gstreamer/ges/ges-custom-timeline-source.c

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/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
* 2009 Nokia Corporation
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*
* 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.
*/
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#include "ges-internal.h"
#include "ges-custom-timeline-source.h"
#include "ges-timeline-source.h"
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#include "ges-track-source.h"
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struct _GESCustomTimelineSourcePrivate
{
GESFillTrackObjectUserFunc filltrackobjectfunc;
gpointer user_data;
};
G_DEFINE_TYPE (GESCustomTimelineSource, ges_custom_timeline_source,
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GES_TYPE_TIMELINE_SOURCE);
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static gboolean
ges_custom_timeline_source_fill_track_object (GESTimelineObject * object,
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GESTrackObject * trobject, GstElement * gnlobj);
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static GESTrackObject *
ges_custom_timeline_source_create_track_object (GESTimelineObject * obj,
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GESTrack * track)
{
return g_object_new (GES_TYPE_TRACK_SOURCE, NULL);
}
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static void
ges_custom_timeline_source_class_init (GESCustomTimelineSourceClass * klass)
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{
GESTimelineObjectClass *tlobj_class = GES_TIMELINE_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GESCustomTimelineSourcePrivate));
tlobj_class->fill_track_object = ges_custom_timeline_source_fill_track_object;
tlobj_class->create_track_object =
ges_custom_timeline_source_create_track_object;
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}
static void
ges_custom_timeline_source_init (GESCustomTimelineSource * self)
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{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
GES_TYPE_CUSTOM_TIMELINE_SOURCE, GESCustomTimelineSourcePrivate);
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}
static gboolean
ges_custom_timeline_source_fill_track_object (GESTimelineObject * object,
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GESTrackObject * trobject, GstElement * gnlobj)
{
gboolean res;
GESCustomTimelineSourcePrivate *priv;
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GST_DEBUG ("Calling callback (timelineobj:%p, trackobj:%p, gnlobj:%p)",
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object, trobject, gnlobj);
priv = GES_CUSTOM_TIMELINE_SOURCE (object)->priv;
res = priv->filltrackobjectfunc (object, trobject, gnlobj, priv->user_data);
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GST_DEBUG ("Returning res:%d", res);
return res;
}
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/**
* ges_custom_timeline_source_new:
* @func: The #GESFillTrackObjectUserFunc that will be used to fill the track objects.
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* @user_data: a gpointer that will be used when @func is called.
*
* Creates a new #GESCustomTimelineSource.
*
* Returns: The new #GESCustomTimelineSource.
*/
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GESCustomTimelineSource *
ges_custom_timeline_source_new (GESFillTrackObjectUserFunc func,
gpointer user_data)
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{
GESCustomTimelineSource *src;
src = g_object_new (GES_TYPE_CUSTOM_TIMELINE_SOURCE, NULL);
src->priv->filltrackobjectfunc = func;
src->priv->user_data = user_data;
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return src;
}