/**
* SECTION:gstevent
+ * @title: GstEvent
* @short_description: Structure describing events that are passed up and down
* a pipeline
* @see_also: #GstPad, #GstElement
* ...
* // construct a seek event to play the media from second 2 to 5, flush
* // the pipeline to decrease latency.
- * event = gst_event_new_seek (1.0,
- * GST_FORMAT_TIME,
+ * event = gst_event_new_seek (1.0,
+ * GST_FORMAT_TIME,
* GST_SEEK_FLAG_FLUSH,
* GST_SEEK_TYPE_SET, 2 * GST_SECOND,
* GST_SEEK_TYPE_SET, 5 * GST_SECOND);
{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},
+ {GST_EVENT_STREAM_GROUP_DONE, "stream-group-done", 0},
{0, NULL, 0}
};
/**
* gst_event_new_select_streams:
- * @streams: (element-type gchar) (transfer none): the list of streams to
+ * @streams: (element-type utf8) (transfer none): the list of streams to
* activate
*
* Allocate a new select-streams event.
*
* The list of @streams corresponds to the "Stream ID" of each stream to be
* activated. Those ID can be obtained via the #GstStream objects present
- * in #GST_EVENT_STREAM_START, #GST_EVENT_STREAM_COLLECTION or
+ * in #GST_EVENT_STREAM_START, #GST_EVENT_STREAM_COLLECTION or
* #GST_MESSSAGE_STREAM_COLLECTION.
*
* Returns: (transfer full): a new select-streams event.
+ *
+ * Since: 1.10
*/
GstEvent *
gst_event_new_select_streams (GList * streams)
/**
* gst_event_parse_select_streams:
* @event: The event to parse
- * @streams: (out) (element-type gchar) (transfer full): the streams
+ * @streams: (out) (element-type utf8) (transfer full): the streams
*
* Parse the SELECT_STREAMS event and retrieve the contained streams.
+ *
+ * Since: 1.10
*/
void
gst_event_parse_select_streams (GstEvent * event, GList ** streams)
/**
+ * gst_event_new_stream_group_done:
+ * @group_id: the group id of the stream group which is ending
+ *
+ * Create a new Stream Group Done event. The stream-group-done event can
+ * only travel downstream synchronized with the buffer flow. Elements
+ * that receive the event on a pad should handle it mostly like EOS,
+ * and emit any data or pending buffers that would depend on more data
+ * arriving and unblock, since there won't be any more data.
+ *
+ * This event is followed by EOS at some point in the future, and is
+ * generally used when switching pads - to unblock downstream so that
+ * new pads can be exposed before sending EOS on the existing pads.
+ *
+ * Returns: (transfer full): the new stream-group-done event.
+ *
+ * Since: 1.10
+ */
+GstEvent *
+gst_event_new_stream_group_done (guint group_id)
+{
+ GstStructure *s;
+
+ s = gst_structure_new_id (GST_QUARK (EVENT_STREAM_GROUP_DONE),
+ GST_QUARK (GROUP_ID), G_TYPE_UINT, group_id, NULL);
+
+ return gst_event_new_custom (GST_EVENT_STREAM_GROUP_DONE, s);
+}
+
+/**
+ * gst_event_parse_stream_group_done:
+ * @event: a stream-group-done event.
+ * @group_id: (out): address of variable to store the group id into
+ *
+ * Parse a stream-group-done @event and store the result in the given
+ * @group_id location.
+ *
+ * Since: 1.10
+ */
+void
+gst_event_parse_stream_group_done (GstEvent * event, guint * group_id)
+{
+ g_return_if_fail (event != NULL);
+ g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_GROUP_DONE);
+
+ if (group_id) {
+ gst_structure_id_get (GST_EVENT_STRUCTURE (event),
+ GST_QUARK (GROUP_ID), G_TYPE_UINT, group_id, NULL);
+ }
+}
+
+/**
* gst_event_new_eos:
*
* Create a new EOS event. The eos event can only travel downstream
* @type indicates the reason for the QoS event. #GST_QOS_TYPE_OVERFLOW is
* used when a buffer arrived in time or when the sink cannot keep up with
* the upstream datarate. #GST_QOS_TYPE_UNDERFLOW is when the sink is not
- * receiving buffers fast enough and thus has to drop late buffers.
+ * receiving buffers fast enough and thus has to drop late buffers.
* #GST_QOS_TYPE_THROTTLE is used when the datarate is artificially limited
* by the application, for example to reduce power consumption.
*
*
* A pipeline has a default playback segment configured with a start
* position of 0, a stop position of -1 and a rate of 1.0. The currently
- * configured playback segment can be queried with #GST_QUERY_SEGMENT.
+ * configured playback segment can be queried with #GST_QUERY_SEGMENT.
*
- * @start_type and @stop_type specify how to adjust the currently configured
+ * @start_type and @stop_type specify how to adjust the currently configured
* start and stop fields in playback segment. Adjustments can be made relative
* or absolute to the last configured values. A type of #GST_SEEK_TYPE_NONE
* means that the position should not be updated.
*
* When the rate is positive and @start has been updated, playback will start
- * from the newly configured start position.
+ * from the newly configured start position.
*
* For negative rates, playback will start from the newly configured stop
* position (if any). If the stop position is updated, it must be different from
* @event: a stream-start event
* @stream: (transfer none): the stream object to set
*
- * Set the @stream on the stream-start @event
- **/
+ * Set the @stream on the stream-start @event
+ *
+ * Since: 1.10
+ */
void
gst_event_set_stream (GstEvent * event, GstStream * stream)
{
* @stream: (out) (transfer full): adress of variable to store the stream
*
* Parse a stream-start @event and extract the #GstStream from it.
- **/
+ *
+ * Since: 1.10
+ */
void
gst_event_parse_stream (GstEvent * event, GstStream ** stream)
{
* data flow.
*
* Returns: (transfer full): the new STREAM_COLLECTION event.
+ *
+ * Since: 1.10
*/
GstEvent *
gst_event_new_stream_collection (GstStreamCollection * collection)
return gst_event_new_custom (GST_EVENT_STREAM_COLLECTION, s);
}
+/**
+ * gst_event_parse_stream_collection:
+ * @event: a stream-collection event
+ * @collection: (out): pointer to store the collection
+ *
+ * Retrieve new #GstStreamCollection from STREAM_COLLECTION event @event.
+ *
+ * Since: 1.10
+ */
void
gst_event_parse_stream_collection (GstEvent * event,
GstStreamCollection ** collection)
projects / platform / upstream / gstreamer.git / blobdiff