gstreamer/ges/ges-custom-timeline-source.c
2010-12-08 12:53:59 +01:00

141 lines
4.2 KiB
C

/* GStreamer Editing Services
* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
* 2009 Nokia Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:ges-custom-timeline-source
* @short_description: Convenience #GESTimelineSource
*
* #GESCustomTimelineSource allows creating #GESTimelineSource(s) without the
* need to subclass.
*
* Its usage should be limited to testing and prototyping purposes.
*/
#include "ges-internal.h"
#include "ges-custom-timeline-source.h"
#include "ges-timeline-source.h"
struct _GESCustomTimelineSourcePrivate
{
FillTrackObjectUserFunc filltrackobjectfunc;
gpointer user_data;
};
G_DEFINE_TYPE (GESCustomTimelineSource, ges_cust_timeline_src,
GES_TYPE_TIMELINE_SOURCE);
static gboolean
ges_cust_timeline_src_fill_track_object (GESTimelineObject * object,
GESTrackObject * trobject, GstElement * gnlobj);
static void
ges_cust_timeline_src_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec)
{
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_cust_timeline_src_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_cust_timeline_src_dispose (GObject * object)
{
G_OBJECT_CLASS (ges_cust_timeline_src_parent_class)->dispose (object);
}
static void
ges_cust_timeline_src_finalize (GObject * object)
{
G_OBJECT_CLASS (ges_cust_timeline_src_parent_class)->finalize (object);
}
static void
ges_cust_timeline_src_class_init (GESCustomTimelineSourceClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GESTimelineObjectClass *tlobj_class = GES_TIMELINE_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GESCustomTimelineSourcePrivate));
object_class->get_property = ges_cust_timeline_src_get_property;
object_class->set_property = ges_cust_timeline_src_set_property;
object_class->dispose = ges_cust_timeline_src_dispose;
object_class->finalize = ges_cust_timeline_src_finalize;
tlobj_class->fill_track_object = ges_cust_timeline_src_fill_track_object;
}
static void
ges_cust_timeline_src_init (GESCustomTimelineSource * self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
GES_TYPE_CUSTOM_TIMELINE_SOURCE, GESCustomTimelineSourcePrivate);
}
static gboolean
ges_cust_timeline_src_fill_track_object (GESTimelineObject * object,
GESTrackObject * trobject, GstElement * gnlobj)
{
gboolean res;
GESCustomTimelineSourcePrivate *priv;
GST_DEBUG ("Calling callback (timelineobj:%p, trackobj:%p, gnlobj:%p)",
object, trobject, gnlobj);
priv = GES_CUSTOM_TIMELINE_SOURCE (object)->priv;
res = priv->filltrackobjectfunc (object, trobject, gnlobj, priv->user_data);
GST_DEBUG ("Returning res:%d", res);
return res;
}
/**
* ges_custom_timeline_source_new:
* @func: The #FillTrackObjectUserFunc that will be used to fill the track objects.
* @user_data: a gpointer that will be used when @func is called.
*
* Creates a new #GESCustomTimelineSource.
*
* Returns: The new #GESCustomTimelineSource.
*/
GESCustomTimelineSource *
ges_custom_timeline_source_new (FillTrackObjectUserFunc func,
gpointer user_data)
{
GESCustomTimelineSource *src;
src = g_object_new (GES_TYPE_CUSTOM_TIMELINE_SOURCE, NULL);
src->priv->filltrackobjectfunc = func;
src->priv->user_data = user_data;
return src;
}