK (EVENT_STEP),
       GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
       GST_QUARK (AMOUNT), G_TYPE_UINT64, amount,
       GST_QUARK (RATE), G_TYPE_DOUBLE, rate,
@@ -1234,7 +1492,7 @@ gst_event_parse_step (GstEvent * event, GstFormat * format, guint64 * amount,
   g_return_if_fail (GST_IS_EVENT (event));
   g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_STEP);
 
-  structure = event->structure;
+  structure = GST_EVENT_STRUCTURE (event);
   if (format)
     *format =
         (GstFormat) g_value_get_enum (gst_structure_id_get_value (structure,
@@ -1254,6 +1512,30 @@ gst_event_parse_step (GstEvent * event, GstFormat * format, guint64 * amount,
 }
 
 /**
+ * gst_event_new_reconfigure:
+
+ * Create a new reconfigure event. The purpose of the reconfingure event is
+ * to travel upstream and make elements renegotiate their caps or reconfigure
+ * their buffer pools. This is useful when changing properties on elements
+ * or changing the topology of the pipeline.
+ *
+ * Returns: (transfer full): a new #GstEvent
+ *
+ * Since: 0.11.0
+ */
+GstEvent *
+gst_event_new_reconfigure (void)
+{
+  GstEvent *event;
+
+  GST_CAT_INFO (GST_CAT_EVENT, "creating reconfigure event");
+
+  event = gst_event_new_custom (GST_EVENT_RECONFIGURE, NULL);
+
+  return event;
+}
+
+/**
  * gst_event_new_sink_message:
  * @msg: (transfer none): the #GstMessage to be posted
  *
@@ -1276,7 +1558,7 @@ gst_event_new_sink_message (GstMessage * msg)
 
   GST_CAT_INFO (GST_CAT_EVENT, "creating sink-message event");
 
-  structure = gst_structure_id_new (GST_QUARK (EVENT_SINK_MESSAGE),
+  structure = gst_structure_new_id (GST_QUARK (EVENT_SINK_MESSAGE),
       GST_QUARK (MESSAGE), GST_TYPE_MESSAGE, msg, NULL);
   event = gst_event_new_custom (GST_EVENT_SINK_MESSAGE, structure);
 
@@ -1295,11 +1577,36 @@ gst_event_new_sink_message (GstMessage * msg)
 void
 gst_event_parse_sink_message (GstEvent * event, GstMessage ** msg)
 {
+  const GstStructure *structure;
+
   g_return_if_fail (GST_IS_EVENT (event));
   g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_SINK_MESSAGE);
 
+  structure = GST_EVENT_STRUCTURE (event);
   if (msg)
     *msg =
-        GST_MESSAGE (gst_value_dup_mini_object (gst_structure_id_get_value
-            (event->structure, GST_QUARK (MESSAGE))));
+        GST_MESSAGE (g_value_dup_boxed (gst_structure_id_get_value
+            (structure, GST_QUARK (MESSAGE))));
+}
+
+/**
+ * gst_event_new_stream_start
+ *
+ * Create a new STREAM_START event. The stream start event can only
+ * travel downstream synchronized with the buffer flow. It is expected
+ * to be the first event that is sent for a new stream.
+ *
+ * Source elements, demuxers and other elements that create new streams
+ * are supposed to send this event as the first event of a new stream. It
+ * should not be send after a flushing seek or in similar situations
+ * and is used to mark the beginning of a new logical stream. Elements
+ * combining multiple streams must ensure that this event is only forwarded
+ * downstream once and not for every single input stream.
+ *
+ * Returns: (transfer full): the new STREAM_START event.
+ */
+GstEvent *
+gst_event_new_stream_start (void)
+{
+  return gst_event_new_custom (GST_EVENT_STREAM_START, NULL);
 }