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track-video-transition: Expose the transition type as a GObject property

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API: GESTrackVideoTransition::transition-type property
This commit is contained in:
Thibault Saunier 2012-05-02 23:43:50 -04:00
parent fa7e9a4d39
commit 26aebe2d3d
1 changed files with 74 additions and 37 deletions
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111
ges/ges-track-video-transition.c
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@ -29,6 +29,9 @@
G_DEFINE_TYPE (GESTrackVideoTransition, ges_track_video_transition,
GES_TYPE_TRACK_TRANSITION);
static inline gboolean
ges_track_video_transition_set_transition_type_internal (GESTrackVideoTransition
* self, GESVideoStandardTransitionType type);
struct _GESTrackVideoTransitionPrivate
{
GESVideoStandardTransitionType type;
@ -62,6 +65,7 @@ enum
{
PROP_0,
PROP_BORDER,
PROP_TRANSITION_TYPE,
PROP_INVERT,
PROP_LAST
};
@ -121,6 +125,19 @@ ges_track_video_transition_class_init (GESTrackVideoTransitionClass * klass)
g_object_class_install_property (object_class, PROP_BORDER,
properties[PROP_BORDER]);
/**
* GESTrackVideoTransition:type
*
* The #GESVideoStandardTransitionType currently applied on the object
*
*/
properties[PROP_TRANSITION_TYPE] =
g_param_spec_enum ("transition-type", "Transition type",
"The type of the transition", GES_VIDEO_STANDARD_TRANSITION_TYPE_TYPE,
GES_VIDEO_STANDARD_TRANSITION_TYPE_NONE, G_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_TRANSITION_TYPE,
properties[PROP_TRANSITION_TYPE]);
/**
* GESTrackVideoTransition:invert
*
@ -213,6 +230,10 @@ ges_track_video_transition_get_property (GObject * object,
case PROP_BORDER:
g_value_set_uint (value, ges_track_video_transition_get_border (tr));
break;
case PROP_TRANSITION_TYPE:
g_value_set_enum (value,
ges_track_video_transition_get_transition_type (tr));
break;
case PROP_INVERT:
g_value_set_boolean (value, ges_track_video_transition_is_inverted (tr));
break;
@ -231,6 +252,10 @@ ges_track_video_transition_set_property (GObject * object,
case PROP_BORDER:
ges_track_video_transition_set_border (tr, g_value_get_uint (value));
break;
case PROP_TRANSITION_TYPE:
ges_track_video_transition_set_transition_type_internal (tr,
g_value_get_enum (value));
break;
case PROP_INVERT:
ges_track_video_transition_set_inverted (tr, g_value_get_boolean (value));
break;
@ -642,6 +667,51 @@ ges_track_video_transition_duration_changed (GESTrackObject * object,
GST_LOG ("done updating controller");
}
static inline gboolean
ges_track_video_transition_set_transition_type_internal (GESTrackVideoTransition
* self, GESVideoStandardTransitionType type)
{
GESTrackVideoTransitionPrivate *priv = self->priv;
GST_LOG ("%p %d => %d", self, priv->type, type);
if (type == priv->type && !priv->pending_type) {
GST_INFO ("This type is already set on this transition\n");
return TRUE;
}
if (type == priv->pending_type) {
GST_INFO ("This type is already pending for this transition\n");
return TRUE;
}
if (priv->type &&
((priv->type != type) || (priv->type != priv->pending_type)) &&
((type == GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE) ||
(priv->type == GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE))) {
priv->pending_type = type;
if (type != GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE) {
if (!priv->topbin)
return FALSE;
priv->smpte = NULL;
gst_pad_set_blocked_async (gst_element_get_static_pad (priv->topbin,
"sinka"), TRUE, (GstPadBlockCallback) switch_to_smpte_cb, self);
} else {
if (!priv->topbin)
return FALSE;
priv->start_value = 1.0;
priv->end_value = 0.0;
gst_pad_set_blocked_async (gst_element_get_static_pad (priv->topbin,
"sinka"), TRUE, (GstPadBlockCallback) switch_to_crossfade_cb,
self);
}
return TRUE;
}
priv->pending_type = type;
if (priv->smpte && (type != GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE)) {
g_object_set (priv->smpte, "type", (gint) type, NULL);
}
return TRUE;
}
/**
* ges_track_video_transition_set_border:
* @self: The #GESTrackVideoTransition to set the border to
@ -748,45 +818,12 @@ gboolean
ges_track_video_transition_set_transition_type (GESTrackVideoTransition * self,
GESVideoStandardTransitionType type)
{
GESTrackVideoTransitionPrivate *priv = self->priv;
gboolean ret =
ges_track_video_transition_set_transition_type_internal (self, type);
GST_LOG ("%p %d => %d", self, priv->type, type);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_TRANSITION_TYPE]);
if (type == priv->type && !priv->pending_type) {
GST_INFO ("This type is already set on this transition\n");
return TRUE;
}
if (type == priv->pending_type) {
GST_INFO ("This type is already pending for this transition\n");
return TRUE;
}
if (priv->type &&
((priv->type != type) || (priv->type != priv->pending_type)) &&
((type == GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE) ||
(priv->type == GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE))) {
priv->pending_type = type;
if (type != GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE) {
if (!priv->topbin)
return FALSE;
priv->smpte = NULL;
gst_pad_set_blocked_async (gst_element_get_static_pad (priv->topbin,
"sinka"), TRUE, (GstPadBlockCallback) switch_to_smpte_cb, self);
} else {
if (!priv->topbin)
return FALSE;
priv->start_value = 1.0;
priv->end_value = 0.0;
gst_pad_set_blocked_async (gst_element_get_static_pad (priv->topbin,
"sinka"), TRUE, (GstPadBlockCallback) switch_to_crossfade_cb,
self);
}
return TRUE;
}
priv->pending_type = type;
if (priv->smpte && (type != GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE)) {
g_object_set (priv->smpte, "type", (gint) type, NULL);
}
return TRUE;
return ret;
}
/**