mpeg2enc/global.h

   1 /* global.h, global variables, function prototypes                          */
   2
   3 /* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */
   4
   5 /*
   6  * Disclaimer of Warranty
   7  *
   8  * These software programs are available to the user without any license fee or
   9  * royalty on an "as is" basis.  The MPEG Software Simulation Group disclaims
  10  * any and all warranties, whether express, implied, or statuary, including any
  11  * implied warranties or merchantability or of fitness for a particular
  12  * purpose.  In no event shall the copyright-holder be liable for any
  13  * incidental, punitive, or consequential damages of any kind whatsoever
  14  * arising from the use of these programs.
  15  *
  16  * This disclaimer of warranty extends to the user of these programs and user's
  17  * customers, employees, agents, transferees, successors, and assigns.
  18  *
  19  * The MPEG Software Simulation Group does not represent or warrant that the
  20  * programs furnished hereunder are free of infringement of any third-party
  21  * patents.
  22  *
  23  * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,
  24  * are subject to royalty fees to patent holders.  Many of these patents are
  25  * general enough such that they are unavoidable regardless of implementation
  26  * design.
  27  *
  28  */
  29
  30 #include "libmpeg3.h"
  31 #include "mpeg2enc.h"
  32 #include "quicktime.h"
  33
  34 #include <pthread.h>
  35 #include <stdint.h>
  36
  37 /* choose between declaration (GLOBAL_ undefined)
  38  * and definition (GLOBAL_ defined)
  39  * GLOBAL_ is defined in exactly one file (mpeg2enc.c)
  40  */
  41
  42 #ifndef GLOBAL_
  43 #define EXTERN_ extern
  44 #else
  45 #define EXTERN_
  46 #endif
  47
  48 /* global variables */
  49
  50
  51 /* zig-zag scan */
  52 EXTERN_ unsigned char mpeg2_zig_zag_scan[64]
  53 #ifdef GLOBAL_
  54 =
  55 {
  56   0,1,8,16,9,2,3,10,17,24,32,25,18,11,4,5,
  57   12,19,26,33,40,48,41,34,27,20,13,6,7,14,21,28,
  58   35,42,49,56,57,50,43,36,29,22,15,23,30,37,44,51,
  59   58,59,52,45,38,31,39,46,53,60,61,54,47,55,62,63
  60 }
  61 #endif
  62 ;
  63
  64 /* alternate scan */
  65 EXTERN_ unsigned char alternate_scan_hv[64]
  66 #ifdef GLOBAL_
  67 =
  68 {
  69   0,8,16,24,1,9,2,10,17,25,32,40,48,56,57,49,
  70   41,33,26,18,3,11,4,12,19,27,34,42,50,58,35,43,
  71   51,59,20,28,5,13,6,14,21,29,36,44,52,60,37,45,
  72   53,61,22,30,7,15,23,31,38,46,54,62,39,47,55,63
  73 }
  74 #endif
  75 ;
  76
  77 /* default intra quantization matrix */
  78 EXTERN_ uint16_t default_intra_quantizer_matrix_hv[64]
  79 #ifdef GLOBAL_
  80 =
  81 {
  82    8, 16, 19, 22, 26, 27, 29, 34,
  83   16, 16, 22, 24, 27, 29, 34, 37,
  84   19, 22, 26, 27, 29, 34, 34, 38,
  85   22, 22, 26, 27, 29, 34, 37, 40,
  86   22, 26, 27, 29, 32, 35, 40, 48,
  87   26, 27, 29, 32, 35, 40, 48, 58,
  88   26, 27, 29, 34, 38, 46, 56, 69,
  89   27, 29, 35, 38, 46, 56, 69, 83
  90 }
  91 #endif
  92 ;
  93
  94 EXTERN_ uint16_t hires_intra_quantizer_matrix_hv[64]
  95 #ifdef GLOBAL_
  96 =
  97 {
  98    8, 16, 18, 20, 24, 25, 26, 30,
  99   16, 16, 20, 23, 25, 26, 30, 30,
 100   18, 20, 22, 24, 26, 28, 29, 31,
 101   20, 21, 23, 24, 26, 28, 31, 31,
 102   21, 23, 24, 25, 28, 30, 30, 33,
 103   23, 24, 25, 28, 30, 30, 33, 36,
 104   24, 25, 26, 29, 29, 31, 34, 38,
 105   25, 26, 28, 29, 31, 34, 38, 42
 106 }
 107 #endif
 108 ;
 109
 110 /* Our default non intra quantization matrix
 111         This is *not* the MPEG default
 112          */
 113 EXTERN_ uint16_t default_nonintra_quantizer_matrix_hv[64]
 114 #ifdef GLOBAL_
 115 =
 116
 117 {
 118   16, 17, 18, 19, 20, 21, 22, 23,
 119   17, 18, 19, 20, 21, 22, 23, 24,
 120   18, 19, 20, 21, 22, 23, 24, 25,
 121   19, 20, 21, 22, 23, 24, 26, 27,
 122   20, 21, 22, 23, 25, 26, 27, 28,
 123   21, 22, 23, 24, 26, 27, 28, 30,
 124   22, 23, 24, 26, 27, 28, 30, 31,
 125   23, 24, 25, 27, 28, 30, 31, 33
 126
 127 }
 128 #endif
 129 ;
 130
 131 /* Hires non intra quantization matrix.  THis *is*
 132         the MPEG default...      */
 133 EXTERN_ uint16_t hires_nonintra_quantizer_matrix_hv[64]
 134 #ifdef GLOBAL_
 135 =
 136 {
 137         16, 16, 16, 16, 16, 16, 16, 16,
 138         16, 16, 16, 16, 16, 16, 16, 16,
 139         16, 16, 16, 16, 16, 16, 16, 16,
 140         16, 16, 16, 16, 16, 16, 16, 16,
 141         16, 16, 16, 16, 16, 16, 16, 16,
 142         16, 16, 16, 16, 16, 16, 16, 16,
 143         16, 16, 16, 16, 16, 16, 16, 16,
 144         16, 16, 16, 16, 16, 16, 16, 16
 145 }
 146 #endif
 147 ;
 148
 149 /* non-linear quantization coefficient table */
 150 EXTERN_ unsigned char non_linear_mquant_table_hv[32]
 151 #ifdef GLOBAL_
 152 =
 153 {
 154    0, 1, 2, 3, 4, 5, 6, 7,
 155    8,10,12,14,16,18,20,22,
 156   24,28,32,36,40,44,48,52,
 157   56,64,72,80,88,96,104,112
 158 }
 159 #endif
 160 ;
 161
 162 /* non-linear mquant table for mapping from scale to code
 163  * since reconstruction levels are not bijective with the index map,
 164  * it is up to the designer to determine most of the quantization levels
 165  */
 166
 167 EXTERN_ unsigned char map_non_linear_mquant_hv[113]
 168 #ifdef GLOBAL_
 169 =
 170 {
 171 0,1,2,3,4,5,6,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,
 172 16,17,17,17,18,18,18,18,19,19,19,19,20,20,20,20,21,21,21,21,22,22,
 173 22,22,23,23,23,23,24,24,24,24,24,24,24,25,25,25,25,25,25,25,26,26,
 174 26,26,26,26,26,26,27,27,27,27,27,27,27,27,28,28,28,28,28,28,28,29,
 175 29,29,29,29,29,29,29,29,29,30,30,30,30,30,30,30,31,31,31,31,31
 176 }
 177 #endif
 178 ;
 179
 180 struct mc_result
 181 {
 182         uint16_t weight;
 183         int8_t x;
 184         int8_t y;
 185 };
 186
 187 typedef struct mc_result mc_result_s;
 188
 189 typedef struct motion_comp
 190 {
 191         uint8_t **oldorg, **neworg;
 192         uint8_t **oldref, **newref;
 193         uint8_t **cur, **curref;
 194         int sxf, syf, sxb, syb;
 195 } motion_comp_s;
 196
 197 typedef struct mbinfo mbinfo_s;
 198
 199 typedef struct pict_data
 200 {
 201
 202         /* picture structure (header) data */
 203
 204         int temp_ref; /* temporal reference */
 205         int pict_type; /* picture coding type (I, P or B) */
 206         int vbv_delay; /* video buffering verifier delay (1/90000 seconds) */
 207         int forw_hor_f_code, forw_vert_f_code;
 208         int back_hor_f_code, back_vert_f_code; /* motion vector ranges */
 209         int dc_prec;                            /* DC coefficient prec for intra blocks */
 210         int pict_struct;                        /* picture structure (frame, top / bottom) */
 211         int topfirst;                           /* display top field first */
 212         int frame_pred_dct;                     /* Use only frame prediction... */
 213         int intravlc;                           /* Intra VLC format */
 214         int q_scale_type;                       /* Quantiser scale... */
 215         int altscan;                            /* Alternate scan  */
 216         int repeatfirst;                        /* repeat first field after second field */
 217         int prog_frame;                         /* progressive frame */
 218
 219         /* 8*8 block data, raw (unquantised) and quantised, and (eventually but
 220            not yet inverse quantised */
 221         int16_t (*blocks)[64];
 222         int16_t (*qblocks)[64];
 223
 224         unsigned char **curorg, **curref;
 225         /* macroblock side information array */
 226         mbinfo_s *mbinfo;
 227         /* motion estimation parameters */
 228 } pict_data_s;
 229
 230 typedef struct
 231 {
 232         int start_row, end_row;
 233         pthread_mutex_t input_lock, output_lock;
 234         pthread_t tid;   /* ID of thread */
 235         int done;
 236
 237         motion_comp_s *motion_comp;
 238         pict_data_s *pict_data;
 239         int secondfield;
 240         int ipflag;
 241
 242 #define MAX_44_MATCHES (256*256/(4*4))
 243         int sub22_num_mcomps;
 244         int sub44_num_mcomps;
 245         mc_result_s sub44_mcomps[MAX_44_MATCHES];
 246         mc_result_s sub22_mcomps[MAX_44_MATCHES*4];
 247 } motion_engine_t;
 248
 249 #if 0
 250 typedef struct
 251 {
 252   pthread_mutex_t ratectl_lock;
 253
 254   double R, T, d;
 255   double actsum;
 256   int Np, Nb;
 257   double S, Q;
 258   int prev_mquant;
 259   double bitcnt_EOP;
 260   double next_ip_delay; /* due to frame reordering delay */
 261   double decoding_time;
 262   int Xi, Xp, Xb, r, d0i, d0p, d0b;
 263   double avg_act;
 264 } ratectl_t;
 265 #endif
 266
 267 typedef struct
 268 {
 269 /*
 270  *   bitcnt_EOP = 0.0;
 271  *   next_ip_delay = 0.0;
 272  *   decoding_time = 0.0;
 273  *   P =                                          0;  // P distance between complete intra slice refresh
 274  *   r =                                          0;  // r (reaction parameter)
 275  *   avg_act =                            0;  // avg_act (initial average activity)
 276  *   Xi =                                         0;  // Xi (initial I frame global complexity measure)
 277  *   Xp =                                         0;  // Xp (initial P frame global complexity measure)
 278  *   Xb =                                         0;  // Xb (initial B frame global complexity measure)
 279  *   d0i =                                0;  // d0i (initial I frame virtual buffer fullness)
 280  *   d0p =                                0;  // d0p (initial P frame virtual buffer fullness)
 281  *   d0b =                                0;  // d0b (initial B frame virtual buffer fullness)
 282  */
 283   pthread_mutex_t ratectl_lock;
 284
 285   double Xi, Xp, Xb;
 286   int r;
 287   int d0i, d0pb;
 288   double R;
 289   int d;
 290   double T;
 291   int CarryR;
 292   int CarryRLim;
 293
 294 /* bitcnt_EOP - Position in generated bit-stream for latest
 295                         end-of-picture Comparing these values with the
 296                         bit-stream position for when the picture is due to be
 297                         displayed allows us to see what the vbv buffer is up
 298                         to.
 299
 300    gop_undershoot - If we *undershoot* our bit target the vbv buffer
 301                                 calculations based on the actual length of the
 302                                 bitstream will be wrong because in the final system
 303                                 stream these bits will be padded away.  I.e. frames
 304                                 *won't* arrive as early as the length of the video
 305                                 stream would suggest they would.  To get it right we
 306                                 have to keep track of the bits that would appear in
 307                                 padding.
 308
 309
 310 */
 311
 312   int64_t bitcnt_EOP;
 313   int gop_undershoot;
 314
 315 /*
 316   actsum - Total activity (sum block variances) in frame
 317   actcovered - Activity macroblocks so far quantised (used to
 318                          fine tune quantisation to avoid starving highly
 319                    active blocks appearing late in frame...) UNUSED
 320   avg_act - Current average activity...
 321 */
 322   double actsum;
 323   double actcovered;
 324   double sum_avg_act;
 325   double avg_act;
 326   double peak_act;
 327
 328   int Np, Nb;
 329   int64_t S;
 330   double IR;
 331
 332 /* Note: eventually we may wish to tweak these to suit image content */
 333   double Ki;    /* Down-scaling of I/B/P-frame complexity */
 334   double Kb;    /* relative to others in bit-allocation   */
 335   double Kp;    /* calculations.  We only need 2 but have all
 336                                                    3 for readability */
 337
 338   int min_d,max_d;
 339   int min_q, max_q;
 340
 341 /* TODO EXPERIMENT */
 342   double avg_KI;  /* TODO: These values empirically determined            */
 343   double avg_KB;   /* for MPEG-1, may need tuning for MPEG-2   */
 344   double avg_KP;
 345 #define K_AVG_WINDOW_I 4.0      /* TODO: MPEG-1, hard-wired settings */
 346 #define K_AVG_WINDOW_P   10.0
 347 #define K_AVG_WINDOW_B   20.0
 348   double bits_per_mb;
 349
 350   double SQ;
 351   double AQ;
 352
 353         double current_quant;
 354         int64_t frame_start;
 355         int64_t frame_end;
 356 } ratectl_t;
 357
 358 typedef struct
 359 {
 360   int start_row, end_row;
 361   pthread_mutex_t input_lock, output_lock;
 362   pthread_t tid;   /* ID of thread */
 363   int done;
 364
 365   pict_data_s *picture;
 366   unsigned char **pred;
 367   unsigned char **cur;
 368 // Temp for MMX
 369   unsigned char temp[128];
 370 } transform_engine_t;
 371
 372 typedef struct
 373 {
 374         int start_row, end_row;
 375         pthread_mutex_t input_lock, output_lock;
 376         pthread_t tid;   /* ID of thread */
 377         int done;
 378
 379         int prev_mquant;
 380
 381 /* prediction values for DCT coefficient (0,0) */
 382         int dc_dct_pred[3];
 383
 384         unsigned char *frame;
 385         unsigned char *slice_buffer;
 386         long slice_size;
 387         long slice_allocated;
 388         pict_data_s *picture;
 389         ratectl_t *ratectl;
 390         unsigned char outbfr;
 391         int outcnt;
 392 } slice_engine_t;
 393
 394 EXTERN_ pthread_mutex_t test_lock;
 395 EXTERN_ motion_engine_t *motion_engines;
 396 EXTERN_ transform_engine_t *transform_engines;
 397 EXTERN_ transform_engine_t *itransform_engines;
 398 EXTERN_ slice_engine_t *slice_engines;
 399 EXTERN_ ratectl_t **ratectl;
 400 EXTERN_ int quiet; /* suppress warnings */
 401
 402
 403
 404
 405 EXTERN_ pict_data_s cur_picture;
 406
 407 /* reconstructed frames */
 408 EXTERN_ unsigned char *newrefframe[3], *oldrefframe[3], *auxframe[3];
 409 /* original frames */
 410 EXTERN_ unsigned char *neworgframe[3], *oldorgframe[3], *auxorgframe[3];
 411 /* prediction of current frame */
 412 EXTERN_ unsigned char *predframe[3];
 413 /* motion estimation parameters */
 414 EXTERN_ struct motion_data *motion_data;
 415
 416 /* SCale factor for fast integer arithmetic routines */
 417 /* Changed this and you *must* change the quantisation routines as they depend on its absolute
 418         value */
 419 #define IQUANT_SCALE_POW2 16
 420 #define IQUANT_SCALE (1<<IQUANT_SCALE_POW2)
 421 #define COEFFSUM_SCALE (1<<16)
 422
 423 /* Orginal intra / non_intra quantization matrices */
 424 EXTERN_ uint16_t intra_q[64], inter_q[64];
 425 EXTERN_ uint16_t i_intra_q[64], i_inter_q[64];
 426
 427 /* Table driven intra / non-intra quantization matrices */
 428 EXTERN_ uint16_t intra_q_tbl[113][64], inter_q_tbl[113][64];
 429 EXTERN_ uint16_t i_intra_q_tbl[113][64], i_inter_q_tbl[113][64];
 430 EXTERN_ float intra_q_tblf[113][64], inter_q_tblf[113][64];
 431 EXTERN_ float i_intra_q_tblf[113][64], i_inter_q_tblf[113][64];
 432
 433 EXTERN_ uint16_t chrom_intra_q[64],chrom_inter_q[64];
 434
 435
 436
 437
 438
 439 /* clipping (=saturation) table */
 440 EXTERN_ unsigned char *clp;
 441
 442 /* name strings */
 443 EXTERN_ char id_string[256], tplorg[256], tplref[256], out_path[256];
 444 EXTERN_ char iqname[256], niqname[256];
 445 EXTERN_ char statname[256];
 446 EXTERN_ char errortext[256];
 447
 448 EXTERN_ FILE *outfile; /* file descriptors */
 449 EXTERN_ FILE *statfile; /* file descriptors */
 450 EXTERN_ int inputtype; /* format of input frames */
 451
 452 /*
 453   How many frames to read ahead (eventually intended to support
 454   scene change based GOP structuring.  READ_LOOK_AHEAD/2 must be
 455   greater than M (otherwise buffers will be overwritten that are
 456   still in use).
 457
 458   It should also be a multiple of 4 due to the way buffers are
 459   filled (in 1/4's).
 460 */
 461
 462 #define READ_LOOK_AHEAD 4
 463 EXTERN_ uint8_t ***frame_buffers;
 464
 465
 466 /* These determine what input format to use */
 467 EXTERN_ quicktime_t *qt_file;
 468 EXTERN_ mpeg3_t *mpeg_file;
 469 EXTERN_ int do_stdin;
 470 EXTERN_ FILE *stdin_fd;
 471
 472
 473 EXTERN_ int do_buffers;
 474 EXTERN_ pthread_mutex_t input_lock;
 475 EXTERN_ pthread_mutex_t output_lock;
 476 EXTERN_ pthread_mutex_t copy_lock;
 477 EXTERN_ char *input_buffer_y;
 478 EXTERN_ char *input_buffer_u;
 479 EXTERN_ char *input_buffer_v;
 480 EXTERN_ int input_buffer_end;
 481
 482
 483 EXTERN_ int verbose;
 484 EXTERN_ quicktime_t *qt_output;
 485 EXTERN_ unsigned char *frame_buffer;
 486 EXTERN_ unsigned char **row_pointers;
 487 EXTERN_ int fixed_mquant;
 488 EXTERN_ double quant_floor;             /* quantisation floor [1..10] (0 for CBR) */
 489 EXTERN_ double act_boost;               /* Quantisation reduction for highly active blocks */
 490 EXTERN_ int use_hires_quant;
 491 EXTERN_ int use_denoise_quant;
 492 /* Number of processors */
 493 EXTERN_ int processors;
 494 EXTERN_ long start_frame, end_frame;    /* Range to encode in source framerate units */
 495 EXTERN_ int seq_header_every_gop;
 496
 497 /* coding model parameters */
 498
 499 EXTERN_ int N; /* number of frames in Group of Pictures */
 500 EXTERN_ int M; /* distance between I/P frames */
 501 EXTERN_ int P; /* intra slice refresh interval */
 502 EXTERN_ int nframes; /* total number of frames to encode */
 503 EXTERN_ long frames_scaled; /* frame count normalized to output frame rate */
 504 EXTERN_ int frame0, tc0; /* number and timecode of first frame */
 505 EXTERN_ int mpeg1; /* ISO/IEC IS 11172-2 sequence */
 506 EXTERN_ int fieldpic; /* use field pictures */
 507
 508 /* sequence specific data (sequence header) */
 509
 510 EXTERN_ int qsubsample_offset,
 511            fsubsample_offset,
 512                rowsums_offset,
 513                colsums_offset;          /* Offset from picture buffer start of sub-sampled data... */
 514 EXTERN_ int mb_per_pict;                        /* Number of macro-blocks in a picture */
 515 EXTERN_ int fast_mc_frac;        /* inverse proportion of fast motion estimates
 516                                                          consider in detail */
 517 EXTERN_ int mc_44_red;                  /* Sub-mean population reduction passes for 4x4 and 2x2 */
 518 EXTERN_ int mc_22_red;                  /* Motion compensation stages                                           */
 519
 520
 521
 522 EXTERN_ int horizontal_size, vertical_size; /* frame size (pels) */
 523 EXTERN_ int width, height; /* encoded frame size (pels) multiples of 16 or 32 */
 524 EXTERN_ int chrom_width, chrom_height, block_count;
 525 EXTERN_ int mb_width, mb_height; /* frame size (macroblocks) */
 526 EXTERN_ int width2, height2, mb_height2, chrom_width2; /* picture size adjusted for interlacing */
 527 EXTERN_ int aspectratio; /* aspect ratio information (pel or display) */
 528 EXTERN_ int frame_rate_code; /* coded value of frame rate */
 529 EXTERN_ int dctsatlim;                  /* Value to saturated DCT coeffs to */
 530 EXTERN_ double frame_rate; /* frames per second */
 531 EXTERN_ double input_frame_rate; /* input frame rate */
 532 EXTERN_ double bit_rate; /* bits per second */
 533 EXTERN_ int video_buffer_size;
 534 EXTERN_ int vbv_buffer_size; /* size of VBV buffer (* 16 kbit) */
 535 EXTERN_ int constrparms; /* constrained parameters flag (MPEG-1 only) */
 536 EXTERN_ int load_iquant, load_niquant; /* use non-default quant. matrices */
 537 EXTERN_ int load_ciquant,load_cniquant;
 538
 539
 540 /* sequence specific data (sequence extension) */
 541
 542 EXTERN_ int profile, level; /* syntax / parameter constraints */
 543 EXTERN_ int prog_seq; /* progressive sequence */
 544 EXTERN_ int chroma_format;
 545 EXTERN_ int low_delay; /* no B pictures, skipped pictures */
 546
 547
 548 /* sequence specific data (sequence display extension) */
 549
 550 EXTERN_ int video_format; /* component, PAL, NTSC, SECAM or MAC */
 551 EXTERN_ int color_primaries; /* source primary chromaticity coordinates */
 552 EXTERN_ int transfer_characteristics; /* opto-electronic transfer char. (gamma) */
 553 EXTERN_ int matrix_coefficients; /* Eg,Eb,Er / Y,Cb,Cr matrix coefficients */
 554 EXTERN_ int display_horizontal_size, display_vertical_size; /* display size */
 555
 556
 557 /* picture specific data (picture coding extension) */
 558 EXTERN_ int opt_dc_prec;
 559 EXTERN_ int opt_prog_frame;
 560 EXTERN_ int opt_repeatfirst;
 561 EXTERN_ int opt_topfirst;
 562
 563 /* use only frame prediction and frame DCT (I,P,B,current) */
 564 EXTERN_ int frame_pred_dct_tab[3];
 565 EXTERN_ int conceal_tab[3]; /* use concealment motion vectors (I,P,B) */
 566 EXTERN_ int qscale_tab[3]; /* linear/non-linear quantizaton table */
 567 EXTERN_ int intravlc_tab[3]; /* intra vlc format (I,P,B,current) */
 568 EXTERN_ int altscan_tab[3]; /* alternate scan (I,P,B,current) */
 569
 570 /* prototypes of global functions */
 571
 572 /* conform.c */
 573 void range_checks _ANSI_ARGS_((void));
 574 void profile_and_level_checks _ANSI_ARGS_(());
 575
 576 /* fdctref.c */
 577 void init_fdct _ANSI_ARGS_((void));
 578
 579 /* idct.c */
 580 void init_idct _ANSI_ARGS_((void));
 581
 582 /* motion.c */
 583 void motion_estimation _ANSI_ARGS_((pict_data_s *picture,
 584         motion_comp_s *mc_data,
 585         int secondfield, int ipflag));
 586
 587 /* mpeg2enc.c */
 588 void error _ANSI_ARGS_((char *text));
 589
 590 /* predict.c */
 591 void predict _ANSI_ARGS_((pict_data_s *picture,
 592                          uint8_t *reff[],
 593                          uint8_t *refb[],
 594                          uint8_t *cur[3],
 595                          int secondfield));
 596
 597 /* putbits.c */
 598 void slice_initbits(slice_engine_t *engine);
 599 void slice_putbits(slice_engine_t *engine, long val, int n);
 600 void slice_alignbits(slice_engine_t *engine);
 601 void slice_finishslice(slice_engine_t *engine);
 602
 603
 604 void mpeg2_initbits _ANSI_ARGS_((void));
 605 void putbits _ANSI_ARGS_((int val, int n));
 606 void alignbits _ANSI_ARGS_((void));
 607 double bitcount _ANSI_ARGS_((void));
 608
 609 /* puthdr.c */
 610 void putseqhdr _ANSI_ARGS_((void));
 611 void putseqext _ANSI_ARGS_((void));
 612 void putseqdispext _ANSI_ARGS_((void));
 613 void putuserdata _ANSI_ARGS_((char *userdata));
 614 void putgophdr _ANSI_ARGS_((int frame, int closed_gop));
 615 void putpicthdr _ANSI_ARGS_((pict_data_s *picture));
 616 void putpictcodext _ANSI_ARGS_((pict_data_s *picture));
 617 void putseqend _ANSI_ARGS_((void));
 618
 619 /* putmpg.c */
 620 void putintrablk _ANSI_ARGS_((slice_engine_t *engine, pict_data_s *picture, short *blk, int cc));
 621 void putnonintrablk _ANSI_ARGS_((slice_engine_t *engine, pict_data_s *picture, short *blk));
 622 void putmv _ANSI_ARGS_((slice_engine_t *engine, int dmv, int f_code));
 623
 624 /* putpic.c */
 625 void putpict _ANSI_ARGS_((pict_data_s *picture));
 626
 627 /* putseq.c */
 628 void putseq _ANSI_ARGS_((void));
 629
 630 /* putvlc.c */
 631 void putDClum _ANSI_ARGS_((slice_engine_t *engine, int val));
 632 void putDCchrom _ANSI_ARGS_((slice_engine_t *engine, int val));
 633 void putACfirst _ANSI_ARGS_((slice_engine_t *engine, int run, int val));
 634 void putAC _ANSI_ARGS_((slice_engine_t *engine, int run, int signed_level, int vlcformat));
 635 void putaddrinc _ANSI_ARGS_((slice_engine_t *engine, int addrinc));
 636 void putmbtype _ANSI_ARGS_((slice_engine_t *engine, int pict_type, int mb_type));
 637 void putmotioncode _ANSI_ARGS_((slice_engine_t *engine, int motion_code));
 638 void putdmv _ANSI_ARGS_((slice_engine_t *engine, int dmv));
 639 void putcbp _ANSI_ARGS_((slice_engine_t *engine, int cbp));
 640
 641 extern int (*pquant_non_intra)(pict_data_s *picture, int16_t *src, int16_t *dst,
 642                                                 int mquant, int *nonsat_mquant);
 643
 644 extern int (*pquant_weight_coeff_sum)(int16_t *blk, uint16_t*i_quant_mat );
 645
 646 /* quantize.c */
 647
 648 void iquantize( pict_data_s *picture );
 649 void quant_intra_hv (   pict_data_s *picture,
 650                                         int16_t *src, int16_t *dst,
 651                                         int mquant, int *nonsat_mquant);
 652 int quant_non_intra_hv( pict_data_s *picture,
 653                                                    int16_t *src, int16_t *dst,
 654                                                         int mquant, int *nonsat_mquant);
 655 void iquant_intra ( int16_t *src, int16_t *dst, int dc_prec, int mquant);
 656 void iquant_non_intra (int16_t *src, int16_t *dst, int mquant);
 657 void init_quantizer_hv();
 658 int  next_larger_quant_hv( pict_data_s *picture, int quant );
 659
 660 extern int (*pquant_non_intra)(pict_data_s *picture, int16_t *src, int16_t *dst,
 661                                                 int mquant, int *nonsat_mquant);
 662
 663 extern int (*pquant_weight_coeff_sum)(int16_t *blk, uint16_t*i_quant_mat );
 664
 665 /* ratectl.c */
 666 void ratectl_init_seq _ANSI_ARGS_((ratectl_t *ratectl));
 667 void ratectl_init_GOP _ANSI_ARGS_((ratectl_t *ratectl, int np, int nb));
 668 void ratectl_init_pict _ANSI_ARGS_((ratectl_t *ratectl, pict_data_s *picture));
 669 void ratectl_update_pict _ANSI_ARGS_((ratectl_t *ratectl, pict_data_s *picture));
 670 int ratectl_start_mb _ANSI_ARGS_((ratectl_t *ratectl, pict_data_s *picture));
 671 int ratectl_calc_mquant _ANSI_ARGS_((ratectl_t *ratectl, pict_data_s *picture, int j));
 672 void vbv_end_of_picture _ANSI_ARGS_((void));
 673 void calc_vbv_delay _ANSI_ARGS_((void));
 674
 675 /* readpic.c */
 676 void readframe _ANSI_ARGS_((int frame_num, uint8_t *frame[]));
 677
 678 /* stats.c */
 679 void calcSNR _ANSI_ARGS_((unsigned char *org[3], unsigned char *rec[3]));
 680 void stats _ANSI_ARGS_((void));
 681
 682 /* transfrm.c */
 683 void transform _ANSI_ARGS_((pict_data_s *picture,
 684                                 uint8_t *pred[],
 685                                 uint8_t *cur[]));
 686 void itransform _ANSI_ARGS_((pict_data_s *picture,
 687                                   uint8_t *pred[], uint8_t *cur[]));
 688 void dct_type_estimation _ANSI_ARGS_((pict_data_s *picture,
 689         uint8_t *pred, uint8_t *cur));
 690