25 #ifndef PIPEWIRE_DEVICE_H 26 #define PIPEWIRE_DEVICE_H 46 #define PW_TYPE_INTERFACE_Device PW_TYPE_INFO_INTERFACE_BASE "Device" 48 #define PW_VERSION_DEVICE 3 54 #define PW_DEVICE_CHANGE_MASK_PROPS (1 << 0) 55 #define PW_DEVICE_CHANGE_MASK_PARAMS (1 << 1) 56 #define PW_DEVICE_CHANGE_MASK_ALL ((1 << 2)-1) 74 #define PW_DEVICE_EVENT_INFO 0 75 #define PW_DEVICE_EVENT_PARAM 1 76 #define PW_DEVICE_EVENT_NUM 2 80 #define PW_VERSION_DEVICE_EVENTS 0 99 void (*
param) (
void *object,
int seq,
100 uint32_t
id, uint32_t index, uint32_t next,
105 #define PW_DEVICE_METHOD_ADD_LISTENER 0 106 #define PW_DEVICE_METHOD_SUBSCRIBE_PARAMS 1 107 #define PW_DEVICE_METHOD_ENUM_PARAMS 2 108 #define PW_DEVICE_METHOD_SET_PARAM 3 109 #define PW_DEVICE_METHOD_NUM 4 113 #define PW_VERSION_DEVICE_METHODS 0 143 int (*
enum_params) (
void *object,
int seq, uint32_t id, uint32_t start, uint32_t num,
152 int (*
set_param) (
void *object, uint32_t id, uint32_t flags,
156 #define pw_device_method(o,method,version,...) \ 158 int _res = -ENOTSUP; \ 159 spa_interface_call_res((struct spa_interface*)o, \ 160 struct pw_device_methods, _res, \ 161 method, version, ##__VA_ARGS__); \ 165 #define pw_device_add_listener(c,...) pw_device_method(c,add_listener,0,__VA_ARGS__) 166 #define pw_device_subscribe_params(c,...) pw_device_method(c,subscribe_params,0,__VA_ARGS__) 167 #define pw_device_enum_params(c,...) pw_device_method(c,enum_params,0,__VA_ARGS__) 168 #define pw_device_set_param(c,...) pw_device_method(c,set_param,0,__VA_ARGS__) void(* info)(void *object, const struct pw_device_info *info)
Notify device info.
Definition: device.h:101
uint32_t version
Definition: device.h:95
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:351
uint64_t change_mask
bitfield of changed fields since last call
Definition: device.h:67
The device information.
Definition: device.h:59
Device methods.
Definition: device.h:131
int(* subscribe_params)(void *object, uint32_t *ids, uint32_t n_ids)
Subscribe to parameter changes.
Definition: device.h:149
struct pw_device_info * pw_device_info_merge(struct pw_device_info *info, const struct pw_device_info *update, bool reset)
Merge and existing pw_device_info with update.
Definition: introspect.c:410
information about a parameter
Definition: param.h:70
int(* enum_params)(void *object, int seq, uint32_t id, uint32_t start, uint32_t num, const struct spa_pod *filter)
Enumerate device parameters.
Definition: device.h:163
struct spa_param_info * params
parameters
Definition: device.h:69
uint32_t n_params
number of items in params
Definition: device.h:70
struct pw_device_info * pw_device_info_update(struct pw_device_info *info, const struct pw_device_info *update)
Update and existing pw_device_info with update and reset.
Definition: introspect.c:456
void pw_device_info_free(struct pw_device_info *info)
Free a pw_device_info.
Definition: introspect.c:463
void(* param)(void *object, int seq, uint32_t id, uint32_t index, uint32_t next, const struct spa_pod *param)
Notify a device param.
Definition: device.h:113
uint32_t id
id of the global
Definition: device.h:60
Device events.
Definition: device.h:92
int(* set_param)(void *object, uint32_t id, uint32_t flags, const struct spa_pod *param)
Set a parameter on the device.
Definition: device.h:172
uint32_t version
Definition: device.h:134
int(* add_listener)(void *object, struct spa_hook *listener, const struct pw_device_events *events, void *data)
Definition: device.h:136