gstreamer/gst/mpegtsdemux/mpegtsparse.h

/*
 * mpegts_parse.h - GStreamer MPEG transport stream parser
 * Copyright (C) 2007 Alessandro Decina
 * 
 * Authors:
 *   Alessandro Decina <alessandro@nnva.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., 51 Franklin St, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */


#ifndef GST_MPEG_TS_PARSE_H
#define GST_MPEG_TS_PARSE_H

#include <gst/gst.h>
#include <gst/base/gstflowcombiner.h>
#include "mpegtsbase.h"
#include "mpegtspacketizer.h"

G_BEGIN_DECLS

#define GST_TYPE_MPEGTS_PARSE \
  (mpegts_parse_get_type())
#define GST_MPEGTS_PARSE(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEGTS_PARSE,MpegTSParse2))
#define GST_MPEGTS_PARSE_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEGTS_PARSE,MpegTSParse2Class))
#define GST_IS_MPEGTS_PARSE(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEGTS_PARSE))
#define GST_IS_MPEGTS_PARSE_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEGTS_PARSE))

typedef struct _MpegTSParse2 MpegTSParse2;
typedef struct _MpegTSParse2Class MpegTSParse2Class;

typedef struct _MpegTSParse2Adapter {
  GstAdapter *adapter;
  guint packets_in_adapter;
  gboolean first_is_keyframe;
} MpegTSParse2Adapter;

struct _MpegTSParse2 {
  MpegTSBase parent;

  gboolean have_group_id;
  guint group_id;

  GstClockTime smoothing_latency;
  GstClockTime base_pcr;
  GstClockTime ts_offset;
  GstClockTime current_pcr;
  gint user_pcr_pid;
  gint pcr_pid;

  /* Always present source pad */
  GstPad *srcpad;

  /* Request source (single program) pads */
  GList *srcpads;

  GstFlowCombiner *flowcombiner;

  /* state */
  gboolean first;
  gboolean set_timestamps;

  /* Pending buffer state */
  GList *pending_buffers;
  GstClockTime previous_pcr;
  guint bytes_since_pcr;

  /* Combine several packets into a larger buffer */
  MpegTSParse2Adapter ts_adapter;
  guint alignment;
  gboolean split_on_rai;
  gboolean is_eos;
  guint32 header;
};

struct _MpegTSParse2Class {
  MpegTSBaseClass parent_class;
};

G_GNUC_INTERNAL GType mpegts_parse_get_type(void);
GST_ELEMENT_REGISTER_DECLARE (tsparse);

G_END_DECLS

#endif /* GST_MPEG_TS_PARSE_H */