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 //FIXME order them and do a bin search
45 const AVOption *av_find_opt(void *v, const char *name, const char *unit, int mask, int flags)
47 const AVOption *o = NULL;
49 while ((o = av_next_option(v, o))) {
50 if (!strcmp(o->name, name) && (!unit || (o->unit && !strcmp(o->unit, unit))) && (o->flags & mask) == flags)
57 #if FF_API_OLD_AVOPTIONS
58 const AVOption *av_next_option(void *obj, const AVOption *last)
60 return av_opt_next(obj, last);
64 const AVOption *av_opt_next(void *obj, const AVOption *last)
66 AVClass *class = *(AVClass**)obj;
67 if (!last && class && class->option && class->option[0].name)
69 if (last && last[1].name)
74 static int read_number(const AVOption *o, void *dst, double *num, int *den, int64_t *intnum)
77 case AV_OPT_TYPE_FLAGS: *intnum = *(unsigned int*)dst;return 0;
78 case AV_OPT_TYPE_PIXEL_FMT:
79 case AV_OPT_TYPE_SAMPLE_FMT:
80 case AV_OPT_TYPE_INT: *intnum = *(int *)dst;return 0;
81 case AV_OPT_TYPE_CHANNEL_LAYOUT:
82 case AV_OPT_TYPE_DURATION:
83 case AV_OPT_TYPE_INT64: *intnum = *(int64_t *)dst;return 0;
84 case AV_OPT_TYPE_FLOAT: *num = *(float *)dst;return 0;
85 case AV_OPT_TYPE_DOUBLE: *num = *(double *)dst;return 0;
86 case AV_OPT_TYPE_RATIONAL: *intnum = ((AVRational*)dst)->num;
87 *den = ((AVRational*)dst)->den;
89 case AV_OPT_TYPE_CONST: *num = o->default_val.dbl; return 0;
91 return AVERROR(EINVAL);
94 static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
96 if (o->type != AV_OPT_TYPE_FLAGS &&
97 (o->max * den < num * intnum || o->min * den > num * intnum)) {
98 av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
99 num*intnum/den, o->name, o->min, o->max);
100 return AVERROR(ERANGE);
102 if (o->type == AV_OPT_TYPE_FLAGS) {
103 double d = num*intnum/den;
104 if (d < -1.5 || d > 0xFFFFFFFF+0.5 || (llrint(d*256) & 255)) {
105 av_log(obj, AV_LOG_ERROR,
106 "Value %f for parameter '%s' is not a valid set of 32bit integer flags\n",
107 num*intnum/den, o->name);
108 return AVERROR(ERANGE);
113 case AV_OPT_TYPE_FLAGS:
114 case AV_OPT_TYPE_PIXEL_FMT:
115 case AV_OPT_TYPE_SAMPLE_FMT:
116 case AV_OPT_TYPE_INT: *(int *)dst= llrint(num/den)*intnum; break;
117 case AV_OPT_TYPE_DURATION:
118 case AV_OPT_TYPE_CHANNEL_LAYOUT:
119 case AV_OPT_TYPE_INT64: *(int64_t *)dst= llrint(num/den)*intnum; break;
120 case AV_OPT_TYPE_FLOAT: *(float *)dst= num*intnum/den; break;
121 case AV_OPT_TYPE_DOUBLE:*(double *)dst= num*intnum/den; break;
122 case AV_OPT_TYPE_RATIONAL:
123 if ((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den};
124 else *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
127 return AVERROR(EINVAL);
132 static const double const_values[] = {
139 static const char * const const_names[] = {
146 static int hexchar2int(char c) {
147 if (c >= '0' && c <= '9') return c - '0';
148 if (c >= 'a' && c <= 'f') return c - 'a' + 10;
149 if (c >= 'A' && c <= 'F') return c - 'A' + 10;
153 static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
155 int *lendst = (int *)(dst + 1);
157 int len = strlen(val);
163 return AVERROR(EINVAL);
166 ptr = bin = av_malloc(len);
168 int a = hexchar2int(*val++);
169 int b = hexchar2int(*val++);
170 if (a < 0 || b < 0) {
172 return AVERROR(EINVAL);
174 *ptr++ = (a << 4) | b;
182 static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
185 *dst = av_strdup(val);
189 #define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
190 opt->type == AV_OPT_TYPE_CONST || \
191 opt->type == AV_OPT_TYPE_FLAGS || \
192 opt->type == AV_OPT_TYPE_INT) ? \
193 opt->default_val.i64 : opt->default_val.dbl)
195 static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
197 int ret = 0, notfirst = 0;
206 if (*val == '+' || *val == '-') {
207 if (o->type == AV_OPT_TYPE_FLAGS)
213 for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
218 const AVOption *o_named = av_opt_find(target_obj, buf, o->unit, 0, 0);
219 if (o_named && o_named->type == AV_OPT_TYPE_CONST)
220 d = DEFAULT_NUMVAL(o_named);
221 else if (!strcmp(buf, "default")) d = DEFAULT_NUMVAL(o);
222 else if (!strcmp(buf, "max" )) d = o->max;
223 else if (!strcmp(buf, "min" )) d = o->min;
224 else if (!strcmp(buf, "none" )) d = 0;
225 else if (!strcmp(buf, "all" )) d = ~0;
227 int res = av_expr_parse_and_eval(&d, buf, const_names, const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
229 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
234 if (o->type == AV_OPT_TYPE_FLAGS) {
235 read_number(o, dst, NULL, NULL, &intnum);
236 if (cmd == '+') d = intnum | (int64_t)d;
237 else if (cmd == '-') d = intnum &~(int64_t)d;
239 read_number(o, dst, &num, &den, &intnum);
240 if (cmd == '+') d = notfirst*num*intnum/den + d;
241 else if (cmd == '-') d = notfirst*num*intnum/den - d;
244 if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
255 static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst)
259 if (!val || !strcmp(val, "none")) {
264 ret = av_parse_video_size(dst, dst + 1, val);
266 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
270 static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst)
274 ret = AVERROR(EINVAL);
276 ret = av_parse_video_rate(dst, val);
279 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
283 static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst)
290 ret = av_parse_color(dst, val, -1, obj);
292 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val);
298 #if FF_API_OLD_AVOPTIONS
299 int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out)
301 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
304 return av_opt_set(obj, name, val, 0);
308 int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
311 void *dst, *target_obj;
312 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
313 if (!o || !target_obj)
314 return AVERROR_OPTION_NOT_FOUND;
315 if (!val && (o->type != AV_OPT_TYPE_STRING &&
316 o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
317 o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE &&
318 o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR &&
319 o->type != AV_OPT_TYPE_CHANNEL_LAYOUT))
320 return AVERROR(EINVAL);
322 dst = ((uint8_t*)target_obj) + o->offset;
324 case AV_OPT_TYPE_STRING: return set_string(obj, o, val, dst);
325 case AV_OPT_TYPE_BINARY: return set_string_binary(obj, o, val, dst);
326 case AV_OPT_TYPE_FLAGS:
327 case AV_OPT_TYPE_INT:
328 case AV_OPT_TYPE_INT64:
329 case AV_OPT_TYPE_FLOAT:
330 case AV_OPT_TYPE_DOUBLE:
331 case AV_OPT_TYPE_RATIONAL: return set_string_number(obj, target_obj, o, val, dst);
332 case AV_OPT_TYPE_IMAGE_SIZE: return set_string_image_size(obj, o, val, dst);
333 case AV_OPT_TYPE_VIDEO_RATE: return set_string_video_rate(obj, o, val, dst);
334 case AV_OPT_TYPE_PIXEL_FMT:
335 if (!val || !strcmp(val, "none")) {
336 ret = AV_PIX_FMT_NONE;
338 ret = av_get_pix_fmt(val);
339 if (ret == AV_PIX_FMT_NONE) {
341 ret = strtol(val, &tail, 0);
342 if (*tail || (unsigned)ret >= AV_PIX_FMT_NB) {
343 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as pixel format\n", val);
344 return AVERROR(EINVAL);
348 *(enum AVPixelFormat *)dst = ret;
350 case AV_OPT_TYPE_SAMPLE_FMT:
351 if (!val || !strcmp(val, "none")) {
352 ret = AV_SAMPLE_FMT_NONE;
354 ret = av_get_sample_fmt(val);
355 if (ret == AV_SAMPLE_FMT_NONE) {
357 ret = strtol(val, &tail, 0);
358 if (*tail || (unsigned)ret >= AV_SAMPLE_FMT_NB) {
359 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as sample format\n", val);
360 return AVERROR(EINVAL);
364 *(enum AVSampleFormat *)dst = ret;
366 case AV_OPT_TYPE_DURATION:
371 if ((ret = av_parse_time(dst, val, 1)) < 0)
372 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val);
376 case AV_OPT_TYPE_COLOR: return set_string_color(obj, o, val, dst);
377 case AV_OPT_TYPE_CHANNEL_LAYOUT:
378 if (!val || !strcmp(val, "none")) {
381 #if FF_API_GET_CHANNEL_LAYOUT_COMPAT
382 int64_t cl = ff_get_channel_layout(val, 0);
384 int64_t cl = av_get_channel_layout(val);
387 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val);
388 ret = AVERROR(EINVAL);
390 *(int64_t *)dst = cl;
396 av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
397 return AVERROR(EINVAL);
400 #define OPT_EVAL_NUMBER(name, opttype, vartype)\
401 int av_opt_eval_ ## name(void *obj, const AVOption *o, const char *val, vartype *name ## _out)\
403 if (!o || o->type != opttype)\
404 return AVERROR(EINVAL);\
405 return set_string_number(obj, obj, o, val, name ## _out);\
408 OPT_EVAL_NUMBER(flags, AV_OPT_TYPE_FLAGS, int)
409 OPT_EVAL_NUMBER(int, AV_OPT_TYPE_INT, int)
410 OPT_EVAL_NUMBER(int64, AV_OPT_TYPE_INT64, int64_t)
411 OPT_EVAL_NUMBER(float, AV_OPT_TYPE_FLOAT, float)
412 OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE, double)
413 OPT_EVAL_NUMBER(q, AV_OPT_TYPE_RATIONAL, AVRational)
415 static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
418 void *dst, *target_obj;
419 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
421 if (!o || !target_obj)
422 return AVERROR_OPTION_NOT_FOUND;
424 dst = ((uint8_t*)target_obj) + o->offset;
425 return write_number(obj, o, dst, num, den, intnum);
428 #if FF_API_OLD_AVOPTIONS
429 const AVOption *av_set_double(void *obj, const char *name, double n)
431 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
432 if (set_number(obj, name, n, 1, 1, 0) < 0)
437 const AVOption *av_set_q(void *obj, const char *name, AVRational n)
439 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
440 if (set_number(obj, name, n.num, n.den, 1, 0) < 0)
445 const AVOption *av_set_int(void *obj, const char *name, int64_t n)
447 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
448 if (set_number(obj, name, 1, 1, n, 0) < 0)
454 int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
456 return set_number(obj, name, 1, 1, val, search_flags);
459 int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
461 return set_number(obj, name, val, 1, 1, search_flags);
464 int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
466 return set_number(obj, name, val.num, val.den, 1, search_flags);
469 int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
472 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
477 if (!o || !target_obj)
478 return AVERROR_OPTION_NOT_FOUND;
480 if (o->type != AV_OPT_TYPE_BINARY)
481 return AVERROR(EINVAL);
483 ptr = len ? av_malloc(len) : NULL;
485 return AVERROR(ENOMEM);
487 dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
488 lendst = (int *)(dst + 1);
494 memcpy(ptr, val, len);
499 int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
502 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
504 if (!o || !target_obj)
505 return AVERROR_OPTION_NOT_FOUND;
506 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
507 av_log(obj, AV_LOG_ERROR,
508 "The value set by option '%s' is not an image size.\n", o->name);
509 return AVERROR(EINVAL);
512 av_log(obj, AV_LOG_ERROR,
513 "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
514 return AVERROR(EINVAL);
516 *(int *)(((uint8_t *)target_obj) + o->offset) = w;
517 *(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h;
521 int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
524 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
526 if (!o || !target_obj)
527 return AVERROR_OPTION_NOT_FOUND;
528 if (o->type != AV_OPT_TYPE_VIDEO_RATE) {
529 av_log(obj, AV_LOG_ERROR,
530 "The value set by option '%s' is not a video rate.\n", o->name);
531 return AVERROR(EINVAL);
533 if (val.num <= 0 || val.den <= 0)
534 return AVERROR(EINVAL);
535 return set_number(obj, name, val.num, val.den, 1, search_flags);
538 static int set_format(void *obj, const char *name, int fmt, int search_flags,
539 enum AVOptionType type, const char *desc, int nb_fmts)
542 const AVOption *o = av_opt_find2(obj, name, NULL, 0,
543 search_flags, &target_obj);
545 const AVClass *class = *(AVClass **)obj;
547 if (!o || !target_obj)
548 return AVERROR_OPTION_NOT_FOUND;
549 if (o->type != type) {
550 av_log(obj, AV_LOG_ERROR,
551 "The value set by option '%s' is not a %s format", name, desc);
552 return AVERROR(EINVAL);
555 #if LIBAVUTIL_VERSION_MAJOR < 54
556 if (class->version && class->version < AV_VERSION_INT(52, 11, 100)) {
562 min = FFMAX(o->min, -1);
563 max = FFMIN(o->max, nb_fmts-1);
565 if (fmt < min || fmt > max) {
566 av_log(obj, AV_LOG_ERROR,
567 "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
568 fmt, name, desc, min, max);
569 return AVERROR(ERANGE);
571 *(int *)(((uint8_t *)target_obj) + o->offset) = fmt;
575 int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
577 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
580 int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
582 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
585 int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, int search_flags)
588 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
590 if (!o || !target_obj)
591 return AVERROR_OPTION_NOT_FOUND;
592 if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
593 av_log(obj, AV_LOG_ERROR,
594 "The value set by option '%s' is not a channel layout.\n", o->name);
595 return AVERROR(EINVAL);
597 *(int *)(((int64_t *)target_obj) + o->offset) = cl;
601 #if FF_API_OLD_AVOPTIONS
604 * @param buf a buffer which is used for returning non string values as strings, can be NULL
605 * @param buf_len allocated length in bytes of buf
607 const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len)
609 const AVOption *o = av_opt_find(obj, name, NULL, 0, AV_OPT_SEARCH_CHILDREN);
615 if (o->type != AV_OPT_TYPE_STRING && (!buf || !buf_len))
618 dst= ((uint8_t*)obj) + o->offset;
619 if (o_out) *o_out= o;
622 case AV_OPT_TYPE_FLAGS: snprintf(buf, buf_len, "0x%08X",*(int *)dst);break;
623 case AV_OPT_TYPE_INT: snprintf(buf, buf_len, "%d" , *(int *)dst);break;
624 case AV_OPT_TYPE_INT64: snprintf(buf, buf_len, "%"PRId64, *(int64_t*)dst);break;
625 case AV_OPT_TYPE_FLOAT: snprintf(buf, buf_len, "%f" , *(float *)dst);break;
626 case AV_OPT_TYPE_DOUBLE: snprintf(buf, buf_len, "%f" , *(double *)dst);break;
627 case AV_OPT_TYPE_RATIONAL: snprintf(buf, buf_len, "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
628 case AV_OPT_TYPE_CONST: snprintf(buf, buf_len, "%f" , o->default_val.dbl);break;
629 case AV_OPT_TYPE_STRING: return *(void**)dst;
630 case AV_OPT_TYPE_BINARY:
631 len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
632 if (len >= (buf_len + 1)/2) return NULL;
633 bin = *(uint8_t**)dst;
634 for (i = 0; i < len; i++) snprintf(buf + i*2, 3, "%02X", bin[i]);
636 default: return NULL;
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_FLAGS: ret = snprintf(buf, sizeof(buf), "0x%08X", *(int *)dst);break;
658 case AV_OPT_TYPE_INT: ret = snprintf(buf, sizeof(buf), "%d" , *(int *)dst);break;
659 case AV_OPT_TYPE_INT64: ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t*)dst);break;
660 case AV_OPT_TYPE_FLOAT: ret = snprintf(buf, sizeof(buf), "%f" , *(float *)dst);break;
661 case AV_OPT_TYPE_DOUBLE: ret = snprintf(buf, sizeof(buf), "%f" , *(double *)dst);break;
662 case AV_OPT_TYPE_VIDEO_RATE:
663 case AV_OPT_TYPE_RATIONAL: ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
664 case AV_OPT_TYPE_CONST: ret = snprintf(buf, sizeof(buf), "%f" , o->default_val.dbl);break;
665 case AV_OPT_TYPE_STRING:
667 *out_val = av_strdup(*(uint8_t**)dst);
669 *out_val = av_strdup("");
671 case AV_OPT_TYPE_BINARY:
672 len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
673 if ((uint64_t)len*2 + 1 > INT_MAX)
674 return AVERROR(EINVAL);
675 if (!(*out_val = av_malloc(len*2 + 1)))
676 return AVERROR(ENOMEM);
677 bin = *(uint8_t**)dst;
678 for (i = 0; i < len; i++)
679 snprintf(*out_val + i*2, 3, "%02X", bin[i]);
681 case AV_OPT_TYPE_IMAGE_SIZE:
682 ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
684 case AV_OPT_TYPE_PIXEL_FMT:
685 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
687 case AV_OPT_TYPE_SAMPLE_FMT:
688 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
690 case AV_OPT_TYPE_DURATION:
691 i64 = *(int64_t *)dst;
692 ret = snprintf(buf, sizeof(buf), "%"PRIi64"d:%02d:%02d.%06d",
693 i64 / 3600000000, (int)((i64 / 60000000) % 60),
694 (int)((i64 / 1000000) % 60), (int)(i64 % 1000000));
696 case AV_OPT_TYPE_COLOR:
697 ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x", ((int *)dst)[0], ((int *)dst)[1], ((int *)dst)[2], ((int *)dst)[3]);
699 case AV_OPT_TYPE_CHANNEL_LAYOUT:
700 i64 = *(int64_t *)dst;
701 ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64);
704 return AVERROR(EINVAL);
707 if (ret >= sizeof(buf))
708 return AVERROR(EINVAL);
709 *out_val = av_strdup(buf);
713 static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum,
716 void *dst, *target_obj;
717 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
718 if (!o || !target_obj)
721 dst = ((uint8_t*)target_obj) + o->offset;
723 if (o_out) *o_out= o;
725 return read_number(o, dst, num, den, intnum);
732 #if FF_API_OLD_AVOPTIONS
733 double av_get_double(void *obj, const char *name, const AVOption **o_out)
739 if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
741 return num*intnum/den;
744 AVRational av_get_q(void *obj, const char *name, const AVOption **o_out)
750 if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
751 return (AVRational){0, 0};
752 if (num == 1.0 && (int)intnum == intnum)
753 return (AVRational){intnum, den};
755 return av_d2q(num*intnum/den, 1<<24);
758 int64_t av_get_int(void *obj, const char *name, const AVOption **o_out)
764 if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
766 return num*intnum/den;
770 int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
776 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
778 *out_val = num*intnum/den;
782 int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
788 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
790 *out_val = num*intnum/den;
794 int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
800 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
803 if (num == 1.0 && (int)intnum == intnum)
804 *out_val = (AVRational){intnum, den};
806 *out_val = av_d2q(num*intnum/den, 1<<24);
810 int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
812 void *dst, *target_obj;
813 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
814 if (!o || !target_obj)
815 return AVERROR_OPTION_NOT_FOUND;
816 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
817 av_log(obj, AV_LOG_ERROR,
818 "The value for option '%s' is not an image size.\n", name);
819 return AVERROR(EINVAL);
822 dst = ((uint8_t*)target_obj) + o->offset;
823 if (w_out) *w_out = *(int *)dst;
824 if (h_out) *h_out = *((int *)dst+1);
828 int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
834 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
837 if (num == 1.0 && (int)intnum == intnum)
838 *out_val = (AVRational){intnum, den};
840 *out_val = av_d2q(num*intnum/den, 1<<24);
844 static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
845 enum AVOptionType type, const char *desc)
847 void *dst, *target_obj;
848 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
849 if (!o || !target_obj)
850 return AVERROR_OPTION_NOT_FOUND;
851 if (o->type != type) {
852 av_log(obj, AV_LOG_ERROR,
853 "The value for option '%s' is not a %s format.\n", desc, name);
854 return AVERROR(EINVAL);
857 dst = ((uint8_t*)target_obj) + o->offset;
858 *out_fmt = *(int *)dst;
862 int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
864 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
867 int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
869 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
872 int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl)
874 void *dst, *target_obj;
875 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
876 if (!o || !target_obj)
877 return AVERROR_OPTION_NOT_FOUND;
878 if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
879 av_log(obj, AV_LOG_ERROR,
880 "The value for option '%s' is not a channel layout.\n", name);
881 return AVERROR(EINVAL);
884 dst = ((uint8_t*)target_obj) + o->offset;
885 *cl = *(int64_t *)dst;
889 int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
891 const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
892 const AVOption *flag = av_opt_find(obj, flag_name,
893 field ? field->unit : NULL, 0, 0);
896 if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
897 av_opt_get_int(obj, field_name, 0, &res) < 0)
899 return res & flag->default_val.i64;
902 static void log_value(void *av_log_obj, int level, double d)
905 av_log(av_log_obj, level, "INT_MAX");
906 } else if (d == INT_MIN) {
907 av_log(av_log_obj, level, "INT_MIN");
908 } else if (d == (double)INT64_MAX) {
909 av_log(av_log_obj, level, "I64_MAX");
910 } else if (d == INT64_MIN) {
911 av_log(av_log_obj, level, "I64_MIN");
912 } else if (d == FLT_MAX) {
913 av_log(av_log_obj, level, "FLT_MAX");
914 } else if (d == FLT_MIN) {
915 av_log(av_log_obj, level, "FLT_MIN");
917 av_log(av_log_obj, level, "%g", d);
921 static void opt_list(void *obj, void *av_log_obj, const char *unit,
922 int req_flags, int rej_flags)
924 const AVOption *opt=NULL;
928 while ((opt = av_opt_next(obj, opt))) {
929 if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
932 /* Don't print CONST's on level one.
933 * Don't print anything but CONST's on level two.
934 * Only print items from the requested unit.
936 if (!unit && opt->type==AV_OPT_TYPE_CONST)
938 else if (unit && opt->type!=AV_OPT_TYPE_CONST)
940 else if (unit && opt->type==AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
942 else if (unit && opt->type == AV_OPT_TYPE_CONST)
943 av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name);
945 av_log(av_log_obj, AV_LOG_INFO, " %s%-17s ",
946 (opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-",
950 case AV_OPT_TYPE_FLAGS:
951 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>");
953 case AV_OPT_TYPE_INT:
954 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>");
956 case AV_OPT_TYPE_INT64:
957 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>");
959 case AV_OPT_TYPE_DOUBLE:
960 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>");
962 case AV_OPT_TYPE_FLOAT:
963 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>");
965 case AV_OPT_TYPE_STRING:
966 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>");
968 case AV_OPT_TYPE_RATIONAL:
969 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>");
971 case AV_OPT_TYPE_BINARY:
972 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>");
974 case AV_OPT_TYPE_IMAGE_SIZE:
975 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
977 case AV_OPT_TYPE_VIDEO_RATE:
978 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
980 case AV_OPT_TYPE_PIXEL_FMT:
981 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
983 case AV_OPT_TYPE_SAMPLE_FMT:
984 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>");
986 case AV_OPT_TYPE_DURATION:
987 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>");
989 case AV_OPT_TYPE_COLOR:
990 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>");
992 case AV_OPT_TYPE_CHANNEL_LAYOUT:
993 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>");
995 case AV_OPT_TYPE_CONST:
997 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
1000 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
1001 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
1002 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_FILTERING_PARAM)? 'F' : '.');
1003 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.');
1004 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
1005 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
1008 av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
1010 if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) {
1011 switch (opt->type) {
1012 case AV_OPT_TYPE_INT:
1013 case AV_OPT_TYPE_INT64:
1014 case AV_OPT_TYPE_DOUBLE:
1015 case AV_OPT_TYPE_FLOAT:
1016 case AV_OPT_TYPE_RATIONAL:
1017 for (i = 0; i < r->nb_ranges; i++) {
1018 av_log(av_log_obj, AV_LOG_INFO, " (from ");
1019 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
1020 av_log(av_log_obj, AV_LOG_INFO, " to ");
1021 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
1022 av_log(av_log_obj, AV_LOG_INFO, ")");
1026 av_opt_freep_ranges(&r);
1029 if (opt->type != AV_OPT_TYPE_CONST &&
1030 opt->type != AV_OPT_TYPE_BINARY &&
1031 !((opt->type == AV_OPT_TYPE_COLOR ||
1032 opt->type == AV_OPT_TYPE_IMAGE_SIZE ||
1033 opt->type == AV_OPT_TYPE_STRING ||
1034 opt->type == AV_OPT_TYPE_VIDEO_RATE) &&
1035 !opt->default_val.str)) {
1036 av_log(av_log_obj, AV_LOG_INFO, " (default ");
1037 switch (opt->type) {
1038 case AV_OPT_TYPE_FLAGS:
1039 av_log(av_log_obj, AV_LOG_INFO, "%"PRIX64, opt->default_val.i64);
1041 case AV_OPT_TYPE_DURATION:
1042 case AV_OPT_TYPE_INT:
1043 case AV_OPT_TYPE_INT64:
1044 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.i64);
1046 case AV_OPT_TYPE_DOUBLE:
1047 case AV_OPT_TYPE_FLOAT:
1048 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.dbl);
1050 case AV_OPT_TYPE_RATIONAL: {
1051 AVRational q = av_d2q(opt->default_val.dbl, INT_MAX);
1052 av_log(av_log_obj, AV_LOG_INFO, "%d/%d", q.num, q.den); }
1054 case AV_OPT_TYPE_PIXEL_FMT:
1055 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(opt->default_val.i64), "none"));
1057 case AV_OPT_TYPE_SAMPLE_FMT:
1058 av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(opt->default_val.i64), "none"));
1060 case AV_OPT_TYPE_COLOR:
1061 case AV_OPT_TYPE_IMAGE_SIZE:
1062 case AV_OPT_TYPE_STRING:
1063 case AV_OPT_TYPE_VIDEO_RATE:
1064 av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str);
1066 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1067 av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64);
1070 av_log(av_log_obj, AV_LOG_INFO, ")");
1073 av_log(av_log_obj, AV_LOG_INFO, "\n");
1074 if (opt->unit && opt->type != AV_OPT_TYPE_CONST) {
1075 opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
1080 int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
1085 av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
1087 opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
1092 void av_opt_set_defaults(void *s)
1094 #if FF_API_OLD_AVOPTIONS
1095 av_opt_set_defaults2(s, 0, 0);
1098 void av_opt_set_defaults2(void *s, int mask, int flags)
1101 const AVClass *class = *(AVClass **)s;
1102 const AVOption *opt = NULL;
1103 while ((opt = av_opt_next(s, opt)) != NULL) {
1104 void *dst = ((uint8_t*)s) + opt->offset;
1105 #if FF_API_OLD_AVOPTIONS
1106 if ((opt->flags & mask) != flags)
1109 switch (opt->type) {
1110 case AV_OPT_TYPE_CONST:
1111 /* Nothing to be done here */
1113 case AV_OPT_TYPE_FLAGS:
1114 case AV_OPT_TYPE_INT:
1115 case AV_OPT_TYPE_INT64:
1116 case AV_OPT_TYPE_DURATION:
1117 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1118 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1120 case AV_OPT_TYPE_DOUBLE:
1121 case AV_OPT_TYPE_FLOAT: {
1123 val = opt->default_val.dbl;
1124 write_number(s, opt, dst, val, 1, 1);
1127 case AV_OPT_TYPE_RATIONAL: {
1129 val = av_d2q(opt->default_val.dbl, INT_MAX);
1130 write_number(s, opt, dst, 1, val.den, val.num);
1133 case AV_OPT_TYPE_COLOR:
1134 set_string_color(s, opt, opt->default_val.str, dst);
1136 case AV_OPT_TYPE_STRING:
1137 set_string(s, opt, opt->default_val.str, dst);
1139 case AV_OPT_TYPE_IMAGE_SIZE:
1140 set_string_image_size(s, opt, opt->default_val.str, dst);
1142 case AV_OPT_TYPE_VIDEO_RATE:
1143 set_string_video_rate(s, opt, opt->default_val.str, dst);
1145 case AV_OPT_TYPE_PIXEL_FMT:
1146 #if LIBAVUTIL_VERSION_MAJOR < 54
1147 if (class->version && class->version < AV_VERSION_INT(52, 10, 100))
1148 av_opt_set(s, opt->name, opt->default_val.str, 0);
1151 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1153 case AV_OPT_TYPE_SAMPLE_FMT:
1154 #if LIBAVUTIL_VERSION_MAJOR < 54
1155 if (class->version && class->version < AV_VERSION_INT(52, 10, 100))
1156 av_opt_set(s, opt->name, opt->default_val.str, 0);
1159 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1161 case AV_OPT_TYPE_BINARY:
1162 /* Cannot set default for binary */
1165 av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
1171 * Store the value in the field in ctx that is named like key.
1172 * ctx must be an AVClass context, storing is done using AVOptions.
1174 * @param buf the string to parse, buf will be updated to point at the
1175 * separator just after the parsed key/value pair
1176 * @param key_val_sep a 0-terminated list of characters used to
1177 * separate key from value
1178 * @param pairs_sep a 0-terminated list of characters used to separate
1179 * two pairs from each other
1180 * @return 0 if the key/value pair has been successfully parsed and
1181 * set, or a negative value corresponding to an AVERROR code in case
1183 * AVERROR(EINVAL) if the key/value pair cannot be parsed,
1184 * the error code issued by av_opt_set() if the key/value pair
1187 static int parse_key_value_pair(void *ctx, const char **buf,
1188 const char *key_val_sep, const char *pairs_sep)
1190 char *key = av_get_token(buf, key_val_sep);
1195 return AVERROR(ENOMEM);
1197 if (*key && strspn(*buf, key_val_sep)) {
1199 val = av_get_token(buf, pairs_sep);
1202 return AVERROR(ENOMEM);
1205 av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
1207 return AVERROR(EINVAL);
1210 av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val);
1212 ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN);
1213 if (ret == AVERROR_OPTION_NOT_FOUND)
1214 av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
1221 int av_set_options_string(void *ctx, const char *opts,
1222 const char *key_val_sep, const char *pairs_sep)
1230 if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
1241 #define WHITESPACES " \n\t"
1243 static int is_key_char(char c)
1245 return (unsigned)((c | 32) - 'a') < 26 ||
1246 (unsigned)(c - '0') < 10 ||
1247 c == '-' || c == '_' || c == '/' || c == '.';
1251 * Read a key from a string.
1253 * The key consists of is_key_char characters and must be terminated by a
1254 * character from the delim string; spaces are ignored.
1256 * @return 0 for success (even with ellipsis), <0 for failure
1258 static int get_key(const char **ropts, const char *delim, char **rkey)
1260 const char *opts = *ropts;
1261 const char *key_start, *key_end;
1263 key_start = opts += strspn(opts, WHITESPACES);
1264 while (is_key_char(*opts))
1267 opts += strspn(opts, WHITESPACES);
1268 if (!*opts || !strchr(delim, *opts))
1269 return AVERROR(EINVAL);
1271 if (!(*rkey = av_malloc(key_end - key_start + 1)))
1272 return AVERROR(ENOMEM);
1273 memcpy(*rkey, key_start, key_end - key_start);
1274 (*rkey)[key_end - key_start] = 0;
1279 int av_opt_get_key_value(const char **ropts,
1280 const char *key_val_sep, const char *pairs_sep,
1282 char **rkey, char **rval)
1285 char *key = NULL, *val;
1286 const char *opts = *ropts;
1288 if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
1289 !(flags & AV_OPT_FLAG_IMPLICIT_KEY))
1290 return AVERROR(EINVAL);
1291 if (!(val = av_get_token(&opts, pairs_sep))) {
1293 return AVERROR(ENOMEM);
1301 int av_opt_set_from_string(void *ctx, const char *opts,
1302 const char *const *shorthand,
1303 const char *key_val_sep, const char *pairs_sep)
1306 const char *dummy_shorthand = NULL;
1307 char *av_uninit(parsed_key), *av_uninit(value);
1313 shorthand = &dummy_shorthand;
1316 ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
1317 *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
1318 &parsed_key, &value);
1320 if (ret == AVERROR(EINVAL))
1321 av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts);
1323 av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts,
1331 while (*shorthand) /* discard all remaining shorthand */
1334 key = *(shorthand++);
1337 av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
1338 if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
1339 if (ret == AVERROR_OPTION_NOT_FOUND)
1340 av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
1342 av_free(parsed_key);
1347 av_free(parsed_key);
1353 void av_opt_free(void *obj)
1355 const AVOption *o = NULL;
1356 while ((o = av_opt_next(obj, o)))
1357 if (o->type == AV_OPT_TYPE_STRING || o->type == AV_OPT_TYPE_BINARY)
1358 av_freep((uint8_t *)obj + o->offset);
1361 int av_opt_set_dict(void *obj, AVDictionary **options)
1363 AVDictionaryEntry *t = NULL;
1364 AVDictionary *tmp = NULL;
1367 while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
1368 ret = av_opt_set(obj, t->key, t->value, 0);
1369 if (ret == AVERROR_OPTION_NOT_FOUND)
1370 av_dict_set(&tmp, t->key, t->value, 0);
1372 av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
1377 av_dict_free(options);
1382 const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
1383 int opt_flags, int search_flags)
1385 return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
1388 const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
1389 int opt_flags, int search_flags, void **target_obj)
1392 const AVOption *o = NULL;
1402 if (search_flags & AV_OPT_SEARCH_CHILDREN) {
1403 if (search_flags & AV_OPT_SEARCH_FAKE_OBJ) {
1404 const AVClass *child = NULL;
1405 while (child = av_opt_child_class_next(c, child))
1406 if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL))
1410 while (child = av_opt_child_next(obj, child))
1411 if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
1416 while (o = av_opt_next(obj, o)) {
1417 if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
1418 ((!unit && o->type != AV_OPT_TYPE_CONST) ||
1419 (unit && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) {
1421 if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ))
1432 void *av_opt_child_next(void *obj, void *prev)
1434 const AVClass *c = *(AVClass**)obj;
1436 return c->child_next(obj, prev);
1440 const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
1442 if (parent->child_class_next)
1443 return parent->child_class_next(prev);
1447 void *av_opt_ptr(const AVClass *class, void *obj, const char *name)
1449 const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL);
1452 return (uint8_t*)obj + opt->offset;
1455 int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1457 const AVClass *c = *(AVClass**)obj;
1458 int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL;
1460 if (c->version > (52 << 16 | 11 << 8))
1461 callback = c->query_ranges;
1464 callback = av_opt_query_ranges_default;
1466 return callback(ranges_arg, obj, key, flags);
1469 int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1471 AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
1472 AVOptionRange **range_array = av_mallocz(sizeof(void*));
1473 AVOptionRange *range = av_mallocz(sizeof(*range));
1474 const AVOption *field = av_opt_find(obj, key, NULL, 0, flags);
1479 if (!ranges || !range || !range_array || !field) {
1480 ret = AVERROR(ENOMEM);
1484 ranges->range = range_array;
1485 ranges->range[0] = range;
1486 ranges->nb_ranges = 1;
1487 range->is_range = 1;
1488 range->value_min = field->min;
1489 range->value_max = field->max;
1491 switch (field->type) {
1492 case AV_OPT_TYPE_INT:
1493 case AV_OPT_TYPE_INT64:
1494 case AV_OPT_TYPE_PIXEL_FMT:
1495 case AV_OPT_TYPE_SAMPLE_FMT:
1496 case AV_OPT_TYPE_FLOAT:
1497 case AV_OPT_TYPE_DOUBLE:
1498 case AV_OPT_TYPE_DURATION:
1499 case AV_OPT_TYPE_COLOR:
1500 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1502 case AV_OPT_TYPE_STRING:
1503 range->component_min = 0;
1504 range->component_max = 0x10FFFF; // max unicode value
1505 range->value_min = -1;
1506 range->value_max = INT_MAX;
1508 case AV_OPT_TYPE_RATIONAL:
1509 range->component_min = INT_MIN;
1510 range->component_max = INT_MAX;
1512 case AV_OPT_TYPE_IMAGE_SIZE:
1513 range->component_min = 0;
1514 range->component_max = INT_MAX/128/8;
1515 range->value_min = 0;
1516 range->value_max = INT_MAX/8;
1518 case AV_OPT_TYPE_VIDEO_RATE:
1519 range->component_min = 1;
1520 range->component_max = INT_MAX;
1521 range->value_min = 1;
1522 range->value_max = INT_MAX;
1525 ret = AVERROR(ENOSYS);
1529 *ranges_arg = ranges;
1534 av_free(range_array);
1538 void av_opt_freep_ranges(AVOptionRanges **rangesp)
1541 AVOptionRanges *ranges = *rangesp;
1543 for (i = 0; i < ranges->nb_ranges; i++) {
1544 AVOptionRange *range = ranges->range[i];
1545 av_freep(&range->str);
1546 av_freep(&ranges->range[i]);
1548 av_freep(&ranges->range);
1554 typedef struct TestContext
1556 const AVClass *class;
1561 AVRational rational;
1562 AVRational video_rate;
1564 enum AVPixelFormat pix_fmt;
1565 enum AVSampleFormat sample_fmt;
1568 int64_t channel_layout;
1571 #define OFFSET(x) offsetof(TestContext, x)
1573 #define TEST_FLAG_COOL 01
1574 #define TEST_FLAG_LAME 02
1575 #define TEST_FLAG_MU 04
1577 static const AVOption test_options[]= {
1578 {"num", "set num", OFFSET(num), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100 },
1579 {"toggle", "set toggle", OFFSET(toggle), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1 },
1580 {"rational", "set rational", OFFSET(rational), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10 },
1581 {"string", "set string", OFFSET(string), AV_OPT_TYPE_STRING, {.str = "default"}, CHAR_MIN, CHAR_MAX },
1582 {"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, INT_MAX, 0, "flags" },
1583 {"cool", "set cool flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_COOL}, INT_MIN, INT_MAX, 0, "flags" },
1584 {"lame", "set lame flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_LAME}, INT_MIN, INT_MAX, 0, "flags" },
1585 {"mu", "set mu flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_MU}, INT_MIN, INT_MAX, 0, "flags" },
1586 {"size", "set size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE,{0}, 0, 0 },
1587 {"pix_fmt", "set pixfmt", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_NONE}, -1, AV_PIX_FMT_NB-1},
1588 {"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64 = AV_SAMPLE_FMT_NONE}, -1, AV_SAMPLE_FMT_NB-1},
1589 {"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0 },
1590 {"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX},
1591 {"color", "set color", OFFSET(color), AV_OPT_TYPE_COLOR, {.str = "pink"}, 0, 0},
1592 {"cl", "set channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64 = AV_CH_LAYOUT_HEXAGONAL}, 0, INT64_MAX},
1596 static const char *test_get_name(void *ctx)
1601 static const AVClass test_class = {
1611 printf("\nTesting av_set_options_string()\n");
1613 TestContext test_ctx = { 0 };
1614 static const char * const options[] = {
1630 "flags=+mu-lame : num=42: toggle=0",
1631 "num=42 : string=blahblah",
1632 "rational=0 : rational=1/2 : rational=1/-1",
1645 "video_rate=30000/1001",
1646 "video_rate=30/1.001",
1650 "duration=1\\:23\\:45.67",
1654 "cl=stereo+downmix",
1658 test_ctx.class = &test_class;
1659 av_opt_set_defaults(&test_ctx);
1661 av_log_set_level(AV_LOG_DEBUG);
1663 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
1664 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
1665 if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
1666 av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
1669 av_opt_free(&test_ctx);
1672 printf("\nTesting av_opt_set_from_string()\n");
1674 TestContext test_ctx = { 0 };
1675 static const char * const options[] = {
1683 " 5 : hello : size = pal ",
1684 "a_very_long_option_name_that_will_need_to_be_ellipsized_around_here=42"
1686 static const char * const shorthand[] = { "num", "string", NULL };
1688 test_ctx.class = &test_class;
1689 av_opt_set_defaults(&test_ctx);
1691 av_log_set_level(AV_LOG_DEBUG);
1693 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
1694 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
1695 if (av_opt_set_from_string(&test_ctx, options[i], shorthand, "=", ":") < 0)
1696 av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
1699 av_opt_free(&test_ctx);