gstreamer/gst/mpegstream/gstmpegdemux.h

/* GStreamer
 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
 *
 * 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 __MPEG_DEMUX_H__
#define __MPEG_DEMUX_H__


#include <config.h>
#include <gst/gst.h>
#include "gstmpegparse.h"


#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */


#define GST_TYPE_MPEG_DEMUX \
  (mpeg_demux_get_type())
#define GST_MPEG_DEMUX(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEG_DEMUX,GstMPEGDemux))
#define GST_MPEG_DEMUX_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEG_DEMUX,GstMPEGDemux))
#define GST_IS_MPEG_DEMUX(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEG_DEMUX))
#define GST_IS_MPEG_DEMUX_CLASS(obj) \
  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEG_DEMUX))

typedef struct _GstMPEGDemux GstMPEGDemux;
typedef struct _GstMPEGDemuxClass GstMPEGDemuxClass;

typedef struct _MPEG1Stream MPEG1Stream;

struct _MPEG1Stream {
  guchar stream_id;
  gint8 STD_buffer_bound_scale;
  gint16 STD_buffer_size_bound;
};

typedef struct _GstMPEG1StreamContext GstMPEG1StreamContext;

struct _GstMPEGStreamContext {
  GstPad *pad;
  guint64 pts;
};

struct _GstMPEGDemux {
  GstMPEGParse parent;

  /* current parse state */
  guchar id;

  /* previous partial chunk and bytes remaining in it */
  gboolean in_flush;

  /* counters */
  gulong packs;

  /* pack header values */
  gboolean have_packhead;
  guint64 scr_base;
  guint16 scr_extension;
  guint32 bit_rate;

  /* program stream header values */
  gboolean have_syshead;
  guint16 header_length;
  guint32 rate_bound;
  guint8 audio_bound;
  gboolean fixed;
  gboolean constrained;
  gboolean audio_lock;
  gboolean video_lock;
  guint8 video_bound;
  gboolean packet_rate_restriction;
  struct _MPEG1Stream STD_buffer_info[48];

#define NUM_PRIVATE_1_PADS 8
#define NUM_SUBTITLE_PADS 16
#define NUM_VIDEO_PADS 16
#define NUM_AUDIO_PADS 32

  /* stream output pads */
  GstPad *private_1_pad[NUM_PRIVATE_1_PADS];	/* up to 8 ac3 audio tracks */
  gulong private_1_PTS[NUM_PRIVATE_1_PADS];

  GstPad *subtitle_pad[NUM_SUBTITLE_PADS];
  gulong subtitle_offset[NUM_SUBTITLE_PADS];

  GstPad *private_2_pad;
  gulong private_2_offset;

  GstPad *video_pad[NUM_VIDEO_PADS];
  gint64 video_PTS[NUM_VIDEO_PADS];

  GstPad *audio_pad[NUM_AUDIO_PADS];
  gint64 audio_PTS[NUM_AUDIO_PADS];

};

struct _GstMPEGDemuxClass {
  GstMPEGParseClass parent_class;
};

GType gst_mpeg_demux_get_type(void);

gboolean 	gst_mpeg_demux_plugin_init 	(GModule *module, GstPlugin *plugin);

#ifdef __cplusplus
}
#endif /* __cplusplus */


#endif /* __MPEG_DEMUX_H__ */