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/* mpeg2dec.h, MPEG specific defines                                        */

/* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */

/*

 * Disclaimer of Warranty

 *

 * These software programs are available to the user without any license fee or

 * royalty on an "as is" basis.  The MPEG Software Simulation Group disclaims

 * any and all warranties, whether express, implied, or statuary, including any

 * implied warranties or merchantability or of fitness for a particular

 * purpose.  In no event shall the copyright-holder be liable for any

 * incidental, punitive, or consequential damages of any kind whatsoever

 * arising from the use of these programs.

 *

 * This disclaimer of warranty extends to the user of these programs and user's

 * customers, employees, agents, transferees, successors, and assigns.

 *

 * The MPEG Software Simulation Group does not represent or warrant that the

 * programs furnished hereunder are free of infringement of any third-party

 * patents.

 *

 * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,

 * are subject to royalty fees to patent holders.  Many of these patents are

 * general enough such that they are unavoidable regardless of implementation

 * design.

 *

 */

#define ERROR (-1)

#define PICTURE_START_CODE      0x100

#define SLICE_START_CODE_MIN    0x101

#define SLICE_START_CODE_MAX    0x1AF

#define USER_DATA_START_CODE    0x1B2

#define SEQUENCE_HEADER_CODE    0x1B3

#define SEQUENCE_ERROR_CODE     0x1B4

#define EXTENSION_START_CODE    0x1B5

#define SEQUENCE_END_CODE       0x1B7

#define GROUP_START_CODE        0x1B8

#define SYSTEM_START_CODE_MIN   0x1B9

#define SYSTEM_START_CODE_MAX   0x1FF

#define ISO_END_CODE            0x1B9

#define PACK_START_CODE         0x1BA

#define SYSTEM_START_CODE       0x1BB

#define VIDEO_ELEMENTARY_STREAM 0x1e0

/* scalable_mode */

#define SC_NONE 0

#define SC_DP   1

#define SC_SPAT 2

#define SC_SNR  3

#define SC_TEMP 4

/* picture coding type */

#define I_TYPE 1

#define P_TYPE 2

#define B_TYPE 3

#define D_TYPE 4

/* picture structure */

#define TOP_FIELD     1

#define BOTTOM_FIELD  2

#define FRAME_PICTURE 3

/* macroblock type */

#define MACROBLOCK_INTRA                        1

#define MACROBLOCK_PATTERN                      2

#define MACROBLOCK_MOTION_BACKWARD              4

#define MACROBLOCK_MOTION_FORWARD               8

#define MACROBLOCK_QUANT                        16

#define SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG       32

#define PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS 64

/* motion_type */

#define MC_FIELD 1

#define MC_FRAME 2

#define MC_16X8  2

#define MC_DMV   3

/* mv_format */

#define MV_FIELD 0

#define MV_FRAME 1

/* chroma_format */

#define CHROMA420 1

#define CHROMA422 2

#define CHROMA444 3

/* 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 ZIG_ZAG                                  0

#define PROFILE_422                             (128+5)

#define MAIN_LEVEL                              8

/* Layers: used by Verbose_Flag, Verifier_Flag, Stats_Flag, and Trace_Flag */

#define NO_LAYER                                0

#define SEQUENCE_LAYER                          1

#define PICTURE_LAYER                           2

#define SLICE_LAYER                             3    

#define MACROBLOCK_LAYER                        4    

#define BLOCK_LAYER                             5

#define EVENT_LAYER                             6

#define ALL_LAYERS                              7

#define FILENAME_LENGTH                       256

#define MB_WEIGHT                  32

#define MB_CLASS4                  64