Enum gstreamer::StateChange

pub enum StateChange {
    NullToReady,
    ReadyToPaused,
    PausedToPlaying,
    PlayingToPaused,
    PausedToReady,
    ReadyToNull,
    NullToNull,
    ReadyToReady,
    PausedToPaused,
    PlayingToPlaying,
    // some variants omitted
}

These are the different state changes an element goes through. State::Null ⇒ State::Playing is called an upwards state change and State::Playing ⇒ State::Null a downwards state change.

Variants

NullToReady

ReadyToPaused

PausedToPlaying

PlayingToPaused

PausedToReady

ReadyToNull

NullToNull

ReadyToReady

PausedToPaused

PlayingToPlaying

Methods

impl StateChange

pub fn new(current: State, next: State) -> Self

pub fn current(self) -> State

pub fn next(self) -> State

Trait Implementations

impl Clone for StateChange

fn clone(&self) -> StateChange

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for StateChange

impl Debug for StateChange

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

Formats the value using the given formatter.

impl Eq for StateChange

impl<'a> FromValue<'a> for StateChange

unsafe fn from_value(value: &Value) -> Self

impl<'a> FromValueOptional<'a> for StateChange

unsafe fn from_value_optional(value: &Value) -> Option<Self>

impl Hash for StateChange

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Ord for StateChange

fn cmp(&self, other: &StateChange) -> Ordering

This method returns an [Ordering] between self and other.

#[must_use] fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use] fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use] fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<StateChange> for StateChange

fn eq(&self, other: &StateChange) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &StateChange) -> bool

This method tests for !=.

impl PartialOrd<StateChange> for StateChange

fn partial_cmp(&self, other: &StateChange) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &StateChange) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &StateChange) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &StateChange) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &StateChange) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl SetValue for StateChange

unsafe fn set_value(value: &mut Value, this: &Self)

impl StaticType for StateChange

fn static_type() -> Type

Returns the type identifier of Self.

impl StructuralEq for StateChange

impl StructuralPartialEq for StateChange