/* GStreamer Tuner

 * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>

 *

 * tunerchannel.c: tuner channel object design

 *

 * 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 "tunerchannel.h"

/**

 * SECTION:gsttunerchannel

 * @short_description: A channel from an element implementing the #GstTuner

 * interface.

 *

 * <refsect2>

 * <para>The #GstTunerChannel object is provided by an element implementing

 * the #GstTuner interface.

 * </para>

 * <para>

 * GstTunerChannel provides a name and flags to determine the type and

 * capabilities of the channel. If the GST_TUNER_CHANNEL_FREQUENCY flag is

 * set, then the channel also information about the minimum and maximum

 * frequency, and range of the reported signal strength.

 * </para>

 * </refsect2>

 */

enum

{

  /* FILL ME */

  SIGNAL_FREQUENCY_CHANGED,

  SIGNAL_SIGNAL_CHANGED,

  LAST_SIGNAL

};

static void gst_tuner_channel_class_init (GstTunerChannelClass * klass);

static void gst_tuner_channel_init (GstTunerChannel * channel);

static void gst_tuner_channel_dispose (GObject * object);

static GObjectClass *parent_class = NULL;

static guint signals[LAST_SIGNAL] = { 0 };

#ifdef __SYMBIAN32__

EXPORT_C

#endif

GType

gst_tuner_channel_get_type (void)

{

  static GType gst_tuner_channel_type = 0;

  if (!gst_tuner_channel_type) {

    static const GTypeInfo tuner_channel_info = {

      sizeof (GstTunerChannelClass),

      NULL,

      NULL,

      (GClassInitFunc) gst_tuner_channel_class_init,

      NULL,

      NULL,

      sizeof (GstTunerChannel),

      0,

      (GInstanceInitFunc) gst_tuner_channel_init,

      NULL

    };

    gst_tuner_channel_type =

        g_type_register_static (G_TYPE_OBJECT,

        "GstTunerChannel", &tuner_channel_info, 0);

  }

  return gst_tuner_channel_type;

}

static void

gst_tuner_channel_class_init (GstTunerChannelClass * klass)

{

  GObjectClass *object_klass = (GObjectClass *) klass;

  parent_class = g_type_class_peek_parent (klass);

  /**

   * GstTunerChannel::frequency-changed:

   * @tunerchannel: The #GstTunerChannel

   * @frequency: The new frequency (an unsigned long)

   *

   * Reports that the current frequency has changed.

   */

  signals[SIGNAL_FREQUENCY_CHANGED] =

      g_signal_new ("frequency-changed", G_TYPE_FROM_CLASS (klass),

      G_SIGNAL_RUN_LAST,

      G_STRUCT_OFFSET (GstTunerChannelClass,

          frequency_changed),

      NULL, NULL, g_cclosure_marshal_VOID__ULONG, G_TYPE_NONE, 1, G_TYPE_ULONG);

  /**

   * GstTunerChannel::signal-changed:

   * @tunerchannel: The #GstTunerChannel

   * @signal: The new signal strength (an integer)

   *

   * Reports that the signal strength has changed.

   *

   * See Also: gst_tuner_signal_strength()

   */

  signals[SIGNAL_SIGNAL_CHANGED] =

      g_signal_new ("signal-changed", G_TYPE_FROM_CLASS (klass),

      G_SIGNAL_RUN_LAST,

      G_STRUCT_OFFSET (GstTunerChannelClass,

          signal_changed),

      NULL, NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);

  object_klass->dispose = gst_tuner_channel_dispose;

}

static void

gst_tuner_channel_init (GstTunerChannel * channel)

{

  channel->label = NULL;

  channel->flags = 0;

  channel->min_frequency = channel->max_frequency = 0;

  channel->min_signal = channel->max_signal = 0;

}

static void

gst_tuner_channel_dispose (GObject * object)

{

  GstTunerChannel *channel = GST_TUNER_CHANNEL (object);

  if (channel->label) {

    g_free (channel->label);

    channel->label = NULL;

  }

  if (parent_class->dispose)

    parent_class->dispose (object);

}