mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-18 14:26:43 +00:00
Moved deep notify to GstObject
Original commit message from CVS: Moved deep notify to GstObject
This commit is contained in:
parent
4992cb5838
commit
6637a949e7
4 changed files with 116 additions and 110 deletions
117
gst/gstelement.c
117
gst/gstelement.c
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@ -41,7 +41,6 @@ enum {
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PAD_REMOVED,
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PAD_REMOVED,
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ERROR,
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ERROR,
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EOS,
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EOS,
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DEEP_NOTIFY,
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LAST_SIGNAL
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LAST_SIGNAL
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};
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};
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@ -60,7 +59,6 @@ static void gst_element_real_set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec);
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const GValue *value, GParamSpec *pspec);
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static void gst_element_real_get_property (GObject *object, guint prop_id, GValue *value,
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static void gst_element_real_get_property (GObject *object, guint prop_id, GValue *value,
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GParamSpec *pspec);
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GParamSpec *pspec);
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static void gst_element_dispatch_properties_changed (GObject * object, guint n_pspecs, GParamSpec **pspecs);
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static void gst_element_dispose (GObject *object);
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static void gst_element_dispose (GObject *object);
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@ -137,21 +135,10 @@ gst_element_class_init (GstElementClass *klass)
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g_signal_new ("eos", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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g_signal_new ("eos", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstElementClass,eos), NULL, NULL,
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G_STRUCT_OFFSET (GstElementClass,eos), NULL, NULL,
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gst_marshal_VOID__VOID, G_TYPE_NONE, 0);
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gst_marshal_VOID__VOID, G_TYPE_NONE, 0);
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gst_element_signals[DEEP_NOTIFY] =
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g_signal_new ("deep_notify", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE | G_SIGNAL_DETAILED | G_SIGNAL_NO_HOOKS,
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G_STRUCT_OFFSET (GstElementClass, deep_notify), NULL, NULL,
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gst_marshal_VOID__OBJECT_PARAM, G_TYPE_NONE,
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2, G_TYPE_OBJECT, G_TYPE_PARAM);
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gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_element_real_set_property);
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gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_element_real_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_element_real_get_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_element_real_get_property);
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/* see the comments at gst_element_dispatch_properties_changed */
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gobject_class->dispatch_properties_changed
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= GST_DEBUG_FUNCPTR (gst_element_dispatch_properties_changed);
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gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_element_dispose);
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gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_element_dispose);
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#ifndef GST_DISABLE_LOADSAVE
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#ifndef GST_DISABLE_LOADSAVE
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@ -214,87 +201,6 @@ gst_element_real_get_property (GObject *object, guint prop_id, GValue *value, GP
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(oclass->get_property) (object, prop_id, value, pspec);
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(oclass->get_property) (object, prop_id, value, pspec);
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}
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}
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/* Changing a GObject property of an element will result in "deep_notify"
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* signals being emitted by the element itself, as well as in each parent
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* element. This is so that an application can connect a listener to the
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* top-level bin to catch property-change notifications for all contained
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* elements. */
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static void
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gst_element_dispatch_properties_changed (GObject *object,
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guint n_pspecs,
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GParamSpec **pspecs)
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{
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GstObject *gst_object;
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guint i;
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/* do the standard dispatching */
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G_OBJECT_CLASS (parent_class)->dispatch_properties_changed (object, n_pspecs, pspecs);
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/* now let the parent dispatch those, too */
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gst_object = GST_OBJECT_PARENT (object);
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while (gst_object) {
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/* need own category? */
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for (i = 0; i < n_pspecs; i++) {
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GST_DEBUG (GST_CAT_EVENT, "deep notification from %s to %s (%s)", GST_OBJECT_NAME (object),
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GST_OBJECT_NAME (gst_object), pspecs[i]->name);
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g_signal_emit (gst_object, gst_element_signals[DEEP_NOTIFY], g_quark_from_string (pspecs[i]->name),
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(GstObject *) object, pspecs[i]);
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}
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gst_object = GST_OBJECT_PARENT (gst_object);
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}
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}
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/**
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* gst_element_default_deep_notify:
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* @object: the #GObject that signalled the notify.
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* @orig: a #GstObject that initiated the notify.
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* @pspec: a #GParamSpec of the property.
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* @excluded_props: a set of user-specified properties to exclude.
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*
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* Adds a default deep_notify signal callback to an
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* element. The user data should contain a pointer to an array of
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* strings that should be excluded from the notify.
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* The default handler will print the new value of the property
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* using g_print.
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*/
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void
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gst_element_default_deep_notify (GObject *object, GstObject *orig,
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GParamSpec *pspec, gchar **excluded_props)
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{
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GValue value = { 0, }; /* the important thing is that value.type = 0 */
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gchar *str = 0;
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if (pspec->flags & G_PARAM_READABLE) {
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/* let's not print these out for excluded properties... */
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while (excluded_props != NULL && *excluded_props != NULL) {
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if (strcmp (pspec->name, *excluded_props) == 0)
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return;
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excluded_props++;
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}
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g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
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g_object_get_property (G_OBJECT (orig), pspec->name, &value);
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if (G_IS_PARAM_SPEC_ENUM (pspec)) {
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GEnumValue *enum_value;
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enum_value = g_enum_get_value (G_ENUM_CLASS (g_type_class_ref (pspec->value_type)),
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g_value_get_enum (&value));
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str = g_strdup_printf ("%s (%d)", enum_value->value_nick,
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enum_value->value);
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}
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else {
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str = g_strdup_value_contents (&value);
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}
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g_print ("%s: %s = %s\n", GST_OBJECT_NAME (orig), pspec->name, str);
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g_free (str);
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g_value_unset (&value);
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} else {
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g_warning ("Parameter %s not readable in %s.",
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pspec->name, GST_OBJECT_NAME (orig));
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}
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}
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/**
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/**
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* gst_element_default_error:
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* gst_element_default_error:
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* @object: a #GObject that signalled the error.
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* @object: a #GObject that signalled the error.
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@ -1085,9 +991,8 @@ gst_element_get_pad (GstElement *element, const gchar *name)
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g_return_val_if_fail (GST_IS_ELEMENT (element), NULL);
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g_return_val_if_fail (GST_IS_ELEMENT (element), NULL);
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g_return_val_if_fail (name != NULL, NULL);
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g_return_val_if_fail (name != NULL, NULL);
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if ((pad = gst_element_get_static_pad (element, name)))
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pad = gst_element_get_static_pad (element, name);
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return pad;
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if (!pad)
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pad = gst_element_get_request_pad (element, name);
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pad = gst_element_get_request_pad (element, name);
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return pad;
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return pad;
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@ -2201,20 +2106,13 @@ gst_element_change_state (GstElement *element)
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break;
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break;
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}
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}
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/* tell the scheduler if we have one */
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if (element->sched) {
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if (gst_scheduler_state_transition (element->sched, element,
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old_transition) != GST_STATE_SUCCESS) {
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goto failure;
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}
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}
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parent = GST_ELEMENT_PARENT (element);
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parent = GST_ELEMENT_PARENT (element);
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GST_DEBUG_ELEMENT (GST_CAT_STATES, element,
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GST_DEBUG_ELEMENT (GST_CAT_STATES, element,
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"signaling state change from %s to %s",
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"signaling state change from %s to %s",
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gst_element_state_get_name (old_state),
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gst_element_state_get_name (old_state),
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gst_element_state_get_name (GST_STATE (element)));
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gst_element_state_get_name (GST_STATE (element)));
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g_signal_emit (G_OBJECT (element), gst_element_signals[STATE_CHANGE],
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g_signal_emit (G_OBJECT (element), gst_element_signals[STATE_CHANGE],
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0, old_state, GST_STATE (element));
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0, old_state, GST_STATE (element));
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@ -2224,11 +2122,20 @@ gst_element_change_state (GstElement *element)
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GST_STATE (element), element);
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GST_STATE (element), element);
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}
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}
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/* signal the state change in case somebody is waiting for us */
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/* signal the state change in case somebody is waiting for us */
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g_mutex_lock (element->state_mutex);
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g_mutex_lock (element->state_mutex);
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g_cond_signal (element->state_cond);
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g_cond_signal (element->state_cond);
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g_mutex_unlock (element->state_mutex);
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g_mutex_unlock (element->state_mutex);
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/* tell the scheduler if we have one */
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if (element->sched) {
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if (gst_scheduler_state_transition (element->sched, element,
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old_transition) != GST_STATE_SUCCESS) {
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goto failure;
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}
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}
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return GST_STATE_SUCCESS;
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return GST_STATE_SUCCESS;
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failure:
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failure:
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@ -128,6 +128,7 @@ struct _GstElement {
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GstElementSetClockFunction setclockfunc;
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GstElementSetClockFunction setclockfunc;
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GstElementGetClockFunction getclockfunc;
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GstElementGetClockFunction getclockfunc;
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GstClock *clock;
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GstClock *clock;
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GstClockTime base_time;
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/* element pads */
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/* element pads */
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guint16 numpads;
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guint16 numpads;
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@ -160,7 +161,6 @@ struct _GstElementClass {
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void (*pad_removed) (GstElement *element, GstPad *pad);
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void (*pad_removed) (GstElement *element, GstPad *pad);
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void (*error) (GstElement *element, GstElement *source, gchar *error);
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void (*error) (GstElement *element, GstElement *source, gchar *error);
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void (*eos) (GstElement *element);
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void (*eos) (GstElement *element);
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void (*deep_notify) (GstObject *object, GstObject *orig, GParamSpec *pspec);
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/* local pointers for get/set */
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/* local pointers for get/set */
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void (*set_property) (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
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void (*set_property) (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
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@ -182,8 +182,8 @@ void gst_element_class_add_pad_template (GstElementClass *klass, GstPadTemplat
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void gst_element_class_install_std_props (GstElementClass *klass,
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void gst_element_class_install_std_props (GstElementClass *klass,
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const gchar *first_name, ...);
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const gchar *first_name, ...);
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void gst_element_default_deep_notify (GObject *object, GstObject *orig,
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#define gst_element_default_deep_notify gst_object_default_deep_notify
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GParamSpec *pspec, gchar **excluded_props);
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void gst_element_default_error (GObject *object, GstObject *orig, gchar *error);
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void gst_element_default_error (GObject *object, GstObject *orig, gchar *error);
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GType gst_element_get_type (void);
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GType gst_element_get_type (void);
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@ -32,6 +32,7 @@ enum {
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#ifndef GST_DISABLE_LOADSAVE_REGISTRY
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#ifndef GST_DISABLE_LOADSAVE_REGISTRY
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OBJECT_SAVED,
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OBJECT_SAVED,
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#endif
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#endif
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DEEP_NOTIFY,
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LAST_SIGNAL
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LAST_SIGNAL
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};
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};
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@ -66,6 +67,9 @@ static void gst_object_set_property (GObject * object, guint prop_id, const G
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GParamSpec * pspec);
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GParamSpec * pspec);
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static void gst_object_get_property (GObject * object, guint prop_id, GValue * value,
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static void gst_object_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec);
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GParamSpec * pspec);
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static void gst_object_dispatch_properties_changed (GObject *object,
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guint n_pspecs,
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GParamSpec **pspecs);
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static void gst_object_dispose (GObject *object);
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static void gst_object_dispose (GObject *object);
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static void gst_object_finalize (GObject *object);
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static void gst_object_finalize (GObject *object);
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@ -133,10 +137,20 @@ gst_object_class_init (GstObjectClass *klass)
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klass->restore_thyself = gst_object_real_restore_thyself;
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klass->restore_thyself = gst_object_real_restore_thyself;
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#endif
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#endif
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gst_object_signals[DEEP_NOTIFY] =
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g_signal_new ("deep_notify", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE | G_SIGNAL_DETAILED | G_SIGNAL_NO_HOOKS,
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G_STRUCT_OFFSET (GstObjectClass, deep_notify), NULL, NULL,
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gst_marshal_VOID__OBJECT_PARAM, G_TYPE_NONE,
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2, G_TYPE_OBJECT, G_TYPE_PARAM);
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klass->path_string_separator = "/";
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klass->path_string_separator = "/";
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klass->signal_object = g_object_new (gst_signal_object_get_type (), NULL);
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klass->signal_object = g_object_new (gst_signal_object_get_type (), NULL);
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/* see the comments at gst_element_dispatch_properties_changed */
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gobject_class->dispatch_properties_changed
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= GST_DEBUG_FUNCPTR (gst_object_dispatch_properties_changed);
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gobject_class->dispose = gst_object_dispose;
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gobject_class->dispose = gst_object_dispose;
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gobject_class->finalize = gst_object_finalize;
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gobject_class->finalize = gst_object_finalize;
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@ -265,6 +279,87 @@ gst_object_finalize (GObject *object)
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parent_class->finalize (object);
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parent_class->finalize (object);
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}
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}
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/* Changing a GObject property of an element will result in "deep_notify"
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* signals being emitted by the element itself, as well as in each parent
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* element. This is so that an application can connect a listener to the
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* top-level bin to catch property-change notifications for all contained
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* elements. */
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static void
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gst_object_dispatch_properties_changed (GObject *object,
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guint n_pspecs,
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GParamSpec **pspecs)
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{
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GstObject *gst_object;
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guint i;
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/* do the standard dispatching */
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G_OBJECT_CLASS (parent_class)->dispatch_properties_changed (object, n_pspecs, pspecs);
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/* now let the parent dispatch those, too */
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gst_object = GST_OBJECT_PARENT (object);
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while (gst_object) {
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/* need own category? */
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for (i = 0; i < n_pspecs; i++) {
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GST_DEBUG (GST_CAT_EVENT, "deep notification from %s to %s (%s)", GST_OBJECT_NAME (object),
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GST_OBJECT_NAME (gst_object), pspecs[i]->name);
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g_signal_emit (gst_object, gst_object_signals[DEEP_NOTIFY], g_quark_from_string (pspecs[i]->name),
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(GstObject *) object, pspecs[i]);
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}
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gst_object = GST_OBJECT_PARENT (gst_object);
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}
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}
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/**
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* gst_object_default_deep_notify:
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* @object: the #GObject that signalled the notify.
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* @orig: a #GstObject that initiated the notify.
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* @pspec: a #GParamSpec of the property.
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* @excluded_props: a set of user-specified properties to exclude.
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*
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* Adds a default deep_notify signal callback to an
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* element. The user data should contain a pointer to an array of
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* strings that should be excluded from the notify.
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||||||
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* The default handler will print the new value of the property
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||||||
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* using g_print.
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*/
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void
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||||||
|
gst_object_default_deep_notify (GObject *object, GstObject *orig,
|
||||||
|
GParamSpec *pspec, gchar **excluded_props)
|
||||||
|
{
|
||||||
|
GValue value = { 0, }; /* the important thing is that value.type = 0 */
|
||||||
|
gchar *str = 0;
|
||||||
|
|
||||||
|
if (pspec->flags & G_PARAM_READABLE) {
|
||||||
|
/* let's not print these out for excluded properties... */
|
||||||
|
while (excluded_props != NULL && *excluded_props != NULL) {
|
||||||
|
if (strcmp (pspec->name, *excluded_props) == 0)
|
||||||
|
return;
|
||||||
|
excluded_props++;
|
||||||
|
}
|
||||||
|
g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
|
||||||
|
g_object_get_property (G_OBJECT (orig), pspec->name, &value);
|
||||||
|
|
||||||
|
if (G_IS_PARAM_SPEC_ENUM (pspec)) {
|
||||||
|
GEnumValue *enum_value;
|
||||||
|
enum_value = g_enum_get_value (G_ENUM_CLASS (g_type_class_ref (pspec->value_type)),
|
||||||
|
g_value_get_enum (&value));
|
||||||
|
|
||||||
|
str = g_strdup_printf ("%s (%d)", enum_value->value_nick,
|
||||||
|
enum_value->value);
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
str = g_strdup_value_contents (&value);
|
||||||
|
}
|
||||||
|
g_print ("%s: %s = %s\n", GST_OBJECT_NAME (orig), pspec->name, str);
|
||||||
|
g_free (str);
|
||||||
|
g_value_unset (&value);
|
||||||
|
} else {
|
||||||
|
g_warning ("Parameter %s not readable in %s.",
|
||||||
|
pspec->name, GST_OBJECT_NAME (orig));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
static void
|
static void
|
||||||
gst_object_set_name_default (GstObject *object)
|
gst_object_set_name_default (GstObject *object)
|
||||||
{
|
{
|
||||||
|
|
|
@ -92,6 +92,7 @@ struct _GstObjectClass {
|
||||||
#ifndef GST_DISABLE_LOADSAVE_REGISTRY
|
#ifndef GST_DISABLE_LOADSAVE_REGISTRY
|
||||||
void (*object_saved) (GstObject *object, xmlNodePtr parent);
|
void (*object_saved) (GstObject *object, xmlNodePtr parent);
|
||||||
#endif
|
#endif
|
||||||
|
void (*deep_notify) (GstObject *object, GstObject *orig, GParamSpec *pspec);
|
||||||
|
|
||||||
/* functions go here */
|
/* functions go here */
|
||||||
void (*destroy) (GstObject *object);
|
void (*destroy) (GstObject *object);
|
||||||
|
@ -132,6 +133,9 @@ void gst_object_set_parent (GstObject *object, GstObject *parent);
|
||||||
GstObject* gst_object_get_parent (GstObject *object);
|
GstObject* gst_object_get_parent (GstObject *object);
|
||||||
void gst_object_unparent (GstObject *object);
|
void gst_object_unparent (GstObject *object);
|
||||||
|
|
||||||
|
void gst_object_default_deep_notify (GObject *object, GstObject *orig,
|
||||||
|
GParamSpec *pspec, gchar **excluded_props);
|
||||||
|
|
||||||
gboolean gst_object_check_uniqueness (GList *list, const gchar *name);
|
gboolean gst_object_check_uniqueness (GList *list, const gchar *name);
|
||||||
|
|
||||||
#ifndef GST_DISABLE_LOADSAVE_REGISTRY
|
#ifndef GST_DISABLE_LOADSAVE_REGISTRY
|
||||||
|
|
Loading…
Reference in a new issue