Struct pipewire_sys::pw_filter_events

#[repr(C)]
pub struct pw_filter_events {
    pub version: u32,
    pub destroy: Option<unsafe extern "C" fn(data: *mut c_void)>,
    pub state_changed: Option<unsafe extern "C" fn(data: *mut c_void, old: pw_filter_state, state: pw_filter_state, error: *const c_char)>,
    pub io_changed: Option<unsafe extern "C" fn(data: *mut c_void, port_data: *mut c_void, id: u32, area: *mut c_void, size: u32)>,
    pub param_changed: Option<unsafe extern "C" fn(data: *mut c_void, port_data: *mut c_void, id: u32, param: *const spa_pod)>,
    pub add_buffer: Option<unsafe extern "C" fn(data: *mut c_void, port_data: *mut c_void, buffer: *mut pw_buffer)>,
    pub remove_buffer: Option<unsafe extern "C" fn(data: *mut c_void, port_data: *mut c_void, buffer: *mut pw_buffer)>,
    pub process: Option<unsafe extern "C" fn(data: *mut c_void, position: *mut spa_io_position)>,
    pub drained: Option<unsafe extern "C" fn(data: *mut c_void)>,
    pub command: Option<unsafe extern "C" fn(data: *mut c_void, command: *const spa_command)>,
}

Events for a filter. These events are always called from the mainloop unless explicitly documented otherwise.

Fields

version: u32

destroy: Option<unsafe extern "C" fn(data: *mut c_void)>

state_changed: Option<unsafe extern "C" fn(data: *mut c_void, old: pw_filter_state, state: pw_filter_state, error: *const c_char)>

when the filter state changes

io_changed: Option<unsafe extern "C" fn(data: *mut c_void, port_data: *mut c_void, id: u32, area: *mut c_void, size: u32)>

when io changed on a port of the filter (when port_data is NULL).

param_changed: Option<unsafe extern "C" fn(data: *mut c_void, port_data: *mut c_void, id: u32, param: *const spa_pod)>

when a parameter changed on a port of the filter (when port_data is NULL).

add_buffer: Option<unsafe extern "C" fn(data: *mut c_void, port_data: *mut c_void, buffer: *mut pw_buffer)>

when a new buffer was created for a port

remove_buffer: Option<unsafe extern "C" fn(data: *mut c_void, port_data: *mut c_void, buffer: *mut pw_buffer)>

when a buffer was destroyed for a port

process: Option<unsafe extern "C" fn(data: *mut c_void, position: *mut spa_io_position)>

do processing. This is normally called from the mainloop but can also be called directly from the realtime data thread if the user is prepared to deal with this.

drained: Option<unsafe extern "C" fn(data: *mut c_void)>

The filter is drained

command: Option<unsafe extern "C" fn(data: *mut c_void, command: *const spa_command)>

A command notify, Since 0.3.39:1

Trait Implementations

impl Clone for pw_filter_events

fn clone(&self) -> pw_filter_events

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for pw_filter_events

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

Formats the value using the given formatter.

impl Copy for pw_filter_events