/**
* ges_timeline_element_set_parent:
* @self: a #GESTimelineElement
* @parent: new parent of self
*
* Sets the parent of @self to @parent. The object's reference count will
* be incremented, and any floating reference will be removed (see gst_object_ref_sink()).
*
* Returns: %TRUE if @parent could be set or %FALSE when @self
* already had a parent or @self and @parent are the same.
*/
gboolean
ges_timeline_element_set_parent (GESTimelineElement * self,
GESTimelineElement * parent)
{
g_return_val_if_fail (GES_IS_TIMELINE_ELEMENT (self), FALSE);
g_return_val_if_fail (parent == NULL
|| GES_IS_TIMELINE_ELEMENT (parent), FALSE);
g_return_val_if_fail (self != parent, FALSE);
GST_DEBUG_OBJECT (self, "set parent to %" GST_PTR_FORMAT, parent);
if (self->parent != NULL && parent != NULL)
goto had_parent;
if (GES_TIMELINE_ELEMENT_GET_CLASS (self)->set_parent) {
if (!GES_TIMELINE_ELEMENT_GET_CLASS (self)->set_parent (self, parent))
return FALSE;
}
self->parent = parent;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_PARENT]);
return TRUE;
/* ERROR handling */
had_parent:
{
GST_WARNING_OBJECT (self, "set parent failed, object already had a parent");
return FALSE;
}
}
/**
* ges_timeline_element_set_duration:
* @self: a #GESTimelineElement
* @duration: the duration in #GstClockTime
*
* Set the duration of the object
*
* Note that if the timeline snap-distance property of the timeline containing
* @self is set, @self will properly snap to its neighboors.
*/
void
ges_timeline_element_set_duration (GESTimelineElement * self,
GstClockTime duration)
{
GESTimelineElementClass *klass;
g_return_if_fail (GES_IS_TIMELINE_ELEMENT (self));
klass = GES_TIMELINE_ELEMENT_GET_CLASS (self);
GST_DEBUG_OBJECT (self, "current duration: %" GST_TIME_FORMAT
" new duration: %" GST_TIME_FORMAT,
GST_TIME_ARGS (GES_TIMELINE_ELEMENT_DURATION (self)),
GST_TIME_ARGS (duration));
if (klass->set_duration) {
if (klass->set_duration (self, duration)) {
self->duration = duration;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_DURATION]);
}
return;
}
GST_WARNING_OBJECT (self, "No set_duration virtual method implementation"
" on class %s. Can not set duration %" GST_TIME_FORMAT,
G_OBJECT_CLASS_NAME (klass), GST_TIME_ARGS (duration));
}
/**
* ges_timeline_element_set_inpoint:
* @self: a #GESTimelineElement
* @inpoint: the in-point in #GstClockTime
*
* Set the in-point, that is the moment at which the @self will start
* outputting data from its contents.
*/
void
ges_timeline_element_set_inpoint (GESTimelineElement * self,
GstClockTime inpoint)
{
GESTimelineElementClass *klass;
g_return_if_fail (GES_IS_TIMELINE_ELEMENT (self));
GST_DEBUG_OBJECT (self, "current inpoint: %" GST_TIME_FORMAT
" new inpoint: %" GST_TIME_FORMAT, GST_TIME_ARGS (inpoint),
GST_TIME_ARGS (GES_TIMELINE_ELEMENT_INPOINT (self)));
klass = GES_TIMELINE_ELEMENT_GET_CLASS (self);
if (klass->set_inpoint) {
if (klass->set_inpoint (self, inpoint)) {
self->inpoint = inpoint;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_INPOINT]);
}
return;
}
GST_WARNING_OBJECT (self, "No set_inpoint virtual method implementation"
" on class %s. Can not set inpoint %" GST_TIME_FORMAT,
G_OBJECT_CLASS_NAME (klass), GST_TIME_ARGS (inpoint));
}
static gboolean
_lookup_child (GESTrackElement * object,
const gchar * prop_name, GstElement ** element, GParamSpec ** pspec)
{
return
GES_TIMELINE_ELEMENT_GET_CLASS (object)->lookup_child
(GES_TIMELINE_ELEMENT (object), prop_name, (GObject **) element, pspec);
}
/**
* ges_timeline_element_copy:
* @self: The #GESTimelineElement to copy
* @deep: whether we want to create the elements @self contains or not
*
* Copies @self
*
* Returns: (transfer floating): The newly create #GESTimelineElement, copied from @self
*/
GESTimelineElement *
ges_timeline_element_copy (GESTimelineElement * self, gboolean deep)
{
GESAsset *asset;
GParameter *params;
GParamSpec **specs;
GESTimelineElementClass *klass;
guint n, n_specs, n_params;
GESTimelineElement *ret = NULL;
g_return_val_if_fail (GES_IS_TIMELINE_ELEMENT (self), FALSE);
klass = GES_TIMELINE_ELEMENT_GET_CLASS (self);
specs = g_object_class_list_properties (G_OBJECT_GET_CLASS (self), &n_specs);
params = g_new0 (GParameter, n_specs);
n_params = 0;
for (n = 0; n < n_specs; ++n) {
/* We do not want the timeline or the name to be copied */
if (g_strcmp0 (specs[n]->name, "parent") &&
g_strcmp0 (specs[n]->name, "timeline") &&
g_strcmp0 (specs[n]->name, "name") &&
(specs[n]->flags & G_PARAM_READWRITE) == G_PARAM_READWRITE) {
params[n_params].name = g_intern_string (specs[n]->name);
g_value_init (¶ms[n_params].value, specs[n]->value_type);
g_object_get_property (G_OBJECT (self), specs[n]->name,
¶ms[n_params].value);
++n_params;
}
}
ret = g_object_newv (G_OBJECT_TYPE (self), n_params, params);
g_free (specs);
g_free (params);
asset = ges_extractable_get_asset (GES_EXTRACTABLE (self));
if (asset)
ges_extractable_set_asset (GES_EXTRACTABLE (ret), asset);
if (deep) {
if (klass->deep_copy)
klass->deep_copy (self, ret);
else
GST_WARNING_OBJECT (self, "No deep_copy virtual method implementation"
" on class %s. Can not finish the copy", G_OBJECT_CLASS_NAME (klass));
}
return ret;
}
/**
* ges_timeline_element_trim:
* @self: The #GESTimelineElement to trim.
* @start: The new start of @self in trim mode, will adapt the inpoint
* of @self accordingly
*
* Edits @self in trim mode. It allows you to modify the
* inpoint and start of @self.
* This will not change the overall timeline duration.
*
* Note that to trim the end of an self you can just set its duration. The same way
* as this method, it will take into account the snapping-distance property of the
* timeline in which @self is.
*
* Returns: %TRUE if the self as been trimmed properly, %FALSE if an error
* occured
*/
gboolean
ges_timeline_element_trim (GESTimelineElement * self, GstClockTime start)
{
GESTimelineElementClass *klass;
g_return_val_if_fail (GES_IS_TIMELINE_ELEMENT (self), FALSE);
klass = GES_TIMELINE_ELEMENT_GET_CLASS (self);
if (klass->trim)
return klass->trim (self, start);
GST_WARNING_OBJECT (self, "No ripple virtual method implementation"
" on class %s. Can not trim to %" GST_TIME_FORMAT,
G_OBJECT_CLASS_NAME (klass), GST_TIME_ARGS (start));
return FALSE;
}
/**
* ges_timeline_element_set_start:
* @self: a #GESTimelineElement
* @start: the position in #GstClockTime
*
* Set the position of the object in its containing layer
*
* Note that if the timeline snap-distance property of the timeline containing
* @self is set, @self will properly snap to its neighboors.
*/
void
ges_timeline_element_set_start (GESTimelineElement * self, GstClockTime start)
{
GESTimelineElementClass *klass;
GESTimelineElement *toplevel_container;
g_return_if_fail (GES_IS_TIMELINE_ELEMENT (self));
klass = GES_TIMELINE_ELEMENT_GET_CLASS (self);
GST_DEBUG_OBJECT (self, "current start: %" GST_TIME_FORMAT
" new start: %" GST_TIME_FORMAT,
GST_TIME_ARGS (GES_TIMELINE_ELEMENT_START (self)), GST_TIME_ARGS (start));
toplevel_container = ges_timeline_element_get_toplevel_parent (self);
if (((gint64) (_START (toplevel_container) + start - _START (self))) < 0) {
GST_INFO_OBJECT (self, "Can not move the object as it would imply its"
"container to have a negative start value");
gst_object_unref (toplevel_container);
return;
}
gst_object_unref (toplevel_container);
if (klass->set_start) {
if (klass->set_start (self, start)) {
self->start = start;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_START]);
}
GST_DEBUG_OBJECT (self, "New start: %" GST_TIME_FORMAT,
GST_TIME_ARGS (GES_TIMELINE_ELEMENT_START (self)));
return;
}
GST_WARNING_OBJECT (self, "No set_start virtual method implementation"
" on class %s. Can not set start %" GST_TIME_FORMAT,
G_OBJECT_CLASS_NAME (klass), GST_TIME_ARGS (start));
}
/**
* ges_timeline_element_set_max_duration:
* @self: a #GESTimelineElement
* @maxduration: the maximum duration in #GstClockTime
*
* Set the maximun duration of the object
*/
void
ges_timeline_element_set_max_duration (GESTimelineElement * self,
GstClockTime maxduration)
{
GESTimelineElementClass *klass;
g_return_if_fail (GES_IS_TIMELINE_ELEMENT (self));
klass = GES_TIMELINE_ELEMENT_GET_CLASS (self);
GST_DEBUG_OBJECT (self, "current duration: %" GST_TIME_FORMAT
" new duration: %" GST_TIME_FORMAT,
GST_TIME_ARGS (GES_TIMELINE_ELEMENT_MAX_DURATION (self)),
GST_TIME_ARGS (maxduration));
if (klass->set_max_duration) {
if (klass->set_max_duration (self, maxduration) == FALSE)
return;
}
self->maxduration = maxduration;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MAX_DURATION]);
}
/**
* ges_timeline_element_set_priority:
* @self: a #GESTimelineElement
* @priority: the priority
*
* Sets the priority of the object within the containing layer
*/
void
ges_timeline_element_set_priority (GESTimelineElement * self, guint32 priority)
{
GESTimelineElementClass *klass;
g_return_if_fail (GES_IS_TIMELINE_ELEMENT (self));
klass = GES_TIMELINE_ELEMENT_GET_CLASS (self);
GST_DEBUG_OBJECT (self, "current priority: %d new priority: %d",
self->priority, priority);
if (klass->set_priority) {
if (klass->set_priority (self, priority)) {
self->priority = priority;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_PRIORITY]);
}
return;
}
GST_WARNING_OBJECT (self, "No set_priority virtual method implementation"
" on class %s. Can not set priority %d", G_OBJECT_CLASS_NAME (klass),
priority);
}
