/***************************************************************** * tmn (TMN encoder)  * Copyright (C) 1995 Telenor R&D *                    Karl Olav Lillevold <kol@nta.no>                     * * *****************************************************************//********************************************************************** * * Headerfile for TMN4 coder * Type definitions and declaration of functions  * Date last modified: every now and then * **********************************************************************/#include <stdio.h>#include <stdlib.h>#include <string.h>#include <limits.h>#include <assert.h>#include "macros.h"#include "libr263.h"/* config parameters */#define YES 1#define NO 0#define DEF_UMV_MODE   NO#define DEF_SAC_MODE   NO#define DEF_ADV_MODE   NO#define DEF_PBF_MODE   NO#define DEF_ORIG_SKIP      0#define DEF_FRAMESKIP      2   /* headerlength on concatenated 4:1:1 YUV input file */#define DEF_HEADERLENGTH   0/* insert sync after each DEF_INSERT_SYNC for increased error robustness * 0 means do not insert extra syncs */#define DEF_INSERT_SYNC   0/* Parameters from TMN */#define PREF_NULL_VEC 100#define PREF_16_VEC 200#define PREF_PBDELTA_NULL_VEC 50int headerlength; /* Global variables */int pels;int cpels;int uskip;int vskip;size_t sizeof_frame;int lines;int trace;int advanced;int pb_frames;int mv_outside_frame;int long_vectors;int mbr;int mbc;float target_framerate;FILE *tf;#ifdef PRINT_DEBUGFILE *debugf;#endifint search_p_frames;		/* internal variable for exh/log search */FILE *mv_file;/****************************/#define PSC				1#define PSC_LENGTH			17#define ESCAPE                          7167#define PCT_INTER                       1#define PCT_INTRA                       0#define ON                              1#define OFF                             0#define SF_SQCIF                        1  /* 001 */#define SF_QCIF                         2  /* 010 */#define SF_CIF                          3  /* 011 */#define SF_4CIF                         4  /* 100 */#define SF_16CIF                        5  /* 101 */#define MODE_INTER                      0#define MODE_INTER_Q                    1#define MODE_INTER4V                    2#define MODE_INTRA                      3#define MODE_INTRA_Q                    4#define MODE_SKIP			5 /* Created by Roalt */#define PBMODE_NORMAL                   0#define PBMODE_MVDB                     1#define PBMODE_CBPB_MVDB                2#define NO_VEC                          999/* added by Roalt */#define DEF_SPIRAL_SEARCH		0#define DEF_LOGARITHMIC_SEARCH		1#define DEF_WRITE_TRACE   NO#ifndef FALSE#define FALSE (0)#endif#ifndef TRUE#define TRUE (1)#endif/* Global variable */WriteByte WriteByteFunction;/* Motionvector structure */typedef struct motionvector {  int x;			/* Horizontal comp. of mv 	 */  int y;			/* Vertical comp. of mv 	 */  int x_half;			/* Horizontal half-pel acc.	 */  int y_half;			/* Vertical half-pel acc.	 */  int min_error;		/* Min error for this vector	 */  int Mode;                     /* Necessary for adv. pred. mode */} MotionVector;/* Point structure */typedef struct point {  int x;  int y;} Point;/* Structure with image data */typedef struct pict_image {  unsigned int *lum;		/* Luminance plane		*/  unsigned int *Cr;		/* Cr plane			*/  unsigned int *Cb;		/* Cb plane			*/} PictImage;/* Group of pictures structure. *//* Picture structure */typedef struct pict {  int prev;   int curr;  int TR;             /* Time reference */  int source_format;  int picture_coding_type;  int spare;  int unrestricted_mv_mode;  int PB;  int QUANT;  int DQUANT;  int MB;  int seek_dist;        /* Motion vector search window */  int use_gobsync;      /* flag for gob_sync */  int MODB;             /* B-frame mode */  int BQUANT;           /* which quantizer to use for B-MBs in PB-frame */  int TRB;              /* Time reference for B-picture */  int frame_inc;        /* buffer control frame_inc */  float QP_mean;        /* mean quantizer */} Pict;Pict *pic;/* Slice structure */typedef struct slice {  unsigned int vert_pos;	/* Vertical position of slice 	*/  unsigned int quant_scale;	/* Quantization scale		*/} Slice;/* Macroblock structure */typedef struct macroblock {  int mb_address;		/* Macroblock address 		*/  int macroblock_type;		/* Macroblock type 		*/  int skipped;			/* 1 if skipped			*/  MotionVector motion;	        /* Motion Vector 		*/} Macroblock;/* Structure for macroblock data */typedef struct mb_structure {  int lum[16][16];  int Cr[8][8];  int Cb[8][8];} MB_Structure;/* Structure for average results and virtal buffer data */typedef struct results {  float SNR_l;			/* SNR for luminance */  float SNR_Cr;			/* SNR for chrominance */  float SNR_Cb;  float QP_mean;                /* Mean quantizer */} Results;/* Internal prototypes *//* stream.c prototypes */void mwinit(void);void mwcloseinit(void);/* mot_est.c prototypes */void FindMB(int x, int y, unsigned int *image, unsigned int MB[16][16]);void FullMotionEstimation(unsigned int *curr, unsigned int *prev_ipol, 		     int seek_dist, MotionVector *current_MV, int x_curr, 		     int y_curr);int SAD_HalfPixelMacroblock(unsigned int *ii,			    unsigned int *curr,			    int pixels_on_line, int Min_SAD);int SAD_HalfPixelMacroblock2(unsigned int *ii,			    unsigned int *curr,			    int pixels_on_line, int Min_SAD);unsigned int *LoadArea(unsigned int *im, int x, int y, 			int x_size, int y_size, int lx);/* pred.c prototypes */MB_Structure *Predict_P(unsigned int *curr_image, unsigned int *prev_image,			unsigned int *prev_ipol, int x, int y, 			MotionVector *MV_ptr);void DoPredChrom_P(int x_curr, int y_curr, int dx, int dy,		   unsigned int *curr, unsigned int *prev, 		   MB_Structure *pred_error);void FindPred(int x, int y, MotionVector *fr, unsigned int *prev, 	      int *pred); MB_Structure *MB_Recon_P(unsigned int *prev_image, unsigned int *prev_ipol,			 MB_Structure *diff, int x_curr, int y_curr, 			 MotionVector *MV_ptr);void ReconLumBlock_P(int x, int y, MotionVector *fr,		     unsigned int *prev, int *data);void ReconChromBlock_P(int x_curr, int y_curr, int dx, int dy,		       unsigned int *prev, MB_Structure *data);void FindChromBlock_P(int x_curr, int y_curr, int dx, int dy,		       unsigned int *prev, MB_Structure *data);int ChooseMode(unsigned int *curr, int x_pos, int y_pos, int min_SAD);/* countbit.c prototypes */void ZeroBits(Bits *bits);void ZeroRes(Results *res);int FindCBP(int *qcoeff, int Mode, int ncoeffs);void CountBitsVectors(MotionVector *MV_ptr, Bits *bits, 		      int x, int y, int Mode, int newgob, Pict *pic);void FindPMV(MotionVector *MV_ptr, int x, int y, 	     int *p0, int *p1, int block, int newgob, int half_pel);void CountBitsCoeff(int *qcoeff, int I, int CBP, Bits *bits, int ncoeffs);int CodeCoeff(int Mode, int *qcoeff, int block, int ncoeffs);int CountBitsPicture(Pict *pic);void AddBitsPicture(Bits *bits);void CountBitsMB(int Mode, int COD, int CBP, int CBPB, Pict *pic, Bits *bits);int CountBitsSlice(int slice, int quant);void ZeroVec(MotionVector *MV);void MarkVec(MotionVector *MV);void CopyVec(MotionVector *MV1, MotionVector *MV2);int EqualVec(MotionVector *MV2, MotionVector *MV1);/* coder.c prototypes */void ZeroMBlock(MB_Structure *data);void CodeIntraH263(CParam *params, Bits *bits);void CodeInterH263(CParam *params, Bits *bits);__inline__ void Clip(MB_Structure *data);int *MB_EncodeAndFindCBP(MB_Structure *mb_orig, int QP, int I, int *CBP);int MB_Decode(int *qcoeff, MB_Structure *mb_recon, int QP, int I);void FullMotionEstimatePicture(unsigned int *curr, unsigned int *prev, 			       unsigned int *prev_ipol, int seek_dist, 			       MotionVector *MV_ptr,			       int advanced_method,			       int *EncodeThisBlock);void ReconCopyImage(int i, int j, unsigned int *recon, unsigned int *prev_recon);void ReconImage (int i, int j, MB_Structure *data, unsigned int *recon);void InterpolateImage(unsigned int *image,			       unsigned int *ipol_image, 			       int w, int h);void FillLumBlock( int x, int y, unsigned int *image, MB_Structure *data);void FillChromBlock(int x_curr, int y_curr, unsigned int *image,		    MB_Structure *data);/* quant.c prototypes */void Dequant(int *qcoeff, int *rcoeff, int QP, int I);int QuantAndFindCBP(int *coeff, int *qcoeff, int QP, int I, int CBP_Mask);/* dct.c prototypes */int Dct( int *block, int *coeff);int idct(int *coeff,int *block);#ifndef FASTIDCT/* global declarations for idctref */void init_idctref (void);void idctref (int *coeff, int *block);#endif#ifdef VERYFASTIDCTvoid init_idct(void);#endif/* Fix broken header-files on suns to avoid compiler warnings *//* #define BROKEN_SUN_HEADERS here or in Makefile */#ifdef BROKEN_SUN_HEADERSextern int printf();extern int fprintf();extern int time();extern int fclose();extern int rewind();extern int fseek();extern int fread();extern int fwrite();extern int fflush();extern int fscanf();extern int _flsbuf();extern int _filbuf();#endif