mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 01:00:37 +00:00
ges/ges-track-transition.c: factor out code which produces video bin into a
seprate routine
This commit is contained in:
Brandon Lewis
Edward Hervey
parent
9de8dc2726
commit
280aef4f6e
1 changed files with 76 additions and 70 deletions
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@ -136,6 +136,80 @@ link_element_to_mixer_with_smpte (GstBin * bin, GstElement * element,
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return G_OBJECT (smptealpha);
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return G_OBJECT (smptealpha);
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}
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}
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static GstElement *
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create_video_bin (GESTrackTransition * self)
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{
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GstElement *topbin = gst_bin_new ("transition-bin");
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GstElement *iconva = gst_element_factory_make ("ffmpegcolorspace",
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"tr-csp-a");
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GstElement *iconvb = gst_element_factory_make ("ffmpegcolorspace",
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"tr-csp-b");
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GstElement *oconv = gst_element_factory_make ("ffmpegcolorspace",
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"tr-csp-output");
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gst_bin_add_many (GST_BIN (topbin), iconva, iconvb, oconv, NULL);
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GObject *target = NULL;
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gchar *propname = NULL;
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GstElement *mixer = NULL;
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mixer = gst_element_factory_make ("videomixer", NULL);
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g_object_set (G_OBJECT (mixer), "background", 1, NULL);
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gst_bin_add (GST_BIN (topbin), mixer);
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if (self->type) {
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link_element_to_mixer_with_smpte (GST_BIN (topbin), iconva, mixer,
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self->type);
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target = link_element_to_mixer_with_smpte (GST_BIN (topbin), iconvb,
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mixer, self->type);
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propname = "position";
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self->start_value = 1.0;
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self->end_value = 0.0;
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} else {
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link_element_to_mixer (iconva, mixer);
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target = link_element_to_mixer (iconvb, mixer);
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propname = "alpha";
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self->start_value = 0.0;
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self->end_value = 1.0;
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}
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gst_element_link (mixer, oconv);
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GstPad *sinka_target = gst_element_get_static_pad (iconva, "sink");
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GstPad *sinkb_target = gst_element_get_static_pad (iconvb, "sink");
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GstPad *src_target = gst_element_get_static_pad (oconv, "src");
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GstPad *sinka = gst_ghost_pad_new ("sinka", sinka_target);
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GstPad *sinkb = gst_ghost_pad_new ("sinkb", sinkb_target);
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GstPad *src = gst_ghost_pad_new ("src", src_target);
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gst_element_add_pad (topbin, src);
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gst_element_add_pad (topbin, sinka);
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gst_element_add_pad (topbin, sinkb);
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/* set up interpolation */
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g_object_set (target, propname, (gfloat) 0.0, NULL);
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GstController *controller;
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controller = gst_object_control_properties (target, propname, NULL);
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GstInterpolationControlSource *control_source;
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control_source = gst_interpolation_control_source_new ();
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gst_controller_set_control_source (controller,
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propname, GST_CONTROL_SOURCE (control_source));
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gst_interpolation_control_source_set_interpolation_mode (control_source,
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GST_INTERPOLATE_LINEAR);
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self->controller = controller;
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self->control_source = control_source;
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GST_LOG ("controller created, updating");
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ges_track_transition_update_controller (self,
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((GESTrackObject *) self)->gnlobject);
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return topbin;
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}
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static gboolean
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static gboolean
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ges_track_transition_create_gnl_object (GESTrackObject * object)
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ges_track_transition_create_gnl_object (GESTrackObject * object)
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{
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{
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@ -152,82 +226,14 @@ ges_track_transition_create_gnl_object (GESTrackObject * object)
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G_CALLBACK (gnlobject_duration_cb), object);
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G_CALLBACK (gnlobject_duration_cb), object);
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if ((object->track->type) == GES_TRACK_TYPE_VIDEO) {
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if ((object->track->type) == GES_TRACK_TYPE_VIDEO) {
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GstElement *topbin = gst_bin_new ("transition-bin");
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gst_bin_add (GST_BIN (object->gnlobject), create_video_bin (self));
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GstElement *iconva = gst_element_factory_make ("ffmpegcolorspace",
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"tr-csp-a");
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GstElement *iconvb = gst_element_factory_make ("ffmpegcolorspace",
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"tr-csp-b");
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GstElement *oconv = gst_element_factory_make ("ffmpegcolorspace",
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"tr-csp-output");
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gst_bin_add_many (GST_BIN (topbin), iconva, iconvb, oconv, NULL);
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GObject *target = NULL;
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gchar *propname = NULL;
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GstElement *mixer = NULL;
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mixer = gst_element_factory_make ("videomixer", NULL);
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g_object_set (G_OBJECT (mixer), "background", 1, NULL);
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gst_bin_add (GST_BIN (topbin), mixer);
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if (self->type) {
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link_element_to_mixer_with_smpte (GST_BIN (topbin), iconva, mixer,
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self->type);
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target = link_element_to_mixer_with_smpte (GST_BIN (topbin), iconvb,
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mixer, self->type);
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propname = "position";
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self->start_value = 1.0;
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self->end_value = 0.0;
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} else {
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link_element_to_mixer (iconva, mixer);
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target = link_element_to_mixer (iconvb, mixer);
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propname = "alpha";
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self->start_value = 0.0;
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self->end_value = 1.0;
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}
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gst_element_link (mixer, oconv);
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GstPad *sinka_target = gst_element_get_static_pad (iconva, "sink");
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GstPad *sinkb_target = gst_element_get_static_pad (iconvb, "sink");
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GstPad *src_target = gst_element_get_static_pad (oconv, "src");
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GstPad *sinka = gst_ghost_pad_new ("sinka", sinka_target);
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GstPad *sinkb = gst_ghost_pad_new ("sinkb", sinkb_target);
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GstPad *src = gst_ghost_pad_new ("src", src_target);
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gst_element_add_pad (topbin, src);
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gst_element_add_pad (topbin, sinka);
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gst_element_add_pad (topbin, sinkb);
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gst_bin_add (GST_BIN (object->gnlobject), topbin);
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/* set up interpolation */
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g_object_set (target, propname, (gfloat) 0.0, NULL);
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GstController *controller;
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controller = gst_object_control_properties (target, propname, NULL);
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GstInterpolationControlSource *control_source;
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control_source = gst_interpolation_control_source_new ();
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gst_controller_set_control_source (controller,
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propname, GST_CONTROL_SOURCE (control_source));
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gst_interpolation_control_source_set_interpolation_mode (control_source,
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GST_INTERPOLATE_LINEAR);
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self->controller = controller;
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self->control_source = control_source;
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GST_LOG ("controller created, updating");
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ges_track_transition_update_controller (self, object->gnlobject);
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return TRUE;
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return TRUE;
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}
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}
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return FALSE;
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return FALSE;
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}
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}
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static void
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static void
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ges_track_transition_class_init (GESTrackTransitionClass * klass)
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ges_track_transition_class_init (GESTrackTransitionClass * klass)
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{
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{
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