/*
  definitions of common startcodes
  Copyright (C) 2000  Martin Vogt

  This program 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.

  For more information look at the file COPYRIGHT in this package

 */





#ifndef __STARTCODES_H
#define __STARTCODES_H



/* Macros for picture code type. */

#define I_TYPE 1
#define P_TYPE 2
#define B_TYPE 3
#define D_TYPE 4

/* Start codes. */


#define SEQ_END_CODE 0x000001b7
#define SEQ_START_CODE 0x000001b3
#define GOP_START_CODE 0x000001b8
#define PICTURE_START_CODE 0x00000100
#define SLICE_MIN_START_CODE 0x00000101
#define SLICE_MAX_START_CODE 0x000001af
#define EXT_START_CODE 0x000001b5
#define USER_START_CODE 0x000001b2
#define SEQUENCE_ERROR_CODE 0x000001b4

//extension start code ids
#define SEQUENCE_EXTENSION_ID                    1
#define SEQUENCE_DISPLAY_EXTENSION_ID            2
#define QUANT_MATRIX_EXTENSION_ID                3
#define COPYRIGHT_EXTENSION_ID                   4
#define SEQUENCE_SCALABLE_EXTENSION_ID           5
#define PICTURE_DISPLAY_EXTENSION_ID             7
#define PICTURE_CODING_EXTENSION_ID              8
#define PICTURE_SPATIAL_SCALABLE_EXTENSION_ID    9
#define PICTURE_TEMPORAL_SCALABLE_EXTENSION_ID  10

#define ISO_11172_END_CODE          ((unsigned int)0x000001b9)
#define SYSTEM_HEADER_START_CODE    ((unsigned int)0x000001bb)

/* Macros used with macroblock address decoding. */

#define MB_STUFFING 34
#define MB_ESCAPE 35



#endif