devices::virtio::video::decoder::backend

Struct GenericDecoderBackend

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struct GenericDecoderBackend<S: DecoderBackend>(pub S);
Expand description

Type that changes the Session associated type to Box<dyn DecoderSession>, allowing us to use trait objects for backends.

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§0: S

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impl<S> DecoderBackend for GenericDecoderBackend<S>
where S: DecoderBackend, <S as DecoderBackend>::Session: 'static,

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type Session = Box<dyn DecoderSession>

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fn get_capabilities(&self) -> Capability

Return the decoding capabilities for this backend instance.
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fn new_session(&mut self, format: Format) -> Result<Self::Session, VideoError>

Create a new decoding session for the passed format.
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fn into_trait_object( self, ) -> Box<dyn DecoderBackend<Session = Box<dyn DecoderSession>>>
where Self: Sized + 'static,

Turn this backend into a trait object, allowing the same decoder to operate on a set of different backends.

Auto Trait Implementations§

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impl<S> Freeze for GenericDecoderBackend<S>
where S: Freeze,

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impl<S> RefUnwindSafe for GenericDecoderBackend<S>
where S: RefUnwindSafe,

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impl<S> Send for GenericDecoderBackend<S>

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impl<S> Sync for GenericDecoderBackend<S>
where S: Sync,

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impl<S> Unpin for GenericDecoderBackend<S>
where S: Unpin,

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impl<S> UnwindSafe for GenericDecoderBackend<S>
where S: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where 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 T
where 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 T
where 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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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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 T
where 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, U> TryFrom<U> for T
where 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 T
where 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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V