/* GStreamer

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

 * Copyright (C) <2006> Nokia Corporation, Stefan Kost <stefan.kost@nokia.com>.

 *

 * 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.

 */

#ifndef __GST_WAVPARSE_H__

#define __GST_WAVPARSE_H__

#include <gst/gst.h>

#include "gst/riff/riff-ids.h"

#include "gst/riff/riff-read.h"

#include <gst/base/gstadapter.h>

G_BEGIN_DECLS

#define GST_TYPE_WAVPARSE \

  (gst_wavparse_get_type())

#define GST_WAVPARSE(obj) \

  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVPARSE,GstWavParse))

#define GST_WAVPARSE_CLASS(klass) \

  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVPARSE,GstWavParseClass))

#define GST_IS_WAVPARSE(obj) \

  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVPARSE))

#define GST_IS_WAVPARSE_CLASS(klass) \

  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVPARSE))

typedef enum {

  GST_WAVPARSE_START,

  GST_WAVPARSE_HEADER,

  GST_WAVPARSE_DATA

} GstWavParseState;

typedef struct _GstWavParse GstWavParse;

typedef struct _GstWavParseClass GstWavParseClass;

/**

 * GstWavParse:

 *

 * Opaque data structure.

 */

struct _GstWavParse {

  GstElement parent;

  /* pads */

  GstPad *sinkpad,*srcpad;

  /* for delayed source pad creation for when

   * we have the first chunk of data and know

   * the format for sure */

  GstCaps     *caps;

  GstTagList  *tags;

  GstEvent    *close_segment;

  GstEvent    *start_segment;

  /* WAVE decoding state */

  GstWavParseState state;

  /* format of audio, see defines below */

  gint format;

  /* useful audio data */

  guint16 depth;

  guint32 rate;

  guint16 channels;

  guint16 blockalign;

  guint16 width;

  guint32 av_bps;

  guint32 fact;

  /* real bps used or 0 when no bitrate is known */

  guint32 bps;

  gboolean vbr;

  guint bytes_per_sample;

  /* position in data part */

  guint64	offset;

  guint64	end_offset;

  guint64 	dataleft;

  /* offset/length of data part */

  guint64 	datastart;

  guint64 	datasize;

  /* duration in time */

  guint64 	duration;

  /* pending seek */

  GstEvent *seek_event;

  /* For streaming */

  GstAdapter *adapter;

  gboolean got_fmt;

  gboolean streaming;

  /* configured segment, start/stop expressed in time */

  GstSegment segment;

  gboolean segment_running;

  /* for late pad configuration */

  gboolean first;

  /* discont after seek */

  gboolean discont;

};

struct _GstWavParseClass {

  GstElementClass parent_class;

};

GType gst_wavparse_get_type(void);

G_END_DECLS

#endif /* __GST_WAVPARSE_H__ */