* 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 specity seeking time and mode.
+ * the needed parameters to specify seeking time and mode.
* <example>
* <title>performing a seek on a pipeline</title>
* <programlisting>
{0, NULL, 0}
};
+GST_DEFINE_MINI_OBJECT_TYPE (GstEvent, gst_event);
+
void
-_gst_event_initialize (void)
+_priv_gst_event_initialize (void)
{
gint i;
- _gst_event_type = gst_mini_object_register ("GstEvent");
+ _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 ());
if (structure == NULL) {
structure =
- gst_structure_id_empty_new (gst_event_type_to_quark (GST_EVENT_TYPE
+ 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;
* required.
*
* Note that events and messages share the same sequence number incrementor;
- * two events or messages will never not have the same sequence number unless
+ * two events or messages will never have the same sequence number unless
* that correspondence was made explicitly.
*
* Returns: The event's sequence number.
/**
* 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.
* Returns: (transfer full): a new flush stop event.
*/
GstEvent *
-gst_event_new_flush_stop (void)
+gst_event_new_flush_stop (gboolean reset_time)
{
- return gst_event_new (GST_EVENT_FLUSH_STOP);
+ 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)
+{
+ 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)));
}
/**
/**
* gst_event_new_caps:
- * @caps: a #GstCaps
+ * @caps: (transfer none): a #GstCaps
*
* 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
GST_CAT_INFO (GST_CAT_EVENT, "creating caps event %" GST_PTR_FORMAT, caps);
event = gst_event_new_custom (GST_EVENT_CAPS,
- gst_structure_id_new (GST_QUARK (EVENT_CAPS),
+ gst_structure_new_id (GST_QUARK (EVENT_CAPS),
GST_QUARK (CAPS), GST_TYPE_CAPS, caps, NULL));
return event;
/**
* gst_event_new_segment:
- * @segment: a #GstSegment
+ * @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
* Returns: (transfer full): the new SEGMENT event.
*/
GstEvent *
-gst_event_new_segment (GstSegment * segment)
+gst_event_new_segment (const GstSegment * segment)
{
GstEvent *event;
g_return_val_if_fail (segment != NULL, NULL);
- GST_CAT_INFO (GST_CAT_EVENT, "creating segment event %" GST_PTR_FORMAT,
+ GST_CAT_INFO (GST_CAT_EVENT, "creating segment event %" GST_SEGMENT_FORMAT,
segment);
event = gst_event_new_custom (GST_EVENT_SEGMENT,
- gst_structure_id_new (GST_QUARK (EVENT_SEGMENT),
+ gst_structure_new_id (GST_QUARK (EVENT_SEGMENT),
GST_QUARK (SEGMENT), GST_TYPE_SEGMENT, segment, NULL));
return event;
* Create a new buffersize event. The event is sent downstream and notifies
* elements that they should provide a buffer of the specified dimensions.
*
- * When the @async flag is set, a thread boundary is prefered.
+ * When the @async flag is set, a thread boundary is preferred.
*
* Returns: (transfer full): a new #GstEvent
*/
", 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,
structure = GST_EVENT_STRUCTURE (event);
if (format)
- *format =
+ *format = (GstFormat)
g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (FORMAT)));
if (minsize)
", 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,
structure = GST_EVENT_STRUCTURE (event);
if (type)
- *type =
+ *type = (GstQOSType)
g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (TYPE)));
if (proportion)
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,
g_value_get_double (gst_structure_id_get_value (structure,
GST_QUARK (RATE)));
if (format)
- *format =
+ *format = (GstFormat)
g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (FORMAT)));
if (flags)
- *flags =
+ *flags = (GstSeekFlags)
g_value_get_flags (gst_structure_id_get_value (structure,
GST_QUARK (FLAGS)));
if (start_type)
- *start_type =
+ *start_type = (GstSeekType)
g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (CUR_TYPE)));
if (start)
g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (CUR)));
if (stop_type)
- *stop_type =
+ *stop_type = (GstSeekType)
g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (STOP_TYPE)));
if (stop)
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);
* to skip @amount (expressed in @format) of media. It can be used to implement
* stepping through the video frame by frame or for doing fast trick modes.
*
- * A rate of <= 0.0 is not allowed, pause the pipeline or reverse the playback
- * direction of the pipeline to get the same effect.
+ * A rate of <= 0.0 is not allowed. Pause the pipeline, for the effect of rate
+ * = 0.0 or first reverse the direction of playback using a seek event to get
+ * the same effect as rate < 0.0.
*
* The @flush flag will clear any pending data in the pipeline before starting
* the step operation.
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,
structure = GST_EVENT_STRUCTURE (event);
if (format)
- *format = g_value_get_enum (gst_structure_id_get_value (structure,
+ *format =
+ (GstFormat) g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (FORMAT)));
if (amount)
*amount = g_value_get_uint64 (gst_structure_id_get_value (structure,
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);