Struct pipewire_sys::pw_metadata_methods

#[repr(C)]
pub struct pw_metadata_methods {
    pub version: u32,
    pub add_listener: Option<unsafe extern "C" fn(object: *mut c_void, listener: *mut spa_hook, events: *const pw_metadata_events, data: *mut c_void) -> c_int>,
    pub set_property: Option<unsafe extern "C" fn(object: *mut c_void, subject: u32, key: *const c_char, type_: *const c_char, value: *const c_char) -> c_int>,
    pub clear: Option<unsafe extern "C" fn(object: *mut c_void) -> c_int>,
}

\ref pw_metadata methods

Fields

version: u32

add_listener: Option<unsafe extern "C" fn(object: *mut c_void, listener: *mut spa_hook, events: *const pw_metadata_events, data: *mut c_void) -> c_int>

set_property: Option<unsafe extern "C" fn(object: *mut c_void, subject: u32, key: *const c_char, type_: *const c_char, value: *const c_char) -> c_int>

Set a metadata property

Automatically emit property events for the subject and key when they are changed.

\param subject the id of the global to associate the metadata with. \param key the key of the metadata, NULL clears all metadata for the subject. \param type the type of the metadata, this can be blank \param value the metadata value. NULL clears the metadata.

This requires X and W permissions on the metadata. It also requires M permissions on the subject global.

clear: Option<unsafe extern "C" fn(object: *mut c_void) -> c_int>

Clear all metadata

This requires X and W permissions on the metadata.

Trait Implementations

impl Clone for pw_metadata_methods

fn clone(&self) -> pw_metadata_methods

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for pw_metadata_methods

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for pw_metadata_methods