Module Impl

A dynamically loadable module. More...

Files
file	impl-module.h
	pipewire/impl-module.h

Data Structures
struct	pw_impl_module_events
	Module events added with pw_impl_module_add_listener. More...
struct	pw_impl_module

Macros
#define	PW_VERSION_IMPL_MODULE_EVENTS   0

Typedefs
typedef int(*	pw_impl_module_init_func_t) (struct pw_impl_module *module, const char *args)
	Module init function signature. More...

Functions
struct pw_impl_module *	pw_context_load_module (struct pw_context *context, const char *name, const char *args, struct pw_properties *properties)
	Load a module. More...
struct pw_context *	pw_impl_module_get_context (struct pw_impl_module *module)
	Get the context of a module. More...
struct pw_global *	pw_impl_module_get_global (struct pw_impl_module *module)
	Get the global of a module. More...
const struct pw_properties *	pw_impl_module_get_properties (struct pw_impl_module *module)
	Get the module properties. More...
int	pw_impl_module_update_properties (struct pw_impl_module *module, const struct spa_dict *dict)
	Update the module properties. More...
const struct pw_module_info *	pw_impl_module_get_info (struct pw_impl_module *module)
	Get the module info. More...
void	pw_impl_module_add_listener (struct pw_impl_module *module, struct spa_hook *listener, const struct pw_impl_module_events *events, void *data)
	Add an event listener to a module. More...
void	pw_impl_module_destroy (struct pw_impl_module *module)
	Destroy a module. More...
void	pw_impl_module_schedule_destroy (struct pw_impl_module *module)
	Schedule a destroy later on the main thread. More...

Detailed Description

A dynamically loadable module.

Macro Definition Documentation

PW_VERSION_IMPL_MODULE_EVENTS

#define PW_VERSION_IMPL_MODULE_EVENTS   0

Typedef Documentation

pw_impl_module_init_func_t

typedef int(* pw_impl_module_init_func_t) (struct pw_impl_module *module, const char *args)

Module init function signature.

Parameters

module	A Module Impl
args	Arguments to the module

Returns

0 on success, < 0 otherwise with an errno style error

A module should provide an init function with this signature. This function will be called when a module is loaded.

Function Documentation

pw_context_load_module()

struct pw_impl_module* pw_context_load_module	(	struct pw_context *	context,
		const char *	name,
		const char *	args,
		struct pw_properties *	properties
	)

Load a module.

Parameters

context	a Context
name	name of the module to load
args	A string with arguments for the module
properties	extra global properties

Returns

A Module Impl if the module could be loaded, or NULL on failure.

Examples

export-spa-device.c, export-spa.c, and local-v4l2.c.

pw_impl_module_get_context()

struct pw_context* pw_impl_module_get_context

(

struct pw_impl_module *

module

)

Get the context of a module.

pw_impl_module_get_global()

struct pw_global* pw_impl_module_get_global

(

struct pw_impl_module *

module

)

Get the global of a module.

pw_impl_module_get_properties()

const struct pw_properties* pw_impl_module_get_properties

(

struct pw_impl_module *

module

)

Get the module properties.

pw_impl_module_update_properties()

int pw_impl_module_update_properties	(	struct pw_impl_module *	module,
		const struct spa_dict *	dict
	)

Update the module properties.

pw_impl_module_get_info()

const struct pw_module_info* pw_impl_module_get_info

(

struct pw_impl_module *

module

)

Get the module info.

pw_impl_module_add_listener()

void pw_impl_module_add_listener	(	struct pw_impl_module *	module,
		struct spa_hook *	listener,
		const struct pw_impl_module_events *	events,
		void *	data
	)

Add an event listener to a module.

pw_impl_module_destroy()

void pw_impl_module_destroy

(

struct pw_impl_module *

module

)

Destroy a module.

Parameters

module

the module to destroy

pw_impl_module_schedule_destroy()

void pw_impl_module_schedule_destroy

(

struct pw_impl_module *

module

)

Schedule a destroy later on the main thread.