common.c 29.8 KB
Newer Older
Laurent Aimar's avatar
Laurent Aimar committed
1 2 3
/*****************************************************************************
 * common.c: h264 library
 *****************************************************************************
4
 * Copyright (C) 2003-2008 x264 project
Laurent Aimar's avatar
Laurent Aimar committed
5
 *
6 7
 * Authors: Loren Merritt <lorenm@u.washington.edu>
 *          Laurent Aimar <fenrir@via.ecp.fr>
Laurent Aimar's avatar
Laurent Aimar committed
8 9 10 11 12 13 14 15 16 17 18 19 20
 *
 * 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
21
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
Laurent Aimar's avatar
Laurent Aimar committed
22 23
 *****************************************************************************/

24
#include <stdarg.h>
25
#include <ctype.h>
Laurent Aimar's avatar
Laurent Aimar committed
26 27 28 29 30 31 32 33

#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif

#include "common.h"
#include "cpu.h"

34 35
static void x264_log_default( void *, int, const char *, va_list );

Laurent Aimar's avatar
Laurent Aimar committed
36 37 38 39 40 41 42 43 44 45
/****************************************************************************
 * x264_param_default:
 ****************************************************************************/
void    x264_param_default( x264_param_t *param )
{
    /* */
    memset( param, 0, sizeof( x264_param_t ) );

    /* CPU autodetect */
    param->cpu = x264_cpu_detect();
46
    param->i_threads = X264_THREADS_AUTO;
Loren Merritt's avatar
Loren Merritt committed
47
    param->b_deterministic = 1;
Steven Walters's avatar
Steven Walters committed
48
    param->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
Laurent Aimar's avatar
Laurent Aimar committed
49 50 51 52 53 54 55

    /* Video properties */
    param->i_csp           = X264_CSP_I420;
    param->i_width         = 0;
    param->i_height        = 0;
    param->vui.i_sar_width = 0;
    param->vui.i_sar_height= 0;
56 57 58 59 60 61 62
    param->vui.i_overscan  = 0;  /* undef */
    param->vui.i_vidformat = 5;  /* undef */
    param->vui.b_fullrange = 0;  /* off */
    param->vui.i_colorprim = 2;  /* undef */
    param->vui.i_transfer  = 2;  /* undef */
    param->vui.i_colmatrix = 2;  /* undef */
    param->vui.i_chroma_loc= 0;  /* left center */
63 64
    param->i_fps_num       = 25;
    param->i_fps_den       = 1;
65
    param->i_level_idc     = -1;
Fiona Glaser's avatar
Fiona Glaser committed
66 67 68
    param->i_slice_max_size = 0;
    param->i_slice_max_mbs = 0;
    param->i_slice_count = 0;
Laurent Aimar's avatar
Laurent Aimar committed
69 70

    /* Encoder parameters */
71
    param->i_frame_reference = 3;
72
    param->i_keyint_max = 250;
73
    param->i_keyint_min = 25;
74
    param->i_bframe = 3;
75
    param->i_scenecut_threshold = 40;
76
    param->i_bframe_adaptive = X264_B_ADAPT_FAST;
77
    param->i_bframe_bias = 0;
78
    param->b_bframe_pyramid = 0;
79 80
    param->b_interlaced = 0;
    param->b_constrained_intra = 0;
Laurent Aimar's avatar
Laurent Aimar committed
81 82 83 84 85

    param->b_deblocking_filter = 1;
    param->i_deblocking_filter_alphac0 = 0;
    param->i_deblocking_filter_beta = 0;

86
    param->b_cabac = 1;
87
    param->i_cabac_init_idc = 0;
Laurent Aimar's avatar
Laurent Aimar committed
88

89
    param->rc.i_rc_method = X264_RC_CRF;
90
    param->rc.i_bitrate = 0;
Loren Merritt's avatar
Loren Merritt committed
91 92 93 94
    param->rc.f_rate_tolerance = 1.0;
    param->rc.i_vbv_max_bitrate = 0;
    param->rc.i_vbv_buffer_size = 0;
    param->rc.f_vbv_buffer_init = 0.9;
95 96
    param->rc.i_qp_constant = 23;
    param->rc.f_rf_constant = 23;
Loren Merritt's avatar
Loren Merritt committed
97
    param->rc.i_qp_min = 10;
98 99
    param->rc.i_qp_max = 51;
    param->rc.i_qp_step = 4;
Loren Merritt's avatar
Loren Merritt committed
100
    param->rc.f_ip_factor = 1.4;
101
    param->rc.f_pb_factor = 1.3;
102
    param->rc.i_aq_mode = X264_AQ_VARIANCE;
103
    param->rc.f_aq_strength = 1.0;
Fiona Glaser's avatar
Fiona Glaser committed
104
    param->rc.i_lookahead = 40;
105 106 107 108 109 110 111

    param->rc.b_stat_write = 0;
    param->rc.psz_stat_out = "x264_2pass.log";
    param->rc.b_stat_read = 0;
    param->rc.psz_stat_in = "x264_2pass.log";
    param->rc.f_qcompress = 0.6;
    param->rc.f_qblur = 0.5;
Loren Merritt's avatar
Loren Merritt committed
112
    param->rc.f_complexity_blur = 20;
Loren Merritt's avatar
Loren Merritt committed
113
    param->rc.i_zones = 0;
Fiona Glaser's avatar
Fiona Glaser committed
114
    param->rc.b_mb_tree = 1;
Laurent Aimar's avatar
Laurent Aimar committed
115

116 117 118
    /* Log */
    param->pf_log = x264_log_default;
    param->p_log_private = NULL;
119
    param->i_log_level = X264_LOG_INFO;
120 121

    /* */
122
    param->analyse.intra = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8;
123 124
    param->analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8
                         | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_BSUB16x16;
125
    param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
126
    param->analyse.i_me_method = X264_ME_HEX;
127
    param->analyse.f_psy_rd = 1.0;
Fiona Glaser's avatar
Fiona Glaser committed
128
    param->analyse.b_psy = 1;
129
    param->analyse.f_psy_trellis = 0;
130
    param->analyse.i_me_range = 16;
131 132
    param->analyse.i_subpel_refine = 7;
    param->analyse.b_mixed_references = 1;
Loren Merritt's avatar
Loren Merritt committed
133
    param->analyse.b_chroma_me = 1;
Loren Merritt's avatar
Loren Merritt committed
134
    param->analyse.i_mv_range_thread = -1;
135
    param->analyse.i_mv_range = -1; // set from level_idc
136
    param->analyse.i_chroma_qp_offset = 0;
Loren Merritt's avatar
Loren Merritt committed
137
    param->analyse.b_fast_pskip = 1;
138
    param->analyse.b_weighted_bipred = 1;
139
    param->analyse.b_dct_decimate = 1;
140 141
    param->analyse.b_transform_8x8 = 1;
    param->analyse.i_trellis = 1;
142 143
    param->analyse.i_luma_deadzone[0] = 21;
    param->analyse.i_luma_deadzone[1] = 11;
144 145
    param->analyse.b_psnr = 0;
    param->analyse.b_ssim = 0;
146

Loren Merritt's avatar
Loren Merritt committed
147 148 149 150 151 152 153 154
    param->i_cqm_preset = X264_CQM_FLAT;
    memset( param->cqm_4iy, 16, 16 );
    memset( param->cqm_4ic, 16, 16 );
    memset( param->cqm_4py, 16, 16 );
    memset( param->cqm_4pc, 16, 16 );
    memset( param->cqm_8iy, 16, 64 );
    memset( param->cqm_8py, 16, 64 );

155
    param->b_repeat_headers = 1;
156
    param->b_annexb = 1;
157
    param->b_aud = 0;
Laurent Aimar's avatar
Laurent Aimar committed
158 159
}

160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183
static int parse_enum( const char *arg, const char * const *names, int *dst )
{
    int i;
    for( i = 0; names[i]; i++ )
        if( !strcmp( arg, names[i] ) )
        {
            *dst = i;
            return 0;
        }
    return -1;
}

static int parse_cqm( const char *str, uint8_t *cqm, int length )
{
    int i = 0;
    do {
        int coef;
        if( !sscanf( str, "%d", &coef ) || coef < 1 || coef > 255 )
            return -1;
        cqm[i++] = coef;
    } while( i < length && (str = strchr( str, ',' )) && str++ );
    return (i == length) ? 0 : -1;
}

184
static int x264_atobool( const char *str, int *b_error )
185
{
Loren Merritt's avatar
Loren Merritt committed
186 187
    if( !strcmp(str, "1") ||
        !strcmp(str, "true") ||
188 189
        !strcmp(str, "yes") )
        return 1;
Loren Merritt's avatar
Loren Merritt committed
190 191
    if( !strcmp(str, "0") ||
        !strcmp(str, "false") ||
192 193
        !strcmp(str, "no") )
        return 0;
194 195 196 197 198 199 200 201 202 203 204
    *b_error = 1;
    return 0;
}

static int x264_atoi( const char *str, int *b_error )
{
    char *end;
    int v = strtol( str, &end, 0 );
    if( end == str || *end != '\0' )
        *b_error = 1;
    return v;
205 206
}

207 208 209 210 211 212 213 214 215 216 217 218
static double x264_atof( const char *str, int *b_error )
{
    char *end;
    double v = strtod( str, &end );
    if( end == str || *end != '\0' )
        *b_error = 1;
    return v;
}

#define atobool(str) ( name_was_bool = 1, x264_atobool( str, &b_error ) )
#define atoi(str) x264_atoi( str, &b_error )
#define atof(str) x264_atof( str, &b_error )
219 220 221

int x264_param_parse( x264_param_t *p, const char *name, const char *value )
{
222
    char *name_buf = NULL;
223
    int b_error = 0;
224 225
    int name_was_bool;
    int value_was_null = !value;
226 227 228 229 230
    int i;

    if( !name )
        return X264_PARAM_BAD_NAME;
    if( !value )
231
        value = "true";
232 233 234 235

    if( value[0] == '=' )
        value++;

236 237 238 239 240 241 242 243 244
    if( strchr( name, '_' ) ) // s/_/-/g
    {
        char *p;
        name_buf = strdup(name);
        while( (p = strchr( name_buf, '_' )) )
            *p = '-';
        name = name_buf;
    }

245 246 247 248 249 250
    if( (!strncmp( name, "no-", 3 ) && (i = 3)) ||
        (!strncmp( name, "no", 2 ) && (i = 2)) )
    {
        name += i;
        value = atobool(value) ? "false" : "true";
    }
251
    name_was_bool = 0;
252 253

#define OPT(STR) else if( !strcmp( name, STR ) )
254
#define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
255 256
    if(0);
    OPT("asm")
257 258 259 260 261 262
    {
        p->cpu = isdigit(value[0]) ? atoi(value) :
                 !strcmp(value, "auto") || atobool(value) ? x264_cpu_detect() : 0;
        if( b_error )
        {
            char *buf = strdup(value);
263
            char *tok, UNUSED *saveptr, *init;
264 265 266 267 268 269 270 271 272 273 274 275
            b_error = 0;
            p->cpu = 0;
            for( init=buf; (tok=strtok_r(init, ",", &saveptr)); init=NULL )
            {
                for( i=0; x264_cpu_names[i].flags && strcasecmp(tok, x264_cpu_names[i].name); i++ );
                p->cpu |= x264_cpu_names[i].flags;
                if( !x264_cpu_names[i].flags )
                    b_error = 1;
            }
            free( buf );
        }
    }
276
    OPT("threads")
277 278
    {
        if( !strcmp(value, "auto") )
279
            p->i_threads = X264_THREADS_AUTO;
280 281 282
        else
            p->i_threads = atoi(value);
    }
Steven Walters's avatar
Steven Walters committed
283 284 285 286 287 288 289
    OPT("sync-lookahead")
    {
        if( !strcmp(value, "auto") )
            p->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
        else
            p->i_sync_lookahead = atoi(value);
    }
Loren Merritt's avatar
Loren Merritt committed
290 291
    OPT2("deterministic", "n-deterministic")
        p->b_deterministic = atobool(value);
292
    OPT2("level", "level-idc")
293 294 295 296 297 298 299 300 301 302 303 304 305
    {
        if( atof(value) < 6 )
            p->i_level_idc = (int)(10*atof(value)+.5);
        else
            p->i_level_idc = atoi(value);
    }
    OPT("sar")
    {
        b_error = ( 2 != sscanf( value, "%d:%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) &&
                    2 != sscanf( value, "%d/%d", &p->vui.i_sar_width, &p->vui.i_sar_height ) );
    }
    OPT("overscan")
        b_error |= parse_enum( value, x264_overscan_names, &p->vui.i_overscan );
306
    OPT("videoformat")
307 308 309
        b_error |= parse_enum( value, x264_vidformat_names, &p->vui.i_vidformat );
    OPT("fullrange")
        b_error |= parse_enum( value, x264_fullrange_names, &p->vui.b_fullrange );
310
    OPT("colorprim")
311 312 313
        b_error |= parse_enum( value, x264_colorprim_names, &p->vui.i_colorprim );
    OPT("transfer")
        b_error |= parse_enum( value, x264_transfer_names, &p->vui.i_transfer );
314
    OPT("colormatrix")
315 316 317 318 319 320 321 322 323 324
        b_error |= parse_enum( value, x264_colmatrix_names, &p->vui.i_colmatrix );
    OPT("chromaloc")
    {
        p->vui.i_chroma_loc = atoi(value);
        b_error = ( p->vui.i_chroma_loc < 0 || p->vui.i_chroma_loc > 5 );
    }
    OPT("fps")
    {
        if( sscanf( value, "%d/%d", &p->i_fps_num, &p->i_fps_den ) == 2 )
            ;
325
        else
326
        {
327
            float fps = atof(value);
328 329 330 331
            p->i_fps_num = (int)(fps * 1000 + .5);
            p->i_fps_den = 1000;
        }
    }
332
    OPT2("ref", "frameref")
333 334 335 336 337 338 339
        p->i_frame_reference = atoi(value);
    OPT("keyint")
    {
        p->i_keyint_max = atoi(value);
        if( p->i_keyint_min > p->i_keyint_max )
            p->i_keyint_min = p->i_keyint_max;
    }
340
    OPT2("min-keyint", "keyint-min")
341 342 343 344 345 346
    {
        p->i_keyint_min = atoi(value);
        if( p->i_keyint_max < p->i_keyint_min )
            p->i_keyint_max = p->i_keyint_min;
    }
    OPT("scenecut")
Fiona Glaser's avatar
Fiona Glaser committed
347 348 349 350 351 352 353 354
    {
        p->i_scenecut_threshold = atobool(value);
        if( b_error || p->i_scenecut_threshold )
        {
            b_error = 0;
            p->i_scenecut_threshold = atoi(value);
        }
    }
355 356 357
    OPT("bframes")
        p->i_bframe = atoi(value);
    OPT("b-adapt")
358 359 360 361 362 363 364 365
    {
        p->i_bframe_adaptive = atobool(value);
        if( b_error )
        {
            b_error = 0;
            p->i_bframe_adaptive = atoi(value);
        }
    }
366 367 368 369 370
    OPT("b-bias")
        p->i_bframe_bias = atoi(value);
    OPT("b-pyramid")
        p->b_bframe_pyramid = atobool(value);
    OPT("nf")
371
        p->b_deblocking_filter = !atobool(value);
372
    OPT2("filter", "deblock")
373
    {
374 375
        if( 2 == sscanf( value, "%d:%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) ||
            2 == sscanf( value, "%d,%d", &p->i_deblocking_filter_alphac0, &p->i_deblocking_filter_beta ) )
376 377
        {
            p->b_deblocking_filter = 1;
378 379 380 381 382
        }
        else if( sscanf( value, "%d", &p->i_deblocking_filter_alphac0 ) )
        {
            p->b_deblocking_filter = 1;
            p->i_deblocking_filter_beta = p->i_deblocking_filter_alphac0;
383 384 385 386
        }
        else
            p->b_deblocking_filter = atobool(value);
    }
Fiona Glaser's avatar
Fiona Glaser committed
387 388 389 390 391 392
    OPT("slice-max-size")
        p->i_slice_max_size = atoi(value);
    OPT("slice-max-mbs")
        p->i_slice_max_mbs = atoi(value);
    OPT("slices")
        p->i_slice_count = atoi(value);
393 394 395 396
    OPT("cabac")
        p->b_cabac = atobool(value);
    OPT("cabac-idc")
        p->i_cabac_init_idc = atoi(value);
397 398
    OPT("interlaced")
        p->b_interlaced = atobool(value);
399 400
    OPT("constrained-intra")
        p->b_constrained_intra = atobool(value);
401 402 403 404 405 406 407
    OPT("cqm")
    {
        if( strstr( value, "flat" ) )
            p->i_cqm_preset = X264_CQM_FLAT;
        else if( strstr( value, "jvt" ) )
            p->i_cqm_preset = X264_CQM_JVT;
        else
408
            p->psz_cqm_file = strdup(value);
409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469
    }
    OPT("cqmfile")
        p->psz_cqm_file = strdup(value);
    OPT("cqm4")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_4iy, 16 );
        b_error |= parse_cqm( value, p->cqm_4ic, 16 );
        b_error |= parse_cqm( value, p->cqm_4py, 16 );
        b_error |= parse_cqm( value, p->cqm_4pc, 16 );
    }
    OPT("cqm8")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_8iy, 64 );
        b_error |= parse_cqm( value, p->cqm_8py, 64 );
    }
    OPT("cqm4i")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_4iy, 16 );
        b_error |= parse_cqm( value, p->cqm_4ic, 16 );
    }
    OPT("cqm4p")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_4py, 16 );
        b_error |= parse_cqm( value, p->cqm_4pc, 16 );
    }
    OPT("cqm4iy")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_4iy, 16 );
    }
    OPT("cqm4ic")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_4ic, 16 );
    }
    OPT("cqm4py")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_4py, 16 );
    }
    OPT("cqm4pc")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_4pc, 16 );
    }
    OPT("cqm8i")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_8iy, 64 );
    }
    OPT("cqm8p")
    {
        p->i_cqm_preset = X264_CQM_CUSTOM;
        b_error |= parse_cqm( value, p->cqm_8py, 64 );
    }
    OPT("log")
        p->i_log_level = atoi(value);
470 471 472 473
#ifdef VISUALIZE
    OPT("visualize")
        p->b_visualize = atobool(value);
#endif
474 475
    OPT("dump-yuv")
        p->psz_dump_yuv = strdup(value);
476
    OPT2("analyse", "partitions")
477 478 479 480 481 482 483 484 485 486 487 488 489
    {
        p->analyse.inter = 0;
        if( strstr( value, "none" ) )  p->analyse.inter =  0;
        if( strstr( value, "all" ) )   p->analyse.inter = ~0;

        if( strstr( value, "i4x4" ) )  p->analyse.inter |= X264_ANALYSE_I4x4;
        if( strstr( value, "i8x8" ) )  p->analyse.inter |= X264_ANALYSE_I8x8;
        if( strstr( value, "p8x8" ) )  p->analyse.inter |= X264_ANALYSE_PSUB16x16;
        if( strstr( value, "p4x4" ) )  p->analyse.inter |= X264_ANALYSE_PSUB8x8;
        if( strstr( value, "b8x8" ) )  p->analyse.inter |= X264_ANALYSE_BSUB16x16;
    }
    OPT("8x8dct")
        p->analyse.b_transform_8x8 = atobool(value);
490
    OPT2("weightb", "weight-b")
491
        p->analyse.b_weighted_bipred = atobool(value);
492
    OPT2("direct", "direct-pred")
493 494 495 496 497
        b_error |= parse_enum( value, x264_direct_pred_names, &p->analyse.i_direct_mv_pred );
    OPT("chroma-qp-offset")
        p->analyse.i_chroma_qp_offset = atoi(value);
    OPT("me")
        b_error |= parse_enum( value, x264_motion_est_names, &p->analyse.i_me_method );
498
    OPT2("merange", "me-range")
499
        p->analyse.i_me_range = atoi(value);
Loren Merritt's avatar
Loren Merritt committed
500
    OPT2("mvrange", "mv-range")
501
        p->analyse.i_mv_range = atoi(value);
Loren Merritt's avatar
Loren Merritt committed
502 503
    OPT2("mvrange-thread", "mv-range-thread")
        p->analyse.i_mv_range_thread = atoi(value);
504
    OPT2("subme", "subq")
505
        p->analyse.i_subpel_refine = atoi(value);
506 507 508 509 510 511 512 513 514 515 516 517 518 519 520
    OPT("psy-rd")
    {
        if( 2 == sscanf( value, "%f:%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
            2 == sscanf( value, "%f,%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) )
        { }
        else if( sscanf( value, "%f", &p->analyse.f_psy_rd ) )
        {
            p->analyse.f_psy_trellis = 0;
        }
        else
        {
            p->analyse.f_psy_rd = 0;
            p->analyse.f_psy_trellis = 0;
        }
    }
Fiona Glaser's avatar
Fiona Glaser committed
521 522
    OPT("psy")
        p->analyse.b_psy = atobool(value);
523 524 525 526 527 528 529 530 531 532
    OPT("chroma-me")
        p->analyse.b_chroma_me = atobool(value);
    OPT("mixed-refs")
        p->analyse.b_mixed_references = atobool(value);
    OPT("trellis")
        p->analyse.i_trellis = atoi(value);
    OPT("fast-pskip")
        p->analyse.b_fast_pskip = atobool(value);
    OPT("dct-decimate")
        p->analyse.b_dct_decimate = atobool(value);
533 534 535 536
    OPT("deadzone-inter")
        p->analyse.i_luma_deadzone[0] = atoi(value);
    OPT("deadzone-intra")
        p->analyse.i_luma_deadzone[1] = atoi(value);
537 538 539 540 541 542 543
    OPT("nr")
        p->analyse.i_noise_reduction = atoi(value);
    OPT("bitrate")
    {
        p->rc.i_bitrate = atoi(value);
        p->rc.i_rc_method = X264_RC_ABR;
    }
544
    OPT2("qp", "qp_constant")
545 546 547 548 549 550
    {
        p->rc.i_qp_constant = atoi(value);
        p->rc.i_rc_method = X264_RC_CQP;
    }
    OPT("crf")
    {
551
        p->rc.f_rf_constant = atof(value);
552 553
        p->rc.i_rc_method = X264_RC_CRF;
    }
Fiona Glaser's avatar
Fiona Glaser committed
554 555
    OPT("rc-lookahead")
        p->rc.i_lookahead = atoi(value);
556
    OPT2("qpmin", "qp-min")
557
        p->rc.i_qp_min = atoi(value);
558
    OPT2("qpmax", "qp-max")
559
        p->rc.i_qp_max = atoi(value);
560
    OPT2("qpstep", "qp-step")
561 562 563 564 565 566 567 568 569
        p->rc.i_qp_step = atoi(value);
    OPT("ratetol")
        p->rc.f_rate_tolerance = !strncmp("inf", value, 3) ? 1e9 : atof(value);
    OPT("vbv-maxrate")
        p->rc.i_vbv_max_bitrate = atoi(value);
    OPT("vbv-bufsize")
        p->rc.i_vbv_buffer_size = atoi(value);
    OPT("vbv-init")
        p->rc.f_vbv_buffer_init = atof(value);
570
    OPT2("ipratio", "ip-factor")
571
        p->rc.f_ip_factor = atof(value);
572
    OPT2("pbratio", "pb-factor")
573
        p->rc.f_pb_factor = atof(value);
574 575 576 577
    OPT("aq-mode")
        p->rc.i_aq_mode = atoi(value);
    OPT("aq-strength")
        p->rc.f_aq_strength = atof(value);
578 579 580 581 582 583 584 585 586 587 588 589 590
    OPT("pass")
    {
        int i = x264_clip3( atoi(value), 0, 3 );
        p->rc.b_stat_write = i & 1;
        p->rc.b_stat_read = i & 2;
    }
    OPT("stats")
    {
        p->rc.psz_stat_in = strdup(value);
        p->rc.psz_stat_out = strdup(value);
    }
    OPT("qcomp")
        p->rc.f_qcompress = atof(value);
Fiona Glaser's avatar
Fiona Glaser committed
591 592
    OPT("mbtree")
        p->rc.b_mb_tree = atobool(value);
593 594
    OPT("qblur")
        p->rc.f_qblur = atof(value);
595
    OPT2("cplxblur", "cplx-blur")
596 597 598 599 600
        p->rc.f_complexity_blur = atof(value);
    OPT("zones")
        p->rc.psz_zones = strdup(value);
    OPT("psnr")
        p->analyse.b_psnr = atobool(value);
601 602
    OPT("ssim")
        p->analyse.b_ssim = atobool(value);
603 604 605 606
    OPT("aud")
        p->b_aud = atobool(value);
    OPT("sps-id")
        p->i_sps_id = atoi(value);
607 608
    OPT("global-header")
        p->b_repeat_headers = !atobool(value);
609 610
    OPT("repeat-headers")
        p->b_repeat_headers = atobool(value);
611 612
    OPT("annexb")
        p->b_annexb = atobool(value);
613 614 615
    else
        return X264_PARAM_BAD_NAME;
#undef OPT
616
#undef OPT2
617
#undef atobool
618 619 620 621 622
#undef atoi
#undef atof

    if( name_buf )
        free( name_buf );
623

624
    b_error |= value_was_null && !name_was_bool;
625 626 627
    return b_error ? X264_PARAM_BAD_VALUE : 0;
}

628 629 630 631 632
/****************************************************************************
 * x264_log:
 ****************************************************************************/
void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
{
633
    if( !h || i_level <= h->param.i_log_level )
634 635 636
    {
        va_list arg;
        va_start( arg, psz_fmt );
637 638 639 640
        if( !h )
            x264_log_default( NULL, i_level, psz_fmt, arg );
        else
            h->param.pf_log( h->param.p_log_private, i_level, psz_fmt, arg );
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669
        va_end( arg );
    }
}

static void x264_log_default( void *p_unused, int i_level, const char *psz_fmt, va_list arg )
{
    char *psz_prefix;
    switch( i_level )
    {
        case X264_LOG_ERROR:
            psz_prefix = "error";
            break;
        case X264_LOG_WARNING:
            psz_prefix = "warning";
            break;
        case X264_LOG_INFO:
            psz_prefix = "info";
            break;
        case X264_LOG_DEBUG:
            psz_prefix = "debug";
            break;
        default:
            psz_prefix = "unknown";
            break;
    }
    fprintf( stderr, "x264 [%s]: ", psz_prefix );
    vfprintf( stderr, psz_fmt, arg );
}

Laurent Aimar's avatar
Laurent Aimar committed
670 671 672
/****************************************************************************
 * x264_picture_alloc:
 ****************************************************************************/
673
int x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
Laurent Aimar's avatar
Laurent Aimar committed
674 675 676 677
{
    pic->i_type = X264_TYPE_AUTO;
    pic->i_qpplus1 = 0;
    pic->img.i_csp = i_csp;
678 679
    pic->img.i_plane = 3;
    pic->img.plane[0] = x264_malloc( 3 * i_width * i_height / 2 );
680 681
    if( !pic->img.plane[0] )
        return -1;
682 683 684 685 686
    pic->img.plane[1] = pic->img.plane[0] + i_width * i_height;
    pic->img.plane[2] = pic->img.plane[1] + i_width * i_height / 4;
    pic->img.i_stride[0] = i_width;
    pic->img.i_stride[1] = i_width / 2;
    pic->img.i_stride[2] = i_width / 2;
687
    pic->param = NULL;
688
    return 0;
Laurent Aimar's avatar
Laurent Aimar committed
689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
}

/****************************************************************************
 * x264_picture_clean:
 ****************************************************************************/
void x264_picture_clean( x264_picture_t *pic )
{
    x264_free( pic->img.plane[0] );

    /* just to be safe */
    memset( pic, 0, sizeof( x264_picture_t ) );
}

/****************************************************************************
 * x264_nal_encode:
 ****************************************************************************/
705
int x264_nal_encode( uint8_t *dst, int b_annexb, x264_nal_t *nal )
Laurent Aimar's avatar
Laurent Aimar committed
706 707
{
    uint8_t *src = nal->p_payload;
708 709 710
    uint8_t *end = nal->p_payload + nal->i_payload;
    uint8_t *orig_dst = dst;
    int i_count = 0, size;
Laurent Aimar's avatar
Laurent Aimar committed
711

712 713
    /* long nal start code (we always use long ones) */
    if( b_annexb )
Laurent Aimar's avatar
Laurent Aimar committed
714 715 716 717 718 719
    {
        *dst++ = 0x00;
        *dst++ = 0x00;
        *dst++ = 0x00;
        *dst++ = 0x01;
    }
720 721
    else /* save room for size later */
        dst += 4;
Laurent Aimar's avatar
Laurent Aimar committed
722 723 724 725 726 727

    /* nal header */
    *dst++ = ( 0x00 << 7 ) | ( nal->i_ref_idc << 5 ) | nal->i_type;

    while( src < end )
    {
Fiona Glaser's avatar
Fiona Glaser committed
728 729
        if( i_count == 2 && *src <= 0x03 )
        {
Laurent Aimar's avatar
Laurent Aimar committed
730
            *dst++ = 0x03;
Fiona Glaser's avatar
Fiona Glaser committed
731 732 733 734 735 736
            i_count = 0;
        }
        if( *src == 0 )
            i_count++;
        else
            i_count = 0;
Laurent Aimar's avatar
Laurent Aimar committed
737 738
        *dst++ = *src++;
    }
739 740 741 742 743 744 745 746 747 748 749
    size = (dst - orig_dst) - 4;

    /* Write the size header for mp4/etc */
    if( !b_annexb )
    {
        /* Size doesn't include the size of the header we're writing now. */
        orig_dst[0] = size>>24;
        orig_dst[1] = size>>16;
        orig_dst[2] = size>> 8;
        orig_dst[3] = size>> 0;
    }
Laurent Aimar's avatar
Laurent Aimar committed
750

751
    return size+4;
Laurent Aimar's avatar
Laurent Aimar committed
752 753 754 755 756 757 758 759 760
}



/****************************************************************************
 * x264_malloc:
 ****************************************************************************/
void *x264_malloc( int i_size )
{
761
    uint8_t *align_buf = NULL;
762 763
#ifdef SYS_MACOSX
    /* Mac OS X always returns 16 bytes aligned memory */
764
    align_buf = malloc( i_size );
765
#elif defined( HAVE_MALLOC_H )
766
    align_buf = memalign( 16, i_size );
Laurent Aimar's avatar
Laurent Aimar committed
767
#else
768 769 770 771 772 773 774 775
    uint8_t *buf = malloc( i_size + 15 + sizeof(void **) + sizeof(int) );
    if( buf )
    {
        align_buf = buf + 15 + sizeof(void **) + sizeof(int);
        align_buf -= (intptr_t) align_buf & 15;
        *( (void **) ( align_buf - sizeof(void **) ) ) = buf;
        *( (int *) ( align_buf - sizeof(void **) - sizeof(int) ) ) = i_size;
    }
Laurent Aimar's avatar
Laurent Aimar committed
776
#endif
777 778 779
    if( !align_buf )
        x264_log( NULL, X264_LOG_ERROR, "malloc of size %d failed\n", i_size );
    return align_buf;
Laurent Aimar's avatar
Laurent Aimar committed
780 781 782 783 784 785 786 787 788
}

/****************************************************************************
 * x264_free:
 ****************************************************************************/
void x264_free( void *p )
{
    if( p )
    {
789
#if defined( HAVE_MALLOC_H ) || defined( SYS_MACOSX )
Laurent Aimar's avatar
Laurent Aimar committed
790 791 792 793 794 795 796
        free( p );
#else
        free( *( ( ( void **) p ) - 1 ) );
#endif
    }
}

Loren Merritt's avatar
Loren Merritt committed
797 798 799 800 801 802 803 804 805 806 807 808 809
/****************************************************************************
 * x264_reduce_fraction:
 ****************************************************************************/
void x264_reduce_fraction( int *n, int *d )
{
    int a = *n;
    int b = *d;
    int c;
    if( !a || !b )
        return;
    c = a % b;
    while(c)
    {
Fiona Glaser's avatar
Fiona Glaser committed
810 811 812
        a = b;
        b = c;
        c = a % b;
Loren Merritt's avatar
Loren Merritt committed
813 814 815 816 817
    }
    *n /= b;
    *d /= b;
}

818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848
/****************************************************************************
 * x264_slurp_file:
 ****************************************************************************/
char *x264_slurp_file( const char *filename )
{
    int b_error = 0;
    int i_size;
    char *buf;
    FILE *fh = fopen( filename, "rb" );
    if( !fh )
        return NULL;
    b_error |= fseek( fh, 0, SEEK_END ) < 0;
    b_error |= ( i_size = ftell( fh ) ) <= 0;
    b_error |= fseek( fh, 0, SEEK_SET ) < 0;
    if( b_error )
        return NULL;
    buf = x264_malloc( i_size+2 );
    if( buf == NULL )
        return NULL;
    b_error |= fread( buf, 1, i_size, fh ) != i_size;
    if( buf[i_size-1] != '\n' )
        buf[i_size++] = '\n';
    buf[i_size] = 0;
    fclose( fh );
    if( b_error )
    {
        x264_free( buf );
        return NULL;
    }
    return buf;
}
849 850 851 852 853 854

/****************************************************************************
 * x264_param2string:
 ****************************************************************************/
char *x264_param2string( x264_param_t *p, int b_res )
{
855 856 857 858 859
    int len = 1000;
    char *buf, *s;
    if( p->rc.psz_zones )
        len += strlen(p->rc.psz_zones);
    buf = s = x264_malloc( len );
860 861
    if( !buf )
        return NULL;
862 863 864 865 866 867 868 869 870 871 872 873 874 875

    if( b_res )
    {
        s += sprintf( s, "%dx%d ", p->i_width, p->i_height );
        s += sprintf( s, "fps=%d/%d ", p->i_fps_num, p->i_fps_den );
    }

    s += sprintf( s, "cabac=%d", p->b_cabac );
    s += sprintf( s, " ref=%d", p->i_frame_reference );
    s += sprintf( s, " deblock=%d:%d:%d", p->b_deblocking_filter,
                  p->i_deblocking_filter_alphac0, p->i_deblocking_filter_beta );
    s += sprintf( s, " analyse=%#x:%#x", p->analyse.intra, p->analyse.inter );
    s += sprintf( s, " me=%s", x264_motion_est_names[ p->analyse.i_me_method ] );
    s += sprintf( s, " subme=%d", p->analyse.i_subpel_refine );
Fiona Glaser's avatar
Fiona Glaser committed
876 877 878
    s += sprintf( s, " psy=%d", p->analyse.b_psy );
    if( p->analyse.b_psy )
        s += sprintf( s, " psy_rd=%.1f:%.1f", p->analyse.f_psy_rd, p->analyse.f_psy_trellis );
879 880 881 882 883 884
    s += sprintf( s, " mixed_ref=%d", p->analyse.b_mixed_references );
    s += sprintf( s, " me_range=%d", p->analyse.i_me_range );
    s += sprintf( s, " chroma_me=%d", p->analyse.b_chroma_me );
    s += sprintf( s, " trellis=%d", p->analyse.i_trellis );
    s += sprintf( s, " 8x8dct=%d", p->analyse.b_transform_8x8 );
    s += sprintf( s, " cqm=%d", p->i_cqm_preset );
885
    s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
886
    s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
Loren Merritt's avatar
Loren Merritt committed
887
    s += sprintf( s, " threads=%d", p->i_threads );
Fiona Glaser's avatar
Fiona Glaser committed
888 889 890 891 892 893
    if( p->i_slice_count )
        s += sprintf( s, " slices=%d", p->i_slice_count );
    if( p->i_slice_max_size )
        s += sprintf( s, " slice_max_size=%d", p->i_slice_max_size );
    if( p->i_slice_max_mbs )
        s += sprintf( s, " slice_max_mbs=%d", p->i_slice_max_mbs );
894
    s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
895
    s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
896
    s += sprintf( s, " mbaff=%d", p->b_interlaced );
897
    s += sprintf( s, " constrained_intra=%d", p->b_constrained_intra );
898 899 900 901

    s += sprintf( s, " bframes=%d", p->i_bframe );
    if( p->i_bframe )
    {
902
        s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d wpredb=%d",
903
                      p->b_bframe_pyramid, p->i_bframe_adaptive, p->i_bframe_bias,
904
                      p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred );
905 906
    }

Fiona Glaser's avatar
Fiona Glaser committed
907 908
    s += sprintf( s, " keyint=%d keyint_min=%d scenecut=%d",
                  p->i_keyint_max, p->i_keyint_min, p->i_scenecut_threshold );
909

Fiona Glaser's avatar
Fiona Glaser committed
910
    if( p->rc.b_mb_tree || p->rc.i_vbv_buffer_size )
Fiona Glaser's avatar
Fiona Glaser committed
911 912 913
        s += sprintf( s, " rc_lookahead=%d", p->rc.i_lookahead );

    s += sprintf( s, " rc=%s mbtree=%d", p->rc.i_rc_method == X264_RC_ABR ?
914
                               ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_buffer_size ? "cbr" : "abr" )
Fiona Glaser's avatar
Fiona Glaser committed
915
                               : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp", p->rc.b_mb_tree );
916
    if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
917
    {
918
        if( p->rc.i_rc_method == X264_RC_CRF )
919
            s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
920 921 922
        else
            s += sprintf( s, " bitrate=%d ratetol=%.1f",
                          p->rc.i_bitrate, p->rc.f_rate_tolerance );
923 924
        s += sprintf( s, " qcomp=%.2f qpmin=%d qpmax=%d qpstep=%d",
                      p->rc.f_qcompress, p->rc.i_qp_min, p->rc.i_qp_max, p->rc.i_qp_step );
925 926 927
        if( p->rc.b_stat_read )
            s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
                          p->rc.f_complexity_blur, p->rc.f_qblur );
928
        if( p->rc.i_vbv_buffer_size )
929 930 931
            s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
                          p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
    }
932
    else if( p->rc.i_rc_method == X264_RC_CQP )
933
        s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
934
    if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
935 936
    {
        s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
Fiona Glaser's avatar
Fiona Glaser committed
937
        if( p->i_bframe && !p->rc.b_mb_tree )
938
            s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
939 940 941
        s += sprintf( s, " aq=%d", p->rc.i_aq_mode );
        if( p->rc.i_aq_mode )
            s += sprintf( s, ":%.2f", p->rc.f_aq_strength );
942 943 944
        if( p->rc.psz_zones )
            s += sprintf( s, " zones=%s", p->rc.psz_zones );
        else if( p->rc.i_zones )
945 946 947 948 949 950
            s += sprintf( s, " zones" );
    }

    return buf;
}