5 #ifndef PIPEWIRE_EXT_METADATA_H 6 #define PIPEWIRE_EXT_METADATA_H 22 #define PW_TYPE_INTERFACE_Metadata PW_TYPE_INFO_INTERFACE_BASE "Metadata" 24 #define PW_VERSION_METADATA 3 27 #define PW_EXTENSION_MODULE_METADATA PIPEWIRE_MODULE_PREFIX "module-metadata" 29 #define PW_METADATA_EVENT_PROPERTY 0 30 #define PW_METADATA_EVENT_NUM 1 34 #define PW_VERSION_METADATA_EVENTS 0 44 #define PW_METADATA_METHOD_ADD_LISTENER 0 45 #define PW_METADATA_METHOD_SET_PROPERTY 1 46 #define PW_METADATA_METHOD_CLEAR 2 47 #define PW_METADATA_METHOD_NUM 3 51 #define PW_VERSION_METADATA_METHODS 0 69 #define pw_metadata_method(o,method,version,...) \ 71 int _res = -ENOTSUP; \ 72 spa_interface_call_res((struct spa_interface*)o, \ 73 struct pw_metadata_methods, _res, \ 74 method, version, ##__VA_ARGS__); \ 78 #define pw_metadata_add_listener(c,...) pw_metadata_method(c,add_listener,0,__VA_ARGS__) 79 #define pw_metadata_set_property(c,...) pw_metadata_method(c,set_property,0,__VA_ARGS__) 80 #define pw_metadata_clear(c) pw_metadata_method(c,clear,0) 82 #define PW_KEY_METADATA_NAME "metadata.name" 83 #define PW_KEY_METADATA_VALUES "metadata.values"
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:350