PipeWire
0.3.61
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Port interface. More...
Files | |
file | port.h |
pipewire/port.h | |
Data Structures | |
struct | pw_port_info |
struct | pw_port_events |
Port events. More... | |
struct | pw_port_methods |
Port methods. More... | |
struct | pw_port |
Functions | |
const char * | pw_direction_as_string (enum pw_direction direction) |
Convert a pw_direction to a readable string. More... | |
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) |
Port interface.
#define PW_TYPE_INTERFACE_Port PW_TYPE_INFO_INTERFACE_BASE "Port" |
#define PW_VERSION_PORT 3 |
#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 |
#define pw_port_method | ( | o, | |
method, | |||
version, | |||
... | |||
) |
#define pw_port_add_listener | ( | c, | |
... | |||
) | pw_port_method(c,add_listener,0,__VA_ARGS__) |
#define pw_port_subscribe_params | ( | c, | |
... | |||
) | pw_port_method(c,subscribe_params,0,__VA_ARGS__) |
Subscribe to parameter changes.
Automatically emit param events for the given ids when they are changed.
ids | an array of param ids |
n_ids | the number of ids in ids |
#define pw_port_enum_params | ( | c, | |
... | |||
) | pw_port_method(c,enum_params,0,__VA_ARGS__) |
Enumerate port parameters.
Start enumeration of port parameters. For each param, a param event will be emitted.
seq | a sequence number returned in the reply |
id | the parameter id to enumerate |
start | the start index or 0 for the first param |
num | the maximum number of params to retrieve |
filter | a param filter or NULL |
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 | ) |