/* ALSA mixer object implementation.

 * Copyright (C) 2003 Leif Johnson <leif@ambient.2y.net>

 *

 * 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 "gstalsamixeroptions.h"

static void gst_alsa_mixer_options_init (GstAlsaMixerOptions * alsa_opts);

static void gst_alsa_mixer_options_class_init (gpointer g_class,

    gpointer class_data);

static GstMixerOptionsClass *parent_class = NULL;

GType

gst_alsa_mixer_options_get_type (void)

{

  static GType opts_type = 0;

  if (!opts_type) {

    static const GTypeInfo opts_info = {

      sizeof (GstAlsaMixerOptionsClass),

      NULL,

      NULL,

      gst_alsa_mixer_options_class_init,

      NULL,

      NULL,

      sizeof (GstAlsaMixerOptions),

      0,

      (GInstanceInitFunc) gst_alsa_mixer_options_init,

    };

    opts_type =

        g_type_register_static (GST_TYPE_MIXER_OPTIONS, "GstAlsaMixerOptions",

        &opts_info, 0);

  }

  return opts_type;

}

static void

gst_alsa_mixer_options_class_init (gpointer g_class, gpointer class_data)

{

  parent_class = g_type_class_peek_parent (g_class);

}

static void

gst_alsa_mixer_options_init (GstAlsaMixerOptions * alsa_opts)

{

}

GstMixerOptions *

gst_alsa_mixer_options_new (snd_mixer_elem_t * element, gint track_num)

{

  GstMixerOptions *opts;

  GstAlsaMixerOptions *alsa_opts;

  GstMixerTrack *track;

  const gchar *label;

  gint num, i;

  gchar str[256];

  label = snd_mixer_selem_get_name (element);

  opts = g_object_new (GST_ALSA_MIXER_OPTIONS_TYPE,

      "untranslated-label", label, NULL);

  alsa_opts = (GstAlsaMixerOptions *) opts;

  track = (GstMixerTrack *) opts;

  /* set basic information */

  track->label = g_strdup (label);      /* FIXME: translate this? */

  track->num_channels = 0;

  track->flags = 0;

  alsa_opts->element = element;

  alsa_opts->track_num = track_num;

  /* get enumerations for switch/options object */

  num = snd_mixer_selem_get_enum_items (element);

  for (i = 0; i < num; i++) {

    if (snd_mixer_selem_get_enum_item_name (element, i, 255, str) < 0) {

      g_object_unref (G_OBJECT (alsa_opts));

      return NULL;

    }

    opts->values = g_list_append (opts->values, g_strdup (str));

  }

  return opts;

}