common.h 15.6 KB
Newer Older
Laurent Aimar's avatar
Laurent Aimar committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
/*****************************************************************************
 * common.h: h264 encoder
 *****************************************************************************
 * Copyright (C) 2003 Laurent Aimar
 * $Id: common.h,v 1.1 2004/06/03 19:27:06 fenrir Exp $
 *
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

#ifndef _COMMON_H
#define _COMMON_H 1

27
#ifdef HAVE_STDINT_H
Laurent Aimar's avatar
Laurent Aimar committed
28
#include <stdint.h>
29 30 31
#else
#include <inttypes.h>
#endif
32
#include <stdarg.h>
Loren Merritt's avatar
Loren Merritt committed
33
#include <stdlib.h>
Laurent Aimar's avatar
Laurent Aimar committed
34

35 36
#ifdef _MSC_VER
#define snprintf _snprintf
Loren Merritt's avatar
Loren Merritt committed
37
#define X264_VERSION "" // no configure script for msvc
38 39
#endif

Loren Merritt's avatar
Loren Merritt committed
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
/****************************************************************************
 * Macros
 ****************************************************************************/
#define X264_MIN(a,b) ( (a)<(b) ? (a) : (b) )
#define X264_MAX(a,b) ( (a)>(b) ? (a) : (b) )
#define X264_MIN3(a,b,c) X264_MIN((a),X264_MIN((b),(c)))
#define X264_MAX3(a,b,c) X264_MAX((a),X264_MAX((b),(c)))
#define X264_MIN4(a,b,c,d) X264_MIN((a),X264_MIN3((b),(c),(d)))
#define X264_MAX4(a,b,c,d) X264_MAX((a),X264_MAX3((b),(c),(d)))
#define XCHG(type,a,b) { type t = a; a = b; b = t; }
#define FIX8(f) ((int)(f*(1<<8)+.5))

/****************************************************************************
 * Includes
 ****************************************************************************/
55
#include "x264.h"
Laurent Aimar's avatar
Laurent Aimar committed
56 57 58 59 60 61 62 63 64
#include "bs.h"
#include "set.h"
#include "predict.h"
#include "pixel.h"
#include "mc.h"
#include "frame.h"
#include "dct.h"
#include "cabac.h"
#include "csp.h"
65
#include "quant.h"
Laurent Aimar's avatar
Laurent Aimar committed
66

67 68 69
/****************************************************************************
 * Generals functions
 ****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
70 71 72 73 74 75 76 77
/* x264_malloc : will do or emulate a memalign
 * XXX you HAVE TO use x264_free for buffer allocated
 * with x264_malloc
 */
void *x264_malloc( int );
void *x264_realloc( void *p, int i_size );
void  x264_free( void * );

78 79 80
/* x264_slurp_file: malloc space for the whole file and read it */
char *x264_slurp_file( const char *filename );

Laurent Aimar's avatar
Laurent Aimar committed
81 82 83
/* mdate: return the current date in microsecond */
int64_t x264_mdate( void );

84 85 86 87
/* x264_param2string: return a (malloced) string containing most of
 * the encoding options */
char *x264_param2string( x264_param_t *p, int b_res );

88 89 90
/* log */
void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... );

Laurent Aimar's avatar
Laurent Aimar committed
91 92
static inline int x264_clip3( int v, int i_min, int i_max )
{
Loren Merritt's avatar
Loren Merritt committed
93
    return ( (v < i_min) ? i_min : (v > i_max) ? i_max : v );
Laurent Aimar's avatar
Laurent Aimar committed
94 95
}

Loren Merritt's avatar
Loren Merritt committed
96 97 98 99
static inline float x264_clip3f( float v, float f_min, float f_max )
{
    return ( (v < f_min) ? f_min : (v > f_max) ? f_max : v );
}
100

101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117
static inline int x264_median( int a, int b, int c )
{
    int min = a, max =a;
    if( b < min )
        min = b;
    else
        max = b;    /* no need to do 'b > max' (more consuming than always doing affectation) */

    if( c < min )
        min = c;
    else if( c > max )
        max = c;

    return a + b + c - min - max;
}


118 119 120
/****************************************************************************
 *
 ****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
121 122 123 124 125 126 127 128 129
enum slice_type_e
{
    SLICE_TYPE_P  = 0,
    SLICE_TYPE_B  = 1,
    SLICE_TYPE_I  = 2,
    SLICE_TYPE_SP = 3,
    SLICE_TYPE_SI = 4
};

Loren Merritt's avatar
Loren Merritt committed
130 131
static const char slice_type_to_char[] = { 'P', 'B', 'I', 'S', 'S' };

Laurent Aimar's avatar
Laurent Aimar committed
132 133 134 135 136 137 138
typedef struct
{
    x264_sps_t *sps;
    x264_pps_t *pps;

    int i_type;
    int i_first_mb;
Loren Merritt's avatar
Loren Merritt committed
139
    int i_last_mb;
Laurent Aimar's avatar
Laurent Aimar committed
140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161

    int i_pps_id;

    int i_frame_num;

    int b_field_pic;
    int b_bottom_field;

    int i_idr_pic_id;   /* -1 if nal_type != 5 */

    int i_poc_lsb;
    int i_delta_poc_bottom;

    int i_delta_poc[2];
    int i_redundant_pic_cnt;

    int b_direct_spatial_mv_pred;

    int b_num_ref_idx_override;
    int i_num_ref_idx_l0_active;
    int i_num_ref_idx_l1_active;

162 163 164 165 166 167 168
    int b_ref_pic_list_reordering_l0;
    int b_ref_pic_list_reordering_l1;
    struct {
        int idc;
        int arg;
    } ref_pic_list_order[2][16];

Laurent Aimar's avatar
Laurent Aimar committed
169 170
    int i_cabac_init_idc;

171
    int i_qp;
Laurent Aimar's avatar
Laurent Aimar committed
172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214
    int i_qp_delta;
    int b_sp_for_swidth;
    int i_qs_delta;

    /* deblocking filter */
    int i_disable_deblocking_filter_idc;
    int i_alpha_c0_offset;
    int i_beta_offset;

} x264_slice_header_t;

/* From ffmpeg
 */
#define X264_SCAN8_SIZE (6*8)
#define X264_SCAN8_0 (4+1*8)

static const int x264_scan8[16+2*4] =
{
    /* Luma */
    4+1*8, 5+1*8, 4+2*8, 5+2*8,
    6+1*8, 7+1*8, 6+2*8, 7+2*8,
    4+3*8, 5+3*8, 4+4*8, 5+4*8,
    6+3*8, 7+3*8, 6+4*8, 7+4*8,

    /* Cb */
    1+1*8, 2+1*8,
    1+2*8, 2+2*8,

    /* Cr */
    1+4*8, 2+4*8,
    1+5*8, 2+5*8,
};
/*
   0 1 2 3 4 5 6 7
 0
 1   B B   L L L L
 2   B B   L L L L
 3         L L L L
 4   R R   L L L L
 5   R R
*/

#define X264_BFRAME_MAX 16
Loren Merritt's avatar
Loren Merritt committed
215 216
#define X264_SLICE_MAX 4
#define X264_NAL_MAX (4 + X264_SLICE_MAX)
Laurent Aimar's avatar
Laurent Aimar committed
217 218 219 220 221 222 223 224 225

typedef struct x264_ratecontrol_t   x264_ratecontrol_t;
typedef struct x264_vlc_table_t     x264_vlc_table_t;

struct x264_t
{
    /* encoder parameters */
    x264_param_t    param;

Loren Merritt's avatar
Loren Merritt committed
226 227
    x264_t *thread[X264_SLICE_MAX];

Laurent Aimar's avatar
Laurent Aimar committed
228 229 230 231
    /* bitstream output */
    struct
    {
        int         i_nal;
Loren Merritt's avatar
Loren Merritt committed
232
        x264_nal_t  nal[X264_NAL_MAX];
Laurent Aimar's avatar
Laurent Aimar committed
233 234 235 236 237 238 239 240 241 242 243 244
        int         i_bitstream;    /* size of p_bitstream */
        uint8_t     *p_bitstream;   /* will hold data for all nal */
        bs_t        bs;
    } out;

    /* frame number/poc */
    int             i_frame;

    int             i_frame_offset; /* decoding only */
    int             i_frame_num;    /* decoding only */
    int             i_poc_msb;      /* decoding only */
    int             i_poc_lsb;      /* decoding only */
245
    int             i_poc;          /* decoding only */
Laurent Aimar's avatar
Laurent Aimar committed
246

Loren Merritt's avatar
Loren Merritt committed
247 248 249 250
    int             i_thread_num;   /* threads only */
    int             i_nal_type;     /* threads only */
    int             i_nal_ref_idc;  /* threads only */

Laurent Aimar's avatar
Laurent Aimar committed
251
    /* We use only one SPS and one PPS */
252
    x264_sps_t      sps_array[1];
Laurent Aimar's avatar
Laurent Aimar committed
253
    x264_sps_t      *sps;
254
    x264_pps_t      pps_array[1];
Laurent Aimar's avatar
Laurent Aimar committed
255 256 257
    x264_pps_t      *pps;
    int             i_idr_pic_id;

Loren Merritt's avatar
Loren Merritt committed
258 259 260 261
    int             dequant4_mf[4][6][4][4];
    int             dequant8_mf[2][6][8][8];
    int             quant4_mf[4][6][4][4];
    int             quant8_mf[2][6][8][8];
Loren Merritt's avatar
Loren Merritt committed
262 263
    int             unquant4_mf[4][52][16];
    int             unquant8_mf[2][52][64];
Loren Merritt's avatar
Loren Merritt committed
264

265 266 267 268
    uint32_t        nr_residual_sum[4][64];
    uint32_t        nr_offset[4][64];
    uint32_t        nr_count[4];

Laurent Aimar's avatar
Laurent Aimar committed
269 270 271 272 273 274 275 276
    /* Slice header */
    x264_slice_header_t sh;

    /* cabac context */
    x264_cabac_t    cabac;

    struct
    {
277 278 279 280
        /* Frames to be encoded (whose types have been decided) */
        x264_frame_t *current[X264_BFRAME_MAX+3];
        /* Temporary buffer (frames types not yet decided) */
        x264_frame_t *next[X264_BFRAME_MAX+3];
Laurent Aimar's avatar
Laurent Aimar committed
281
        /* Unused frames */
282
        x264_frame_t *unused[X264_BFRAME_MAX+3];
283 284
        /* For adaptive B decision */
        x264_frame_t *last_nonb;
Laurent Aimar's avatar
Laurent Aimar committed
285

286 287
        /* frames used for reference +1 for decoding + sentinels */
        x264_frame_t *reference[16+2+1+2];
Laurent Aimar's avatar
Laurent Aimar committed
288

289
        int i_last_idr; /* Frame number of the last IDR */
290 291

        int i_input;    /* Number of input frames already accepted */
292 293 294 295

        int i_max_dpb;  /* Number of frames allocated in the decoded picture buffer */
        int i_max_ref0;
        int i_max_ref1;
296
        int i_delay;    /* Number of frames buffered for B reordering */
297
        int b_have_lowres;  /* Whether 1/2 resolution luma planes are being used */
Laurent Aimar's avatar
Laurent Aimar committed
298 299 300 301 302 303 304 305 306 307
    } frames;

    /* current frame being encoded */
    x264_frame_t    *fenc;

    /* frame being reconstructed */
    x264_frame_t    *fdec;

    /* references lists */
    int             i_ref0;
Loren Merritt's avatar
Loren Merritt committed
308
    x264_frame_t    *fref0[16+3];     /* ref list 0 */
Laurent Aimar's avatar
Laurent Aimar committed
309
    int             i_ref1;
Loren Merritt's avatar
Loren Merritt committed
310
    x264_frame_t    *fref1[16+3];     /* ref list 1 */
311
    int             b_ref_reorder[2];
Laurent Aimar's avatar
Laurent Aimar committed
312 313 314 315 316 317 318 319



    /* Current MB DCT coeffs */
    struct
    {
        DECLARE_ALIGNED( int, luma16x16_dc[16], 16 );
        DECLARE_ALIGNED( int, chroma_dc[2][4], 16 );
320 321
        // FIXME merge with union
        DECLARE_ALIGNED( int, luma8x8[4][64], 16 );
Loren Merritt's avatar
Loren Merritt committed
322
        union
Laurent Aimar's avatar
Laurent Aimar committed
323 324 325 326 327 328 329 330 331
        {
            DECLARE_ALIGNED( int, residual_ac[15], 16 );
            DECLARE_ALIGNED( int, luma4x4[16], 16 );
        } block[16+8];
    } dct;

    /* MB table and cache for current frame/mb */
    struct
    {
332 333
        int     i_mb_count;                 /* number of mbs in a frame */

Laurent Aimar's avatar
Laurent Aimar committed
334 335
        /* Strides */
        int     i_mb_stride;
336 337
        int     i_b8_stride;
        int     i_b4_stride;
Laurent Aimar's avatar
Laurent Aimar committed
338 339 340 341 342

        /* Current index */
        int     i_mb_x;
        int     i_mb_y;
        int     i_mb_xy;
343 344
        int     i_b8_xy;
        int     i_b4_xy;
345 346
        
        /* Search parameters */
Loren Merritt's avatar
Loren Merritt committed
347
        int     i_me_method;
348
        int     i_subpel_refine;
Loren Merritt's avatar
Loren Merritt committed
349
        int     b_chroma_me;
Loren Merritt's avatar
Loren Merritt committed
350
        int     b_trellis;
351 352
        int     b_noise_reduction;

353
        /* Allowed qpel MV range to stay within the picture + emulated edge pixels */
354 355
        int     mv_min[2];
        int     mv_max[2];
356 357 358
        /* Fullpel MV range for motion search */
        int     mv_min_fpel[2];
        int     mv_max_fpel[2];
359

Loren Merritt's avatar
Loren Merritt committed
360
        /* neighboring MBs */
Laurent Aimar's avatar
Laurent Aimar committed
361
        unsigned int i_neighbour;
362 363
        unsigned int i_neighbour8[4];       /* neighbours of each 8x8 or 4x4 block that are available */
        unsigned int i_neighbour4[16];      /* at the time the block is coded */
Loren Merritt's avatar
Loren Merritt committed
364 365
        int     i_mb_type_top; 
        int     i_mb_type_left; 
Loren Merritt's avatar
Loren Merritt committed
366 367
        int     i_mb_type_topleft; 
        int     i_mb_type_topright; 
Laurent Aimar's avatar
Laurent Aimar committed
368 369 370 371 372 373 374 375 376 377

        /* mb table */
        int8_t  *type;                      /* mb type */
        int8_t  *qp;                        /* mb qp */
        int16_t *cbp;                       /* mb cbp: 0x0?: luma, 0x?0: chroma, 0x100: luma dc, 0x0200 and 0x0400: chroma dc  (all set for PCM)*/
        int8_t  (*intra4x4_pred_mode)[7];   /* intra4x4 pred mode. for non I4x4 set to I_PRED_4x4_DC(2) */
        uint8_t (*non_zero_count)[16+4+4];  /* nzc. for I_PCM set to 16 */
        int8_t  *chroma_pred_mode;          /* chroma_pred_mode. cabac only. for non intra I_PRED_CHROMA_DC(0) */
        int16_t (*mv[2])[2];                /* mb mv. set to 0 for intra mb */
        int16_t (*mvd[2])[2];               /* mb mv difference with predict. set to 0 if intra. cabac only */
378
        int8_t   *ref[2];                   /* mb ref. set to -1 if non used (intra or Lx only) */
379 380
        int16_t (*mvr[2][16])[2];           /* 16x16 mv for each possible ref */
        int8_t  *skipbp;                    /* block pattern for SKIP or DIRECT (sub)mbs. B-frames + cabac only */
381
        int8_t  *mb_transform_size;         /* transform_size_8x8_flag of each mb */
382

Laurent Aimar's avatar
Laurent Aimar committed
383 384 385 386
        /* current value */
        int     i_type;
        int     i_partition;
        int     i_sub_partition[4];
387
        int     b_transform_8x8;
Laurent Aimar's avatar
Laurent Aimar committed
388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403

        int     i_cbp_luma;
        int     i_cbp_chroma;

        int     i_intra16x16_pred_mode;
        int     i_chroma_pred_mode;

        struct
        {
            /* pointer over mb of the frame to be compressed */
            uint8_t *p_fenc[3];

            /* pointer over mb of the frame to be reconstrucated  */
            uint8_t *p_fdec[3];

            /* pointer over mb of the references */
404
            uint8_t *p_fref[2][16][4+2]; /* last: lN, lH, lV, lHV, cU, cV */
405
            uint16_t *p_integral[2][16];
Laurent Aimar's avatar
Laurent Aimar committed
406 407 408 409 410 411 412 413

            /* common stride */
            int     i_stride[3];
        } pic;

        /* cache */
        struct
        {
414
            /* real intra4x4_pred_mode if I_4X4 or I_8X8, I_PRED_4x4_DC if mb available, -1 if not */
Laurent Aimar's avatar
Laurent Aimar committed
415 416 417 418 419 420 421 422 423 424 425
            int     intra4x4_pred_mode[X264_SCAN8_SIZE];

            /* i_non_zero_count if availble else 0x80 */
            int     non_zero_count[X264_SCAN8_SIZE];

            /* -1 if unused, -2 if unavaible */
            int8_t  ref[2][X264_SCAN8_SIZE];

            /* 0 if non avaible */
            int16_t mv[2][X264_SCAN8_SIZE][2];
            int16_t mvd[2][X264_SCAN8_SIZE][2];
426 427 428 429 430 431

            /* 1 if SKIP or DIRECT. set only for B-frames + CABAC */
            int8_t  skip[X264_SCAN8_SIZE];

            int16_t direct_mv[2][X264_SCAN8_SIZE][2];
            int8_t  direct_ref[2][X264_SCAN8_SIZE];
432

433 434 435
            /* number of neighbors (top and left) that used 8x8 dct */
            int     i_neighbour_transform_size;
            int     b_transform_8x8_allowed;
Laurent Aimar's avatar
Laurent Aimar committed
436 437 438
        } cache;

        /* */
439
        int     i_qp;       /* current qp */
Laurent Aimar's avatar
Laurent Aimar committed
440 441
        int     i_last_qp;  /* last qp */
        int     i_last_dqp; /* last delta qp */
442
        int     b_variable_qp; /* whether qp is allowed to vary per macroblock */
Loren Merritt's avatar
Loren Merritt committed
443
        int     b_lossless;
Laurent Aimar's avatar
Laurent Aimar committed
444

445 446 447
        /* B_direct and weighted prediction */
        int     dist_scale_factor[16][16];
        int     bipred_weight[16][16];
448 449 450
        /* maps fref1[0]'s ref indices into the current list0 */
        int     map_col_to_list0_buf[2]; // for negative indices
        int     map_col_to_list0[16];
Laurent Aimar's avatar
Laurent Aimar committed
451 452 453 454 455
    } mb;

    /* rate control encoding only */
    x264_ratecontrol_t *rc;

456 457 458 459
    int i_last_inter_size;
    int i_last_intra_size;
    int i_last_intra_qp;

Laurent Aimar's avatar
Laurent Aimar committed
460 461 462
    /* stats */
    struct
    {
463 464 465 466 467 468 469 470 471 472 473
        /* Current frame stats */
        struct
        {
            /* Headers bits (MV+Ref+MB Block Type */
            int i_hdr_bits;
            /* Texture bits (Intra/Predicted) */
            int i_itex_bits;
            int i_ptex_bits;
            /* ? */
            int i_misc_bits;
            /* MB type counts */
474
            int i_mb_count[19];
475
            int i_mb_count_i;
Loren Merritt's avatar
Loren Merritt committed
476 477
            int i_mb_count_p;
            int i_mb_count_skip;
478
            int i_mb_count_8x8dct[2];
479 480
            int i_mb_count_size[7];
            int i_mb_count_ref[16];
481 482 483 484
            /* Estimated (SATD) cost as Intra/Predicted frame */
            /* XXX: both omit the cost of MBs coded as P_SKIP */
            int i_intra_cost;
            int i_inter_cost;
485 486 487 488
        } frame;

        /* Cummulated stats */

Laurent Aimar's avatar
Laurent Aimar committed
489 490
        /* per slice info */
        int   i_slice_count[5];
491
        int64_t i_slice_size[5];
Loren Merritt's avatar
Loren Merritt committed
492
        int     i_slice_qp[5];
493 494 495 496 497 498 499
        /* */
        int64_t i_sqe_global[5];
        float   f_psnr_average[5];
        float   f_psnr_mean_y[5];
        float   f_psnr_mean_u[5];
        float   f_psnr_mean_v[5];
        /* */
500
        int64_t i_mb_count[5][19];
501
        int64_t i_mb_count_8x8dct[2];
502 503
        int64_t i_mb_count_size[2][7];
        int64_t i_mb_count_ref[2][16];
504

Laurent Aimar's avatar
Laurent Aimar committed
505 506 507 508
    } stat;

    /* CPU functions dependants */
    x264_predict_t      predict_16x16[4+3];
509 510
    x264_predict_t      predict_8x8c[4+3];
    x264_predict8x8_t   predict_8x8[9+3];
Laurent Aimar's avatar
Laurent Aimar committed
511 512 513
    x264_predict_t      predict_4x4[9+3];

    x264_pixel_function_t pixf;
514
    x264_mc_functions_t   mc;
Laurent Aimar's avatar
Laurent Aimar committed
515 516
    x264_dct_function_t   dctf;
    x264_csp_function_t   csp;
517
    x264_quant_function_t quantf;
Loren Merritt's avatar
Loren Merritt committed
518
    x264_deblock_function_t loopf;
Laurent Aimar's avatar
Laurent Aimar committed
519 520 521 522 523 524 525

    /* vlc table for decoding purpose only */
    x264_vlc_table_t *x264_coeff_token_lookup[5];
    x264_vlc_table_t *x264_level_prefix_lookup;
    x264_vlc_table_t *x264_total_zeros_lookup[15];
    x264_vlc_table_t *x264_total_zeros_dc_lookup[3];
    x264_vlc_table_t *x264_run_before_lookup[7];
Loren Merritt's avatar
Loren Merritt committed
526 527 528 529

#if VISUALIZE
    struct visualize_t *visualize;
#endif
Laurent Aimar's avatar
Laurent Aimar committed
530 531
};

532 533 534
// included at the end because it needs x264_t
#include "macroblock.h"

Laurent Aimar's avatar
Laurent Aimar committed
535 536
#endif