gstreamer/ges/ges-track-video-test-source.c
Edward Hervey 3912245f87 GESTrackObject: Add create_element vmethod
API: GESTrackObjectClass::gnlobject_factorytype
API: GESTrackObjectClass::create_element

Most track objects are only specific by the contents of the gnlobject,
therefore move the 'create_element' vmethod which was already present
in some subclasses to the top-level class.

Also make the code more robust
2010-12-10 12:26:44 +01:00

93 lines
2.6 KiB
C

/* GStreamer Editing Services
* Copyright (C) 2010 Brandon Lewis <brandon.lewis@collabora.co.uk>
* 2010 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-track-video-test-source
* @short_description: produce solid colors and patterns
*/
#include "ges-internal.h"
#include "ges-track-object.h"
#include "ges-track-video-test-source.h"
G_DEFINE_TYPE (GESTrackVideoTestSource, ges_track_video_test_source,
GES_TYPE_TRACK_SOURCE);
struct _GESTrackVideoTestSourcePrivate
{
/* Dummy variable */
void *nothing;
};
static GstElement *ges_track_video_test_source_create_element (GESTrackObject *
self);
static void
ges_track_video_test_source_class_init (GESTrackVideoTestSourceClass * klass)
{
GESTrackObjectClass *track_object_class = GES_TRACK_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GESTrackVideoTestSourcePrivate));
track_object_class->create_element =
ges_track_video_test_source_create_element;
}
static void
ges_track_video_test_source_init (GESTrackVideoTestSource * self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
GES_TYPE_TRACK_VIDEO_TEST_SOURCE, GESTrackVideoTestSourcePrivate);
self->pattern = GES_VIDEO_TEST_PATTERN_BLACK;
}
static GstElement *
ges_track_video_test_source_create_element (GESTrackObject * self)
{
GstElement *ret;
gint pattern;
pattern = ((GESTrackVideoTestSource *) self)->pattern;
ret = gst_element_factory_make ("videotestsrc", NULL);
g_object_set (ret, "pattern", (gint) pattern, NULL);
return ret;
}
void
ges_track_video_test_source_set_pattern (GESTrackVideoTestSource
* self, GESVideoTestPattern pattern)
{
GstElement *element;
element = GES_TRACK_OBJECT (self)->element;
self->pattern = pattern;
if (element)
g_object_set (element, "pattern", (gint) pattern, NULL);
}
GESTrackVideoTestSource *
ges_track_video_test_source_new (void)
{
return g_object_new (GES_TYPE_TRACK_VIDEO_TEST_SOURCE, NULL);
}