/* GStreamer

 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>

 * Copyright (C) <2003> David Schleef <ds@schleef.org>

 *

 * 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:gstvideofilter

 * @short_description: Base class for video filters

 * 

 * <refsect2>

 * <para>

 * Provides useful functions and a base class for video filters.

 * </para>

 * <para>

 * The videofilter will by default enable QoS on the parent GstBaseTransform

 * to implement frame dropping.

 * </para>

 * </refsect2>

 */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include "gstvideofilter.h"

GST_DEBUG_CATEGORY_STATIC (gst_video_filter_debug);

#define GST_CAT_DEFAULT gst_video_filter_debug

static void gst_video_filter_class_init (gpointer g_class, gpointer class_data);

static void gst_video_filter_init (GTypeInstance * instance, gpointer g_class);

static GstBaseTransformClass *parent_class = NULL;

#ifdef __SYMBIAN32__

EXPORT_C

#endif

GType

gst_video_filter_get_type (void)

{

  static GType video_filter_type = 0;

  if (!video_filter_type) {

    static const GTypeInfo video_filter_info = {

      sizeof (GstVideoFilterClass),

      NULL,

      NULL,

      gst_video_filter_class_init,

      NULL,

      NULL,

      sizeof (GstVideoFilter),

      0,

      gst_video_filter_init,

    };

    video_filter_type = g_type_register_static (GST_TYPE_BASE_TRANSFORM,

        "GstVideoFilter", &video_filter_info, G_TYPE_FLAG_ABSTRACT);

  }

  return video_filter_type;

}

static void

gst_video_filter_class_init (gpointer g_class, gpointer class_data)

{

  GObjectClass *gobject_class;

  GstElementClass *gstelement_class;

  GstBaseTransformClass *trans_class;

  GstVideoFilterClass *klass;

  klass = (GstVideoFilterClass *) g_class;

  gobject_class = (GObjectClass *) klass;

  gstelement_class = (GstElementClass *) klass;

  trans_class = (GstBaseTransformClass *) klass;

  parent_class = g_type_class_peek_parent (klass);

  GST_DEBUG_CATEGORY_INIT (gst_video_filter_debug, "videofilter", 0,

      "videofilter");

}

static void

gst_video_filter_init (GTypeInstance * instance, gpointer g_class)

{

  GstVideoFilter *videofilter = GST_VIDEO_FILTER (instance);

  GST_DEBUG_OBJECT (videofilter, "gst_video_filter_init");

  videofilter->inited = FALSE;

  /* enable QoS */

  gst_base_transform_set_qos_enabled (GST_BASE_TRANSFORM (videofilter), TRUE);

}