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timeline-element: Enhance debug statement and documentation

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+ Accept NULL as a parent
This commit is contained in:
Thibault Saunier 2013-02-28 22:22:35 -03:00
parent 0cb8c671ea
commit 25bcb023ca
1 changed files with 21 additions and 8 deletions
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29
ges/ges-timeline-element.c
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@ -16,9 +16,20 @@
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* SECTION:ges-timeline-element
* @short_description: Base Class for all elements that will be in a way or
* another inside a GESTimeline.
*
* The GESTimelineElement base class implements the notion of timing as well
* as priority. A GESTimelineElement can have a parent object which will be
* responsible for controlling its timing properties.
*/
#include "ges-timeline-element.h"
#include "ges-extractable.h"
#include "ges-meta-container.h"
#include "ges-internal.h"
static void
extractable_set_asset (GESExtractable * extractable, GESAsset * asset)
@ -156,7 +167,7 @@ ges_timeline_element_class_init (GESTimelineElementClass * klass)
/**
* GESTimelineElement:timeline:
*
* The timeline in which the object is in
* The timeline in which @element is
*/
properties[PROP_TIMELINE] =
g_param_spec_object ("timeline", "Timeline",
@ -196,12 +207,10 @@ ges_timeline_element_class_init (GESTimelineElementClass * klass)
* GESTimelineElement:max-duration:
*
* The maximum duration (in nanoseconds) of the #GESTimelineElement.
*
* Since: 0.10.XX
*/
properties[PROP_MAX_DURATION] =
g_param_spec_uint64 ("max-duration", "Maximum duration",
"The maximum duration of the object", 0, G_MAXUINT64, G_MAXUINT64,
"The maximum duration of the object", 0, G_MAXUINT64, GST_CLOCK_TIME_NONE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
/**
@ -249,7 +258,8 @@ 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 (GES_IS_TIMELINE_ELEMENT (parent), 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 (ref and sink)");
@ -445,13 +455,13 @@ ges_timeline_element_set_max_duration (GESTimelineElement * 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 (maxduration),
GST_TIME_ARGS (GES_TIMELINE_ELEMENT_MAX_DURATION (self)));
" 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;
@ -582,6 +592,9 @@ ges_timeline_element_set_priority (GESTimelineElement * self, guint32 priority)
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;