mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-10-02 08:42:32 +00:00
Code Issues 1 Projects Releases Wiki Activity

track-video-transition: Reuse interpollation setting functions when possible

Browse source
This commit is contained in:
Thibault Saunier 2012-05-02 18:38:42 -04:00
parent b891eb042c
commit 959bc5e0cb
1 changed files with 36 additions and 53 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

89
ges/ges-track-video-transition.c
View file

@ -228,6 +228,30 @@ create_mixer (GstElement * topbin)
return (mixer);
}
static void
set_interpolation (GObject * element, GESTrackVideoTransitionPrivate * priv,
const gchar * propname)
{
g_object_set (element, propname, (gfloat) 0.0, NULL);
if (priv->controller)
g_object_unref (priv->controller);
priv->controller =
gst_object_control_properties (G_OBJECT (element), propname, NULL);
if (priv->control_source) {
gst_interpolation_control_source_unset_all (priv->control_source);
gst_object_unref (priv->control_source);
}
priv->control_source = gst_interpolation_control_source_new ();
gst_controller_set_control_source (priv->controller,
propname, GST_CONTROL_SOURCE (priv->control_source));
gst_interpolation_control_source_set_interpolation_mode
(priv->control_source, GST_INTERPOLATE_LINEAR);
}
static GstElement *
ges_track_video_transition_create_element (GESTrackObject * object)
{
@ -237,8 +261,6 @@ ges_track_video_transition_create_element (GESTrackObject * object)
GstElement *mixer = NULL;
GstPad *sinka_target, *sinkb_target, *src_target, *sinka, *sinkb, *src,
*srca_pad;
GstController *controller;
GstInterpolationControlSource *control_source;
GESTrackVideoTransition *self;
GESTrackVideoTransitionPrivate *priv;
@ -314,18 +336,8 @@ ges_track_video_transition_create_element (GESTrackObject * object)
/* set up interpolation */
g_object_set (target, propname, (gfloat) 0.0, NULL);
set_interpolation (target, priv, propname);
controller = gst_object_control_properties (target, propname, NULL);
control_source = gst_interpolation_control_source_new ();
gst_controller_set_control_source (controller,
propname, GST_CONTROL_SOURCE (control_source));
gst_interpolation_control_source_set_interpolation_mode (control_source,
GST_INTERPOLATE_LINEAR);
priv->controller = controller;
priv->control_source = control_source;
priv->topbin = topbin;
priv->type = priv->pending_type;
@ -386,48 +398,13 @@ replace_mixer (GESTrackVideoTransitionPrivate * priv)
}
static void
set_interpolation (GObject * element, GESTrackVideoTransitionPrivate * priv,
gchar * propname)
{
GValue start_val = { 0, };
GValue end_val = { 0, };
g_value_init (&start_val, G_TYPE_DOUBLE);
g_value_init (&end_val, G_TYPE_DOUBLE);
g_value_set_double (&start_val, priv->start_value);
g_value_set_double (&end_val, priv->end_value);
g_object_set (element, propname, (gfloat) 0.0, NULL);
if (priv->controller)
g_object_unref (priv->controller);
priv->controller =
gst_object_control_properties (G_OBJECT (element), propname, NULL);
gst_interpolation_control_source_unset_all (priv->control_source);
if (priv->control_source)
gst_object_unref (priv->control_source);
priv->control_source = gst_interpolation_control_source_new ();
gst_controller_set_control_source (priv->controller,
propname, GST_CONTROL_SOURCE (priv->control_source));
gst_interpolation_control_source_set_interpolation_mode
(priv->control_source, GST_INTERPOLATE_LINEAR);
gst_interpolation_control_source_set (priv->control_source, 0, &start_val);
gst_interpolation_control_source_set (priv->control_source, priv->dur,
&end_val);
}
static void
switch_to_smpte_cb (GstPad * sink, gboolean blocked,
GESTrackVideoTransitionPrivate * priv)
GESTrackVideoTransition * transition)
{
GstElement *smptealpha = gst_element_factory_make ("smptealpha", NULL);
GstElement *smptealphab = gst_element_factory_make ("smptealpha", NULL);
GESTrackVideoTransitionPrivate *priv = transition->priv;
if (priv->pending_type == GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE)
goto beach;
@ -448,6 +425,9 @@ switch_to_smpte_cb (GstPad * sink, gboolean blocked,
priv->end_value = 0.0;
set_interpolation (G_OBJECT (smptealphab), priv, (gchar *) "position");
ges_track_video_transition_duration_changed (GES_TRACK_OBJECT (transition),
priv->dur);
priv->sinka = (GstPad *) link_element_to_mixer (smptealpha, priv->mixer);
priv->sinkb = (GstPad *) link_element_to_mixer (smptealphab, priv->mixer);
@ -498,10 +478,11 @@ remove_smpte_from_bin (GESTrackVideoTransitionPrivate * priv, GstPad * sink)
static void
switch_to_crossfade_cb (GstPad * sink, gboolean blocked,
GESTrackVideoTransitionPrivate * priv)
GESTrackVideoTransition * transition)
{
GstElement *peera;
GstElement *peerb;
GESTrackVideoTransitionPrivate *priv = transition->priv;
GST_INFO ("Bin %p switching from smpte to crossfade", priv->topbin);
@ -521,6 +502,8 @@ switch_to_crossfade_cb (GstPad * sink, gboolean blocked,
priv->start_value = 0.0;
priv->end_value = 1.0;
set_interpolation (G_OBJECT (priv->sinkb), priv, (gchar *) "alpha");
ges_track_video_transition_duration_changed (GES_TRACK_OBJECT (transition),
priv->dur);
priv->smpte = NULL;
@ -689,7 +672,7 @@ ges_track_video_transition_set_transition_type (GESTrackVideoTransition * self,
return FALSE;
priv->smpte = NULL;
gst_pad_set_blocked_async (gst_element_get_static_pad (priv->topbin,
"sinka"), TRUE, (GstPadBlockCallback) switch_to_smpte_cb, priv);
"sinka"), TRUE, (GstPadBlockCallback) switch_to_smpte_cb, self);
} else {
if (!priv->topbin)
return FALSE;
@ -697,7 +680,7 @@ ges_track_video_transition_set_transition_type (GESTrackVideoTransition * self,
priv->end_value = 0.0;
gst_pad_set_blocked_async (gst_element_get_static_pad (priv->topbin,
"sinka"), TRUE, (GstPadBlockCallback) switch_to_crossfade_cb,
priv);
self);
}
return TRUE;
}