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ges/ges-track-transition.c: factor out code which produces video bin into a

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seprate routine
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Brandon Lewis 2010-05-28 02:31:42 +02:00 committed by Edward Hervey
parent 9de8dc2726
commit 280aef4f6e
1 changed files with 76 additions and 70 deletions
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146
ges/ges-track-transition.c
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@ -136,6 +136,80 @@ link_element_to_mixer_with_smpte (GstBin * bin, GstElement * element,
return G_OBJECT (smptealpha);
}
static GstElement *
create_video_bin (GESTrackTransition * self)
{
GstElement *topbin = gst_bin_new ("transition-bin");
GstElement *iconva = gst_element_factory_make ("ffmpegcolorspace",
"tr-csp-a");
GstElement *iconvb = gst_element_factory_make ("ffmpegcolorspace",
"tr-csp-b");
GstElement *oconv = gst_element_factory_make ("ffmpegcolorspace",
"tr-csp-output");
gst_bin_add_many (GST_BIN (topbin), iconva, iconvb, oconv, NULL);
GObject *target = NULL;
gchar *propname = NULL;
GstElement *mixer = NULL;
mixer = gst_element_factory_make ("videomixer", NULL);
g_object_set (G_OBJECT (mixer), "background", 1, NULL);
gst_bin_add (GST_BIN (topbin), mixer);
if (self->type) {
link_element_to_mixer_with_smpte (GST_BIN (topbin), iconva, mixer,
self->type);
target = link_element_to_mixer_with_smpte (GST_BIN (topbin), iconvb,
mixer, self->type);
propname = "position";
self->start_value = 1.0;
self->end_value = 0.0;
} else {
link_element_to_mixer (iconva, mixer);
target = link_element_to_mixer (iconvb, mixer);
propname = "alpha";
self->start_value = 0.0;
self->end_value = 1.0;
}
gst_element_link (mixer, oconv);
GstPad *sinka_target = gst_element_get_static_pad (iconva, "sink");
GstPad *sinkb_target = gst_element_get_static_pad (iconvb, "sink");
GstPad *src_target = gst_element_get_static_pad (oconv, "src");
GstPad *sinka = gst_ghost_pad_new ("sinka", sinka_target);
GstPad *sinkb = gst_ghost_pad_new ("sinkb", sinkb_target);
GstPad *src = gst_ghost_pad_new ("src", src_target);
gst_element_add_pad (topbin, src);
gst_element_add_pad (topbin, sinka);
gst_element_add_pad (topbin, sinkb);
/* set up interpolation */
g_object_set (target, propname, (gfloat) 0.0, NULL);
GstController *controller;
controller = gst_object_control_properties (target, propname, NULL);
GstInterpolationControlSource *control_source;
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);
self->controller = controller;
self->control_source = control_source;
GST_LOG ("controller created, updating");
ges_track_transition_update_controller (self,
((GESTrackObject *) self)->gnlobject);
return topbin;
}
static gboolean
ges_track_transition_create_gnl_object (GESTrackObject * object)
{
@ -152,82 +226,14 @@ ges_track_transition_create_gnl_object (GESTrackObject * object)
G_CALLBACK (gnlobject_duration_cb), object);
if ((object->track->type) == GES_TRACK_TYPE_VIDEO) {
GstElement *topbin = gst_bin_new ("transition-bin");
GstElement *iconva = gst_element_factory_make ("ffmpegcolorspace",
"tr-csp-a");
GstElement *iconvb = gst_element_factory_make ("ffmpegcolorspace",
"tr-csp-b");
GstElement *oconv = gst_element_factory_make ("ffmpegcolorspace",
"tr-csp-output");
gst_bin_add_many (GST_BIN (topbin), iconva, iconvb, oconv, NULL);
GObject *target = NULL;
gchar *propname = NULL;
GstElement *mixer = NULL;
mixer = gst_element_factory_make ("videomixer", NULL);
g_object_set (G_OBJECT (mixer), "background", 1, NULL);
gst_bin_add (GST_BIN (topbin), mixer);
if (self->type) {
link_element_to_mixer_with_smpte (GST_BIN (topbin), iconva, mixer,
self->type);
target = link_element_to_mixer_with_smpte (GST_BIN (topbin), iconvb,
mixer, self->type);
propname = "position";
self->start_value = 1.0;
self->end_value = 0.0;
} else {
link_element_to_mixer (iconva, mixer);
target = link_element_to_mixer (iconvb, mixer);
propname = "alpha";
self->start_value = 0.0;
self->end_value = 1.0;
}
gst_element_link (mixer, oconv);
GstPad *sinka_target = gst_element_get_static_pad (iconva, "sink");
GstPad *sinkb_target = gst_element_get_static_pad (iconvb, "sink");
GstPad *src_target = gst_element_get_static_pad (oconv, "src");
GstPad *sinka = gst_ghost_pad_new ("sinka", sinka_target);
GstPad *sinkb = gst_ghost_pad_new ("sinkb", sinkb_target);
GstPad *src = gst_ghost_pad_new ("src", src_target);
gst_element_add_pad (topbin, src);
gst_element_add_pad (topbin, sinka);
gst_element_add_pad (topbin, sinkb);
gst_bin_add (GST_BIN (object->gnlobject), topbin);
/* set up interpolation */
g_object_set (target, propname, (gfloat) 0.0, NULL);
GstController *controller;
controller = gst_object_control_properties (target, propname, NULL);
GstInterpolationControlSource *control_source;
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);
self->controller = controller;
self->control_source = control_source;
GST_LOG ("controller created, updating");
ges_track_transition_update_controller (self, object->gnlobject);
gst_bin_add (GST_BIN (object->gnlobject), create_video_bin (self));
return TRUE;
}
return FALSE;
}
static void
ges_track_transition_class_init (GESTrackTransitionClass * klass)
{