common.c 43.7 KB
Newer Older
1
/*****************************************************************************
2
 * common.c: misc common functions
3
 *****************************************************************************
Sean McGovern's avatar
Sean McGovern committed
4
 * Copyright (C) 2003-2011 x264 project
5
 *
6 7
 * Authors: Loren Merritt <lorenm@u.washington.edu>
 *          Laurent Aimar <fenrir@via.ecp.fr>
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.
22 23 24
 *
 * This program is also available under a commercial proprietary license.
 * For more information, contact us at licensing@x264.com.
25 26
 *****************************************************************************/

27 28
#include "common.h"

29
#include <stdarg.h>
30
#include <ctype.h>
31

Steven Walters's avatar
Steven Walters committed
32
#if HAVE_MALLOC_H
33 34 35
#include <malloc.h>
#endif

36 37
const int x264_bit_depth = BIT_DEPTH;

38 39
static void x264_log_default( void *, int, const char *, va_list );

40 41 42
/****************************************************************************
 * x264_param_default:
 ****************************************************************************/
43
void x264_param_default( x264_param_t *param )
44 45 46 47 48 49
{
    /* */
    memset( param, 0, sizeof( x264_param_t ) );

    /* CPU autodetect */
    param->cpu = x264_cpu_detect();
50
    param->i_threads = X264_THREADS_AUTO;
Loren Merritt's avatar
Loren Merritt committed
51
    param->b_deterministic = 1;
Steven Walters's avatar
Steven Walters committed
52
    param->i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
53 54 55 56 57 58 59

    /* 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;
60 61 62 63 64 65 66
    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 */
67 68
    param->i_fps_num       = 25;
    param->i_fps_den       = 1;
69
    param->i_level_idc     = -1;
70 71 72
    param->i_slice_max_size = 0;
    param->i_slice_max_mbs = 0;
    param->i_slice_count = 0;
73 74

    /* Encoder parameters */
75
    param->i_frame_reference = 3;
76
    param->i_keyint_max = 250;
77
    param->i_keyint_min = X264_KEYINT_MIN_AUTO;
78
    param->i_bframe = 3;
79
    param->i_scenecut_threshold = 40;
80
    param->i_bframe_adaptive = X264_B_ADAPT_FAST;
81
    param->i_bframe_bias = 0;
82
    param->i_bframe_pyramid = X264_B_PYRAMID_NORMAL;
83 84
    param->b_interlaced = 0;
    param->b_constrained_intra = 0;
85 86 87 88 89

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

90
    param->b_cabac = 1;
91
    param->i_cabac_init_idc = 0;
92

93
    param->rc.i_rc_method = X264_RC_CRF;
94
    param->rc.i_bitrate = 0;
Loren Merritt's avatar
Loren Merritt committed
95 96 97 98
    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;
99
    param->rc.i_qp_constant = 23 + QP_BD_OFFSET;
100
    param->rc.f_rf_constant = 23;
Fiona Glaser's avatar
Fiona Glaser committed
101
    param->rc.i_qp_min = 0;
102
    param->rc.i_qp_max = QP_MAX;
103
    param->rc.i_qp_step = 4;
104
    param->rc.f_ip_factor = 1.4;
105
    param->rc.f_pb_factor = 1.3;
106
    param->rc.i_aq_mode = X264_AQ_VARIANCE;
107
    param->rc.f_aq_strength = 1.0;
108
    param->rc.i_lookahead = 40;
109 110 111 112 113 114 115

    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;
116
    param->rc.f_complexity_blur = 20;
Loren Merritt's avatar
Loren Merritt committed
117
    param->rc.i_zones = 0;
118
    param->rc.b_mb_tree = 1;
119

120 121 122
    /* Log */
    param->pf_log = x264_log_default;
    param->p_log_private = NULL;
123
    param->i_log_level = X264_LOG_INFO;
124 125

    /* */
126
    param->analyse.intra = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8;
127 128
    param->analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8
                         | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_BSUB16x16;
129
    param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
130
    param->analyse.i_me_method = X264_ME_HEX;
131
    param->analyse.f_psy_rd = 1.0;
132
    param->analyse.b_psy = 1;
133
    param->analyse.f_psy_trellis = 0;
134
    param->analyse.i_me_range = 16;
135 136
    param->analyse.i_subpel_refine = 7;
    param->analyse.b_mixed_references = 1;
137
    param->analyse.b_chroma_me = 1;
Loren Merritt's avatar
Loren Merritt committed
138
    param->analyse.i_mv_range_thread = -1;
139
    param->analyse.i_mv_range = -1; // set from level_idc
140
    param->analyse.i_chroma_qp_offset = 0;
Loren Merritt's avatar
Loren Merritt committed
141
    param->analyse.b_fast_pskip = 1;
142
    param->analyse.b_weighted_bipred = 1;
143
    param->analyse.i_weighted_pred = X264_WEIGHTP_SMART;
144
    param->analyse.b_dct_decimate = 1;
145 146
    param->analyse.b_transform_8x8 = 1;
    param->analyse.i_trellis = 1;
147 148
    param->analyse.i_luma_deadzone[0] = 21;
    param->analyse.i_luma_deadzone[1] = 11;
149 150
    param->analyse.b_psnr = 0;
    param->analyse.b_ssim = 0;
151

Loren Merritt's avatar
Loren Merritt committed
152
    param->i_cqm_preset = X264_CQM_FLAT;
153 154 155 156 157 158
    memset( param->cqm_4iy, 16, sizeof( param->cqm_4iy ) );
    memset( param->cqm_4ic, 16, sizeof( param->cqm_4ic ) );
    memset( param->cqm_4py, 16, sizeof( param->cqm_4py ) );
    memset( param->cqm_4pc, 16, sizeof( param->cqm_4pc ) );
    memset( param->cqm_8iy, 16, sizeof( param->cqm_8iy ) );
    memset( param->cqm_8py, 16, sizeof( param->cqm_8py ) );
Loren Merritt's avatar
Loren Merritt committed
159

160
    param->b_repeat_headers = 1;
161
    param->b_annexb = 1;
162
    param->b_aud = 0;
163
    param->b_vfr_input = 1;
164 165 166
    param->i_nal_hrd = X264_NAL_HRD_NONE;
    param->b_tff = 1;
    param->b_pic_struct = 0;
167
    param->b_fake_interlaced = 0;
168
    param->i_frame_packing = -1;
169 170
}

171 172
static int x264_param_apply_preset( x264_param_t *param, const char *preset )
{
173 174 175 176 177
    char *end;
    int i = strtol( preset, &end, 10 );
    if( *end == 0 && i >= 0 && i < sizeof(x264_preset_names)/sizeof(*x264_preset_names)-1 )
        preset = x264_preset_names[i];

178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
    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;
196
        param->analyse.b_weighted_bipred = 0;
197
        param->rc.i_lookahead = 0;
198
    }
199
    else if( !strcasecmp( preset, "superfast" ) )
200 201 202 203 204 205 206 207
    {
        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;
208
        param->analyse.i_weighted_pred = X264_WEIGHTP_SIMPLE;
209
        param->rc.i_lookahead = 0;
210
    }
211 212 213 214 215 216 217
    else if( !strcasecmp( preset, "veryfast" ) )
    {
        param->analyse.i_me_method = X264_ME_HEX;
        param->analyse.i_subpel_refine = 2;
        param->i_frame_reference = 1;
        param->analyse.b_mixed_references = 0;
        param->analyse.i_trellis = 0;
218
        param->analyse.i_weighted_pred = X264_WEIGHTP_SIMPLE;
219
        param->rc.i_lookahead = 10;
220
    }
221 222 223 224 225
    else if( !strcasecmp( preset, "faster" ) )
    {
        param->analyse.b_mixed_references = 0;
        param->i_frame_reference = 2;
        param->analyse.i_subpel_refine = 4;
226
        param->analyse.i_weighted_pred = X264_WEIGHTP_SIMPLE;
227
        param->rc.i_lookahead = 20;
228 229 230 231 232
    }
    else if( !strcasecmp( preset, "fast" ) )
    {
        param->i_frame_reference = 2;
        param->analyse.i_subpel_refine = 6;
233
        param->analyse.i_weighted_pred = X264_WEIGHTP_SIMPLE;
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
        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
    {
289
        x264_log( NULL, X264_LOG_ERROR, "invalid preset '%s'\n", preset );
290 291 292 293 294 295 296
        return -1;
    }
    return 0;
}

static int x264_param_apply_tune( x264_param_t *param, const char *tune )
{
297
    char *tmp = x264_malloc( strlen( tune ) + 1 );
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
    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;
        }
336 337 338 339 340 341 342 343 344
        else if( !strncasecmp( s, "stillimage", 5 ) )
        {
            if( psy_tuning_used++ ) goto psy_failure;
            param->i_deblocking_filter_alphac0 = -3;
            param->i_deblocking_filter_beta = -3;
            param->analyse.f_psy_rd = 2.0;
            param->analyse.f_psy_trellis = 0.7;
            param->rc.f_aq_strength = 1.2;
        }
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
        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;
370
            param->b_vfr_input = 0;
371
            param->rc.b_mb_tree = 0;
372 373 374 375 376 377 378 379 380 381 382 383 384 385
        }
        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
        {
386
            x264_log( NULL, X264_LOG_ERROR, "invalid tune '%s'\n", s );
387
            x264_free( tmp );
388 389 390 391 392
            return -1;
        }
        if( 0 )
        {
    psy_failure:
393
            x264_log( NULL, X264_LOG_WARNING, "only 1 psy tuning can be used: ignoring tune %s\n", s );
394 395 396
        }
        s = strtok( NULL, ",./-+" );
    }
397
    x264_free( tmp );
398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414
    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. */
Fiona Glaser's avatar
Fiona Glaser committed
415
    if( param->rc.b_stat_write && !param->rc.b_stat_read )
416 417 418 419 420 421 422
    {
        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;
423
        param->analyse.b_fast_pskip = 1;
424 425 426 427 428 429 430 431
    }
}

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

432 433 434 435 436 437 438 439 440
#if BIT_DEPTH > 8
    if( !strcasecmp( profile, "baseline" ) || !strcasecmp( profile, "main" ) ||
        !strcasecmp( profile, "high" ) )
    {
        x264_log( NULL, X264_LOG_ERROR, "%s profile doesn't support a bit depth of %d.\n", profile, BIT_DEPTH );
        return -1;
    }
#endif

441 442 443 444 445
    if( !strcasecmp( profile, "baseline" ) )
    {
        param->analyse.b_transform_8x8 = 0;
        param->b_cabac = 0;
        param->i_cqm_preset = X264_CQM_FLAT;
446
        param->psz_cqm_file = NULL;
447 448 449 450
        param->i_bframe = 0;
        param->analyse.i_weighted_pred = X264_WEIGHTP_NONE;
        if( param->b_interlaced )
        {
451
            x264_log( NULL, X264_LOG_ERROR, "baseline profile doesn't support interlacing\n" );
452 453
            return -1;
        }
454
        if( param->b_fake_interlaced )
455 456 457 458
        {
            x264_log( NULL, X264_LOG_ERROR, "baseline profile doesn't support fake interlacing\n" );
            return -1;
        }
459 460 461 462 463
    }
    else if( !strcasecmp( profile, "main" ) )
    {
        param->analyse.b_transform_8x8 = 0;
        param->i_cqm_preset = X264_CQM_FLAT;
464
        param->psz_cqm_file = NULL;
465
    }
466
    else if( !strcasecmp( profile, "high" ) || !strcasecmp( profile, "high10" ) )
467 468 469 470 471
    {
        /* Default */
    }
    else
    {
472
        x264_log( NULL, X264_LOG_ERROR, "invalid profile: %s\n", profile );
473 474
        return -1;
    }
475 476
    if( (param->rc.i_rc_method == X264_RC_CQP && param->rc.i_qp_constant <= 0) ||
        (param->rc.i_rc_method == X264_RC_CRF && (int)(param->rc.f_rf_constant + QP_BD_OFFSET) <= 0) )
477
    {
478
        x264_log( NULL, X264_LOG_ERROR, "%s profile doesn't support lossless\n", profile );
479 480 481 482 483
        return -1;
    }
    return 0;
}

484 485
static int parse_enum( const char *arg, const char * const *names, int *dst )
{
486
    for( int i = 0; names[i]; i++ )
487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506
        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;
}

507
static int x264_atobool( const char *str, int *b_error )
508
{
Loren Merritt's avatar
Loren Merritt committed
509 510
    if( !strcmp(str, "1") ||
        !strcmp(str, "true") ||
511 512
        !strcmp(str, "yes") )
        return 1;
Loren Merritt's avatar
Loren Merritt committed
513 514
    if( !strcmp(str, "0") ||
        !strcmp(str, "false") ||
515 516
        !strcmp(str, "no") )
        return 0;
517 518 519 520 521 522 523 524 525 526 527
    *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;
528 529
}

530 531 532 533 534 535 536 537 538 539 540 541
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 )
542 543 544

int x264_param_parse( x264_param_t *p, const char *name, const char *value )
{
545
    char *name_buf = NULL;
546
    int b_error = 0;
547 548
    int name_was_bool;
    int value_was_null = !value;
549 550 551 552 553
    int i;

    if( !name )
        return X264_PARAM_BAD_NAME;
    if( !value )
554
        value = "true";
555 556 557 558

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

559 560
    if( strchr( name, '_' ) ) // s/_/-/g
    {
561
        char *c;
562
        name_buf = strdup(name);
563 564
        while( (c = strchr( name_buf, '_' )) )
            *c = '-';
565 566 567
        name = name_buf;
    }

568 569 570 571 572 573
    if( (!strncmp( name, "no-", 3 ) && (i = 3)) ||
        (!strncmp( name, "no", 2 ) && (i = 2)) )
    {
        name += i;
        value = atobool(value) ? "false" : "true";
    }
574
    name_was_bool = 0;
575 576

#define OPT(STR) else if( !strcmp( name, STR ) )
577
#define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
578 579
    if(0);
    OPT("asm")
580 581 582 583 584 585
    {
        p->cpu = isdigit(value[0]) ? atoi(value) :
                 !strcmp(value, "auto") || atobool(value) ? x264_cpu_detect() : 0;
        if( b_error )
        {
            char *buf = strdup(value);
586
            char *tok, UNUSED *saveptr=NULL, *init;
587 588 589 590 591 592 593 594 595 596 597 598
            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 );
        }
    }
599
    OPT("threads")
600 601
    {
        if( !strcmp(value, "auto") )
602
            p->i_threads = X264_THREADS_AUTO;
603 604 605
        else
            p->i_threads = atoi(value);
    }
606 607
    OPT("sliced-threads")
        p->b_sliced_threads = atobool(value);
Steven Walters's avatar
Steven Walters committed
608 609 610 611 612 613 614
    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
615 616
    OPT2("deterministic", "n-deterministic")
        p->b_deterministic = atobool(value);
617
    OPT2("level", "level-idc")
618
    {
619 620 621
        if( !strcmp(value, "1b") )
            p->i_level_idc = 9;
        else if( atof(value) < 6 )
622 623 624 625
            p->i_level_idc = (int)(10*atof(value)+.5);
        else
            p->i_level_idc = atoi(value);
    }
626 627
    OPT("bluray-compat")
        p->b_bluray_compat = atobool(value);
628 629 630 631 632 633 634
    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 );
635
    OPT("videoformat")
636 637 638
        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 );
639
    OPT("colorprim")
640 641 642
        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 );
643
    OPT("colormatrix")
644 645 646 647 648 649 650 651
        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")
    {
652
        if( sscanf( value, "%u/%u", &p->i_fps_num, &p->i_fps_den ) == 2 )
653
            ;
654
        else
655
        {
656
            float fps = atof(value);
657 658 659 660
            p->i_fps_num = (int)(fps * 1000 + .5);
            p->i_fps_den = 1000;
        }
    }
661
    OPT2("ref", "frameref")
662
        p->i_frame_reference = atoi(value);
663 664
    OPT("dpb-size")
        p->i_dpb_size = atoi(value);
665 666
    OPT("keyint")
    {
667 668 669 670
        if( strstr( value, "infinite" ) )
            p->i_keyint_max = X264_KEYINT_MAX_INFINITE;
        else
            p->i_keyint_max = atoi(value);
671
    }
672
    OPT2("min-keyint", "keyint-min")
673 674 675 676 677 678
    {
        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
679 680 681 682 683 684 685 686
    {
        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
687 688
    OPT("intra-refresh")
        p->b_intra_refresh = atobool(value);
689 690 691
    OPT("bframes")
        p->i_bframe = atoi(value);
    OPT("b-adapt")
692 693 694 695 696 697 698 699
    {
        p->i_bframe_adaptive = atobool(value);
        if( b_error )
        {
            b_error = 0;
            p->i_bframe_adaptive = atoi(value);
        }
    }
700 701 702
    OPT("b-bias")
        p->i_bframe_bias = atoi(value);
    OPT("b-pyramid")
703
    {
704
        b_error |= parse_enum( value, x264_b_pyramid_names, &p->i_bframe_pyramid );
705 706 707 708 709 710
        if( b_error )
        {
            b_error = 0;
            p->i_bframe_pyramid = atoi(value);
        }
    }
Lamont Alston's avatar
Lamont Alston committed
711
    OPT("open-gop")
712
        p->b_open_gop = atobool(value);
713
    OPT("nf")
714
        p->b_deblocking_filter = !atobool(value);
715
    OPT2("filter", "deblock")
716
    {
717 718
        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 ) )
719 720
        {
            p->b_deblocking_filter = 1;
721 722 723 724 725
        }
        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;
726 727 728 729
        }
        else
            p->b_deblocking_filter = atobool(value);
    }
730 731 732 733 734 735
    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);
736 737 738 739
    OPT("cabac")
        p->b_cabac = atobool(value);
    OPT("cabac-idc")
        p->i_cabac_init_idc = atoi(value);
740 741
    OPT("interlaced")
        p->b_interlaced = atobool(value);
742 743 744 745 746 747 748
    OPT("tff")
        p->b_interlaced = p->b_tff = atobool(value);
    OPT("bff")
    {
        p->b_interlaced = atobool(value);
        p->b_tff = !p->b_interlaced;
    }
749 750
    OPT("constrained-intra")
        p->b_constrained_intra = atobool(value);
751 752 753 754 755 756 757
    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
758
            p->psz_cqm_file = strdup(value);
759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819
    }
    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);
Steven Walters's avatar
Steven Walters committed
820
#if HAVE_VISUALIZE
821 822 823
    OPT("visualize")
        p->b_visualize = atobool(value);
#endif
824 825
    OPT("dump-yuv")
        p->psz_dump_yuv = strdup(value);
826
    OPT2("analyse", "partitions")
827 828 829 830 831 832 833 834 835 836 837 838 839
    {
        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);
840
    OPT2("weightb", "weight-b")
841
        p->analyse.b_weighted_bipred = atobool(value);
842 843
    OPT("weightp")
        p->analyse.i_weighted_pred = atoi(value);
844
    OPT2("direct", "direct-pred")
845 846 847 848 849
        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 );
850
    OPT2("merange", "me-range")
851
        p->analyse.i_me_range = atoi(value);
Loren Merritt's avatar
Loren Merritt committed
852
    OPT2("mvrange", "mv-range")
853
        p->analyse.i_mv_range = atoi(value);
Loren Merritt's avatar
Loren Merritt committed
854 855
    OPT2("mvrange-thread", "mv-range-thread")
        p->analyse.i_mv_range_thread = atoi(value);
856
    OPT2("subme", "subq")
857
        p->analyse.i_subpel_refine = atoi(value);
858 859 860
    OPT("psy-rd")
    {
        if( 2 == sscanf( value, "%f:%f", &p->analyse.f_psy_rd, &p->analyse.f_psy_trellis ) ||
861 862
            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 ))
863 864 865 866 867 868 869 870 871 872 873
        { }
        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;
        }
    }
874 875
    OPT("psy")
        p->analyse.b_psy = atobool(value);
876 877 878 879 880 881 882 883 884 885
    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);
886 887 888 889
    OPT("deadzone-inter")
        p->analyse.i_luma_deadzone[0] = atoi(value);
    OPT("deadzone-intra")
        p->analyse.i_luma_deadzone[1] = atoi(value);
890 891 892 893 894 895 896
    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;
    }
897
    OPT2("qp", "qp_constant")
898 899 900 901 902 903
    {
        p->rc.i_qp_constant = atoi(value);
        p->rc.i_rc_method = X264_RC_CQP;
    }
    OPT("crf")
    {
904
        p->rc.f_rf_constant = atof(value);
905 906
        p->rc.i_rc_method = X264_RC_CRF;
    }
907 908
    OPT("crf-max")
        p->rc.f_rf_constant_max = atof(value);
909 910
    OPT("rc-lookahead")
        p->rc.i_lookahead = atoi(value);
911
    OPT2("qpmin", "qp-min")
912
        p->rc.i_qp_min = atoi(value);
913
    OPT2("qpmax", "qp-max")
914
        p->rc.i_qp_max = atoi(value);
915
    OPT2("qpstep", "qp-step")
916 917 918 919 920 921 922 923 924
        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);
925
    OPT2("ipratio", "ip-factor")
926
        p->rc.f_ip_factor = atof(value);
927
    OPT2("pbratio", "pb-factor")
928
        p->rc.f_pb_factor = atof(value);
929 930 931 932
    OPT("aq-mode")
        p->rc.i_aq_mode = atoi(value);
    OPT("aq-strength")
        p->rc.f_aq_strength = atof(value);
933 934
    OPT("pass")
    {
935 936 937
        int pass = x264_clip3( atoi(value), 0, 3 );
        p->rc.b_stat_write = pass & 1;
        p->rc.b_stat_read = pass & 2;
938 939 940 941 942 943 944 945
    }
    OPT("stats")
    {
        p->rc.psz_stat_in = strdup(value);
        p->rc.psz_stat_out = strdup(value);
    }
    OPT("qcomp")
        p->rc.f_qcompress = atof(value);
946 947
    OPT("mbtree")
        p->rc.b_mb_tree = atobool(value);
948 949
    OPT("qblur")
        p->rc.f_qblur = atof(value);
950
    OPT2("cplxblur", "cplx-blur")
951 952 953
        p->rc.f_complexity_blur = atof(value);
    OPT("zones")
        p->rc.psz_zones = strdup(value);
954 955 956
    OPT("crop-rect")
        b_error |= sscanf( value, "%u,%u,%u,%u", &p->crop_rect.i_left, &p->crop_rect.i_top,
                                                 &p->crop_rect.i_right, &p->crop_rect.i_bottom ) != 4;
957 958
    OPT("psnr")
        p->analyse.b_psnr = atobool(value);
959 960
    OPT("ssim")
        p->analyse.b_ssim = atobool(value);
961 962 963 964
    OPT("aud")
        p->b_aud = atobool(value);
    OPT("sps-id")
        p->i_sps_id = atoi(value);
965 966
    OPT("global-header")
        p->b_repeat_headers = !atobool(value);
967 968
    OPT("repeat-headers")
        p->b_repeat_headers = atobool(value);
969 970
    OPT("annexb")
        p->b_annexb = atobool(value);
971 972
    OPT("force-cfr")
        p->b_vfr_input = !atobool(value);
973 974 975 976
    OPT("nal-hrd")
        b_error |= parse_enum( value, x264_nal_hrd_names, &p->i_nal_hrd );
    OPT("pic-struct")
        p->b_pic_struct = atobool(value);
977 978
    OPT("fake-interlaced")
        p->b_fake_interlaced = atobool(value);
979 980
    OPT("frame-packing")
        p->i_frame_packing = atoi(value);
981 982 983
    else
        return X264_PARAM_BAD_NAME;
#undef OPT
984
#undef OPT2
985
#undef atobool
986 987 988 989 990
#undef atoi
#undef atof

    if( name_buf )
        free( name_buf );
991

992
    b_error |= value_was_null && !name_was_bool;
993 994 995
    return b_error ? X264_PARAM_BAD_VALUE : 0;
}

996 997 998 999 1000
/****************************************************************************
 * x264_log:
 ****************************************************************************/
void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
{
1001
    if( !h || i_level <= h->param.i_log_level )
1002 1003 1004
    {
        va_list arg;
        va_start( arg, psz_fmt );
1005 1006 1007 1008
        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 );
1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037
        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 );
}

1038
/****************************************************************************
1039
 * x264_picture_init:
1040
 ****************************************************************************/
1041
void x264_picture_init( x264_picture_t *pic )
1042
{
1043
    memset( pic, 0, sizeof( x264_picture_t ) );
1044
    pic->i_type = X264_TYPE_AUTO;
1045
    pic->i_qpplus1 = X264_QP_AUTO;
1046 1047 1048 1049 1050 1051 1052 1053
    pic->i_pic_struct = PIC_STRUCT_AUTO;
}

/****************************************************************************
 * x264_picture_alloc:
 ****************************************************************************/
int x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
{
1054 1055 1056
    int csp = i_csp & X264_CSP_MASK;
    if( csp <= X264_CSP_NONE || csp >= X264_CSP_MAX )
        return -1;
1057
    x264_picture_init( pic );
1058
    pic->img.i_csp = i_csp;
1059
    pic->img.i_plane = csp == X264_CSP_NV12 ? 2 : 3;
1060 1061
    int depth_factor = i_csp & X264_CSP_HIGH_DEPTH ? 2 : 1;
    pic->img.plane[0] = x264_malloc( 3 * i_width * i_height / 2 * depth_factor );
1062 1063
    if( !pic->img.plane[0] )
        return -1;
1064
    pic->img.plane[1] = pic->img.plane[0] + i_width * i_height * depth_factor;
1065
    if( csp != X264_CSP_NV12 )
1066 1067
        pic->img.plane[2] = pic->img.plane[1] + i_width * i_height / 4 * depth_factor;
    pic->img.i_stride[0] = i_width * depth_factor;
1068
    if( csp == X264_CSP_NV12 )
1069
        pic->img.i_stride[1] = i_width * depth_factor;
1070 1071
    else
    {
1072 1073
        pic->img.i_stride[1] = i_width / 2 * depth_factor;
        pic->img.i_stride[2] = i_width / 2 * depth_factor;
1074
    }
1075
    return 0;
1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093
}

/****************************************************************************
 * 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_malloc:
 ****************************************************************************/
void *x264_malloc( int i_size )
{
1094
    uint8_t *align_buf = NULL;
Steven Walters's avatar
Steven Walters committed
1095
#if SYS_MACOSX || (SYS_WINDOWS && ARCH_X86_64)
1096
    /* Mac OS X and Win x64 always returns 16 byte aligned memory */
1097
    align_buf = malloc( i_size );
Steven Walters's avatar
Steven Walters committed
1098
#elif HAVE_MALLOC_H
1099
    align_buf = memalign( 16, i_size );
1100
#else
1101
    uint8_t *buf = malloc( i_size + 15 + sizeof(void **) );
1102 1103
    if( buf )
    {
1104
        align_buf = buf + 15 + sizeof(void **);
1105 1106 1107
        align_buf -= (intptr_t) align_buf & 15;
        *( (void **) ( align_buf - sizeof(void **) ) ) = buf;
    }
1108
#endif
1109 1110 1111
    if( !align_buf )
        x264_log( NULL, X264_LOG_ERROR, "malloc of size %d failed\n", i_size );
    return align_buf;
1112 1113 1114 1115 1116 1117 1118 1119 1120
}

/****************************************************************************
 * x264_free:
 ****************************************************************************/
void x264_free( void *p )
{
    if( p )
    {
Steven Walters's avatar
Steven Walters committed
1121
#if HAVE_MALLOC_H || SYS_MACOSX || (SYS_WINDOWS && ARCH_X86_64)
1122 1123 1124 1125 1126 1127 1128
        free( p );
#else
        free( *( ( ( void **) p ) - 1 ) );
#endif
    }
}

1129 1130 1131
/****************************************************************************
 * x264_reduce_fraction:
 ****************************************************************************/
Fiona Glaser's avatar
Fiona Glaser committed
1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148
#define REDUCE_FRACTION( name, type )\
void name( type *n, type *d )\
{                   \
    type a = *n;    \
    type b = *d;    \
    type c;         \
    if( !a || !b )  \
        return;     \
    c = a % b;      \
    while( c )      \
    {               \
        a = b;      \
        b = c;      \
        c = a % b;  \
    }               \
    *n /= b;        \
    *d /= b;        \
1149 1150
}

Fiona Glaser's avatar
Fiona Glaser committed
1151 1152 1153
REDUCE_FRACTION( x264_reduce_fraction  , uint32_t )
REDUCE_FRACTION( x264_reduce_fraction64, uint64_t )

1154 1155 1156 1157 1158 1159
/****************************************************************************
 * x264_slurp_file:
 ****************************************************************************/
char *x264_slurp_file( const char *filename )
{
    int b_error = 0;
1160
    size_t i_size;
1161 1162 1163 1164 1165 1166 1167 1168
    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 )
1169
        goto error;
1170
    buf = x264_malloc( i_size+2 );
1171 1172
    if( !buf )
        goto error;
1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183
    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;
1184 1185 1186
error:
    fclose( fh );
    return NULL;
1187
}
1188 1189 1190 1191 1192 1193

/****************************************************************************
 * x264_param2string:
 ****************************************************************************/
char *x264_param2string( x264_param_t *p, int b_res )
{
1194 1195 1196 1197 1198
    int len = 1000;
    char *buf, *s;
    if( p->rc.psz_zones )
        len += strlen(p->rc.psz_zones);
    buf = s = x264_malloc( len );
1199 1200
    if( !buf )
        return NULL;
1201 1202 1203 1204

    if( b_res )
    {
        s += sprintf( s, "%dx%d ", p->i_width, p->i_height );
1205 1206
        s += sprintf( s, "fps=%u/%u ", p->i_fps_num, p->i_fps_den );
        s += sprintf( s, "timebase=%u/%u ", p->i_timebase_num, p->i_timebase_den );
1207
        s += sprintf( s, "bitdepth=%d ", BIT_DEPTH );
1208 1209 1210 1211 1212 1213 1214 1215 1216
    }

    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 );
1217 1218
    s += sprintf( s, " psy=%d", p->analyse.b_psy );
    if( p->analyse.b_psy )
1219
        s += sprintf( s, " psy_rd=%.2f:%.2f", p->analyse.f_psy_rd, p->analyse.f_psy_trellis );
1220 1221 1222 1223 1224 1225
    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 );
1226
    s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
1227
    s += sprintf( s, " fast_pskip=%d", p->analyse.b_fast_pskip );
1228
    s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
Loren Merritt's avatar
Loren Merritt committed
1229
    s += sprintf( s, " threads=%d", p->i_threads );
1230
    s += sprintf( s, " sliced_threads=%d", p->b_sliced_threads );
1231 1232 1233 1234 1235 1236
    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 );
1237
    s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
1238
    s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
1239
    s += sprintf( s, " interlaced=%s", p->b_interlaced ? p->b_tff ? "tff" : "bff" : p->b_fake_interlaced ? "fake" : "0" );
1240
    s += sprintf( s, " bluray_compat=%d", p->b_bluray_compat );
1241

1242
    s += sprintf( s, " constrained_intra=%d", p->b_constrained_intra );
1243 1244 1245 1246

    s += sprintf( s, " bframes=%d", p->i_bframe );
    if( p->i_bframe )
    {
Lamont Alston's avatar
Lamont Alston committed
1247
        s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d weightb=%d open_gop=%d",
1248
                      p->i_bframe_pyramid, p->i_bframe_adaptive, p->i_bframe_bias,
1249
                      p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred, p->b_open_gop );
1250
    }
1251
    s += sprintf( s, " weightp=%d", p->analyse.i_weighted_pred > 0 ? p->analyse.i_weighted_pred : 0 );
1252

1253 1254 1255 1256 1257 1258
    if( p->i_keyint_max == X264_KEYINT_MAX_INFINITE )
        s += sprintf( s, " keyint=infinite" );
    else
        s += sprintf( s, " keyint=%d", p->i_keyint_max );
    s += sprintf( s, " keyint_min=%d scenecut=%d intra_refresh=%d",
                  p->i_keyint_min, p->i_scenecut_threshold, p->b_intra_refresh );
1259

Fiona Glaser's avatar
Fiona Glaser committed
1260
    if( p->rc.b_mb_tree || p->rc.i_vbv_buffer_size )
1261 1262 1263
        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 ?
1264
                               ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_max_bitrate == p->rc.i_bitrate ? "cbr" : "abr" )
1265
                               : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp", p->rc.b_mb_tree );
1266
    if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
1267
    {
1268
        if( p->rc.i_rc_method == X264_RC_CRF )
1269
            s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
1270 1271 1272
        else
            s += sprintf( s, " bitrate=%d ratetol=%.1f",
                          p->rc.i_bitrate, p->rc.f_rate_tolerance );
1273 1274
        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 );
1275 1276 1277
        if( p->rc.b_stat_read )
            s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
                          p->rc.f_complexity_blur, p->rc.f_qblur );
1278
        if( p->rc.i_vbv_buffer_size )
1279
        {
1280 1281
            s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
                          p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
1282
            if( p->rc.i_rc_method == X264_RC_CRF )
1283
                s += sprintf( s, " crf_max=%.1f", p->rc.f_rf_constant_max );
1284
        }
1285
    }
1286
    else if( p->rc.i_rc_method == X264_RC_CQP )
1287
        s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
1288 1289 1290 1291 1292 1293 1294 1295 1296

    if( p->rc.i_vbv_buffer_size )
        s += sprintf( s, " nal_hrd=%s", x264_nal_hrd_names[p->i_nal_hrd] );
    if( p->crop_rect.i_left | p->crop_rect.i_top | p->crop_rect.i_right | p->crop_rect.i_bottom )
        s += sprintf( s, " crop_rect=%u,%u,%u,%u", p->crop_rect.i_left, p->crop_rect.i_top,
                                                   p->crop_rect.i_right, p->crop_rect.i_bottom );
    if( p->i_frame_packing >= 0 )
        s += sprintf( s, " frame-packing=%d", p->i_frame_packing );

1297
    if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
1298 1299
    {
        s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
1300
        if( p->i_bframe && !p->rc.b_mb_tree )
1301
            s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
1302 1303 1304
        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 );
1305 1306 1307
        if( p->rc.psz_zones )
            s += sprintf( s, " zones=%s", p->rc.psz_zones );
        else if( p->rc.i_zones )
1308 1309 1310 1311 1312 1313
            s += sprintf( s, " zones" );
    }

    return buf;
}