common.c 39.7 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 25 26
#include "common.h"
#include "cpu.h"

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

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

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

Laurent Aimar's avatar
Laurent Aimar committed
36 37 38
/****************************************************************************
 * x264_param_default:
 ****************************************************************************/
39
void x264_param_default( x264_param_t *param )
Laurent Aimar's avatar
Laurent Aimar committed
40 41 42 43 44 45
{
    /* */
    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->i_bframe_pyramid = X264_B_PYRAMID_NORMAL;
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;
Dylan Yudaken's avatar
Dylan Yudaken committed
139
    param->analyse.i_weighted_pred = X264_WEIGHTP_SMART;
140
    param->analyse.b_dct_decimate = 1;
141 142
    param->analyse.b_transform_8x8 = 1;
    param->analyse.i_trellis = 1;
143 144
    param->analyse.i_luma_deadzone[0] = 21;
    param->analyse.i_luma_deadzone[1] = 11;
145 146
    param->analyse.b_psnr = 0;
    param->analyse.b_ssim = 0;
147

Loren Merritt's avatar
Loren Merritt committed
148 149 150 151 152 153 154 155
    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 );

156
    param->b_repeat_headers = 1;
157
    param->b_annexb = 1;
158
    param->b_aud = 0;
159
    param->b_vfr_input = 1;
160
    param->b_dts_compress = 0;
Laurent Aimar's avatar
Laurent Aimar committed
161 162
}

163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426
static int x264_param_apply_preset( x264_param_t *param, const char *preset )
{
    if( !strcasecmp( preset, "ultrafast" ) )
    {
        param->i_frame_reference = 1;
        param->i_scenecut_threshold = 0;
        param->b_deblocking_filter = 0;
        param->b_cabac = 0;
        param->i_bframe = 0;
        param->analyse.intra = 0;
        param->analyse.inter = 0;
        param->analyse.b_transform_8x8 = 0;
        param->analyse.i_me_method = X264_ME_DIA;
        param->analyse.i_subpel_refine = 0;
        param->rc.i_aq_mode = 0;
        param->analyse.b_mixed_references = 0;
        param->analyse.i_trellis = 0;
        param->i_bframe_adaptive = X264_B_ADAPT_NONE;
        param->rc.b_mb_tree = 0;
        param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
    }
    else if( !strcasecmp( preset, "veryfast" ) )
    {
        param->analyse.inter = X264_ANALYSE_I8x8|X264_ANALYSE_I4x4;
        param->analyse.i_me_method = X264_ME_DIA;
        param->analyse.i_subpel_refine = 1;
        param->i_frame_reference = 1;
        param->analyse.b_mixed_references = 0;
        param->analyse.i_trellis = 0;
        param->rc.b_mb_tree = 0;
        param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
    }
    else if( !strcasecmp( preset, "faster" ) )
    {
        param->analyse.b_mixed_references = 0;
        param->i_frame_reference = 2;
        param->analyse.i_subpel_refine = 4;
        param->rc.b_mb_tree = 0;
        param->analyse.i_weighted_pred = X264_WEIGHTP_BLIND;
    }
    else if( !strcasecmp( preset, "fast" ) )
    {
        param->i_frame_reference = 2;
        param->analyse.i_subpel_refine = 6;
        param->rc.i_lookahead = 30;
    }
    else if( !strcasecmp( preset, "medium" ) )
    {
        /* Default is medium */
    }
    else if( !strcasecmp( preset, "slow" ) )
    {
        param->analyse.i_me_method = X264_ME_UMH;
        param->analyse.i_subpel_refine = 8;
        param->i_frame_reference = 5;
        param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
        param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
        param->rc.i_lookahead = 50;
    }
    else if( !strcasecmp( preset, "slower" ) )
    {
        param->analyse.i_me_method = X264_ME_UMH;
        param->analyse.i_subpel_refine = 9;
        param->i_frame_reference = 8;
        param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
        param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
        param->analyse.inter |= X264_ANALYSE_PSUB8x8;
        param->analyse.i_trellis = 2;
        param->rc.i_lookahead = 60;
    }
    else if( !strcasecmp( preset, "veryslow" ) )
    {
        param->analyse.i_me_method = X264_ME_UMH;
        param->analyse.i_subpel_refine = 10;
        param->analyse.i_me_range = 24;
        param->i_frame_reference = 16;
        param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
        param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
        param->analyse.inter |= X264_ANALYSE_PSUB8x8;
        param->analyse.i_trellis = 2;
        param->i_bframe = 8;
        param->rc.i_lookahead = 60;
    }
    else if( !strcasecmp( preset, "placebo" ) )
    {
        param->analyse.i_me_method = X264_ME_TESA;
        param->analyse.i_subpel_refine = 10;
        param->analyse.i_me_range = 24;
        param->i_frame_reference = 16;
        param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;
        param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_AUTO;
        param->analyse.inter |= X264_ANALYSE_PSUB8x8;
        param->analyse.b_fast_pskip = 0;
        param->analyse.i_trellis = 2;
        param->i_bframe = 16;
        param->rc.i_lookahead = 60;
    }
    else
    {
        fprintf( stderr, "x264 [error]: invalid preset '%s'\n", preset );
        return -1;
    }
    return 0;
}

static int x264_param_apply_tune( x264_param_t *param, const char *tune )
{
    char *tmp = x264_malloc( strlen( tune ) );
    if( !tmp )
        return -1;
    tmp = strcpy( tmp, tune );
    char *s = strtok( tmp, ",./-+" );
    int psy_tuning_used = 0;
    while( s )
    {
        if( !strncasecmp( s, "film", 4 ) )
        {
            if( psy_tuning_used++ ) goto psy_failure;
            param->i_deblocking_filter_alphac0 = -1;
            param->i_deblocking_filter_beta = -1;
            param->analyse.f_psy_trellis = 0.15;
        }
        else if( !strncasecmp( s, "animation", 9 ) )
        {
            if( psy_tuning_used++ ) goto psy_failure;
            param->i_frame_reference = param->i_frame_reference > 1 ? param->i_frame_reference*2 : 1;
            param->i_deblocking_filter_alphac0 = 1;
            param->i_deblocking_filter_beta = 1;
            param->analyse.f_psy_rd = 0.4;
            param->rc.f_aq_strength = 0.6;
            param->i_bframe += 2;
        }
        else if( !strncasecmp( s, "grain", 5 ) )
        {
            if( psy_tuning_used++ ) goto psy_failure;
            param->i_deblocking_filter_alphac0 = -2;
            param->i_deblocking_filter_beta = -2;
            param->analyse.f_psy_trellis = 0.25;
            param->analyse.b_dct_decimate = 0;
            param->rc.f_pb_factor = 1.1;
            param->rc.f_ip_factor = 1.1;
            param->rc.f_aq_strength = 0.5;
            param->analyse.i_luma_deadzone[0] = 6;
            param->analyse.i_luma_deadzone[1] = 6;
            param->rc.f_qcompress = 0.8;
        }
        else if( !strncasecmp( s, "psnr", 4 ) )
        {
            if( psy_tuning_used++ ) goto psy_failure;
            param->rc.i_aq_mode = X264_AQ_NONE;
            param->analyse.b_psy = 0;
        }
        else if( !strncasecmp( s, "ssim", 4 ) )
        {
            if( psy_tuning_used++ ) goto psy_failure;
            param->rc.i_aq_mode = X264_AQ_AUTOVARIANCE;
            param->analyse.b_psy = 0;
        }
        else if( !strncasecmp( s, "fastdecode", 10 ) )
        {
            param->b_deblocking_filter = 0;
            param->b_cabac = 0;
            param->analyse.b_weighted_bipred = 0;
            param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
        }
        else if( !strncasecmp( s, "zerolatency", 11 ) )
        {
            param->rc.i_lookahead = 0;
            param->i_sync_lookahead = 0;
            param->i_bframe = 0;
            param->b_sliced_threads = 1;
        }
        else if( !strncasecmp( s, "touhou", 6 ) )
        {
            if( psy_tuning_used++ ) goto psy_failure;
            param->i_frame_reference = param->i_frame_reference > 1 ? param->i_frame_reference*2 : 1;
            param->i_deblocking_filter_alphac0 = -1;
            param->i_deblocking_filter_beta = -1;
            param->analyse.f_psy_trellis = 0.2;
            param->rc.f_aq_strength = 1.3;
            if( param->analyse.inter & X264_ANALYSE_PSUB16x16 )
                param->analyse.inter |= X264_ANALYSE_PSUB8x8;
        }
        else
        {
            fprintf( stderr, "x264 [error]: invalid tune '%s'\n", s );
            return -1;
        }
        if( 0 )
        {
    psy_failure:
            fprintf( stderr, "x264 [warning]: only 1 psy tuning can be used: ignoring tune %s\n", s );
        }
        s = strtok( NULL, ",./-+" );
    }
    return 0;
}

int x264_param_default_preset( x264_param_t *param, const char *preset, const char *tune )
{
    x264_param_default( param );

    if( preset && x264_param_apply_preset( param, preset ) < 0 )
        return -1;
    if( tune && x264_param_apply_tune( param, tune ) < 0 )
        return -1;
    return 0;
}

void x264_param_apply_fastfirstpass( x264_param_t *param )
{
    /* Set faster options in case of turbo firstpass. */
    if( param->rc.b_stat_read && !param->rc.b_stat_write )
    {
        param->i_frame_reference = 1;
        param->analyse.b_transform_8x8 = 0;
        param->analyse.inter = 0;
        param->analyse.i_me_method = X264_ME_DIA;
        param->analyse.i_subpel_refine = X264_MIN( 2, param->analyse.i_subpel_refine );
        param->analyse.i_trellis = 0;
    }
}

int x264_param_apply_profile( x264_param_t *param, const char *profile )
{
    if( !profile )
        return 0;

    if( !strcasecmp( profile, "baseline" ) )
    {
        param->analyse.b_transform_8x8 = 0;
        param->b_cabac = 0;
        param->i_cqm_preset = X264_CQM_FLAT;
        param->i_bframe = 0;
        param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
        if( param->b_interlaced )
        {
            fprintf( stderr, "x264 [error]: baseline profile doesn't support interlacing\n" );
            return -1;
        }
    }
    else if( !strcasecmp( profile, "main" ) )
    {
        param->analyse.b_transform_8x8 = 0;
        param->i_cqm_preset = X264_CQM_FLAT;
    }
    else if( !strcasecmp( profile, "high" ) )
    {
        /* Default */
    }
    else
    {
        fprintf( stderr, "x264 [error]: invalid profile: %s\n", profile );
        return -1;
    }
    if( (param->rc.i_rc_method == X264_RC_CQP && param->rc.i_qp_constant == 0) ||
        (param->rc.i_rc_method == X264_RC_CRF && param->rc.f_rf_constant == 0) )
    {
        fprintf( stderr, "x264 [error]: %s profile doesn't support lossless\n", profile );
        return -1;
    }
    return 0;
}

427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450
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;
}

451
static int x264_atobool( const char *str, int *b_error )
452
{
Loren Merritt's avatar
Loren Merritt committed
453 454
    if( !strcmp(str, "1") ||
        !strcmp(str, "true") ||
455 456
        !strcmp(str, "yes") )
        return 1;
Loren Merritt's avatar
Loren Merritt committed
457 458
    if( !strcmp(str, "0") ||
        !strcmp(str, "false") ||
459 460
        !strcmp(str, "no") )
        return 0;
461 462 463 464 465 466 467 468 469 470 471
    *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;
472 473
}

474 475 476 477 478 479 480 481 482 483 484 485
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 )
486 487 488

int x264_param_parse( x264_param_t *p, const char *name, const char *value )
{
489
    char *name_buf = NULL;
490
    int b_error = 0;
491 492
    int name_was_bool;
    int value_was_null = !value;
493 494 495 496 497
    int i;

    if( !name )
        return X264_PARAM_BAD_NAME;
    if( !value )
498
        value = "true";
499 500 501 502

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

503 504 505 506 507 508 509 510 511
    if( strchr( name, '_' ) ) // s/_/-/g
    {
        char *p;
        name_buf = strdup(name);
        while( (p = strchr( name_buf, '_' )) )
            *p = '-';
        name = name_buf;
    }

512 513 514 515 516 517
    if( (!strncmp( name, "no-", 3 ) && (i = 3)) ||
        (!strncmp( name, "no", 2 ) && (i = 2)) )
    {
        name += i;
        value = atobool(value) ? "false" : "true";
    }
518
    name_was_bool = 0;
519 520

#define OPT(STR) else if( !strcmp( name, STR ) )
521
#define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
522 523
    if(0);
    OPT("asm")
524 525 526 527 528 529
    {
        p->cpu = isdigit(value[0]) ? atoi(value) :
                 !strcmp(value, "auto") || atobool(value) ? x264_cpu_detect() : 0;
        if( b_error )
        {
            char *buf = strdup(value);
530
            char *tok, UNUSED *saveptr=NULL, *init;
531 532 533 534 535 536 537 538 539 540 541 542
            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 );
        }
    }
543
    OPT("threads")
544 545
    {
        if( !strcmp(value, "auto") )
546
            p->i_threads = X264_THREADS_AUTO;
547 548 549
        else
            p->i_threads = atoi(value);
    }
550 551
    OPT("sliced-threads")
        p->b_sliced_threads = atobool(value);
Steven Walters's avatar
Steven Walters committed
552 553 554 555 556 557 558
    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
559 560
    OPT2("deterministic", "n-deterministic")
        p->b_deterministic = atobool(value);
561
    OPT2("level", "level-idc")
562 563 564 565 566 567 568 569 570 571 572 573 574
    {
        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 );
575
    OPT("videoformat")
576 577 578
        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 );
579
    OPT("colorprim")
580 581 582
        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 );
583
    OPT("colormatrix")
584 585 586 587 588 589 590 591 592 593
        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 )
            ;
594
        else
595
        {
596
            float fps = atof(value);
597 598 599 600
            p->i_fps_num = (int)(fps * 1000 + .5);
            p->i_fps_den = 1000;
        }
    }
601
    OPT2("ref", "frameref")
602 603 604 605 606 607 608
        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;
    }
609
    OPT2("min-keyint", "keyint-min")
610 611 612 613 614 615
    {
        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
616 617 618 619 620 621 622 623
    {
        p->i_scenecut_threshold = atobool(value);
        if( b_error || p->i_scenecut_threshold )
        {
            b_error = 0;
            p->i_scenecut_threshold = atoi(value);
        }
    }
Fiona Glaser's avatar
Fiona Glaser committed
624 625
    OPT("intra-refresh")
        p->b_intra_refresh = atobool(value);
626 627 628
    OPT("bframes")
        p->i_bframe = atoi(value);
    OPT("b-adapt")
629 630 631 632 633 634 635 636
    {
        p->i_bframe_adaptive = atobool(value);
        if( b_error )
        {
            b_error = 0;
            p->i_bframe_adaptive = atoi(value);
        }
    }
637 638 639
    OPT("b-bias")
        p->i_bframe_bias = atoi(value);
    OPT("b-pyramid")
640
    {
641
        b_error |= parse_enum( value, x264_b_pyramid_names, &p->i_bframe_pyramid );
642 643 644 645 646 647
        if( b_error )
        {
            b_error = 0;
            p->i_bframe_pyramid = atoi(value);
        }
    }
648
    OPT("nf")
649
        p->b_deblocking_filter = !atobool(value);
650
    OPT2("filter", "deblock")
651
    {
652 653
        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 ) )
654 655
        {
            p->b_deblocking_filter = 1;
656 657 658 659 660
        }
        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;
661 662 663 664
        }
        else
            p->b_deblocking_filter = atobool(value);
    }
Fiona Glaser's avatar
Fiona Glaser committed
665 666 667 668 669 670
    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);
671 672 673 674
    OPT("cabac")
        p->b_cabac = atobool(value);
    OPT("cabac-idc")
        p->i_cabac_init_idc = atoi(value);
675 676
    OPT("interlaced")
        p->b_interlaced = atobool(value);
677 678
    OPT("constrained-intra")
        p->b_constrained_intra = atobool(value);
679 680 681 682 683 684 685
    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
686
            p->psz_cqm_file = strdup(value);
687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747
    }
    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);
748
#ifdef HAVE_VISUALIZE
749 750 751
    OPT("visualize")
        p->b_visualize = atobool(value);
#endif
752 753
    OPT("dump-yuv")
        p->psz_dump_yuv = strdup(value);
754
    OPT2("analyse", "partitions")
755 756 757 758 759 760 761 762 763 764 765 766 767
    {
        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);
768
    OPT2("weightb", "weight-b")
769
        p->analyse.b_weighted_bipred = atobool(value);
Dylan Yudaken's avatar
Dylan Yudaken committed
770 771
    OPT("weightp")
        p->analyse.i_weighted_pred = atoi(value);
772
    OPT2("direct", "direct-pred")
773 774 775 776 777
        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 );
778
    OPT2("merange", "me-range")
779
        p->analyse.i_me_range = atoi(value);
Loren Merritt's avatar
Loren Merritt committed
780
    OPT2("mvrange", "mv-range")
781
        p->analyse.i_mv_range = atoi(value);
Loren Merritt's avatar
Loren Merritt committed
782 783
    OPT2("mvrange-thread", "mv-range-thread")
        p->analyse.i_mv_range_thread = atoi(value);
784
    OPT2("subme", "subq")
785
        p->analyse.i_subpel_refine = atoi(value);
786 787 788
    OPT("psy-rd")
    {
        if( 2 == sscanf( value, "%f:%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
789 790
            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 ))
791 792 793 794 795 796 797 798 799 800 801
        { }
        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
802 803
    OPT("psy")
        p->analyse.b_psy = atobool(value);
804 805 806 807 808 809 810 811 812 813
    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);
814 815 816 817
    OPT("deadzone-inter")
        p->analyse.i_luma_deadzone[0] = atoi(value);
    OPT("deadzone-intra")
        p->analyse.i_luma_deadzone[1] = atoi(value);
818 819 820 821 822 823 824
    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;
    }
825
    OPT2("qp", "qp_constant")
826 827 828 829 830 831
    {
        p->rc.i_qp_constant = atoi(value);
        p->rc.i_rc_method = X264_RC_CQP;
    }
    OPT("crf")
    {
832
        p->rc.f_rf_constant = atof(value);
833 834
        p->rc.i_rc_method = X264_RC_CRF;
    }
Fiona Glaser's avatar
Fiona Glaser committed
835 836
    OPT("rc-lookahead")
        p->rc.i_lookahead = atoi(value);
837
    OPT2("qpmin", "qp-min")
838
        p->rc.i_qp_min = atoi(value);
839
    OPT2("qpmax", "qp-max")
840
        p->rc.i_qp_max = atoi(value);
841
    OPT2("qpstep", "qp-step")
842 843 844 845 846 847 848 849 850
        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);
851
    OPT2("ipratio", "ip-factor")
852
        p->rc.f_ip_factor = atof(value);
853
    OPT2("pbratio", "pb-factor")
854
        p->rc.f_pb_factor = atof(value);
855 856 857 858
    OPT("aq-mode")
        p->rc.i_aq_mode = atoi(value);
    OPT("aq-strength")
        p->rc.f_aq_strength = atof(value);
859 860 861 862 863 864 865 866 867 868 869 870 871
    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
872 873
    OPT("mbtree")
        p->rc.b_mb_tree = atobool(value);
874 875
    OPT("qblur")
        p->rc.f_qblur = atof(value);
876
    OPT2("cplxblur", "cplx-blur")
877 878 879 880 881
        p->rc.f_complexity_blur = atof(value);
    OPT("zones")
        p->rc.psz_zones = strdup(value);
    OPT("psnr")
        p->analyse.b_psnr = atobool(value);
882 883
    OPT("ssim")
        p->analyse.b_ssim = atobool(value);
884 885 886 887
    OPT("aud")
        p->b_aud = atobool(value);
    OPT("sps-id")
        p->i_sps_id = atoi(value);
888 889
    OPT("global-header")
        p->b_repeat_headers = !atobool(value);
890 891
    OPT("repeat-headers")
        p->b_repeat_headers = atobool(value);
892 893
    OPT("annexb")
        p->b_annexb = atobool(value);
894 895
    OPT("force-cfr")
        p->b_vfr_input = !atobool(value);
896 897 898
    else
        return X264_PARAM_BAD_NAME;
#undef OPT
899
#undef OPT2
900
#undef atobool
901 902 903 904 905
#undef atoi
#undef atof

    if( name_buf )
        free( name_buf );
906

907
    b_error |= value_was_null && !name_was_bool;
908 909 910
    return b_error ? X264_PARAM_BAD_VALUE : 0;
}

911 912 913 914 915
/****************************************************************************
 * x264_log:
 ****************************************************************************/
void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
{
916
    if( !h || i_level <= h->param.i_log_level )
917 918 919
    {
        va_list arg;
        va_start( arg, psz_fmt );
920 921 922 923
        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 );
924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952
        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
953 954 955
/****************************************************************************
 * x264_picture_alloc:
 ****************************************************************************/
956
int x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
Laurent Aimar's avatar
Laurent Aimar committed
957 958 959 960
{
    pic->i_type = X264_TYPE_AUTO;
    pic->i_qpplus1 = 0;
    pic->img.i_csp = i_csp;
961 962
    pic->img.i_plane = 3;
    pic->img.plane[0] = x264_malloc( 3 * i_width * i_height / 2 );
963 964
    if( !pic->img.plane[0] )
        return -1;
965 966 967 968 969
    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;
970
    pic->param = NULL;
971
    return 0;
Laurent Aimar's avatar
Laurent Aimar committed
972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987
}

/****************************************************************************
 * 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:
 ****************************************************************************/
988
int x264_nal_encode( uint8_t *dst, x264_nal_t *nal, int b_annexb, int b_long_startcode )
Laurent Aimar's avatar
Laurent Aimar committed
989 990
{
    uint8_t *src = nal->p_payload;
991 992 993
    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
994

995
    if( b_annexb )
Laurent Aimar's avatar
Laurent Aimar committed
996
    {
997 998
        if( b_long_startcode )
            *dst++ = 0x00;
Laurent Aimar's avatar
Laurent Aimar committed
999 1000 1001 1002
        *dst++ = 0x00;
        *dst++ = 0x00;
        *dst++ = 0x01;
    }
1003 1004
    else /* save room for size later */
        dst += 4;
Laurent Aimar's avatar
Laurent Aimar committed
1005 1006 1007 1008 1009 1010

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

    while( src < end )
    {
Fiona Glaser's avatar
Fiona Glaser committed
1011 1012
        if( i_count == 2 && *src <= 0x03 )
        {
Laurent Aimar's avatar
Laurent Aimar committed
1013
            *dst++ = 0x03;
Fiona Glaser's avatar
Fiona Glaser committed
1014 1015 1016 1017 1018 1019
            i_count = 0;
        }
        if( *src == 0 )
            i_count++;
        else
            i_count = 0;
Laurent Aimar's avatar
Laurent Aimar committed
1020 1021
        *dst++ = *src++;
    }
1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032
    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
1033

1034
    return size+4;
Laurent Aimar's avatar
Laurent Aimar committed
1035 1036 1037 1038 1039 1040 1041 1042 1043
}



/****************************************************************************
 * x264_malloc:
 ****************************************************************************/
void *x264_malloc( int i_size )
{
1044
    uint8_t *align_buf = NULL;
1045 1046
#ifdef SYS_MACOSX
    /* Mac OS X always returns 16 bytes aligned memory */
1047
    align_buf = malloc( i_size );
1048
#elif defined( HAVE_MALLOC_H )
1049
    align_buf = memalign( 16, i_size );
Laurent Aimar's avatar
Laurent Aimar committed
1050
#else
1051 1052 1053 1054 1055 1056 1057 1058
    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
1059
#endif
1060 1061 1062
    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
1063 1064 1065 1066 1067 1068 1069 1070 1071
}

/****************************************************************************
 * x264_free:
 ****************************************************************************/
void x264_free( void *p )
{
    if( p )
    {
1072
#if defined( HAVE_MALLOC_H ) || defined( SYS_MACOSX )
Laurent Aimar's avatar
Laurent Aimar committed
1073 1074 1075 1076 1077 1078 1079
        free( p );
#else
        free( *( ( ( void **) p ) - 1 ) );
#endif
    }
}

Loren Merritt's avatar
Loren Merritt committed
1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092
/****************************************************************************
 * 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
1093 1094 1095
        a = b;
        b = c;
        c = a % b;
Loren Merritt's avatar
Loren Merritt committed
1096 1097 1098 1099 1100
    }
    *n /= b;
    *d /= b;
}

1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131
/****************************************************************************
 * 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;
}
1132 1133 1134 1135 1136 1137

/****************************************************************************
 * x264_param2string:
 ****************************************************************************/
char *x264_param2string( x264_param_t *p, int b_res )
{
1138 1139 1140 1141 1142
    int len = 1000;
    char *buf, *s;
    if( p->rc.psz_zones )
        len += strlen(p->rc.psz_zones);
    buf = s = x264_malloc( len );
1143 1144
    if( !buf )
        return NULL;
1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158

    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
1159 1160
    s += sprintf( s, " psy=%d", p->analyse.b_psy );
    if( p->analyse.b_psy )
1161
        s += sprintf( s, " psy_rd=%.2f:%.2f", p->analyse.f_psy_rd, p->analyse.f_psy_trellis );
1162 1163 1164 1165 1166 1167
    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 );
1168
    s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
1169
    s += sprintf( s, " fast_pskip=%d", p->analyse.b_fast_pskip );
1170
    s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
Loren Merritt's avatar
Loren Merritt committed
1171
    s += sprintf( s, " threads=%d", p->i_threads );
1172
    s += sprintf( s, " sliced_threads=%d", p->b_sliced_threads );
Fiona Glaser's avatar
Fiona Glaser committed
1173 1174 1175 1176 1177 1178
    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 );
1179
    s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
1180
    s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
1181
    s += sprintf( s, " mbaff=%d", p->b_interlaced );
1182
    s += sprintf( s, " constrained_intra=%d", p->b_constrained_intra );
1183 1184 1185 1186

    s += sprintf( s, " bframes=%d", p->i_bframe );
    if( p->i_bframe )
    {
1187
        s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d wpredb=%d",
1188
                      p->i_bframe_pyramid, p->i_bframe_adaptive, p->i_bframe_bias,
1189
                      p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred );
1190
    }
Dylan Yudaken's avatar
Dylan Yudaken committed
1191
    s += sprintf( s, " wpredp=%d", p->analyse.i_weighted_pred > 0 ? p->analyse.i_weighted_pred : 0 );
1192

Fiona Glaser's avatar
Fiona Glaser committed
1193 1194
    s += sprintf( s, " keyint=%d keyint_min=%d scenecut=%d intra_refresh=%d",
                  p->i_keyint_max, p->i_keyint_min, p->i_scenecut_threshold, p->b_intra_refresh );
1195

Fiona Glaser's avatar
Fiona Glaser committed
1196
    if( p->rc.b_mb_tree || p->rc.i_vbv_buffer_size )
Fiona Glaser's avatar
Fiona Glaser committed
1197 1198 1199
        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 ?
1200
                               ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_buffer_size ? "cbr" : "abr" )
Fiona Glaser's avatar
Fiona Glaser committed
1201
                               : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp", p->rc.b_mb_tree );
1202
    if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
1203
    {
1204
        if( p->rc.i_rc_method == X264_RC_CRF )
1205
            s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
1206 1207 1208
        else
            s += sprintf( s, " bitrate=%d ratetol=%.1f",
                          p->rc.i_bitrate, p->rc.f_rate_tolerance );
1209 1210
        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 );
1211 1212 1213
        if( p->rc.b_stat_read )
            s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
                          p->rc.f_complexity_blur, p->rc.f_qblur );
1214
        if( p->rc.i_vbv_buffer_size )
1215 1216 1217
            s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
                          p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
    }
1218
    else if( p->rc.i_rc_method == X264_RC_CQP )
1219
        s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
1220
    if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
1221 1222
    {
        s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
Fiona Glaser's avatar
Fiona Glaser committed
1223
        if( p->i_bframe && !p->rc.b_mb_tree )
1224
            s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
1225 1226 1227
        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 );
1228 1229 1230
        if( p->rc.psz_zones )
            s += sprintf( s, " zones=%s", p->rc.psz_zones );
        else if( p->rc.i_zones )
1231 1232 1233 1234 1235 1236
            s += sprintf( s, " zones" );
    }

    return buf;
}