Struct gstreamer::meta::MetaRef

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

Implementations

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

pub fn api(&self) -> Type

pub fn flags(&self) -> MetaFlags

pub fn type_(&self) -> Type

pub fn seqnum(&self) -> MetaSeqnum

Available on crate feature v1_16 only.

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

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

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

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

where T: MetaAPI,

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

where T: MetaAPI,

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

Available on crate feature v1_24 only.

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

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

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

Available on crate feature v1_20 only.

Trait Implementations

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

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

Converts this type into a shared reference of the (usually inferred) input type.

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

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

Converts this type into a shared reference of the (usually inferred) input type.

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

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

impl<'a, T: 'a> Clone for MetaRef<'a, T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

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

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

Formats the value using the given formatter.

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

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.