gstreamer/ges/ges-track.c

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/* GStreamer Editing Services
* Copyright (C) 2009 Edward Hervey <bilboed@bilboed.com>
*
* 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.
*/
#include "ges-internal.h"
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#include "ges-track.h"
#include "ges-track-object.h"
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/**
* GESTrack
*
* Corresponds to one output format (i.e. audio OR video)
*
* Contains the compatible TrackObject(s)
*/
G_DEFINE_TYPE (GESTrack, ges_track, GST_TYPE_BIN);
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static void
ges_track_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
switch (property_id) {
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default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
}
static void
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ges_track_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
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{
switch (property_id) {
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default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
}
static void
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ges_track_dispose (GObject * object)
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{
G_OBJECT_CLASS (ges_track_parent_class)->dispose (object);
}
static void
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ges_track_finalize (GObject * object)
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{
G_OBJECT_CLASS (ges_track_parent_class)->finalize (object);
}
static void
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ges_track_class_init (GESTrackClass * klass)
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{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = ges_track_get_property;
object_class->set_property = ges_track_set_property;
object_class->dispose = ges_track_dispose;
object_class->finalize = ges_track_finalize;
}
static void
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ges_track_init (GESTrack * self)
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{
}
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GESTrack *
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ges_track_new (void)
{
return g_object_new (GES_TYPE_TRACK, NULL);
}
void
ges_track_set_timeline (GESTrack * track, GESTimeline * timeline)
{
GST_DEBUG ("track:%p, timeline:%p", track, timeline);
track->timeline = timeline;
}
gboolean
ges_track_add_object (GESTrack * track, GESTrackObject * object)
{
GST_DEBUG ("track:%p, object:%p", track, object);
if (G_UNLIKELY (object->track != NULL)) {
GST_WARNING ("Object already belongs to another track");
return FALSE;
}
if (G_UNLIKELY (object->gnlobject != NULL)) {
GST_ERROR ("TrackObject doesn't have a gnlobject !");
return FALSE;
}
ges_track_object_set_track (object, track);
GST_DEBUG ("Adding object to ourself");
/* make sure the object has a valid gnlobject ! */
if (G_UNLIKELY (!gst_bin_add (GST_BIN (track->composition),
object->gnlobject))) {
GST_WARNING ("Couldn't add object to the GnlComposition");
return FALSE;
}
return TRUE;
}