common.h 14.8 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>
Laurent Aimar's avatar
Laurent Aimar committed
33

34 35
#ifdef _MSC_VER
#define snprintf _snprintf
Loren Merritt's avatar
Loren Merritt committed
36
#define X264_VERSION "" // no configure script for msvc
37 38
#endif

39
#include "x264.h"
Laurent Aimar's avatar
Laurent Aimar committed
40 41 42 43 44 45 46 47 48
#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"
49
#include "quant.h"
Laurent Aimar's avatar
Laurent Aimar committed
50

51 52 53
/****************************************************************************
 * Macros
 ****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
54 55 56
#define X264_MIN(a,b) ( (a)<(b) ? (a) : (b) )
#define X264_MAX(a,b) ( (a)>(b) ? (a) : (b) )
#define X264_ABS(a)   ( (a)< 0 ? -(a) : (a) )
57
#define X264_MIN3(a,b,c) X264_MIN((a),X264_MIN((b),(c)))
58
#define X264_MAX3(a,b,c) X264_MAX((a),X264_MAX((b),(c)))
59
#define X264_MIN4(a,b,c,d) X264_MIN((a),X264_MIN3((b),(c),(d)))
60
#define X264_MAX4(a,b,c,d) X264_MAX((a),X264_MAX3((b),(c),(d)))
Laurent Aimar's avatar
Laurent Aimar committed
61

62 63 64
/****************************************************************************
 * Generals functions
 ****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
65 66 67 68 69 70 71 72
/* 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 * );

73 74 75
/* 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
76 77 78
/* mdate: return the current date in microsecond */
int64_t x264_mdate( void );

79 80 81
/* log */
void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... );

Laurent Aimar's avatar
Laurent Aimar committed
82 83
static inline int x264_clip3( int v, int i_min, int i_max )
{
Loren Merritt's avatar
Loren Merritt committed
84
    return ( (v < i_min) ? i_min : (v > i_max) ? i_max : v );
Laurent Aimar's avatar
Laurent Aimar committed
85 86
}

Loren Merritt's avatar
Loren Merritt committed
87 88 89 90
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 );
}
91

92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108
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;
}


109 110 111
/****************************************************************************
 *
 ****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
112 113 114 115 116 117 118 119 120
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
121 122
static const char slice_type_to_char[] = { 'P', 'B', 'I', 'S', 'S' };

Laurent Aimar's avatar
Laurent Aimar committed
123 124 125 126 127 128 129
typedef struct
{
    x264_sps_t *sps;
    x264_pps_t *pps;

    int i_type;
    int i_first_mb;
Loren Merritt's avatar
Loren Merritt committed
130
    int i_last_mb;
Laurent Aimar's avatar
Laurent Aimar committed
131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152

    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;

153 154 155 156 157 158 159
    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
160 161
    int i_cabac_init_idc;

162
    int i_qp;
Laurent Aimar's avatar
Laurent Aimar committed
163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205
    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
206 207
#define X264_SLICE_MAX 4
#define X264_NAL_MAX (4 + X264_SLICE_MAX)
Laurent Aimar's avatar
Laurent Aimar committed
208 209 210 211 212 213 214 215 216

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
217 218
    x264_t *thread[X264_SLICE_MAX];

Laurent Aimar's avatar
Laurent Aimar committed
219 220 221 222
    /* bitstream output */
    struct
    {
        int         i_nal;
Loren Merritt's avatar
Loren Merritt committed
223
        x264_nal_t  nal[X264_NAL_MAX];
Laurent Aimar's avatar
Laurent Aimar committed
224 225 226 227 228 229 230 231 232 233 234 235
        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 */
236
    int             i_poc;          /* decoding only */
Laurent Aimar's avatar
Laurent Aimar committed
237

Loren Merritt's avatar
Loren Merritt committed
238 239 240 241
    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
242
    /* We use only one SPS and one PPS */
243
    x264_sps_t      sps_array[1];
Laurent Aimar's avatar
Laurent Aimar committed
244
    x264_sps_t      *sps;
245
    x264_pps_t      pps_array[1];
Laurent Aimar's avatar
Laurent Aimar committed
246 247 248
    x264_pps_t      *pps;
    int             i_idr_pic_id;

Loren Merritt's avatar
Loren Merritt committed
249 250 251 252 253
    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];

Laurent Aimar's avatar
Laurent Aimar committed
254 255 256 257 258 259 260 261
    /* Slice header */
    x264_slice_header_t sh;

    /* cabac context */
    x264_cabac_t    cabac;

    struct
    {
262 263 264 265
        /* 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
266
        /* Unused frames */
267
        x264_frame_t *unused[X264_BFRAME_MAX+3];
268 269
        /* For adaptive B decision */
        x264_frame_t *last_nonb;
Laurent Aimar's avatar
Laurent Aimar committed
270

271 272
        /* frames used for reference +1 for decoding + sentinels */
        x264_frame_t *reference[16+2+1+2];
Laurent Aimar's avatar
Laurent Aimar committed
273

274
        int i_last_idr; /* Frame number of the last IDR */
275 276

        int i_input;    /* Number of input frames already accepted */
277 278 279 280

        int i_max_dpb;  /* Number of frames allocated in the decoded picture buffer */
        int i_max_ref0;
        int i_max_ref1;
281
        int i_delay;    /* Number of frames buffered for B reordering */
Laurent Aimar's avatar
Laurent Aimar committed
282 283 284 285 286 287 288 289 290 291
    } 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
292
    x264_frame_t    *fref0[16+3];     /* ref list 0 */
Laurent Aimar's avatar
Laurent Aimar committed
293
    int             i_ref1;
Loren Merritt's avatar
Loren Merritt committed
294
    x264_frame_t    *fref1[16+3];     /* ref list 1 */
295
    int             b_ref_reorder[2];
Laurent Aimar's avatar
Laurent Aimar committed
296 297 298 299 300 301 302 303



    /* Current MB DCT coeffs */
    struct
    {
        DECLARE_ALIGNED( int, luma16x16_dc[16], 16 );
        DECLARE_ALIGNED( int, chroma_dc[2][4], 16 );
304 305
        // FIXME merge with union
        DECLARE_ALIGNED( int, luma8x8[4][64], 16 );
Loren Merritt's avatar
Loren Merritt committed
306
        union
Laurent Aimar's avatar
Laurent Aimar committed
307 308 309 310 311 312 313 314 315
        {
            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
    {
316 317
        int     i_mb_count;                 /* number of mbs in a frame */

Laurent Aimar's avatar
Laurent Aimar committed
318 319
        /* Strides */
        int     i_mb_stride;
320 321
        int     i_b8_stride;
        int     i_b4_stride;
Laurent Aimar's avatar
Laurent Aimar committed
322 323 324 325 326

        /* Current index */
        int     i_mb_x;
        int     i_mb_y;
        int     i_mb_xy;
327 328
        int     i_b8_xy;
        int     i_b4_xy;
329 330
        
        /* Search parameters */
Loren Merritt's avatar
Loren Merritt committed
331
        int     i_me_method;
332
        int     i_subpel_refine;
Loren Merritt's avatar
Loren Merritt committed
333
        int     b_chroma_me;
334
        /* Allowed qpel MV range to stay within the picture + emulated edge pixels */
335 336
        int     mv_min[2];
        int     mv_max[2];
337 338 339
        /* Fullpel MV range for motion search */
        int     mv_min_fpel[2];
        int     mv_max_fpel[2];
340

Loren Merritt's avatar
Loren Merritt committed
341
        /* neighboring MBs */
Laurent Aimar's avatar
Laurent Aimar committed
342
        unsigned int i_neighbour;
343 344
        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
345 346
        int     i_mb_type_top; 
        int     i_mb_type_left; 
Loren Merritt's avatar
Loren Merritt committed
347 348
        int     i_mb_type_topleft; 
        int     i_mb_type_topright; 
Laurent Aimar's avatar
Laurent Aimar committed
349 350 351 352 353 354 355 356 357 358

        /* 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 */
359
        int8_t   *ref[2];                   /* mb ref. set to -1 if non used (intra or Lx only) */
360 361
        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 */
362
        int8_t  *mb_transform_size;         /* transform_size_8x8_flag of each mb */
363

Laurent Aimar's avatar
Laurent Aimar committed
364 365 366 367
        /* current value */
        int     i_type;
        int     i_partition;
        int     i_sub_partition[4];
368
        int     b_transform_8x8;
Laurent Aimar's avatar
Laurent Aimar committed
369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384

        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 */
385
            uint8_t *p_fref[2][16][4+2]; /* last: lN, lH, lV, lHV, cU, cV */
Laurent Aimar's avatar
Laurent Aimar committed
386 387 388 389 390 391 392 393

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

        /* cache */
        struct
        {
394
            /* 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
395 396 397 398 399 400 401 402 403 404 405
            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];
406 407 408 409 410 411

            /* 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];
412

413 414 415
            /* 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
416 417 418
        } cache;

        /* */
419
        int     i_qp;       /* current qp */
Laurent Aimar's avatar
Laurent Aimar committed
420 421
        int     i_last_qp;  /* last qp */
        int     i_last_dqp; /* last delta qp */
422
        int     b_variable_qp; /* whether qp is allowed to vary per macroblock */
Loren Merritt's avatar
Loren Merritt committed
423
        int     b_lossless;
Laurent Aimar's avatar
Laurent Aimar committed
424

425 426 427
        /* B_direct and weighted prediction */
        int     dist_scale_factor[16][16];
        int     bipred_weight[16][16];
428 429 430
        /* 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
431 432 433 434 435
    } mb;

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

436 437 438 439
    int i_last_inter_size;
    int i_last_intra_size;
    int i_last_intra_qp;

Laurent Aimar's avatar
Laurent Aimar committed
440 441 442
    /* stats */
    struct
    {
443 444 445 446 447 448 449 450 451 452 453
        /* 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 */
454
            int i_mb_count[19];
455
            int i_mb_count_i;
Loren Merritt's avatar
Loren Merritt committed
456 457
            int i_mb_count_p;
            int i_mb_count_skip;
458
            int i_mb_count_8x8dct[2];
459 460
            int i_mb_count_size[7];
            int i_mb_count_ref[16];
461 462 463 464
            /* 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;
465 466 467 468
        } frame;

        /* Cummulated stats */

Laurent Aimar's avatar
Laurent Aimar committed
469 470
        /* per slice info */
        int   i_slice_count[5];
471
        int64_t i_slice_size[5];
Loren Merritt's avatar
Loren Merritt committed
472
        int     i_slice_qp[5];
473 474 475 476 477 478 479
        /* */
        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];
        /* */
480
        int64_t i_mb_count[5][19];
481
        int64_t i_mb_count_8x8dct[2];
482 483
        int64_t i_mb_count_size[2][7];
        int64_t i_mb_count_ref[2][16];
484

Laurent Aimar's avatar
Laurent Aimar committed
485 486 487 488
    } stat;

    /* CPU functions dependants */
    x264_predict_t      predict_16x16[4+3];
489 490
    x264_predict_t      predict_8x8c[4+3];
    x264_predict8x8_t   predict_8x8[9+3];
Laurent Aimar's avatar
Laurent Aimar committed
491 492 493
    x264_predict_t      predict_4x4[9+3];

    x264_pixel_function_t pixf;
494
    x264_mc_functions_t   mc;
Laurent Aimar's avatar
Laurent Aimar committed
495 496
    x264_dct_function_t   dctf;
    x264_csp_function_t   csp;
497
    x264_quant_function_t quantf;
Laurent Aimar's avatar
Laurent Aimar committed
498 499 500 501 502 503 504

    /* 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
505 506 507 508

#if VISUALIZE
    struct visualize_t *visualize;
#endif
Laurent Aimar's avatar
Laurent Aimar committed
509 510 511 512
};

#endif