#ifndef _DEFINE_H
#define _DEFINE_H

#define pel_t float

#define FALSE  0
#define TRUE   1

#define OFF    0
#define ON     1

#define _QCIF_ 0
#define _CIF_  1

#define _Y_    0
#define _U_    1
#define _V_    2

#define _R_    0
#define _G_    1
#define _B_    2

#define _DX_   0
#define _DY_   1

/* various sizes */
#define _DCT_SIZE_          8
#define _BLOCK_SIZE_        8
#define _MB_SIZE_          16
#define _GOB_WIDTH_        11
#define _NUM_MB_           33
#define _NUM_CIF_GOB_      12
#define _NUM_QCIF_GOB_      5
#define _NUM_PIC_PROP_      6
#define _NUM_MB_PROP_       3

/* options */
#define MOTIONEST_FULL      0
#define MOTIONEST_HVMIN     1
#define QUANT_BASIC         0
#define QUANT_THRESH        1

/* motion est */
#define MOT_EST_LO_RANGE   (-15)
#define MOT_EST_HI_RANGE    15
#define MOT_EST_RANGE       (MOT_EST_HI_RANGE - MOT_EST_LO_RANGE)

/* used for MTYPE */
#define INTRA                           0
#define INTER                           1
#define INTRA_MQUANT                    1
#define INTER_TCOEFF                    2
#define INTER_MQUANT_TCOEFF             3
#define INTER_MC_MVD                    4
#define INTER_MC_MVD_TCOEFF             5
#define INTER_MC_MQUANT_MVD_TCOEFF      6
#define INTER_MC_FIL_MVD                7
#define INTER_MC_FIL_MVD_TCOEFF         8
#define INTER_MC_FIL_MQUANT_MVD_TCOEFF  9

/* used for transmission buffer */
#define BUFFER_DATA_WIDTH    492
#define BUFFER_PARITY_WIDTH   18
#define BUFFER_FRAME_WIDTH   (1+1+BUFFER_DATA_WIDTH+BUFFER_PARITY_WIDTH)

/* references to the VLC tables */
#define MBA_CODE     0
#define MTYPE_CODE   1
#define MVD_CODE     2
#define CBP_CODE     3
#define TCOEFF_CODE  4

/* PIC properties */
#define SPLIT_SCREEN 0
#define DOC_CAM      1
#define FREEZE_PIC   2
#define FORMAT       3
#define STILL_IMAGE  4
#define SPARE        5

/* MB properties */
#define MODE         0
#define MC_PRESENT   1
#define FIL_PRESENT  2

/* entropy encoding */
#define EOB                27
#define ESCAPE             28
#define MBA_STUFFING_IND   34
#define GOB_START_CODE_IND 35
#define MBA_STUFFING_LEN   11

/* other useful defines */
#define INTRA_DC_QSTEPSIZE  8

/* used within huffman tree for entropy decoding */
typedef class node{
 public:
  node(void);
  unsigned char info[2];
  struct node *left,*right;//left=1, right=0
}*nodep;

/* VLC and FLC tables and values for entropy encoding/decoding */
extern const char PIC_STARTCODE[21];
extern const char MBA[35][17];
extern const char MTYPE[10][11];
extern const char MVD[32][12];
extern const char CBP[63][10];
extern const char TCOEFF[28][15][15];
extern const char BUFFER_S[9];

/* various constants */
class dimensions_t{
 public:
  void init(int format);
  int width[3],height[3];
};
extern const int order[64][2]; /* holds order to send tcoeffs */
extern class dimensions_t DIM;

/* global functions */
extern long abs(long i);
extern int sign(int i);
extern pel_t clip(pel_t num,int min,int max);

#endif /* DEFINE_H */