Struct gstreamer::meta::MetaRef

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pub struct MetaRef<'a, T: 'a> { /* private fields */ }

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impl<'a, T> MetaRef<'a, T>

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pub fn api(&self) -> Type

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pub fn flags(&self) -> MetaFlags

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pub fn type_(&self) -> Type

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pub fn seqnum(&self) -> MetaSeqnum

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pub fn has_tag(&self, tag: Quark) -> bool

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pub fn tags<'b>(&self) -> &'b [GStringPtr]

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pub fn upcast_ref(&self) -> &MetaRef<'a, Meta>

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pub fn copy( &self, buffer: &mut BufferRef, region: bool, range: impl RangeBounds<usize> ) -> Result<(), BoolError>
where T: MetaAPI,

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pub fn as_ptr(&self) -> *const T::GstType
where T: MetaAPI,

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pub fn serialize<B: ByteArrayInterface + ?Sized>( &self, writer: &mut B ) -> Result<usize, BoolError>

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impl<'a> MetaRef<'a, Meta>

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pub fn downcast_ref<T: MetaAPI>(&self) -> Option<&MetaRef<'a, T>>

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pub fn try_as_custom_meta(&self) -> Option<&MetaRef<'a, CustomMeta>>

Trait Implementations§

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impl<'a, T> AsRef<MetaRef<'a, T>> for MetaRef<'a, T>

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fn as_ref(&self) -> &MetaRef<'a, T>

Converts this type into a shared reference of the (usually inferred) input type.
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impl<'a, T, U> AsRef<MetaRef<'a, T>> for MetaRefMut<'a, T, U>

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fn as_ref(&self) -> &MetaRef<'a, T>

Converts this type into a shared reference of the (usually inferred) input type.
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impl<'a, T> AsRef<T> for MetaRef<'a, T>

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fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.
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impl<'a, T: 'a> Clone for MetaRef<'a, T>

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fn clone(&self) -> Self

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<'a, T: Debug + 'a> Debug for MetaRef<'a, T>

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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<'a, T> Deref for MetaRef<'a, T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &T

Dereferences the value.

Auto Trait Implementations§

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impl<'a, T> Freeze for MetaRef<'a, T>

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impl<'a, T> RefUnwindSafe for MetaRef<'a, T>
where T: RefUnwindSafe,

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impl<'a, T> Send for MetaRef<'a, T>
where T: Sync,

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impl<'a, T> Sync for MetaRef<'a, T>
where T: Sync,

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impl<'a, T> Unpin for MetaRef<'a, T>

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impl<'a, T> UnwindSafe for MetaRef<'a, T>
where T: RefUnwindSafe,

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> 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> ToOwned for T
where 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 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.