gstreamer/ges/ges-track-audio-title-source.c
2010-07-09 13:21:10 +02:00

125 lines
3.9 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.
*/
/* TODO: this class is nearly identical to the corresponding background
* source. Maybe we chould have a "GESTrackSilentAudioSource" that's shared
* among several timeline objects. There's no particular reason why the track
* object hierarchy has to be exactly parallel to the timeline object
* hierarchy. If anything, that's the motivation for separating them.
*/
/**
* SECTION:ges-track-audio-title-source
* @short_description: silent audio source associated with stand-alone title
*/
#include "ges-internal.h"
#include "ges-track-object.h"
#include "ges-track-audio-title-source.h"
G_DEFINE_TYPE (GESTrackAudioTitleSource, ges_track_audio_title_src,
GES_TYPE_TRACK_TITLE_SOURCE);
enum
{
PROP_0,
};
static void ges_track_audio_title_src_dispose (GObject * object);
static void ges_track_audio_title_src_finalize (GObject * object);
static void ges_track_audio_title_src_get_property (GObject * object, guint
property_id, GValue * value, GParamSpec * pspec);
static void ges_track_audio_title_src_set_property (GObject * object, guint
property_id, const GValue * value, GParamSpec * pspec);
static GstElement *ges_track_audio_title_src_create_element (GESTrackTitleSource
* self);
static void
ges_track_audio_title_src_class_init (GESTrackAudioTitleSourceClass * klass)
{
GObjectClass *object_class;
GESTrackTitleSourceClass *bg_class;
object_class = G_OBJECT_CLASS (klass);
bg_class = GES_TRACK_TITLE_SOURCE_CLASS (klass);
object_class->get_property = ges_track_audio_title_src_get_property;
object_class->set_property = ges_track_audio_title_src_set_property;
object_class->dispose = ges_track_audio_title_src_dispose;
object_class->finalize = ges_track_audio_title_src_finalize;
bg_class->create_element = ges_track_audio_title_src_create_element;
}
static void
ges_track_audio_title_src_init (GESTrackAudioTitleSource * self)
{
}
static void
ges_track_audio_title_src_dispose (GObject * object)
{
G_OBJECT_CLASS (ges_track_audio_title_src_parent_class)->dispose (object);
}
static void
ges_track_audio_title_src_finalize (GObject * object)
{
G_OBJECT_CLASS (ges_track_audio_title_src_parent_class)->finalize (object);
}
static void
ges_track_audio_title_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_track_audio_title_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 GstElement *
ges_track_audio_title_src_create_element (GESTrackTitleSource * self)
{
GstElement *ret;
ret = gst_element_factory_make ("audiotestsrc", NULL);
g_object_set (ret, "volume", (gdouble) 0, NULL);
return ret;
}
GESTrackAudioTitleSource *
ges_track_audio_title_source_new (void)
{
return g_object_new (GES_TYPE_TRACK_AUDIO_TITLE_SOURCE, NULL);
}