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31.1.1
libobs/obs-module.h
181 строка
8 KB
Ryan Foster
clang-format: Increase column limit from 80 to 120
05 окт 2024, 01:19
05 окт 2024, 01:19
a1fbf10
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/****************************************************************************** Copyright (C) 2023 by Lain Bailey <lain@obsproject.com> This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. ******************************************************************************/ #pragma once #include "obs.h" #ifdef __cplusplus #define MODULE_EXPORT extern "C" EXPORT #define MODULE_EXTERN extern "C" #else #define MODULE_EXPORT EXPORT #define MODULE_EXTERN extern #endif /** * @file * @brief This file is used by modules for module declaration and module * exports. * * @page modules_page Modules * @brief Modules or plugins are libraries that can be loaded by libobs and * subsequently interact with it. * * @section modules_overview_sec Overview * * Modules can provide a wide range of functionality to libobs, they for example * can feed captured audio or video to libobs, or interface with an encoder to * provide some codec to libobs. * * @section modules_basic_sec Creating a basic module * * In order to create a module for libobs you will need to build a shared * library that implements a basic interface for libobs to interact with. * The following code would create a simple source plugin without localization: * @code #include <obs-module.h> OBS_DECLARE_MODULE() extern struct obs_source_info my_source; bool obs_module_load(void) { obs_register_source(&my_source); return true; } @endcode * * If you want to enable localization, you will need to also use the * @ref OBS_MODULE_USE_DEFAULT_LOCALE() macro. * * Other module types: * - @ref obs_register_encoder() * - @ref obs_register_service() * - @ref obs_register_output() * */ /** Required: Declares a libobs module. */ #define OBS_DECLARE_MODULE() \ static obs_module_t *obs_module_pointer; \ MODULE_EXPORT void obs_module_set_pointer(obs_module_t *module); \ void obs_module_set_pointer(obs_module_t *module) \ { \ obs_module_pointer = module; \ } \ obs_module_t *obs_current_module(void) \ { \ return obs_module_pointer; \ } \ MODULE_EXPORT uint32_t obs_module_ver(void); \ uint32_t obs_module_ver(void) \ { \ return LIBOBS_API_VER; \ } /** * Required: Called when the module is loaded. Use this function to load all * the sources/encoders/outputs/services for your module, or anything else that * may need loading. * * @return Return true to continue loading the module, otherwise * false to indicate failure and unload the module */ MODULE_EXPORT bool obs_module_load(void); /** Optional: Called when the module is unloaded. */ MODULE_EXPORT void obs_module_unload(void); /** Optional: Called when all modules have finished loading */ MODULE_EXPORT void obs_module_post_load(void); /** Called to set the current locale data for the module. */ MODULE_EXPORT void obs_module_set_locale(const char *locale); /** Called to free the current locale data for the module. */ MODULE_EXPORT void obs_module_free_locale(void); /** Optional: Use this macro in a module to use default locale handling. */ #define OBS_MODULE_USE_DEFAULT_LOCALE(module_name, default_locale) \ lookup_t *obs_module_lookup = NULL; \ const char *obs_module_text(const char *val) \ { \ const char *out = val; \ text_lookup_getstr(obs_module_lookup, val, &out); \ return out; \ } \ bool obs_module_get_string(const char *val, const char **out) \ { \ return text_lookup_getstr(obs_module_lookup, val, out); \ } \ void obs_module_set_locale(const char *locale) \ { \ if (obs_module_lookup) \ text_lookup_destroy(obs_module_lookup); \ obs_module_lookup = obs_module_load_locale(obs_current_module(), default_locale, locale); \ } \ void obs_module_free_locale(void) \ { \ text_lookup_destroy(obs_module_lookup); \ obs_module_lookup = NULL; \ } /** Helper function for looking up locale if default locale handler was used */ MODULE_EXTERN const char *obs_module_text(const char *lookup_string); /** Helper function for looking up locale if default locale handler was used, * returns true if text found, otherwise false */ MODULE_EXPORT bool obs_module_get_string(const char *lookup_string, const char **translated_string); /** Helper function that returns the current module */ MODULE_EXTERN obs_module_t *obs_current_module(void); /** * Returns the location to a module data file associated with the current * module. Free with bfree when complete. Equivalent to: * obs_find_module_file(obs_current_module(), file); */ #define obs_module_file(file) obs_find_module_file(obs_current_module(), file) /** * Returns the location to a module config file associated with the current * module. Free with bfree when complete. Will return NULL if configuration * directory is not set. Equivalent to: * obs_module_get_config_path(obs_current_module(), file); */ #define obs_module_config_path(file) obs_module_get_config_path(obs_current_module(), file) /** * Optional: Declares the author(s) of the module * * @param name Author name(s) */ #define OBS_MODULE_AUTHOR(name) \ MODULE_EXPORT const char *obs_module_author(void); \ const char *obs_module_author(void) \ { \ return name; \ } /** Optional: Returns the full name of the module */ MODULE_EXPORT const char *obs_module_name(void); /** Optional: Returns a description of the module */ MODULE_EXPORT const char *obs_module_description(void);