| 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 |
| 45 | const 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 |
| 58 | const AVOption *av_next_option(void *obj, const AVOption *last) |
| 59 | { |
| 60 | return av_opt_next(obj, last); |
| 61 | } |
| 62 | #endif |
| 63 | |
| 64 | const 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 | |
| 74 | static 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 | |
| 94 | static 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 | |
| 132 | static 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 | |
| 139 | static 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 | |
| 168 | static 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 | |
| 181 | static 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 | |
| 268 | static 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 | |
| 283 | static 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 | |
| 296 | static 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 | |
| 311 | static 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 | |
| 351 | static 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 | |
| 357 | static 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 |
| 364 | int 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 | |
| 373 | int 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 | |
| 446 | OPT_EVAL_NUMBER(flags, AV_OPT_TYPE_FLAGS, int) |
| 447 | OPT_EVAL_NUMBER(int, AV_OPT_TYPE_INT, int) |
| 448 | OPT_EVAL_NUMBER(int64, AV_OPT_TYPE_INT64, int64_t) |
| 449 | OPT_EVAL_NUMBER(float, AV_OPT_TYPE_FLOAT, float) |
| 450 | OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE, double) |
| 451 | OPT_EVAL_NUMBER(q, AV_OPT_TYPE_RATIONAL, AVRational) |
| 452 | |
| 453 | static 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 |
| 470 | const 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 | |
| 478 | const 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 | |
| 486 | const 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 | |
| 495 | int 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 | |
| 500 | int 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 | |
| 505 | int 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 | |
| 510 | int 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 | |
| 540 | int 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 | |
| 562 | int 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 | |
| 579 | static 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 | |
| 608 | int 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 | |
| 613 | int 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 | |
| 618 | int 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 | */ |
| 640 | const 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 | |
| 675 | int 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 | |
| 693 | int 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 | |
| 764 | static 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 | |
| 778 | error: |
| 779 | *den=*intnum=0; |
| 780 | return -1; |
| 781 | } |
| 782 | |
| 783 | #if FF_API_OLD_AVOPTIONS |
| 784 | double 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 | |
| 795 | AVRational 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 | |
| 809 | int64_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 | |
| 821 | int 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 | |
| 833 | int 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 | |
| 845 | int 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 | |
| 861 | int 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 | |
| 879 | int 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 | |
| 895 | static 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 | |
| 913 | int 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 | |
| 918 | int 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 | |
| 923 | int 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 | |
| 940 | int 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 | |
| 957 | int 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 | |
| 970 | static 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 | |
| 1003 | static 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 | |
| 1164 | int 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 | |
| 1176 | void av_opt_set_defaults(void *s) |
| 1177 | { |
| 1178 | #if FF_API_OLD_AVOPTIONS |
| 1179 | av_opt_set_defaults2(s, 0, 0); |
| 1180 | } |
| 1181 | |
| 1182 | void 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 | */ |
| 1265 | static 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 | |
| 1299 | int 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 | |
| 1321 | static 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 | */ |
| 1336 | static 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 | |
| 1357 | int 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 | |
| 1379 | int 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 | |
| 1431 | void 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 | |
| 1451 | int 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 | |
| 1475 | int av_opt_set_dict(void *obj, AVDictionary **options) |
| 1476 | { |
| 1477 | return av_opt_set_dict2(obj, options, 0); |
| 1478 | } |
| 1479 | |
| 1480 | const 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 | |
| 1486 | const 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 | |
| 1530 | void *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 | |
| 1538 | const 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 | |
| 1545 | void *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 | |
| 1553 | static 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 | |
| 1575 | int 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 | |
| 1619 | int 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 | |
| 1640 | int 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; |
| 1703 | fail: |
| 1704 | av_free(ranges); |
| 1705 | av_free(range); |
| 1706 | av_free(range_array); |
| 1707 | return ret; |
| 1708 | } |
| 1709 | |
| 1710 | void 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 | |
| 1731 | typedef 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 | |
| 1754 | static 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 | |
| 1773 | static const char *test_get_name(void *ctx) |
| 1774 | { |
| 1775 | return "test"; |
| 1776 | } |
| 1777 | |
| 1778 | static const AVClass test_class = { |
| 1779 | "TestContext", |
| 1780 | test_get_name, |
| 1781 | test_options |
| 1782 | }; |
| 1783 | |
| 1784 | int 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 |