#[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)>, }
Expand description

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

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§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§

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impl Clone for pw_filter_events

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fn clone(&self) -> pw_filter_events

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for pw_filter_events

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

Formats the value using the given formatter. Read more
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impl Copy for pw_filter_events

Auto Trait Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.