www.pudn.com > jm74.zip > defines.h

 
/*! 
 ************************************************************************** 
 * \file defines.h 
 * 
 * \brief 
 *    Headerfile containing some useful global definitions 
 * 
 * \author 
 *    Detlev Marpe   
 *    Copyright (C) 2000 HEINRICH HERTZ INSTITUTE All Rights Reserved. 
 * 
 * \date 
 *    21. March 2001 
 ************************************************************************** 
 */ 
 
#ifndef _DEFINES_H_ 
#define _DEFINES_H_ 
 
#if defined _DEBUG 
#define TRACE           0                   //!< 0:Trace off 1:Trace on 
#else 
#define TRACE           0                   //!< 0:Trace off 1:Trace on 
#endif 
 
#define LIST_0 0 
#define LIST_1 1 
 
// CAVLC 
#define LUMA              0 
#define LUMA_INTRA16x16DC 1 
#define LUMA_INTRA16x16AC 2 
 
#define TOTRUN_NUM    15 
#define RUNBEFORE_NUM  7 
 
 
//--- block types for CABAC ---- 
#define LUMA_16DC       0 
#define LUMA_16AC       1 
#define LUMA_8x8        2 
#define LUMA_8x4        3 
#define LUMA_4x8        4 
#define LUMA_4x4        5 
#define CHROMA_DC       6 
#define CHROMA_AC       7 
#define NUM_BLOCK_TYPES 8 
 
 
#define MAX_CODED_FRAME_SIZE 800000         //!< bytes for one frame 
 
// #define _LEAKYBUCKET_ 
 
#define absm(A) ((A)<(0) ? (-(A)):(A))      //!< abs macro, faster than procedure 
 
#define Clip1(a)            ((a)>255?255:((a)<0?0:(a))) 
#define Clip3(min,max,val) (((val)<(min))?(min):(((val)>(max))?(max):(val))) 
 
#define P8x8    8 
#define I4MB    9 
#define I16MB   10 
#define IBLOCK  11 
#define SI4MB   12 
#define MAXMODE 13 
#define IPCM    14 
 
#define IS_INTRA(MB)    ((MB)->mb_type==I4MB  || (MB)->mb_type==I16MB ||(MB)->mb_type==IPCM) 
#define IS_NEWINTRA(MB) ((MB)->mb_type==I16MB  || (MB)->mb_type==IPCM) 
 
#define IS_OLDINTRA(MB) ((MB)->mb_type==I4MB) 
#define IS_INTER(MB)    ((MB)->mb_type!=I4MB  && (MB)->mb_type!=I16MB  && (MB)->mb_type!=IPCM) 
#define IS_INTERMV(MB)  ((MB)->mb_type!=I4MB  && (MB)->mb_type!=I16MB  && (MB)->mb_type!=0 && (MB)->mb_type!=IPCM) 
#define IS_DIRECT(MB)   ((MB)->mb_type==0     && (img->type==B_SLICE )) 
#define IS_COPY(MB)     ((MB)->mb_type==0     && (img->type==P_SLICE || img->type==SP_SLICE)) 
#define IS_P8x8(MB)     ((MB)->mb_type==P8x8) 
 
 
// Quantization parameter range 
 
#define MIN_QP          0 
#define MAX_QP          51 
 
#define BLOCK_SIZE      4 
#define MB_BLOCK_SIZE   16 
 
 
#define NO_INTRA_PMODE  9        //!< #intra prediction modes 
/* 4x4 intra prediction modes */ 
#define VERT_PRED             0 
#define HOR_PRED              1 
#define DC_PRED               2 
#define DIAG_DOWN_LEFT_PRED   3 
#define DIAG_DOWN_RIGHT_PRED  4 
#define VERT_RIGHT_PRED       5 
#define HOR_DOWN_PRED         6 
#define VERT_LEFT_PRED        7 
#define HOR_UP_PRED           8 
 
// 16x16 intra prediction modes 
#define VERT_PRED_16    0 
#define HOR_PRED_16     1 
#define DC_PRED_16      2 
#define PLANE_16        3 
 
// 8x8 chroma intra prediction modes 
#define DC_PRED_8       0 
#define HOR_PRED_8      1 
#define VERT_PRED_8     2 
#define PLANE_8         3 
 
#define EOS             1                       //!< End Of Sequence 
#define SOP             2                       //!< Start Of Picture 
#define SOS             3                       //!< Start Of Slice 
 
#define DECODING_OK     0 
#define SEARCH_SYNC     1 
#define PICTURE_DECODED 2 
 
#define MAX_REFERENCE_PICTURES 32               //!< H264 allows 32 fields 
 
#define INVALIDINDEX  (-135792468) 
 
#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 MVPRED_MEDIAN   0 
#define MVPRED_L        1 
#define MVPRED_U        2 
#define MVPRED_UR       3 
 
#define DECODE_COPY_MB  0 
#define DECODE_MB       1 
//#define DECODE_MB_BFRAME 2 
 
#define BLOCK_MULTIPLE      (MB_BLOCK_SIZE/BLOCK_SIZE) 
 
//Start code and Emulation Prevention need this to be defined in identical manner at encoder and decoder 
#define ZEROBYTES_SHORTSTARTCODE 2 //indicates the number of zero bytes in the short start-code prefix 
 
#endif