/* 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 __BUFFER_H__
#define __BUFFER_H__

#include <gst/gst.h>

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

#define MPEG1MUX_BUFFER_QUEUED(mb) (g_list_length((mb)->timecode_list))
#define MPEG1MUX_BUFFER_SPACE(mb) ((mb)->length)
#define MPEG1MUX_BUFFER_DATA(mb) ((mb)->buffer)
#define MPEG1MUX_BUFFER_TYPE(mb) ((mb)->buffer)
#define MPEG1MUX_BUFFER_FIRST_TIMECODE(mb) (g_list_first((mb)->timecode_list)->data)

#define BUFFER_TYPE_VIDEO 1
#define BUFFER_TYPE_AUDIO 2

#define FRAME_TYPE_IFRAME 1
#define FRAME_TYPE_BFRAME 2
#define FRAME_TYPE_PFRAME 3
#define FRAME_TYPE_AUDIO  4

  typedef struct _Mpeg1MuxBuffer Mpeg1MuxBuffer;
  typedef struct _Mpeg1MuxTimecode Mpeg1MuxTimecode;

  typedef struct video_struc	/* Informationen ueber Video Stream     */
  {
    unsigned int stream_length;
    unsigned int num_sequence;
    unsigned int num_seq_end;
    unsigned int num_pictures;
    unsigned int num_groups;
    unsigned int num_frames[4];
    unsigned int avg_frames[4];

    unsigned int horizontal_size;
    unsigned int vertical_size;
    unsigned int aspect_ratio;
    unsigned int picture_rate;
    unsigned int bit_rate;
    unsigned int comp_bit_rate;
    unsigned int vbv_buffer_size;
    unsigned int CSPF;

    guint64 PTS;
    guint64 DTS;

    guint64 current_PTS;
    guint64 current_DTS;
    guchar current_type;

    double secs_per_frame;
    gulong group_order, decoding_order;
  } Video_struc;

  typedef struct audio_struc	/* Informationen ueber Audio Stream     */
  {
    unsigned int stream_length;
    unsigned int num_syncword;
    unsigned int num_frames[2];
    unsigned int framesize;
    unsigned int layer;
    unsigned int protection;
    unsigned int bit_rate;
    unsigned int frequency;
    unsigned int mode;
    unsigned int mode_extension;
    unsigned int copyright;
    unsigned int original_copy;
    unsigned int emphasis;

    guint64 PTS;

    guint64 current_PTS;

    double samples_per_second;
    gulong decoding_order;
  } Audio_struc;

  struct _Mpeg1MuxTimecode
  {
    gulong length;
    gulong original_length;
    guchar frame_type;
    guint64 PTS;
    guint64 DTS;
  };

  struct _Mpeg1MuxBuffer
  {
    unsigned char *buffer;
    gulong length;
    gulong base;
    gulong scan_pos;
    gulong last_pos;
    gulong current_start;
    guchar buffer_type;
    guchar stream_id;
    gboolean new_frame;
    guint64 next_frame_time;

    union
    {
      Video_struc video;
      Audio_struc audio;
    } info;

    GList *timecode_list;
    GList *queued_list;
  };

  Mpeg1MuxBuffer *mpeg1mux_buffer_new (guchar type, guchar id);

  void mpeg1mux_buffer_queue (Mpeg1MuxBuffer * mb, GstBuffer * buf);
  void mpeg1mux_buffer_shrink (Mpeg1MuxBuffer * mb, gulong size);
  gulong mpeg1mux_buffer_update_queued (Mpeg1MuxBuffer * mb, guint64 scr);


#ifdef __cplusplus
}
#endif				/* __cplusplus */

#endif				/* __BUFFER_H__ */