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>
30 #include "channel_layout.h"
36 #include "parseutils.h"
38 #include "mathematics.h"
39 #include "samplefmt.h"
44 const AVOption *av_opt_next(const void *obj, const AVOption *last)
49 class = *(const AVClass**)obj;
50 if (!last && class && class->option && class->option[0].name)
52 if (last && last[1].name)
57 static int read_number(const AVOption *o, const void *dst, double *num, int *den, int64_t *intnum)
60 case AV_OPT_TYPE_FLAGS: *intnum = *(unsigned int*)dst;return 0;
61 case AV_OPT_TYPE_PIXEL_FMT: *intnum = *(enum AVPixelFormat *)dst;return 0;
62 case AV_OPT_TYPE_SAMPLE_FMT:*intnum = *(enum AVSampleFormat*)dst;return 0;
63 case AV_OPT_TYPE_BOOL:
64 case AV_OPT_TYPE_INT: *intnum = *(int *)dst;return 0;
65 case AV_OPT_TYPE_CHANNEL_LAYOUT:
66 case AV_OPT_TYPE_DURATION:
67 case AV_OPT_TYPE_INT64: *intnum = *(int64_t *)dst;return 0;
68 case AV_OPT_TYPE_FLOAT: *num = *(float *)dst;return 0;
69 case AV_OPT_TYPE_DOUBLE: *num = *(double *)dst;return 0;
70 case AV_OPT_TYPE_RATIONAL: *intnum = ((AVRational*)dst)->num;
71 *den = ((AVRational*)dst)->den;
73 case AV_OPT_TYPE_CONST: *num = o->default_val.dbl; return 0;
75 return AVERROR(EINVAL);
78 static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
80 if (o->type != AV_OPT_TYPE_FLAGS &&
81 (o->max * den < num * intnum || o->min * den > num * intnum)) {
82 num = den ? num*intnum/den : (num*intnum ? INFINITY : NAN);
83 av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
84 num, o->name, o->min, o->max);
85 return AVERROR(ERANGE);
87 if (o->type == AV_OPT_TYPE_FLAGS) {
88 double d = num*intnum/den;
89 if (d < -1.5 || d > 0xFFFFFFFF+0.5 || (llrint(d*256) & 255)) {
90 av_log(obj, AV_LOG_ERROR,
91 "Value %f for parameter '%s' is not a valid set of 32bit integer flags\n",
92 num*intnum/den, o->name);
93 return AVERROR(ERANGE);
98 case AV_OPT_TYPE_PIXEL_FMT: *(enum AVPixelFormat *)dst = llrint(num/den) * intnum; break;
99 case AV_OPT_TYPE_SAMPLE_FMT:*(enum AVSampleFormat*)dst = llrint(num/den) * intnum; break;
100 case AV_OPT_TYPE_BOOL:
101 case AV_OPT_TYPE_FLAGS:
102 case AV_OPT_TYPE_INT: *(int *)dst= llrint(num/den)*intnum; break;
103 case AV_OPT_TYPE_DURATION:
104 case AV_OPT_TYPE_CHANNEL_LAYOUT:
105 case AV_OPT_TYPE_INT64: *(int64_t *)dst= llrint(num/den)*intnum; break;
106 case AV_OPT_TYPE_FLOAT: *(float *)dst= num*intnum/den; break;
107 case AV_OPT_TYPE_DOUBLE:*(double *)dst= num*intnum/den; break;
108 case AV_OPT_TYPE_RATIONAL:
109 if ((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den};
110 else *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
113 return AVERROR(EINVAL);
118 static int hexchar2int(char c) {
119 if (c >= '0' && c <= '9') return c - '0';
120 if (c >= 'a' && c <= 'f') return c - 'a' + 10;
121 if (c >= 'A' && c <= 'F') return c - 'A' + 10;
125 static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
127 int *lendst = (int *)(dst + 1);
134 if (!val || !(len = strlen(val)))
138 return AVERROR(EINVAL);
141 ptr = bin = av_malloc(len);
143 return AVERROR(ENOMEM);
145 int a = hexchar2int(*val++);
146 int b = hexchar2int(*val++);
147 if (a < 0 || b < 0) {
149 return AVERROR(EINVAL);
151 *ptr++ = (a << 4) | b;
159 static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
162 *dst = av_strdup(val);
163 return *dst ? 0 : AVERROR(ENOMEM);
166 #define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
167 opt->type == AV_OPT_TYPE_CONST || \
168 opt->type == AV_OPT_TYPE_FLAGS || \
169 opt->type == AV_OPT_TYPE_INT) ? \
170 opt->default_val.i64 : opt->default_val.dbl)
172 static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
178 if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) {
179 if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0)
191 if (o->type == AV_OPT_TYPE_FLAGS) {
192 if (*val == '+' || *val == '-')
194 for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
200 const AVOption *o_named = av_opt_find(target_obj, i ? buf : val, o->unit, 0, 0);
203 double const_values[64];
204 const char * const_names[64];
205 if (o_named && o_named->type == AV_OPT_TYPE_CONST)
206 d = DEFAULT_NUMVAL(o_named);
209 for (o_named = NULL; o_named = av_opt_next(target_obj, o_named); ) {
210 if (o_named->type == AV_OPT_TYPE_CONST &&
212 !strcmp(o_named->unit, o->unit)) {
213 if (ci + 6 >= FF_ARRAY_ELEMS(const_values)) {
214 av_log(obj, AV_LOG_ERROR, "const_values array too small for %s\n", o->unit);
215 return AVERROR_PATCHWELCOME;
217 const_names [ci ] = o_named->name;
218 const_values[ci++] = DEFAULT_NUMVAL(o_named);
222 const_names [ci ] = "default";
223 const_values[ci++] = DEFAULT_NUMVAL(o);
224 const_names [ci ] = "max";
225 const_values[ci++] = o->max;
226 const_names [ci ] = "min";
227 const_values[ci++] = o->min;
228 const_names [ci ] = "none";
229 const_values[ci++] = 0;
230 const_names [ci ] = "all";
231 const_values[ci++] = ~0;
232 const_names [ci] = NULL;
233 const_values[ci] = 0;
235 res = av_expr_parse_and_eval(&d, i ? buf : val, const_names,
236 const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
238 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
243 if (o->type == AV_OPT_TYPE_FLAGS) {
244 read_number(o, dst, NULL, NULL, &intnum);
245 if (cmd == '+') d = intnum | (int64_t)d;
246 else if (cmd == '-') d = intnum &~(int64_t)d;
249 if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
259 static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst)
263 if (!val || !strcmp(val, "none")) {
268 ret = av_parse_video_size(dst, dst + 1, val);
270 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
274 static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst)
278 ret = AVERROR(EINVAL);
280 ret = av_parse_video_rate(dst, val);
283 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
287 static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst)
294 ret = av_parse_color(dst, val, -1, obj);
296 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val);
302 static const char *get_bool_name(int val)
306 return val ? "true" : "false";
309 static int set_string_bool(void *obj, const AVOption *o, const char *val, int *dst)
316 if (!strcmp(val, "auto")) {
318 } else if (av_match_name(val, "true,y,yes,enable,enabled,on")) {
320 } else if (av_match_name(val, "false,n,no,disable,disabled,off")) {
324 n = strtol(val, &end, 10);
325 if (val + strlen(val) != end)
329 if (n < o->min || n > o->max)
336 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as boolean\n", val);
337 return AVERROR(EINVAL);
340 static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst,
341 int fmt_nb, int ((*get_fmt)(const char *)), const char *desc)
345 if (!val || !strcmp(val, "none")) {
351 fmt = strtol(val, &tail, 0);
352 if (*tail || (unsigned)fmt >= fmt_nb) {
353 av_log(obj, AV_LOG_ERROR,
354 "Unable to parse option value \"%s\" as %s\n", val, desc);
355 return AVERROR(EINVAL);
360 min = FFMAX(o->min, -1);
361 max = FFMIN(o->max, fmt_nb-1);
363 // hack for compatibility with old ffmpeg
364 if(min == 0 && max == 0) {
369 if (fmt < min || fmt > max) {
370 av_log(obj, AV_LOG_ERROR,
371 "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
372 fmt, o->name, desc, min, max);
373 return AVERROR(ERANGE);
380 static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
382 return set_string_fmt(obj, o, val, dst,
383 AV_PIX_FMT_NB, av_get_pix_fmt, "pixel format");
386 static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
388 return set_string_fmt(obj, o, val, dst,
389 AV_SAMPLE_FMT_NB, av_get_sample_fmt, "sample format");
392 int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
395 void *dst, *target_obj;
396 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
397 if (!o || !target_obj)
398 return AVERROR_OPTION_NOT_FOUND;
399 if (!val && (o->type != AV_OPT_TYPE_STRING &&
400 o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
401 o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE &&
402 o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR &&
403 o->type != AV_OPT_TYPE_CHANNEL_LAYOUT && o->type != AV_OPT_TYPE_BOOL))
404 return AVERROR(EINVAL);
406 if (o->flags & AV_OPT_FLAG_READONLY)
407 return AVERROR(EINVAL);
409 dst = ((uint8_t*)target_obj) + o->offset;
411 case AV_OPT_TYPE_BOOL: return set_string_bool(obj, o, val, dst);
412 case AV_OPT_TYPE_STRING: return set_string(obj, o, val, dst);
413 case AV_OPT_TYPE_BINARY: return set_string_binary(obj, o, val, dst);
414 case AV_OPT_TYPE_FLAGS:
415 case AV_OPT_TYPE_INT:
416 case AV_OPT_TYPE_INT64:
417 case AV_OPT_TYPE_FLOAT:
418 case AV_OPT_TYPE_DOUBLE:
419 case AV_OPT_TYPE_RATIONAL: return set_string_number(obj, target_obj, o, val, dst);
420 case AV_OPT_TYPE_IMAGE_SIZE: return set_string_image_size(obj, o, val, dst);
421 case AV_OPT_TYPE_VIDEO_RATE: return set_string_video_rate(obj, o, val, dst);
422 case AV_OPT_TYPE_PIXEL_FMT: return set_string_pixel_fmt(obj, o, val, dst);
423 case AV_OPT_TYPE_SAMPLE_FMT: return set_string_sample_fmt(obj, o, val, dst);
424 case AV_OPT_TYPE_DURATION:
429 if ((ret = av_parse_time(dst, val, 1)) < 0)
430 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val);
434 case AV_OPT_TYPE_COLOR: return set_string_color(obj, o, val, dst);
435 case AV_OPT_TYPE_CHANNEL_LAYOUT:
436 if (!val || !strcmp(val, "none")) {
439 int64_t cl = av_get_channel_layout(val);
441 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val);
442 ret = AVERROR(EINVAL);
444 *(int64_t *)dst = cl;
450 av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
451 return AVERROR(EINVAL);
454 #define OPT_EVAL_NUMBER(name, opttype, vartype)\
455 int av_opt_eval_ ## name(void *obj, const AVOption *o, const char *val, vartype *name ## _out)\
457 if (!o || o->type != opttype || o->flags & AV_OPT_FLAG_READONLY)\
458 return AVERROR(EINVAL);\
459 return set_string_number(obj, obj, o, val, name ## _out);\
462 OPT_EVAL_NUMBER(flags, AV_OPT_TYPE_FLAGS, int)
463 OPT_EVAL_NUMBER(int, AV_OPT_TYPE_INT, int)
464 OPT_EVAL_NUMBER(int64, AV_OPT_TYPE_INT64, int64_t)
465 OPT_EVAL_NUMBER(float, AV_OPT_TYPE_FLOAT, float)
466 OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE, double)
467 OPT_EVAL_NUMBER(q, AV_OPT_TYPE_RATIONAL, AVRational)
469 static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
472 void *dst, *target_obj;
473 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
475 if (!o || !target_obj)
476 return AVERROR_OPTION_NOT_FOUND;
478 if (o->flags & AV_OPT_FLAG_READONLY)
479 return AVERROR(EINVAL);
481 dst = ((uint8_t*)target_obj) + o->offset;
482 return write_number(obj, o, dst, num, den, intnum);
485 int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
487 return set_number(obj, name, 1, 1, val, search_flags);
490 int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
492 return set_number(obj, name, val, 1, 1, search_flags);
495 int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
497 return set_number(obj, name, val.num, val.den, 1, search_flags);
500 int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
503 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
508 if (!o || !target_obj)
509 return AVERROR_OPTION_NOT_FOUND;
511 if (o->type != AV_OPT_TYPE_BINARY || o->flags & AV_OPT_FLAG_READONLY)
512 return AVERROR(EINVAL);
514 ptr = len ? av_malloc(len) : NULL;
516 return AVERROR(ENOMEM);
518 dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
519 lendst = (int *)(dst + 1);
525 memcpy(ptr, val, len);
530 int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
533 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
535 if (!o || !target_obj)
536 return AVERROR_OPTION_NOT_FOUND;
537 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
538 av_log(obj, AV_LOG_ERROR,
539 "The value set by option '%s' is not an image size.\n", o->name);
540 return AVERROR(EINVAL);
543 av_log(obj, AV_LOG_ERROR,
544 "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
545 return AVERROR(EINVAL);
547 *(int *)(((uint8_t *)target_obj) + o->offset) = w;
548 *(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h;
552 int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
555 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
557 if (!o || !target_obj)
558 return AVERROR_OPTION_NOT_FOUND;
559 if (o->type != AV_OPT_TYPE_VIDEO_RATE) {
560 av_log(obj, AV_LOG_ERROR,
561 "The value set by option '%s' is not a video rate.\n", o->name);
562 return AVERROR(EINVAL);
564 if (val.num <= 0 || val.den <= 0)
565 return AVERROR(EINVAL);
566 return set_number(obj, name, val.num, val.den, 1, search_flags);
569 static int set_format(void *obj, const char *name, int fmt, int search_flags,
570 enum AVOptionType type, const char *desc, int nb_fmts)
573 const AVOption *o = av_opt_find2(obj, name, NULL, 0,
574 search_flags, &target_obj);
577 if (!o || !target_obj)
578 return AVERROR_OPTION_NOT_FOUND;
579 if (o->type != type) {
580 av_log(obj, AV_LOG_ERROR,
581 "The value set by option '%s' is not a %s format", name, desc);
582 return AVERROR(EINVAL);
585 min = FFMAX(o->min, -1);
586 max = FFMIN(o->max, nb_fmts-1);
588 if (fmt < min || fmt > max) {
589 av_log(obj, AV_LOG_ERROR,
590 "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
591 fmt, name, desc, min, max);
592 return AVERROR(ERANGE);
594 *(int *)(((uint8_t *)target_obj) + o->offset) = fmt;
598 int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
600 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
603 int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
605 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
608 int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, int search_flags)
611 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
613 if (!o || !target_obj)
614 return AVERROR_OPTION_NOT_FOUND;
615 if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
616 av_log(obj, AV_LOG_ERROR,
617 "The value set by option '%s' is not a channel layout.\n", o->name);
618 return AVERROR(EINVAL);
620 *(int64_t *)(((uint8_t *)target_obj) + o->offset) = cl;
624 int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val, int search_flags)
628 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
630 if (!o || !target_obj)
631 return AVERROR_OPTION_NOT_FOUND;
632 if (o->flags & AV_OPT_FLAG_READONLY)
633 return AVERROR(EINVAL);
635 dst = (AVDictionary **)(((uint8_t *)target_obj) + o->offset);
637 av_dict_copy(dst, val, 0);
642 int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
644 void *dst, *target_obj;
645 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
646 uint8_t *bin, buf[128];
650 if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
651 return AVERROR_OPTION_NOT_FOUND;
653 dst = (uint8_t*)target_obj + o->offset;
657 case AV_OPT_TYPE_BOOL:
658 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(get_bool_name(*(int *)dst), "invalid"));
660 case AV_OPT_TYPE_FLAGS: ret = snprintf(buf, sizeof(buf), "0x%08X", *(int *)dst);break;
661 case AV_OPT_TYPE_INT: ret = snprintf(buf, sizeof(buf), "%d" , *(int *)dst);break;
662 case AV_OPT_TYPE_INT64: ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t*)dst);break;
663 case AV_OPT_TYPE_FLOAT: ret = snprintf(buf, sizeof(buf), "%f" , *(float *)dst);break;
664 case AV_OPT_TYPE_DOUBLE: ret = snprintf(buf, sizeof(buf), "%f" , *(double *)dst);break;
665 case AV_OPT_TYPE_VIDEO_RATE:
666 case AV_OPT_TYPE_RATIONAL: ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
667 case AV_OPT_TYPE_CONST: ret = snprintf(buf, sizeof(buf), "%f" , o->default_val.dbl);break;
668 case AV_OPT_TYPE_STRING:
669 if (*(uint8_t**)dst) {
670 *out_val = av_strdup(*(uint8_t**)dst);
671 } else if (search_flags & AV_OPT_ALLOW_NULL) {
675 *out_val = av_strdup("");
677 return *out_val ? 0 : AVERROR(ENOMEM);
678 case AV_OPT_TYPE_BINARY:
679 if (!*(uint8_t**)dst && (search_flags & AV_OPT_ALLOW_NULL)) {
683 len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
684 if ((uint64_t)len*2 + 1 > INT_MAX)
685 return AVERROR(EINVAL);
686 if (!(*out_val = av_malloc(len*2 + 1)))
687 return AVERROR(ENOMEM);
692 bin = *(uint8_t**)dst;
693 for (i = 0; i < len; i++)
694 snprintf(*out_val + i*2, 3, "%02X", bin[i]);
696 case AV_OPT_TYPE_IMAGE_SIZE:
697 ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
699 case AV_OPT_TYPE_PIXEL_FMT:
700 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
702 case AV_OPT_TYPE_SAMPLE_FMT:
703 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
705 case AV_OPT_TYPE_DURATION:
706 i64 = *(int64_t *)dst;
707 ret = snprintf(buf, sizeof(buf), "%"PRIi64":%02d:%02d.%06d",
708 i64 / 3600000000, (int)((i64 / 60000000) % 60),
709 (int)((i64 / 1000000) % 60), (int)(i64 % 1000000));
711 case AV_OPT_TYPE_COLOR:
712 ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x",
713 (int)((uint8_t *)dst)[0], (int)((uint8_t *)dst)[1],
714 (int)((uint8_t *)dst)[2], (int)((uint8_t *)dst)[3]);
716 case AV_OPT_TYPE_CHANNEL_LAYOUT:
717 i64 = *(int64_t *)dst;
718 ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64);
721 return AVERROR(EINVAL);
724 if (ret >= sizeof(buf))
725 return AVERROR(EINVAL);
726 *out_val = av_strdup(buf);
727 return *out_val ? 0 : AVERROR(ENOMEM);
730 static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum,
733 void *dst, *target_obj;
734 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
735 if (!o || !target_obj)
738 dst = ((uint8_t*)target_obj) + o->offset;
740 if (o_out) *o_out= o;
742 return read_number(o, dst, num, den, intnum);
749 int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
755 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
757 *out_val = num*intnum/den;
761 int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
767 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
769 *out_val = num*intnum/den;
773 int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
779 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
782 if (num == 1.0 && (int)intnum == intnum)
783 *out_val = (AVRational){intnum, den};
785 *out_val = av_d2q(num*intnum/den, 1<<24);
789 int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
791 void *dst, *target_obj;
792 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
793 if (!o || !target_obj)
794 return AVERROR_OPTION_NOT_FOUND;
795 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
796 av_log(obj, AV_LOG_ERROR,
797 "The value for option '%s' is not an image size.\n", name);
798 return AVERROR(EINVAL);
801 dst = ((uint8_t*)target_obj) + o->offset;
802 if (w_out) *w_out = *(int *)dst;
803 if (h_out) *h_out = *((int *)dst+1);
807 int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
813 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
816 if (num == 1.0 && (int)intnum == intnum)
817 *out_val = (AVRational){intnum, den};
819 *out_val = av_d2q(num*intnum/den, 1<<24);
823 static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
824 enum AVOptionType type, const char *desc)
826 void *dst, *target_obj;
827 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
828 if (!o || !target_obj)
829 return AVERROR_OPTION_NOT_FOUND;
830 if (o->type != type) {
831 av_log(obj, AV_LOG_ERROR,
832 "The value for option '%s' is not a %s format.\n", desc, name);
833 return AVERROR(EINVAL);
836 dst = ((uint8_t*)target_obj) + o->offset;
837 *out_fmt = *(int *)dst;
841 int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
843 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
846 int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
848 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
851 int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl)
853 void *dst, *target_obj;
854 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
855 if (!o || !target_obj)
856 return AVERROR_OPTION_NOT_FOUND;
857 if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
858 av_log(obj, AV_LOG_ERROR,
859 "The value for option '%s' is not a channel layout.\n", name);
860 return AVERROR(EINVAL);
863 dst = ((uint8_t*)target_obj) + o->offset;
864 *cl = *(int64_t *)dst;
868 int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val)
872 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
874 if (!o || !target_obj)
875 return AVERROR_OPTION_NOT_FOUND;
876 if (o->type != AV_OPT_TYPE_DICT)
877 return AVERROR(EINVAL);
879 src = *(AVDictionary **)(((uint8_t *)target_obj) + o->offset);
880 av_dict_copy(out_val, src, 0);
885 int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
887 const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
888 const AVOption *flag = av_opt_find(obj, flag_name,
889 field ? field->unit : NULL, 0, 0);
892 if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
893 av_opt_get_int(obj, field_name, 0, &res) < 0)
895 return res & flag->default_val.i64;
898 static void log_value(void *av_log_obj, int level, double d)
901 av_log(av_log_obj, level, "INT_MAX");
902 } else if (d == INT_MIN) {
903 av_log(av_log_obj, level, "INT_MIN");
904 } else if (d == UINT32_MAX) {
905 av_log(av_log_obj, level, "UINT32_MAX");
906 } else if (d == (double)INT64_MAX) {
907 av_log(av_log_obj, level, "I64_MAX");
908 } else if (d == INT64_MIN) {
909 av_log(av_log_obj, level, "I64_MIN");
910 } else if (d == FLT_MAX) {
911 av_log(av_log_obj, level, "FLT_MAX");
912 } else if (d == FLT_MIN) {
913 av_log(av_log_obj, level, "FLT_MIN");
914 } else if (d == -FLT_MAX) {
915 av_log(av_log_obj, level, "-FLT_MAX");
916 } else if (d == -FLT_MIN) {
917 av_log(av_log_obj, level, "-FLT_MIN");
918 } else if (d == DBL_MAX) {
919 av_log(av_log_obj, level, "DBL_MAX");
920 } else if (d == DBL_MIN) {
921 av_log(av_log_obj, level, "DBL_MIN");
922 } else if (d == -DBL_MAX) {
923 av_log(av_log_obj, level, "-DBL_MAX");
924 } else if (d == -DBL_MIN) {
925 av_log(av_log_obj, level, "-DBL_MIN");
927 av_log(av_log_obj, level, "%g", d);
931 static void opt_list(void *obj, void *av_log_obj, const char *unit,
932 int req_flags, int rej_flags)
934 const AVOption *opt=NULL;
938 while ((opt = av_opt_next(obj, opt))) {
939 if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
942 /* Don't print CONST's on level one.
943 * Don't print anything but CONST's on level two.
944 * Only print items from the requested unit.
946 if (!unit && opt->type==AV_OPT_TYPE_CONST)
948 else if (unit && opt->type!=AV_OPT_TYPE_CONST)
950 else if (unit && opt->type==AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
952 else if (unit && opt->type == AV_OPT_TYPE_CONST)
953 av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name);
955 av_log(av_log_obj, AV_LOG_INFO, " %s%-17s ",
956 (opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-",
960 case AV_OPT_TYPE_FLAGS:
961 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>");
963 case AV_OPT_TYPE_INT:
964 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>");
966 case AV_OPT_TYPE_INT64:
967 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>");
969 case AV_OPT_TYPE_DOUBLE:
970 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>");
972 case AV_OPT_TYPE_FLOAT:
973 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>");
975 case AV_OPT_TYPE_STRING:
976 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>");
978 case AV_OPT_TYPE_RATIONAL:
979 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>");
981 case AV_OPT_TYPE_BINARY:
982 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>");
984 case AV_OPT_TYPE_IMAGE_SIZE:
985 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
987 case AV_OPT_TYPE_VIDEO_RATE:
988 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
990 case AV_OPT_TYPE_PIXEL_FMT:
991 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
993 case AV_OPT_TYPE_SAMPLE_FMT:
994 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>");
996 case AV_OPT_TYPE_DURATION:
997 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>");
999 case AV_OPT_TYPE_COLOR:
1000 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>");
1002 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1003 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>");
1005 case AV_OPT_TYPE_BOOL:
1006 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<boolean>");
1008 case AV_OPT_TYPE_CONST:
1010 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
1013 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
1014 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
1015 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_FILTERING_PARAM)? 'F' : '.');
1016 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.');
1017 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
1018 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
1019 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_EXPORT) ? 'X' : '.');
1020 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_READONLY) ? 'R' : '.');
1023 av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
1025 if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) {
1026 switch (opt->type) {
1027 case AV_OPT_TYPE_INT:
1028 case AV_OPT_TYPE_INT64:
1029 case AV_OPT_TYPE_DOUBLE:
1030 case AV_OPT_TYPE_FLOAT:
1031 case AV_OPT_TYPE_RATIONAL:
1032 for (i = 0; i < r->nb_ranges; i++) {
1033 av_log(av_log_obj, AV_LOG_INFO, " (from ");
1034 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
1035 av_log(av_log_obj, AV_LOG_INFO, " to ");
1036 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
1037 av_log(av_log_obj, AV_LOG_INFO, ")");
1041 av_opt_freep_ranges(&r);
1044 if (opt->type != AV_OPT_TYPE_CONST &&
1045 opt->type != AV_OPT_TYPE_BINARY &&
1046 !((opt->type == AV_OPT_TYPE_COLOR ||
1047 opt->type == AV_OPT_TYPE_IMAGE_SIZE ||
1048 opt->type == AV_OPT_TYPE_STRING ||
1049 opt->type == AV_OPT_TYPE_VIDEO_RATE) &&
1050 !opt->default_val.str)) {
1051 av_log(av_log_obj, AV_LOG_INFO, " (default ");
1052 switch (opt->type) {
1053 case AV_OPT_TYPE_BOOL:
1054 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(get_bool_name(opt->default_val.i64), "invalid"));
1056 case AV_OPT_TYPE_FLAGS:
1057 av_log(av_log_obj, AV_LOG_INFO, "%"PRIX64, opt->default_val.i64);
1059 case AV_OPT_TYPE_DURATION:
1060 case AV_OPT_TYPE_INT:
1061 case AV_OPT_TYPE_INT64:
1062 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.i64);
1064 case AV_OPT_TYPE_DOUBLE:
1065 case AV_OPT_TYPE_FLOAT:
1066 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.dbl);
1068 case AV_OPT_TYPE_RATIONAL: {
1069 AVRational q = av_d2q(opt->default_val.dbl, INT_MAX);
1070 av_log(av_log_obj, AV_LOG_INFO, "%d/%d", q.num, q.den); }
1072 case AV_OPT_TYPE_PIXEL_FMT:
1073 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(opt->default_val.i64), "none"));
1075 case AV_OPT_TYPE_SAMPLE_FMT:
1076 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(opt->default_val.i64), "none"));
1078 case AV_OPT_TYPE_COLOR:
1079 case AV_OPT_TYPE_IMAGE_SIZE:
1080 case AV_OPT_TYPE_STRING:
1081 case AV_OPT_TYPE_VIDEO_RATE:
1082 av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str);
1084 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1085 av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64);
1088 av_log(av_log_obj, AV_LOG_INFO, ")");
1091 av_log(av_log_obj, AV_LOG_INFO, "\n");
1092 if (opt->unit && opt->type != AV_OPT_TYPE_CONST) {
1093 opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
1098 int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
1103 av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
1105 opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
1110 void av_opt_set_defaults(void *s)
1112 av_opt_set_defaults2(s, 0, 0);
1115 void av_opt_set_defaults2(void *s, int mask, int flags)
1117 const AVOption *opt = NULL;
1118 while ((opt = av_opt_next(s, opt))) {
1119 void *dst = ((uint8_t*)s) + opt->offset;
1121 if ((opt->flags & mask) != flags)
1124 if (opt->flags & AV_OPT_FLAG_READONLY)
1127 switch (opt->type) {
1128 case AV_OPT_TYPE_CONST:
1129 /* Nothing to be done here */
1131 case AV_OPT_TYPE_BOOL:
1132 case AV_OPT_TYPE_FLAGS:
1133 case AV_OPT_TYPE_INT:
1134 case AV_OPT_TYPE_INT64:
1135 case AV_OPT_TYPE_DURATION:
1136 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1137 case AV_OPT_TYPE_PIXEL_FMT:
1138 case AV_OPT_TYPE_SAMPLE_FMT:
1139 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1141 case AV_OPT_TYPE_DOUBLE:
1142 case AV_OPT_TYPE_FLOAT: {
1144 val = opt->default_val.dbl;
1145 write_number(s, opt, dst, val, 1, 1);
1148 case AV_OPT_TYPE_RATIONAL: {
1150 val = av_d2q(opt->default_val.dbl, INT_MAX);
1151 write_number(s, opt, dst, 1, val.den, val.num);
1154 case AV_OPT_TYPE_COLOR:
1155 set_string_color(s, opt, opt->default_val.str, dst);
1157 case AV_OPT_TYPE_STRING:
1158 set_string(s, opt, opt->default_val.str, dst);
1160 case AV_OPT_TYPE_IMAGE_SIZE:
1161 set_string_image_size(s, opt, opt->default_val.str, dst);
1163 case AV_OPT_TYPE_VIDEO_RATE:
1164 set_string_video_rate(s, opt, opt->default_val.str, dst);
1166 case AV_OPT_TYPE_BINARY:
1167 set_string_binary(s, opt, opt->default_val.str, dst);
1169 case AV_OPT_TYPE_DICT:
1170 /* Cannot set defaults for these types */
1173 av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
1179 * Store the value in the field in ctx that is named like key.
1180 * ctx must be an AVClass context, storing is done using AVOptions.
1182 * @param buf the string to parse, buf will be updated to point at the
1183 * separator just after the parsed key/value pair
1184 * @param key_val_sep a 0-terminated list of characters used to
1185 * separate key from value
1186 * @param pairs_sep a 0-terminated list of characters used to separate
1187 * two pairs from each other
1188 * @return 0 if the key/value pair has been successfully parsed and
1189 * set, or a negative value corresponding to an AVERROR code in case
1191 * AVERROR(EINVAL) if the key/value pair cannot be parsed,
1192 * the error code issued by av_opt_set() if the key/value pair
1195 static int parse_key_value_pair(void *ctx, const char **buf,
1196 const char *key_val_sep, const char *pairs_sep)
1198 char *key = av_get_token(buf, key_val_sep);
1203 return AVERROR(ENOMEM);
1205 if (*key && strspn(*buf, key_val_sep)) {
1207 val = av_get_token(buf, pairs_sep);
1210 return AVERROR(ENOMEM);
1213 av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
1215 return AVERROR(EINVAL);
1218 av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val);
1220 ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN);
1221 if (ret == AVERROR_OPTION_NOT_FOUND)
1222 av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
1229 int av_set_options_string(void *ctx, const char *opts,
1230 const char *key_val_sep, const char *pairs_sep)
1238 if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
1249 #define WHITESPACES " \n\t"
1251 static int is_key_char(char c)
1253 return (unsigned)((c | 32) - 'a') < 26 ||
1254 (unsigned)(c - '0') < 10 ||
1255 c == '-' || c == '_' || c == '/' || c == '.';
1259 * Read a key from a string.
1261 * The key consists of is_key_char characters and must be terminated by a
1262 * character from the delim string; spaces are ignored.
1264 * @return 0 for success (even with ellipsis), <0 for failure
1266 static int get_key(const char **ropts, const char *delim, char **rkey)
1268 const char *opts = *ropts;
1269 const char *key_start, *key_end;
1271 key_start = opts += strspn(opts, WHITESPACES);
1272 while (is_key_char(*opts))
1275 opts += strspn(opts, WHITESPACES);
1276 if (!*opts || !strchr(delim, *opts))
1277 return AVERROR(EINVAL);
1279 if (!(*rkey = av_malloc(key_end - key_start + 1)))
1280 return AVERROR(ENOMEM);
1281 memcpy(*rkey, key_start, key_end - key_start);
1282 (*rkey)[key_end - key_start] = 0;
1287 int av_opt_get_key_value(const char **ropts,
1288 const char *key_val_sep, const char *pairs_sep,
1290 char **rkey, char **rval)
1293 char *key = NULL, *val;
1294 const char *opts = *ropts;
1296 if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
1297 !(flags & AV_OPT_FLAG_IMPLICIT_KEY))
1298 return AVERROR(EINVAL);
1299 if (!(val = av_get_token(&opts, pairs_sep))) {
1301 return AVERROR(ENOMEM);
1309 int av_opt_set_from_string(void *ctx, const char *opts,
1310 const char *const *shorthand,
1311 const char *key_val_sep, const char *pairs_sep)
1314 const char *dummy_shorthand = NULL;
1315 char *av_uninit(parsed_key), *av_uninit(value);
1321 shorthand = &dummy_shorthand;
1324 ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
1325 *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
1326 &parsed_key, &value);
1328 if (ret == AVERROR(EINVAL))
1329 av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts);
1331 av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts,
1339 while (*shorthand) /* discard all remaining shorthand */
1342 key = *(shorthand++);
1345 av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
1346 if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
1347 if (ret == AVERROR_OPTION_NOT_FOUND)
1348 av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
1350 av_free(parsed_key);
1355 av_free(parsed_key);
1361 void av_opt_free(void *obj)
1363 const AVOption *o = NULL;
1364 while ((o = av_opt_next(obj, o))) {
1366 case AV_OPT_TYPE_STRING:
1367 case AV_OPT_TYPE_BINARY:
1368 av_freep((uint8_t *)obj + o->offset);
1371 case AV_OPT_TYPE_DICT:
1372 av_dict_free((AVDictionary **)(((uint8_t *)obj) + o->offset));
1381 int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags)
1383 AVDictionaryEntry *t = NULL;
1384 AVDictionary *tmp = NULL;
1390 while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
1391 ret = av_opt_set(obj, t->key, t->value, search_flags);
1392 if (ret == AVERROR_OPTION_NOT_FOUND)
1393 av_dict_set(&tmp, t->key, t->value, 0);
1395 av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
1400 av_dict_free(options);
1405 int av_opt_set_dict(void *obj, AVDictionary **options)
1407 return av_opt_set_dict2(obj, options, 0);
1410 const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
1411 int opt_flags, int search_flags)
1413 return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
1416 const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
1417 int opt_flags, int search_flags, void **target_obj)
1420 const AVOption *o = NULL;
1430 if (search_flags & AV_OPT_SEARCH_CHILDREN) {
1431 if (search_flags & AV_OPT_SEARCH_FAKE_OBJ) {
1432 const AVClass *child = NULL;
1433 while (child = av_opt_child_class_next(c, child))
1434 if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL))
1438 while (child = av_opt_child_next(obj, child))
1439 if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
1444 while (o = av_opt_next(obj, o)) {
1445 if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
1446 ((!unit && o->type != AV_OPT_TYPE_CONST) ||
1447 (unit && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) {
1449 if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ))
1460 void *av_opt_child_next(void *obj, void *prev)
1462 const AVClass *c = *(AVClass**)obj;
1464 return c->child_next(obj, prev);
1468 const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
1470 if (parent->child_class_next)
1471 return parent->child_class_next(prev);
1475 void *av_opt_ptr(const AVClass *class, void *obj, const char *name)
1477 const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL);
1480 return (uint8_t*)obj + opt->offset;
1483 static int opt_size(enum AVOptionType type)
1486 case AV_OPT_TYPE_BOOL:
1487 case AV_OPT_TYPE_INT:
1488 case AV_OPT_TYPE_FLAGS: return sizeof(int);
1489 case AV_OPT_TYPE_DURATION:
1490 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1491 case AV_OPT_TYPE_INT64: return sizeof(int64_t);
1492 case AV_OPT_TYPE_DOUBLE: return sizeof(double);
1493 case AV_OPT_TYPE_FLOAT: return sizeof(float);
1494 case AV_OPT_TYPE_STRING: return sizeof(uint8_t*);
1495 case AV_OPT_TYPE_VIDEO_RATE:
1496 case AV_OPT_TYPE_RATIONAL: return sizeof(AVRational);
1497 case AV_OPT_TYPE_BINARY: return sizeof(uint8_t*) + sizeof(int);
1498 case AV_OPT_TYPE_IMAGE_SIZE:return sizeof(int[2]);
1499 case AV_OPT_TYPE_PIXEL_FMT: return sizeof(enum AVPixelFormat);
1500 case AV_OPT_TYPE_SAMPLE_FMT:return sizeof(enum AVSampleFormat);
1501 case AV_OPT_TYPE_COLOR: return 4;
1506 int av_opt_copy(void *dst, const void *src)
1508 const AVOption *o = NULL;
1515 c = *(AVClass**)src;
1516 if (*(AVClass**)dst && c != *(AVClass**)dst)
1517 return AVERROR(EINVAL);
1519 while ((o = av_opt_next(src, o))) {
1520 void *field_dst = ((uint8_t*)dst) + o->offset;
1521 void *field_src = ((uint8_t*)src) + o->offset;
1522 uint8_t **field_dst8 = (uint8_t**)field_dst;
1523 uint8_t **field_src8 = (uint8_t**)field_src;
1525 if (o->type == AV_OPT_TYPE_STRING) {
1526 if (*field_dst8 != *field_src8)
1527 av_freep(field_dst8);
1528 *field_dst8 = av_strdup(*field_src8);
1529 if (*field_src8 && !*field_dst8)
1530 ret = AVERROR(ENOMEM);
1531 } else if (o->type == AV_OPT_TYPE_BINARY) {
1532 int len = *(int*)(field_src8 + 1);
1533 if (*field_dst8 != *field_src8)
1534 av_freep(field_dst8);
1535 *field_dst8 = av_memdup(*field_src8, len);
1536 if (len && !*field_dst8) {
1537 ret = AVERROR(ENOMEM);
1540 *(int*)(field_dst8 + 1) = len;
1541 } else if (o->type == AV_OPT_TYPE_CONST) {
1543 } else if (o->type == AV_OPT_TYPE_DICT) {
1544 AVDictionary **sdict = (AVDictionary **) field_src;
1545 AVDictionary **ddict = (AVDictionary **) field_dst;
1546 if (*sdict != *ddict)
1547 av_dict_free(ddict);
1549 av_dict_copy(ddict, *sdict, 0);
1550 if (av_dict_count(*sdict) != av_dict_count(*ddict))
1551 ret = AVERROR(ENOMEM);
1553 memcpy(field_dst, field_src, opt_size(o->type));
1559 int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1562 const AVClass *c = *(AVClass**)obj;
1563 int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL;
1565 if (c->version > (52 << 16 | 11 << 8))
1566 callback = c->query_ranges;
1569 callback = av_opt_query_ranges_default;
1571 ret = callback(ranges_arg, obj, key, flags);
1573 if (!(flags & AV_OPT_MULTI_COMPONENT_RANGE))
1575 (*ranges_arg)->nb_components = ret;
1580 int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1582 AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
1583 AVOptionRange **range_array = av_mallocz(sizeof(void*));
1584 AVOptionRange *range = av_mallocz(sizeof(*range));
1585 const AVOption *field = av_opt_find(obj, key, NULL, 0, flags);
1590 if (!ranges || !range || !range_array || !field) {
1591 ret = AVERROR(ENOMEM);
1595 ranges->range = range_array;
1596 ranges->range[0] = range;
1597 ranges->nb_ranges = 1;
1598 ranges->nb_components = 1;
1599 range->is_range = 1;
1600 range->value_min = field->min;
1601 range->value_max = field->max;
1603 switch (field->type) {
1604 case AV_OPT_TYPE_BOOL:
1605 case AV_OPT_TYPE_INT:
1606 case AV_OPT_TYPE_INT64:
1607 case AV_OPT_TYPE_PIXEL_FMT:
1608 case AV_OPT_TYPE_SAMPLE_FMT:
1609 case AV_OPT_TYPE_FLOAT:
1610 case AV_OPT_TYPE_DOUBLE:
1611 case AV_OPT_TYPE_DURATION:
1612 case AV_OPT_TYPE_COLOR:
1613 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1615 case AV_OPT_TYPE_STRING:
1616 range->component_min = 0;
1617 range->component_max = 0x10FFFF; // max unicode value
1618 range->value_min = -1;
1619 range->value_max = INT_MAX;
1621 case AV_OPT_TYPE_RATIONAL:
1622 range->component_min = INT_MIN;
1623 range->component_max = INT_MAX;
1625 case AV_OPT_TYPE_IMAGE_SIZE:
1626 range->component_min = 0;
1627 range->component_max = INT_MAX/128/8;
1628 range->value_min = 0;
1629 range->value_max = INT_MAX/8;
1631 case AV_OPT_TYPE_VIDEO_RATE:
1632 range->component_min = 1;
1633 range->component_max = INT_MAX;
1634 range->value_min = 1;
1635 range->value_max = INT_MAX;
1638 ret = AVERROR(ENOSYS);
1642 *ranges_arg = ranges;
1647 av_free(range_array);
1651 void av_opt_freep_ranges(AVOptionRanges **rangesp)
1654 AVOptionRanges *ranges = *rangesp;
1659 for (i = 0; i < ranges->nb_ranges * ranges->nb_components; i++) {
1660 AVOptionRange *range = ranges->range[i];
1662 av_freep(&range->str);
1663 av_freep(&ranges->range[i]);
1666 av_freep(&ranges->range);
1670 int av_opt_is_set_to_default(void *obj, const AVOption *o)
1681 return AVERROR(EINVAL);
1683 dst = ((uint8_t*)obj) + o->offset;
1686 case AV_OPT_TYPE_CONST:
1688 case AV_OPT_TYPE_BOOL:
1689 case AV_OPT_TYPE_FLAGS:
1690 case AV_OPT_TYPE_PIXEL_FMT:
1691 case AV_OPT_TYPE_SAMPLE_FMT:
1692 case AV_OPT_TYPE_INT:
1693 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1694 case AV_OPT_TYPE_DURATION:
1695 case AV_OPT_TYPE_INT64:
1696 read_number(o, dst, NULL, NULL, &i64);
1697 return o->default_val.i64 == i64;
1698 case AV_OPT_TYPE_STRING:
1699 str = *(char **)dst;
1700 if (str == o->default_val.str) //2 NULLs
1702 if (!str || !o->default_val.str) //1 NULL
1704 return !strcmp(str, o->default_val.str);
1705 case AV_OPT_TYPE_DOUBLE:
1706 read_number(o, dst, &d, NULL, NULL);
1707 return o->default_val.dbl == d;
1708 case AV_OPT_TYPE_FLOAT:
1709 read_number(o, dst, &d, NULL, NULL);
1710 f = o->default_val.dbl;
1713 case AV_OPT_TYPE_RATIONAL:
1714 q = av_d2q(o->default_val.dbl, INT_MAX);
1715 return !av_cmp_q(*(AVRational*)dst, q);
1716 case AV_OPT_TYPE_BINARY: {
1721 int opt_size = *(int *)((void **)dst + 1);
1722 void *opt_ptr = *(void **)dst;
1723 if (!opt_size && (!o->default_val.str || !strlen(o->default_val.str)))
1725 if (!opt_size || !o->default_val.str || !strlen(o->default_val.str ))
1727 if (opt_size != strlen(o->default_val.str) / 2)
1729 ret = set_string_binary(NULL, NULL, o->default_val.str, &tmp.data);
1731 ret = !memcmp(opt_ptr, tmp.data, tmp.size);
1735 case AV_OPT_TYPE_DICT:
1736 /* Binary and dict have not default support yet. Any pointer is not default. */
1737 return !!(*(void **)dst);
1738 case AV_OPT_TYPE_IMAGE_SIZE:
1739 if (!o->default_val.str || !strcmp(o->default_val.str, "none"))
1741 else if ((ret = av_parse_video_size(&w, &h, o->default_val.str)) < 0)
1743 return (w == *(int *)dst) && (h == *((int *)dst+1));
1744 case AV_OPT_TYPE_VIDEO_RATE:
1745 q = (AVRational){0, 0};
1746 if (o->default_val.str) {
1747 if ((ret = av_parse_video_rate(&q, o->default_val.str)) < 0)
1750 return !av_cmp_q(*(AVRational*)dst, q);
1751 case AV_OPT_TYPE_COLOR: {
1752 uint8_t color[4] = {0, 0, 0, 0};
1753 if (o->default_val.str) {
1754 if ((ret = av_parse_color(color, o->default_val.str, -1, NULL)) < 0)
1757 return !memcmp(color, dst, sizeof(color));
1760 av_log(obj, AV_LOG_WARNING, "Not supported option type: %d, option name: %s\n", o->type, o->name);
1763 return AVERROR_PATCHWELCOME;
1766 int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags)
1771 return AVERROR(EINVAL);
1772 o = av_opt_find2(obj, name, NULL, 0, search_flags, &target);
1774 return AVERROR_OPTION_NOT_FOUND;
1775 return av_opt_is_set_to_default(target, o);
1778 int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer,
1779 const char key_val_sep, const char pairs_sep)
1781 const AVOption *o = NULL;
1785 const char special_chars[] = {pairs_sep, key_val_sep, '\0'};
1787 if (pairs_sep == '\0' || key_val_sep == '\0' || pairs_sep == key_val_sep ||
1788 pairs_sep == '\\' || key_val_sep == '\\') {
1789 av_log(obj, AV_LOG_ERROR, "Invalid separator(s) found.");
1790 return AVERROR(EINVAL);
1793 if (!obj || !buffer)
1794 return AVERROR(EINVAL);
1797 av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED);
1799 while (o = av_opt_next(obj, o)) {
1800 if (o->type == AV_OPT_TYPE_CONST)
1802 if ((flags & AV_OPT_SERIALIZE_OPT_FLAGS_EXACT) && o->flags != opt_flags)
1804 else if (((o->flags & opt_flags) != opt_flags))
1806 if (flags & AV_OPT_SERIALIZE_SKIP_DEFAULTS && av_opt_is_set_to_default(obj, o) > 0)
1808 if ((ret = av_opt_get(obj, o->name, 0, &buf)) < 0) {
1809 av_bprint_finalize(&bprint, NULL);
1814 av_bprint_append_data(&bprint, &pairs_sep, 1);
1815 av_bprint_escape(&bprint, o->name, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
1816 av_bprint_append_data(&bprint, &key_val_sep, 1);
1817 av_bprint_escape(&bprint, buf, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
1821 av_bprint_finalize(&bprint, buffer);
1827 typedef struct TestContext
1829 const AVClass *class;
1834 AVRational rational;
1835 AVRational video_rate;
1837 enum AVPixelFormat pix_fmt;
1838 enum AVSampleFormat sample_fmt;
1841 int64_t channel_layout;
1857 #define OFFSET(x) offsetof(TestContext, x)
1859 #define TEST_FLAG_COOL 01
1860 #define TEST_FLAG_LAME 02
1861 #define TEST_FLAG_MU 04
1863 static const AVOption test_options[]= {
1864 {"num", "set num", OFFSET(num), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100, 1 },
1865 {"toggle", "set toggle", OFFSET(toggle), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, 1 },
1866 {"rational", "set rational", OFFSET(rational), AV_OPT_TYPE_RATIONAL, {.dbl = 1}, 0, 10, 1 },
1867 {"string", "set string", OFFSET(string), AV_OPT_TYPE_STRING, {.str = "default"}, CHAR_MIN, CHAR_MAX, 1 },
1868 {"escape", "set escape str", OFFSET(escape), AV_OPT_TYPE_STRING, {.str = "\\=,"}, CHAR_MIN, CHAR_MAX, 1 },
1869 {"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 1}, 0, INT_MAX, 1, "flags" },
1870 {"cool", "set cool flag", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_COOL}, INT_MIN, INT_MAX, 1, "flags" },
1871 {"lame", "set lame flag", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_LAME}, INT_MIN, INT_MAX, 1, "flags" },
1872 {"mu", "set mu flag", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_MU}, INT_MIN, INT_MAX, 1, "flags" },
1873 {"size", "set size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE,{.str="200x300"}, 0, 0, 1},
1874 {"pix_fmt", "set pixfmt", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_0BGR}, -1, INT_MAX, 1},
1875 {"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64 = AV_SAMPLE_FMT_S16}, -1, INT_MAX, 1},
1876 {"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0 , 1},
1877 {"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 1000}, 0, INT64_MAX, 1},
1878 {"color", "set color", OFFSET(color), AV_OPT_TYPE_COLOR, {.str = "pink"}, 0, 0, 1},
1879 {"cl", "set channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64 = AV_CH_LAYOUT_HEXAGONAL}, 0, INT64_MAX, 1},
1880 {"bin", "set binary value", OFFSET(binary), AV_OPT_TYPE_BINARY, {.str="62696e00"}, 0, 0, 1 },
1881 {"bin1", "set binary value", OFFSET(binary1), AV_OPT_TYPE_BINARY, {.str=NULL}, 0, 0, 1 },
1882 {"bin2", "set binary value", OFFSET(binary2), AV_OPT_TYPE_BINARY, {.str=""}, 0, 0, 1 },
1883 {"num64", "set num 64bit", OFFSET(num64), AV_OPT_TYPE_INT64, {.i64 = 1}, 0, 100, 1 },
1884 {"flt", "set float", OFFSET(flt), AV_OPT_TYPE_FLOAT, {.dbl = 1.0/3}, 0, 100, 1},
1885 {"dbl", "set double", OFFSET(dbl), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0/3}, 0, 100, 1 },
1886 {"bool1", "set boolean value", OFFSET(bool1), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, 1 },
1887 {"bool2", "set boolean value", OFFSET(bool2), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, 1 },
1888 {"bool3", "set boolean value", OFFSET(bool3), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 1 },
1892 static const char *test_get_name(void *ctx)
1897 static const AVClass test_class = {
1903 static void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
1905 vfprintf(stdout, fmt, vl);
1912 av_log_set_level(AV_LOG_DEBUG);
1913 av_log_set_callback(log_callback_help);
1915 printf("Testing default values\n");
1917 TestContext test_ctx = { 0 };
1918 test_ctx.class = &test_class;
1919 av_opt_set_defaults(&test_ctx);
1921 printf("num=%d\n", test_ctx.num);
1922 printf("toggle=%d\n", test_ctx.toggle);
1923 printf("string=%s\n", test_ctx.string);
1924 printf("escape=%s\n", test_ctx.escape);
1925 printf("flags=%d\n", test_ctx.flags);
1926 printf("rational=%d/%d\n", test_ctx.rational.num, test_ctx.rational.den);
1927 printf("video_rate=%d/%d\n", test_ctx.video_rate.num, test_ctx.video_rate.den);
1928 printf("width=%d height=%d\n", test_ctx.w, test_ctx.h);
1929 printf("pix_fmt=%s\n", av_get_pix_fmt_name(test_ctx.pix_fmt));
1930 printf("sample_fmt=%s\n", av_get_sample_fmt_name(test_ctx.sample_fmt));
1931 printf("duration=%"PRId64"\n", test_ctx.duration);
1932 printf("color=%d %d %d %d\n", test_ctx.color[0], test_ctx.color[1], test_ctx.color[2], test_ctx.color[3]);
1933 printf("channel_layout=%"PRId64"=%"PRId64"\n", test_ctx.channel_layout, (int64_t)AV_CH_LAYOUT_HEXAGONAL);
1934 if (test_ctx.binary)
1935 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]);
1936 printf("binary_size=%d\n", test_ctx.binary_size);
1937 printf("num64=%"PRId64"\n", test_ctx.num64);
1938 printf("flt=%.6f\n", test_ctx.flt);
1939 printf("dbl=%.6f\n", test_ctx.dbl);
1941 av_opt_show2(&test_ctx, NULL, -1, 0);
1943 av_opt_free(&test_ctx);
1946 printf("\nTesting av_opt_is_set_to_default()\n");
1949 TestContext test_ctx = { 0 };
1950 const AVOption *o = NULL;
1951 test_ctx.class = &test_class;
1953 av_log_set_level(AV_LOG_QUIET);
1955 while (o = av_opt_next(&test_ctx, o)) {
1956 ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0);
1957 printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : "");
1959 av_opt_set_defaults(&test_ctx);
1960 while (o = av_opt_next(&test_ctx, o)) {
1961 ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0);
1962 printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : "");
1964 av_opt_free(&test_ctx);
1967 printf("\nTest av_opt_serialize()\n");
1969 TestContext test_ctx = { 0 };
1971 test_ctx.class = &test_class;
1973 av_log_set_level(AV_LOG_QUIET);
1975 av_opt_set_defaults(&test_ctx);
1976 if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) {
1977 printf("%s\n", buf);
1978 av_opt_free(&test_ctx);
1979 memset(&test_ctx, 0, sizeof(test_ctx));
1980 test_ctx.class = &test_class;
1981 av_set_options_string(&test_ctx, buf, "=", ",");
1983 if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) {
1984 printf("%s\n", buf);
1988 av_opt_free(&test_ctx);
1991 printf("\nTesting av_set_options_string()\n");
1993 TestContext test_ctx = { 0 };
1994 static const char * const options[] = {
2010 "flags=+mu-lame : num=42: toggle=0",
2011 "num=42 : string=blahblah",
2012 "rational=0 : rational=1/2 : rational=1/-1",
2025 "video_rate=30000/1001",
2026 "video_rate=30/1.001",
2030 "duration=1\\:23\\:45.67",
2034 "cl=stereo+downmix",
2058 test_ctx.class = &test_class;
2059 av_opt_set_defaults(&test_ctx);
2061 av_log_set_level(AV_LOG_QUIET);
2063 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
2064 int silence_log = !strcmp(options[i], "rational=-1/0"); // inf formating differs between platforms
2065 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
2067 av_log_set_callback(NULL);
2068 if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
2069 printf("Error '%s'\n", options[i]);
2071 printf("OK '%s'\n", options[i]);
2072 av_log_set_callback(log_callback_help);
2074 av_opt_free(&test_ctx);
2077 printf("\nTesting av_opt_set_from_string()\n");
2079 TestContext test_ctx = { 0 };
2080 static const char * const options[] = {
2088 " 5 : hello : size = pal ",
2089 "a_very_long_option_name_that_will_need_to_be_ellipsized_around_here=42"
2091 static const char * const shorthand[] = { "num", "string", NULL };
2093 test_ctx.class = &test_class;
2094 av_opt_set_defaults(&test_ctx);
2096 av_log_set_level(AV_LOG_QUIET);
2098 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
2099 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
2100 if (av_opt_set_from_string(&test_ctx, options[i], shorthand, "=", ":") < 0)
2101 printf("Error '%s'\n", options[i]);
2103 printf("OK '%s'\n", options[i]);
2105 av_opt_free(&test_ctx);