Macros
#define	PW_TYPE_INTERFACE_Port PW_TYPE_INFO_INTERFACE_BASE "Port"

#define	PW_PORT_PERM_MASK PW_PERM_R\|PW_PERM_X\|PW_PERM_M

#define	PW_VERSION_PORT 3

#define	PW_API_PORT_IMPL static inline

#define	pw_direction spa_direction
	The direction of a port.

#define	PW_DIRECTION_INPUT SPA_DIRECTION_INPUT

#define	PW_DIRECTION_OUTPUT SPA_DIRECTION_OUTPUT

#define	PW_PORT_CHANGE_MASK_PROPS (1 << 0)

#define	PW_PORT_CHANGE_MASK_PARAMS (1 << 1)

#define	PW_PORT_CHANGE_MASK_ALL ((1 << 2)-1)

#define	PW_PORT_EVENT_INFO 0

#define	PW_PORT_EVENT_PARAM 1

#define	PW_PORT_EVENT_NUM 2

#define	PW_VERSION_PORT_EVENTS 0

#define	PW_PORT_METHOD_ADD_LISTENER 0

#define	PW_PORT_METHOD_SUBSCRIBE_PARAMS 1

#define	PW_PORT_METHOD_ENUM_PARAMS 2

#define	PW_PORT_METHOD_NUM 3

#define	PW_VERSION_PORT_METHODS 0

Functions
const char *	pw_direction_as_string (enum pw_direction direction)
	Convert a pw_direction to a readable string.

struct pw_port_info *	pw_port_info_update (struct pw_port_info info, const struct pw_port_info update)

struct pw_port_info *	pw_port_info_merge (struct pw_port_info info, const struct pw_port_info update, bool reset)

void	pw_port_info_free (struct pw_port_info *info)

PW_API_PORT_IMPL int	pw_port_add_listener (struct pw_port object, struct spa_hook listener, const struct pw_port_events events, void data)

PW_API_PORT_IMPL int	pw_port_subscribe_params (struct pw_port object, uint32_t ids, uint32_t n_ids)
	Subscribe to parameter changes.

PW_API_PORT_IMPL int	pw_port_enum_params (struct pw_port object, int seq, uint32_t id, uint32_t start, uint32_t num, const struct spa_pod filter)
	Enumerate port parameters.

Detailed Description

Data Structures