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 #if FF_API_OLD_AVOPTIONS
45 const AVOption *av_next_option(FF_CONST_AVUTIL55 void *obj, const AVOption *last)
47 return av_opt_next(obj, last);
51 const AVOption *av_opt_next(FF_CONST_AVUTIL55 void *obj, const AVOption *last)
56 class = *(const AVClass**)obj;
57 if (!last && class && class->option && class->option[0].name)
59 if (last && last[1].name)
64 static int read_number(const AVOption *o, const void *dst, double *num, int *den, int64_t *intnum)
67 case AV_OPT_TYPE_FLAGS: *intnum = *(unsigned int*)dst;return 0;
68 case AV_OPT_TYPE_PIXEL_FMT:
69 case AV_OPT_TYPE_SAMPLE_FMT:
70 case AV_OPT_TYPE_INT: *intnum = *(int *)dst;return 0;
71 case AV_OPT_TYPE_CHANNEL_LAYOUT:
72 case AV_OPT_TYPE_DURATION:
73 case AV_OPT_TYPE_INT64: *intnum = *(int64_t *)dst;return 0;
74 case AV_OPT_TYPE_FLOAT: *num = *(float *)dst;return 0;
75 case AV_OPT_TYPE_DOUBLE: *num = *(double *)dst;return 0;
76 case AV_OPT_TYPE_RATIONAL: *intnum = ((AVRational*)dst)->num;
77 *den = ((AVRational*)dst)->den;
79 case AV_OPT_TYPE_CONST: *num = o->default_val.dbl; return 0;
81 return AVERROR(EINVAL);
84 static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
86 if (o->type != AV_OPT_TYPE_FLAGS &&
87 (o->max * den < num * intnum || o->min * den > num * intnum)) {
88 av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
89 num*intnum/den, o->name, o->min, o->max);
90 return AVERROR(ERANGE);
92 if (o->type == AV_OPT_TYPE_FLAGS) {
93 double d = num*intnum/den;
94 if (d < -1.5 || d > 0xFFFFFFFF+0.5 || (llrint(d*256) & 255)) {
95 av_log(obj, AV_LOG_ERROR,
96 "Value %f for parameter '%s' is not a valid set of 32bit integer flags\n",
97 num*intnum/den, o->name);
98 return AVERROR(ERANGE);
103 case AV_OPT_TYPE_FLAGS:
104 case AV_OPT_TYPE_PIXEL_FMT:
105 case AV_OPT_TYPE_SAMPLE_FMT:
106 case AV_OPT_TYPE_INT: *(int *)dst= llrint(num/den)*intnum; break;
107 case AV_OPT_TYPE_DURATION:
108 case AV_OPT_TYPE_CHANNEL_LAYOUT:
109 case AV_OPT_TYPE_INT64: *(int64_t *)dst= llrint(num/den)*intnum; break;
110 case AV_OPT_TYPE_FLOAT: *(float *)dst= num*intnum/den; break;
111 case AV_OPT_TYPE_DOUBLE:*(double *)dst= num*intnum/den; break;
112 case AV_OPT_TYPE_RATIONAL:
113 if ((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den};
114 else *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
117 return AVERROR(EINVAL);
122 static int hexchar2int(char c) {
123 if (c >= '0' && c <= '9') return c - '0';
124 if (c >= 'a' && c <= 'f') return c - 'a' + 10;
125 if (c >= 'A' && c <= 'F') return c - 'A' + 10;
129 static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
131 int *lendst = (int *)(dst + 1);
138 if (!val || !(len = strlen(val)))
142 return AVERROR(EINVAL);
145 ptr = bin = av_malloc(len);
147 int a = hexchar2int(*val++);
148 int b = hexchar2int(*val++);
149 if (a < 0 || b < 0) {
151 return AVERROR(EINVAL);
153 *ptr++ = (a << 4) | b;
161 static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
164 *dst = av_strdup(val);
165 return *dst ? 0 : AVERROR(ENOMEM);
168 #define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
169 opt->type == AV_OPT_TYPE_CONST || \
170 opt->type == AV_OPT_TYPE_FLAGS || \
171 opt->type == AV_OPT_TYPE_INT) ? \
172 opt->default_val.i64 : opt->default_val.dbl)
174 static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
180 if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) {
181 if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0)
193 if (o->type == AV_OPT_TYPE_FLAGS) {
194 if (*val == '+' || *val == '-')
196 for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
202 const AVOption *o_named = av_opt_find(target_obj, i ? buf : val, o->unit, 0, 0);
205 double const_values[64];
206 const char * const_names[64];
207 if (o_named && o_named->type == AV_OPT_TYPE_CONST)
208 d = DEFAULT_NUMVAL(o_named);
211 for (o_named = NULL; o_named = av_opt_next(target_obj, o_named); ) {
212 if (o_named->type == AV_OPT_TYPE_CONST &&
214 !strcmp(o_named->unit, o->unit)) {
215 if (ci + 6 >= FF_ARRAY_ELEMS(const_values)) {
216 av_log(obj, AV_LOG_ERROR, "const_values array too small for %s\n", o->unit);
217 return AVERROR_PATCHWELCOME;
219 const_names [ci ] = o_named->name;
220 const_values[ci++] = DEFAULT_NUMVAL(o_named);
224 const_names [ci ] = "default";
225 const_values[ci++] = DEFAULT_NUMVAL(o);
226 const_names [ci ] = "max";
227 const_values[ci++] = o->max;
228 const_names [ci ] = "min";
229 const_values[ci++] = o->min;
230 const_names [ci ] = "none";
231 const_values[ci++] = 0;
232 const_names [ci ] = "all";
233 const_values[ci++] = ~0;
234 const_names [ci] = NULL;
235 const_values[ci] = 0;
237 res = av_expr_parse_and_eval(&d, i ? buf : val, const_names,
238 const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
240 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
245 if (o->type == AV_OPT_TYPE_FLAGS) {
246 read_number(o, dst, NULL, NULL, &intnum);
247 if (cmd == '+') d = intnum | (int64_t)d;
248 else if (cmd == '-') d = intnum &~(int64_t)d;
251 if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
261 static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst)
265 if (!val || !strcmp(val, "none")) {
270 ret = av_parse_video_size(dst, dst + 1, val);
272 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
276 static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst)
280 ret = AVERROR(EINVAL);
282 ret = av_parse_video_rate(dst, val);
285 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
289 static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst)
296 ret = av_parse_color(dst, val, -1, obj);
298 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val);
304 static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst,
305 int fmt_nb, int ((*get_fmt)(const char *)), const char *desc)
309 if (!val || !strcmp(val, "none")) {
315 fmt = strtol(val, &tail, 0);
316 if (*tail || (unsigned)fmt >= fmt_nb) {
317 av_log(obj, AV_LOG_ERROR,
318 "Unable to parse option value \"%s\" as %s\n", val, desc);
319 return AVERROR(EINVAL);
324 min = FFMAX(o->min, -1);
325 max = FFMIN(o->max, fmt_nb-1);
327 // hack for compatibility with old ffmpeg
328 if(min == 0 && max == 0) {
333 if (fmt < min || fmt > max) {
334 av_log(obj, AV_LOG_ERROR,
335 "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
336 fmt, o->name, desc, min, max);
337 return AVERROR(ERANGE);
344 static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
346 return set_string_fmt(obj, o, val, dst,
347 AV_PIX_FMT_NB, av_get_pix_fmt, "pixel format");
350 static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
352 return set_string_fmt(obj, o, val, dst,
353 AV_SAMPLE_FMT_NB, av_get_sample_fmt, "sample format");
356 #if FF_API_OLD_AVOPTIONS
357 int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out)
359 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
362 return av_opt_set(obj, name, val, 0);
366 int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
369 void *dst, *target_obj;
370 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
371 if (!o || !target_obj)
372 return AVERROR_OPTION_NOT_FOUND;
373 if (!val && (o->type != AV_OPT_TYPE_STRING &&
374 o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
375 o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE &&
376 o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR &&
377 o->type != AV_OPT_TYPE_CHANNEL_LAYOUT))
378 return AVERROR(EINVAL);
380 if (o->flags & AV_OPT_FLAG_READONLY)
381 return AVERROR(EINVAL);
383 dst = ((uint8_t*)target_obj) + o->offset;
385 case AV_OPT_TYPE_STRING: return set_string(obj, o, val, dst);
386 case AV_OPT_TYPE_BINARY: return set_string_binary(obj, o, val, dst);
387 case AV_OPT_TYPE_FLAGS:
388 case AV_OPT_TYPE_INT:
389 case AV_OPT_TYPE_INT64:
390 case AV_OPT_TYPE_FLOAT:
391 case AV_OPT_TYPE_DOUBLE:
392 case AV_OPT_TYPE_RATIONAL: return set_string_number(obj, target_obj, o, val, dst);
393 case AV_OPT_TYPE_IMAGE_SIZE: return set_string_image_size(obj, o, val, dst);
394 case AV_OPT_TYPE_VIDEO_RATE: return set_string_video_rate(obj, o, val, dst);
395 case AV_OPT_TYPE_PIXEL_FMT: return set_string_pixel_fmt(obj, o, val, dst);
396 case AV_OPT_TYPE_SAMPLE_FMT: return set_string_sample_fmt(obj, o, val, dst);
397 case AV_OPT_TYPE_DURATION:
402 if ((ret = av_parse_time(dst, val, 1)) < 0)
403 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val);
407 case AV_OPT_TYPE_COLOR: return set_string_color(obj, o, val, dst);
408 case AV_OPT_TYPE_CHANNEL_LAYOUT:
409 if (!val || !strcmp(val, "none")) {
412 #if FF_API_GET_CHANNEL_LAYOUT_COMPAT
413 int64_t cl = ff_get_channel_layout(val, 0);
415 int64_t cl = av_get_channel_layout(val);
418 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val);
419 ret = AVERROR(EINVAL);
421 *(int64_t *)dst = cl;
427 av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
428 return AVERROR(EINVAL);
431 #define OPT_EVAL_NUMBER(name, opttype, vartype)\
432 int av_opt_eval_ ## name(void *obj, const AVOption *o, const char *val, vartype *name ## _out)\
434 if (!o || o->type != opttype || o->flags & AV_OPT_FLAG_READONLY)\
435 return AVERROR(EINVAL);\
436 return set_string_number(obj, obj, o, val, name ## _out);\
439 OPT_EVAL_NUMBER(flags, AV_OPT_TYPE_FLAGS, int)
440 OPT_EVAL_NUMBER(int, AV_OPT_TYPE_INT, int)
441 OPT_EVAL_NUMBER(int64, AV_OPT_TYPE_INT64, int64_t)
442 OPT_EVAL_NUMBER(float, AV_OPT_TYPE_FLOAT, float)
443 OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE, double)
444 OPT_EVAL_NUMBER(q, AV_OPT_TYPE_RATIONAL, AVRational)
446 static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
449 void *dst, *target_obj;
450 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
452 if (!o || !target_obj)
453 return AVERROR_OPTION_NOT_FOUND;
455 if (o->flags & AV_OPT_FLAG_READONLY)
456 return AVERROR(EINVAL);
458 dst = ((uint8_t*)target_obj) + o->offset;
459 return write_number(obj, o, dst, num, den, intnum);
462 #if FF_API_OLD_AVOPTIONS
463 const AVOption *av_set_double(void *obj, const char *name, double n)
465 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
466 if (set_number(obj, name, n, 1, 1, 0) < 0)
471 const AVOption *av_set_q(void *obj, const char *name, AVRational n)
473 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
474 if (set_number(obj, name, n.num, n.den, 1, 0) < 0)
479 const AVOption *av_set_int(void *obj, const char *name, int64_t n)
481 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
482 if (set_number(obj, name, 1, 1, n, 0) < 0)
488 int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
490 return set_number(obj, name, 1, 1, val, search_flags);
493 int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
495 return set_number(obj, name, val, 1, 1, search_flags);
498 int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
500 return set_number(obj, name, val.num, val.den, 1, search_flags);
503 int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
506 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
511 if (!o || !target_obj)
512 return AVERROR_OPTION_NOT_FOUND;
514 if (o->type != AV_OPT_TYPE_BINARY || o->flags & AV_OPT_FLAG_READONLY)
515 return AVERROR(EINVAL);
517 ptr = len ? av_malloc(len) : NULL;
519 return AVERROR(ENOMEM);
521 dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
522 lendst = (int *)(dst + 1);
528 memcpy(ptr, val, len);
533 int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
536 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
538 if (!o || !target_obj)
539 return AVERROR_OPTION_NOT_FOUND;
540 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
541 av_log(obj, AV_LOG_ERROR,
542 "The value set by option '%s' is not an image size.\n", o->name);
543 return AVERROR(EINVAL);
546 av_log(obj, AV_LOG_ERROR,
547 "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
548 return AVERROR(EINVAL);
550 *(int *)(((uint8_t *)target_obj) + o->offset) = w;
551 *(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h;
555 int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
558 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
560 if (!o || !target_obj)
561 return AVERROR_OPTION_NOT_FOUND;
562 if (o->type != AV_OPT_TYPE_VIDEO_RATE) {
563 av_log(obj, AV_LOG_ERROR,
564 "The value set by option '%s' is not a video rate.\n", o->name);
565 return AVERROR(EINVAL);
567 if (val.num <= 0 || val.den <= 0)
568 return AVERROR(EINVAL);
569 return set_number(obj, name, val.num, val.den, 1, search_flags);
572 static int set_format(void *obj, const char *name, int fmt, int search_flags,
573 enum AVOptionType type, const char *desc, int nb_fmts)
576 const AVOption *o = av_opt_find2(obj, name, NULL, 0,
577 search_flags, &target_obj);
580 if (!o || !target_obj)
581 return AVERROR_OPTION_NOT_FOUND;
582 if (o->type != type) {
583 av_log(obj, AV_LOG_ERROR,
584 "The value set by option '%s' is not a %s format", name, desc);
585 return AVERROR(EINVAL);
588 min = FFMAX(o->min, -1);
589 max = FFMIN(o->max, nb_fmts-1);
591 if (fmt < min || fmt > max) {
592 av_log(obj, AV_LOG_ERROR,
593 "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
594 fmt, name, desc, min, max);
595 return AVERROR(ERANGE);
597 *(int *)(((uint8_t *)target_obj) + o->offset) = fmt;
601 int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
603 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
606 int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
608 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
611 int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, int search_flags)
614 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
616 if (!o || !target_obj)
617 return AVERROR_OPTION_NOT_FOUND;
618 if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
619 av_log(obj, AV_LOG_ERROR,
620 "The value set by option '%s' is not a channel layout.\n", o->name);
621 return AVERROR(EINVAL);
623 *(int64_t *)(((uint8_t *)target_obj) + o->offset) = cl;
627 #if FF_API_OLD_AVOPTIONS
630 * @param buf a buffer which is used for returning non string values as strings, can be NULL
631 * @param buf_len allocated length in bytes of buf
633 const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len)
635 const AVOption *o = av_opt_find(obj, name, NULL, 0, AV_OPT_SEARCH_CHILDREN);
641 if (o->type != AV_OPT_TYPE_STRING && (!buf || !buf_len))
644 dst= ((uint8_t*)obj) + o->offset;
645 if (o_out) *o_out= o;
648 case AV_OPT_TYPE_FLAGS: snprintf(buf, buf_len, "0x%08X",*(int *)dst);break;
649 case AV_OPT_TYPE_INT: snprintf(buf, buf_len, "%d" , *(int *)dst);break;
650 case AV_OPT_TYPE_INT64: snprintf(buf, buf_len, "%"PRId64, *(int64_t*)dst);break;
651 case AV_OPT_TYPE_FLOAT: snprintf(buf, buf_len, "%f" , *(float *)dst);break;
652 case AV_OPT_TYPE_DOUBLE: snprintf(buf, buf_len, "%f" , *(double *)dst);break;
653 case AV_OPT_TYPE_RATIONAL: snprintf(buf, buf_len, "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
654 case AV_OPT_TYPE_CONST: snprintf(buf, buf_len, "%f" , o->default_val.dbl);break;
655 case AV_OPT_TYPE_STRING: return *(void**)dst;
656 case AV_OPT_TYPE_BINARY:
657 len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
658 if (len >= (buf_len + 1)/2) return NULL;
659 bin = *(uint8_t**)dst;
660 for (i = 0; i < len; i++) snprintf(buf + i*2, 3, "%02X", bin[i]);
662 default: return NULL;
668 int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val, int search_flags)
672 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
674 if (!o || !target_obj)
675 return AVERROR_OPTION_NOT_FOUND;
676 if (o->flags & AV_OPT_FLAG_READONLY)
677 return AVERROR(EINVAL);
679 dst = (AVDictionary **)(((uint8_t *)target_obj) + o->offset);
681 av_dict_copy(dst, val, 0);
686 int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
688 void *dst, *target_obj;
689 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
690 uint8_t *bin, buf[128];
694 if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
695 return AVERROR_OPTION_NOT_FOUND;
697 dst = (uint8_t*)target_obj + o->offset;
701 case AV_OPT_TYPE_FLAGS: ret = snprintf(buf, sizeof(buf), "0x%08X", *(int *)dst);break;
702 case AV_OPT_TYPE_INT: ret = snprintf(buf, sizeof(buf), "%d" , *(int *)dst);break;
703 case AV_OPT_TYPE_INT64: ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t*)dst);break;
704 case AV_OPT_TYPE_FLOAT: ret = snprintf(buf, sizeof(buf), "%f" , *(float *)dst);break;
705 case AV_OPT_TYPE_DOUBLE: ret = snprintf(buf, sizeof(buf), "%f" , *(double *)dst);break;
706 case AV_OPT_TYPE_VIDEO_RATE:
707 case AV_OPT_TYPE_RATIONAL: ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
708 case AV_OPT_TYPE_CONST: ret = snprintf(buf, sizeof(buf), "%f" , o->default_val.dbl);break;
709 case AV_OPT_TYPE_STRING:
711 *out_val = av_strdup(*(uint8_t**)dst);
713 *out_val = av_strdup("");
714 return *out_val ? 0 : AVERROR(ENOMEM);
715 case AV_OPT_TYPE_BINARY:
716 len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
717 if ((uint64_t)len*2 + 1 > INT_MAX)
718 return AVERROR(EINVAL);
719 if (!(*out_val = av_malloc(len*2 + 1)))
720 return AVERROR(ENOMEM);
725 bin = *(uint8_t**)dst;
726 for (i = 0; i < len; i++)
727 snprintf(*out_val + i*2, 3, "%02X", bin[i]);
729 case AV_OPT_TYPE_IMAGE_SIZE:
730 ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
732 case AV_OPT_TYPE_PIXEL_FMT:
733 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
735 case AV_OPT_TYPE_SAMPLE_FMT:
736 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
738 case AV_OPT_TYPE_DURATION:
739 i64 = *(int64_t *)dst;
740 ret = snprintf(buf, sizeof(buf), "%"PRIi64":%02d:%02d.%06d",
741 i64 / 3600000000, (int)((i64 / 60000000) % 60),
742 (int)((i64 / 1000000) % 60), (int)(i64 % 1000000));
744 case AV_OPT_TYPE_COLOR:
745 ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x",
746 (int)((uint8_t *)dst)[0], (int)((uint8_t *)dst)[1],
747 (int)((uint8_t *)dst)[2], (int)((uint8_t *)dst)[3]);
749 case AV_OPT_TYPE_CHANNEL_LAYOUT:
750 i64 = *(int64_t *)dst;
751 ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64);
754 return AVERROR(EINVAL);
757 if (ret >= sizeof(buf))
758 return AVERROR(EINVAL);
759 *out_val = av_strdup(buf);
760 return *out_val ? 0 : AVERROR(ENOMEM);
763 static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum,
766 void *dst, *target_obj;
767 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
768 if (!o || !target_obj)
771 dst = ((uint8_t*)target_obj) + o->offset;
773 if (o_out) *o_out= o;
775 return read_number(o, dst, num, den, intnum);
782 #if FF_API_OLD_AVOPTIONS
783 double av_get_double(void *obj, const char *name, const AVOption **o_out)
789 if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
791 return num*intnum/den;
794 AVRational av_get_q(void *obj, const char *name, const AVOption **o_out)
800 if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
801 return (AVRational){0, 0};
802 if (num == 1.0 && (int)intnum == intnum)
803 return (AVRational){intnum, den};
805 return av_d2q(num*intnum/den, 1<<24);
808 int64_t av_get_int(void *obj, const char *name, const AVOption **o_out)
814 if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
816 return num*intnum/den;
820 int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
826 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
828 *out_val = num*intnum/den;
832 int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
838 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
840 *out_val = num*intnum/den;
844 int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
850 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
853 if (num == 1.0 && (int)intnum == intnum)
854 *out_val = (AVRational){intnum, den};
856 *out_val = av_d2q(num*intnum/den, 1<<24);
860 int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
862 void *dst, *target_obj;
863 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
864 if (!o || !target_obj)
865 return AVERROR_OPTION_NOT_FOUND;
866 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
867 av_log(obj, AV_LOG_ERROR,
868 "The value for option '%s' is not an image size.\n", name);
869 return AVERROR(EINVAL);
872 dst = ((uint8_t*)target_obj) + o->offset;
873 if (w_out) *w_out = *(int *)dst;
874 if (h_out) *h_out = *((int *)dst+1);
878 int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
884 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
887 if (num == 1.0 && (int)intnum == intnum)
888 *out_val = (AVRational){intnum, den};
890 *out_val = av_d2q(num*intnum/den, 1<<24);
894 static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
895 enum AVOptionType type, const char *desc)
897 void *dst, *target_obj;
898 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
899 if (!o || !target_obj)
900 return AVERROR_OPTION_NOT_FOUND;
901 if (o->type != type) {
902 av_log(obj, AV_LOG_ERROR,
903 "The value for option '%s' is not a %s format.\n", desc, name);
904 return AVERROR(EINVAL);
907 dst = ((uint8_t*)target_obj) + o->offset;
908 *out_fmt = *(int *)dst;
912 int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
914 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
917 int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
919 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
922 int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl)
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 != AV_OPT_TYPE_CHANNEL_LAYOUT) {
929 av_log(obj, AV_LOG_ERROR,
930 "The value for option '%s' is not a channel layout.\n", name);
931 return AVERROR(EINVAL);
934 dst = ((uint8_t*)target_obj) + o->offset;
935 *cl = *(int64_t *)dst;
939 int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val)
943 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
945 if (!o || !target_obj)
946 return AVERROR_OPTION_NOT_FOUND;
947 if (o->type != AV_OPT_TYPE_DICT)
948 return AVERROR(EINVAL);
950 src = *(AVDictionary **)(((uint8_t *)target_obj) + o->offset);
951 av_dict_copy(out_val, src, 0);
956 int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
958 const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
959 const AVOption *flag = av_opt_find(obj, flag_name,
960 field ? field->unit : NULL, 0, 0);
963 if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
964 av_opt_get_int(obj, field_name, 0, &res) < 0)
966 return res & flag->default_val.i64;
969 static void log_value(void *av_log_obj, int level, double d)
972 av_log(av_log_obj, level, "INT_MAX");
973 } else if (d == INT_MIN) {
974 av_log(av_log_obj, level, "INT_MIN");
975 } else if (d == UINT32_MAX) {
976 av_log(av_log_obj, level, "UINT32_MAX");
977 } else if (d == (double)INT64_MAX) {
978 av_log(av_log_obj, level, "I64_MAX");
979 } else if (d == INT64_MIN) {
980 av_log(av_log_obj, level, "I64_MIN");
981 } else if (d == FLT_MAX) {
982 av_log(av_log_obj, level, "FLT_MAX");
983 } else if (d == FLT_MIN) {
984 av_log(av_log_obj, level, "FLT_MIN");
985 } else if (d == -FLT_MAX) {
986 av_log(av_log_obj, level, "-FLT_MAX");
987 } else if (d == -FLT_MIN) {
988 av_log(av_log_obj, level, "-FLT_MIN");
989 } else if (d == DBL_MAX) {
990 av_log(av_log_obj, level, "DBL_MAX");
991 } else if (d == DBL_MIN) {
992 av_log(av_log_obj, level, "DBL_MIN");
993 } else if (d == -DBL_MAX) {
994 av_log(av_log_obj, level, "-DBL_MAX");
995 } else if (d == -DBL_MIN) {
996 av_log(av_log_obj, level, "-DBL_MIN");
998 av_log(av_log_obj, level, "%g", d);
1002 static void opt_list(void *obj, void *av_log_obj, const char *unit,
1003 int req_flags, int rej_flags)
1005 const AVOption *opt=NULL;
1009 while ((opt = av_opt_next(obj, opt))) {
1010 if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
1013 /* Don't print CONST's on level one.
1014 * Don't print anything but CONST's on level two.
1015 * Only print items from the requested unit.
1017 if (!unit && opt->type==AV_OPT_TYPE_CONST)
1019 else if (unit && opt->type!=AV_OPT_TYPE_CONST)
1021 else if (unit && opt->type==AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
1023 else if (unit && opt->type == AV_OPT_TYPE_CONST)
1024 av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name);
1026 av_log(av_log_obj, AV_LOG_INFO, " %s%-17s ",
1027 (opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-",
1030 switch (opt->type) {
1031 case AV_OPT_TYPE_FLAGS:
1032 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>");
1034 case AV_OPT_TYPE_INT:
1035 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>");
1037 case AV_OPT_TYPE_INT64:
1038 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>");
1040 case AV_OPT_TYPE_DOUBLE:
1041 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>");
1043 case AV_OPT_TYPE_FLOAT:
1044 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>");
1046 case AV_OPT_TYPE_STRING:
1047 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>");
1049 case AV_OPT_TYPE_RATIONAL:
1050 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>");
1052 case AV_OPT_TYPE_BINARY:
1053 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>");
1055 case AV_OPT_TYPE_IMAGE_SIZE:
1056 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
1058 case AV_OPT_TYPE_VIDEO_RATE:
1059 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
1061 case AV_OPT_TYPE_PIXEL_FMT:
1062 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
1064 case AV_OPT_TYPE_SAMPLE_FMT:
1065 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>");
1067 case AV_OPT_TYPE_DURATION:
1068 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>");
1070 case AV_OPT_TYPE_COLOR:
1071 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>");
1073 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1074 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>");
1076 case AV_OPT_TYPE_CONST:
1078 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
1081 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
1082 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
1083 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_FILTERING_PARAM)? 'F' : '.');
1084 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.');
1085 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
1086 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
1087 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_EXPORT) ? 'X' : '.');
1088 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_READONLY) ? 'R' : '.');
1091 av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
1093 if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) {
1094 switch (opt->type) {
1095 case AV_OPT_TYPE_INT:
1096 case AV_OPT_TYPE_INT64:
1097 case AV_OPT_TYPE_DOUBLE:
1098 case AV_OPT_TYPE_FLOAT:
1099 case AV_OPT_TYPE_RATIONAL:
1100 for (i = 0; i < r->nb_ranges; i++) {
1101 av_log(av_log_obj, AV_LOG_INFO, " (from ");
1102 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
1103 av_log(av_log_obj, AV_LOG_INFO, " to ");
1104 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
1105 av_log(av_log_obj, AV_LOG_INFO, ")");
1109 av_opt_freep_ranges(&r);
1112 if (opt->type != AV_OPT_TYPE_CONST &&
1113 opt->type != AV_OPT_TYPE_BINARY &&
1114 !((opt->type == AV_OPT_TYPE_COLOR ||
1115 opt->type == AV_OPT_TYPE_IMAGE_SIZE ||
1116 opt->type == AV_OPT_TYPE_STRING ||
1117 opt->type == AV_OPT_TYPE_VIDEO_RATE) &&
1118 !opt->default_val.str)) {
1119 av_log(av_log_obj, AV_LOG_INFO, " (default ");
1120 switch (opt->type) {
1121 case AV_OPT_TYPE_FLAGS:
1122 av_log(av_log_obj, AV_LOG_INFO, "%"PRIX64, opt->default_val.i64);
1124 case AV_OPT_TYPE_DURATION:
1125 case AV_OPT_TYPE_INT:
1126 case AV_OPT_TYPE_INT64:
1127 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.i64);
1129 case AV_OPT_TYPE_DOUBLE:
1130 case AV_OPT_TYPE_FLOAT:
1131 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.dbl);
1133 case AV_OPT_TYPE_RATIONAL: {
1134 AVRational q = av_d2q(opt->default_val.dbl, INT_MAX);
1135 av_log(av_log_obj, AV_LOG_INFO, "%d/%d", q.num, q.den); }
1137 case AV_OPT_TYPE_PIXEL_FMT:
1138 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(opt->default_val.i64), "none"));
1140 case AV_OPT_TYPE_SAMPLE_FMT:
1141 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(opt->default_val.i64), "none"));
1143 case AV_OPT_TYPE_COLOR:
1144 case AV_OPT_TYPE_IMAGE_SIZE:
1145 case AV_OPT_TYPE_STRING:
1146 case AV_OPT_TYPE_VIDEO_RATE:
1147 av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str);
1149 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1150 av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64);
1153 av_log(av_log_obj, AV_LOG_INFO, ")");
1156 av_log(av_log_obj, AV_LOG_INFO, "\n");
1157 if (opt->unit && opt->type != AV_OPT_TYPE_CONST) {
1158 opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
1163 int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
1168 av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
1170 opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
1175 void av_opt_set_defaults(void *s)
1177 #if FF_API_OLD_AVOPTIONS
1178 av_opt_set_defaults2(s, 0, 0);
1181 void av_opt_set_defaults2(void *s, int mask, int flags)
1184 const AVOption *opt = NULL;
1185 while ((opt = av_opt_next(s, opt))) {
1186 void *dst = ((uint8_t*)s) + opt->offset;
1187 #if FF_API_OLD_AVOPTIONS
1188 if ((opt->flags & mask) != flags)
1192 if (opt->flags & AV_OPT_FLAG_READONLY)
1195 switch (opt->type) {
1196 case AV_OPT_TYPE_CONST:
1197 /* Nothing to be done here */
1199 case AV_OPT_TYPE_FLAGS:
1200 case AV_OPT_TYPE_INT:
1201 case AV_OPT_TYPE_INT64:
1202 case AV_OPT_TYPE_DURATION:
1203 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1204 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1206 case AV_OPT_TYPE_DOUBLE:
1207 case AV_OPT_TYPE_FLOAT: {
1209 val = opt->default_val.dbl;
1210 write_number(s, opt, dst, val, 1, 1);
1213 case AV_OPT_TYPE_RATIONAL: {
1215 val = av_d2q(opt->default_val.dbl, INT_MAX);
1216 write_number(s, opt, dst, 1, val.den, val.num);
1219 case AV_OPT_TYPE_COLOR:
1220 set_string_color(s, opt, opt->default_val.str, dst);
1222 case AV_OPT_TYPE_STRING:
1223 set_string(s, opt, opt->default_val.str, dst);
1225 case AV_OPT_TYPE_IMAGE_SIZE:
1226 set_string_image_size(s, opt, opt->default_val.str, dst);
1228 case AV_OPT_TYPE_VIDEO_RATE:
1229 set_string_video_rate(s, opt, opt->default_val.str, dst);
1231 case AV_OPT_TYPE_PIXEL_FMT:
1232 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1234 case AV_OPT_TYPE_SAMPLE_FMT:
1235 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1237 case AV_OPT_TYPE_BINARY:
1238 set_string_binary(s, opt, opt->default_val.str, dst);
1240 case AV_OPT_TYPE_DICT:
1241 /* Cannot set defaults for these types */
1244 av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
1250 * Store the value in the field in ctx that is named like key.
1251 * ctx must be an AVClass context, storing is done using AVOptions.
1253 * @param buf the string to parse, buf will be updated to point at the
1254 * separator just after the parsed key/value pair
1255 * @param key_val_sep a 0-terminated list of characters used to
1256 * separate key from value
1257 * @param pairs_sep a 0-terminated list of characters used to separate
1258 * two pairs from each other
1259 * @return 0 if the key/value pair has been successfully parsed and
1260 * set, or a negative value corresponding to an AVERROR code in case
1262 * AVERROR(EINVAL) if the key/value pair cannot be parsed,
1263 * the error code issued by av_opt_set() if the key/value pair
1266 static int parse_key_value_pair(void *ctx, const char **buf,
1267 const char *key_val_sep, const char *pairs_sep)
1269 char *key = av_get_token(buf, key_val_sep);
1274 return AVERROR(ENOMEM);
1276 if (*key && strspn(*buf, key_val_sep)) {
1278 val = av_get_token(buf, pairs_sep);
1281 return AVERROR(ENOMEM);
1284 av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
1286 return AVERROR(EINVAL);
1289 av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val);
1291 ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN);
1292 if (ret == AVERROR_OPTION_NOT_FOUND)
1293 av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
1300 int av_set_options_string(void *ctx, const char *opts,
1301 const char *key_val_sep, const char *pairs_sep)
1309 if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
1320 #define WHITESPACES " \n\t"
1322 static int is_key_char(char c)
1324 return (unsigned)((c | 32) - 'a') < 26 ||
1325 (unsigned)(c - '0') < 10 ||
1326 c == '-' || c == '_' || c == '/' || c == '.';
1330 * Read a key from a string.
1332 * The key consists of is_key_char characters and must be terminated by a
1333 * character from the delim string; spaces are ignored.
1335 * @return 0 for success (even with ellipsis), <0 for failure
1337 static int get_key(const char **ropts, const char *delim, char **rkey)
1339 const char *opts = *ropts;
1340 const char *key_start, *key_end;
1342 key_start = opts += strspn(opts, WHITESPACES);
1343 while (is_key_char(*opts))
1346 opts += strspn(opts, WHITESPACES);
1347 if (!*opts || !strchr(delim, *opts))
1348 return AVERROR(EINVAL);
1350 if (!(*rkey = av_malloc(key_end - key_start + 1)))
1351 return AVERROR(ENOMEM);
1352 memcpy(*rkey, key_start, key_end - key_start);
1353 (*rkey)[key_end - key_start] = 0;
1358 int av_opt_get_key_value(const char **ropts,
1359 const char *key_val_sep, const char *pairs_sep,
1361 char **rkey, char **rval)
1364 char *key = NULL, *val;
1365 const char *opts = *ropts;
1367 if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
1368 !(flags & AV_OPT_FLAG_IMPLICIT_KEY))
1369 return AVERROR(EINVAL);
1370 if (!(val = av_get_token(&opts, pairs_sep))) {
1372 return AVERROR(ENOMEM);
1380 int av_opt_set_from_string(void *ctx, const char *opts,
1381 const char *const *shorthand,
1382 const char *key_val_sep, const char *pairs_sep)
1385 const char *dummy_shorthand = NULL;
1386 char *av_uninit(parsed_key), *av_uninit(value);
1392 shorthand = &dummy_shorthand;
1395 ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
1396 *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
1397 &parsed_key, &value);
1399 if (ret == AVERROR(EINVAL))
1400 av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts);
1402 av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts,
1410 while (*shorthand) /* discard all remaining shorthand */
1413 key = *(shorthand++);
1416 av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
1417 if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
1418 if (ret == AVERROR_OPTION_NOT_FOUND)
1419 av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
1421 av_free(parsed_key);
1426 av_free(parsed_key);
1432 void av_opt_free(void *obj)
1434 const AVOption *o = NULL;
1435 while ((o = av_opt_next(obj, o))) {
1437 case AV_OPT_TYPE_STRING:
1438 case AV_OPT_TYPE_BINARY:
1439 av_freep((uint8_t *)obj + o->offset);
1442 case AV_OPT_TYPE_DICT:
1443 av_dict_free((AVDictionary **)(((uint8_t *)obj) + o->offset));
1452 int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags)
1454 AVDictionaryEntry *t = NULL;
1455 AVDictionary *tmp = NULL;
1461 while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
1462 ret = av_opt_set(obj, t->key, t->value, search_flags);
1463 if (ret == AVERROR_OPTION_NOT_FOUND)
1464 av_dict_set(&tmp, t->key, t->value, 0);
1466 av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
1471 av_dict_free(options);
1476 int av_opt_set_dict(void *obj, AVDictionary **options)
1478 return av_opt_set_dict2(obj, options, 0);
1481 const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
1482 int opt_flags, int search_flags)
1484 return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
1487 const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
1488 int opt_flags, int search_flags, void **target_obj)
1491 const AVOption *o = NULL;
1501 if (search_flags & AV_OPT_SEARCH_CHILDREN) {
1502 if (search_flags & AV_OPT_SEARCH_FAKE_OBJ) {
1503 const AVClass *child = NULL;
1504 while (child = av_opt_child_class_next(c, child))
1505 if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL))
1509 while (child = av_opt_child_next(obj, child))
1510 if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
1515 while (o = av_opt_next(obj, o)) {
1516 if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
1517 ((!unit && o->type != AV_OPT_TYPE_CONST) ||
1518 (unit && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) {
1520 if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ))
1531 void *av_opt_child_next(void *obj, void *prev)
1533 const AVClass *c = *(AVClass**)obj;
1535 return c->child_next(obj, prev);
1539 const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
1541 if (parent->child_class_next)
1542 return parent->child_class_next(prev);
1546 void *av_opt_ptr(const AVClass *class, void *obj, const char *name)
1548 const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL);
1551 return (uint8_t*)obj + opt->offset;
1554 static int opt_size(enum AVOptionType type)
1557 case AV_OPT_TYPE_INT:
1558 case AV_OPT_TYPE_FLAGS: return sizeof(int);
1559 case AV_OPT_TYPE_DURATION:
1560 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1561 case AV_OPT_TYPE_INT64: return sizeof(int64_t);
1562 case AV_OPT_TYPE_DOUBLE: return sizeof(double);
1563 case AV_OPT_TYPE_FLOAT: return sizeof(float);
1564 case AV_OPT_TYPE_STRING: return sizeof(uint8_t*);
1565 case AV_OPT_TYPE_VIDEO_RATE:
1566 case AV_OPT_TYPE_RATIONAL: return sizeof(AVRational);
1567 case AV_OPT_TYPE_BINARY: return sizeof(uint8_t*) + sizeof(int);
1568 case AV_OPT_TYPE_IMAGE_SIZE:return sizeof(int[2]);
1569 case AV_OPT_TYPE_PIXEL_FMT: return sizeof(enum AVPixelFormat);
1570 case AV_OPT_TYPE_SAMPLE_FMT:return sizeof(enum AVSampleFormat);
1571 case AV_OPT_TYPE_COLOR: return 4;
1576 int av_opt_copy(void *dst, FF_CONST_AVUTIL55 void *src)
1578 const AVOption *o = NULL;
1585 c = *(AVClass**)src;
1586 if (*(AVClass**)dst && c != *(AVClass**)dst)
1587 return AVERROR(EINVAL);
1589 while ((o = av_opt_next(src, o))) {
1590 void *field_dst = ((uint8_t*)dst) + o->offset;
1591 void *field_src = ((uint8_t*)src) + o->offset;
1592 uint8_t **field_dst8 = (uint8_t**)field_dst;
1593 uint8_t **field_src8 = (uint8_t**)field_src;
1595 if (o->type == AV_OPT_TYPE_STRING) {
1596 if (*field_dst8 != *field_src8)
1597 av_freep(field_dst8);
1598 *field_dst8 = av_strdup(*field_src8);
1599 if (*field_src8 && !*field_dst8)
1600 ret = AVERROR(ENOMEM);
1601 } else if (o->type == AV_OPT_TYPE_BINARY) {
1602 int len = *(int*)(field_src8 + 1);
1603 if (*field_dst8 != *field_src8)
1604 av_freep(field_dst8);
1605 *field_dst8 = av_memdup(*field_src8, len);
1606 if (len && !*field_dst8) {
1607 ret = AVERROR(ENOMEM);
1610 *(int*)(field_dst8 + 1) = len;
1611 } else if (o->type == AV_OPT_TYPE_CONST) {
1613 } else if (o->type == AV_OPT_TYPE_DICT) {
1614 AVDictionary **sdict = (AVDictionary **) field_src;
1615 AVDictionary **ddict = (AVDictionary **) field_dst;
1616 if (*sdict != *ddict)
1617 av_dict_free(ddict);
1619 av_dict_copy(ddict, *sdict, 0);
1620 if (av_dict_count(*sdict) != av_dict_count(*ddict))
1621 ret = AVERROR(ENOMEM);
1623 memcpy(field_dst, field_src, opt_size(o->type));
1629 int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1632 const AVClass *c = *(AVClass**)obj;
1633 int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL;
1635 if (c->version > (52 << 16 | 11 << 8))
1636 callback = c->query_ranges;
1639 callback = av_opt_query_ranges_default;
1641 ret = callback(ranges_arg, obj, key, flags);
1643 if (!(flags & AV_OPT_MULTI_COMPONENT_RANGE))
1645 (*ranges_arg)->nb_components = ret;
1650 int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1652 AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
1653 AVOptionRange **range_array = av_mallocz(sizeof(void*));
1654 AVOptionRange *range = av_mallocz(sizeof(*range));
1655 const AVOption *field = av_opt_find(obj, key, NULL, 0, flags);
1660 if (!ranges || !range || !range_array || !field) {
1661 ret = AVERROR(ENOMEM);
1665 ranges->range = range_array;
1666 ranges->range[0] = range;
1667 ranges->nb_ranges = 1;
1668 ranges->nb_components = 1;
1669 range->is_range = 1;
1670 range->value_min = field->min;
1671 range->value_max = field->max;
1673 switch (field->type) {
1674 case AV_OPT_TYPE_INT:
1675 case AV_OPT_TYPE_INT64:
1676 case AV_OPT_TYPE_PIXEL_FMT:
1677 case AV_OPT_TYPE_SAMPLE_FMT:
1678 case AV_OPT_TYPE_FLOAT:
1679 case AV_OPT_TYPE_DOUBLE:
1680 case AV_OPT_TYPE_DURATION:
1681 case AV_OPT_TYPE_COLOR:
1682 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1684 case AV_OPT_TYPE_STRING:
1685 range->component_min = 0;
1686 range->component_max = 0x10FFFF; // max unicode value
1687 range->value_min = -1;
1688 range->value_max = INT_MAX;
1690 case AV_OPT_TYPE_RATIONAL:
1691 range->component_min = INT_MIN;
1692 range->component_max = INT_MAX;
1694 case AV_OPT_TYPE_IMAGE_SIZE:
1695 range->component_min = 0;
1696 range->component_max = INT_MAX/128/8;
1697 range->value_min = 0;
1698 range->value_max = INT_MAX/8;
1700 case AV_OPT_TYPE_VIDEO_RATE:
1701 range->component_min = 1;
1702 range->component_max = INT_MAX;
1703 range->value_min = 1;
1704 range->value_max = INT_MAX;
1707 ret = AVERROR(ENOSYS);
1711 *ranges_arg = ranges;
1716 av_free(range_array);
1720 void av_opt_freep_ranges(AVOptionRanges **rangesp)
1723 AVOptionRanges *ranges = *rangesp;
1728 for (i = 0; i < ranges->nb_ranges * ranges->nb_components; i++) {
1729 AVOptionRange *range = ranges->range[i];
1731 av_freep(&range->str);
1732 av_freep(&ranges->range[i]);
1735 av_freep(&ranges->range);
1739 int av_opt_is_set_to_default(void *obj, const AVOption *o)
1750 return AVERROR(EINVAL);
1752 dst = ((uint8_t*)obj) + o->offset;
1755 case AV_OPT_TYPE_CONST:
1757 case AV_OPT_TYPE_FLAGS:
1758 case AV_OPT_TYPE_PIXEL_FMT:
1759 case AV_OPT_TYPE_SAMPLE_FMT:
1760 case AV_OPT_TYPE_INT:
1761 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1762 case AV_OPT_TYPE_DURATION:
1763 case AV_OPT_TYPE_INT64:
1764 read_number(o, dst, NULL, NULL, &i64);
1765 return o->default_val.i64 == i64;
1766 case AV_OPT_TYPE_STRING:
1767 str = *(char **)dst;
1768 if (str == o->default_val.str) //2 NULLs
1770 if (!str || !o->default_val.str) //1 NULL
1772 return !strcmp(str, o->default_val.str);
1773 case AV_OPT_TYPE_DOUBLE:
1774 read_number(o, dst, &d, NULL, NULL);
1775 return o->default_val.dbl == d;
1776 case AV_OPT_TYPE_FLOAT:
1777 read_number(o, dst, &d, NULL, NULL);
1778 f = o->default_val.dbl;
1781 case AV_OPT_TYPE_RATIONAL:
1782 q = av_d2q(o->default_val.dbl, INT_MAX);
1783 return !av_cmp_q(*(AVRational*)dst, q);
1784 case AV_OPT_TYPE_BINARY: {
1789 int opt_size = *(int *)((void **)dst + 1);
1790 void *opt_ptr = *(void **)dst;
1791 if (!opt_size && (!o->default_val.str || !strlen(o->default_val.str)))
1793 if (!opt_size || !o->default_val.str || !strlen(o->default_val.str ))
1795 if (opt_size != strlen(o->default_val.str) / 2)
1797 ret = set_string_binary(NULL, NULL, o->default_val.str, &tmp.data);
1799 ret = !memcmp(opt_ptr, tmp.data, tmp.size);
1803 case AV_OPT_TYPE_DICT:
1804 /* Binary and dict have not default support yet. Any pointer is not default. */
1805 return !!(*(void **)dst);
1806 case AV_OPT_TYPE_IMAGE_SIZE:
1807 if (!o->default_val.str || !strcmp(o->default_val.str, "none"))
1809 else if ((ret = av_parse_video_size(&w, &h, o->default_val.str)) < 0)
1811 return (w == *(int *)dst) && (h == *((int *)dst+1));
1812 case AV_OPT_TYPE_VIDEO_RATE:
1813 q = (AVRational){0, 0};
1814 if (o->default_val.str) {
1815 if ((ret = av_parse_video_rate(&q, o->default_val.str)) < 0)
1818 return !av_cmp_q(*(AVRational*)dst, q);
1819 case AV_OPT_TYPE_COLOR: {
1820 uint8_t color[4] = {0, 0, 0, 0};
1821 if (o->default_val.str) {
1822 if ((ret = av_parse_color(color, o->default_val.str, -1, NULL)) < 0)
1825 return !memcmp(color, dst, sizeof(color));
1828 av_log(obj, AV_LOG_WARNING, "Not supported option type: %d, option name: %s\n", o->type, o->name);
1831 return AVERROR_PATCHWELCOME;
1834 int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags)
1839 return AVERROR(EINVAL);
1840 o = av_opt_find2(obj, name, NULL, 0, search_flags, &target);
1842 return AVERROR_OPTION_NOT_FOUND;
1843 return av_opt_is_set_to_default(target, o);
1846 int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer,
1847 const char key_val_sep, const char pairs_sep)
1849 const AVOption *o = NULL;
1853 const char special_chars[] = {pairs_sep, key_val_sep, '\0'};
1855 if (pairs_sep == '\0' || key_val_sep == '\0' || pairs_sep == key_val_sep ||
1856 pairs_sep == '\\' || key_val_sep == '\\') {
1857 av_log(obj, AV_LOG_ERROR, "Invalid separator(s) found.");
1858 return AVERROR(EINVAL);
1861 if (!obj || !buffer)
1862 return AVERROR(EINVAL);
1865 av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED);
1867 while (o = av_opt_next(obj, o)) {
1868 if (o->type == AV_OPT_TYPE_CONST)
1870 if ((flags & AV_OPT_SERIALIZE_OPT_FLAGS_EXACT) && o->flags != opt_flags)
1872 else if (((o->flags & opt_flags) != opt_flags))
1874 if (flags & AV_OPT_SERIALIZE_SKIP_DEFAULTS && av_opt_is_set_to_default(obj, o) > 0)
1876 if ((ret = av_opt_get(obj, o->name, 0, &buf)) < 0) {
1877 av_bprint_finalize(&bprint, NULL);
1882 av_bprint_append_data(&bprint, &pairs_sep, 1);
1883 av_bprint_escape(&bprint, o->name, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
1884 av_bprint_append_data(&bprint, &key_val_sep, 1);
1885 av_bprint_escape(&bprint, buf, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
1889 av_bprint_finalize(&bprint, buffer);
1895 typedef struct TestContext
1897 const AVClass *class;
1902 AVRational rational;
1903 AVRational video_rate;
1905 enum AVPixelFormat pix_fmt;
1906 enum AVSampleFormat sample_fmt;
1909 int64_t channel_layout;
1922 #define OFFSET(x) offsetof(TestContext, x)
1924 #define TEST_FLAG_COOL 01
1925 #define TEST_FLAG_LAME 02
1926 #define TEST_FLAG_MU 04
1928 static const AVOption test_options[]= {
1929 {"num", "set num", OFFSET(num), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100 },
1930 {"toggle", "set toggle", OFFSET(toggle), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1 },
1931 {"rational", "set rational", OFFSET(rational), AV_OPT_TYPE_RATIONAL, {.dbl = 1}, 0, 10 },
1932 {"string", "set string", OFFSET(string), AV_OPT_TYPE_STRING, {.str = "default"}, CHAR_MIN, CHAR_MAX },
1933 {"escape", "set escape str", OFFSET(escape), AV_OPT_TYPE_STRING, {.str = "\\=,"}, CHAR_MIN, CHAR_MAX },
1934 {"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 1}, 0, INT_MAX, 0, "flags" },
1935 {"cool", "set cool flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_COOL}, INT_MIN, INT_MAX, 0, "flags" },
1936 {"lame", "set lame flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_LAME}, INT_MIN, INT_MAX, 0, "flags" },
1937 {"mu", "set mu flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_MU}, INT_MIN, INT_MAX, 0, "flags" },
1938 {"size", "set size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE,{.str="200x300"}, 0, 0 },
1939 {"pix_fmt", "set pixfmt", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_0BGR}, -1, INT_MAX},
1940 {"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64 = AV_SAMPLE_FMT_S16}, -1, INT_MAX},
1941 {"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0 },
1942 {"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 1000}, 0, INT64_MAX},
1943 {"color", "set color", OFFSET(color), AV_OPT_TYPE_COLOR, {.str = "pink"}, 0, 0},
1944 {"cl", "set channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64 = AV_CH_LAYOUT_HEXAGONAL}, 0, INT64_MAX},
1945 {"bin", "set binary value", OFFSET(binary), AV_OPT_TYPE_BINARY, {.str="62696e00"}, 0, 0 },
1946 {"bin1", "set binary value", OFFSET(binary1), AV_OPT_TYPE_BINARY, {.str=NULL}, 0, 0 },
1947 {"bin2", "set binary value", OFFSET(binary2), AV_OPT_TYPE_BINARY, {.str=""}, 0, 0 },
1948 {"num64", "set num 64bit", OFFSET(num64), AV_OPT_TYPE_INT64, {.i64 = 1}, 0, 100 },
1949 {"flt", "set float", OFFSET(flt), AV_OPT_TYPE_FLOAT, {.dbl = 1.0/3}, 0, 100 },
1950 {"dbl", "set double", OFFSET(dbl), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0/3}, 0, 100 },
1954 static const char *test_get_name(void *ctx)
1959 static const AVClass test_class = {
1969 printf("Testing default values\n");
1971 TestContext test_ctx = { 0 };
1972 test_ctx.class = &test_class;
1973 av_opt_set_defaults(&test_ctx);
1975 printf("num=%d\n", test_ctx.num);
1976 printf("toggle=%d\n", test_ctx.toggle);
1977 printf("string=%s\n", test_ctx.string);
1978 printf("escape=%s\n", test_ctx.escape);
1979 printf("flags=%d\n", test_ctx.flags);
1980 printf("rational=%d/%d\n", test_ctx.rational.num, test_ctx.rational.den);
1981 printf("video_rate=%d/%d\n", test_ctx.video_rate.num, test_ctx.video_rate.den);
1982 printf("width=%d height=%d\n", test_ctx.w, test_ctx.h);
1983 printf("pix_fmt=%s\n", av_get_pix_fmt_name(test_ctx.pix_fmt));
1984 printf("sample_fmt=%s\n", av_get_sample_fmt_name(test_ctx.sample_fmt));
1985 printf("duration=%"PRId64"\n", test_ctx.duration);
1986 printf("color=%d %d %d %d\n", test_ctx.color[0], test_ctx.color[1], test_ctx.color[2], test_ctx.color[3]);
1987 printf("channel_layout=%"PRId64"=%"PRId64"\n", test_ctx.channel_layout, (int64_t)AV_CH_LAYOUT_HEXAGONAL);
1988 if (test_ctx.binary)
1989 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]);
1990 printf("binary_size=%d\n", test_ctx.binary_size);
1991 printf("num64=%"PRId64"\n", test_ctx.num64);
1992 printf("flt=%.6f\n", test_ctx.flt);
1993 printf("dbl=%.6f\n", test_ctx.dbl);
1994 av_opt_free(&test_ctx);
1997 printf("\nTesting av_opt_is_set_to_default()\n");
2000 TestContext test_ctx = { 0 };
2001 const AVOption *o = NULL;
2002 test_ctx.class = &test_class;
2004 av_log_set_level(AV_LOG_QUIET);
2006 while (o = av_opt_next(&test_ctx, o)) {
2007 ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0);
2008 printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : "");
2010 av_opt_set_defaults(&test_ctx);
2011 while (o = av_opt_next(&test_ctx, o)) {
2012 ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0);
2013 printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : "");
2015 av_opt_free(&test_ctx);
2018 printf("\nTest av_opt_serialize()\n");
2020 TestContext test_ctx = { 0 };
2022 test_ctx.class = &test_class;
2024 av_log_set_level(AV_LOG_QUIET);
2026 av_opt_set_defaults(&test_ctx);
2027 if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) {
2028 printf("%s\n", buf);
2029 av_opt_free(&test_ctx);
2030 memset(&test_ctx, 0, sizeof(test_ctx));
2031 test_ctx.class = &test_class;
2032 av_set_options_string(&test_ctx, buf, "=", ",");
2034 if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) {
2035 printf("%s\n", buf);
2039 av_opt_free(&test_ctx);
2042 printf("\nTesting av_set_options_string()\n");
2044 TestContext test_ctx = { 0 };
2045 static const char * const options[] = {
2061 "flags=+mu-lame : num=42: toggle=0",
2062 "num=42 : string=blahblah",
2063 "rational=0 : rational=1/2 : rational=1/-1",
2076 "video_rate=30000/1001",
2077 "video_rate=30/1.001",
2081 "duration=1\\:23\\:45.67",
2085 "cl=stereo+downmix",
2107 test_ctx.class = &test_class;
2108 av_opt_set_defaults(&test_ctx);
2110 av_log_set_level(AV_LOG_QUIET);
2112 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
2113 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
2114 if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
2115 printf("Error '%s'\n", options[i]);
2117 printf("OK '%s'\n", options[i]);
2119 av_opt_free(&test_ctx);
2122 printf("\nTesting av_opt_set_from_string()\n");
2124 TestContext test_ctx = { 0 };
2125 static const char * const options[] = {
2133 " 5 : hello : size = pal ",
2134 "a_very_long_option_name_that_will_need_to_be_ellipsized_around_here=42"
2136 static const char * const shorthand[] = { "num", "string", NULL };
2138 test_ctx.class = &test_class;
2139 av_opt_set_defaults(&test_ctx);
2141 av_log_set_level(AV_LOG_QUIET);
2143 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
2144 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
2145 if (av_opt_set_from_string(&test_ctx, options[i], shorthand, "=", ":") < 0)
2146 printf("Error '%s'\n", options[i]);
2148 printf("OK '%s'\n", options[i]);
2150 av_opt_free(&test_ctx);