3 * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 * @author Michael Niedermayer <michaelni@gmx.at>
31 #include "channel_layout.h"
36 #include "parseutils.h"
38 #include "mathematics.h"
40 #include "samplefmt.h"
45 const AVOption *av_opt_next(const void *obj, const AVOption *last)
50 class = *(const AVClass**)obj;
51 if (!last && class && class->option && class->option[0].name)
53 if (last && last[1].name)
58 static int read_number(const AVOption *o, const void *dst, double *num, int *den, int64_t *intnum)
61 case AV_OPT_TYPE_FLAGS:
62 *intnum = *(unsigned int*)dst;
64 case AV_OPT_TYPE_PIXEL_FMT:
65 *intnum = *(enum AVPixelFormat *)dst;
67 case AV_OPT_TYPE_SAMPLE_FMT:
68 *intnum = *(enum AVSampleFormat *)dst;
70 case AV_OPT_TYPE_BOOL:
72 *intnum = *(int *)dst;
74 case AV_OPT_TYPE_CHANNEL_LAYOUT:
75 case AV_OPT_TYPE_DURATION:
76 case AV_OPT_TYPE_INT64:
77 *intnum = *(int64_t *)dst;
79 case AV_OPT_TYPE_FLOAT:
82 case AV_OPT_TYPE_DOUBLE:
83 *num = *(double *)dst;
85 case AV_OPT_TYPE_RATIONAL:
86 *intnum = ((AVRational *)dst)->num;
87 *den = ((AVRational *)dst)->den;
89 case AV_OPT_TYPE_CONST:
90 *num = o->default_val.dbl;
93 return AVERROR(EINVAL);
96 static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
98 if (o->type != AV_OPT_TYPE_FLAGS &&
99 (o->max * den < num * intnum || o->min * den > num * intnum)) {
100 num = den ? num * intnum / den : (num * intnum ? INFINITY : NAN);
101 av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
102 num, o->name, o->min, o->max);
103 return AVERROR(ERANGE);
105 if (o->type == AV_OPT_TYPE_FLAGS) {
106 double d = num*intnum/den;
107 if (d < -1.5 || d > 0xFFFFFFFF+0.5 || (llrint(d*256) & 255)) {
108 av_log(obj, AV_LOG_ERROR,
109 "Value %f for parameter '%s' is not a valid set of 32bit integer flags\n",
110 num*intnum/den, o->name);
111 return AVERROR(ERANGE);
116 case AV_OPT_TYPE_PIXEL_FMT:
117 *(enum AVPixelFormat *)dst = llrint(num / den) * intnum;
119 case AV_OPT_TYPE_SAMPLE_FMT:
120 *(enum AVSampleFormat *)dst = llrint(num / den) * intnum;
122 case AV_OPT_TYPE_BOOL:
123 case AV_OPT_TYPE_FLAGS:
124 case AV_OPT_TYPE_INT:
125 *(int *)dst = llrint(num / den) * intnum;
127 case AV_OPT_TYPE_DURATION:
128 case AV_OPT_TYPE_CHANNEL_LAYOUT:
129 case AV_OPT_TYPE_INT64:
130 *(int64_t *)dst = llrint(num / den) * intnum;
132 case AV_OPT_TYPE_FLOAT:
133 *(float *)dst = num * intnum / den;
135 case AV_OPT_TYPE_DOUBLE:
136 *(double *)dst = num * intnum / den;
138 case AV_OPT_TYPE_RATIONAL:
139 if ((int) num == num)
140 *(AVRational *)dst = (AVRational) { num *intnum, den };
142 *(AVRational *)dst = av_d2q(num * intnum / den, 1 << 24);
145 return AVERROR(EINVAL);
150 static int hexchar2int(char c) {
151 if (c >= '0' && c <= '9')
153 if (c >= 'a' && c <= 'f')
155 if (c >= 'A' && c <= 'F')
160 static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
162 int *lendst = (int *)(dst + 1);
169 if (!val || !(len = strlen(val)))
173 return AVERROR(EINVAL);
176 ptr = bin = av_malloc(len);
178 return AVERROR(ENOMEM);
180 int a = hexchar2int(*val++);
181 int b = hexchar2int(*val++);
182 if (a < 0 || b < 0) {
184 return AVERROR(EINVAL);
186 *ptr++ = (a << 4) | b;
194 static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
197 *dst = av_strdup(val);
198 return *dst ? 0 : AVERROR(ENOMEM);
201 #define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
202 opt->type == AV_OPT_TYPE_CONST || \
203 opt->type == AV_OPT_TYPE_FLAGS || \
204 opt->type == AV_OPT_TYPE_INT) \
205 ? opt->default_val.i64 \
206 : opt->default_val.dbl)
208 static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
214 if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) {
215 if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0)
227 if (o->type == AV_OPT_TYPE_FLAGS) {
228 if (*val == '+' || *val == '-')
230 for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
236 const AVOption *o_named = av_opt_find(target_obj, i ? buf : val, o->unit, 0, 0);
239 double const_values[64];
240 const char * const_names[64];
241 if (o_named && o_named->type == AV_OPT_TYPE_CONST)
242 d = DEFAULT_NUMVAL(o_named);
245 for (o_named = NULL; o_named = av_opt_next(target_obj, o_named); ) {
246 if (o_named->type == AV_OPT_TYPE_CONST &&
248 !strcmp(o_named->unit, o->unit)) {
249 if (ci + 6 >= FF_ARRAY_ELEMS(const_values)) {
250 av_log(obj, AV_LOG_ERROR, "const_values array too small for %s\n", o->unit);
251 return AVERROR_PATCHWELCOME;
253 const_names [ci ] = o_named->name;
254 const_values[ci++] = DEFAULT_NUMVAL(o_named);
258 const_names [ci ] = "default";
259 const_values[ci++] = DEFAULT_NUMVAL(o);
260 const_names [ci ] = "max";
261 const_values[ci++] = o->max;
262 const_names [ci ] = "min";
263 const_values[ci++] = o->min;
264 const_names [ci ] = "none";
265 const_values[ci++] = 0;
266 const_names [ci ] = "all";
267 const_values[ci++] = ~0;
268 const_names [ci] = NULL;
269 const_values[ci] = 0;
271 res = av_expr_parse_and_eval(&d, i ? buf : val, const_names,
272 const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
274 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
279 if (o->type == AV_OPT_TYPE_FLAGS) {
280 read_number(o, dst, NULL, NULL, &intnum);
282 d = intnum | (int64_t)d;
284 d = intnum &~(int64_t)d;
287 if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
297 static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst)
301 if (!val || !strcmp(val, "none")) {
306 ret = av_parse_video_size(dst, dst + 1, val);
308 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
312 static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst)
316 ret = AVERROR(EINVAL);
318 ret = av_parse_video_rate(dst, val);
321 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
325 static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst)
332 ret = av_parse_color(dst, val, -1, obj);
334 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val);
340 static const char *get_bool_name(int val)
344 return val ? "true" : "false";
347 static int set_string_bool(void *obj, const AVOption *o, const char *val, int *dst)
354 if (!strcmp(val, "auto")) {
356 } else if (av_match_name(val, "true,y,yes,enable,enabled,on")) {
358 } else if (av_match_name(val, "false,n,no,disable,disabled,off")) {
362 n = strtol(val, &end, 10);
363 if (val + strlen(val) != end)
367 if (n < o->min || n > o->max)
374 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as boolean\n", val);
375 return AVERROR(EINVAL);
378 static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst,
379 int fmt_nb, int ((*get_fmt)(const char *)), const char *desc)
383 if (!val || !strcmp(val, "none")) {
389 fmt = strtol(val, &tail, 0);
390 if (*tail || (unsigned)fmt >= fmt_nb) {
391 av_log(obj, AV_LOG_ERROR,
392 "Unable to parse option value \"%s\" as %s\n", val, desc);
393 return AVERROR(EINVAL);
398 min = FFMAX(o->min, -1);
399 max = FFMIN(o->max, fmt_nb-1);
401 // hack for compatibility with old ffmpeg
402 if(min == 0 && max == 0) {
407 if (fmt < min || fmt > max) {
408 av_log(obj, AV_LOG_ERROR,
409 "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
410 fmt, o->name, desc, min, max);
411 return AVERROR(ERANGE);
418 static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
420 return set_string_fmt(obj, o, val, dst,
421 AV_PIX_FMT_NB, av_get_pix_fmt, "pixel format");
424 static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
426 return set_string_fmt(obj, o, val, dst,
427 AV_SAMPLE_FMT_NB, av_get_sample_fmt, "sample format");
430 int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
433 void *dst, *target_obj;
434 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
435 if (!o || !target_obj)
436 return AVERROR_OPTION_NOT_FOUND;
437 if (!val && (o->type != AV_OPT_TYPE_STRING &&
438 o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
439 o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE &&
440 o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR &&
441 o->type != AV_OPT_TYPE_CHANNEL_LAYOUT && o->type != AV_OPT_TYPE_BOOL))
442 return AVERROR(EINVAL);
444 if (o->flags & AV_OPT_FLAG_READONLY)
445 return AVERROR(EINVAL);
447 dst = ((uint8_t *)target_obj) + o->offset;
449 case AV_OPT_TYPE_BOOL:
450 return set_string_bool(obj, o, val, dst);
451 case AV_OPT_TYPE_STRING:
452 return set_string(obj, o, val, dst);
453 case AV_OPT_TYPE_BINARY:
454 return set_string_binary(obj, o, val, dst);
455 case AV_OPT_TYPE_FLAGS:
456 case AV_OPT_TYPE_INT:
457 case AV_OPT_TYPE_INT64:
458 case AV_OPT_TYPE_FLOAT:
459 case AV_OPT_TYPE_DOUBLE:
460 case AV_OPT_TYPE_RATIONAL:
461 return set_string_number(obj, target_obj, o, val, dst);
462 case AV_OPT_TYPE_IMAGE_SIZE:
463 return set_string_image_size(obj, o, val, dst);
464 case AV_OPT_TYPE_VIDEO_RATE:
465 return set_string_video_rate(obj, o, val, dst);
466 case AV_OPT_TYPE_PIXEL_FMT:
467 return set_string_pixel_fmt(obj, o, val, dst);
468 case AV_OPT_TYPE_SAMPLE_FMT:
469 return set_string_sample_fmt(obj, o, val, dst);
470 case AV_OPT_TYPE_DURATION:
475 if ((ret = av_parse_time(dst, val, 1)) < 0)
476 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val);
480 case AV_OPT_TYPE_COLOR:
481 return set_string_color(obj, o, val, dst);
482 case AV_OPT_TYPE_CHANNEL_LAYOUT:
483 if (!val || !strcmp(val, "none")) {
486 int64_t cl = av_get_channel_layout(val);
488 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val);
489 ret = AVERROR(EINVAL);
491 *(int64_t *)dst = cl;
497 av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
498 return AVERROR(EINVAL);
501 #define OPT_EVAL_NUMBER(name, opttype, vartype) \
502 int av_opt_eval_ ## name(void *obj, const AVOption *o, \
503 const char *val, vartype *name ## _out) \
505 if (!o || o->type != opttype || o->flags & AV_OPT_FLAG_READONLY) \
506 return AVERROR(EINVAL); \
507 return set_string_number(obj, obj, o, val, name ## _out); \
510 OPT_EVAL_NUMBER(flags, AV_OPT_TYPE_FLAGS, int)
511 OPT_EVAL_NUMBER(int, AV_OPT_TYPE_INT, int)
512 OPT_EVAL_NUMBER(int64, AV_OPT_TYPE_INT64, int64_t)
513 OPT_EVAL_NUMBER(float, AV_OPT_TYPE_FLOAT, float)
514 OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE, double)
515 OPT_EVAL_NUMBER(q, AV_OPT_TYPE_RATIONAL, AVRational)
517 static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
520 void *dst, *target_obj;
521 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
523 if (!o || !target_obj)
524 return AVERROR_OPTION_NOT_FOUND;
526 if (o->flags & AV_OPT_FLAG_READONLY)
527 return AVERROR(EINVAL);
529 dst = ((uint8_t *)target_obj) + o->offset;
530 return write_number(obj, o, dst, num, den, intnum);
533 int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
535 return set_number(obj, name, 1, 1, val, search_flags);
538 int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
540 return set_number(obj, name, val, 1, 1, search_flags);
543 int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
545 return set_number(obj, name, val.num, val.den, 1, search_flags);
548 int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
551 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
556 if (!o || !target_obj)
557 return AVERROR_OPTION_NOT_FOUND;
559 if (o->type != AV_OPT_TYPE_BINARY || o->flags & AV_OPT_FLAG_READONLY)
560 return AVERROR(EINVAL);
562 ptr = len ? av_malloc(len) : NULL;
564 return AVERROR(ENOMEM);
566 dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
567 lendst = (int *)(dst + 1);
573 memcpy(ptr, val, len);
578 int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
581 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
583 if (!o || !target_obj)
584 return AVERROR_OPTION_NOT_FOUND;
585 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
586 av_log(obj, AV_LOG_ERROR,
587 "The value set by option '%s' is not an image size.\n", o->name);
588 return AVERROR(EINVAL);
591 av_log(obj, AV_LOG_ERROR,
592 "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
593 return AVERROR(EINVAL);
595 *(int *)(((uint8_t *)target_obj) + o->offset) = w;
596 *(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h;
600 int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
603 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
605 if (!o || !target_obj)
606 return AVERROR_OPTION_NOT_FOUND;
607 if (o->type != AV_OPT_TYPE_VIDEO_RATE) {
608 av_log(obj, AV_LOG_ERROR,
609 "The value set by option '%s' is not a video rate.\n", o->name);
610 return AVERROR(EINVAL);
612 if (val.num <= 0 || val.den <= 0)
613 return AVERROR(EINVAL);
614 return set_number(obj, name, val.num, val.den, 1, search_flags);
617 static int set_format(void *obj, const char *name, int fmt, int search_flags,
618 enum AVOptionType type, const char *desc, int nb_fmts)
621 const AVOption *o = av_opt_find2(obj, name, NULL, 0,
622 search_flags, &target_obj);
625 if (!o || !target_obj)
626 return AVERROR_OPTION_NOT_FOUND;
627 if (o->type != type) {
628 av_log(obj, AV_LOG_ERROR,
629 "The value set by option '%s' is not a %s format", name, desc);
630 return AVERROR(EINVAL);
633 min = FFMAX(o->min, -1);
634 max = FFMIN(o->max, nb_fmts-1);
636 if (fmt < min || fmt > max) {
637 av_log(obj, AV_LOG_ERROR,
638 "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
639 fmt, name, desc, min, max);
640 return AVERROR(ERANGE);
642 *(int *)(((uint8_t *)target_obj) + o->offset) = fmt;
646 int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
648 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
651 int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
653 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
656 int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, int search_flags)
659 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
661 if (!o || !target_obj)
662 return AVERROR_OPTION_NOT_FOUND;
663 if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
664 av_log(obj, AV_LOG_ERROR,
665 "The value set by option '%s' is not a channel layout.\n", o->name);
666 return AVERROR(EINVAL);
668 *(int64_t *)(((uint8_t *)target_obj) + o->offset) = cl;
672 int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val,
677 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
679 if (!o || !target_obj)
680 return AVERROR_OPTION_NOT_FOUND;
681 if (o->flags & AV_OPT_FLAG_READONLY)
682 return AVERROR(EINVAL);
684 dst = (AVDictionary **)(((uint8_t *)target_obj) + o->offset);
686 av_dict_copy(dst, val, 0);
691 static void format_duration(char *buf, size_t size, int64_t d)
695 av_assert0(size >= 25);
696 if (d < 0 && d != INT64_MIN) {
702 snprintf(buf, size, "INT64_MAX");
703 else if (d == INT64_MIN)
704 snprintf(buf, size, "INT64_MIN");
705 else if (d > (int64_t)3600*1000000)
706 snprintf(buf, size, "%"PRId64":%02d:%02d.%06d", d / 3600000000,
707 (int)((d / 60000000) % 60),
708 (int)((d / 1000000) % 60),
710 else if (d > 60*1000000)
711 snprintf(buf, size, "%d:%02d.%06d",
713 (int)((d / 1000000) % 60),
716 snprintf(buf, size, "%d.%06d",
719 e = buf + strlen(buf);
720 while (e > buf && e[-1] == '0')
722 if (e > buf && e[-1] == '.')
726 int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
728 void *dst, *target_obj;
729 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
730 uint8_t *bin, buf[128];
734 if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
735 return AVERROR_OPTION_NOT_FOUND;
737 dst = (uint8_t *)target_obj + o->offset;
741 case AV_OPT_TYPE_BOOL:
742 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(get_bool_name(*(int *)dst), "invalid"));
744 case AV_OPT_TYPE_FLAGS:
745 ret = snprintf(buf, sizeof(buf), "0x%08X", *(int *)dst);
747 case AV_OPT_TYPE_INT:
748 ret = snprintf(buf, sizeof(buf), "%d", *(int *)dst);
750 case AV_OPT_TYPE_INT64:
751 ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t *)dst);
753 case AV_OPT_TYPE_FLOAT:
754 ret = snprintf(buf, sizeof(buf), "%f", *(float *)dst);
756 case AV_OPT_TYPE_DOUBLE:
757 ret = snprintf(buf, sizeof(buf), "%f", *(double *)dst);
759 case AV_OPT_TYPE_VIDEO_RATE:
760 case AV_OPT_TYPE_RATIONAL:
761 ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational *)dst)->num, ((AVRational *)dst)->den);
763 case AV_OPT_TYPE_CONST:
764 ret = snprintf(buf, sizeof(buf), "%f", o->default_val.dbl);
766 case AV_OPT_TYPE_STRING:
767 if (*(uint8_t **)dst) {
768 *out_val = av_strdup(*(uint8_t **)dst);
769 } else if (search_flags & AV_OPT_ALLOW_NULL) {
773 *out_val = av_strdup("");
775 return *out_val ? 0 : AVERROR(ENOMEM);
776 case AV_OPT_TYPE_BINARY:
777 if (!*(uint8_t **)dst && (search_flags & AV_OPT_ALLOW_NULL)) {
781 len = *(int *)(((uint8_t *)dst) + sizeof(uint8_t *));
782 if ((uint64_t)len * 2 + 1 > INT_MAX)
783 return AVERROR(EINVAL);
784 if (!(*out_val = av_malloc(len * 2 + 1)))
785 return AVERROR(ENOMEM);
790 bin = *(uint8_t **)dst;
791 for (i = 0; i < len; i++)
792 snprintf(*out_val + i * 2, 3, "%02X", bin[i]);
794 case AV_OPT_TYPE_IMAGE_SIZE:
795 ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
797 case AV_OPT_TYPE_PIXEL_FMT:
798 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
800 case AV_OPT_TYPE_SAMPLE_FMT:
801 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
803 case AV_OPT_TYPE_DURATION:
804 i64 = *(int64_t *)dst;
805 format_duration(buf, sizeof(buf), i64);
806 ret = strlen(buf); // no overflow possible, checked by an assert
808 case AV_OPT_TYPE_COLOR:
809 ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x",
810 (int)((uint8_t *)dst)[0], (int)((uint8_t *)dst)[1],
811 (int)((uint8_t *)dst)[2], (int)((uint8_t *)dst)[3]);
813 case AV_OPT_TYPE_CHANNEL_LAYOUT:
814 i64 = *(int64_t *)dst;
815 ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64);
818 return AVERROR(EINVAL);
821 if (ret >= sizeof(buf))
822 return AVERROR(EINVAL);
823 *out_val = av_strdup(buf);
824 return *out_val ? 0 : AVERROR(ENOMEM);
827 static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum,
830 void *dst, *target_obj;
831 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
832 if (!o || !target_obj)
835 dst = ((uint8_t *)target_obj) + o->offset;
837 if (o_out) *o_out= o;
839 return read_number(o, dst, num, den, intnum);
847 int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
853 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
855 *out_val = num * intnum / den;
859 int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
865 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
867 *out_val = num * intnum / den;
871 int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
877 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
880 if (num == 1.0 && (int)intnum == intnum)
881 *out_val = (AVRational){intnum, den};
883 *out_val = av_d2q(num*intnum/den, 1<<24);
887 int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
889 void *dst, *target_obj;
890 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
891 if (!o || !target_obj)
892 return AVERROR_OPTION_NOT_FOUND;
893 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
894 av_log(obj, AV_LOG_ERROR,
895 "The value for option '%s' is not an image size.\n", name);
896 return AVERROR(EINVAL);
899 dst = ((uint8_t*)target_obj) + o->offset;
900 if (w_out) *w_out = *(int *)dst;
901 if (h_out) *h_out = *((int *)dst+1);
905 int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
911 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
914 if (num == 1.0 && (int)intnum == intnum)
915 *out_val = (AVRational) { intnum, den };
917 *out_val = av_d2q(num * intnum / den, 1 << 24);
921 static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
922 enum AVOptionType type, const char *desc)
924 void *dst, *target_obj;
925 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
926 if (!o || !target_obj)
927 return AVERROR_OPTION_NOT_FOUND;
928 if (o->type != type) {
929 av_log(obj, AV_LOG_ERROR,
930 "The value for option '%s' is not a %s format.\n", desc, name);
931 return AVERROR(EINVAL);
934 dst = ((uint8_t*)target_obj) + o->offset;
935 *out_fmt = *(int *)dst;
939 int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
941 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
944 int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
946 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
949 int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl)
951 void *dst, *target_obj;
952 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
953 if (!o || !target_obj)
954 return AVERROR_OPTION_NOT_FOUND;
955 if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
956 av_log(obj, AV_LOG_ERROR,
957 "The value for option '%s' is not a channel layout.\n", name);
958 return AVERROR(EINVAL);
961 dst = ((uint8_t*)target_obj) + o->offset;
962 *cl = *(int64_t *)dst;
966 int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val)
970 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
972 if (!o || !target_obj)
973 return AVERROR_OPTION_NOT_FOUND;
974 if (o->type != AV_OPT_TYPE_DICT)
975 return AVERROR(EINVAL);
977 src = *(AVDictionary **)(((uint8_t *)target_obj) + o->offset);
978 av_dict_copy(out_val, src, 0);
983 int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
985 const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
986 const AVOption *flag = av_opt_find(obj, flag_name,
987 field ? field->unit : NULL, 0, 0);
990 if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
991 av_opt_get_int(obj, field_name, 0, &res) < 0)
993 return res & flag->default_val.i64;
996 static void log_value(void *av_log_obj, int level, double d)
999 av_log(av_log_obj, level, "INT_MAX");
1000 } else if (d == INT_MIN) {
1001 av_log(av_log_obj, level, "INT_MIN");
1002 } else if (d == UINT32_MAX) {
1003 av_log(av_log_obj, level, "UINT32_MAX");
1004 } else if (d == (double)INT64_MAX) {
1005 av_log(av_log_obj, level, "I64_MAX");
1006 } else if (d == INT64_MIN) {
1007 av_log(av_log_obj, level, "I64_MIN");
1008 } else if (d == FLT_MAX) {
1009 av_log(av_log_obj, level, "FLT_MAX");
1010 } else if (d == FLT_MIN) {
1011 av_log(av_log_obj, level, "FLT_MIN");
1012 } else if (d == -FLT_MAX) {
1013 av_log(av_log_obj, level, "-FLT_MAX");
1014 } else if (d == -FLT_MIN) {
1015 av_log(av_log_obj, level, "-FLT_MIN");
1016 } else if (d == DBL_MAX) {
1017 av_log(av_log_obj, level, "DBL_MAX");
1018 } else if (d == DBL_MIN) {
1019 av_log(av_log_obj, level, "DBL_MIN");
1020 } else if (d == -DBL_MAX) {
1021 av_log(av_log_obj, level, "-DBL_MAX");
1022 } else if (d == -DBL_MIN) {
1023 av_log(av_log_obj, level, "-DBL_MIN");
1025 av_log(av_log_obj, level, "%g", d);
1029 static const char *get_opt_const_name(void *obj, const char *unit, int64_t value)
1031 const AVOption *opt = NULL;
1035 while ((opt = av_opt_next(obj, opt)))
1036 if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) &&
1037 opt->default_val.i64 == value)
1042 static char *get_opt_flags_string(void *obj, const char *unit, int64_t value)
1044 const AVOption *opt = NULL;
1050 while ((opt = av_opt_next(obj, opt))) {
1051 if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) &&
1052 opt->default_val.i64 & value) {
1054 av_strlcatf(flags, sizeof(flags), "+");
1055 av_strlcatf(flags, sizeof(flags), "%s", opt->name);
1059 return av_strdup(flags);
1063 static void opt_list(void *obj, void *av_log_obj, const char *unit,
1064 int req_flags, int rej_flags)
1066 const AVOption *opt = NULL;
1070 while ((opt = av_opt_next(obj, opt))) {
1071 if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
1074 /* Don't print CONST's on level one.
1075 * Don't print anything but CONST's on level two.
1076 * Only print items from the requested unit.
1078 if (!unit && opt->type == AV_OPT_TYPE_CONST)
1080 else if (unit && opt->type != AV_OPT_TYPE_CONST)
1082 else if (unit && opt->type == AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
1084 else if (unit && opt->type == AV_OPT_TYPE_CONST)
1085 av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name);
1087 av_log(av_log_obj, AV_LOG_INFO, " %s%-17s ",
1088 (opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-",
1091 switch (opt->type) {
1092 case AV_OPT_TYPE_FLAGS:
1093 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>");
1095 case AV_OPT_TYPE_INT:
1096 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>");
1098 case AV_OPT_TYPE_INT64:
1099 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>");
1101 case AV_OPT_TYPE_DOUBLE:
1102 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>");
1104 case AV_OPT_TYPE_FLOAT:
1105 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>");
1107 case AV_OPT_TYPE_STRING:
1108 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>");
1110 case AV_OPT_TYPE_RATIONAL:
1111 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>");
1113 case AV_OPT_TYPE_BINARY:
1114 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>");
1116 case AV_OPT_TYPE_IMAGE_SIZE:
1117 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
1119 case AV_OPT_TYPE_VIDEO_RATE:
1120 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
1122 case AV_OPT_TYPE_PIXEL_FMT:
1123 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
1125 case AV_OPT_TYPE_SAMPLE_FMT:
1126 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>");
1128 case AV_OPT_TYPE_DURATION:
1129 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>");
1131 case AV_OPT_TYPE_COLOR:
1132 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>");
1134 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1135 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>");
1137 case AV_OPT_TYPE_BOOL:
1138 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<boolean>");
1140 case AV_OPT_TYPE_CONST:
1142 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
1145 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
1146 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
1147 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_FILTERING_PARAM)? 'F' : '.');
1148 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.');
1149 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
1150 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
1151 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_EXPORT) ? 'X' : '.');
1152 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_READONLY) ? 'R' : '.');
1155 av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
1157 if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) {
1158 switch (opt->type) {
1159 case AV_OPT_TYPE_INT:
1160 case AV_OPT_TYPE_INT64:
1161 case AV_OPT_TYPE_DOUBLE:
1162 case AV_OPT_TYPE_FLOAT:
1163 case AV_OPT_TYPE_RATIONAL:
1164 for (i = 0; i < r->nb_ranges; i++) {
1165 av_log(av_log_obj, AV_LOG_INFO, " (from ");
1166 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
1167 av_log(av_log_obj, AV_LOG_INFO, " to ");
1168 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
1169 av_log(av_log_obj, AV_LOG_INFO, ")");
1173 av_opt_freep_ranges(&r);
1176 if (opt->type != AV_OPT_TYPE_CONST &&
1177 opt->type != AV_OPT_TYPE_BINARY &&
1178 !((opt->type == AV_OPT_TYPE_COLOR ||
1179 opt->type == AV_OPT_TYPE_IMAGE_SIZE ||
1180 opt->type == AV_OPT_TYPE_STRING ||
1181 opt->type == AV_OPT_TYPE_VIDEO_RATE) &&
1182 !opt->default_val.str)) {
1183 av_log(av_log_obj, AV_LOG_INFO, " (default ");
1184 switch (opt->type) {
1185 case AV_OPT_TYPE_BOOL:
1186 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(get_bool_name(opt->default_val.i64), "invalid"));
1188 case AV_OPT_TYPE_FLAGS: {
1189 char *def_flags = get_opt_flags_string(obj, opt->unit, opt->default_val.i64);
1191 av_log(av_log_obj, AV_LOG_INFO, "%s", def_flags);
1192 av_freep(&def_flags);
1194 av_log(av_log_obj, AV_LOG_INFO, "%"PRIX64, opt->default_val.i64);
1198 case AV_OPT_TYPE_DURATION: {
1200 format_duration(buf, sizeof(buf), opt->default_val.i64);
1201 av_log(av_log_obj, AV_LOG_INFO, "%s", buf);
1204 case AV_OPT_TYPE_INT:
1205 case AV_OPT_TYPE_INT64: {
1206 const char *def_const = get_opt_const_name(obj, opt->unit, opt->default_val.i64);
1208 av_log(av_log_obj, AV_LOG_INFO, "%s", def_const);
1210 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.i64);
1213 case AV_OPT_TYPE_DOUBLE:
1214 case AV_OPT_TYPE_FLOAT:
1215 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.dbl);
1217 case AV_OPT_TYPE_RATIONAL: {
1218 AVRational q = av_d2q(opt->default_val.dbl, INT_MAX);
1219 av_log(av_log_obj, AV_LOG_INFO, "%d/%d", q.num, q.den); }
1221 case AV_OPT_TYPE_PIXEL_FMT:
1222 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(opt->default_val.i64), "none"));
1224 case AV_OPT_TYPE_SAMPLE_FMT:
1225 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(opt->default_val.i64), "none"));
1227 case AV_OPT_TYPE_COLOR:
1228 case AV_OPT_TYPE_IMAGE_SIZE:
1229 case AV_OPT_TYPE_STRING:
1230 case AV_OPT_TYPE_VIDEO_RATE:
1231 av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str);
1233 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1234 av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64);
1237 av_log(av_log_obj, AV_LOG_INFO, ")");
1240 av_log(av_log_obj, AV_LOG_INFO, "\n");
1241 if (opt->unit && opt->type != AV_OPT_TYPE_CONST)
1242 opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
1246 int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
1251 av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass **)obj)->class_name);
1253 opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
1258 void av_opt_set_defaults(void *s)
1260 av_opt_set_defaults2(s, 0, 0);
1263 void av_opt_set_defaults2(void *s, int mask, int flags)
1265 const AVOption *opt = NULL;
1266 while ((opt = av_opt_next(s, opt))) {
1267 void *dst = ((uint8_t*)s) + opt->offset;
1269 if ((opt->flags & mask) != flags)
1272 if (opt->flags & AV_OPT_FLAG_READONLY)
1275 switch (opt->type) {
1276 case AV_OPT_TYPE_CONST:
1277 /* Nothing to be done here */
1279 case AV_OPT_TYPE_BOOL:
1280 case AV_OPT_TYPE_FLAGS:
1281 case AV_OPT_TYPE_INT:
1282 case AV_OPT_TYPE_INT64:
1283 case AV_OPT_TYPE_DURATION:
1284 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1285 case AV_OPT_TYPE_PIXEL_FMT:
1286 case AV_OPT_TYPE_SAMPLE_FMT:
1287 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1289 case AV_OPT_TYPE_DOUBLE:
1290 case AV_OPT_TYPE_FLOAT: {
1292 val = opt->default_val.dbl;
1293 write_number(s, opt, dst, val, 1, 1);
1296 case AV_OPT_TYPE_RATIONAL: {
1298 val = av_d2q(opt->default_val.dbl, INT_MAX);
1299 write_number(s, opt, dst, 1, val.den, val.num);
1302 case AV_OPT_TYPE_COLOR:
1303 set_string_color(s, opt, opt->default_val.str, dst);
1305 case AV_OPT_TYPE_STRING:
1306 set_string(s, opt, opt->default_val.str, dst);
1308 case AV_OPT_TYPE_IMAGE_SIZE:
1309 set_string_image_size(s, opt, opt->default_val.str, dst);
1311 case AV_OPT_TYPE_VIDEO_RATE:
1312 set_string_video_rate(s, opt, opt->default_val.str, dst);
1314 case AV_OPT_TYPE_BINARY:
1315 set_string_binary(s, opt, opt->default_val.str, dst);
1317 case AV_OPT_TYPE_DICT:
1318 /* Cannot set defaults for these types */
1321 av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n",
1322 opt->type, opt->name);
1328 * Store the value in the field in ctx that is named like key.
1329 * ctx must be an AVClass context, storing is done using AVOptions.
1331 * @param buf the string to parse, buf will be updated to point at the
1332 * separator just after the parsed key/value pair
1333 * @param key_val_sep a 0-terminated list of characters used to
1334 * separate key from value
1335 * @param pairs_sep a 0-terminated list of characters used to separate
1336 * two pairs from each other
1337 * @return 0 if the key/value pair has been successfully parsed and
1338 * set, or a negative value corresponding to an AVERROR code in case
1340 * AVERROR(EINVAL) if the key/value pair cannot be parsed,
1341 * the error code issued by av_opt_set() if the key/value pair
1344 static int parse_key_value_pair(void *ctx, const char **buf,
1345 const char *key_val_sep, const char *pairs_sep)
1347 char *key = av_get_token(buf, key_val_sep);
1352 return AVERROR(ENOMEM);
1354 if (*key && strspn(*buf, key_val_sep)) {
1356 val = av_get_token(buf, pairs_sep);
1359 return AVERROR(ENOMEM);
1362 av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
1364 return AVERROR(EINVAL);
1367 av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val);
1369 ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN);
1370 if (ret == AVERROR_OPTION_NOT_FOUND)
1371 av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
1378 int av_set_options_string(void *ctx, const char *opts,
1379 const char *key_val_sep, const char *pairs_sep)
1387 if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
1398 #define WHITESPACES " \n\t"
1400 static int is_key_char(char c)
1402 return (unsigned)((c | 32) - 'a') < 26 ||
1403 (unsigned)(c - '0') < 10 ||
1404 c == '-' || c == '_' || c == '/' || c == '.';
1408 * Read a key from a string.
1410 * The key consists of is_key_char characters and must be terminated by a
1411 * character from the delim string; spaces are ignored.
1413 * @return 0 for success (even with ellipsis), <0 for failure
1415 static int get_key(const char **ropts, const char *delim, char **rkey)
1417 const char *opts = *ropts;
1418 const char *key_start, *key_end;
1420 key_start = opts += strspn(opts, WHITESPACES);
1421 while (is_key_char(*opts))
1424 opts += strspn(opts, WHITESPACES);
1425 if (!*opts || !strchr(delim, *opts))
1426 return AVERROR(EINVAL);
1428 if (!(*rkey = av_malloc(key_end - key_start + 1)))
1429 return AVERROR(ENOMEM);
1430 memcpy(*rkey, key_start, key_end - key_start);
1431 (*rkey)[key_end - key_start] = 0;
1436 int av_opt_get_key_value(const char **ropts,
1437 const char *key_val_sep, const char *pairs_sep,
1439 char **rkey, char **rval)
1442 char *key = NULL, *val;
1443 const char *opts = *ropts;
1445 if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
1446 !(flags & AV_OPT_FLAG_IMPLICIT_KEY))
1447 return AVERROR(EINVAL);
1448 if (!(val = av_get_token(&opts, pairs_sep))) {
1450 return AVERROR(ENOMEM);
1458 int av_opt_set_from_string(void *ctx, const char *opts,
1459 const char *const *shorthand,
1460 const char *key_val_sep, const char *pairs_sep)
1463 const char *dummy_shorthand = NULL;
1464 char *av_uninit(parsed_key), *av_uninit(value);
1470 shorthand = &dummy_shorthand;
1473 ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
1474 *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
1475 &parsed_key, &value);
1477 if (ret == AVERROR(EINVAL))
1478 av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts);
1480 av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts,
1488 while (*shorthand) /* discard all remaining shorthand */
1491 key = *(shorthand++);
1494 av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
1495 if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
1496 if (ret == AVERROR_OPTION_NOT_FOUND)
1497 av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
1499 av_free(parsed_key);
1504 av_free(parsed_key);
1510 void av_opt_free(void *obj)
1512 const AVOption *o = NULL;
1513 while ((o = av_opt_next(obj, o))) {
1515 case AV_OPT_TYPE_STRING:
1516 case AV_OPT_TYPE_BINARY:
1517 av_freep((uint8_t *)obj + o->offset);
1520 case AV_OPT_TYPE_DICT:
1521 av_dict_free((AVDictionary **)(((uint8_t *)obj) + o->offset));
1530 int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags)
1532 AVDictionaryEntry *t = NULL;
1533 AVDictionary *tmp = NULL;
1539 while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
1540 ret = av_opt_set(obj, t->key, t->value, search_flags);
1541 if (ret == AVERROR_OPTION_NOT_FOUND)
1542 ret = av_dict_set(&tmp, t->key, t->value, 0);
1544 av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
1550 av_dict_free(options);
1555 int av_opt_set_dict(void *obj, AVDictionary **options)
1557 return av_opt_set_dict2(obj, options, 0);
1560 const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
1561 int opt_flags, int search_flags)
1563 return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
1566 const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
1567 int opt_flags, int search_flags, void **target_obj)
1570 const AVOption *o = NULL;
1580 if (search_flags & AV_OPT_SEARCH_CHILDREN) {
1581 if (search_flags & AV_OPT_SEARCH_FAKE_OBJ) {
1582 const AVClass *child = NULL;
1583 while (child = av_opt_child_class_next(c, child))
1584 if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL))
1588 while (child = av_opt_child_next(obj, child))
1589 if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
1594 while (o = av_opt_next(obj, o)) {
1595 if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
1596 ((!unit && o->type != AV_OPT_TYPE_CONST) ||
1597 (unit && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) {
1599 if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ))
1610 void *av_opt_child_next(void *obj, void *prev)
1612 const AVClass *c = *(AVClass **)obj;
1614 return c->child_next(obj, prev);
1618 const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
1620 if (parent->child_class_next)
1621 return parent->child_class_next(prev);
1625 void *av_opt_ptr(const AVClass *class, void *obj, const char *name)
1627 const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL);
1630 return (uint8_t*)obj + opt->offset;
1633 static int opt_size(enum AVOptionType type)
1636 case AV_OPT_TYPE_BOOL:
1637 case AV_OPT_TYPE_INT:
1638 case AV_OPT_TYPE_FLAGS:
1640 case AV_OPT_TYPE_DURATION:
1641 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1642 case AV_OPT_TYPE_INT64:
1643 return sizeof(int64_t);
1644 case AV_OPT_TYPE_DOUBLE:
1645 return sizeof(double);
1646 case AV_OPT_TYPE_FLOAT:
1647 return sizeof(float);
1648 case AV_OPT_TYPE_STRING:
1649 return sizeof(uint8_t*);
1650 case AV_OPT_TYPE_VIDEO_RATE:
1651 case AV_OPT_TYPE_RATIONAL:
1652 return sizeof(AVRational);
1653 case AV_OPT_TYPE_BINARY:
1654 return sizeof(uint8_t*) + sizeof(int);
1655 case AV_OPT_TYPE_IMAGE_SIZE:
1656 return sizeof(int[2]);
1657 case AV_OPT_TYPE_PIXEL_FMT:
1658 return sizeof(enum AVPixelFormat);
1659 case AV_OPT_TYPE_SAMPLE_FMT:
1660 return sizeof(enum AVSampleFormat);
1661 case AV_OPT_TYPE_COLOR:
1664 return AVERROR(EINVAL);
1667 int av_opt_copy(void *dst, const void *src)
1669 const AVOption *o = NULL;
1674 return AVERROR(EINVAL);
1676 c = *(AVClass **)src;
1677 if (!c || c != *(AVClass **)dst)
1678 return AVERROR(EINVAL);
1680 while ((o = av_opt_next(src, o))) {
1681 void *field_dst = (uint8_t *)dst + o->offset;
1682 void *field_src = (uint8_t *)src + o->offset;
1683 uint8_t **field_dst8 = (uint8_t **)field_dst;
1684 uint8_t **field_src8 = (uint8_t **)field_src;
1686 if (o->type == AV_OPT_TYPE_STRING) {
1687 if (*field_dst8 != *field_src8)
1688 av_freep(field_dst8);
1689 *field_dst8 = av_strdup(*field_src8);
1690 if (*field_src8 && !*field_dst8)
1691 ret = AVERROR(ENOMEM);
1692 } else if (o->type == AV_OPT_TYPE_BINARY) {
1693 int len = *(int *)(field_src8 + 1);
1694 if (*field_dst8 != *field_src8)
1695 av_freep(field_dst8);
1696 *field_dst8 = av_memdup(*field_src8, len);
1697 if (len && !*field_dst8) {
1698 ret = AVERROR(ENOMEM);
1701 *(int *)(field_dst8 + 1) = len;
1702 } else if (o->type == AV_OPT_TYPE_CONST) {
1704 } else if (o->type == AV_OPT_TYPE_DICT) {
1705 AVDictionary **sdict = (AVDictionary **) field_src;
1706 AVDictionary **ddict = (AVDictionary **) field_dst;
1707 if (*sdict != *ddict)
1708 av_dict_free(ddict);
1710 av_dict_copy(ddict, *sdict, 0);
1711 if (av_dict_count(*sdict) != av_dict_count(*ddict))
1712 ret = AVERROR(ENOMEM);
1714 int size = opt_size(o->type);
1718 memcpy(field_dst, field_src, size);
1724 int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1727 const AVClass *c = *(AVClass**)obj;
1728 int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL;
1730 if (c->version > (52 << 16 | 11 << 8))
1731 callback = c->query_ranges;
1734 callback = av_opt_query_ranges_default;
1736 ret = callback(ranges_arg, obj, key, flags);
1738 if (!(flags & AV_OPT_MULTI_COMPONENT_RANGE))
1740 (*ranges_arg)->nb_components = ret;
1745 int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1747 AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
1748 AVOptionRange **range_array = av_mallocz(sizeof(void*));
1749 AVOptionRange *range = av_mallocz(sizeof(*range));
1750 const AVOption *field = av_opt_find(obj, key, NULL, 0, flags);
1755 if (!ranges || !range || !range_array || !field) {
1756 ret = AVERROR(ENOMEM);
1760 ranges->range = range_array;
1761 ranges->range[0] = range;
1762 ranges->nb_ranges = 1;
1763 ranges->nb_components = 1;
1764 range->is_range = 1;
1765 range->value_min = field->min;
1766 range->value_max = field->max;
1768 switch (field->type) {
1769 case AV_OPT_TYPE_BOOL:
1770 case AV_OPT_TYPE_INT:
1771 case AV_OPT_TYPE_INT64:
1772 case AV_OPT_TYPE_PIXEL_FMT:
1773 case AV_OPT_TYPE_SAMPLE_FMT:
1774 case AV_OPT_TYPE_FLOAT:
1775 case AV_OPT_TYPE_DOUBLE:
1776 case AV_OPT_TYPE_DURATION:
1777 case AV_OPT_TYPE_COLOR:
1778 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1780 case AV_OPT_TYPE_STRING:
1781 range->component_min = 0;
1782 range->component_max = 0x10FFFF; // max unicode value
1783 range->value_min = -1;
1784 range->value_max = INT_MAX;
1786 case AV_OPT_TYPE_RATIONAL:
1787 range->component_min = INT_MIN;
1788 range->component_max = INT_MAX;
1790 case AV_OPT_TYPE_IMAGE_SIZE:
1791 range->component_min = 0;
1792 range->component_max = INT_MAX/128/8;
1793 range->value_min = 0;
1794 range->value_max = INT_MAX/8;
1796 case AV_OPT_TYPE_VIDEO_RATE:
1797 range->component_min = 1;
1798 range->component_max = INT_MAX;
1799 range->value_min = 1;
1800 range->value_max = INT_MAX;
1803 ret = AVERROR(ENOSYS);
1807 *ranges_arg = ranges;
1812 av_free(range_array);
1816 void av_opt_freep_ranges(AVOptionRanges **rangesp)
1819 AVOptionRanges *ranges = *rangesp;
1824 for (i = 0; i < ranges->nb_ranges * ranges->nb_components; i++) {
1825 AVOptionRange *range = ranges->range[i];
1827 av_freep(&range->str);
1828 av_freep(&ranges->range[i]);
1831 av_freep(&ranges->range);
1835 int av_opt_is_set_to_default(void *obj, const AVOption *o)
1846 return AVERROR(EINVAL);
1848 dst = ((uint8_t*)obj) + o->offset;
1851 case AV_OPT_TYPE_CONST:
1853 case AV_OPT_TYPE_BOOL:
1854 case AV_OPT_TYPE_FLAGS:
1855 case AV_OPT_TYPE_PIXEL_FMT:
1856 case AV_OPT_TYPE_SAMPLE_FMT:
1857 case AV_OPT_TYPE_INT:
1858 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1859 case AV_OPT_TYPE_DURATION:
1860 case AV_OPT_TYPE_INT64:
1861 read_number(o, dst, NULL, NULL, &i64);
1862 return o->default_val.i64 == i64;
1863 case AV_OPT_TYPE_STRING:
1864 str = *(char **)dst;
1865 if (str == o->default_val.str) //2 NULLs
1867 if (!str || !o->default_val.str) //1 NULL
1869 return !strcmp(str, o->default_val.str);
1870 case AV_OPT_TYPE_DOUBLE:
1871 read_number(o, dst, &d, NULL, NULL);
1872 return o->default_val.dbl == d;
1873 case AV_OPT_TYPE_FLOAT:
1874 read_number(o, dst, &d, NULL, NULL);
1875 f = o->default_val.dbl;
1878 case AV_OPT_TYPE_RATIONAL:
1879 q = av_d2q(o->default_val.dbl, INT_MAX);
1880 return !av_cmp_q(*(AVRational*)dst, q);
1881 case AV_OPT_TYPE_BINARY: {
1886 int opt_size = *(int *)((void **)dst + 1);
1887 void *opt_ptr = *(void **)dst;
1888 if (!opt_size && (!o->default_val.str || !strlen(o->default_val.str)))
1890 if (!opt_size || !o->default_val.str || !strlen(o->default_val.str ))
1892 if (opt_size != strlen(o->default_val.str) / 2)
1894 ret = set_string_binary(NULL, NULL, o->default_val.str, &tmp.data);
1896 ret = !memcmp(opt_ptr, tmp.data, tmp.size);
1900 case AV_OPT_TYPE_DICT:
1901 /* Binary and dict have not default support yet. Any pointer is not default. */
1902 return !!(*(void **)dst);
1903 case AV_OPT_TYPE_IMAGE_SIZE:
1904 if (!o->default_val.str || !strcmp(o->default_val.str, "none"))
1906 else if ((ret = av_parse_video_size(&w, &h, o->default_val.str)) < 0)
1908 return (w == *(int *)dst) && (h == *((int *)dst+1));
1909 case AV_OPT_TYPE_VIDEO_RATE:
1910 q = (AVRational){0, 0};
1911 if (o->default_val.str) {
1912 if ((ret = av_parse_video_rate(&q, o->default_val.str)) < 0)
1915 return !av_cmp_q(*(AVRational*)dst, q);
1916 case AV_OPT_TYPE_COLOR: {
1917 uint8_t color[4] = {0, 0, 0, 0};
1918 if (o->default_val.str) {
1919 if ((ret = av_parse_color(color, o->default_val.str, -1, NULL)) < 0)
1922 return !memcmp(color, dst, sizeof(color));
1925 av_log(obj, AV_LOG_WARNING, "Not supported option type: %d, option name: %s\n", o->type, o->name);
1928 return AVERROR_PATCHWELCOME;
1931 int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags)
1936 return AVERROR(EINVAL);
1937 o = av_opt_find2(obj, name, NULL, 0, search_flags, &target);
1939 return AVERROR_OPTION_NOT_FOUND;
1940 return av_opt_is_set_to_default(target, o);
1943 int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer,
1944 const char key_val_sep, const char pairs_sep)
1946 const AVOption *o = NULL;
1950 const char special_chars[] = {pairs_sep, key_val_sep, '\0'};
1952 if (pairs_sep == '\0' || key_val_sep == '\0' || pairs_sep == key_val_sep ||
1953 pairs_sep == '\\' || key_val_sep == '\\') {
1954 av_log(obj, AV_LOG_ERROR, "Invalid separator(s) found.");
1955 return AVERROR(EINVAL);
1958 if (!obj || !buffer)
1959 return AVERROR(EINVAL);
1962 av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED);
1964 while (o = av_opt_next(obj, o)) {
1965 if (o->type == AV_OPT_TYPE_CONST)
1967 if ((flags & AV_OPT_SERIALIZE_OPT_FLAGS_EXACT) && o->flags != opt_flags)
1969 else if (((o->flags & opt_flags) != opt_flags))
1971 if (flags & AV_OPT_SERIALIZE_SKIP_DEFAULTS && av_opt_is_set_to_default(obj, o) > 0)
1973 if ((ret = av_opt_get(obj, o->name, 0, &buf)) < 0) {
1974 av_bprint_finalize(&bprint, NULL);
1979 av_bprint_append_data(&bprint, &pairs_sep, 1);
1980 av_bprint_escape(&bprint, o->name, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
1981 av_bprint_append_data(&bprint, &key_val_sep, 1);
1982 av_bprint_escape(&bprint, buf, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
1986 av_bprint_finalize(&bprint, buffer);
1992 typedef struct TestContext {
1993 const AVClass *class;
1998 AVRational rational;
1999 AVRational video_rate;
2001 enum AVPixelFormat pix_fmt;
2002 enum AVSampleFormat sample_fmt;
2005 int64_t channel_layout;
2021 #define OFFSET(x) offsetof(TestContext, x)
2023 #define TEST_FLAG_COOL 01
2024 #define TEST_FLAG_LAME 02
2025 #define TEST_FLAG_MU 04
2027 static const AVOption test_options[]= {
2028 {"num", "set num", OFFSET(num), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 100, 1 },
2029 {"toggle", "set toggle", OFFSET(toggle), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, 1 },
2030 {"rational", "set rational", OFFSET(rational), AV_OPT_TYPE_RATIONAL, { .dbl = 1 }, 0, 10, 1 },
2031 {"string", "set string", OFFSET(string), AV_OPT_TYPE_STRING, { .str = "default" }, CHAR_MIN, CHAR_MAX, 1 },
2032 {"escape", "set escape str", OFFSET(escape), AV_OPT_TYPE_STRING, { .str = "\\=," }, CHAR_MIN, CHAR_MAX, 1 },
2033 {"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, { .i64 = 1 }, 0, INT_MAX, 1, "flags" },
2034 {"cool", "set cool flag", 0, AV_OPT_TYPE_CONST, { .i64 = TEST_FLAG_COOL }, INT_MIN, INT_MAX, 1, "flags" },
2035 {"lame", "set lame flag", 0, AV_OPT_TYPE_CONST, { .i64 = TEST_FLAG_LAME }, INT_MIN, INT_MAX, 1, "flags" },
2036 {"mu", "set mu flag", 0, AV_OPT_TYPE_CONST, { .i64 = TEST_FLAG_MU }, INT_MIN, INT_MAX, 1, "flags" },
2037 {"size", "set size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, { .str="200x300" }, 0, 0, 1 },
2038 {"pix_fmt", "set pixfmt", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, { .i64 = AV_PIX_FMT_0BGR }, -1, INT_MAX, 1 },
2039 {"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, { .i64 = AV_SAMPLE_FMT_S16 }, -1, INT_MAX, 1 },
2040 {"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 0, 0, 1 },
2041 {"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, { .i64 = 1000 }, 0, INT64_MAX, 1 },
2042 {"color", "set color", OFFSET(color), AV_OPT_TYPE_COLOR, { .str = "pink" }, 0, 0, 1 },
2043 {"cl", "set channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, { .i64 = AV_CH_LAYOUT_HEXAGONAL }, 0, INT64_MAX, 1 },
2044 {"bin", "set binary value", OFFSET(binary), AV_OPT_TYPE_BINARY, { .str="62696e00" }, 0, 0, 1 },
2045 {"bin1", "set binary value", OFFSET(binary1), AV_OPT_TYPE_BINARY, { .str=NULL }, 0, 0, 1 },
2046 {"bin2", "set binary value", OFFSET(binary2), AV_OPT_TYPE_BINARY, { .str="" }, 0, 0, 1 },
2047 {"num64", "set num 64bit", OFFSET(num64), AV_OPT_TYPE_INT64, { .i64 = 1 }, 0, 100, 1 },
2048 {"flt", "set float", OFFSET(flt), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 / 3 }, 0, 100, 1 },
2049 {"dbl", "set double", OFFSET(dbl), AV_OPT_TYPE_DOUBLE, { .dbl = 1.0 / 3 }, 0, 100, 1 },
2050 {"bool1", "set boolean value", OFFSET(bool1), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, 1 },
2051 {"bool2", "set boolean value", OFFSET(bool2), AV_OPT_TYPE_BOOL, { .i64 = 1 }, -1, 1, 1 },
2052 {"bool3", "set boolean value", OFFSET(bool3), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, 1 },
2056 static const char *test_get_name(void *ctx)
2061 static const AVClass test_class = {
2067 static void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
2069 vfprintf(stdout, fmt, vl);
2076 av_log_set_level(AV_LOG_DEBUG);
2077 av_log_set_callback(log_callback_help);
2079 printf("Testing default values\n");
2081 TestContext test_ctx = { 0 };
2082 test_ctx.class = &test_class;
2083 av_opt_set_defaults(&test_ctx);
2085 printf("num=%d\n", test_ctx.num);
2086 printf("toggle=%d\n", test_ctx.toggle);
2087 printf("string=%s\n", test_ctx.string);
2088 printf("escape=%s\n", test_ctx.escape);
2089 printf("flags=%d\n", test_ctx.flags);
2090 printf("rational=%d/%d\n", test_ctx.rational.num, test_ctx.rational.den);
2091 printf("video_rate=%d/%d\n", test_ctx.video_rate.num, test_ctx.video_rate.den);
2092 printf("width=%d height=%d\n", test_ctx.w, test_ctx.h);
2093 printf("pix_fmt=%s\n", av_get_pix_fmt_name(test_ctx.pix_fmt));
2094 printf("sample_fmt=%s\n", av_get_sample_fmt_name(test_ctx.sample_fmt));
2095 printf("duration=%"PRId64"\n", test_ctx.duration);
2096 printf("color=%d %d %d %d\n", test_ctx.color[0], test_ctx.color[1], test_ctx.color[2], test_ctx.color[3]);
2097 printf("channel_layout=%"PRId64"=%"PRId64"\n", test_ctx.channel_layout, (int64_t)AV_CH_LAYOUT_HEXAGONAL);
2098 if (test_ctx.binary)
2099 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]);
2100 printf("binary_size=%d\n", test_ctx.binary_size);
2101 printf("num64=%"PRId64"\n", test_ctx.num64);
2102 printf("flt=%.6f\n", test_ctx.flt);
2103 printf("dbl=%.6f\n", test_ctx.dbl);
2105 av_opt_show2(&test_ctx, NULL, -1, 0);
2107 av_opt_free(&test_ctx);
2110 printf("\nTesting av_opt_is_set_to_default()\n");
2113 TestContext test_ctx = { 0 };
2114 const AVOption *o = NULL;
2115 test_ctx.class = &test_class;
2117 av_log_set_level(AV_LOG_QUIET);
2119 while (o = av_opt_next(&test_ctx, o)) {
2120 ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0);
2121 printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : "");
2123 av_opt_set_defaults(&test_ctx);
2124 while (o = av_opt_next(&test_ctx, o)) {
2125 ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0);
2126 printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : "");
2128 av_opt_free(&test_ctx);
2131 printf("\nTest av_opt_serialize()\n");
2133 TestContext test_ctx = { 0 };
2135 test_ctx.class = &test_class;
2137 av_log_set_level(AV_LOG_QUIET);
2139 av_opt_set_defaults(&test_ctx);
2140 if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) {
2141 printf("%s\n", buf);
2142 av_opt_free(&test_ctx);
2143 memset(&test_ctx, 0, sizeof(test_ctx));
2144 test_ctx.class = &test_class;
2145 av_set_options_string(&test_ctx, buf, "=", ",");
2147 if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) {
2148 printf("%s\n", buf);
2152 av_opt_free(&test_ctx);
2155 printf("\nTesting av_set_options_string()\n");
2157 TestContext test_ctx = { 0 };
2158 static const char * const options[] = {
2174 "flags=+mu-lame : num=42: toggle=0",
2175 "num=42 : string=blahblah",
2176 "rational=0 : rational=1/2 : rational=1/-1",
2189 "video_rate=30000/1001",
2190 "video_rate=30/1.001",
2194 "duration=1\\:23\\:45.67",
2198 "cl=stereo+downmix",
2222 test_ctx.class = &test_class;
2223 av_opt_set_defaults(&test_ctx);
2225 av_log_set_level(AV_LOG_QUIET);
2227 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
2228 int silence_log = !strcmp(options[i], "rational=-1/0"); // inf formating differs between platforms
2229 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
2231 av_log_set_callback(NULL);
2232 if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
2233 printf("Error '%s'\n", options[i]);
2235 printf("OK '%s'\n", options[i]);
2236 av_log_set_callback(log_callback_help);
2238 av_opt_free(&test_ctx);
2241 printf("\nTesting av_opt_set_from_string()\n");
2243 TestContext test_ctx = { 0 };
2244 static const char * const options[] = {
2252 " 5 : hello : size = pal ",
2253 "a_very_long_option_name_that_will_need_to_be_ellipsized_around_here=42"
2255 static const char * const shorthand[] = { "num", "string", NULL };
2257 test_ctx.class = &test_class;
2258 av_opt_set_defaults(&test_ctx);
2260 av_log_set_level(AV_LOG_QUIET);
2262 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
2263 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
2264 if (av_opt_set_from_string(&test_ctx, options[i], shorthand, "=", ":") < 0)
2265 printf("Error '%s'\n", options[i]);
2267 printf("OK '%s'\n", options[i]);
2269 av_opt_free(&test_ctx);