defines.h

Mobile IP VCEG的信道模拟程序

/***************************************************************************
 *
 * Modul       :  defines.h
 *
 * Author      :  Detlev Marpe
 *
 * Date        :  21. March 2001
 *
 * Description :  Headerfile containing some useful global definitions
 *                
 *      Copyright (C) 2000 HEINRICH HERTZ INSTITUTE All Rights Reserved.
 *		  
 **************************************************************************/


#ifndef _DEFINES_H_
#define _DEFINES_H_


#define _ADAPT_LAST_GROUP_

#define  MAX_INFO_WORD  300000       /* for one frame */
#define MAX_CODED_FRAME_SIZE 200000	// bytes for one frame
#define MAXIMUM_UVLC_CODEWORD_PER_HEADER 20	// UVLC codewordsper combined picture/slice header maximum

#define TRACE           0       /* 0:Trace off 1:Trace on*/

#define UMV

#define absm(A) ((A)<(0) ? (-(A)):(A)) /* abs macro, faster than procedure */
#define MAX_VALUE       999999   /* used for start value for some variables */

#define INTER_IMG_1     0
#define INTER_IMG_MULT  1
#define INTRA_IMG       2

// B pictures
#define B_IMG_1		3
#define B_IMG_MULT	4

/* coding of MBtypes */
#define INTRA_CODED_MB  0
#define INTER_CODED_MB  1

/* inter MB modes */
#define COPY_MB         0        /* just copy last MB, no motion vectors */
#define M16x16_MB       1        /* 16 x 16 block */
#define M16x8_MB        2
#define M8x16_MB        3
#define M8x8_MB         4
#define M8x4_MB         5
#define M4x8_MB         6
#define M4x4_MB         7
#define INTRA_MB        8                       /* intra coded MB in inter frame */

// B pictures : MB mode
#define INTRA_MB_B      16



/* imod constants */
#define INTRA_MB_OLD    0       /* new intra prediction mode in inter frame         */
#define INTRA_MB_NEW    1       /* 'old' intra prediction mode in inter frame       */
#define INTRA_MB_INTER  2       /* Intra MB in inter frame, use the constants above */

/* B pictures : img->imod */
#define B_Forward       3
#define B_Backward      4
#define B_Bidirect      5
#define B_Direct        6

#define BLOCK_SIZE      4
#define MB_BLOCK_SIZE   16

#ifdef USE_9_INTRA_MODES
// These are the defines used when implementing RealNetworks 9 Intra Modes

#define NO_INTRA_PMODE  9        /* #intra prediction modes */
/* 4x4 intra prediction modes */
#define DC_PRED         0
#define VERT_PRED       1
#define HOR_PRED        2
#define DIAG_PRED_SE    3
#define DIAG_PRED_NE    4
#define DIAG_PRED_SSE   5
#define DIAG_PRED_NNE   6
#define DIAG_PRED_ENE   7
#define DIAG_PRED_ESE   8

#else

#define NO_INTRA_PMODE  6        /* #intra prediction modes */
/* 4x4 intra prediction modes */
#define DC_PRED         0
#define DIAG_PRED_RL    1
#define VERT_PRED       2
#define DIAG_PRED_LR_45 3
#define HOR_PRED        4
#define DIAG_PRED_LR    5

#endif

/* 16x16 intra prediction modes */
#define VERT_PRED_16    0
#define HOR_PRED_16     1
#define DC_PRED_16      2
#define PLANE_16        3

/* image formats, added by HG, deleted by StW*/
/* 
#define SUB_QCIF        0       
#define QCIF            1
#define CIF             2
#define CIF_4           3       
#define CIF_16          4       
#define CUSTOM          5       
*/

/* QCIF format */
#define IMG_WIDTH       176
#define IMG_HEIGHT      144
#define IMG_WIDTH_CR    88
#define IMG_HEIGHT_CR   72

#define INIT_FRAME_RATE 30
#define LEN_STARTCODE   31        /* length of start code */
//#define MAX_MULT_PRED   (5+1)         /* max number of frames to make inter prediction from, + one B-frame */
#define EOS             1         /* End Of Sequence */
#define SOP             2         /* Start Of Picture */
#define SOS             3         /* Start Of Slice */

#define EOS_MASK        0x01                    /* mask for end of sequence (bit 1)         */
#define ICIF_MASK       0x02                    /* mask for image format (bit 2)            */
#define QP_MASK         0x7C                    /* mask for quant.parameter (bit 3->7)      */
#define TR_MASK         0x7f80                  /* mask for temporal referance (bit 8->15)  */

#define DECODING_OK     0
#define SEARCH_SYNC     1
#define PICTURE_DECODED 2

#define MIN_PIX_VAL     0                       /* lowest legal values for 8 bit sample     */
#define MAX_PIX_VAL     255                     /* highest legal values for 8 bit sample    */

#ifndef WIN32
#define max(a, b)      ((a) > (b) ? (a) : (b)) /* Macro returning max value                */
#define min(a, b)      ((a) < (b) ? (a) : (b)) /* Macro returning min value                */
#endif
#define mmax(a, b)      ((a) > (b) ? (a) : (b)) /* Macro returning max value                */
#define mmin(a, b)      ((a) < (b) ? (a) : (b)) /* Macro returning min value                */


#define MVPRED_MEDIAN   0
#define MVPRED_L        1
#define MVPRED_U        2
#define MVPRED_UR       3

/* GB */
#define DECODE_COPY_MB  0
#define DECODE_MB       1
#define DECODE_MB_BFRAME 2

#define	BLOCK_MULTIPLE			(MB_BLOCK_SIZE/BLOCK_SIZE)

#define MAX_SYMBOLS_PER_MB	600	/* Maximum number of different syntax elements for one MB */

#define MAX_PART_NR			8	/* Maximum number of different data partitions */ 
													/* Some reasonable number which should reflect */
													/* what is currently defined in the SE2Partition map (elements.h) */
#endif