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- /*
- * Copyright (c) 2020, Alliance for Open Media. All rights reserved
- *
- * This source code is subject to the terms of the BSD 2 Clause License and
- * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
- * was not distributed with this source code in the LICENSE file, you can
- * obtain it at www.aomedia.org/license/software. If the Alliance for Open
- * Media Patent License 1.0 was not distributed with this source code in the
- * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
- */
- #ifndef AOM_COMMON_ARGS_HELPER_H_
- #define AOM_COMMON_ARGS_HELPER_H_
- #include "aom/aom_encoder.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- // Maximum length of the error messages for the helper functions.
- #define ARG_ERR_MSG_MAX_LEN 200
- struct arg {
- char **argv;
- const char *name;
- const char *val;
- unsigned int argv_step;
- const struct arg_def *def;
- };
- struct arg_enum_list {
- const char *name;
- int val;
- };
- #define ARG_ENUM_LIST_END \
- { 0 }
- typedef struct arg_def {
- const char *short_name;
- const char *long_name;
- int has_val; // 0: The argument must not have a value.
- // 1: The argument must have a value.
- // -1: The argument may or may not have a value.
- const char *desc;
- const struct arg_enum_list *enums;
- } arg_def_t;
- #define ARG_DEF(s, l, v, d) \
- { s, l, v, d, NULL }
- #define ARG_DEF_ENUM(s, l, v, d, e) \
- { s, l, v, d, e }
- #define ARG_DEF_LIST_END \
- { 0 }
- struct arg arg_init(char **argv);
- /*
- * The helper functions below all take an optional parameter err_msg for
- * error reporting. When err_msg is not NULL (must point to a buffer
- * which is at least ARG_ERR_MSG_MAX_LEN bytes long), a related error message is
- * stored in it if an error occurs. It will be set to an empty string if no
- * error occurs.
- */
- int arg_match_helper(struct arg *arg_, const struct arg_def *def, char **argv,
- char *err_msg);
- unsigned int arg_parse_uint_helper(const struct arg *arg, char *err_msg);
- int arg_parse_int_helper(const struct arg *arg, char *err_msg);
- struct aom_rational arg_parse_rational_helper(const struct arg *arg,
- char *err_msg);
- int arg_parse_enum_helper(const struct arg *arg, char *err_msg);
- int arg_parse_enum_or_int_helper(const struct arg *arg, char *err_msg);
- int arg_parse_list_helper(const struct arg *arg, int *list, int n,
- char *err_msg);
- #ifdef __cplusplus
- } // extern "C"
- #endif
- #endif // AOM_COMMON_ARGS_HELPER_H_
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