common.c 28.6 KB
Newer Older
Laurent Aimar's avatar
Laurent Aimar committed
1 2 3
/*****************************************************************************
 * common.c: h264 library
 *****************************************************************************
4
 * Copyright (C) 2003-2008 x264 project
Laurent Aimar's avatar
Laurent Aimar committed
5
 *
6 7
 * Authors: Loren Merritt <lorenm@u.washington.edu>
 *          Laurent Aimar <fenrir@via.ecp.fr>
Laurent Aimar's avatar
Laurent Aimar committed
8 9 10 11 12 13 14 15 16 17 18 19 20
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
21
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
Laurent Aimar's avatar
Laurent Aimar committed
22 23
 *****************************************************************************/

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

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

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

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

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

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

    /* 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;
55 56 57 58 59 60 61
    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 */
62 63
    param->i_fps_num       = 25;
    param->i_fps_den       = 1;
64
    param->i_level_idc     = -1;
Laurent Aimar's avatar
Laurent Aimar committed
65 66 67

    /* Encoder parameters */
    param->i_frame_reference = 1;
68
    param->i_keyint_max = 250;
69
    param->i_keyint_min = 25;
Laurent Aimar's avatar
Laurent Aimar committed
70
    param->i_bframe = 0;
71
    param->i_scenecut_threshold = 40;
72 73
    param->b_bframe_adaptive = 1;
    param->i_bframe_bias = 0;
74
    param->b_bframe_pyramid = 0;
Laurent Aimar's avatar
Laurent Aimar committed
75 76 77 78 79

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

80
    param->b_cabac = 1;
81
    param->i_cabac_init_idc = 0;
Laurent Aimar's avatar
Laurent Aimar committed
82

83
    param->rc.i_rc_method = X264_RC_NONE;
84
    param->rc.i_bitrate = 0;
Loren Merritt's avatar
Loren Merritt committed
85 86 87 88
    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;
89
    param->rc.i_qp_constant = 26;
90
    param->rc.f_rf_constant = 0;
Loren Merritt's avatar
Loren Merritt committed
91
    param->rc.i_qp_min = 10;
92 93
    param->rc.i_qp_max = 51;
    param->rc.i_qp_step = 4;
Loren Merritt's avatar
Loren Merritt committed
94
    param->rc.f_ip_factor = 1.4;
95
    param->rc.f_pb_factor = 1.3;
96 97
    param->rc.i_aq_mode = X264_AQ_GLOBAL;
    param->rc.f_aq_strength = 1.0;
98 99 100 101 102

    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";
103
    param->rc.psz_rc_eq = "blurCplx^(1-qComp)";
104 105
    param->rc.f_qcompress = 0.6;
    param->rc.f_qblur = 0.5;
Loren Merritt's avatar
Loren Merritt committed
106
    param->rc.f_complexity_blur = 20;
Loren Merritt's avatar
Loren Merritt committed
107
    param->rc.i_zones = 0;
Laurent Aimar's avatar
Laurent Aimar committed
108

109 110 111
    /* Log */
    param->pf_log = x264_log_default;
    param->p_log_private = NULL;
112
    param->i_log_level = X264_LOG_INFO;
113 114

    /* */
115
    param->analyse.intra = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8;
116 117
    param->analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_I8x8
                         | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_BSUB16x16;
118
    param->analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
119 120
    param->analyse.i_me_method = X264_ME_HEX;
    param->analyse.i_me_range = 16;
121
    param->analyse.i_subpel_refine = 5;
Loren Merritt's avatar
Loren Merritt committed
122
    param->analyse.b_chroma_me = 1;
Loren Merritt's avatar
Loren Merritt committed
123
    param->analyse.i_mv_range_thread = -1;
124
    param->analyse.i_mv_range = -1; // set from level_idc
125
    param->analyse.i_direct_8x8_inference = 1;
126
    param->analyse.i_chroma_qp_offset = 0;
Loren Merritt's avatar
Loren Merritt committed
127
    param->analyse.b_fast_pskip = 1;
128
    param->analyse.b_dct_decimate = 1;
129 130
    param->analyse.i_luma_deadzone[0] = 21;
    param->analyse.i_luma_deadzone[1] = 11;
131
    param->analyse.b_psnr = 1;
132
    param->analyse.b_ssim = 1;
133

Loren Merritt's avatar
Loren Merritt committed
134 135 136 137 138 139 140 141
    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 );

142
    param->b_repeat_headers = 1;
143
    param->b_aud = 0;
Laurent Aimar's avatar
Laurent Aimar committed
144 145
}

146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169
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;
}

170
static int x264_atobool( const char *str, int *b_error )
171
{
Loren Merritt's avatar
Loren Merritt committed
172 173
    if( !strcmp(str, "1") ||
        !strcmp(str, "true") ||
174 175
        !strcmp(str, "yes") )
        return 1;
Loren Merritt's avatar
Loren Merritt committed
176 177
    if( !strcmp(str, "0") ||
        !strcmp(str, "false") ||
178 179
        !strcmp(str, "no") )
        return 0;
180 181 182 183 184 185 186 187 188 189 190
    *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;
191 192
}

193 194 195 196 197 198 199 200 201 202 203 204
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 )
205 206 207

int x264_param_parse( x264_param_t *p, const char *name, const char *value )
{
208
    char *name_buf = NULL;
209
    int b_error = 0;
210 211
    int name_was_bool;
    int value_was_null = !value;
212 213 214 215 216
    int i;

    if( !name )
        return X264_PARAM_BAD_NAME;
    if( !value )
217
        value = "true";
218 219 220 221

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

222 223 224 225 226 227 228 229 230
    if( strchr( name, '_' ) ) // s/_/-/g
    {
        char *p;
        name_buf = strdup(name);
        while( (p = strchr( name_buf, '_' )) )
            *p = '-';
        name = name_buf;
    }

231 232 233 234 235 236
    if( (!strncmp( name, "no-", 3 ) && (i = 3)) ||
        (!strncmp( name, "no", 2 ) && (i = 2)) )
    {
        name += i;
        value = atobool(value) ? "false" : "true";
    }
237
    name_was_bool = 0;
238 239

#define OPT(STR) else if( !strcmp( name, STR ) )
240
#define OPT2(STR0, STR1) else if( !strcmp( name, STR0 ) || !strcmp( name, STR1 ) )
241 242
    if(0);
    OPT("asm")
243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261
    {
        p->cpu = isdigit(value[0]) ? atoi(value) :
                 !strcmp(value, "auto") || atobool(value) ? x264_cpu_detect() : 0;
        if( b_error )
        {
            char *buf = strdup(value);
            char *tok, *saveptr, *init;
            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 );
        }
    }
262
    OPT("threads")
263 264 265 266 267 268
    {
        if( !strcmp(value, "auto") )
            p->i_threads = 0;
        else
            p->i_threads = atoi(value);
    }
Loren Merritt's avatar
Loren Merritt committed
269 270
    OPT2("deterministic", "n-deterministic")
        p->b_deterministic = atobool(value);
271
    OPT2("level", "level-idc")
272 273 274 275 276 277 278 279 280 281 282 283 284
    {
        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 );
285
    OPT("videoformat")
286 287 288
        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 );
289
    OPT("colorprim")
290 291 292
        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 );
293
    OPT("colormatrix")
294 295 296 297 298 299 300 301 302 303
        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 )
            ;
304
        else
305
        {
306
            float fps = atof(value);
307 308 309 310
            p->i_fps_num = (int)(fps * 1000 + .5);
            p->i_fps_den = 1000;
        }
    }
311
    OPT2("ref", "frameref")
312 313 314 315 316 317 318
        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;
    }
319
    OPT2("min-keyint", "keyint-min")
320 321 322 323 324 325 326
    {
        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")
        p->i_scenecut_threshold = atoi(value);
Loren Merritt's avatar
Loren Merritt committed
327 328
    OPT("pre-scenecut")
        p->b_pre_scenecut = atobool(value);
329 330 331 332 333 334 335 336 337
    OPT("bframes")
        p->i_bframe = atoi(value);
    OPT("b-adapt")
        p->b_bframe_adaptive = atobool(value);
    OPT("b-bias")
        p->i_bframe_bias = atoi(value);
    OPT("b-pyramid")
        p->b_bframe_pyramid = atobool(value);
    OPT("nf")
338
        p->b_deblocking_filter = !atobool(value);
339
    OPT2("filter", "deblock")
340
    {
341 342
        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 ) )
343 344
        {
            p->b_deblocking_filter = 1;
345 346 347 348 349
        }
        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;
350 351 352 353 354 355 356 357
        }
        else
            p->b_deblocking_filter = atobool(value);
    }
    OPT("cabac")
        p->b_cabac = atobool(value);
    OPT("cabac-idc")
        p->i_cabac_init_idc = atoi(value);
358 359
    OPT("interlaced")
        p->b_interlaced = atobool(value);
360 361 362 363 364 365 366
    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
367
            p->psz_cqm_file = strdup(value);
368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428
    }
    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);
429 430 431 432
#ifdef VISUALIZE
    OPT("visualize")
        p->b_visualize = atobool(value);
#endif
433 434
    OPT("dump-yuv")
        p->psz_dump_yuv = strdup(value);
435
    OPT2("analyse", "partitions")
436 437 438 439 440 441 442 443 444 445 446 447 448
    {
        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);
449
    OPT2("weightb", "weight-b")
450
        p->analyse.b_weighted_bipred = atobool(value);
451
    OPT2("direct", "direct-pred")
452
        b_error |= parse_enum( value, x264_direct_pred_names, &p->analyse.i_direct_mv_pred );
453 454
    OPT("direct-8x8")
        p->analyse.i_direct_8x8_inference = atoi(value);
455 456 457 458
    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 );
459
    OPT2("merange", "me-range")
460
        p->analyse.i_me_range = atoi(value);
Loren Merritt's avatar
Loren Merritt committed
461
    OPT2("mvrange", "mv-range")
462
        p->analyse.i_mv_range = atoi(value);
Loren Merritt's avatar
Loren Merritt committed
463 464
    OPT2("mvrange-thread", "mv-range-thread")
        p->analyse.i_mv_range_thread = atoi(value);
465
    OPT2("subme", "subq")
466 467 468 469 470
        p->analyse.i_subpel_refine = atoi(value);
    OPT("bime")
        p->analyse.b_bidir_me = atobool(value);
    OPT("chroma-me")
        p->analyse.b_chroma_me = atobool(value);
471
    OPT2("b-rdo", "brdo")
472 473 474 475 476 477 478 479 480
        p->analyse.b_bframe_rdo = 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);
481 482 483 484
    OPT("deadzone-inter")
        p->analyse.i_luma_deadzone[0] = atoi(value);
    OPT("deadzone-intra")
        p->analyse.i_luma_deadzone[1] = atoi(value);
485 486 487 488 489 490 491
    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;
    }
492
    OPT2("qp", "qp_constant")
493 494 495 496 497 498
    {
        p->rc.i_qp_constant = atoi(value);
        p->rc.i_rc_method = X264_RC_CQP;
    }
    OPT("crf")
    {
499
        p->rc.f_rf_constant = atof(value);
500 501
        p->rc.i_rc_method = X264_RC_CRF;
    }
502
    OPT2("qpmin", "qp-min")
503
        p->rc.i_qp_min = atoi(value);
504
    OPT2("qpmax", "qp-max")
505
        p->rc.i_qp_max = atoi(value);
506
    OPT2("qpstep", "qp-step")
507 508 509 510 511 512 513 514 515
        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);
516
    OPT2("ipratio", "ip-factor")
517
        p->rc.f_ip_factor = atof(value);
518
    OPT2("pbratio", "pb-factor")
519
        p->rc.f_pb_factor = atof(value);
520 521 522 523
    OPT("aq-mode")
        p->rc.i_aq_mode = atoi(value);
    OPT("aq-strength")
        p->rc.f_aq_strength = atof(value);
524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540
    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("rceq")
        p->rc.psz_rc_eq = strdup(value);
    OPT("qcomp")
        p->rc.f_qcompress = atof(value);
    OPT("qblur")
        p->rc.f_qblur = atof(value);
541
    OPT2("cplxblur", "cplx-blur")
542 543 544 545 546
        p->rc.f_complexity_blur = atof(value);
    OPT("zones")
        p->rc.psz_zones = strdup(value);
    OPT("psnr")
        p->analyse.b_psnr = atobool(value);
547 548
    OPT("ssim")
        p->analyse.b_ssim = atobool(value);
549 550 551 552
    OPT("aud")
        p->b_aud = atobool(value);
    OPT("sps-id")
        p->i_sps_id = atoi(value);
553 554
    OPT("global-header")
        p->b_repeat_headers = !atobool(value);
555 556 557 558 559
    OPT("repeat-headers")
        p->b_repeat_headers = atobool(value);
    else
        return X264_PARAM_BAD_NAME;
#undef OPT
560
#undef OPT2
561
#undef atobool
562 563 564 565 566
#undef atoi
#undef atof

    if( name_buf )
        free( name_buf );
567

568
    b_error |= value_was_null && !name_was_bool;
569 570 571
    return b_error ? X264_PARAM_BAD_VALUE : 0;
}

572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610
/****************************************************************************
 * x264_log:
 ****************************************************************************/
void x264_log( x264_t *h, int i_level, const char *psz_fmt, ... )
{
    if( i_level <= h->param.i_log_level )
    {
        va_list arg;
        va_start( arg, psz_fmt );
        h->param.pf_log( h->param.p_log_private, i_level, psz_fmt, arg );
        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
611 612 613 614 615 616 617 618
/****************************************************************************
 * x264_picture_alloc:
 ****************************************************************************/
void x264_picture_alloc( x264_picture_t *pic, int i_csp, int i_width, int i_height )
{
    pic->i_type = X264_TYPE_AUTO;
    pic->i_qpplus1 = 0;
    pic->img.i_csp = i_csp;
619 620 621 622 623 624 625
    pic->img.i_plane = 3;
    pic->img.plane[0] = x264_malloc( 3 * i_width * i_height / 2 );
    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;
Laurent Aimar's avatar
Laurent Aimar committed
626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723
}

/****************************************************************************
 * 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:
 ****************************************************************************/
int x264_nal_encode( void *p_data, int *pi_data, int b_annexeb, x264_nal_t *nal )
{
    uint8_t *dst = p_data;
    uint8_t *src = nal->p_payload;
    uint8_t *end = &nal->p_payload[nal->i_payload];

    int i_count = 0;

    /* FIXME this code doesn't check overflow */

    if( b_annexeb )
    {
        /* long nal start code (we always use long ones)*/
        *dst++ = 0x00;
        *dst++ = 0x00;
        *dst++ = 0x00;
        *dst++ = 0x01;
    }

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

    while( src < end )
    {
        if( i_count == 2 && *src <= 0x03 )
        {
            *dst++ = 0x03;
            i_count = 0;
        }
        if( *src == 0 )
        {
            i_count++;
        }
        else
        {
            i_count = 0;
        }
        *dst++ = *src++;
    }
    *pi_data = dst - (uint8_t*)p_data;

    return *pi_data;
}

/****************************************************************************
 * x264_nal_decode:
 ****************************************************************************/
int x264_nal_decode( x264_nal_t *nal, void *p_data, int i_data )
{
    uint8_t *src = p_data;
    uint8_t *end = &src[i_data];
    uint8_t *dst = nal->p_payload;

    nal->i_type    = src[0]&0x1f;
    nal->i_ref_idc = (src[0] >> 5)&0x03;

    src++;

    while( src < end )
    {
        if( src < end - 3 && src[0] == 0x00 && src[1] == 0x00  && src[2] == 0x03 )
        {
            *dst++ = 0x00;
            *dst++ = 0x00;

            src += 3;
            continue;
        }
        *dst++ = *src++;
    }

    nal->i_payload = dst - (uint8_t*)p_data;
    return 0;
}



/****************************************************************************
 * x264_malloc:
 ****************************************************************************/
void *x264_malloc( int i_size )
{
724 725 726 727
#ifdef SYS_MACOSX
    /* Mac OS X always returns 16 bytes aligned memory */
    return malloc( i_size );
#elif defined( HAVE_MALLOC_H )
Laurent Aimar's avatar
Laurent Aimar committed
728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748
    return memalign( 16, i_size );
#else
    uint8_t * buf;
    uint8_t * align_buf;
    buf = (uint8_t *) malloc( i_size + 15 + sizeof( void ** ) +
              sizeof( int ) );
    align_buf = buf + 15 + sizeof( void ** ) + sizeof( int );
    align_buf -= (long) align_buf & 15;
    *( (void **) ( align_buf - sizeof( void ** ) ) ) = buf;
    *( (int *) ( align_buf - sizeof( void ** ) - sizeof( int ) ) ) = i_size;
    return align_buf;
#endif
}

/****************************************************************************
 * x264_free:
 ****************************************************************************/
void x264_free( void *p )
{
    if( p )
    {
749
#if defined( HAVE_MALLOC_H ) || defined( SYS_MACOSX )
Laurent Aimar's avatar
Laurent Aimar committed
750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768
        free( p );
#else
        free( *( ( ( void **) p ) - 1 ) );
#endif
    }
}

/****************************************************************************
 * x264_realloc:
 ****************************************************************************/
void *x264_realloc( void *p, int i_size )
{
#ifdef HAVE_MALLOC_H
    return realloc( p, i_size );
#else
    int       i_old_size = 0;
    uint8_t * p_new;
    if( p )
    {
769 770
        i_old_size = *( (int*) ( (uint8_t*) p - sizeof( void ** ) -
                         sizeof( int ) ) );
Laurent Aimar's avatar
Laurent Aimar committed
771 772 773 774 775 776 777 778 779 780 781
    }
    p_new = x264_malloc( i_size );
    if( i_old_size > 0 && i_size > 0 )
    {
        memcpy( p_new, p, ( i_old_size < i_size ) ? i_old_size : i_size );
    }
    x264_free( p );
    return p_new;
#endif
}

Loren Merritt's avatar
Loren Merritt committed
782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802
/****************************************************************************
 * 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)
    {
	a = b;
	b = c;
	c = a % b;
    }
    *n /= b;
    *d /= b;
}

803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833
/****************************************************************************
 * 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;
}
834 835 836 837 838 839

/****************************************************************************
 * x264_param2string:
 ****************************************************************************/
char *x264_param2string( x264_param_t *p, int b_res )
{
840 841 842 843 844
    int len = 1000;
    char *buf, *s;
    if( p->rc.psz_zones )
        len += strlen(p->rc.psz_zones);
    buf = s = x264_malloc( len );
845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865

    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 );
    s += sprintf( s, " brdo=%d", p->analyse.b_bframe_rdo );
    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 );
866
    s += sprintf( s, " deadzone=%d,%d", p->analyse.i_luma_deadzone[0], p->analyse.i_luma_deadzone[1] );
867
    s += sprintf( s, " chroma_qp_offset=%d", p->analyse.i_chroma_qp_offset );
Loren Merritt's avatar
Loren Merritt committed
868
    s += sprintf( s, " threads=%d", p->i_threads );
869
    s += sprintf( s, " nr=%d", p->analyse.i_noise_reduction );
870
    s += sprintf( s, " decimate=%d", p->analyse.b_dct_decimate );
871
    s += sprintf( s, " mbaff=%d", p->b_interlaced );
872 873 874 875

    s += sprintf( s, " bframes=%d", p->i_bframe );
    if( p->i_bframe )
    {
876
        s += sprintf( s, " b_pyramid=%d b_adapt=%d b_bias=%d direct=%d wpredb=%d bime=%d",
877
                      p->b_bframe_pyramid, p->b_bframe_adaptive, p->i_bframe_bias,
878 879
                      p->analyse.i_direct_mv_pred, p->analyse.b_weighted_bipred,
                      p->analyse.b_bidir_me );
880 881
    }

Loren Merritt's avatar
Loren Merritt committed
882 883 884
    s += sprintf( s, " keyint=%d keyint_min=%d scenecut=%d%s",
                  p->i_keyint_max, p->i_keyint_min, p->i_scenecut_threshold,
                  p->b_pre_scenecut ? "(pre)" : "" );
885

886 887 888 889
    s += sprintf( s, " rc=%s", p->rc.i_rc_method == X264_RC_ABR ?
                               ( p->rc.b_stat_read ? "2pass" : p->rc.i_vbv_buffer_size ? "cbr" : "abr" )
                               : p->rc.i_rc_method == X264_RC_CRF ? "crf" : "cqp" );
    if( p->rc.i_rc_method == X264_RC_ABR || p->rc.i_rc_method == X264_RC_CRF )
890
    {
891
        if( p->rc.i_rc_method == X264_RC_CRF )
892
            s += sprintf( s, " crf=%.1f", p->rc.f_rf_constant );
893 894 895 896 897 898 899 900 901
        else
            s += sprintf( s, " bitrate=%d ratetol=%.1f",
                          p->rc.i_bitrate, p->rc.f_rate_tolerance );
        s += sprintf( s, " rceq='%s' qcomp=%.2f qpmin=%d qpmax=%d qpstep=%d",
                      p->rc.psz_rc_eq, p->rc.f_qcompress,
                      p->rc.i_qp_min, p->rc.i_qp_max, p->rc.i_qp_step );
        if( p->rc.b_stat_read )
            s += sprintf( s, " cplxblur=%.1f qblur=%.1f",
                          p->rc.f_complexity_blur, p->rc.f_qblur );
902
        if( p->rc.i_vbv_buffer_size )
903 904 905
            s += sprintf( s, " vbv_maxrate=%d vbv_bufsize=%d",
                          p->rc.i_vbv_max_bitrate, p->rc.i_vbv_buffer_size );
    }
906
    else if( p->rc.i_rc_method == X264_RC_CQP )
907
        s += sprintf( s, " qp=%d", p->rc.i_qp_constant );
908
    if( !(p->rc.i_rc_method == X264_RC_CQP && p->rc.i_qp_constant == 0) )
909 910 911 912
    {
        s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor );
        if( p->i_bframe )
            s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor );
913 914 915
        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 );
916 917 918
        if( p->rc.psz_zones )
            s += sprintf( s, " zones=%s", p->rc.psz_zones );
        else if( p->rc.i_zones )
919 920 921 922 923 924
            s += sprintf( s, " zones" );
    }

    return buf;
}