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GESTrackObject: Listen to property change from gnlobject

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TODO: add/emit the 'changed' signal
This commit is contained in:
Edward Hervey 2009-09-30 16:43:12 +02:00
parent ab8ea4c6a5
commit 1489c583af
1 changed files with 95 additions and 5 deletions
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100
ges/ges-track-object.c
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@ -228,7 +228,6 @@ ges_track_object_set_start_internal (GESTrackObject * object, guint64 start)
gboolean
ges_track_object_set_inpoint_internal (GESTrackObject * object, guint64 inpoint)
{
guint64 dur;
GST_DEBUG ("object:%p, inpoint:%" GST_TIME_FORMAT,
object, GST_TIME_ARGS (inpoint));
@ -238,11 +237,8 @@ ges_track_object_set_inpoint_internal (GESTrackObject * object, guint64 inpoint)
if (G_UNLIKELY (inpoint == object->inpoint))
return FALSE;
/* Calculate new media-start/duration/media-duration */
dur = object->inpoint - inpoint + object->duration;
g_object_set (object->gnlobject, "media-start", inpoint, NULL);
g_object_set (object->gnlobject, "media-start", inpoint, "duration", dur,
"media-duration", dur, NULL);
return TRUE;
}
@ -292,6 +288,88 @@ ges_track_object_set_active (GESTrackObject * object, gboolean active)
return TRUE;
}
/* Callbacks from the GNonLin object */
void
gnlobject_start_cb (GstElement * gnlobject, GParamSpec * arg G_GNUC_UNUSED,
GESTrackObject * obj)
{
guint64 start;
g_object_get (gnlobject, "start", &start, NULL);
GST_DEBUG ("gnlobject start : %" GST_TIME_FORMAT " current : %"
GST_TIME_FORMAT, GST_TIME_ARGS (start), GST_TIME_ARGS (obj->start));
if (start != obj->start) {
obj->start = start;
/* FIXME : emit changed */
}
}
/* Callbacks from the GNonLin object */
void
gnlobject_media_start_cb (GstElement * gnlobject,
GParamSpec * arg G_GNUC_UNUSED, GESTrackObject * obj)
{
guint64 start;
g_object_get (gnlobject, "media-start", &start, NULL);
GST_DEBUG ("gnlobject in-point : %" GST_TIME_FORMAT " current : %"
GST_TIME_FORMAT, GST_TIME_ARGS (start), GST_TIME_ARGS (obj->inpoint));
if (start != obj->inpoint) {
obj->inpoint = start;
/* FIXME : emit changed */
}
}
void
gnlobject_priority_cb (GstElement * gnlobject, GParamSpec * arg G_GNUC_UNUSED,
GESTrackObject * obj)
{
guint64 priority;
g_object_get (gnlobject, "priority", &priority, NULL);
GST_DEBUG ("gnlobject priority : %" GST_TIME_FORMAT " current : %"
GST_TIME_FORMAT, GST_TIME_ARGS (priority), GST_TIME_ARGS (obj->priority));
if (priority != obj->priority) {
obj->priority = priority;
/* FIXME : emit changed */
}
}
void
gnlobject_duration_cb (GstElement * gnlobject, GParamSpec * arg G_GNUC_UNUSED,
GESTrackObject * obj)
{
guint64 duration;
g_object_get (gnlobject, "duration", &duration, NULL);
GST_DEBUG ("gnlobject duration : %" GST_TIME_FORMAT " current : %"
GST_TIME_FORMAT, GST_TIME_ARGS (duration), GST_TIME_ARGS (obj->duration));
if (duration != obj->duration) {
obj->duration = duration;
/* FIXME : emit changed */
}
}
void
gnlobject_active_cb (GstElement * gnlobject, GParamSpec * arg G_GNUC_UNUSED,
GESTrackObject * obj)
{
gboolean active;
g_object_get (gnlobject, "active", &active, NULL);
GST_DEBUG ("gnlobject active : %d current : %d", active, obj->active);
if (active != obj->active) {
obj->active = active;
/* FIXME : emit changed */
}
}
/* default 'create_gnl_object' virtual method implementation */
static gboolean
ges_track_object_create_gnl_object_func (GESTrackObject * object)
@ -330,6 +408,18 @@ ensure_gnl_object (GESTrackObject * object)
return FALSE;
}
/* Connect to property notifications */
g_signal_connect (G_OBJECT (object->gnlobject), "notify::start",
G_CALLBACK (gnlobject_start_cb), object);
g_signal_connect (G_OBJECT (object->gnlobject), "notify::media-start",
G_CALLBACK (gnlobject_media_start_cb), object);
g_signal_connect (G_OBJECT (object->gnlobject), "notify::duration",
G_CALLBACK (gnlobject_duration_cb), object);
g_signal_connect (G_OBJECT (object->gnlobject), "notify::priority",
G_CALLBACK (gnlobject_priority_cb), object);
g_signal_connect (G_OBJECT (object->gnlobject), "notify::active",
G_CALLBACK (gnlobject_active_cb), object);
/* 2. Fill in the GnlObject */
if (res) {
GST_DEBUG ("Got a valid GnlObject, now filling it in");