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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wim.taymans@chello.be>
*
* mixer.c: mixer design virtual class function wrappers
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/mixer/mixer.h>
static void gst_mixer_class_init (GstMixerClass *klass);
GType
gst_mixer_get_type (void)
{
static GType gst_mixer_type = 0;
if (!gst_mixer_type) {
static const GTypeInfo gst_mixer_info = {
sizeof (GstMixerClass),
(GBaseInitFunc) gst_mixer_class_init,
NULL,
NULL,
NULL,
NULL,
0,
0,
NULL,
};
gst_mixer_type = g_type_register_static (G_TYPE_INTERFACE,
"GstMixer",
&gst_mixer_info, 0);
g_type_interface_add_prerequisite (gst_mixer_type,
GST_TYPE_INTERFACE);
}
return gst_mixer_type;
}
static void
gst_mixer_class_init (GstMixerClass *klass)
{
/* default virtual functions */
klass->list_channels = NULL;
klass->set_volume = NULL;
klass->get_volume = NULL;
klass->set_mute = NULL;
klass->set_record = NULL;
}
const GList *
gst_mixer_list_channels (GstMixer *mixer)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->list_channels) {
return klass->list_channels (mixer);
}
return NULL;
}
void
gst_mixer_set_volume (GstMixer *mixer,
GstMixerChannel *channel,
gint *volumes)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->set_volume) {
klass->set_volume (mixer, channel, volumes);
}
}
void
gst_mixer_get_volume (GstMixer *mixer,
GstMixerChannel *channel,
gint *volumes)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->get_volume) {
klass->get_volume (mixer, channel, volumes);
} else {
gint i;
for (i = 0; i < channel->num_channels; i++) {
volumes[i] = 0;
}
}
}
void
gst_mixer_set_mute (GstMixer *mixer,
GstMixerChannel *channel,
gboolean mute)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->set_mute) {
klass->set_mute (mixer, channel, mute);
}
}
void
gst_mixer_set_record (GstMixer *mixer,
GstMixerChannel *channel,
gboolean record)
{
GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer);
if (klass->set_record) {
klass->set_record (mixer, channel, record);
}
}
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