mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2010 Brandon Lewis <brandon@collabora.co.uk>
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* 2010 Nokia Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:ges-track-transition
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* @short_description: base class for audio and video transitions
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*
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*/
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#include "ges-internal.h"
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#include "ges-track-object.h"
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#include "ges-track-transition.h"
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#include "ges-timeline-transition.h"
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G_DEFINE_TYPE (GESTrackTransition, ges_track_transition, GES_TYPE_TRACK_OBJECT);
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struct _GESTrackTransitionPrivate
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{
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/* Dummy variable */
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void *nothing;
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};
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GstElement *ges_track_transition_create_element (GESTrackTransition * self);
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static void
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ges_track_transition_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ges_track_transition_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ges_track_transition_dispose (GObject * object)
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{
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G_OBJECT_CLASS (ges_track_transition_parent_class)->dispose (object);
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}
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static void
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ges_track_transition_finalize (GObject * object)
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{
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G_OBJECT_CLASS (ges_track_transition_parent_class)->finalize (object);
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}
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static gboolean
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ges_track_transition_create_gnl_object (GESTrackObject * object)
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{
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GESTrackTransition *self;
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GESTrackTransitionClass *klass;
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GstElement *element;
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gchar *name;
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static gint tnum = 0;
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self = GES_TRACK_TRANSITION (object);
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klass = GES_TRACK_TRANSITION_GET_CLASS (object);
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name = g_strdup_printf ("transition-operation%d", tnum++);
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object->gnlobject = gst_element_factory_make ("gnloperation", name);
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g_free (name);
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g_object_set (object->gnlobject, "priority", 0, NULL);
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element = klass->create_element (self);
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if (!GST_IS_ELEMENT (element))
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return FALSE;
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gst_bin_add (GST_BIN (object->gnlobject), element);
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return TRUE;
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}
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GstElement *
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ges_track_transition_create_element (GESTrackTransition * self)
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{
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GST_WARNING ("transitions don't handle this track type!");
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return NULL;
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}
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static void
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ges_track_transition_class_init (GESTrackTransitionClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GESTrackObjectClass *track_class = GES_TRACK_OBJECT_CLASS (klass);
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g_type_class_add_private (klass, sizeof (GESTrackTransitionPrivate));
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object_class->get_property = ges_track_transition_get_property;
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object_class->set_property = ges_track_transition_set_property;
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object_class->dispose = ges_track_transition_dispose;
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object_class->finalize = ges_track_transition_finalize;
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track_class->create_gnl_object = ges_track_transition_create_gnl_object;
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klass->create_element = ges_track_transition_create_element;
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}
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static void
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ges_track_transition_init (GESTrackTransition * self)
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{
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self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
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GES_TYPE_TRACK_TRANSITION, GESTrackTransitionPrivate);
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}
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