| 1 | /* |
| 2 | * Various utilities for command line tools |
| 3 | * copyright (c) 2003 Fabrice Bellard |
| 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 | #ifndef FFMPEG_CMDUTILS_H |
| 23 | #define FFMPEG_CMDUTILS_H |
| 24 | |
| 25 | #include <stdint.h> |
| 26 | |
| 27 | #include "config.h" |
| 28 | #include "libavcodec/avcodec.h" |
| 29 | #include "libavfilter/avfilter.h" |
| 30 | #include "libavformat/avformat.h" |
| 31 | #include "libswscale/swscale.h" |
| 32 | |
| 33 | #ifdef _WIN32 |
| 34 | #undef main /* We don't want SDL to override our main() */ |
| 35 | #endif |
| 36 | |
| 37 | /** |
| 38 | * program name, defined by the program for show_version(). |
| 39 | */ |
| 40 | extern const char program_name[]; |
| 41 | |
| 42 | /** |
| 43 | * program birth year, defined by the program for show_banner() |
| 44 | */ |
| 45 | extern const int program_birth_year; |
| 46 | |
| 47 | extern AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB]; |
| 48 | extern AVFormatContext *avformat_opts; |
| 49 | extern struct SwsContext *sws_opts; |
| 50 | extern AVDictionary *swr_opts; |
| 51 | extern AVDictionary *format_opts, *codec_opts, *resample_opts; |
| 52 | extern int hide_banner; |
| 53 | |
| 54 | /** |
| 55 | * Register a program-specific cleanup routine. |
| 56 | */ |
| 57 | void register_exit(void (*cb)(int ret)); |
| 58 | |
| 59 | /** |
| 60 | * Wraps exit with a program-specific cleanup routine. |
| 61 | */ |
| 62 | void exit_program(int ret) av_noreturn; |
| 63 | |
| 64 | /** |
| 65 | * Initialize the cmdutils option system, in particular |
| 66 | * allocate the *_opts contexts. |
| 67 | */ |
| 68 | void init_opts(void); |
| 69 | /** |
| 70 | * Uninitialize the cmdutils option system, in particular |
| 71 | * free the *_opts contexts and their contents. |
| 72 | */ |
| 73 | void uninit_opts(void); |
| 74 | |
| 75 | /** |
| 76 | * Trivial log callback. |
| 77 | * Only suitable for opt_help and similar since it lacks prefix handling. |
| 78 | */ |
| 79 | void log_callback_help(void* ptr, int level, const char* fmt, va_list vl); |
| 80 | |
| 81 | /** |
| 82 | * Override the cpuflags. |
| 83 | */ |
| 84 | int opt_cpuflags(void *optctx, const char *opt, const char *arg); |
| 85 | |
| 86 | /** |
| 87 | * Fallback for options that are not explicitly handled, these will be |
| 88 | * parsed through AVOptions. |
| 89 | */ |
| 90 | int opt_default(void *optctx, const char *opt, const char *arg); |
| 91 | |
| 92 | /** |
| 93 | * Set the libav* libraries log level. |
| 94 | */ |
| 95 | int opt_loglevel(void *optctx, const char *opt, const char *arg); |
| 96 | |
| 97 | int opt_report(const char *opt); |
| 98 | |
| 99 | int opt_max_alloc(void *optctx, const char *opt, const char *arg); |
| 100 | |
| 101 | int opt_codec_debug(void *optctx, const char *opt, const char *arg); |
| 102 | |
| 103 | #if CONFIG_OPENCL |
| 104 | int opt_opencl(void *optctx, const char *opt, const char *arg); |
| 105 | |
| 106 | int opt_opencl_bench(void *optctx, const char *opt, const char *arg); |
| 107 | #endif |
| 108 | |
| 109 | /** |
| 110 | * Limit the execution time. |
| 111 | */ |
| 112 | int opt_timelimit(void *optctx, const char *opt, const char *arg); |
| 113 | |
| 114 | /** |
| 115 | * Parse a string and return its corresponding value as a double. |
| 116 | * Exit from the application if the string cannot be correctly |
| 117 | * parsed or the corresponding value is invalid. |
| 118 | * |
| 119 | * @param context the context of the value to be set (e.g. the |
| 120 | * corresponding command line option name) |
| 121 | * @param numstr the string to be parsed |
| 122 | * @param type the type (OPT_INT64 or OPT_FLOAT) as which the |
| 123 | * string should be parsed |
| 124 | * @param min the minimum valid accepted value |
| 125 | * @param max the maximum valid accepted value |
| 126 | */ |
| 127 | double parse_number_or_die(const char *context, const char *numstr, int type, |
| 128 | double min, double max); |
| 129 | |
| 130 | /** |
| 131 | * Parse a string specifying a time and return its corresponding |
| 132 | * value as a number of microseconds. Exit from the application if |
| 133 | * the string cannot be correctly parsed. |
| 134 | * |
| 135 | * @param context the context of the value to be set (e.g. the |
| 136 | * corresponding command line option name) |
| 137 | * @param timestr the string to be parsed |
| 138 | * @param is_duration a flag which tells how to interpret timestr, if |
| 139 | * not zero timestr is interpreted as a duration, otherwise as a |
| 140 | * date |
| 141 | * |
| 142 | * @see av_parse_time() |
| 143 | */ |
| 144 | int64_t parse_time_or_die(const char *context, const char *timestr, |
| 145 | int is_duration); |
| 146 | |
| 147 | typedef struct SpecifierOpt { |
| 148 | char *specifier; /**< stream/chapter/program/... specifier */ |
| 149 | union { |
| 150 | uint8_t *str; |
| 151 | int i; |
| 152 | int64_t i64; |
| 153 | float f; |
| 154 | double dbl; |
| 155 | } u; |
| 156 | } SpecifierOpt; |
| 157 | |
| 158 | typedef struct OptionDef { |
| 159 | const char *name; |
| 160 | int flags; |
| 161 | #define HAS_ARG 0x0001 |
| 162 | #define OPT_BOOL 0x0002 |
| 163 | #define OPT_EXPERT 0x0004 |
| 164 | #define OPT_STRING 0x0008 |
| 165 | #define OPT_VIDEO 0x0010 |
| 166 | #define OPT_AUDIO 0x0020 |
| 167 | #define OPT_INT 0x0080 |
| 168 | #define OPT_FLOAT 0x0100 |
| 169 | #define OPT_SUBTITLE 0x0200 |
| 170 | #define OPT_INT64 0x0400 |
| 171 | #define OPT_EXIT 0x0800 |
| 172 | #define OPT_DATA 0x1000 |
| 173 | #define OPT_PERFILE 0x2000 /* the option is per-file (currently ffmpeg-only). |
| 174 | implied by OPT_OFFSET or OPT_SPEC */ |
| 175 | #define OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */ |
| 176 | #define OPT_SPEC 0x8000 /* option is to be stored in an array of SpecifierOpt. |
| 177 | Implies OPT_OFFSET. Next element after the offset is |
| 178 | an int containing element count in the array. */ |
| 179 | #define OPT_TIME 0x10000 |
| 180 | #define OPT_DOUBLE 0x20000 |
| 181 | #define OPT_INPUT 0x40000 |
| 182 | #define OPT_OUTPUT 0x80000 |
| 183 | union { |
| 184 | void *dst_ptr; |
| 185 | int (*func_arg)(void *, const char *, const char *); |
| 186 | size_t off; |
| 187 | } u; |
| 188 | const char *help; |
| 189 | const char *argname; |
| 190 | } OptionDef; |
| 191 | |
| 192 | /** |
| 193 | * Print help for all options matching specified flags. |
| 194 | * |
| 195 | * @param options a list of options |
| 196 | * @param msg title of this group. Only printed if at least one option matches. |
| 197 | * @param req_flags print only options which have all those flags set. |
| 198 | * @param rej_flags don't print options which have any of those flags set. |
| 199 | * @param alt_flags print only options that have at least one of those flags set |
| 200 | */ |
| 201 | void show_help_options(const OptionDef *options, const char *msg, int req_flags, |
| 202 | int rej_flags, int alt_flags); |
| 203 | |
| 204 | /** |
| 205 | * Show help for all options with given flags in class and all its |
| 206 | * children. |
| 207 | */ |
| 208 | void show_help_children(const AVClass *class, int flags); |
| 209 | |
| 210 | /** |
| 211 | * Per-fftool specific help handler. Implemented in each |
| 212 | * fftool, called by show_help(). |
| 213 | */ |
| 214 | void show_help_default(const char *opt, const char *arg); |
| 215 | |
| 216 | /** |
| 217 | * Generic -h handler common to all fftools. |
| 218 | */ |
| 219 | int show_help(void *optctx, const char *opt, const char *arg); |
| 220 | |
| 221 | /** |
| 222 | * Parse the command line arguments. |
| 223 | * |
| 224 | * @param optctx an opaque options context |
| 225 | * @param argc number of command line arguments |
| 226 | * @param argv values of command line arguments |
| 227 | * @param options Array with the definitions required to interpret every |
| 228 | * option of the form: -option_name [argument] |
| 229 | * @param parse_arg_function Name of the function called to process every |
| 230 | * argument without a leading option name flag. NULL if such arguments do |
| 231 | * not have to be processed. |
| 232 | */ |
| 233 | void parse_options(void *optctx, int argc, char **argv, const OptionDef *options, |
| 234 | void (* parse_arg_function)(void *optctx, const char*)); |
| 235 | |
| 236 | /** |
| 237 | * Parse one given option. |
| 238 | * |
| 239 | * @return on success 1 if arg was consumed, 0 otherwise; negative number on error |
| 240 | */ |
| 241 | int parse_option(void *optctx, const char *opt, const char *arg, |
| 242 | const OptionDef *options); |
| 243 | |
| 244 | /** |
| 245 | * An option extracted from the commandline. |
| 246 | * Cannot use AVDictionary because of options like -map which can be |
| 247 | * used multiple times. |
| 248 | */ |
| 249 | typedef struct Option { |
| 250 | const OptionDef *opt; |
| 251 | const char *key; |
| 252 | const char *val; |
| 253 | } Option; |
| 254 | |
| 255 | typedef struct OptionGroupDef { |
| 256 | /**< group name */ |
| 257 | const char *name; |
| 258 | /** |
| 259 | * Option to be used as group separator. Can be NULL for groups which |
| 260 | * are terminated by a non-option argument (e.g. ffmpeg output files) |
| 261 | */ |
| 262 | const char *sep; |
| 263 | /** |
| 264 | * Option flags that must be set on each option that is |
| 265 | * applied to this group |
| 266 | */ |
| 267 | int flags; |
| 268 | } OptionGroupDef; |
| 269 | |
| 270 | typedef struct OptionGroup { |
| 271 | const OptionGroupDef *group_def; |
| 272 | const char *arg; |
| 273 | |
| 274 | Option *opts; |
| 275 | int nb_opts; |
| 276 | |
| 277 | AVDictionary *codec_opts; |
| 278 | AVDictionary *format_opts; |
| 279 | AVDictionary *resample_opts; |
| 280 | struct SwsContext *sws_opts; |
| 281 | AVDictionary *swr_opts; |
| 282 | } OptionGroup; |
| 283 | |
| 284 | /** |
| 285 | * A list of option groups that all have the same group type |
| 286 | * (e.g. input files or output files) |
| 287 | */ |
| 288 | typedef struct OptionGroupList { |
| 289 | const OptionGroupDef *group_def; |
| 290 | |
| 291 | OptionGroup *groups; |
| 292 | int nb_groups; |
| 293 | } OptionGroupList; |
| 294 | |
| 295 | typedef struct OptionParseContext { |
| 296 | OptionGroup global_opts; |
| 297 | |
| 298 | OptionGroupList *groups; |
| 299 | int nb_groups; |
| 300 | |
| 301 | /* parsing state */ |
| 302 | OptionGroup cur_group; |
| 303 | } OptionParseContext; |
| 304 | |
| 305 | /** |
| 306 | * Parse an options group and write results into optctx. |
| 307 | * |
| 308 | * @param optctx an app-specific options context. NULL for global options group |
| 309 | */ |
| 310 | int parse_optgroup(void *optctx, OptionGroup *g); |
| 311 | |
| 312 | /** |
| 313 | * Split the commandline into an intermediate form convenient for further |
| 314 | * processing. |
| 315 | * |
| 316 | * The commandline is assumed to be composed of options which either belong to a |
| 317 | * group (those with OPT_SPEC, OPT_OFFSET or OPT_PERFILE) or are global |
| 318 | * (everything else). |
| 319 | * |
| 320 | * A group (defined by an OptionGroupDef struct) is a sequence of options |
| 321 | * terminated by either a group separator option (e.g. -i) or a parameter that |
| 322 | * is not an option (doesn't start with -). A group without a separator option |
| 323 | * must always be first in the supplied groups list. |
| 324 | * |
| 325 | * All options within the same group are stored in one OptionGroup struct in an |
| 326 | * OptionGroupList, all groups with the same group definition are stored in one |
| 327 | * OptionGroupList in OptionParseContext.groups. The order of group lists is the |
| 328 | * same as the order of group definitions. |
| 329 | */ |
| 330 | int split_commandline(OptionParseContext *octx, int argc, char *argv[], |
| 331 | const OptionDef *options, |
| 332 | const OptionGroupDef *groups, int nb_groups); |
| 333 | |
| 334 | /** |
| 335 | * Free all allocated memory in an OptionParseContext. |
| 336 | */ |
| 337 | void uninit_parse_context(OptionParseContext *octx); |
| 338 | |
| 339 | /** |
| 340 | * Find the '-loglevel' option in the command line args and apply it. |
| 341 | */ |
| 342 | void parse_loglevel(int argc, char **argv, const OptionDef *options); |
| 343 | |
| 344 | /** |
| 345 | * Return index of option opt in argv or 0 if not found. |
| 346 | */ |
| 347 | int locate_option(int argc, char **argv, const OptionDef *options, |
| 348 | const char *optname); |
| 349 | |
| 350 | /** |
| 351 | * Check if the given stream matches a stream specifier. |
| 352 | * |
| 353 | * @param s Corresponding format context. |
| 354 | * @param st Stream from s to be checked. |
| 355 | * @param spec A stream specifier of the [v|a|s|d]:[\<stream index\>] form. |
| 356 | * |
| 357 | * @return 1 if the stream matches, 0 if it doesn't, <0 on error |
| 358 | */ |
| 359 | int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec); |
| 360 | |
| 361 | /** |
| 362 | * Filter out options for given codec. |
| 363 | * |
| 364 | * Create a new options dictionary containing only the options from |
| 365 | * opts which apply to the codec with ID codec_id. |
| 366 | * |
| 367 | * @param opts dictionary to place options in |
| 368 | * @param codec_id ID of the codec that should be filtered for |
| 369 | * @param s Corresponding format context. |
| 370 | * @param st A stream from s for which the options should be filtered. |
| 371 | * @param codec The particular codec for which the options should be filtered. |
| 372 | * If null, the default one is looked up according to the codec id. |
| 373 | * @return a pointer to the created dictionary |
| 374 | */ |
| 375 | AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id, |
| 376 | AVFormatContext *s, AVStream *st, AVCodec *codec); |
| 377 | |
| 378 | /** |
| 379 | * Setup AVCodecContext options for avformat_find_stream_info(). |
| 380 | * |
| 381 | * Create an array of dictionaries, one dictionary for each stream |
| 382 | * contained in s. |
| 383 | * Each dictionary will contain the options from codec_opts which can |
| 384 | * be applied to the corresponding stream codec context. |
| 385 | * |
| 386 | * @return pointer to the created array of dictionaries, NULL if it |
| 387 | * cannot be created |
| 388 | */ |
| 389 | AVDictionary **setup_find_stream_info_opts(AVFormatContext *s, |
| 390 | AVDictionary *codec_opts); |
| 391 | |
| 392 | /** |
| 393 | * Print an error message to stderr, indicating filename and a human |
| 394 | * readable description of the error code err. |
| 395 | * |
| 396 | * If strerror_r() is not available the use of this function in a |
| 397 | * multithreaded application may be unsafe. |
| 398 | * |
| 399 | * @see av_strerror() |
| 400 | */ |
| 401 | void print_error(const char *filename, int err); |
| 402 | |
| 403 | /** |
| 404 | * Print the program banner to stderr. The banner contents depend on the |
| 405 | * current version of the repository and of the libav* libraries used by |
| 406 | * the program. |
| 407 | */ |
| 408 | void show_banner(int argc, char **argv, const OptionDef *options); |
| 409 | |
| 410 | /** |
| 411 | * Print the version of the program to stdout. The version message |
| 412 | * depends on the current versions of the repository and of the libav* |
| 413 | * libraries. |
| 414 | * This option processing function does not utilize the arguments. |
| 415 | */ |
| 416 | int show_version(void *optctx, const char *opt, const char *arg); |
| 417 | |
| 418 | /** |
| 419 | * Print the build configuration of the program to stdout. The contents |
| 420 | * depend on the definition of FFMPEG_CONFIGURATION. |
| 421 | * This option processing function does not utilize the arguments. |
| 422 | */ |
| 423 | int show_buildconf(void *optctx, const char *opt, const char *arg); |
| 424 | |
| 425 | /** |
| 426 | * Print the license of the program to stdout. The license depends on |
| 427 | * the license of the libraries compiled into the program. |
| 428 | * This option processing function does not utilize the arguments. |
| 429 | */ |
| 430 | int show_license(void *optctx, const char *opt, const char *arg); |
| 431 | |
| 432 | /** |
| 433 | * Print a listing containing all the formats supported by the |
| 434 | * program (including devices). |
| 435 | * This option processing function does not utilize the arguments. |
| 436 | */ |
| 437 | int show_formats(void *optctx, const char *opt, const char *arg); |
| 438 | |
| 439 | /** |
| 440 | * Print a listing containing all the devices supported by the |
| 441 | * program. |
| 442 | * This option processing function does not utilize the arguments. |
| 443 | */ |
| 444 | int show_devices(void *optctx, const char *opt, const char *arg); |
| 445 | |
| 446 | #if CONFIG_AVDEVICE |
| 447 | /** |
| 448 | * Print a listing containing audodetected sinks of the output device. |
| 449 | * Device name with options may be passed as an argument to limit results. |
| 450 | */ |
| 451 | int show_sinks(void *optctx, const char *opt, const char *arg); |
| 452 | |
| 453 | /** |
| 454 | * Print a listing containing audodetected sources of the input device. |
| 455 | * Device name with options may be passed as an argument to limit results. |
| 456 | */ |
| 457 | int show_sources(void *optctx, const char *opt, const char *arg); |
| 458 | #endif |
| 459 | |
| 460 | /** |
| 461 | * Print a listing containing all the codecs supported by the |
| 462 | * program. |
| 463 | * This option processing function does not utilize the arguments. |
| 464 | */ |
| 465 | int show_codecs(void *optctx, const char *opt, const char *arg); |
| 466 | |
| 467 | /** |
| 468 | * Print a listing containing all the decoders supported by the |
| 469 | * program. |
| 470 | */ |
| 471 | int show_decoders(void *optctx, const char *opt, const char *arg); |
| 472 | |
| 473 | /** |
| 474 | * Print a listing containing all the encoders supported by the |
| 475 | * program. |
| 476 | */ |
| 477 | int show_encoders(void *optctx, const char *opt, const char *arg); |
| 478 | |
| 479 | /** |
| 480 | * Print a listing containing all the filters supported by the |
| 481 | * program. |
| 482 | * This option processing function does not utilize the arguments. |
| 483 | */ |
| 484 | int show_filters(void *optctx, const char *opt, const char *arg); |
| 485 | |
| 486 | /** |
| 487 | * Print a listing containing all the bit stream filters supported by the |
| 488 | * program. |
| 489 | * This option processing function does not utilize the arguments. |
| 490 | */ |
| 491 | int show_bsfs(void *optctx, const char *opt, const char *arg); |
| 492 | |
| 493 | /** |
| 494 | * Print a listing containing all the protocols supported by the |
| 495 | * program. |
| 496 | * This option processing function does not utilize the arguments. |
| 497 | */ |
| 498 | int show_protocols(void *optctx, const char *opt, const char *arg); |
| 499 | |
| 500 | /** |
| 501 | * Print a listing containing all the pixel formats supported by the |
| 502 | * program. |
| 503 | * This option processing function does not utilize the arguments. |
| 504 | */ |
| 505 | int show_pix_fmts(void *optctx, const char *opt, const char *arg); |
| 506 | |
| 507 | /** |
| 508 | * Print a listing containing all the standard channel layouts supported by |
| 509 | * the program. |
| 510 | * This option processing function does not utilize the arguments. |
| 511 | */ |
| 512 | int show_layouts(void *optctx, const char *opt, const char *arg); |
| 513 | |
| 514 | /** |
| 515 | * Print a listing containing all the sample formats supported by the |
| 516 | * program. |
| 517 | */ |
| 518 | int show_sample_fmts(void *optctx, const char *opt, const char *arg); |
| 519 | |
| 520 | /** |
| 521 | * Print a listing containing all the color names and values recognized |
| 522 | * by the program. |
| 523 | */ |
| 524 | int show_colors(void *optctx, const char *opt, const char *arg); |
| 525 | |
| 526 | /** |
| 527 | * Return a positive value if a line read from standard input |
| 528 | * starts with [yY], otherwise return 0. |
| 529 | */ |
| 530 | int read_yesno(void); |
| 531 | |
| 532 | /** |
| 533 | * Read the file with name filename, and put its content in a newly |
| 534 | * allocated 0-terminated buffer. |
| 535 | * |
| 536 | * @param filename file to read from |
| 537 | * @param bufptr location where pointer to buffer is returned |
| 538 | * @param size location where size of buffer is returned |
| 539 | * @return >= 0 in case of success, a negative value corresponding to an |
| 540 | * AVERROR error code in case of failure. |
| 541 | */ |
| 542 | int cmdutils_read_file(const char *filename, char **bufptr, size_t *size); |
| 543 | |
| 544 | /** |
| 545 | * Get a file corresponding to a preset file. |
| 546 | * |
| 547 | * If is_path is non-zero, look for the file in the path preset_name. |
| 548 | * Otherwise search for a file named arg.ffpreset in the directories |
| 549 | * $FFMPEG_DATADIR (if set), $HOME/.ffmpeg, and in the datadir defined |
| 550 | * at configuration time or in a "ffpresets" folder along the executable |
| 551 | * on win32, in that order. If no such file is found and |
| 552 | * codec_name is defined, then search for a file named |
| 553 | * codec_name-preset_name.avpreset in the above-mentioned directories. |
| 554 | * |
| 555 | * @param filename buffer where the name of the found filename is written |
| 556 | * @param filename_size size in bytes of the filename buffer |
| 557 | * @param preset_name name of the preset to search |
| 558 | * @param is_path tell if preset_name is a filename path |
| 559 | * @param codec_name name of the codec for which to look for the |
| 560 | * preset, may be NULL |
| 561 | */ |
| 562 | FILE *get_preset_file(char *filename, size_t filename_size, |
| 563 | const char *preset_name, int is_path, const char *codec_name); |
| 564 | |
| 565 | /** |
| 566 | * Realloc array to hold new_size elements of elem_size. |
| 567 | * Calls exit() on failure. |
| 568 | * |
| 569 | * @param array array to reallocate |
| 570 | * @param elem_size size in bytes of each element |
| 571 | * @param size new element count will be written here |
| 572 | * @param new_size number of elements to place in reallocated array |
| 573 | * @return reallocated array |
| 574 | */ |
| 575 | void *grow_array(void *array, int elem_size, int *size, int new_size); |
| 576 | |
| 577 | #define media_type_string av_get_media_type_string |
| 578 | |
| 579 | #define GROW_ARRAY(array, nb_elems)\ |
| 580 | array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1) |
| 581 | |
| 582 | #define GET_PIX_FMT_NAME(pix_fmt)\ |
| 583 | const char *name = av_get_pix_fmt_name(pix_fmt); |
| 584 | |
| 585 | #define GET_SAMPLE_FMT_NAME(sample_fmt)\ |
| 586 | const char *name = av_get_sample_fmt_name(sample_fmt) |
| 587 | |
| 588 | #define GET_SAMPLE_RATE_NAME(rate)\ |
| 589 | char name[16];\ |
| 590 | snprintf(name, sizeof(name), "%d", rate); |
| 591 | |
| 592 | #define GET_CH_LAYOUT_NAME(ch_layout)\ |
| 593 | char name[16];\ |
| 594 | snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout); |
| 595 | |
| 596 | #define GET_CH_LAYOUT_DESC(ch_layout)\ |
| 597 | char name[128];\ |
| 598 | av_get_channel_layout_string(name, sizeof(name), 0, ch_layout); |
| 599 | |
| 600 | #endif /* CMDUTILS_H */ |