sim.h

H.263的压缩算法

/************************************************************************
 *
 *  sim.h, part of (TMN encoder)
 *
 *  Copyright (C) 1997  University of BC, Canada
 *
 *  Contacts: 
 *  Michael Gallant                   <[e-mail]>
 *  Guy Cote                          <[e-mail]>
 *  Berna Erol                        <[e-mail]>
 *
 *  UBC Image Processing Laboratory   http://www.ee.ubc.ca/image
 *  2356 Main Mall                    tel.: [phone]
 *  Vancouver BC Canada V6T1Z4        fax.: [phone]
 *
 *  Copyright (C) 1995, 1996  Telenor R&D, Norway
 *  
 *  Contacts: 
 *  Robert Danielsen                  <[e-mail]>
 *
 *  Telenor Research and Development  http://www.nta.no/brukere/DVC/
 *  P.O.Box 83                        tel.:   [phone]
 *  N-2007 Kjeller, Norway            fax.:   [phone]
 *
 ************************************************************************/

/*
 * Disclaimer of Warranty
 *
 * These software programs are available to the user without any
 * license fee or royalty on an "as is" basis. The University of
 * British Columbia 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 University of British Columbia does not represent or warrant
 * that the programs furnished hereunder are free of infringement of
 * any third-party patents.
 *
 * Commercial implementations of H.263, 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.
 *
*/

/**********************************************************************
 *
 * Headerfile for TMN coder
 * Type definitions and declaration of functions 
 * Date last modified: every now and then
 *
 **********************************************************************/

/* If you are not using the included Makefile, or want to override
   the Makefile, you can uncomment one or more of the defines 
   below instead */
/* #define PRINTMV */
/* to print MVs to stdout while coding. */
/* #define PRINTQ */
/* #define PRINTBLOCKS */
/* to print Blocks in advanced intra coding while coding */
/* to print the quantizer used during coding */
/* #define FASTIDCT */
/* for a fast single precision IDCT. */
/* #define QCIF */
/* to change the coding format uncommment the above line and change to
   SQCIF, QCIF, CIF, CIF4, or CIF16 */
/* #define RESTRICTED_MQ */ 
/* restrict dquant so that when the modified quantization mode is on, quant only us
es 2 bits*/
#define FULLSEARCH
/* to use the full search motion estimation */

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<limits.h>
#include "config.h"
#include"macros.h"

/* This should not be changed */
#define MB_SIZE 16
#define BLOCK_SIZE 8
#define BLOCKS_MB 6

/* If someone forgets to define a coding format, QCIF is default */
/*#if (!defined SQCIF && !defined QCIF && !defined CIF && !defined CIF4 && !defined CIF16)
#define QCIF
#endif*/

/* The coding format is decided here. */
/*$#ifdef SQCIF
#define DEF_PELS 128
#define DEF_LINES 96
#endif
#ifdef QCIF
#define DEF_PELS 176
#define DEF_LINES 144
#endif
#ifdef CIF
#define DEF_PELS 352
#define DEF_LINES 288
#endif
#ifdef CIF4
#define DEF_PELS 704
#define DEF_LINES 576
#endif
#ifdef CIF16
#define DEF_PELS 1408
#define DEF_LINES 1152
#endif$*/

/*$#define MBC   DEF_PELS/MB_SIZE
#define MBR   DEF_LINES/MB_SIZE$*/
#define MBC   88
#define MBR   72

/* Parameters from TMN */
#define PREF_NULL_VEC 100
#define PREF_16_VEC 200
#define PREF_PBDELTA_NULL_VEC 50

int headerlength; /* Global variables */
int pels, enhancement_pels, base_pels;
int cpels;
int lines, enhancement_lines, base_lines;
int trace;
int adv_pred;
int use_4mv;
int overlapping_MC;
int syntax_arith_coding;
int pb_frames;
int improved_pb_frames;
int mv_outside_frame;
int long_vectors;
float target_framerate;
FILE *tf;
int force_intra;

/* new variables for H.263+ modes */
int advanced_intra_coding;
int deblocking_filter;
int slice_structure;

/* Reference Picture Selection mode variables */
int number_of_threads;
int frames_per_thread;
int sync_gobs_per_frame;

int independent_segment_decoding;
int alternative_inter_vlc;
int modified_quantization;
int scalability_mode;
int i_picture_quant;
int p_picture_quant;
int b_picture_quant;
int enhancement_layer_quant;
int reference_picture_resampling;
int reduced_resolution_update;
int successive_B_frames;
int b_picture_quant;
int TRP;
int rate_control_method;
int coded_map[MBR+1][MBC+1];
/* coded_map = 0 -> not coded   *
 * coded_map = 1 -> inter coded *
 * coded_map = 2 -> intra coded */
int quant_map[MBR+1][MBC+1];
int intra_refresh[MBR+1][MBC+1];
int intra_mb_refresh;
/* intra_refresh keeps a counter of the 
 * intra refresh for every macroblocks */
int unlimited_unrestricted_motion_vectors;

int EPTYPE;
int CommBacklog;  /* Rate control buffer */

#define PSC        1
#define PSC_LENGTH        17

#define ESCAPE                          7167

#define PCT_INTRA                       0
#define PCT_INTER                       1
#define PCT_IPB                         2
#define PCT_B                           3
#define PCT_EI                          4
#define PCT_EP                          5
#define PCT_PB                          6

#define ON                              1
#define OFF                             0

/* estimation types. */
#define P_PICTURE_ESTIMATION            0
#define PB_PICTURE_ESTIMATION           1
#define B_PICTURE_ESTIMATION            2
#define EI_EP_PICTURE_ESTIMATION        3

#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 SF_CUSTOM                       6  /* 110 */
#define SF_EPTYPE                       7  /* 111 Extended PTYPE */

/* PB frames modes */
#define PB_FRAMES                       1
#define IM_PB_FRAMES                    2

/* Prediction modes for PB-frames */
#define FORWARD_PREDICTION              0
#define BACKWARD_PREDICTION             1
#define BIDIRECTIONAL_PREDICTION        2
#define DIRECT_PREDICTION               3
#define UPWARD_PREDICTION               4
#define INTRA_PREDICTION                5

/* Prediction modes for True B-pictures. */
#define B_DIRECT_PREDICTION               0
#define B_FORWARD_PREDICTION              1
#define B_BACKWARD_PREDICTION             2
#define B_BIDIRECTIONAL_PREDICTION        3
#define B_INTRA_PREDICTION                4

#define EP_FORWARD_PREDICTION             0
#define EP_UPWARD_PREDICTION              1
#define EP_BIDIRECTIONAL_PREDICTION       2
#define EP_INTRA_PREDICTION               3

#define EI_UPWARD_PREDICTION              0
#define EI_INTRA_PREDICTION               1

/* Pixel aspect ration for custom source format */
#define PAR_0                           0  /* 0000 */
#define PAR_SQUARE                      1  /* 0001 */
#define PAR_CIF                         2  /* 0010 */
#define PAR_525                         3  /* 0011 */
#define PAR_CIF_STRETCHED               4  /* 0100 */
#define PAR_525_STRETCHED               5  /* 0101 */
#define PAR_EXTENDED                    15 /* 1111 */

#define CCC_1000                        0  /* clock conversion code */
#define CCC_1001                        1

/* Mode flags of reference picture selection */

#define NO_ACK_NACK                     4 /* neither ACK nor NACK needed */