/* GStreamer

 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>

 *                    2000 Wim Taymans <wtay@chello.be>

 *

 * gstadder.h: Header for GstAdder element

 *

 * 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., 51 Franklin St, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

#ifndef __GST_ADDER_H__

#define __GST_ADDER_H__

#include <gst/gst.h>

#include <gst/base/gstcollectpads.h>

#include <gst/audio/audio.h>

G_BEGIN_DECLS

#define GST_TYPE_ADDER            (gst_adder_get_type())

#define GST_ADDER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ADDER,GstAdder))

#define GST_IS_ADDER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ADDER))

#define GST_ADDER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_ADDER,GstAdderClass))

#define GST_IS_ADDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_ADDER))

typedef struct _GstAdder             GstAdder;

typedef struct _GstAdderClass        GstAdderClass;

typedef struct _GstAdderPad GstAdderPad;

typedef struct _GstAdderPadClass GstAdderPadClass;

/**

 * GstAdder:

 *

 * The adder object structure.

 */

struct _GstAdder {

  GstElement      element;

  GstPad         *srcpad;

  GstCollectPads *collect;

  /* pad counter, used for creating unique request pads */

  gint            padcount;

  /* the next are valid for both int and float */

  GstAudioInfo    info;

  /* counters to keep track of timestamps */

  gint64          offset;

  /* sink event handling */

  GstSegment      segment;

  volatile gboolean new_segment_pending;

  volatile gboolean flush_stop_pending;

  /* current caps */

  GstCaps *current_caps;

  /* target caps (set via property) */

  GstCaps *filter_caps;

  /* Pending inline events */

  GList *pending_events;

  gboolean send_stream_start;

  gboolean send_caps;

};

struct _GstAdderClass {

  GstElementClass parent_class;

};

GType    gst_adder_get_type (void);

#define GST_TYPE_ADDER_PAD            (gst_adder_pad_get_type())

#define GST_ADDER_PAD(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ADDER_PAD,GstAdderPad))

#define GST_IS_ADDER_PAD(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ADDER_PAD))

#define GST_ADDER_PAD_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_ADDER_PAD,GstAdderPadClass))

#define GST_IS_ADDER_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_ADDER_PAD))

#define GST_ADDER_PAD_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_ADDER_PAD,GstAdderPadClass))

struct _GstAdderPad {

  GstPad parent;

  gdouble volume;

  gint volume_i32;

  gint volume_i16;

  gint volume_i8;

  gboolean mute;

};

struct _GstAdderPadClass {

  GstPadClass parent_class;

};

GType gst_adder_pad_get_type (void);

G_END_DECLS

#endif /* __GST_ADDER_H__ */