310 lines
8.4 KiB
ReStructuredText
310 lines
8.4 KiB
ReStructuredText
Module API Reference
|
|
====================
|
|
|
|
Modules add custom functionality to libobs: typically
|
|
:ref:`plugins_sources`, :ref:`plugins_outputs`, :ref:`plugins_encoders`,
|
|
and :ref:`plugins_services`.
|
|
|
|
.. type:: obs_module_t
|
|
|
|
A module object (not reference counted).
|
|
|
|
.. code:: cpp
|
|
|
|
#include <obs-module.h>
|
|
|
|
|
|
Module Macros
|
|
-------------
|
|
|
|
These macros are used within custom plugin modules.
|
|
|
|
.. function:: OBS_DECLARE_MODULE()
|
|
|
|
Declares a libobs module. Exports important core module functions
|
|
related to the module itself, OBS version, etc.
|
|
|
|
---------------------
|
|
|
|
.. function:: OBS_MODULE_USE_DEFAULT_LOCALE(module_name, default_locale)
|
|
|
|
Helper macro that uses the standard ini file format for localization.
|
|
Automatically initializes and destroys localization data, and
|
|
automatically provides module externs such as
|
|
:c:func:`obs_module_text()` to be able to get a localized string with
|
|
little effort.
|
|
|
|
---------------------
|
|
|
|
Module Exports
|
|
--------------
|
|
|
|
These are functions that plugin modules can optionally export in order
|
|
to communicate with libobs and front-ends.
|
|
|
|
.. function:: bool obs_module_load(void)
|
|
|
|
Required: Called when the module is loaded. Implement 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
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_module_unload(void)
|
|
|
|
Optional: Called when the module is unloaded.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_module_post_load(void)
|
|
|
|
Optional: Called when all modules have finished loading.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_module_set_locale(const char *locale)
|
|
|
|
Called to set the locale language and load the locale data for the
|
|
module.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_module_free_locale(void)
|
|
|
|
Called on module destruction to free locale data.
|
|
|
|
---------------------
|
|
|
|
.. function:: const char *obs_module_name(void)
|
|
|
|
(Optional)
|
|
|
|
:return: The full name of the module
|
|
|
|
---------------------
|
|
|
|
.. function:: const char *obs_module_description(void)
|
|
|
|
(Optional)
|
|
|
|
:return: A description of the module
|
|
|
|
---------------------
|
|
|
|
|
|
Module Externs
|
|
--------------
|
|
|
|
These functions are externs that are usable throughout the module.
|
|
|
|
.. function:: const char *obs_module_text(const char *lookup_string)
|
|
|
|
:return: A localized string
|
|
|
|
---------------------
|
|
|
|
.. function:: bool obs_module_get_string(const char *lookup_string, const char **translated_string)
|
|
|
|
Helper function for looking up locale.
|
|
|
|
:return: *true* if text found, otherwise *false*
|
|
|
|
---------------------
|
|
|
|
.. function:: obs_module_t *obs_current_module(void)
|
|
|
|
:return: The current module
|
|
|
|
---------------------
|
|
|
|
.. function:: char *obs_module_file(const char *file)
|
|
|
|
Returns the location to a module data file associated with the
|
|
current module. Free with :c:func:`bfree()` when complete.
|
|
|
|
Equivalent to:
|
|
|
|
.. code:: cpp
|
|
|
|
obs_find_module_file(obs_current_module(), file);
|
|
|
|
---------------------
|
|
|
|
.. function:: char *obs_module_config_path(const char *file)
|
|
|
|
Returns the location to a module config file associated with the
|
|
current module. Free with :c:func:`bfree()` when complete. Will
|
|
return NULL if configuration directory is not set.
|
|
|
|
Equivalent to:
|
|
|
|
.. code:: cpp
|
|
|
|
obs_module_get_config_path(obs_current_module(), file);
|
|
|
|
---------------------
|
|
|
|
|
|
Frontend Module Functions
|
|
--------------------------
|
|
|
|
These are functions used by frontends to load and get information about
|
|
plugin modules.
|
|
|
|
.. function:: int obs_open_module(obs_module_t **module, const char *path, const char *data_path)
|
|
|
|
Opens a plugin module directly from a specific path.
|
|
|
|
If the module already exists then the function will return successful, and
|
|
the module parameter will be given the pointer to the existing
|
|
module.
|
|
|
|
This does not initialize the module, it only loads the module image. To
|
|
initialize the module, call :c:func:`obs_init_module()`.
|
|
|
|
:param module: The pointer to the created module
|
|
:param path: Specifies the path to the module library file. If the
|
|
extension is not specified, it will use the extension
|
|
appropriate to the operating system
|
|
:param data_path: Specifies the path to the directory where the module's
|
|
data files are stored (or *NULL* if none)
|
|
:returns: | MODULE_SUCCESS - Successful
|
|
| MODULE_ERROR - A generic error occurred
|
|
| MODULE_FILE_NOT_FOUND - The module was not found
|
|
| MODULE_MISSING_EXPORTS - Required exports are missing
|
|
| MODULE_INCOMPATIBLE_VER - Incompatible version
|
|
|
|
---------------------
|
|
|
|
.. function:: bool obs_init_module(obs_module_t *module)
|
|
|
|
Initializes the module, which calls its obs_module_load export.
|
|
|
|
:return: *true* if the module was loaded successfully
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_log_loaded_modules(void)
|
|
|
|
Logs loaded modules.
|
|
|
|
---------------------
|
|
|
|
.. function:: const char *obs_get_module_file_name(obs_module_t *module)
|
|
|
|
:return: The module file name
|
|
|
|
---------------------
|
|
|
|
.. function:: const char *obs_get_module_name(obs_module_t *module)
|
|
|
|
:return: The module full name (or *NULL* if none)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_get_module_author(obs_module_t *module)
|
|
|
|
:return: The module author(s)
|
|
|
|
---------------------
|
|
|
|
.. function:: const char *obs_get_module_description(obs_module_t *module)
|
|
|
|
:return: The module description
|
|
|
|
---------------------
|
|
|
|
.. function:: const char *obs_get_module_binary_path(obs_module_t *module)
|
|
|
|
:return: The module binary path
|
|
|
|
---------------------
|
|
|
|
.. function:: const char *obs_get_module_data_path(obs_module_t *module)
|
|
|
|
:return: The module data path
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_add_module_path(const char *bin, const char *data)
|
|
|
|
Adds a module search path to be used with obs_find_modules. If the search
|
|
path strings contain %module%, that text will be replaced with the module
|
|
name when used.
|
|
|
|
:param bin: Specifies the module's binary directory search path
|
|
:param data: Specifies the module's data directory search path
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_load_all_modules(void)
|
|
|
|
Automatically loads all modules from module paths (convenience function).
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_post_load_modules(void)
|
|
|
|
Notifies modules that all modules have been loaded.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_find_modules(obs_find_module_callback_t callback, void *param)
|
|
|
|
Finds all modules within the search paths added by
|
|
:c:func:`obs_add_module_path()`.
|
|
|
|
Relevant data types used with this function:
|
|
|
|
.. code:: cpp
|
|
|
|
struct obs_module_info {
|
|
const char *bin_path;
|
|
const char *data_path;
|
|
};
|
|
|
|
typedef void (*obs_find_module_callback_t)(void *param,
|
|
const struct obs_module_info *info);
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_enum_modules(obs_enum_module_callback_t callback, void *param)
|
|
|
|
Enumerates all loaded modules.
|
|
|
|
Relevant data types used with this function:
|
|
|
|
.. code:: cpp
|
|
|
|
typedef void (*obs_enum_module_callback_t)(void *param, obs_module_t *module);
|
|
|
|
---------------------
|
|
|
|
.. function:: char *obs_find_module_file(obs_module_t *module, const char *file)
|
|
|
|
Returns the location of a plugin module data file.
|
|
|
|
Note: Modules should use obs_module_file function defined in obs-module.h
|
|
as a more elegant means of getting their files without having to
|
|
specify the module parameter.
|
|
|
|
:param module: The module associated with the file to locate
|
|
:param file: The file to locate
|
|
:return: Path string, or NULL if not found. Use bfree to free string
|
|
|
|
---------------------
|
|
|
|
.. function:: char *obs_module_get_config_path(obs_module_t *module, const char *file)
|
|
|
|
Returns the path of a plugin module config file (whether it exists or not).
|
|
|
|
Note: Modules should use obs_module_config_path function defined in
|
|
obs-module.h as a more elegant means of getting their files without
|
|
having to specify the module parameter.
|
|
|
|
:param module: The module associated with the path
|
|
:param file: The file to get a path to
|
|
:return: Path string, or NULL if not found. Use bfree to free string
|