/* 
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/.
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is Fluendo MPEG Demuxer plugin.
 *
 * The Initial Developer of the Original Code is Fluendo, S.L.
 * Portions created by Fluendo, S.L. are Copyright (C) 2005
 * Fluendo, S.L. All Rights Reserved.
 *
 * Contributor(s): Wim Taymans <wim@fluendo.com>
 */

#ifndef __GST_PES_FILTER_H__
#define __GST_PES_FILTER_H__

#include <gst/gst.h>
#include <gst/base/gstadapter.h>

G_BEGIN_DECLS

typedef struct _GstPESFilter GstPESFilter;

typedef GstFlowReturn 	(*GstPESFilterData) 	(GstPESFilter *filter, gboolean first, GstBuffer *buffer, 
						 gpointer user_data);
typedef void 		(*GstPESFilterResync) 	(GstPESFilter *filter, gpointer user_data);

typedef enum {
  STATE_HEADER_PARSE,
  STATE_DATA_PUSH, 
  STATE_DATA_SKIP 
} GstPESFilterState;

struct _GstPESFilter {
  GstAdapter	    *adapter;

  GstPESFilterState  state;
  /* Whether to collect entire PES packets before
   * outputting */
  gboolean           gather_pes;
  /* Whether unbounded packets are allowed in this
   * stream */
  gboolean           allow_unbounded;

  gboolean           first;
  GstPESFilterData   data_cb;
  GstPESFilterResync resync_cb;
  gpointer           user_data;

  guint32            start_code;
  guint8             id;
  gboolean           unbounded_packet;
  guint16            length;

  guint8	     type;

  gint64             pts;
  gint64             dts;
};

void		gst_pes_filter_init (GstPESFilter *filter, GstAdapter *adapter);

void		gst_pes_filter_uninit 		(GstPESFilter *filter);

void		gst_pes_filter_set_callbacks 	(GstPESFilter *filter, 
						 GstPESFilterData data_cb,
						 GstPESFilterResync resync_cb,
						 gpointer user_data);

GstFlowReturn	gst_pes_filter_push		(GstPESFilter *filter, GstBuffer *buffer);
GstFlowReturn	gst_pes_filter_process		(GstPESFilter *filter);

void		gst_pes_filter_flush		(GstPESFilter *filter);
GstFlowReturn	gst_pes_filter_drain		(GstPESFilter *filter);

G_END_DECLS

#endif /* __GST_PES_FILTER_H__ */