[][src]Enum gstreamer::StateChangeReturn

#[must_use]#[non_exhaustive]pub enum StateChangeReturn {
    Failure,
    Success,
    Async,
    NoPreroll,
    // some variants omitted
}

The possible return values from a state change function such as Element::set_state. Only StateChangeReturn::Failure is a real failure.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
Failure

the state change failed

Success

the state change succeeded

Async

the state change will happen asynchronously

NoPreroll

the state change succeeded but the element cannot produce data in State::Paused. This typically happens with live sources.

Methods

impl StateChangeReturn[src]

pub fn into_result(self) -> Result<StateChangeSuccess, StateChangeError>[src]

pub fn from_error(_: StateChangeError) -> Self[src]

pub fn from_ok(v: StateChangeSuccess) -> Self[src]

Trait Implementations

impl Clone for StateChangeReturn[src]

impl Copy for StateChangeReturn[src]

impl Debug for StateChangeReturn[src]

impl Eq for StateChangeReturn[src]

impl From<Result<StateChangeSuccess, StateChangeError>> for StateChangeReturn[src]

impl From<StateChangeError> for StateChangeReturn[src]

impl From<StateChangeSuccess> for StateChangeReturn[src]

impl<'a> FromValue<'a> for StateChangeReturn[src]

impl<'a> FromValueOptional<'a> for StateChangeReturn[src]

impl Hash for StateChangeReturn[src]

impl Ord for StateChangeReturn[src]

impl PartialEq<StateChangeReturn> for StateChangeReturn[src]

impl PartialOrd<StateChangeReturn> for StateChangeReturn[src]

impl SetValue for StateChangeReturn[src]

impl StaticType for StateChangeReturn[src]

impl StructuralEq for StateChangeReturn[src]

impl StructuralPartialEq for StateChangeReturn[src]

Auto Trait Implementations

impl RefUnwindSafe for StateChangeReturn

impl Send for StateChangeReturn

impl Sync for StateChangeReturn

impl Unpin for StateChangeReturn

impl UnwindSafe for StateChangeReturn

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToSendValue for T where
    T: ToValue + SetValue + Send + ?Sized
[src]

impl<T> ToValue for T where
    T: SetValue + ?Sized
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.