opt.c 72.4 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
/*
 * AVOptions
 * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/**
 * @file
 * AVOptions
 * @author Michael Niedermayer <michaelni@gmx.at>
 */

#include "avutil.h"
29
#include "avassert.h"
30
#include "avstring.h"
31
#include "channel_layout.h"
32
#include "common.h"
33
#include "opt.h"
34
#include "eval.h"
35
#include "dict.h"
36
#include "log.h"
37
#include "parseutils.h"
38
#include "pixdesc.h"
39
#include "mathematics.h"
40
#include "samplefmt.h"
41
#include "bprint.h"
42

43 44
#include <float.h>

45
const AVOption *av_opt_next(const void *obj, const AVOption *last)
46
{
47 48 49 50
    const AVClass *class;
    if (!obj)
        return NULL;
    class = *(const AVClass**)obj;
51
    if (!last && class && class->option && class->option[0].name)
52
        return class->option;
53 54
    if (last && last[1].name)
        return ++last;
55
    return NULL;
56 57
}

58
static int read_number(const AVOption *o, const void *dst, double *num, int *den, int64_t *intnum)
59 60
{
    switch (o->type) {
61
    case AV_OPT_TYPE_FLAGS:     *intnum = *(unsigned int*)dst;return 0;
62
    case AV_OPT_TYPE_PIXEL_FMT: *intnum = *(enum AVPixelFormat *)dst;return 0;
63
    case AV_OPT_TYPE_SAMPLE_FMT:*intnum = *(enum AVSampleFormat*)dst;return 0;
64
    case AV_OPT_TYPE_BOOL:
65
    case AV_OPT_TYPE_INT:       *intnum = *(int         *)dst;return 0;
66
    case AV_OPT_TYPE_CHANNEL_LAYOUT:
67
    case AV_OPT_TYPE_DURATION:
68 69 70 71
    case AV_OPT_TYPE_INT64:     *intnum = *(int64_t     *)dst;return 0;
    case AV_OPT_TYPE_FLOAT:     *num    = *(float       *)dst;return 0;
    case AV_OPT_TYPE_DOUBLE:    *num    = *(double      *)dst;return 0;
    case AV_OPT_TYPE_RATIONAL:  *intnum = ((AVRational*)dst)->num;
72 73
                                *den    = ((AVRational*)dst)->den;
                                                        return 0;
74
    case AV_OPT_TYPE_CONST:     *num    = o->default_val.dbl; return 0;
75 76 77 78
    }
    return AVERROR(EINVAL);
}

79
static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
80
{
81 82
    if (o->type != AV_OPT_TYPE_FLAGS &&
        (o->max * den < num * intnum || o->min * den > num * intnum)) {
83
        num = den ? num*intnum/den : (num*intnum ? INFINITY : NAN);
84
        av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
85
               num, o->name, o->min, o->max);
86 87
        return AVERROR(ERANGE);
    }
88 89
    if (o->type == AV_OPT_TYPE_FLAGS) {
        double d = num*intnum/den;
90
        if (d < -1.5 || d > 0xFFFFFFFF+0.5 || (llrint(d*256) & 255)) {
91 92 93 94 95 96
            av_log(obj, AV_LOG_ERROR,
                   "Value %f for parameter '%s' is not a valid set of 32bit integer flags\n",
                   num*intnum/den, o->name);
            return AVERROR(ERANGE);
        }
    }
97

98
    switch (o->type) {
99
    case AV_OPT_TYPE_PIXEL_FMT: *(enum AVPixelFormat *)dst = llrint(num/den) * intnum; break;
100
    case AV_OPT_TYPE_SAMPLE_FMT:*(enum AVSampleFormat*)dst = llrint(num/den) * intnum; break;
101
    case AV_OPT_TYPE_BOOL:
102 103
    case AV_OPT_TYPE_FLAGS:
    case AV_OPT_TYPE_INT:   *(int       *)dst= llrint(num/den)*intnum; break;
104
    case AV_OPT_TYPE_DURATION:
105
    case AV_OPT_TYPE_CHANNEL_LAYOUT:
106 107 108 109
    case AV_OPT_TYPE_INT64: *(int64_t   *)dst= llrint(num/den)*intnum; break;
    case AV_OPT_TYPE_FLOAT: *(float     *)dst= num*intnum/den;         break;
    case AV_OPT_TYPE_DOUBLE:*(double    *)dst= num*intnum/den;         break;
    case AV_OPT_TYPE_RATIONAL:
110 111
        if ((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den};
        else                 *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
112 113 114 115 116 117 118 119 120 121 122 123 124 125
        break;
    default:
        return AVERROR(EINVAL);
    }
    return 0;
}

static int hexchar2int(char c) {
    if (c >= '0' && c <= '9') return c - '0';
    if (c >= 'a' && c <= 'f') return c - 'a' + 10;
    if (c >= 'A' && c <= 'F') return c - 'A' + 10;
    return -1;
}

126
static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
127
{
128 129
    int *lendst = (int *)(dst + 1);
    uint8_t *bin, *ptr;
130
    int len;
131 132 133 134

    av_freep(dst);
    *lendst = 0;

135 136 137
    if (!val || !(len = strlen(val)))
        return 0;

138
    if (len & 1)
139
        return AVERROR(EINVAL);
140
    len /= 2;
141

142
    ptr = bin = av_malloc(len);
143 144
    if (!ptr)
        return AVERROR(ENOMEM);
145 146 147 148 149 150
    while (*val) {
        int a = hexchar2int(*val++);
        int b = hexchar2int(*val++);
        if (a < 0 || b < 0) {
            av_free(bin);
            return AVERROR(EINVAL);
151
        }
152
        *ptr++ = (a << 4) | b;
153
    }
154 155 156 157 158 159 160 161 162 163
    *dst = bin;
    *lendst = len;

    return 0;
}

static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
{
    av_freep(dst);
    *dst = av_strdup(val);
164
    return *dst ? 0 : AVERROR(ENOMEM);
165 166
}

167
#define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
168
                              opt->type == AV_OPT_TYPE_CONST || \
169 170
                              opt->type == AV_OPT_TYPE_FLAGS || \
                              opt->type == AV_OPT_TYPE_INT) ? \
171 172
                             opt->default_val.i64 : opt->default_val.dbl)

173
static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
174
{
175
    int ret = 0;
176 177 178 179 180 181 182 183 184
    int num, den;
    char c;

    if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) {
        if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0)
            return ret;
        ret = 0;
    }

185
    for (;;) {
186
        int i = 0;
187 188
        char buf[256];
        int cmd = 0;
189
        double d;
190
        int64_t intnum = 1;
191

192 193
        if (o->type == AV_OPT_TYPE_FLAGS) {
            if (*val == '+' || *val == '-')
194
                cmd = *(val++);
195 196 197
            for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
                buf[i] = val[i];
            buf[i] = 0;
198
        }
199 200

        {
201
            const AVOption *o_named = av_opt_find(target_obj, i ? buf : val, o->unit, 0, 0);
202 203 204 205
            int res;
            int ci = 0;
            double const_values[64];
            const char * const_names[64];
206 207 208 209 210 211 212 213 214 215 216 217 218 219
            if (o_named && o_named->type == AV_OPT_TYPE_CONST)
                d = DEFAULT_NUMVAL(o_named);
            else {
                if (o->unit) {
                    for (o_named = NULL; o_named = av_opt_next(target_obj, o_named); ) {
                        if (o_named->type == AV_OPT_TYPE_CONST &&
                            o_named->unit &&
                            !strcmp(o_named->unit, o->unit)) {
                            if (ci + 6 >= FF_ARRAY_ELEMS(const_values)) {
                                av_log(obj, AV_LOG_ERROR, "const_values array too small for %s\n", o->unit);
                                return AVERROR_PATCHWELCOME;
                            }
                            const_names [ci  ] = o_named->name;
                            const_values[ci++] = DEFAULT_NUMVAL(o_named);
220 221
                        }
                    }
222
                }
223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241
                const_names [ci  ] = "default";
                const_values[ci++] = DEFAULT_NUMVAL(o);
                const_names [ci  ] = "max";
                const_values[ci++] = o->max;
                const_names [ci  ] = "min";
                const_values[ci++] = o->min;
                const_names [ci  ] = "none";
                const_values[ci++] = 0;
                const_names [ci  ] = "all";
                const_values[ci++] = ~0;
                const_names [ci] = NULL;
                const_values[ci] = 0;

                res = av_expr_parse_and_eval(&d, i ? buf : val, const_names,
                                            const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
                if (res < 0) {
                    av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
                    return res;
                }
242
            }
243
        }
244
        if (o->type == AV_OPT_TYPE_FLAGS) {
245 246 247
            read_number(o, dst, NULL, NULL, &intnum);
            if      (cmd == '+') d = intnum | (int64_t)d;
            else if (cmd == '-') d = intnum &~(int64_t)d;
248
        }
249

250
        if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
251 252
            return ret;
        val += i;
253
        if (!i || !*val)
254
            return 0;
255 256 257 258 259
    }

    return 0;
}

260 261 262 263 264 265 266 267 268 269 270 271 272 273 274
static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst)
{
    int ret;

    if (!val || !strcmp(val, "none")) {
        dst[0] =
        dst[1] = 0;
        return 0;
    }
    ret = av_parse_video_size(dst, dst + 1, val);
    if (ret < 0)
        av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
    return ret;
}

275 276 277 278 279 280 281 282 283 284 285 286 287
static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst)
{
    int ret;
    if (!val) {
        ret = AVERROR(EINVAL);
    } else {
        ret = av_parse_video_rate(dst, val);
    }
    if (ret < 0)
        av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
    return ret;
}

288 289 290 291 292 293 294 295 296 297 298 299 300 301 302
static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst)
{
    int ret;

    if (!val) {
        return 0;
    } else {
        ret = av_parse_color(dst, val, -1, obj);
        if (ret < 0)
            av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val);
        return ret;
    }
    return 0;
}

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
static const char *get_bool_name(int val)
{
    if (val < 0)
        return "auto";
    return val ? "true" : "false";
}

static int set_string_bool(void *obj, const AVOption *o, const char *val, int *dst)
{
    int n;

    if (!val)
        return 0;

    if (!strcmp(val, "auto")) {
        n = -1;
    } else if (av_match_name(val, "true,y,yes,enable,enabled,on")) {
        n = 1;
    } else if (av_match_name(val, "false,n,no,disable,disabled,off")) {
        n = 0;
    } else {
        char *end = NULL;
        n = strtol(val, &end, 10);
        if (val + strlen(val) != end)
            goto fail;
    }

    if (n < o->min || n > o->max)
        goto fail;

    *dst = n;
    return 0;

fail:
    av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as boolean\n", val);
    return AVERROR(EINVAL);
}

341 342 343
static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst,
                          int fmt_nb, int ((*get_fmt)(const char *)), const char *desc)
{
344
    int fmt, min, max;
345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360

    if (!val || !strcmp(val, "none")) {
        fmt = -1;
    } else {
        fmt = get_fmt(val);
        if (fmt == -1) {
            char *tail;
            fmt = strtol(val, &tail, 0);
            if (*tail || (unsigned)fmt >= fmt_nb) {
                av_log(obj, AV_LOG_ERROR,
                       "Unable to parse option value \"%s\" as %s\n", val, desc);
                return AVERROR(EINVAL);
            }
        }
    }

361 362 363
    min = FFMAX(o->min, -1);
    max = FFMIN(o->max, fmt_nb-1);

364 365 366 367 368 369
    // hack for compatibility with old ffmpeg
    if(min == 0 && max == 0) {
        min = -1;
        max = fmt_nb-1;
    }

370 371 372 373 374 375 376
    if (fmt < min || fmt > max) {
        av_log(obj, AV_LOG_ERROR,
               "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
               fmt, o->name, desc, min, max);
        return AVERROR(ERANGE);
    }

377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392
    *(int *)dst = fmt;
    return 0;
}

static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
{
    return set_string_fmt(obj, o, val, dst,
                          AV_PIX_FMT_NB, av_get_pix_fmt, "pixel format");
}

static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
{
    return set_string_fmt(obj, o, val, dst,
                          AV_SAMPLE_FMT_NB, av_get_sample_fmt, "sample format");
}

393 394
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
{
395
    int ret = 0;
396 397 398
    void *dst, *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
    if (!o || !target_obj)
399
        return AVERROR_OPTION_NOT_FOUND;
400 401
    if (!val && (o->type != AV_OPT_TYPE_STRING &&
                 o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
402
                 o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE &&
403
                 o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR &&
404
                 o->type != AV_OPT_TYPE_CHANNEL_LAYOUT && o->type != AV_OPT_TYPE_BOOL))
405 406
        return AVERROR(EINVAL);

407
    if (o->flags & AV_OPT_FLAG_READONLY)
408 409
        return AVERROR(EINVAL);

410
    dst = ((uint8_t*)target_obj) + o->offset;
411
    switch (o->type) {
412
    case AV_OPT_TYPE_BOOL:     return set_string_bool(obj, o, val, dst);
413 414 415 416 417 418 419
    case AV_OPT_TYPE_STRING:   return set_string(obj, o, val, dst);
    case AV_OPT_TYPE_BINARY:   return set_string_binary(obj, o, val, dst);
    case AV_OPT_TYPE_FLAGS:
    case AV_OPT_TYPE_INT:
    case AV_OPT_TYPE_INT64:
    case AV_OPT_TYPE_FLOAT:
    case AV_OPT_TYPE_DOUBLE:
420
    case AV_OPT_TYPE_RATIONAL: return set_string_number(obj, target_obj, o, val, dst);
421
    case AV_OPT_TYPE_IMAGE_SIZE: return set_string_image_size(obj, o, val, dst);
422
    case AV_OPT_TYPE_VIDEO_RATE: return set_string_video_rate(obj, o, val, dst);
423 424
    case AV_OPT_TYPE_PIXEL_FMT:  return set_string_pixel_fmt(obj, o, val, dst);
    case AV_OPT_TYPE_SAMPLE_FMT: return set_string_sample_fmt(obj, o, val, dst);
425 426 427 428 429 430 431 432 433
    case AV_OPT_TYPE_DURATION:
        if (!val) {
            *(int64_t *)dst = 0;
            return 0;
        } else {
            if ((ret = av_parse_time(dst, val, 1)) < 0)
                av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val);
            return ret;
        }
434
        break;
435
    case AV_OPT_TYPE_COLOR:      return set_string_color(obj, o, val, dst);
436 437 438 439 440 441 442 443 444 445 446 447 448
    case AV_OPT_TYPE_CHANNEL_LAYOUT:
        if (!val || !strcmp(val, "none")) {
            *(int64_t *)dst = 0;
        } else {
            int64_t cl = av_get_channel_layout(val);
            if (!cl) {
                av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val);
                ret = AVERROR(EINVAL);
            }
            *(int64_t *)dst = cl;
            return ret;
        }
        break;
449 450
    }

451 452 453
    av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
    return AVERROR(EINVAL);
}
454

455 456 457
#define OPT_EVAL_NUMBER(name, opttype, vartype)\
    int av_opt_eval_ ## name(void *obj, const AVOption *o, const char *val, vartype *name ## _out)\
    {\
458
        if (!o || o->type != opttype || o->flags & AV_OPT_FLAG_READONLY)\
459
            return AVERROR(EINVAL);\
460
        return set_string_number(obj, obj, o, val, name ## _out);\
461 462
    }

463 464 465 466 467 468
OPT_EVAL_NUMBER(flags,  AV_OPT_TYPE_FLAGS,    int)
OPT_EVAL_NUMBER(int,    AV_OPT_TYPE_INT,      int)
OPT_EVAL_NUMBER(int64,  AV_OPT_TYPE_INT64,    int64_t)
OPT_EVAL_NUMBER(float,  AV_OPT_TYPE_FLOAT,    float)
OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE,   double)
OPT_EVAL_NUMBER(q,      AV_OPT_TYPE_RATIONAL, AVRational)
469

470 471
static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
                                  int search_flags)
472
{
473 474
    void *dst, *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
475

476 477
    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
478

479 480 481
    if (o->flags & AV_OPT_FLAG_READONLY)
        return AVERROR(EINVAL);

482 483
    dst = ((uint8_t*)target_obj) + o->offset;
    return write_number(obj, o, dst, num, den, intnum);
484 485
}

486 487 488 489 490 491 492 493 494 495 496 497 498
int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
{
    return set_number(obj, name, 1, 1, val, search_flags);
}

int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
{
    return set_number(obj, name, val, 1, 1, search_flags);
}

int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
{
    return set_number(obj, name, val.num, val.den, 1, search_flags);
499 500
}

501 502 503 504 505 506 507 508 509 510 511
int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
{
    void *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
    uint8_t *ptr;
    uint8_t **dst;
    int *lendst;

    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;

512
    if (o->type != AV_OPT_TYPE_BINARY || o->flags & AV_OPT_FLAG_READONLY)
513 514
        return AVERROR(EINVAL);

515 516
    ptr = len ? av_malloc(len) : NULL;
    if (len && !ptr)
517 518 519 520 521 522 523 524
        return AVERROR(ENOMEM);

    dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
    lendst = (int *)(dst + 1);

    av_free(*dst);
    *dst = ptr;
    *lendst = len;
525 526
    if (len)
        memcpy(ptr, val, len);
527 528 529 530

    return 0;
}

531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552
int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
{
    void *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);

    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
    if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
        av_log(obj, AV_LOG_ERROR,
               "The value set by option '%s' is not an image size.\n", o->name);
        return AVERROR(EINVAL);
    }
    if (w<0 || h<0) {
        av_log(obj, AV_LOG_ERROR,
               "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
        return AVERROR(EINVAL);
    }
    *(int *)(((uint8_t *)target_obj)             + o->offset) = w;
    *(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h;
    return 0;
}

553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569
int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
{
    void *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);

    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
    if (o->type != AV_OPT_TYPE_VIDEO_RATE) {
        av_log(obj, AV_LOG_ERROR,
               "The value set by option '%s' is not a video rate.\n", o->name);
        return AVERROR(EINVAL);
    }
    if (val.num <= 0 || val.den <= 0)
        return AVERROR(EINVAL);
    return set_number(obj, name, val.num, val.den, 1, search_flags);
}

570
static int set_format(void *obj, const char *name, int fmt, int search_flags,
571
                      enum AVOptionType type, const char *desc, int nb_fmts)
572 573 574 575
{
    void *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0,
                                     search_flags, &target_obj);
576 577
    int min, max;

578 579 580 581 582 583 584 585
    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
    if (o->type != type) {
        av_log(obj, AV_LOG_ERROR,
               "The value set by option '%s' is not a %s format", name, desc);
        return AVERROR(EINVAL);
    }

586 587 588
    min = FFMAX(o->min, -1);
    max = FFMIN(o->max, nb_fmts-1);

589
    if (fmt < min || fmt > max) {
590
        av_log(obj, AV_LOG_ERROR,
591 592
               "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
               fmt, name, desc, min, max);
593 594 595 596 597 598 599 600
        return AVERROR(ERANGE);
    }
    *(int *)(((uint8_t *)target_obj) + o->offset) = fmt;
    return 0;
}

int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
{
601
    return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
602 603 604 605
}

int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
{
606
    return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
607 608
}

609 610 611 612 613 614 615 616 617 618 619 620
int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, int search_flags)
{
    void *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);

    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
    if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
        av_log(obj, AV_LOG_ERROR,
               "The value set by option '%s' is not a channel layout.\n", o->name);
        return AVERROR(EINVAL);
    }
621
    *(int64_t *)(((uint8_t *)target_obj) + o->offset) = cl;
622 623 624
    return 0;
}

625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642
int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val, int search_flags)
{
    void *target_obj;
    AVDictionary **dst;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);

    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
    if (o->flags & AV_OPT_FLAG_READONLY)
        return AVERROR(EINVAL);

    dst = (AVDictionary **)(((uint8_t *)target_obj) + o->offset);
    av_dict_free(dst);
    av_dict_copy(dst, val, 0);

    return 0;
}

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
static void format_duration(char *buf, size_t size, int64_t d)
{
    char *e;

    av_assert0(size >= 25);
    if (d < 0 && d != INT64_MIN) {
        *(buf++) = '-';
        size--;
        d = -d;
    }
    if (d == INT64_MAX)
        snprintf(buf, size, "INT64_MAX");
    else if (d == INT64_MIN)
        snprintf(buf, size, "INT64_MIN");
    else if (d > (int64_t)3600*1000000)
        snprintf(buf, size, "%"PRId64":%02d:%02d.%06d", d / 3600000000,
                 (int)((d / 60000000) % 60),
                 (int)((d / 1000000) % 60),
                 (int)(d % 1000000));
    else if (d > 60*1000000)
        snprintf(buf, size, "%d:%02d.%06d",
                 (int)(d / 60000000),
                 (int)((d / 1000000) % 60),
                 (int)(d % 1000000));
    else
        snprintf(buf, size, "%d.%06d",
                 (int)(d / 1000000),
                 (int)(d % 1000000));
    e = buf + strlen(buf);
    while (e > buf && e[-1] == '0')
        *(--e) = 0;
    if (e > buf && e[-1] == '.')
        *(--e) = 0;
}

678
int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
679
{
680 681 682 683
    void *dst, *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
    uint8_t *bin, buf[128];
    int len, i, ret;
684
    int64_t i64;
685

686
    if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
687
        return AVERROR_OPTION_NOT_FOUND;
688

689
    dst = (uint8_t*)target_obj + o->offset;
690

691
    buf[0] = 0;
692
    switch (o->type) {
693 694 695
    case AV_OPT_TYPE_BOOL:
        ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(get_bool_name(*(int *)dst), "invalid"));
        break;
696 697 698 699 700
    case AV_OPT_TYPE_FLAGS:     ret = snprintf(buf, sizeof(buf), "0x%08X",  *(int    *)dst);break;
    case AV_OPT_TYPE_INT:       ret = snprintf(buf, sizeof(buf), "%d" ,     *(int    *)dst);break;
    case AV_OPT_TYPE_INT64:     ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t*)dst);break;
    case AV_OPT_TYPE_FLOAT:     ret = snprintf(buf, sizeof(buf), "%f" ,     *(float  *)dst);break;
    case AV_OPT_TYPE_DOUBLE:    ret = snprintf(buf, sizeof(buf), "%f" ,     *(double *)dst);break;
701
    case AV_OPT_TYPE_VIDEO_RATE:
702
    case AV_OPT_TYPE_RATIONAL:  ret = snprintf(buf, sizeof(buf), "%d/%d",   ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
703
    case AV_OPT_TYPE_CONST:     ret = snprintf(buf, sizeof(buf), "%f" ,     o->default_val.dbl);break;
704
    case AV_OPT_TYPE_STRING:
705
        if (*(uint8_t**)dst) {
706
            *out_val = av_strdup(*(uint8_t**)dst);
707 708 709 710
        } else if (search_flags & AV_OPT_ALLOW_NULL) {
            *out_val = NULL;
            return 0;
        } else {
711
            *out_val = av_strdup("");
712
        }
713
        return *out_val ? 0 : AVERROR(ENOMEM);
714
    case AV_OPT_TYPE_BINARY:
715 716 717 718
        if (!*(uint8_t**)dst && (search_flags & AV_OPT_ALLOW_NULL)) {
            *out_val = NULL;
            return 0;
        }
719 720 721 722 723
        len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
        if ((uint64_t)len*2 + 1 > INT_MAX)
            return AVERROR(EINVAL);
        if (!(*out_val = av_malloc(len*2 + 1)))
            return AVERROR(ENOMEM);
724 725 726 727
        if (!len) {
            *out_val[0] = '\0';
            return 0;
        }
728 729 730 731
        bin = *(uint8_t**)dst;
        for (i = 0; i < len; i++)
            snprintf(*out_val + i*2, 3, "%02X", bin[i]);
        return 0;
732 733 734
    case AV_OPT_TYPE_IMAGE_SIZE:
        ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
        break;
735
    case AV_OPT_TYPE_PIXEL_FMT:
736
        ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
737
        break;
738 739 740
    case AV_OPT_TYPE_SAMPLE_FMT:
        ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
        break;
741 742
    case AV_OPT_TYPE_DURATION:
        i64 = *(int64_t *)dst;
743 744
        format_duration(buf, sizeof(buf), i64);
        ret = strlen(buf); // no overflow possible, checked by an assert
745
        break;
746
    case AV_OPT_TYPE_COLOR:
747 748 749
        ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x",
                       (int)((uint8_t *)dst)[0], (int)((uint8_t *)dst)[1],
                       (int)((uint8_t *)dst)[2], (int)((uint8_t *)dst)[3]);
750
        break;
751 752 753 754
    case AV_OPT_TYPE_CHANNEL_LAYOUT:
        i64 = *(int64_t *)dst;
        ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64);
        break;
755 756
    default:
        return AVERROR(EINVAL);
757
    }
758 759 760 761

    if (ret >= sizeof(buf))
        return AVERROR(EINVAL);
    *out_val = av_strdup(buf);
762
    return *out_val ? 0 : AVERROR(ENOMEM);
763 764 765 766 767 768 769 770
}

static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum,
                      int search_flags)
{
    void *dst, *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
    if (!o || !target_obj)
771 772
        goto error;

773
    dst = ((uint8_t*)target_obj) + o->offset;
774

775
    if (o_out) *o_out= o;
776

777 778
    return read_number(o, dst, num, den, intnum);

779 780 781 782 783
error:
    *den=*intnum=0;
    return -1;
}

784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822
int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
{
    int64_t intnum = 1;
    double     num = 1;
    int   ret, den = 1;

    if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
        return ret;
    *out_val = num*intnum/den;
    return 0;
}

int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
{
    int64_t intnum = 1;
    double     num = 1;
    int   ret, den = 1;

    if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
        return ret;
    *out_val = num*intnum/den;
    return 0;
}

int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
{
    int64_t intnum = 1;
    double     num = 1;
    int   ret, den = 1;

    if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
        return ret;

    if (num == 1.0 && (int)intnum == intnum)
        *out_val = (AVRational){intnum, den};
    else
        *out_val = av_d2q(num*intnum/den, 1<<24);
    return 0;
}
823

824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841
int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
{
    void *dst, *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
    if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
        av_log(obj, AV_LOG_ERROR,
               "The value for option '%s' is not an image size.\n", name);
        return AVERROR(EINVAL);
    }

    dst = ((uint8_t*)target_obj) + o->offset;
    if (w_out) *w_out = *(int *)dst;
    if (h_out) *h_out = *((int *)dst+1);
    return 0;
}

842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857
int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
{
    int64_t intnum = 1;
    double     num = 1;
    int   ret, den = 1;

    if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
        return ret;

    if (num == 1.0 && (int)intnum == intnum)
        *out_val = (AVRational){intnum, den};
    else
        *out_val = av_d2q(num*intnum/den, 1<<24);
    return 0;
}

858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885
static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
                      enum AVOptionType type, const char *desc)
{
    void *dst, *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
    if (o->type != type) {
        av_log(obj, AV_LOG_ERROR,
               "The value for option '%s' is not a %s format.\n", desc, name);
        return AVERROR(EINVAL);
    }

    dst = ((uint8_t*)target_obj) + o->offset;
    *out_fmt = *(int *)dst;
    return 0;
}

int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
{
    return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
}

int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
{
    return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
}

886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902
int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl)
{
    void *dst, *target_obj;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
    if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
        av_log(obj, AV_LOG_ERROR,
               "The value for option '%s' is not a channel layout.\n", name);
        return AVERROR(EINVAL);
    }

    dst = ((uint8_t*)target_obj) + o->offset;
    *cl = *(int64_t *)dst;
    return 0;
}

903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919
int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val)
{
    void *target_obj;
    AVDictionary *src;
    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);

    if (!o || !target_obj)
        return AVERROR_OPTION_NOT_FOUND;
    if (o->type != AV_OPT_TYPE_DICT)
        return AVERROR(EINVAL);

    src = *(AVDictionary **)(((uint8_t *)target_obj) + o->offset);
    av_dict_copy(out_val, src, 0);

    return 0;
}

920 921
int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
{
922
    const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
923 924
    const AVOption *flag  = av_opt_find(obj, flag_name,
                                        field ? field->unit : NULL, 0, 0);
925
    int64_t res;
926

927
    if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
928
        av_opt_get_int(obj, field_name, 0, &res) < 0)
929
        return 0;
930
    return res & flag->default_val.i64;
931 932
}

933 934 935 936 937 938
static void log_value(void *av_log_obj, int level, double d)
{
    if      (d == INT_MAX) {
        av_log(av_log_obj, level, "INT_MAX");
    } else if (d == INT_MIN) {
        av_log(av_log_obj, level, "INT_MIN");
939 940
    } else if (d == UINT32_MAX) {
        av_log(av_log_obj, level, "UINT32_MAX");
941 942 943 944 945 946 947 948
    } else if (d == (double)INT64_MAX) {
        av_log(av_log_obj, level, "I64_MAX");
    } else if (d == INT64_MIN) {
        av_log(av_log_obj, level, "I64_MIN");
    } else if (d == FLT_MAX) {
        av_log(av_log_obj, level, "FLT_MAX");
    } else if (d == FLT_MIN) {
        av_log(av_log_obj, level, "FLT_MIN");
949 950 951 952 953 954 955 956 957 958 959 960
    } else if (d == -FLT_MAX) {
        av_log(av_log_obj, level, "-FLT_MAX");
    } else if (d == -FLT_MIN) {
        av_log(av_log_obj, level, "-FLT_MIN");
    } else if (d == DBL_MAX) {
        av_log(av_log_obj, level, "DBL_MAX");
    } else if (d == DBL_MIN) {
        av_log(av_log_obj, level, "DBL_MIN");
    } else if (d == -DBL_MAX) {
        av_log(av_log_obj, level, "-DBL_MAX");
    } else if (d == -DBL_MIN) {
        av_log(av_log_obj, level, "-DBL_MIN");
961
    } else {
962
        av_log(av_log_obj, level, "%g", d);
963 964 965
    }
}

966 967 968 969 970 971 972 973 974 975 976 977 978
static const char *get_opt_const_name(void *obj, const char *unit, int64_t value)
{
    const AVOption *opt = NULL;

    if (!unit)
        return NULL;
    while ((opt = av_opt_next(obj, opt)))
        if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) &&
            opt->default_val.i64 == value)
            return opt->name;
    return NULL;
}

979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999
static char *get_opt_flags_string(void *obj, const char *unit, int64_t value)
{
    const AVOption *opt = NULL;
    char flags[512];

    flags[0] = 0;
    if (!unit)
        return NULL;
    while ((opt = av_opt_next(obj, opt))) {
        if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) &&
            opt->default_val.i64 & value) {
            if (flags[0])
                av_strlcatf(flags, sizeof(flags), "+");
            av_strlcatf(flags, sizeof(flags), "%s", opt->name);
        }
    }
    if (flags[0])
        return av_strdup(flags);
    return NULL;
}

1000 1001 1002 1003
static void opt_list(void *obj, void *av_log_obj, const char *unit,
                     int req_flags, int rej_flags)
{
    const AVOption *opt=NULL;
1004 1005
    AVOptionRanges *r;
    int i;
1006

1007
    while ((opt = av_opt_next(obj, opt))) {
1008 1009 1010 1011 1012 1013 1014
        if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
            continue;

        /* Don't print CONST's on level one.
         * Don't print anything but CONST's on level two.
         * Only print items from the requested unit.
         */
1015
        if (!unit && opt->type==AV_OPT_TYPE_CONST)
1016
            continue;
1017
        else if (unit && opt->type!=AV_OPT_TYPE_CONST)
1018
            continue;
1019
        else if (unit && opt->type==AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
1020
            continue;
1021
        else if (unit && opt->type == AV_OPT_TYPE_CONST)
1022
            av_log(av_log_obj, AV_LOG_INFO, "     %-15s ", opt->name);
1023
        else
1024 1025 1026
            av_log(av_log_obj, AV_LOG_INFO, "  %s%-17s ",
                   (opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-",
                   opt->name);
1027

1028
        switch (opt->type) {
1029
            case AV_OPT_TYPE_FLAGS:
1030
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>");
1031
                break;
1032
            case AV_OPT_TYPE_INT:
1033
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>");
1034
                break;
1035
            case AV_OPT_TYPE_INT64:
1036
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>");
1037
                break;
1038
            case AV_OPT_TYPE_DOUBLE:
1039
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>");
1040
                break;
1041
            case AV_OPT_TYPE_FLOAT:
1042
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>");
1043
                break;
1044
            case AV_OPT_TYPE_STRING:
1045
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>");
1046
                break;
1047
            case AV_OPT_TYPE_RATIONAL:
1048
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>");
1049
                break;
1050
            case AV_OPT_TYPE_BINARY:
1051
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>");
1052
                break;
1053
            case AV_OPT_TYPE_IMAGE_SIZE:
1054
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
1055
                break;
1056 1057 1058
            case AV_OPT_TYPE_VIDEO_RATE:
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
                break;
1059
            case AV_OPT_TYPE_PIXEL_FMT:
1060
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
1061
                break;
1062
            case AV_OPT_TYPE_SAMPLE_FMT:
1063
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>");
1064
                break;
1065 1066 1067
            case AV_OPT_TYPE_DURATION:
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>");
                break;
1068 1069 1070
            case AV_OPT_TYPE_COLOR:
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>");
                break;
1071 1072 1073
            case AV_OPT_TYPE_CHANNEL_LAYOUT:
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>");
                break;
1074 1075 1076
            case AV_OPT_TYPE_BOOL:
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<boolean>");
                break;
1077
            case AV_OPT_TYPE_CONST:
1078
            default:
1079
                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
1080 1081 1082 1083
                break;
        }
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
1084
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_FILTERING_PARAM)? 'F' : '.');
1085 1086 1087
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM   ) ? 'V' : '.');
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM   ) ? 'A' : '.');
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
1088 1089
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_EXPORT)         ? 'X' : '.');
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_READONLY)       ? 'R' : '.');
1090

1091 1092 1093
        if (opt->help)
            av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);

1094
        if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) {
1095 1096 1097 1098 1099 1100
            switch (opt->type) {
            case AV_OPT_TYPE_INT:
            case AV_OPT_TYPE_INT64:
            case AV_OPT_TYPE_DOUBLE:
            case AV_OPT_TYPE_FLOAT:
            case AV_OPT_TYPE_RATIONAL:
1101 1102
                for (i = 0; i < r->nb_ranges; i++) {
                    av_log(av_log_obj, AV_LOG_INFO, " (from ");
1103
                    log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
1104
                    av_log(av_log_obj, AV_LOG_INFO, " to ");
1105
                    log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
1106
                    av_log(av_log_obj, AV_LOG_INFO, ")");
1107 1108 1109 1110 1111 1112
                }
                break;
            }
            av_opt_freep_ranges(&r);
        }

1113 1114 1115 1116 1117 1118 1119 1120 1121
        if (opt->type != AV_OPT_TYPE_CONST  &&
            opt->type != AV_OPT_TYPE_BINARY &&
                !((opt->type == AV_OPT_TYPE_COLOR      ||
                   opt->type == AV_OPT_TYPE_IMAGE_SIZE ||
                   opt->type == AV_OPT_TYPE_STRING     ||
                   opt->type == AV_OPT_TYPE_VIDEO_RATE) &&
                  !opt->default_val.str)) {
            av_log(av_log_obj, AV_LOG_INFO, " (default ");
            switch (opt->type) {
1122 1123 1124
            case AV_OPT_TYPE_BOOL:
                av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(get_bool_name(opt->default_val.i64), "invalid"));
                break;
1125 1126 1127 1128 1129 1130 1131 1132
            case AV_OPT_TYPE_FLAGS: {
                char *def_flags = get_opt_flags_string(obj, opt->unit, opt->default_val.i64);
                if (def_flags) {
                    av_log(av_log_obj, AV_LOG_INFO, "%s", def_flags);
                    av_freep(&def_flags);
                } else {
                    av_log(av_log_obj, AV_LOG_INFO, "%"PRIX64, opt->default_val.i64);
                }
1133
                break;
1134
            }
1135 1136 1137 1138
            case AV_OPT_TYPE_DURATION: {
                char buf[25];
                format_duration(buf, sizeof(buf), opt->default_val.i64);
                av_log(av_log_obj, AV_LOG_INFO, "%s", buf);
1139
                break;
1140
            }
1141 1142 1143 1144 1145 1146 1147 1148 1149
            case AV_OPT_TYPE_INT:
            case AV_OPT_TYPE_INT64: {
                const char *def_const = get_opt_const_name(obj, opt->unit, opt->default_val.i64);
                if (def_const)
                    av_log(av_log_obj, AV_LOG_INFO, "%s", def_const);
                else
                    log_value(av_log_obj, AV_LOG_INFO, opt->default_val.i64);
                break;
            }
1150 1151 1152 1153 1154 1155 1156 1157
            case AV_OPT_TYPE_DOUBLE:
            case AV_OPT_TYPE_FLOAT:
                log_value(av_log_obj, AV_LOG_INFO, opt->default_val.dbl);
                break;
            case AV_OPT_TYPE_RATIONAL: {
                AVRational q = av_d2q(opt->default_val.dbl, INT_MAX);
                av_log(av_log_obj, AV_LOG_INFO, "%d/%d", q.num, q.den); }
                break;
1158
            case AV_OPT_TYPE_PIXEL_FMT:
1159
                av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(opt->default_val.i64), "none"));
1160 1161
                break;
            case AV_OPT_TYPE_SAMPLE_FMT:
1162
                av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(opt->default_val.i64), "none"));
1163
                break;
1164 1165 1166 1167 1168
            case AV_OPT_TYPE_COLOR:
            case AV_OPT_TYPE_IMAGE_SIZE:
            case AV_OPT_TYPE_STRING:
            case AV_OPT_TYPE_VIDEO_RATE:
                av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str);
1169 1170 1171 1172
                break;
            case AV_OPT_TYPE_CHANNEL_LAYOUT:
                av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64);
                break;
1173 1174 1175 1176
            }
            av_log(av_log_obj, AV_LOG_INFO, ")");
        }

1177
        av_log(av_log_obj, AV_LOG_INFO, "\n");
1178
        if (opt->unit && opt->type != AV_OPT_TYPE_CONST) {
1179 1180 1181 1182 1183 1184 1185
            opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
        }
    }
}

int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
{
1186
    if (!obj)
1187 1188 1189 1190 1191 1192 1193 1194 1195
        return -1;

    av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);

    opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);

    return 0;
}

1196 1197 1198 1199 1200
void av_opt_set_defaults(void *s)
{
    av_opt_set_defaults2(s, 0, 0);
}

1201 1202 1203
void av_opt_set_defaults2(void *s, int mask, int flags)
{
    const AVOption *opt = NULL;
1204
    while ((opt = av_opt_next(s, opt))) {
1205
        void *dst = ((uint8_t*)s) + opt->offset;
1206

1207
        if ((opt->flags & mask) != flags)
1208
            continue;
1209

1210 1211 1212
        if (opt->flags & AV_OPT_FLAG_READONLY)
            continue;

1213
        switch (opt->type) {
1214
            case AV_OPT_TYPE_CONST:
1215 1216
                /* Nothing to be done here */
            break;
1217
            case AV_OPT_TYPE_BOOL:
1218
            case AV_OPT_TYPE_FLAGS:
1219
            case AV_OPT_TYPE_INT:
1220
            case AV_OPT_TYPE_INT64:
1221
            case AV_OPT_TYPE_DURATION:
1222
            case AV_OPT_TYPE_CHANNEL_LAYOUT:
1223 1224
            case AV_OPT_TYPE_PIXEL_FMT:
            case AV_OPT_TYPE_SAMPLE_FMT:
1225
                write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1226
                break;
1227 1228
            case AV_OPT_TYPE_DOUBLE:
            case AV_OPT_TYPE_FLOAT: {
1229
                double val;
1230
                val = opt->default_val.dbl;
1231
                write_number(s, opt, dst, val, 1, 1);
1232 1233
            }
            break;
1234
            case AV_OPT_TYPE_RATIONAL: {
1235
                AVRational val;
1236
                val = av_d2q(opt->default_val.dbl, INT_MAX);
1237
                write_number(s, opt, dst, 1, val.den, val.num);
1238 1239
            }
            break;
1240
            case AV_OPT_TYPE_COLOR:
1241 1242
                set_string_color(s, opt, opt->default_val.str, dst);
                break;
1243
            case AV_OPT_TYPE_STRING:
1244 1245
                set_string(s, opt, opt->default_val.str, dst);
                break;
1246
            case AV_OPT_TYPE_IMAGE_SIZE:
1247 1248
                set_string_image_size(s, opt, opt->default_val.str, dst);
                break;
1249
            case AV_OPT_TYPE_VIDEO_RATE:
1250
                set_string_video_rate(s, opt, opt->default_val.str, dst);
1251
                break;
1252
            case AV_OPT_TYPE_BINARY:
1253 1254
                set_string_binary(s, opt, opt->default_val.str, dst);
                break;
1255 1256
            case AV_OPT_TYPE_DICT:
                /* Cannot set defaults for these types */
1257 1258 1259 1260 1261 1262 1263
            break;
            default:
                av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
        }
    }
}

1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277
/**
 * Store the value in the field in ctx that is named like key.
 * ctx must be an AVClass context, storing is done using AVOptions.
 *
 * @param buf the string to parse, buf will be updated to point at the
 * separator just after the parsed key/value pair
 * @param key_val_sep a 0-terminated list of characters used to
 * separate key from value
 * @param pairs_sep a 0-terminated list of characters used to separate
 * two pairs from each other
 * @return 0 if the key/value pair has been successfully parsed and
 * set, or a negative value corresponding to an AVERROR code in case
 * of error:
 * AVERROR(EINVAL) if the key/value pair cannot be parsed,
1278
 * the error code issued by av_opt_set() if the key/value pair
1279 1280 1281 1282 1283 1284 1285 1286 1287
 * cannot be set
 */
static int parse_key_value_pair(void *ctx, const char **buf,
                                const char *key_val_sep, const char *pairs_sep)
{
    char *key = av_get_token(buf, key_val_sep);
    char *val;
    int ret;

1288 1289 1290
    if (!key)
        return AVERROR(ENOMEM);

1291 1292 1293
    if (*key && strspn(*buf, key_val_sep)) {
        (*buf)++;
        val = av_get_token(buf, pairs_sep);
1294 1295 1296 1297
        if (!val) {
            av_freep(&key);
            return AVERROR(ENOMEM);
        }
1298 1299 1300 1301 1302 1303
    } else {
        av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
        av_free(key);
        return AVERROR(EINVAL);
    }

1304
    av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val);
1305

1306
    ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN);
1307
    if (ret == AVERROR_OPTION_NOT_FOUND)
1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319
        av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);

    av_free(key);
    av_free(val);
    return ret;
}

int av_set_options_string(void *ctx, const char *opts,
                          const char *key_val_sep, const char *pairs_sep)
{
    int ret, count = 0;

1320 1321
    if (!opts)
        return 0;
1322

1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334
    while (*opts) {
        if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
            return ret;
        count++;

        if (*opts)
            opts++;
    }

    return count;
}

1335 1336 1337 1338 1339 1340 1341 1342 1343 1344
#define WHITESPACES " \n\t"

static int is_key_char(char c)
{
    return (unsigned)((c | 32) - 'a') < 26 ||
           (unsigned)(c - '0') < 10 ||
           c == '-' || c == '_' || c == '/' || c == '.';
}

/**
1345 1346 1347
 * Read a key from a string.
 *
 * The key consists of is_key_char characters and must be terminated by a
1348
 * character from the delim string; spaces are ignored.
1349 1350
 *
 * @return  0 for success (even with ellipsis), <0 for failure
1351
 */
1352
static int get_key(const char **ropts, const char *delim, char **rkey)
1353 1354
{
    const char *opts = *ropts;
1355
    const char *key_start, *key_end;
1356

1357 1358 1359 1360
    key_start = opts += strspn(opts, WHITESPACES);
    while (is_key_char(*opts))
        opts++;
    key_end = opts;
1361 1362 1363 1364
    opts += strspn(opts, WHITESPACES);
    if (!*opts || !strchr(delim, *opts))
        return AVERROR(EINVAL);
    opts++;
1365 1366 1367 1368
    if (!(*rkey = av_malloc(key_end - key_start + 1)))
        return AVERROR(ENOMEM);
    memcpy(*rkey, key_start, key_end - key_start);
    (*rkey)[key_end - key_start] = 0;
1369 1370 1371 1372
    *ropts = opts;
    return 0;
}

1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394
int av_opt_get_key_value(const char **ropts,
                         const char *key_val_sep, const char *pairs_sep,
                         unsigned flags,
                         char **rkey, char **rval)
{
    int ret;
    char *key = NULL, *val;
    const char *opts = *ropts;

    if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
        !(flags & AV_OPT_FLAG_IMPLICIT_KEY))
        return AVERROR(EINVAL);
    if (!(val = av_get_token(&opts, pairs_sep))) {
        av_free(key);
        return AVERROR(ENOMEM);
    }
    *ropts = opts;
    *rkey  = key;
    *rval  = val;
    return 0;
}

1395 1396 1397 1398 1399 1400
int av_opt_set_from_string(void *ctx, const char *opts,
                           const char *const *shorthand,
                           const char *key_val_sep, const char *pairs_sep)
{
    int ret, count = 0;
    const char *dummy_shorthand = NULL;
1401
    char *av_uninit(parsed_key), *av_uninit(value);
1402 1403 1404 1405 1406 1407 1408 1409
    const char *key;

    if (!opts)
        return 0;
    if (!shorthand)
        shorthand = &dummy_shorthand;

    while (*opts) {
1410 1411 1412 1413 1414
        ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
                                   *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
                                   &parsed_key, &value);
        if (ret < 0) {
            if (ret == AVERROR(EINVAL))
1415
                av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts);
1416 1417 1418 1419 1420
            else
                av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts,
                       av_err2str(ret));
            return ret;
        }
1421 1422
        if (*opts)
            opts++;
1423
        if (parsed_key) {
1424
            key = parsed_key;
1425 1426
            while (*shorthand) /* discard all remaining shorthand */
                shorthand++;
1427 1428
        } else {
            key = *(shorthand++);
1429 1430 1431 1432 1433 1434
        }

        av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
        if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
            if (ret == AVERROR_OPTION_NOT_FOUND)
                av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
1435
            av_free(value);
1436
            av_free(parsed_key);
1437 1438 1439 1440
            return ret;
        }

        av_free(value);
1441
        av_free(parsed_key);
1442 1443 1444 1445 1446
        count++;
    }
    return count;
}

1447 1448 1449
void av_opt_free(void *obj)
{
    const AVOption *o = NULL;
1450 1451 1452 1453
    while ((o = av_opt_next(obj, o))) {
        switch (o->type) {
        case AV_OPT_TYPE_STRING:
        case AV_OPT_TYPE_BINARY:
1454
            av_freep((uint8_t *)obj + o->offset);
1455 1456 1457 1458 1459 1460 1461 1462 1463 1464
            break;

        case AV_OPT_TYPE_DICT:
            av_dict_free((AVDictionary **)(((uint8_t *)obj) + o->offset));
            break;

        default:
            break;
        }
    }
1465 1466
}

1467
int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags)
1468 1469 1470 1471 1472
{
    AVDictionaryEntry *t = NULL;
    AVDictionary    *tmp = NULL;
    int ret = 0;

1473 1474 1475
    if (!options)
        return 0;

1476
    while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
1477
        ret = av_opt_set(obj, t->key, t->value, search_flags);
1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490
        if (ret == AVERROR_OPTION_NOT_FOUND)
            av_dict_set(&tmp, t->key, t->value, 0);
        else if (ret < 0) {
            av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
            break;
        }
        ret = 0;
    }
    av_dict_free(options);
    *options = tmp;
    return ret;
}

1491 1492 1493 1494 1495
int av_opt_set_dict(void *obj, AVDictionary **options)
{
    return av_opt_set_dict2(obj, options, 0);
}

1496 1497 1498
const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
                            int opt_flags, int search_flags)
{
1499 1500 1501 1502 1503 1504
    return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
}

const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
                             int opt_flags, int search_flags, void **target_obj)
{
1505
    const AVClass  *c;
1506 1507
    const AVOption *o = NULL;

1508 1509 1510 1511 1512
    if(!obj)
        return NULL;

    c= *(AVClass**)obj;

1513 1514 1515
    if (!c)
        return NULL;

1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528
    if (search_flags & AV_OPT_SEARCH_CHILDREN) {
        if (search_flags & AV_OPT_SEARCH_FAKE_OBJ) {
            const AVClass *child = NULL;
            while (child = av_opt_child_class_next(c, child))
                if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL))
                    return o;
        } else {
            void *child = NULL;
            while (child = av_opt_child_next(obj, child))
                if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
                    return o;
        }
    }
1529

1530
    while (o = av_opt_next(obj, o)) {
1531
        if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
1532
            ((!unit && o->type != AV_OPT_TYPE_CONST) ||
1533
             (unit  && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) {
1534 1535 1536 1537 1538 1539
            if (target_obj) {
                if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ))
                    *target_obj = obj;
                else
                    *target_obj = NULL;
            }
1540
            return o;
1541
        }
1542 1543 1544 1545
    }
    return NULL;
}

1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560
void *av_opt_child_next(void *obj, void *prev)
{
    const AVClass *c = *(AVClass**)obj;
    if (c->child_next)
        return c->child_next(obj, prev);
    return NULL;
}

const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
{
    if (parent->child_class_next)
        return parent->child_class_next(prev);
    return NULL;
}

1561 1562
void *av_opt_ptr(const AVClass *class, void *obj, const char *name)
{
1563
    const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL);
1564 1565 1566 1567 1568
    if(!opt)
        return NULL;
    return (uint8_t*)obj + opt->offset;
}

1569 1570 1571
static int opt_size(enum AVOptionType type)
{
    switch(type) {
1572
    case AV_OPT_TYPE_BOOL:
1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591
    case AV_OPT_TYPE_INT:
    case AV_OPT_TYPE_FLAGS:     return sizeof(int);
    case AV_OPT_TYPE_DURATION:
    case AV_OPT_TYPE_CHANNEL_LAYOUT:
    case AV_OPT_TYPE_INT64:     return sizeof(int64_t);
    case AV_OPT_TYPE_DOUBLE:    return sizeof(double);
    case AV_OPT_TYPE_FLOAT:     return sizeof(float);
    case AV_OPT_TYPE_STRING:    return sizeof(uint8_t*);
    case AV_OPT_TYPE_VIDEO_RATE:
    case AV_OPT_TYPE_RATIONAL:  return sizeof(AVRational);
    case AV_OPT_TYPE_BINARY:    return sizeof(uint8_t*) + sizeof(int);
    case AV_OPT_TYPE_IMAGE_SIZE:return sizeof(int[2]);
    case AV_OPT_TYPE_PIXEL_FMT: return sizeof(enum AVPixelFormat);
    case AV_OPT_TYPE_SAMPLE_FMT:return sizeof(enum AVSampleFormat);
    case AV_OPT_TYPE_COLOR:     return 4;
    }
    return 0;
}

1592
int av_opt_copy(void *dst, const void *src)
1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611
{
    const AVOption *o = NULL;
    const AVClass *c;
    int ret = 0;

    if (!src)
        return 0;

    c = *(AVClass**)src;
    if (*(AVClass**)dst && c != *(AVClass**)dst)
        return AVERROR(EINVAL);

    while ((o = av_opt_next(src, o))) {
        void *field_dst = ((uint8_t*)dst) + o->offset;
        void *field_src = ((uint8_t*)src) + o->offset;
        uint8_t **field_dst8 = (uint8_t**)field_dst;
        uint8_t **field_src8 = (uint8_t**)field_src;

        if (o->type == AV_OPT_TYPE_STRING) {
1612 1613 1614
            if (*field_dst8 != *field_src8)
                av_freep(field_dst8);
            *field_dst8 = av_strdup(*field_src8);
1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628
            if (*field_src8 && !*field_dst8)
                ret = AVERROR(ENOMEM);
        } else if (o->type == AV_OPT_TYPE_BINARY) {
            int len = *(int*)(field_src8 + 1);
            if (*field_dst8 != *field_src8)
                av_freep(field_dst8);
            *field_dst8 = av_memdup(*field_src8, len);
            if (len && !*field_dst8) {
                ret = AVERROR(ENOMEM);
                len = 0;
            }
            *(int*)(field_dst8 + 1) = len;
        } else if (o->type == AV_OPT_TYPE_CONST) {
            // do nothing
1629 1630 1631 1632 1633 1634 1635 1636 1637
        } else if (o->type == AV_OPT_TYPE_DICT) {
            AVDictionary **sdict = (AVDictionary **) field_src;
            AVDictionary **ddict = (AVDictionary **) field_dst;
            if (*sdict != *ddict)
                av_dict_free(ddict);
            *ddict = NULL;
            av_dict_copy(ddict, *sdict, 0);
            if (av_dict_count(*sdict) != av_dict_count(*ddict))
                ret = AVERROR(ENOMEM);
1638 1639 1640 1641 1642 1643 1644
        } else {
            memcpy(field_dst, field_src, opt_size(o->type));
        }
    }
    return ret;
}

1645 1646
int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
{
1647
    int ret;
1648 1649 1650
    const AVClass *c = *(AVClass**)obj;
    int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL;

1651
    if (c->version > (52 << 16 | 11 << 8))
1652 1653
        callback = c->query_ranges;

1654
    if (!callback)
1655 1656
        callback = av_opt_query_ranges_default;

1657 1658 1659 1660 1661 1662 1663
    ret = callback(ranges_arg, obj, key, flags);
    if (ret >= 0) {
        if (!(flags & AV_OPT_MULTI_COMPONENT_RANGE))
            ret = 1;
        (*ranges_arg)->nb_components = ret;
    }
    return ret;
1664 1665
}

1666 1667
int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
{
1668 1669 1670 1671
    AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
    AVOptionRange **range_array = av_mallocz(sizeof(void*));
    AVOptionRange *range = av_mallocz(sizeof(*range));
    const AVOption *field = av_opt_find(obj, key, NULL, 0, flags);
1672
    int ret;
1673 1674 1675

    *ranges_arg = NULL;

1676 1677
    if (!ranges || !range || !range_array || !field) {
        ret = AVERROR(ENOMEM);
1678
        goto fail;
1679
    }
1680 1681 1682 1683

    ranges->range = range_array;
    ranges->range[0] = range;
    ranges->nb_ranges = 1;
1684
    ranges->nb_components = 1;
1685 1686 1687 1688
    range->is_range = 1;
    range->value_min = field->min;
    range->value_max = field->max;

1689
    switch (field->type) {
1690
    case AV_OPT_TYPE_BOOL:
1691 1692 1693 1694 1695 1696
    case AV_OPT_TYPE_INT:
    case AV_OPT_TYPE_INT64:
    case AV_OPT_TYPE_PIXEL_FMT:
    case AV_OPT_TYPE_SAMPLE_FMT:
    case AV_OPT_TYPE_FLOAT:
    case AV_OPT_TYPE_DOUBLE:
1697
    case AV_OPT_TYPE_DURATION:
1698
    case AV_OPT_TYPE_COLOR:
1699
    case AV_OPT_TYPE_CHANNEL_LAYOUT:
1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716
        break;
    case AV_OPT_TYPE_STRING:
        range->component_min = 0;
        range->component_max = 0x10FFFF; // max unicode value
        range->value_min = -1;
        range->value_max = INT_MAX;
        break;
    case AV_OPT_TYPE_RATIONAL:
        range->component_min = INT_MIN;
        range->component_max = INT_MAX;
        break;
    case AV_OPT_TYPE_IMAGE_SIZE:
        range->component_min = 0;
        range->component_max = INT_MAX/128/8;
        range->value_min = 0;
        range->value_max = INT_MAX/8;
        break;
1717 1718 1719 1720 1721 1722
    case AV_OPT_TYPE_VIDEO_RATE:
        range->component_min = 1;
        range->component_max = INT_MAX;
        range->value_min = 1;
        range->value_max = INT_MAX;
        break;
1723
    default:
1724
        ret = AVERROR(ENOSYS);
1725 1726 1727 1728
        goto fail;
    }

    *ranges_arg = ranges;
1729
    return 1;
1730 1731 1732
fail:
    av_free(ranges);
    av_free(range);
1733
    av_free(range_array);
1734
    return ret;
1735 1736
}

1737 1738
void av_opt_freep_ranges(AVOptionRanges **rangesp)
{
1739 1740 1741
    int i;
    AVOptionRanges *ranges = *rangesp;

1742 1743 1744
    if (!ranges)
        return;

1745
    for (i = 0; i < ranges->nb_ranges * ranges->nb_components; i++) {
1746
        AVOptionRange *range = ranges->range[i];
1747 1748 1749 1750
        if (range) {
            av_freep(&range->str);
            av_freep(&ranges->range[i]);
        }
1751 1752 1753 1754 1755
    }
    av_freep(&ranges->range);
    av_freep(rangesp);
}

1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773
int av_opt_is_set_to_default(void *obj, const AVOption *o)
{
    int64_t i64;
    double d, d2;
    float f;
    AVRational q;
    int ret, w, h;
    char *str;
    void *dst;

    if (!o || !obj)
        return AVERROR(EINVAL);

    dst = ((uint8_t*)obj) + o->offset;

    switch (o->type) {
    case AV_OPT_TYPE_CONST:
        return 1;
1774
    case AV_OPT_TYPE_BOOL:
1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808
    case AV_OPT_TYPE_FLAGS:
    case AV_OPT_TYPE_PIXEL_FMT:
    case AV_OPT_TYPE_SAMPLE_FMT:
    case AV_OPT_TYPE_INT:
    case AV_OPT_TYPE_CHANNEL_LAYOUT:
    case AV_OPT_TYPE_DURATION:
    case AV_OPT_TYPE_INT64:
        read_number(o, dst, NULL, NULL, &i64);
        return o->default_val.i64 == i64;
    case AV_OPT_TYPE_STRING:
        str = *(char **)dst;
        if (str == o->default_val.str) //2 NULLs
            return 1;
        if (!str || !o->default_val.str) //1 NULL
            return 0;
        return !strcmp(str, o->default_val.str);
    case AV_OPT_TYPE_DOUBLE:
        read_number(o, dst, &d, NULL, NULL);
        return o->default_val.dbl == d;
    case AV_OPT_TYPE_FLOAT:
        read_number(o, dst, &d, NULL, NULL);
        f = o->default_val.dbl;
        d2 = f;
        return d2 == d;
    case AV_OPT_TYPE_RATIONAL:
        q = av_d2q(o->default_val.dbl, INT_MAX);
        return !av_cmp_q(*(AVRational*)dst, q);
    case AV_OPT_TYPE_BINARY: {
        struct {
            uint8_t *data;
            int size;
        } tmp = {0};
        int opt_size = *(int *)((void **)dst + 1);
        void *opt_ptr = *(void **)dst;
1809
        if (!opt_size && (!o->default_val.str || !strlen(o->default_val.str)))
1810
            return 1;
1811
        if (!opt_size ||  !o->default_val.str || !strlen(o->default_val.str ))
1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831
            return 0;
        if (opt_size != strlen(o->default_val.str) / 2)
            return 0;
        ret = set_string_binary(NULL, NULL, o->default_val.str, &tmp.data);
        if (!ret)
            ret = !memcmp(opt_ptr, tmp.data, tmp.size);
        av_free(tmp.data);
        return ret;
    }
    case AV_OPT_TYPE_DICT:
        /* Binary and dict have not default support yet. Any pointer is not default. */
        return !!(*(void **)dst);
    case AV_OPT_TYPE_IMAGE_SIZE:
        if (!o->default_val.str || !strcmp(o->default_val.str, "none"))
            w = h = 0;
        else if ((ret = av_parse_video_size(&w, &h, o->default_val.str)) < 0)
            return ret;
        return (w == *(int *)dst) && (h == *((int *)dst+1));
    case AV_OPT_TYPE_VIDEO_RATE:
        q = (AVRational){0, 0};
1832 1833 1834 1835
        if (o->default_val.str) {
            if ((ret = av_parse_video_rate(&q, o->default_val.str)) < 0)
                return ret;
        }
1836 1837 1838
        return !av_cmp_q(*(AVRational*)dst, q);
    case AV_OPT_TYPE_COLOR: {
        uint8_t color[4] = {0, 0, 0, 0};
1839 1840 1841 1842
        if (o->default_val.str) {
            if ((ret = av_parse_color(color, o->default_val.str, -1, NULL)) < 0)
                return ret;
        }
1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863
        return !memcmp(color, dst, sizeof(color));
    }
    default:
        av_log(obj, AV_LOG_WARNING, "Not supported option type: %d, option name: %s\n", o->type, o->name);
        break;
    }
    return AVERROR_PATCHWELCOME;
}

int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags)
{
    const AVOption *o;
    void *target;
    if (!obj)
        return AVERROR(EINVAL);
    o = av_opt_find2(obj, name, NULL, 0, search_flags, &target);
    if (!o)
        return AVERROR_OPTION_NOT_FOUND;
    return av_opt_is_set_to_default(target, o);
}

1864 1865 1866 1867 1868 1869 1870
int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer,
                     const char key_val_sep, const char pairs_sep)
{
    const AVOption *o = NULL;
    uint8_t *buf;
    AVBPrint bprint;
    int ret, cnt = 0;
1871 1872 1873 1874 1875 1876 1877
    const char special_chars[] = {pairs_sep, key_val_sep, '\0'};

    if (pairs_sep == '\0' || key_val_sep == '\0' || pairs_sep == key_val_sep ||
        pairs_sep == '\\' || key_val_sep == '\\') {
        av_log(obj, AV_LOG_ERROR, "Invalid separator(s) found.");
        return AVERROR(EINVAL);
    }
1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900

    if (!obj || !buffer)
        return AVERROR(EINVAL);

    *buffer = NULL;
    av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED);

    while (o = av_opt_next(obj, o)) {
        if (o->type == AV_OPT_TYPE_CONST)
            continue;
        if ((flags & AV_OPT_SERIALIZE_OPT_FLAGS_EXACT) && o->flags != opt_flags)
            continue;
        else if (((o->flags & opt_flags) != opt_flags))
            continue;
        if (flags & AV_OPT_SERIALIZE_SKIP_DEFAULTS && av_opt_is_set_to_default(obj, o) > 0)
            continue;
        if ((ret = av_opt_get(obj, o->name, 0, &buf)) < 0) {
            av_bprint_finalize(&bprint, NULL);
            return ret;
        }
        if (buf) {
            if (cnt++)
                av_bprint_append_data(&bprint, &pairs_sep, 1);
1901 1902 1903
            av_bprint_escape(&bprint, o->name, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
            av_bprint_append_data(&bprint, &key_val_sep, 1);
            av_bprint_escape(&bprint, buf, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
1904 1905 1906 1907 1908 1909 1910
            av_freep(&buf);
        }
    }
    av_bprint_finalize(&bprint, buffer);
    return 0;
}

1911 1912 1913 1914 1915 1916 1917 1918 1919 1920
#ifdef TEST

typedef struct TestContext
{
    const AVClass *class;
    int num;
    int toggle;
    char *string;
    int flags;
    AVRational rational;
1921
    AVRational video_rate;
1922
    int w, h;
1923
    enum AVPixelFormat pix_fmt;
1924
    enum AVSampleFormat sample_fmt;
1925
    int64_t duration;
1926
    uint8_t color[4];
1927
    int64_t channel_layout;
Lukasz Marek's avatar
Lukasz Marek committed
1928 1929
    void *binary;
    int binary_size;
1930 1931 1932 1933
    void *binary1;
    int binary_size1;
    void *binary2;
    int binary_size2;
Lukasz Marek's avatar
Lukasz Marek committed
1934 1935 1936
    int64_t num64;
    float flt;
    double dbl;
1937
    char *escape;
1938 1939 1940
    int bool1;
    int bool2;
    int bool3;
1941 1942 1943 1944 1945 1946 1947 1948 1949
} TestContext;

#define OFFSET(x) offsetof(TestContext, x)

#define TEST_FLAG_COOL 01
#define TEST_FLAG_LAME 02
#define TEST_FLAG_MU   04

static const AVOption test_options[]= {
1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971
{"num",      "set num",        OFFSET(num),      AV_OPT_TYPE_INT,      {.i64 = 0},       0,        100, 1              },
{"toggle",   "set toggle",     OFFSET(toggle),   AV_OPT_TYPE_INT,      {.i64 = 1},       0,        1,   1              },
{"rational", "set rational",   OFFSET(rational), AV_OPT_TYPE_RATIONAL, {.dbl = 1},       0,        10,  1              },
{"string",   "set string",     OFFSET(string),   AV_OPT_TYPE_STRING,   {.str = "default"}, CHAR_MIN, CHAR_MAX, 1       },
{"escape",   "set escape str", OFFSET(escape),   AV_OPT_TYPE_STRING,   {.str = "\\=,"}, CHAR_MIN, CHAR_MAX, 1          },
{"flags",    "set flags",      OFFSET(flags),    AV_OPT_TYPE_FLAGS,    {.i64 = 1},       0,        INT_MAX, 1, "flags" },
{"cool",     "set cool flag",  0,                AV_OPT_TYPE_CONST,    {.i64 = TEST_FLAG_COOL}, INT_MIN,  INT_MAX, 1, "flags" },
{"lame",     "set lame flag",  0,                AV_OPT_TYPE_CONST,    {.i64 = TEST_FLAG_LAME}, INT_MIN,  INT_MAX, 1, "flags" },
{"mu",       "set mu flag",    0,                AV_OPT_TYPE_CONST,    {.i64 = TEST_FLAG_MU},   INT_MIN,  INT_MAX, 1, "flags" },
{"size",     "set size",       OFFSET(w),        AV_OPT_TYPE_IMAGE_SIZE,{.str="200x300"},             0,        0, 1},
{"pix_fmt",  "set pixfmt",     OFFSET(pix_fmt),  AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_0BGR}, -1, INT_MAX, 1},
{"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64 = AV_SAMPLE_FMT_S16}, -1, INT_MAX, 1},
{"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE,  {.str = "25"}, 0,     0                   , 1},
{"duration", "set duration",   OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 1000}, 0, INT64_MAX, 1},
{"color", "set color",   OFFSET(color), AV_OPT_TYPE_COLOR, {.str = "pink"}, 0, 0, 1},
{"cl", "set channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64 = AV_CH_LAYOUT_HEXAGONAL}, 0, INT64_MAX, 1},
{"bin", "set binary value",    OFFSET(binary),   AV_OPT_TYPE_BINARY,   {.str="62696e00"}, 0,        0, 1 },
{"bin1", "set binary value",   OFFSET(binary1),  AV_OPT_TYPE_BINARY,   {.str=NULL},       0,        0, 1 },
{"bin2", "set binary value",   OFFSET(binary2),  AV_OPT_TYPE_BINARY,   {.str=""},         0,        0, 1 },
{"num64",    "set num 64bit",  OFFSET(num64),    AV_OPT_TYPE_INT64,    {.i64 = 1},        0,        100, 1 },
{"flt",      "set float",      OFFSET(flt),      AV_OPT_TYPE_FLOAT,    {.dbl = 1.0/3},    0,        100, 1},
{"dbl",      "set double",     OFFSET(dbl),      AV_OPT_TYPE_DOUBLE,   {.dbl = 1.0/3},    0,        100, 1 },
1972 1973 1974
{"bool1", "set boolean value",  OFFSET(bool1),   AV_OPT_TYPE_BOOL,     {.i64 = -1},      -1,        1, 1 },
{"bool2", "set boolean value",  OFFSET(bool2),   AV_OPT_TYPE_BOOL,     {.i64 = 1},       -1,        1, 1 },
{"bool3", "set boolean value",  OFFSET(bool3),   AV_OPT_TYPE_BOOL,     {.i64 = 0},        0,        1, 1 },
1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988
{NULL},
};

static const char *test_get_name(void *ctx)
{
    return "test";
}

static const AVClass test_class = {
    "TestContext",
    test_get_name,
    test_options
};

1989 1990 1991 1992 1993
static void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
{
    vfprintf(stdout, fmt, vl);
}

1994 1995 1996 1997
int main(void)
{
    int i;

1998 1999 2000
    av_log_set_level(AV_LOG_DEBUG);
    av_log_set_callback(log_callback_help);

Lukasz Marek's avatar
Lukasz Marek committed
2001 2002 2003 2004 2005 2006 2007 2008 2009
    printf("Testing default values\n");
    {
        TestContext test_ctx = { 0 };
        test_ctx.class = &test_class;
        av_opt_set_defaults(&test_ctx);

        printf("num=%d\n", test_ctx.num);
        printf("toggle=%d\n", test_ctx.toggle);
        printf("string=%s\n", test_ctx.string);
2010
        printf("escape=%s\n", test_ctx.escape);
Lukasz Marek's avatar
Lukasz Marek committed
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
        printf("flags=%d\n", test_ctx.flags);
        printf("rational=%d/%d\n", test_ctx.rational.num, test_ctx.rational.den);
        printf("video_rate=%d/%d\n", test_ctx.video_rate.num, test_ctx.video_rate.den);
        printf("width=%d height=%d\n", test_ctx.w, test_ctx.h);
        printf("pix_fmt=%s\n", av_get_pix_fmt_name(test_ctx.pix_fmt));
        printf("sample_fmt=%s\n", av_get_sample_fmt_name(test_ctx.sample_fmt));
        printf("duration=%"PRId64"\n", test_ctx.duration);
        printf("color=%d %d %d %d\n", test_ctx.color[0], test_ctx.color[1], test_ctx.color[2], test_ctx.color[3]);
        printf("channel_layout=%"PRId64"=%"PRId64"\n", test_ctx.channel_layout, (int64_t)AV_CH_LAYOUT_HEXAGONAL);
        if (test_ctx.binary)
            printf("binary=%x %x %x %x\n", ((uint8_t*)test_ctx.binary)[0], ((uint8_t*)test_ctx.binary)[1], ((uint8_t*)test_ctx.binary)[2], ((uint8_t*)test_ctx.binary)[3]);
        printf("binary_size=%d\n", test_ctx.binary_size);
        printf("num64=%"PRId64"\n", test_ctx.num64);
        printf("flt=%.6f\n", test_ctx.flt);
        printf("dbl=%.6f\n", test_ctx.dbl);
2026 2027 2028

        av_opt_show2(&test_ctx, NULL, -1, 0);

2029
        av_opt_free(&test_ctx);
Lukasz Marek's avatar
Lukasz Marek committed
2030 2031
    }

2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052
    printf("\nTesting av_opt_is_set_to_default()\n");
    {
        int ret;
        TestContext test_ctx = { 0 };
        const AVOption *o = NULL;
        test_ctx.class = &test_class;

        av_log_set_level(AV_LOG_QUIET);

        while (o = av_opt_next(&test_ctx, o)) {
            ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0);
            printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : "");
        }
        av_opt_set_defaults(&test_ctx);
        while (o = av_opt_next(&test_ctx, o)) {
            ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0);
            printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : "");
        }
        av_opt_free(&test_ctx);
    }

2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076
    printf("\nTest av_opt_serialize()\n");
    {
        TestContext test_ctx = { 0 };
        char *buf;
        test_ctx.class = &test_class;

        av_log_set_level(AV_LOG_QUIET);

        av_opt_set_defaults(&test_ctx);
        if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) {
            printf("%s\n", buf);
            av_opt_free(&test_ctx);
            memset(&test_ctx, 0, sizeof(test_ctx));
            test_ctx.class = &test_class;
            av_set_options_string(&test_ctx, buf, "=", ",");
            av_free(buf);
            if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) {
                printf("%s\n", buf);
                av_free(buf);
            }
        }
        av_opt_free(&test_ctx);
    }

2077 2078
    printf("\nTesting av_set_options_string()\n");
    {
2079
        TestContext test_ctx = { 0 };
2080
        static const char * const options[] = {
2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099
            "",
            ":",
            "=",
            "foo=:",
            ":=foo",
            "=foo",
            "foo=",
            "foo",
            "foo=val",
            "foo==val",
            "toggle=:",
            "string=:",
            "toggle=1 : foo",
            "toggle=100",
            "toggle==1",
            "flags=+mu-lame : num=42: toggle=0",
            "num=42 : string=blahblah",
            "rational=0 : rational=1/2 : rational=1/-1",
            "rational=-1/0",
2100 2101 2102 2103 2104 2105
            "size=1024x768",
            "size=pal",
            "size=bogus",
            "pix_fmt=yuv420p",
            "pix_fmt=2",
            "pix_fmt=bogus",
2106 2107 2108
            "sample_fmt=s16",
            "sample_fmt=2",
            "sample_fmt=bogus",
2109 2110 2111 2112 2113
            "video_rate=pal",
            "video_rate=25",
            "video_rate=30000/1001",
            "video_rate=30/1.001",
            "video_rate=bogus",
2114 2115 2116
            "duration=bogus",
            "duration=123.45",
            "duration=1\\:23\\:45.67",
2117 2118 2119
            "color=blue",
            "color=0x223300",
            "color=0x42FF07AA",
2120 2121
            "cl=stereo+downmix",
            "cl=foo",
Lukasz Marek's avatar
Lukasz Marek committed
2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139
            "bin=boguss",
            "bin=111",
            "bin=ffff",
            "num64=bogus",
            "num64=44",
            "num64=44.4",
            "num64=-1",
            "num64=101",
            "flt=bogus",
            "flt=2",
            "flt=2.2",
            "flt=-1",
            "flt=101",
            "dbl=bogus",
            "dbl=2",
            "dbl=2.2",
            "dbl=-1",
            "dbl=101",
2140 2141
            "bool1=true",
            "bool2=auto",
2142 2143 2144
        };

        test_ctx.class = &test_class;
2145
        av_opt_set_defaults(&test_ctx);
2146

Lukasz Marek's avatar
Lukasz Marek committed
2147
        av_log_set_level(AV_LOG_QUIET);
2148 2149

        for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
2150
            int silence_log = !strcmp(options[i], "rational=-1/0"); // inf formating differs between platforms
2151
            av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
2152 2153
            if (silence_log)
                av_log_set_callback(NULL);
2154
            if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
Lukasz Marek's avatar
Lukasz Marek committed
2155 2156 2157
                printf("Error '%s'\n", options[i]);
            else
                printf("OK    '%s'\n", options[i]);
2158
            av_log_set_callback(log_callback_help);
2159
        }
2160
        av_opt_free(&test_ctx);
2161 2162
    }

2163 2164 2165
    printf("\nTesting av_opt_set_from_string()\n");
    {
        TestContext test_ctx = { 0 };
2166
        static const char * const options[] = {
2167 2168 2169 2170 2171 2172 2173 2174 2175 2176
            "",
            "5",
            "5:hello",
            "5:hello:size=pal",
            "5:size=pal:hello",
            ":",
            "=",
            " 5 : hello : size = pal ",
            "a_very_long_option_name_that_will_need_to_be_ellipsized_around_here=42"
        };
2177
        static const char * const shorthand[] = { "num", "string", NULL };
2178 2179 2180 2181

        test_ctx.class = &test_class;
        av_opt_set_defaults(&test_ctx);

Lukasz Marek's avatar
Lukasz Marek committed
2182
        av_log_set_level(AV_LOG_QUIET);
2183 2184 2185 2186

        for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
            av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
            if (av_opt_set_from_string(&test_ctx, options[i], shorthand, "=", ":") < 0)
Lukasz Marek's avatar
Lukasz Marek committed
2187 2188 2189
                printf("Error '%s'\n", options[i]);
            else
                printf("OK    '%s'\n", options[i]);
2190
        }
2191
        av_opt_free(&test_ctx);
2192 2193
    }

2194 2195 2196 2197
    return 0;
}

#endif