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1
/*
2
 * AVOptions
3
 * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
4
 *
5
 * This file is part of Libav.
6
 *
7
 * Libav 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
 * Libav 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
 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with Libav; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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 "opt.h"
31
#include "eval.h"
32

    
33
//FIXME order them and do a bin search
34
const AVOption *av_find_opt(void *v, const char *name, const char *unit, int mask, int flags)
35
{
36
    AVClass *c= *(AVClass**)v; //FIXME silly way of storing AVClass
37
    const AVOption *o= c->option;
38

    
39
    for (; o && o->name; o++) {
40
        if (!strcmp(o->name, name) && (!unit || (o->unit && !strcmp(o->unit, unit))) && (o->flags & mask) == flags)
41
            return o;
42
    }
43
    return NULL;
44
}
45

    
46
const AVOption *av_next_option(void *obj, const AVOption *last)
47
{
48
    if (last && last[1].name) return ++last;
49
    else if (last)            return NULL;
50
    else                      return (*(AVClass**)obj)->option;
51
}
52

    
53
static int av_set_number2(void *obj, const char *name, double num, int den, int64_t intnum, const AVOption **o_out)
54
{
55
    const AVOption *o= av_find_opt(obj, name, NULL, 0, 0);
56
    void *dst;
57
    if (o_out)
58
        *o_out= o;
59
    if (!o || o->offset<=0)
60
        return AVERROR_OPTION_NOT_FOUND;
61

    
62
    if (o->max*den < num*intnum || o->min*den > num*intnum) {
63
        av_log(obj, AV_LOG_ERROR, "Value %lf for parameter '%s' out of range\n", num, name);
64
        return AVERROR(ERANGE);
65
    }
66

    
67
    dst= ((uint8_t*)obj) + o->offset;
68

    
69
    switch (o->type) {
70
    case FF_OPT_TYPE_FLAGS:
71
    case FF_OPT_TYPE_INT:   *(int       *)dst= llrint(num/den)*intnum; break;
72
    case FF_OPT_TYPE_INT64: *(int64_t   *)dst= llrint(num/den)*intnum; break;
73
    case FF_OPT_TYPE_FLOAT: *(float     *)dst= num*intnum/den;         break;
74
    case FF_OPT_TYPE_DOUBLE:*(double    *)dst= num*intnum/den;         break;
75
    case FF_OPT_TYPE_RATIONAL:
76
        if ((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den};
77
        else                 *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
78
        break;
79
    default:
80
        return AVERROR(EINVAL);
81
    }
82
    return 0;
83
}
84

    
85
static const AVOption *av_set_number(void *obj, const char *name, double num, int den, int64_t intnum)
86
{
87
    const AVOption *o = NULL;
88
    if (av_set_number2(obj, name, num, den, intnum, &o) < 0)
89
        return NULL;
90
    else
91
        return o;
92
}
93

    
94
static const double const_values[] = {
95
    M_PI,
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    M_E,
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    FF_QP2LAMBDA,
98
    0
99
};
100

    
101
static const char * const const_names[] = {
102
    "PI",
103
    "E",
104
    "QP2LAMBDA",
105
    0
106
};
107

    
108
static int hexchar2int(char c) {
109
    if (c >= '0' && c <= '9') return c - '0';
110
    if (c >= 'a' && c <= 'f') return c - 'a' + 10;
111
    if (c >= 'A' && c <= 'F') return c - 'A' + 10;
112
    return -1;
113
}
114

    
115
int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out)
116
{
117
    int ret;
118
    const AVOption *o= av_find_opt(obj, name, NULL, 0, 0);
119
    if (o_out)
120
        *o_out = o;
121
    if (!o)
122
        return AVERROR_OPTION_NOT_FOUND;
123
    if (!val || o->offset<=0)
124
        return AVERROR(EINVAL);
125

    
126
    if (o->type == FF_OPT_TYPE_BINARY) {
127
        uint8_t **dst = (uint8_t **)(((uint8_t*)obj) + o->offset);
128
        int *lendst = (int *)(dst + 1);
129
        uint8_t *bin, *ptr;
130
        int len = strlen(val);
131
        av_freep(dst);
132
        *lendst = 0;
133
        if (len & 1) return AVERROR(EINVAL);
134
        len /= 2;
135
        ptr = bin = av_malloc(len);
136
        while (*val) {
137
            int a = hexchar2int(*val++);
138
            int b = hexchar2int(*val++);
139
            if (a < 0 || b < 0) {
140
                av_free(bin);
141
                return AVERROR(EINVAL);
142
            }
143
            *ptr++ = (a << 4) | b;
144
        }
145
        *dst = bin;
146
        *lendst = len;
147
        return 0;
148
    }
149
    if (o->type != FF_OPT_TYPE_STRING) {
150
        int notfirst=0;
151
        for (;;) {
152
            int i;
153
            char buf[256];
154
            int cmd=0;
155
            double d;
156

    
157
            if (*val == '+' || *val == '-')
158
                cmd= *(val++);
159

    
160
            for (i=0; i<sizeof(buf)-1 && val[i] && val[i]!='+' && val[i]!='-'; i++)
161
                buf[i]= val[i];
162
            buf[i]=0;
163

    
164
            {
165
                const AVOption *o_named= av_find_opt(obj, buf, o->unit, 0, 0);
166
                if (o_named && o_named->type == FF_OPT_TYPE_CONST)
167
                    d= o_named->default_val;
168
                else if (!strcmp(buf, "default")) d= o->default_val;
169
                else if (!strcmp(buf, "max"    )) d= o->max;
170
                else if (!strcmp(buf, "min"    )) d= o->min;
171
                else if (!strcmp(buf, "none"   )) d= 0;
172
                else if (!strcmp(buf, "all"    )) d= ~0;
173
                else {
174
                    int res = av_expr_parse_and_eval(&d, buf, const_names, const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
175
                    if (res < 0) {
176
                        av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
177
                        return res;
178
                    }
179
                }
180
            }
181
            if (o->type == FF_OPT_TYPE_FLAGS) {
182
                if      (cmd=='+') d= av_get_int(obj, name, NULL) | (int64_t)d;
183
                else if (cmd=='-') d= av_get_int(obj, name, NULL) &~(int64_t)d;
184
            } else {
185
                if      (cmd=='+') d= notfirst*av_get_double(obj, name, NULL) + d;
186
                else if (cmd=='-') d= notfirst*av_get_double(obj, name, NULL) - d;
187
            }
188

    
189
            if ((ret = av_set_number2(obj, name, d, 1, 1, o_out)) < 0)
190
                return ret;
191
            val+= i;
192
            if (!*val)
193
                return 0;
194
            notfirst=1;
195
        }
196
        return AVERROR(EINVAL);
197
    }
198

    
199
    if (alloc) {
200
        av_free(*(void**)(((uint8_t*)obj) + o->offset));
201
        val= av_strdup(val);
202
    }
203

    
204
    memcpy(((uint8_t*)obj) + o->offset, &val, sizeof(val));
205
    return 0;
206
}
207

    
208
const AVOption *av_set_double(void *obj, const char *name, double n)
209
{
210
    return av_set_number(obj, name, n, 1, 1);
211
}
212

    
213
const AVOption *av_set_q(void *obj, const char *name, AVRational n)
214
{
215
    return av_set_number(obj, name, n.num, n.den, 1);
216
}
217

    
218
const AVOption *av_set_int(void *obj, const char *name, int64_t n)
219
{
220
    return av_set_number(obj, name, 1, 1, n);
221
}
222

    
223
/**
224
 *
225
 * @param buf a buffer which is used for returning non string values as strings, can be NULL
226
 * @param buf_len allocated length in bytes of buf
227
 */
228
const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len)
229
{
230
    const AVOption *o= av_find_opt(obj, name, NULL, 0, 0);
231
    void *dst;
232
    uint8_t *bin;
233
    int len, i;
234
    if (!o || o->offset<=0)
235
        return NULL;
236
    if (o->type != FF_OPT_TYPE_STRING && (!buf || !buf_len))
237
        return NULL;
238

    
239
    dst= ((uint8_t*)obj) + o->offset;
240
    if (o_out) *o_out= o;
241

    
242
    switch (o->type) {
243
    case FF_OPT_TYPE_FLAGS:     snprintf(buf, buf_len, "0x%08X",*(int    *)dst);break;
244
    case FF_OPT_TYPE_INT:       snprintf(buf, buf_len, "%d" , *(int    *)dst);break;
245
    case FF_OPT_TYPE_INT64:     snprintf(buf, buf_len, "%"PRId64, *(int64_t*)dst);break;
246
    case FF_OPT_TYPE_FLOAT:     snprintf(buf, buf_len, "%f" , *(float  *)dst);break;
247
    case FF_OPT_TYPE_DOUBLE:    snprintf(buf, buf_len, "%f" , *(double *)dst);break;
248
    case FF_OPT_TYPE_RATIONAL:  snprintf(buf, buf_len, "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
249
    case FF_OPT_TYPE_STRING:    return *(void**)dst;
250
    case FF_OPT_TYPE_BINARY:
251
        len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
252
        if (len >= (buf_len + 1)/2) return NULL;
253
        bin = *(uint8_t**)dst;
254
        for (i = 0; i < len; i++) snprintf(buf + i*2, 3, "%02X", bin[i]);
255
        break;
256
    default: return NULL;
257
    }
258
    return buf;
259
}
260

    
261
static int av_get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum)
262
{
263
    const AVOption *o= av_find_opt(obj, name, NULL, 0, 0);
264
    void *dst;
265
    if (!o || o->offset<=0)
266
        goto error;
267

    
268
    dst= ((uint8_t*)obj) + o->offset;
269

    
270
    if (o_out) *o_out= o;
271

    
272
    switch (o->type) {
273
    case FF_OPT_TYPE_FLAGS:     *intnum= *(unsigned int*)dst;return 0;
274
    case FF_OPT_TYPE_INT:       *intnum= *(int    *)dst;return 0;
275
    case FF_OPT_TYPE_INT64:     *intnum= *(int64_t*)dst;return 0;
276
    case FF_OPT_TYPE_FLOAT:     *num=    *(float  *)dst;return 0;
277
    case FF_OPT_TYPE_DOUBLE:    *num=    *(double *)dst;return 0;
278
    case FF_OPT_TYPE_RATIONAL:  *intnum= ((AVRational*)dst)->num;
279
                                *den   = ((AVRational*)dst)->den;
280
                                                        return 0;
281
    }
282
error:
283
    *den=*intnum=0;
284
    return -1;
285
}
286

    
287
double av_get_double(void *obj, const char *name, const AVOption **o_out)
288
{
289
    int64_t intnum=1;
290
    double num=1;
291
    int den=1;
292

    
293
    av_get_number(obj, name, o_out, &num, &den, &intnum);
294
    return num*intnum/den;
295
}
296

    
297
AVRational av_get_q(void *obj, const char *name, const AVOption **o_out)
298
{
299
    int64_t intnum=1;
300
    double num=1;
301
    int den=1;
302

    
303
    av_get_number(obj, name, o_out, &num, &den, &intnum);
304
    if (num == 1.0 && (int)intnum == intnum)
305
        return (AVRational){intnum, den};
306
    else
307
        return av_d2q(num*intnum/den, 1<<24);
308
}
309

    
310
int64_t av_get_int(void *obj, const char *name, const AVOption **o_out)
311
{
312
    int64_t intnum=1;
313
    double num=1;
314
    int den=1;
315

    
316
    av_get_number(obj, name, o_out, &num, &den, &intnum);
317
    return num*intnum/den;
318
}
319

    
320
static void opt_list(void *obj, void *av_log_obj, const char *unit,
321
                     int req_flags, int rej_flags)
322
{
323
    const AVOption *opt=NULL;
324

    
325
    while ((opt= av_next_option(obj, opt))) {
326
        if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
327
            continue;
328

    
329
        /* Don't print CONST's on level one.
330
         * Don't print anything but CONST's on level two.
331
         * Only print items from the requested unit.
332
         */
333
        if (!unit && opt->type==FF_OPT_TYPE_CONST)
334
            continue;
335
        else if (unit && opt->type!=FF_OPT_TYPE_CONST)
336
            continue;
337
        else if (unit && opt->type==FF_OPT_TYPE_CONST && strcmp(unit, opt->unit))
338
            continue;
339
        else if (unit && opt->type == FF_OPT_TYPE_CONST)
340
            av_log(av_log_obj, AV_LOG_INFO, "   %-15s ", opt->name);
341
        else
342
            av_log(av_log_obj, AV_LOG_INFO, "-%-17s ", opt->name);
343

    
344
        switch (opt->type) {
345
            case FF_OPT_TYPE_FLAGS:
346
                av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<flags>");
347
                break;
348
            case FF_OPT_TYPE_INT:
349
                av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<int>");
350
                break;
351
            case FF_OPT_TYPE_INT64:
352
                av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<int64>");
353
                break;
354
            case FF_OPT_TYPE_DOUBLE:
355
                av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<double>");
356
                break;
357
            case FF_OPT_TYPE_FLOAT:
358
                av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<float>");
359
                break;
360
            case FF_OPT_TYPE_STRING:
361
                av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<string>");
362
                break;
363
            case FF_OPT_TYPE_RATIONAL:
364
                av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<rational>");
365
                break;
366
            case FF_OPT_TYPE_BINARY:
367
                av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<binary>");
368
                break;
369
            case FF_OPT_TYPE_CONST:
370
            default:
371
                av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "");
372
                break;
373
        }
374
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
375
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
376
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM   ) ? 'V' : '.');
377
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM   ) ? 'A' : '.');
378
        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
379

    
380
        if (opt->help)
381
            av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
382
        av_log(av_log_obj, AV_LOG_INFO, "\n");
383
        if (opt->unit && opt->type != FF_OPT_TYPE_CONST) {
384
            opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
385
        }
386
    }
387
}
388

    
389
int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
390
{
391
    if (!obj)
392
        return -1;
393

    
394
    av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
395

    
396
    opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
397

    
398
    return 0;
399
}
400

    
401
/** Set the values of the AVCodecContext or AVFormatContext structure.
402
 * They are set to the defaults specified in the according AVOption options
403
 * array default_val field.
404
 *
405
 * @param s AVCodecContext or AVFormatContext for which the defaults will be set
406
 */
407
void av_opt_set_defaults2(void *s, int mask, int flags)
408
{
409
    const AVOption *opt = NULL;
410
    while ((opt = av_next_option(s, opt)) != NULL) {
411
        if ((opt->flags & mask) != flags)
412
            continue;
413
        switch (opt->type) {
414
            case FF_OPT_TYPE_CONST:
415
                /* Nothing to be done here */
416
            break;
417
            case FF_OPT_TYPE_FLAGS:
418
            case FF_OPT_TYPE_INT: {
419
                int val;
420
                val = opt->default_val;
421
                av_set_int(s, opt->name, val);
422
            }
423
            break;
424
            case FF_OPT_TYPE_INT64:
425
                if ((double)(opt->default_val+0.6) == opt->default_val)
426
                    av_log(s, AV_LOG_DEBUG, "loss of precision in default of %s\n", opt->name);
427
                av_set_int(s, opt->name, opt->default_val);
428
            break;
429
            case FF_OPT_TYPE_DOUBLE:
430
            case FF_OPT_TYPE_FLOAT: {
431
                double val;
432
                val = opt->default_val;
433
                av_set_double(s, opt->name, val);
434
            }
435
            break;
436
            case FF_OPT_TYPE_RATIONAL: {
437
                AVRational val;
438
                val = av_d2q(opt->default_val, INT_MAX);
439
                av_set_q(s, opt->name, val);
440
            }
441
            break;
442
            case FF_OPT_TYPE_STRING:
443
            case FF_OPT_TYPE_BINARY:
444
                /* Cannot set default for string as default_val is of type * double */
445
            break;
446
            default:
447
                av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
448
        }
449
    }
450
}
451

    
452
void av_opt_set_defaults(void *s)
453
{
454
    av_opt_set_defaults2(s, 0, 0);
455
}
456

    
457
/**
458
 * Store the value in the field in ctx that is named like key.
459
 * ctx must be an AVClass context, storing is done using AVOptions.
460
 *
461
 * @param buf the string to parse, buf will be updated to point at the
462
 * separator just after the parsed key/value pair
463
 * @param key_val_sep a 0-terminated list of characters used to
464
 * separate key from value
465
 * @param pairs_sep a 0-terminated list of characters used to separate
466
 * two pairs from each other
467
 * @return 0 if the key/value pair has been successfully parsed and
468
 * set, or a negative value corresponding to an AVERROR code in case
469
 * of error:
470
 * AVERROR(EINVAL) if the key/value pair cannot be parsed,
471
 * the error code issued by av_set_string3() if the key/value pair
472
 * cannot be set
473
 */
474
static int parse_key_value_pair(void *ctx, const char **buf,
475
                                const char *key_val_sep, const char *pairs_sep)
476
{
477
    char *key = av_get_token(buf, key_val_sep);
478
    char *val;
479
    int ret;
480

    
481
    if (*key && strspn(*buf, key_val_sep)) {
482
        (*buf)++;
483
        val = av_get_token(buf, pairs_sep);
484
    } else {
485
        av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
486
        av_free(key);
487
        return AVERROR(EINVAL);
488
    }
489

    
490
    av_log(ctx, AV_LOG_DEBUG, "Setting value '%s' for key '%s'\n", val, key);
491

    
492
    ret = av_set_string3(ctx, key, val, 1, NULL);
493
    if (ret == AVERROR_OPTION_NOT_FOUND)
494
        av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
495

    
496
    av_free(key);
497
    av_free(val);
498
    return ret;
499
}
500

    
501
int av_set_options_string(void *ctx, const char *opts,
502
                          const char *key_val_sep, const char *pairs_sep)
503
{
504
    int ret, count = 0;
505

    
506
    while (*opts) {
507
        if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
508
            return ret;
509
        count++;
510

    
511
        if (*opts)
512
            opts++;
513
    }
514

    
515
    return count;
516
}
517

    
518
#ifdef TEST
519

    
520
#undef printf
521

    
522
typedef struct TestContext
523
{
524
    const AVClass *class;
525
    int num;
526
    int toggle;
527
    char *string;
528
    int flags;
529
    AVRational rational;
530
} TestContext;
531

    
532
#define OFFSET(x) offsetof(TestContext, x)
533

    
534
#define TEST_FLAG_COOL 01
535
#define TEST_FLAG_LAME 02
536
#define TEST_FLAG_MU   04
537

    
538
static const AVOption test_options[]= {
539
{"num",      "set num",        OFFSET(num),      FF_OPT_TYPE_INT,      0,              0,        100                 },
540
{"toggle",   "set toggle",     OFFSET(toggle),   FF_OPT_TYPE_INT,      0,              0,        1                   },
541
{"rational", "set rational",   OFFSET(rational), FF_OPT_TYPE_RATIONAL, 0,              0,        10                  },
542
{"string",   "set string",     OFFSET(string),   FF_OPT_TYPE_STRING,   0,              CHAR_MIN, CHAR_MAX            },
543
{"flags",    "set flags",      OFFSET(flags),    FF_OPT_TYPE_FLAGS,    0,              0,        INT_MAX, 0, "flags" },
544
{"cool",     "set cool flag ", 0,                FF_OPT_TYPE_CONST,    TEST_FLAG_COOL, INT_MIN,  INT_MAX, 0, "flags" },
545
{"lame",     "set lame flag ", 0,                FF_OPT_TYPE_CONST,    TEST_FLAG_LAME, INT_MIN,  INT_MAX, 0, "flags" },
546
{"mu",       "set mu flag ",   0,                FF_OPT_TYPE_CONST,    TEST_FLAG_MU,   INT_MIN,  INT_MAX, 0, "flags" },
547
{NULL},
548
};
549

    
550
static const char *test_get_name(void *ctx)
551
{
552
    return "test";
553
}
554

    
555
static const AVClass test_class = {
556
    "TestContext",
557
    test_get_name,
558
    test_options
559
};
560

    
561
int main(void)
562
{
563
    int i;
564

    
565
    printf("\nTesting av_set_options_string()\n");
566
    {
567
        TestContext test_ctx;
568
        const char *options[] = {
569
            "",
570
            ":",
571
            "=",
572
            "foo=:",
573
            ":=foo",
574
            "=foo",
575
            "foo=",
576
            "foo",
577
            "foo=val",
578
            "foo==val",
579
            "toggle=:",
580
            "string=:",
581
            "toggle=1 : foo",
582
            "toggle=100",
583
            "toggle==1",
584
            "flags=+mu-lame : num=42: toggle=0",
585
            "num=42 : string=blahblah",
586
            "rational=0 : rational=1/2 : rational=1/-1",
587
            "rational=-1/0",
588
        };
589

    
590
        test_ctx.class = &test_class;
591
        av_opt_set_defaults2(&test_ctx, 0, 0);
592
        test_ctx.string = av_strdup("default");
593

    
594
        av_log_set_level(AV_LOG_DEBUG);
595

    
596
        for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
597
            av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
598
            if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
599
                av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
600
            printf("\n");
601
        }
602
    }
603

    
604
    return 0;
605
}
606

    
607
#endif