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Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavutil / opt.c
CommitLineData
2ba45a60
DM		 1/*
2 * AVOptions
3 * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of FFmpeg.
6 *
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.
11 *
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.
16 *
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
20 */
21
22/**
23 * @file
24 * AVOptions
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28#include "avutil.h"
29#include "avstring.h"
30#include "channel_layout.h"
31#include "common.h"
32#include "opt.h"
33#include "eval.h"
34#include "dict.h"
35#include "log.h"
36#include "parseutils.h"
37#include "pixdesc.h"
38#include "mathematics.h"
39#include "samplefmt.h"
40
41#include <float.h>
42
43#if FF_API_FIND_OPT
44//FIXME order them and do a bin search
45const AVOption *av_find_opt(void *v, const char *name, const char *unit, int mask, int flags)
46{
47 const AVOption *o = NULL;
48
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)
51 return o;
52 }
53 return NULL;
54}
55#endif
56
57#if FF_API_OLD_AVOPTIONS
58const AVOption *av_next_option(void *obj, const AVOption *last)
59{
60 return av_opt_next(obj, last);
61}
62#endif
63
64const AVOption *av_opt_next(void *obj, const AVOption *last)
65{
66 AVClass *class = *(AVClass**)obj;
67 if (!last && class && class->option && class->option[0].name)
68 return class->option;
69 if (last && last[1].name)
70 return ++last;
71 return NULL;
72}
73
74static int read_number(const AVOption *o, void *dst, double *num, int *den, int64_t *intnum)
75{
76 switch (o->type) {
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;
88 return 0;
89 case AV_OPT_TYPE_CONST: *num = o->default_val.dbl; return 0;
90 }
91 return AVERROR(EINVAL);
92}
93
94static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
95{
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);
101 }
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);
109 }
110 }
111
112 switch (o->type) {
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);
125 break;
126 default:
127 return AVERROR(EINVAL);
128 }
129 return 0;
130}
131
132static int hexchar2int(char c) {
133 if (c >= '0' && c <= '9') return c - '0';
134 if (c >= 'a' && c <= 'f') return c - 'a' + 10;
135 if (c >= 'A' && c <= 'F') return c - 'A' + 10;
136 return -1;
137}
138
139static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
140{
141 int *lendst = (int *)(dst + 1);
142 uint8_t *bin, *ptr;
143 int len = strlen(val);
144
145 av_freep(dst);
146 *lendst = 0;
147
148 if (len & 1)
149 return AVERROR(EINVAL);
150 len /= 2;
151
152 ptr = bin = av_malloc(len);
153 while (*val) {
154 int a = hexchar2int(*val++);
155 int b = hexchar2int(*val++);
156 if (a < 0 || b < 0) {
157 av_free(bin);
158 return AVERROR(EINVAL);
159 }
160 *ptr++ = (a << 4) | b;
161 }
162 *dst = bin;
163 *lendst = len;
164
165 return 0;
166}
167
168static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
169{
170 av_freep(dst);
171 *dst = av_strdup(val);
172 return 0;
173}
174
175#define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
176 opt->type == AV_OPT_TYPE_CONST || \
177 opt->type == AV_OPT_TYPE_FLAGS || \
178 opt->type == AV_OPT_TYPE_INT) ? \
179 opt->default_val.i64 : opt->default_val.dbl)
180
181static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
182{
183 int ret = 0;
184 int num, den;
185 char c;
186
187 if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) {
188 if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0)
189 return ret;
190 ret = 0;
191 }
192
193 for (;;) {
194 int i = 0;
195 char buf[256];
196 int cmd = 0;
197 double d;
198 int64_t intnum = 1;
199
200 if (o->type == AV_OPT_TYPE_FLAGS) {
201 if (*val == '+' || *val == '-')
202 cmd = *(val++);
203 for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
204 buf[i] = val[i];
205 buf[i] = 0;
206 }
207
208 {
209 const AVOption *o_named = av_opt_find(target_obj, i ? buf : val, o->unit, 0, 0);
210 int res;
211 int ci = 0;
212 double const_values[64];
213 const char * const_names[64];
214 if (o_named && o_named->type == AV_OPT_TYPE_CONST)
215 d = DEFAULT_NUMVAL(o_named);
216 else {
217 if (o->unit) {
218 for (o_named = NULL; o_named = av_opt_next(target_obj, o_named); ) {
219 if (o_named->type == AV_OPT_TYPE_CONST &&
220 o_named->unit &&
221 !strcmp(o_named->unit, o->unit)) {
222 if (ci + 6 >= FF_ARRAY_ELEMS(const_values)) {
223 av_log(obj, AV_LOG_ERROR, "const_values array too small for %s\n", o->unit);
224 return AVERROR_PATCHWELCOME;
225 }
226 const_names [ci ] = o_named->name;
227 const_values[ci++] = DEFAULT_NUMVAL(o_named);
228 }
229 }
230 }
231 const_names [ci ] = "default";
232 const_values[ci++] = DEFAULT_NUMVAL(o);
233 const_names [ci ] = "max";
234 const_values[ci++] = o->max;
235 const_names [ci ] = "min";
236 const_values[ci++] = o->min;
237 const_names [ci ] = "none";
238 const_values[ci++] = 0;
239 const_names [ci ] = "all";
240 const_values[ci++] = ~0;
241 const_names [ci] = NULL;
242 const_values[ci] = 0;
243
244 res = av_expr_parse_and_eval(&d, i ? buf : val, const_names,
245 const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
246 if (res < 0) {
247 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
248 return res;
249 }
250 }
251 }
252 if (o->type == AV_OPT_TYPE_FLAGS) {
253 read_number(o, dst, NULL, NULL, &intnum);
254 if (cmd == '+') d = intnum | (int64_t)d;
255 else if (cmd == '-') d = intnum &~(int64_t)d;
256 }
257
258 if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
259 return ret;
260 val += i;
261 if (!i || !*val)
262 return 0;
263 }
264
265 return 0;
266}
267
268static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst)
269{
270 int ret;
271
272 if (!val || !strcmp(val, "none")) {
273 dst[0] =
274 dst[1] = 0;
275 return 0;
276 }
277 ret = av_parse_video_size(dst, dst + 1, val);
278 if (ret < 0)
279 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
280 return ret;
281}
282
283static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst)
284{
285 int ret;
286 if (!val) {
287 ret = AVERROR(EINVAL);
288 } else {
289 ret = av_parse_video_rate(dst, val);
290 }
291 if (ret < 0)
292 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
293 return ret;
294}
295
296static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst)
297{
298 int ret;
299
300 if (!val) {
301 return 0;
302 } else {
303 ret = av_parse_color(dst, val, -1, obj);
304 if (ret < 0)
305 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val);
306 return ret;
307 }
308 return 0;
309}
310
311static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst,
312 int fmt_nb, int ((*get_fmt)(const char *)), const char *desc)
313{
314 int fmt, min, max;
315
316 if (!val || !strcmp(val, "none")) {
317 fmt = -1;
318 } else {
319 fmt = get_fmt(val);
320 if (fmt == -1) {
321 char *tail;
322 fmt = strtol(val, &tail, 0);
323 if (*tail || (unsigned)fmt >= fmt_nb) {
324 av_log(obj, AV_LOG_ERROR,
325 "Unable to parse option value \"%s\" as %s\n", val, desc);
326 return AVERROR(EINVAL);
327 }
328 }
329 }
330
331 min = FFMAX(o->min, -1);
332 max = FFMIN(o->max, fmt_nb-1);
333
334 // hack for compatibility with old ffmpeg
335 if(min == 0 && max == 0) {
336 min = -1;
337 max = fmt_nb-1;
338 }
339
340 if (fmt < min || fmt > max) {
341 av_log(obj, AV_LOG_ERROR,
342 "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
343 fmt, o->name, desc, min, max);
344 return AVERROR(ERANGE);
345 }
346
347 *(int *)dst = fmt;
348 return 0;
349}
350
351static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
352{
353 return set_string_fmt(obj, o, val, dst,
354 AV_PIX_FMT_NB, av_get_pix_fmt, "pixel format");
355}
356
357static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
358{
359 return set_string_fmt(obj, o, val, dst,
360 AV_SAMPLE_FMT_NB, av_get_sample_fmt, "sample format");
361}
362
363#if FF_API_OLD_AVOPTIONS
364int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out)
365{
366 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
367 if (o_out)
368 *o_out = o;
369 return av_opt_set(obj, name, val, 0);
370}
371#endif
372
373int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
374{
375 int ret = 0;
376 void *dst, *target_obj;
377 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
378 if (!o || !target_obj)
379 return AVERROR_OPTION_NOT_FOUND;
380 if (!val && (o->type != AV_OPT_TYPE_STRING &&
381 o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
382 o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE &&
383 o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR &&
384 o->type != AV_OPT_TYPE_CHANNEL_LAYOUT))
385 return AVERROR(EINVAL);
386
387 if (o->flags & AV_OPT_FLAG_READONLY)
388 return AVERROR(EINVAL);
389
390 dst = ((uint8_t*)target_obj) + o->offset;
391 switch (o->type) {
392 case AV_OPT_TYPE_STRING: return set_string(obj, o, val, dst);
393 case AV_OPT_TYPE_BINARY: return set_string_binary(obj, o, val, dst);
394 case AV_OPT_TYPE_FLAGS:
395 case AV_OPT_TYPE_INT:
396 case AV_OPT_TYPE_INT64:
397 case AV_OPT_TYPE_FLOAT:
398 case AV_OPT_TYPE_DOUBLE:
399 case AV_OPT_TYPE_RATIONAL: return set_string_number(obj, target_obj, o, val, dst);
400 case AV_OPT_TYPE_IMAGE_SIZE: return set_string_image_size(obj, o, val, dst);
401 case AV_OPT_TYPE_VIDEO_RATE: return set_string_video_rate(obj, o, val, dst);
402 case AV_OPT_TYPE_PIXEL_FMT: return set_string_pixel_fmt(obj, o, val, dst);
403 case AV_OPT_TYPE_SAMPLE_FMT: return set_string_sample_fmt(obj, o, val, dst);
404 case AV_OPT_TYPE_DURATION:
405 if (!val) {
406 *(int64_t *)dst = 0;
407 return 0;
408 } else {
409 if ((ret = av_parse_time(dst, val, 1)) < 0)
410 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val);
411 return ret;
412 }
413 break;
414 case AV_OPT_TYPE_COLOR: return set_string_color(obj, o, val, dst);
415 case AV_OPT_TYPE_CHANNEL_LAYOUT:
416 if (!val || !strcmp(val, "none")) {
417 *(int64_t *)dst = 0;
418 } else {
419#if FF_API_GET_CHANNEL_LAYOUT_COMPAT
420 int64_t cl = ff_get_channel_layout(val, 0);
421#else
422 int64_t cl = av_get_channel_layout(val);
423#endif
424 if (!cl) {
425 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val);
426 ret = AVERROR(EINVAL);
427 }
428 *(int64_t *)dst = cl;
429 return ret;
430 }
431 break;
432 }
433
434 av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
435 return AVERROR(EINVAL);
436}
437
438#define OPT_EVAL_NUMBER(name, opttype, vartype)\
439 int av_opt_eval_ ## name(void *obj, const AVOption *o, const char *val, vartype *name ## _out)\
440 {\
441 if (!o || o->type != opttype || o->flags & AV_OPT_FLAG_READONLY)\
442 return AVERROR(EINVAL);\
443 return set_string_number(obj, obj, o, val, name ## _out);\
444 }
445
446OPT_EVAL_NUMBER(flags, AV_OPT_TYPE_FLAGS, int)
447OPT_EVAL_NUMBER(int, AV_OPT_TYPE_INT, int)
448OPT_EVAL_NUMBER(int64, AV_OPT_TYPE_INT64, int64_t)
449OPT_EVAL_NUMBER(float, AV_OPT_TYPE_FLOAT, float)
450OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE, double)
451OPT_EVAL_NUMBER(q, AV_OPT_TYPE_RATIONAL, AVRational)
452
453static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
454 int search_flags)
455{
456 void *dst, *target_obj;
457 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
458
459 if (!o || !target_obj)
460 return AVERROR_OPTION_NOT_FOUND;
461
462 if (o->flags & AV_OPT_FLAG_READONLY)
463 return AVERROR(EINVAL);
464
465 dst = ((uint8_t*)target_obj) + o->offset;
466 return write_number(obj, o, dst, num, den, intnum);
467}
468
469#if FF_API_OLD_AVOPTIONS
470const AVOption *av_set_double(void *obj, const char *name, double n)
471{
472 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
473 if (set_number(obj, name, n, 1, 1, 0) < 0)
474 return NULL;
475 return o;
476}
477
478const AVOption *av_set_q(void *obj, const char *name, AVRational n)
479{
480 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
481 if (set_number(obj, name, n.num, n.den, 1, 0) < 0)
482 return NULL;
483 return o;
484}
485
486const AVOption *av_set_int(void *obj, const char *name, int64_t n)
487{
488 const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
489 if (set_number(obj, name, 1, 1, n, 0) < 0)
490 return NULL;
491 return o;
492}
493#endif
494
495int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
496{
497 return set_number(obj, name, 1, 1, val, search_flags);
498}
499
500int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
501{
502 return set_number(obj, name, val, 1, 1, search_flags);
503}
504
505int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
506{
507 return set_number(obj, name, val.num, val.den, 1, search_flags);
508}
509
510int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
511{
512 void *target_obj;
513 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
514 uint8_t *ptr;
515 uint8_t **dst;
516 int *lendst;
517
518 if (!o || !target_obj)
519 return AVERROR_OPTION_NOT_FOUND;
520
521 if (o->type != AV_OPT_TYPE_BINARY || o->flags & AV_OPT_FLAG_READONLY)
522 return AVERROR(EINVAL);
523
524 ptr = len ? av_malloc(len) : NULL;
525 if (len && !ptr)
526 return AVERROR(ENOMEM);
527
528 dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
529 lendst = (int *)(dst + 1);
530
531 av_free(*dst);
532 *dst = ptr;
533 *lendst = len;
534 if (len)
535 memcpy(ptr, val, len);
536
537 return 0;
538}
539
540int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
541{
542 void *target_obj;
543 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
544
545 if (!o || !target_obj)
546 return AVERROR_OPTION_NOT_FOUND;
547 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
548 av_log(obj, AV_LOG_ERROR,
549 "The value set by option '%s' is not an image size.\n", o->name);
550 return AVERROR(EINVAL);
551 }
552 if (w<0 || h<0) {
553 av_log(obj, AV_LOG_ERROR,
554 "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
555 return AVERROR(EINVAL);
556 }
557 *(int *)(((uint8_t *)target_obj) + o->offset) = w;
558 *(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h;
559 return 0;
560}
561
562int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
563{
564 void *target_obj;
565 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
566
567 if (!o || !target_obj)
568 return AVERROR_OPTION_NOT_FOUND;
569 if (o->type != AV_OPT_TYPE_VIDEO_RATE) {
570 av_log(obj, AV_LOG_ERROR,
571 "The value set by option '%s' is not a video rate.\n", o->name);
572 return AVERROR(EINVAL);
573 }
574 if (val.num <= 0 || val.den <= 0)
575 return AVERROR(EINVAL);
576 return set_number(obj, name, val.num, val.den, 1, search_flags);
577}
578
579static int set_format(void *obj, const char *name, int fmt, int search_flags,
580 enum AVOptionType type, const char *desc, int nb_fmts)
581{
582 void *target_obj;
583 const AVOption *o = av_opt_find2(obj, name, NULL, 0,
584 search_flags, &target_obj);
585 int min, max;
586
587 if (!o || !target_obj)
588 return AVERROR_OPTION_NOT_FOUND;
589 if (o->type != type) {
590 av_log(obj, AV_LOG_ERROR,
591 "The value set by option '%s' is not a %s format", name, desc);
592 return AVERROR(EINVAL);
593 }
594
595 min = FFMAX(o->min, -1);
596 max = FFMIN(o->max, nb_fmts-1);
597
598 if (fmt < min || fmt > max) {
599 av_log(obj, AV_LOG_ERROR,
600 "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
601 fmt, name, desc, min, max);
602 return AVERROR(ERANGE);
603 }
604 *(int *)(((uint8_t *)target_obj) + o->offset) = fmt;
605 return 0;
606}
607
608int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
609{
610 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
611}
612
613int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
614{
615 return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
616}
617
618int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, int search_flags)
619{
620 void *target_obj;
621 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
622
623 if (!o || !target_obj)
624 return AVERROR_OPTION_NOT_FOUND;
625 if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
626 av_log(obj, AV_LOG_ERROR,
627 "The value set by option '%s' is not a channel layout.\n", o->name);
628 return AVERROR(EINVAL);
629 }
630 *(int64_t *)(((uint8_t *)target_obj) + o->offset) = cl;
631 return 0;
632}
633
634#if FF_API_OLD_AVOPTIONS
635/**
636 *
637 * @param buf a buffer which is used for returning non string values as strings, can be NULL
638 * @param buf_len allocated length in bytes of buf
639 */
640const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len)
641{
642 const AVOption *o = av_opt_find(obj, name, NULL, 0, AV_OPT_SEARCH_CHILDREN);
643 void *dst;
644 uint8_t *bin;
645 int len, i;
646 if (!o)
647 return NULL;
648 if (o->type != AV_OPT_TYPE_STRING && (!buf || !buf_len))
649 return NULL;
650
651 dst= ((uint8_t*)obj) + o->offset;
652 if (o_out) *o_out= o;
653
654 switch (o->type) {
655 case AV_OPT_TYPE_FLAGS: snprintf(buf, buf_len, "0x%08X",*(int *)dst);break;
656 case AV_OPT_TYPE_INT: snprintf(buf, buf_len, "%d" , *(int *)dst);break;
657 case AV_OPT_TYPE_INT64: snprintf(buf, buf_len, "%"PRId64, *(int64_t*)dst);break;
658 case AV_OPT_TYPE_FLOAT: snprintf(buf, buf_len, "%f" , *(float *)dst);break;
659 case AV_OPT_TYPE_DOUBLE: snprintf(buf, buf_len, "%f" , *(double *)dst);break;
660 case AV_OPT_TYPE_RATIONAL: snprintf(buf, buf_len, "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
661 case AV_OPT_TYPE_CONST: snprintf(buf, buf_len, "%f" , o->default_val.dbl);break;
662 case AV_OPT_TYPE_STRING: return *(void**)dst;
663 case AV_OPT_TYPE_BINARY:
664 len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
665 if (len >= (buf_len + 1)/2) return NULL;
666 bin = *(uint8_t**)dst;
667 for (i = 0; i < len; i++) snprintf(buf + i*2, 3, "%02X", bin[i]);
668 break;
669 default: return NULL;
670 }
671 return buf;
672}
673#endif
674
675int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val, int search_flags)
676{
677 void *target_obj;
678 AVDictionary **dst;
679 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
680
681 if (!o || !target_obj)
682 return AVERROR_OPTION_NOT_FOUND;
683 if (o->flags & AV_OPT_FLAG_READONLY)
684 return AVERROR(EINVAL);
685
686 dst = (AVDictionary **)(((uint8_t *)target_obj) + o->offset);
687 av_dict_free(dst);
688 av_dict_copy(dst, val, 0);
689
690 return 0;
691}
692
693int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
694{
695 void *dst, *target_obj;
696 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
697 uint8_t *bin, buf[128];
698 int len, i, ret;
699 int64_t i64;
700
701 if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
702 return AVERROR_OPTION_NOT_FOUND;
703
704 dst = (uint8_t*)target_obj + o->offset;
705
706 buf[0] = 0;
707 switch (o->type) {
708 case AV_OPT_TYPE_FLAGS: ret = snprintf(buf, sizeof(buf), "0x%08X", *(int *)dst);break;
709 case AV_OPT_TYPE_INT: ret = snprintf(buf, sizeof(buf), "%d" , *(int *)dst);break;
710 case AV_OPT_TYPE_INT64: ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t*)dst);break;
711 case AV_OPT_TYPE_FLOAT: ret = snprintf(buf, sizeof(buf), "%f" , *(float *)dst);break;
712 case AV_OPT_TYPE_DOUBLE: ret = snprintf(buf, sizeof(buf), "%f" , *(double *)dst);break;
713 case AV_OPT_TYPE_VIDEO_RATE:
714 case AV_OPT_TYPE_RATIONAL: ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
715 case AV_OPT_TYPE_CONST: ret = snprintf(buf, sizeof(buf), "%f" , o->default_val.dbl);break;
716 case AV_OPT_TYPE_STRING:
717 if (*(uint8_t**)dst)
718 *out_val = av_strdup(*(uint8_t**)dst);
719 else
720 *out_val = av_strdup("");
721 return 0;
722 case AV_OPT_TYPE_BINARY:
723 len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
724 if ((uint64_t)len*2 + 1 > INT_MAX)
725 return AVERROR(EINVAL);
726 if (!(*out_val = av_malloc(len*2 + 1)))
727 return AVERROR(ENOMEM);
728 bin = *(uint8_t**)dst;
729 for (i = 0; i < len; i++)
730 snprintf(*out_val + i*2, 3, "%02X", bin[i]);
731 return 0;
732 case AV_OPT_TYPE_IMAGE_SIZE:
733 ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
734 break;
735 case AV_OPT_TYPE_PIXEL_FMT:
736 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
737 break;
738 case AV_OPT_TYPE_SAMPLE_FMT:
739 ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
740 break;
741 case AV_OPT_TYPE_DURATION:
742 i64 = *(int64_t *)dst;
743 ret = snprintf(buf, sizeof(buf), "%"PRIi64"d:%02d:%02d.%06d",
744 i64 / 3600000000, (int)((i64 / 60000000) % 60),
745 (int)((i64 / 1000000) % 60), (int)(i64 % 1000000));
746 break;
747 case AV_OPT_TYPE_COLOR:
748 ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x", ((int *)dst)[0], ((int *)dst)[1], ((int *)dst)[2], ((int *)dst)[3]);
749 break;
750 case AV_OPT_TYPE_CHANNEL_LAYOUT:
751 i64 = *(int64_t *)dst;
752 ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64);
753 break;
754 default:
755 return AVERROR(EINVAL);
756 }
757
758 if (ret >= sizeof(buf))
759 return AVERROR(EINVAL);
760 *out_val = av_strdup(buf);
761 return 0;
762}
763
764static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum,
765 int search_flags)
766{
767 void *dst, *target_obj;
768 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
769 if (!o || !target_obj)
770 goto error;
771
772 dst = ((uint8_t*)target_obj) + o->offset;
773
774 if (o_out) *o_out= o;
775
776 return read_number(o, dst, num, den, intnum);
777
778error:
779 *den=*intnum=0;
780 return -1;
781}
782
783#if FF_API_OLD_AVOPTIONS
784double av_get_double(void *obj, const char *name, const AVOption **o_out)
785{
786 int64_t intnum=1;
787 double num=1;
788 int den=1;
789
790 if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
791 return NAN;
792 return num*intnum/den;
793}
794
795AVRational av_get_q(void *obj, const char *name, const AVOption **o_out)
796{
797 int64_t intnum=1;
798 double num=1;
799 int den=1;
800
801 if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
802 return (AVRational){0, 0};
803 if (num == 1.0 && (int)intnum == intnum)
804 return (AVRational){intnum, den};
805 else
806 return av_d2q(num*intnum/den, 1<<24);
807}
808
809int64_t av_get_int(void *obj, const char *name, const AVOption **o_out)
810{
811 int64_t intnum=1;
812 double num=1;
813 int den=1;
814
815 if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
816 return -1;
817 return num*intnum/den;
818}
819#endif
820
821int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
822{
823 int64_t intnum = 1;
824 double num = 1;
825 int ret, den = 1;
826
827 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
828 return ret;
829 *out_val = num*intnum/den;
830 return 0;
831}
832
833int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
834{
835 int64_t intnum = 1;
836 double num = 1;
837 int ret, den = 1;
838
839 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
840 return ret;
841 *out_val = num*intnum/den;
842 return 0;
843}
844
845int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
846{
847 int64_t intnum = 1;
848 double num = 1;
849 int ret, den = 1;
850
851 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
852 return ret;
853
854 if (num == 1.0 && (int)intnum == intnum)
855 *out_val = (AVRational){intnum, den};
856 else
857 *out_val = av_d2q(num*intnum/den, 1<<24);
858 return 0;
859}
860
861int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
862{
863 void *dst, *target_obj;
864 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
865 if (!o || !target_obj)
866 return AVERROR_OPTION_NOT_FOUND;
867 if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
868 av_log(obj, AV_LOG_ERROR,
869 "The value for option '%s' is not an image size.\n", name);
870 return AVERROR(EINVAL);
871 }
872
873 dst = ((uint8_t*)target_obj) + o->offset;
874 if (w_out) *w_out = *(int *)dst;
875 if (h_out) *h_out = *((int *)dst+1);
876 return 0;
877}
878
879int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
880{
881 int64_t intnum = 1;
882 double num = 1;
883 int ret, den = 1;
884
885 if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
886 return ret;
887
888 if (num == 1.0 && (int)intnum == intnum)
889 *out_val = (AVRational){intnum, den};
890 else
891 *out_val = av_d2q(num*intnum/den, 1<<24);
892 return 0;
893}
894
895static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
896 enum AVOptionType type, const char *desc)
897{
898 void *dst, *target_obj;
899 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
900 if (!o || !target_obj)
901 return AVERROR_OPTION_NOT_FOUND;
902 if (o->type != type) {
903 av_log(obj, AV_LOG_ERROR,
904 "The value for option '%s' is not a %s format.\n", desc, name);
905 return AVERROR(EINVAL);
906 }
907
908 dst = ((uint8_t*)target_obj) + o->offset;
909 *out_fmt = *(int *)dst;
910 return 0;
911}
912
913int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
914{
915 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
916}
917
918int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
919{
920 return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
921}
922
923int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl)
924{
925 void *dst, *target_obj;
926 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
927 if (!o || !target_obj)
928 return AVERROR_OPTION_NOT_FOUND;
929 if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
930 av_log(obj, AV_LOG_ERROR,
931 "The value for option '%s' is not a channel layout.\n", name);
932 return AVERROR(EINVAL);
933 }
934
935 dst = ((uint8_t*)target_obj) + o->offset;
936 *cl = *(int64_t *)dst;
937 return 0;
938}
939
940int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val)
941{
942 void *target_obj;
943 AVDictionary *src;
944 const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
945
946 if (!o || !target_obj)
947 return AVERROR_OPTION_NOT_FOUND;
948 if (o->type != AV_OPT_TYPE_DICT)
949 return AVERROR(EINVAL);
950
951 src = *(AVDictionary **)(((uint8_t *)target_obj) + o->offset);
952 av_dict_copy(out_val, src, 0);
953
954 return 0;
955}
956
957int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
958{
959 const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
960 const AVOption *flag = av_opt_find(obj, flag_name,
961 field ? field->unit : NULL, 0, 0);
962 int64_t res;
963
964 if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
965 av_opt_get_int(obj, field_name, 0, &res) < 0)
966 return 0;
967 return res & flag->default_val.i64;
968}
969
970static void log_value(void *av_log_obj, int level, double d)
971{
972 if (d == INT_MAX) {
973 av_log(av_log_obj, level, "INT_MAX");
974 } else if (d == INT_MIN) {
975 av_log(av_log_obj, level, "INT_MIN");
976 } else if (d == UINT32_MAX) {
977 av_log(av_log_obj, level, "UINT32_MAX");
978 } else if (d == (double)INT64_MAX) {
979 av_log(av_log_obj, level, "I64_MAX");
980 } else if (d == INT64_MIN) {
981 av_log(av_log_obj, level, "I64_MIN");
982 } else if (d == FLT_MAX) {
983 av_log(av_log_obj, level, "FLT_MAX");
984 } else if (d == FLT_MIN) {
985 av_log(av_log_obj, level, "FLT_MIN");
986 } else if (d == -FLT_MAX) {
987 av_log(av_log_obj, level, "-FLT_MAX");
988 } else if (d == -FLT_MIN) {
989 av_log(av_log_obj, level, "-FLT_MIN");
990 } else if (d == DBL_MAX) {
991 av_log(av_log_obj, level, "DBL_MAX");
992 } else if (d == DBL_MIN) {
993 av_log(av_log_obj, level, "DBL_MIN");
994 } else if (d == -DBL_MAX) {
995 av_log(av_log_obj, level, "-DBL_MAX");
996 } else if (d == -DBL_MIN) {
997 av_log(av_log_obj, level, "-DBL_MIN");
998 } else {
999 av_log(av_log_obj, level, "%g", d);
1000 }
1001}
1002
1003static void opt_list(void *obj, void *av_log_obj, const char *unit,
1004 int req_flags, int rej_flags)
1005{
1006 const AVOption *opt=NULL;
1007 AVOptionRanges *r;
1008 int i;
1009
1010 while ((opt = av_opt_next(obj, opt))) {
1011 if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
1012 continue;
1013
1014 /* Don't print CONST's on level one.
1015 * Don't print anything but CONST's on level two.
1016 * Only print items from the requested unit.
1017 */
1018 if (!unit && opt->type==AV_OPT_TYPE_CONST)
1019 continue;
1020 else if (unit && opt->type!=AV_OPT_TYPE_CONST)
1021 continue;
1022 else if (unit && opt->type==AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
1023 continue;
1024 else if (unit && opt->type == AV_OPT_TYPE_CONST)
1025 av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name);
1026 else
1027 av_log(av_log_obj, AV_LOG_INFO, " %s%-17s ",
1028 (opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-",
1029 opt->name);
1030
1031 switch (opt->type) {
1032 case AV_OPT_TYPE_FLAGS:
1033 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>");
1034 break;
1035 case AV_OPT_TYPE_INT:
1036 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>");
1037 break;
1038 case AV_OPT_TYPE_INT64:
1039 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>");
1040 break;
1041 case AV_OPT_TYPE_DOUBLE:
1042 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>");
1043 break;
1044 case AV_OPT_TYPE_FLOAT:
1045 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>");
1046 break;
1047 case AV_OPT_TYPE_STRING:
1048 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>");
1049 break;
1050 case AV_OPT_TYPE_RATIONAL:
1051 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>");
1052 break;
1053 case AV_OPT_TYPE_BINARY:
1054 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>");
1055 break;
1056 case AV_OPT_TYPE_IMAGE_SIZE:
1057 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
1058 break;
1059 case AV_OPT_TYPE_VIDEO_RATE:
1060 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
1061 break;
1062 case AV_OPT_TYPE_PIXEL_FMT:
1063 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
1064 break;
1065 case AV_OPT_TYPE_SAMPLE_FMT:
1066 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>");
1067 break;
1068 case AV_OPT_TYPE_DURATION:
1069 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>");
1070 break;
1071 case AV_OPT_TYPE_COLOR:
1072 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>");
1073 break;
1074 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1075 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>");
1076 break;
1077 case AV_OPT_TYPE_CONST:
1078 default:
1079 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
1080 break;
1081 }
1082 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
1083 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
1084 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_FILTERING_PARAM)? 'F' : '.');
1085 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.');
1086 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
1087 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
1088 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_EXPORT) ? 'X' : '.');
1089 av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_READONLY) ? 'R' : '.');
1090
1091 if (opt->help)
1092 av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
1093
1094 if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) {
1095 switch (opt->type) {
1096 case AV_OPT_TYPE_INT:
1097 case AV_OPT_TYPE_INT64:
1098 case AV_OPT_TYPE_DOUBLE:
1099 case AV_OPT_TYPE_FLOAT:
1100 case AV_OPT_TYPE_RATIONAL:
1101 for (i = 0; i < r->nb_ranges; i++) {
1102 av_log(av_log_obj, AV_LOG_INFO, " (from ");
1103 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
1104 av_log(av_log_obj, AV_LOG_INFO, " to ");
1105 log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
1106 av_log(av_log_obj, AV_LOG_INFO, ")");
1107 }
1108 break;
1109 }
1110 av_opt_freep_ranges(&r);
1111 }
1112
1113 if (opt->type != AV_OPT_TYPE_CONST &&
1114 opt->type != AV_OPT_TYPE_BINARY &&
1115 !((opt->type == AV_OPT_TYPE_COLOR ||
1116 opt->type == AV_OPT_TYPE_IMAGE_SIZE ||
1117 opt->type == AV_OPT_TYPE_STRING ||
1118 opt->type == AV_OPT_TYPE_VIDEO_RATE) &&
1119 !opt->default_val.str)) {
1120 av_log(av_log_obj, AV_LOG_INFO, " (default ");
1121 switch (opt->type) {
1122 case AV_OPT_TYPE_FLAGS:
1123 av_log(av_log_obj, AV_LOG_INFO, "%"PRIX64, opt->default_val.i64);
1124 break;
1125 case AV_OPT_TYPE_DURATION:
1126 case AV_OPT_TYPE_INT:
1127 case AV_OPT_TYPE_INT64:
1128 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.i64);
1129 break;
1130 case AV_OPT_TYPE_DOUBLE:
1131 case AV_OPT_TYPE_FLOAT:
1132 log_value(av_log_obj, AV_LOG_INFO, opt->default_val.dbl);
1133 break;
1134 case AV_OPT_TYPE_RATIONAL: {
1135 AVRational q = av_d2q(opt->default_val.dbl, INT_MAX);
1136 av_log(av_log_obj, AV_LOG_INFO, "%d/%d", q.num, q.den); }
1137 break;
1138 case AV_OPT_TYPE_PIXEL_FMT:
1139 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 break;
1141 case AV_OPT_TYPE_SAMPLE_FMT:
1142 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 break;
1144 case AV_OPT_TYPE_COLOR:
1145 case AV_OPT_TYPE_IMAGE_SIZE:
1146 case AV_OPT_TYPE_STRING:
1147 case AV_OPT_TYPE_VIDEO_RATE:
1148 av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str);
1149 break;
1150 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1151 av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64);
1152 break;
1153 }
1154 av_log(av_log_obj, AV_LOG_INFO, ")");
1155 }
1156
1157 av_log(av_log_obj, AV_LOG_INFO, "\n");
1158 if (opt->unit && opt->type != AV_OPT_TYPE_CONST) {
1159 opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
1160 }
1161 }
1162}
1163
1164int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
1165{
1166 if (!obj)
1167 return -1;
1168
1169 av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
1170
1171 opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
1172
1173 return 0;
1174}
1175
1176void av_opt_set_defaults(void *s)
1177{
1178#if FF_API_OLD_AVOPTIONS
1179 av_opt_set_defaults2(s, 0, 0);
1180}
1181
1182void av_opt_set_defaults2(void *s, int mask, int flags)
1183{
1184#endif
1185 const AVOption *opt = NULL;
1186 while ((opt = av_opt_next(s, opt))) {
1187 void *dst = ((uint8_t*)s) + opt->offset;
1188#if FF_API_OLD_AVOPTIONS
1189 if ((opt->flags & mask) != flags)
1190 continue;
1191#endif
1192
1193 if (opt->flags & AV_OPT_FLAG_READONLY)
1194 continue;
1195
1196 switch (opt->type) {
1197 case AV_OPT_TYPE_CONST:
1198 /* Nothing to be done here */
1199 break;
1200 case AV_OPT_TYPE_FLAGS:
1201 case AV_OPT_TYPE_INT:
1202 case AV_OPT_TYPE_INT64:
1203 case AV_OPT_TYPE_DURATION:
1204 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1205 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1206 break;
1207 case AV_OPT_TYPE_DOUBLE:
1208 case AV_OPT_TYPE_FLOAT: {
1209 double val;
1210 val = opt->default_val.dbl;
1211 write_number(s, opt, dst, val, 1, 1);
1212 }
1213 break;
1214 case AV_OPT_TYPE_RATIONAL: {
1215 AVRational val;
1216 val = av_d2q(opt->default_val.dbl, INT_MAX);
1217 write_number(s, opt, dst, 1, val.den, val.num);
1218 }
1219 break;
1220 case AV_OPT_TYPE_COLOR:
1221 set_string_color(s, opt, opt->default_val.str, dst);
1222 break;
1223 case AV_OPT_TYPE_STRING:
1224 set_string(s, opt, opt->default_val.str, dst);
1225 break;
1226 case AV_OPT_TYPE_IMAGE_SIZE:
1227 set_string_image_size(s, opt, opt->default_val.str, dst);
1228 break;
1229 case AV_OPT_TYPE_VIDEO_RATE:
1230 set_string_video_rate(s, opt, opt->default_val.str, dst);
1231 break;
1232 case AV_OPT_TYPE_PIXEL_FMT:
1233 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1234 break;
1235 case AV_OPT_TYPE_SAMPLE_FMT:
1236 write_number(s, opt, dst, 1, 1, opt->default_val.i64);
1237 break;
1238 case AV_OPT_TYPE_BINARY:
1239 case AV_OPT_TYPE_DICT:
1240 /* Cannot set defaults for these types */
1241 break;
1242 default:
1243 av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
1244 }
1245 }
1246}
1247
1248/**
1249 * Store the value in the field in ctx that is named like key.
1250 * ctx must be an AVClass context, storing is done using AVOptions.
1251 *
1252 * @param buf the string to parse, buf will be updated to point at the
1253 * separator just after the parsed key/value pair
1254 * @param key_val_sep a 0-terminated list of characters used to
1255 * separate key from value
1256 * @param pairs_sep a 0-terminated list of characters used to separate
1257 * two pairs from each other
1258 * @return 0 if the key/value pair has been successfully parsed and
1259 * set, or a negative value corresponding to an AVERROR code in case
1260 * of error:
1261 * AVERROR(EINVAL) if the key/value pair cannot be parsed,
1262 * the error code issued by av_opt_set() if the key/value pair
1263 * cannot be set
1264 */
1265static int parse_key_value_pair(void *ctx, const char **buf,
1266 const char *key_val_sep, const char *pairs_sep)
1267{
1268 char *key = av_get_token(buf, key_val_sep);
1269 char *val;
1270 int ret;
1271
1272 if (!key)
1273 return AVERROR(ENOMEM);
1274
1275 if (*key && strspn(*buf, key_val_sep)) {
1276 (*buf)++;
1277 val = av_get_token(buf, pairs_sep);
1278 if (!val) {
1279 av_freep(&key);
1280 return AVERROR(ENOMEM);
1281 }
1282 } else {
1283 av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
1284 av_free(key);
1285 return AVERROR(EINVAL);
1286 }
1287
1288 av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val);
1289
1290 ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN);
1291 if (ret == AVERROR_OPTION_NOT_FOUND)
1292 av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
1293
1294 av_free(key);
1295 av_free(val);
1296 return ret;
1297}
1298
1299int av_set_options_string(void *ctx, const char *opts,
1300 const char *key_val_sep, const char *pairs_sep)
1301{
1302 int ret, count = 0;
1303
1304 if (!opts)
1305 return 0;
1306
1307 while (*opts) {
1308 if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
1309 return ret;
1310 count++;
1311
1312 if (*opts)
1313 opts++;
1314 }
1315
1316 return count;
1317}
1318
1319#define WHITESPACES " \n\t"
1320
1321static int is_key_char(char c)
1322{
1323 return (unsigned)((c | 32) - 'a') < 26 ||
1324 (unsigned)(c - '0') < 10 ||
1325 c == '-' || c == '_' || c == '/' || c == '.';
1326}
1327
1328/**
1329 * Read a key from a string.
1330 *
1331 * The key consists of is_key_char characters and must be terminated by a
1332 * character from the delim string; spaces are ignored.
1333 *
1334 * @return 0 for success (even with ellipsis), <0 for failure
1335 */
1336static int get_key(const char **ropts, const char *delim, char **rkey)
1337{
1338 const char *opts = *ropts;
1339 const char *key_start, *key_end;
1340
1341 key_start = opts += strspn(opts, WHITESPACES);
1342 while (is_key_char(*opts))
1343 opts++;
1344 key_end = opts;
1345 opts += strspn(opts, WHITESPACES);
1346 if (!*opts || !strchr(delim, *opts))
1347 return AVERROR(EINVAL);
1348 opts++;
1349 if (!(*rkey = av_malloc(key_end - key_start + 1)))
1350 return AVERROR(ENOMEM);
1351 memcpy(*rkey, key_start, key_end - key_start);
1352 (*rkey)[key_end - key_start] = 0;
1353 *ropts = opts;
1354 return 0;
1355}
1356
1357int av_opt_get_key_value(const char **ropts,
1358 const char *key_val_sep, const char *pairs_sep,
1359 unsigned flags,
1360 char **rkey, char **rval)
1361{
1362 int ret;
1363 char *key = NULL, *val;
1364 const char *opts = *ropts;
1365
1366 if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
1367 !(flags & AV_OPT_FLAG_IMPLICIT_KEY))
1368 return AVERROR(EINVAL);
1369 if (!(val = av_get_token(&opts, pairs_sep))) {
1370 av_free(key);
1371 return AVERROR(ENOMEM);
1372 }
1373 *ropts = opts;
1374 *rkey = key;
1375 *rval = val;
1376 return 0;
1377}
1378
1379int av_opt_set_from_string(void *ctx, const char *opts,
1380 const char *const *shorthand,
1381 const char *key_val_sep, const char *pairs_sep)
1382{
1383 int ret, count = 0;
1384 const char *dummy_shorthand = NULL;
1385 char *av_uninit(parsed_key), *av_uninit(value);
1386 const char *key;
1387
1388 if (!opts)
1389 return 0;
1390 if (!shorthand)
1391 shorthand = &dummy_shorthand;
1392
1393 while (*opts) {
1394 ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
1395 *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
1396 &parsed_key, &value);
1397 if (ret < 0) {
1398 if (ret == AVERROR(EINVAL))
1399 av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts);
1400 else
1401 av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts,
1402 av_err2str(ret));
1403 return ret;
1404 }
1405 if (*opts)
1406 opts++;
1407 if (parsed_key) {
1408 key = parsed_key;
1409 while (*shorthand) /* discard all remaining shorthand */
1410 shorthand++;
1411 } else {
1412 key = *(shorthand++);
1413 }
1414
1415 av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
1416 if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
1417 if (ret == AVERROR_OPTION_NOT_FOUND)
1418 av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
1419 av_free(value);
1420 av_free(parsed_key);
1421 return ret;
1422 }
1423
1424 av_free(value);
1425 av_free(parsed_key);
1426 count++;
1427 }
1428 return count;
1429}
1430
1431void av_opt_free(void *obj)
1432{
1433 const AVOption *o = NULL;
1434 while ((o = av_opt_next(obj, o))) {
1435 switch (o->type) {
1436 case AV_OPT_TYPE_STRING:
1437 case AV_OPT_TYPE_BINARY:
1438 av_freep((uint8_t *)obj + o->offset);
1439 break;
1440
1441 case AV_OPT_TYPE_DICT:
1442 av_dict_free((AVDictionary **)(((uint8_t *)obj) + o->offset));
1443 break;
1444
1445 default:
1446 break;
1447 }
1448 }
1449}
1450
1451int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags)
1452{
1453 AVDictionaryEntry *t = NULL;
1454 AVDictionary *tmp = NULL;
1455 int ret = 0;
1456
1457 if (!options)
1458 return 0;
1459
1460 while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
1461 ret = av_opt_set(obj, t->key, t->value, search_flags);
1462 if (ret == AVERROR_OPTION_NOT_FOUND)
1463 av_dict_set(&tmp, t->key, t->value, 0);
1464 else if (ret < 0) {
1465 av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
1466 break;
1467 }
1468 ret = 0;
1469 }
1470 av_dict_free(options);
1471 *options = tmp;
1472 return ret;
1473}
1474
1475int av_opt_set_dict(void *obj, AVDictionary **options)
1476{
1477 return av_opt_set_dict2(obj, options, 0);
1478}
1479
1480const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
1481 int opt_flags, int search_flags)
1482{
1483 return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
1484}
1485
1486const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
1487 int opt_flags, int search_flags, void **target_obj)
1488{
1489 const AVClass *c;
1490 const AVOption *o = NULL;
1491
1492 if(!obj)
1493 return NULL;
1494
1495 c= *(AVClass**)obj;
1496
1497 if (!c)
1498 return NULL;
1499
1500 if (search_flags & AV_OPT_SEARCH_CHILDREN) {
1501 if (search_flags & AV_OPT_SEARCH_FAKE_OBJ) {
1502 const AVClass *child = NULL;
1503 while (child = av_opt_child_class_next(c, child))
1504 if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL))
1505 return o;
1506 } else {
1507 void *child = NULL;
1508 while (child = av_opt_child_next(obj, child))
1509 if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
1510 return o;
1511 }
1512 }
1513
1514 while (o = av_opt_next(obj, o)) {
1515 if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
1516 ((!unit && o->type != AV_OPT_TYPE_CONST) ||
1517 (unit && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) {
1518 if (target_obj) {
1519 if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ))
1520 *target_obj = obj;
1521 else
1522 *target_obj = NULL;
1523 }
1524 return o;
1525 }
1526 }
1527 return NULL;
1528}
1529
1530void *av_opt_child_next(void *obj, void *prev)
1531{
1532 const AVClass *c = *(AVClass**)obj;
1533 if (c->child_next)
1534 return c->child_next(obj, prev);
1535 return NULL;
1536}
1537
1538const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
1539{
1540 if (parent->child_class_next)
1541 return parent->child_class_next(prev);
1542 return NULL;
1543}
1544
1545void *av_opt_ptr(const AVClass *class, void *obj, const char *name)
1546{
1547 const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL);
1548 if(!opt)
1549 return NULL;
1550 return (uint8_t*)obj + opt->offset;
1551}
1552
1553static int opt_size(enum AVOptionType type)
1554{
1555 switch(type) {
1556 case AV_OPT_TYPE_INT:
1557 case AV_OPT_TYPE_FLAGS: return sizeof(int);
1558 case AV_OPT_TYPE_DURATION:
1559 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1560 case AV_OPT_TYPE_INT64: return sizeof(int64_t);
1561 case AV_OPT_TYPE_DOUBLE: return sizeof(double);
1562 case AV_OPT_TYPE_FLOAT: return sizeof(float);
1563 case AV_OPT_TYPE_STRING: return sizeof(uint8_t*);
1564 case AV_OPT_TYPE_VIDEO_RATE:
1565 case AV_OPT_TYPE_RATIONAL: return sizeof(AVRational);
1566 case AV_OPT_TYPE_BINARY: return sizeof(uint8_t*) + sizeof(int);
1567 case AV_OPT_TYPE_IMAGE_SIZE:return sizeof(int[2]);
1568 case AV_OPT_TYPE_PIXEL_FMT: return sizeof(enum AVPixelFormat);
1569 case AV_OPT_TYPE_SAMPLE_FMT:return sizeof(enum AVSampleFormat);
1570 case AV_OPT_TYPE_COLOR: return 4;
1571 }
1572 return 0;
1573}
1574
1575int av_opt_copy(void *dst, void *src)
1576{
1577 const AVOption *o = NULL;
1578 const AVClass *c;
1579 int ret = 0;
1580
1581 if (!src)
1582 return 0;
1583
1584 c = *(AVClass**)src;
1585 if (*(AVClass**)dst && c != *(AVClass**)dst)
1586 return AVERROR(EINVAL);
1587
1588 while ((o = av_opt_next(src, o))) {
1589 void *field_dst = ((uint8_t*)dst) + o->offset;
1590 void *field_src = ((uint8_t*)src) + o->offset;
1591 uint8_t **field_dst8 = (uint8_t**)field_dst;
1592 uint8_t **field_src8 = (uint8_t**)field_src;
1593
1594 if (o->type == AV_OPT_TYPE_STRING) {
1595 if (*field_dst8 != *field_src8)
1596 av_freep(field_dst8);
1597 *field_dst8 = av_strdup(*field_src8);
1598 if (*field_src8 && !*field_dst8)
1599 ret = AVERROR(ENOMEM);
1600 } else if (o->type == AV_OPT_TYPE_BINARY) {
1601 int len = *(int*)(field_src8 + 1);
1602 if (*field_dst8 != *field_src8)
1603 av_freep(field_dst8);
1604 *field_dst8 = av_memdup(*field_src8, len);
1605 if (len && !*field_dst8) {
1606 ret = AVERROR(ENOMEM);
1607 len = 0;
1608 }
1609 *(int*)(field_dst8 + 1) = len;
1610 } else if (o->type == AV_OPT_TYPE_CONST) {
1611 // do nothing
1612 } else {
1613 memcpy(field_dst, field_src, opt_size(o->type));
1614 }
1615 }
1616 return ret;
1617}
1618
1619int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1620{
1621 int ret;
1622 const AVClass *c = *(AVClass**)obj;
1623 int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL;
1624
1625 if (c->version > (52 << 16 | 11 << 8))
1626 callback = c->query_ranges;
1627
1628 if (!callback)
1629 callback = av_opt_query_ranges_default;
1630
1631 ret = callback(ranges_arg, obj, key, flags);
1632 if (ret >= 0) {
1633 if (!(flags & AV_OPT_MULTI_COMPONENT_RANGE))
1634 ret = 1;
1635 (*ranges_arg)->nb_components = ret;
1636 }
1637 return ret;
1638}
1639
1640int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
1641{
1642 AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
1643 AVOptionRange **range_array = av_mallocz(sizeof(void*));
1644 AVOptionRange *range = av_mallocz(sizeof(*range));
1645 const AVOption *field = av_opt_find(obj, key, NULL, 0, flags);
1646 int ret;
1647
1648 *ranges_arg = NULL;
1649
1650 if (!ranges || !range || !range_array || !field) {
1651 ret = AVERROR(ENOMEM);
1652 goto fail;
1653 }
1654
1655 ranges->range = range_array;
1656 ranges->range[0] = range;
1657 ranges->nb_ranges = 1;
1658 ranges->nb_components = 1;
1659 range->is_range = 1;
1660 range->value_min = field->min;
1661 range->value_max = field->max;
1662
1663 switch (field->type) {
1664 case AV_OPT_TYPE_INT:
1665 case AV_OPT_TYPE_INT64:
1666 case AV_OPT_TYPE_PIXEL_FMT:
1667 case AV_OPT_TYPE_SAMPLE_FMT:
1668 case AV_OPT_TYPE_FLOAT:
1669 case AV_OPT_TYPE_DOUBLE:
1670 case AV_OPT_TYPE_DURATION:
1671 case AV_OPT_TYPE_COLOR:
1672 case AV_OPT_TYPE_CHANNEL_LAYOUT:
1673 break;
1674 case AV_OPT_TYPE_STRING:
1675 range->component_min = 0;
1676 range->component_max = 0x10FFFF; // max unicode value
1677 range->value_min = -1;
1678 range->value_max = INT_MAX;
1679 break;
1680 case AV_OPT_TYPE_RATIONAL:
1681 range->component_min = INT_MIN;
1682 range->component_max = INT_MAX;
1683 break;
1684 case AV_OPT_TYPE_IMAGE_SIZE:
1685 range->component_min = 0;
1686 range->component_max = INT_MAX/128/8;
1687 range->value_min = 0;
1688 range->value_max = INT_MAX/8;
1689 break;
1690 case AV_OPT_TYPE_VIDEO_RATE:
1691 range->component_min = 1;
1692 range->component_max = INT_MAX;
1693 range->value_min = 1;
1694 range->value_max = INT_MAX;
1695 break;
1696 default:
1697 ret = AVERROR(ENOSYS);
1698 goto fail;
1699 }
1700
1701 *ranges_arg = ranges;
1702 return 1;
1703fail:
1704 av_free(ranges);
1705 av_free(range);
1706 av_free(range_array);
1707 return ret;
1708}
1709
1710void av_opt_freep_ranges(AVOptionRanges **rangesp)
1711{
1712 int i;
1713 AVOptionRanges *ranges = *rangesp;
1714
1715 if (!ranges)
1716 return;
1717
1718 for (i = 0; i < ranges->nb_ranges * ranges->nb_components; i++) {
1719 AVOptionRange *range = ranges->range[i];
1720 if (range) {
1721 av_freep(&range->str);
1722 av_freep(&ranges->range[i]);
1723 }
1724 }
1725 av_freep(&ranges->range);
1726 av_freep(rangesp);
1727}
1728
1729#ifdef TEST
1730
1731typedef struct TestContext
1732{
1733 const AVClass *class;
1734 int num;
1735 int toggle;
1736 char *string;
1737 int flags;
1738 AVRational rational;
1739 AVRational video_rate;
1740 int w, h;
1741 enum AVPixelFormat pix_fmt;
1742 enum AVSampleFormat sample_fmt;
1743 int64_t duration;
1744 uint8_t color[4];
1745 int64_t channel_layout;
1746} TestContext;
1747
1748#define OFFSET(x) offsetof(TestContext, x)
1749
1750#define TEST_FLAG_COOL 01
1751#define TEST_FLAG_LAME 02
1752#define TEST_FLAG_MU 04
1753
1754static const AVOption test_options[]= {
1755{"num", "set num", OFFSET(num), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100 },
1756{"toggle", "set toggle", OFFSET(toggle), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1 },
1757{"rational", "set rational", OFFSET(rational), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10 },
1758{"string", "set string", OFFSET(string), AV_OPT_TYPE_STRING, {.str = "default"}, CHAR_MIN, CHAR_MAX },
1759{"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, INT_MAX, 0, "flags" },
1760{"cool", "set cool flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_COOL}, INT_MIN, INT_MAX, 0, "flags" },
1761{"lame", "set lame flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_LAME}, INT_MIN, INT_MAX, 0, "flags" },
1762{"mu", "set mu flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_MU}, INT_MIN, INT_MAX, 0, "flags" },
1763{"size", "set size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE,{0}, 0, 0 },
1764{"pix_fmt", "set pixfmt", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_NONE}, -1, INT_MAX},
1765{"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64 = AV_SAMPLE_FMT_NONE}, -1, INT_MAX},
1766{"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0 },
1767{"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX},
1768{"color", "set color", OFFSET(color), AV_OPT_TYPE_COLOR, {.str = "pink"}, 0, 0},
1769{"cl", "set channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64 = AV_CH_LAYOUT_HEXAGONAL}, 0, INT64_MAX},
1770{NULL},
1771};
1772
1773static const char *test_get_name(void *ctx)
1774{
1775 return "test";
1776}
1777
1778static const AVClass test_class = {
1779 "TestContext",
1780 test_get_name,
1781 test_options
1782};
1783
1784int main(void)
1785{
1786 int i;
1787
1788 printf("\nTesting av_set_options_string()\n");
1789 {
1790 TestContext test_ctx = { 0 };
1791 static const char * const options[] = {
1792 "",
1793 ":",
1794 "=",
1795 "foo=:",
1796 ":=foo",
1797 "=foo",
1798 "foo=",
1799 "foo",
1800 "foo=val",
1801 "foo==val",
1802 "toggle=:",
1803 "string=:",
1804 "toggle=1 : foo",
1805 "toggle=100",
1806 "toggle==1",
1807 "flags=+mu-lame : num=42: toggle=0",
1808 "num=42 : string=blahblah",
1809 "rational=0 : rational=1/2 : rational=1/-1",
1810 "rational=-1/0",
1811 "size=1024x768",
1812 "size=pal",
1813 "size=bogus",
1814 "pix_fmt=yuv420p",
1815 "pix_fmt=2",
1816 "pix_fmt=bogus",
1817 "sample_fmt=s16",
1818 "sample_fmt=2",
1819 "sample_fmt=bogus",
1820 "video_rate=pal",
1821 "video_rate=25",
1822 "video_rate=30000/1001",
1823 "video_rate=30/1.001",
1824 "video_rate=bogus",
1825 "duration=bogus",
1826 "duration=123.45",
1827 "duration=1\\:23\\:45.67",
1828 "color=blue",
1829 "color=0x223300",
1830 "color=0x42FF07AA",
1831 "cl=stereo+downmix",
1832 "cl=foo",
1833 };
1834
1835 test_ctx.class = &test_class;
1836 av_opt_set_defaults(&test_ctx);
1837
1838 av_log_set_level(AV_LOG_DEBUG);
1839
1840 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
1841 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
1842 if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
1843 av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
1844 printf("\n");
1845 }
1846 av_opt_free(&test_ctx);
1847 }
1848
1849 printf("\nTesting av_opt_set_from_string()\n");
1850 {
1851 TestContext test_ctx = { 0 };
1852 static const char * const options[] = {
1853 "",
1854 "5",
1855 "5:hello",
1856 "5:hello:size=pal",
1857 "5:size=pal:hello",
1858 ":",
1859 "=",
1860 " 5 : hello : size = pal ",
1861 "a_very_long_option_name_that_will_need_to_be_ellipsized_around_here=42"
1862 };
1863 static const char * const shorthand[] = { "num", "string", NULL };
1864
1865 test_ctx.class = &test_class;
1866 av_opt_set_defaults(&test_ctx);
1867
1868 av_log_set_level(AV_LOG_DEBUG);
1869
1870 for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
1871 av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
1872 if (av_opt_set_from_string(&test_ctx, options[i], shorthand, "=", ":") < 0)
1873 av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
1874 printf("\n");
1875 }
1876 av_opt_free(&test_ctx);
1877 }
1878
1879 return 0;
1880}
1881
1882#endif
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