Struct gstreamer_video::VideoAggregatorParallelConvertPad

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pub struct VideoAggregatorParallelConvertPad { /* private fields */ }
Expand description

An implementation of GstPad that can be used with VideoAggregator.

See VideoAggregator for more details.

§Implements

VideoAggregatorConvertPadExt, VideoAggregatorPadExt, gst_base::prelude::AggregatorPadExt, gst::prelude::PadExt, gst::prelude::ObjectExt, [trait@glib::ObjectExt]

GLib type: GObject with reference counted clone semantics.

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Trait Implementations§

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impl Clone for VideoAggregatorParallelConvertPad

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fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

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

Performs copy-assignment from source. Read more
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impl Debug for VideoAggregatorParallelConvertPad

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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 HasParamSpec for VideoAggregatorParallelConvertPad

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type ParamSpec = ParamSpecObject

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type SetValue = VideoAggregatorParallelConvertPad

Preferred value to be used as setter for the associated ParamSpec.
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type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, VideoAggregatorParallelConvertPad>

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for VideoAggregatorParallelConvertPad

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

Hashes the memory address of this object.

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

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for VideoAggregatorParallelConvertPad

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

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl ParentClassIs for VideoAggregatorParallelConvertPad

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type Parent = VideoAggregatorConvertPad

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impl<OT: ObjectType> PartialEq<OT> for VideoAggregatorParallelConvertPad

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

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<OT: ObjectType> PartialOrd<OT> for VideoAggregatorParallelConvertPad

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

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StaticType for VideoAggregatorParallelConvertPad

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for VideoAggregatorParallelConvertPad

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impl IsA<AggregatorPad> for VideoAggregatorParallelConvertPad

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impl IsA<Object> for VideoAggregatorParallelConvertPad

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impl IsA<Pad> for VideoAggregatorParallelConvertPad

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impl IsA<VideoAggregatorConvertPad> for VideoAggregatorParallelConvertPad

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impl IsA<VideoAggregatorPad> for VideoAggregatorParallelConvertPad

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impl Send for VideoAggregatorParallelConvertPad

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impl Sync for VideoAggregatorParallelConvertPad

Auto Trait Implementations§

Blanket Implementations§

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impl<O> AggregatorPadExt for O
where O: IsA<AggregatorPad>,

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fn drop_buffer(&self) -> bool

Drop the buffer currently queued in self. Read more
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fn has_buffer(&self) -> bool

This checks if a pad has a buffer available that will be returned by a call to peek_buffer() or pop_buffer(). Read more
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fn is_eos(&self) -> bool

Returns Read more
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fn is_inactive(&self) -> bool

It is only valid to call this method from GstAggregatorClass::aggregate() Read more
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fn peek_buffer(&self) -> Option<Buffer>

Returns Read more
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fn pop_buffer(&self) -> Option<Buffer>

Steal the ref to the buffer currently queued in self. Read more
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fn emits_signals(&self) -> bool

Enables the emission of signals such as buffer-consumed
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fn set_emit_signals(&self, emit_signals: bool)

Enables the emission of signals such as buffer-consumed
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fn connect_buffer_consumed<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self, &Buffer) + Send + Sync + 'static,

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fn connect_emit_signals_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + Send + Sync + 'static,

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impl<O> AggregatorPadExtManual for O
where O: IsA<AggregatorPad>,

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fn segment(&self) -> FormattedSegment<GenericFormattedValue>

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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> Cast for T
where T: ObjectType,

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fn upcast<T>(self) -> T
where T: ObjectType, Self: IsA<T>,

Upcasts an object to a superclass or interface T. Read more
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fn upcast_ref<T>(&self) -> &T
where T: ObjectType, Self: IsA<T>,

Upcasts an object to a reference of its superclass or interface T. Read more
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fn downcast<T>(self) -> Result<T, Self>
where T: ObjectType, Self: MayDowncastTo<T>,

Tries to downcast to a subclass or interface implementor T. Read more
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fn downcast_ref<T>(&self) -> Option<&T>
where T: ObjectType, Self: MayDowncastTo<T>,

Tries to downcast to a reference of its subclass or interface implementor T. Read more
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fn dynamic_cast<T>(self) -> Result<T, Self>
where T: ObjectType,

Tries to cast to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while upcast will do many checks at compile-time already. downcast will perform the same checks at runtime as dynamic_cast, but will also ensure some amount of compile-time safety. Read more
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fn dynamic_cast_ref<T>(&self) -> Option<&T>
where T: ObjectType,

Tries to cast to reference to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more
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unsafe fn unsafe_cast<T>(self) -> T
where T: ObjectType,

Casts to T unconditionally. Read more
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unsafe fn unsafe_cast_ref<T>(&self) -> &T
where T: ObjectType,

Casts to &T unconditionally. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_num_as_vec(ptr: *const GList, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec(_: *const GList, _: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(_: *const GList, _: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_num_as_vec(ptr: *const GPtrArray, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec( _: *const GPtrArray, _: usize, ) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(_: *const GPtrArray, _: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_num_as_vec(ptr: *const GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec(_: *const GSList, _: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(_: *const GSList, _: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_num_as_vec(ptr: *mut GList, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec(ptr: *mut GList, num: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(ptr: *mut GList, num: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_num_as_vec(ptr: *mut GPtrArray, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec( ptr: *mut GPtrArray, num: usize, ) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(ptr: *mut GPtrArray, num: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_as_vec(ptr: *const GList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(_: *const GList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GList) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_as_vec(ptr: *const GPtrArray) -> Vec<T>

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unsafe fn from_glib_container_as_vec(_: *const GPtrArray) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GPtrArray) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_as_vec(ptr: *const GSList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(_: *const GSList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GSList) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_as_vec(ptr: *mut GList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(ptr: *mut GList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GList) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_as_vec(ptr: *mut GPtrArray) -> Vec<T>

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unsafe fn from_glib_container_as_vec(ptr: *mut GPtrArray) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GPtrArray) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for T
where T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_as_vec(ptr: *mut GSList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(ptr: *mut GSList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GSList) -> Vec<T>

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impl<O> GObjectExtManualGst for O
where O: IsA<Object>,

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fn set_property_from_str(&self, name: &str, value: &str)

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impl<O> GstObjectExt for O
where O: IsA<Object>,

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fn add_control_binding( &self, binding: &impl IsA<ControlBinding>, ) -> Result<(), BoolError>

Attach the ControlBinding to the object. If there already was a ControlBinding for this property it will be replaced. Read more
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fn default_error(&self, error: &Error, debug: Option<&str>)

A default error function that uses g_printerr() to display the error message and the optional debug string.. Read more
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fn control_binding(&self, property_name: &str) -> Option<ControlBinding>

Gets the corresponding ControlBinding for the property. This should be unreferenced again after use. Read more
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fn control_rate(&self) -> Option<ClockTime>

Obtain the control-rate for this self. Audio processing Element objects will use this rate to sub-divide their processing loop and call sync_values() in between. The length of the processing segment should be up to control-rate nanoseconds. Read more
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fn name(&self) -> GString

Returns a copy of the name of self. Caller should g_free() the return value after usage. For a nameless object, this returns None, which you can safely g_free() as well. Read more
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fn parent(&self) -> Option<Object>

Returns the parent of self. This function increases the refcount of the parent object so you should gst_object_unref() it after usage. Read more
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fn path_string(&self) -> GString

Generates a string describing the path of self in the object hierarchy. Only useful (or used) for debugging. Read more
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fn value( &self, property_name: &str, timestamp: impl Into<Option<ClockTime>>, ) -> Option<Value>

Gets the value for the given controlled property at the requested time. Read more
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fn has_active_control_bindings(&self) -> bool

Check if the self has active controlled properties. Read more
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fn has_ancestor(&self, ancestor: &impl IsA<Object>) -> bool

Check if self has an ancestor ancestor somewhere up in the hierarchy. One can e.g. check if a Element is inside a Pipeline. Read more
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fn has_as_ancestor(&self, ancestor: &impl IsA<Object>) -> bool

Check if self has an ancestor ancestor somewhere up in the hierarchy. One can e.g. check if a Element is inside a Pipeline. Read more
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fn has_as_parent(&self, parent: &impl IsA<Object>) -> bool

Check if parent is the parent of self. E.g. a Element can check if it owns a given Pad. Read more
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fn remove_control_binding(&self, binding: &impl IsA<ControlBinding>) -> bool

Removes the corresponding ControlBinding. If it was the last ref of the binding, it will be disposed. Read more
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fn set_control_binding_disabled(&self, property_name: &str, disabled: bool)

This function is used to disable the control bindings on a property for some time, i.e. sync_values() will do nothing for the property. Read more
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fn set_control_bindings_disabled(&self, disabled: bool)

This function is used to disable all controlled properties of the self for some time, i.e. sync_values() will do nothing. Read more
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fn set_control_rate(&self, control_rate: impl Into<Option<ClockTime>>)

Change the control-rate for this self. Audio processing Element objects will use this rate to sub-divide their processing loop and call sync_values() in between. The length of the processing segment should be up to control-rate nanoseconds. Read more
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fn set_parent(&self, parent: &impl IsA<Object>) -> Result<(), BoolError>

Sets the parent of self to parent. The object’s reference count will be incremented, and any floating reference will be removed (see gst_object_ref_sink()). Read more
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fn suggest_next_sync(&self) -> Option<ClockTime>

Returns a suggestion for timestamps where buffers should be split to get best controller results. Read more
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fn sync_values(&self, timestamp: ClockTime) -> Result<(), BoolError>

Sets the properties of the object, according to the GstControlSources that (maybe) handle them and for the given timestamp. Read more
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fn unparent(&self)

Clear the parent of self, removing the associated reference. This function decreases the refcount of self. Read more
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fn connect_parent_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + Send + Sync + 'static,

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impl<O> GstObjectExtManual for O
where O: IsA<Object>,

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fn connect_deep_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&Self, &Object, &ParamSpec) + Send + Sync + 'static,

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fn set_object_flags(&self, flags: ObjectFlags)

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fn unset_object_flags(&self, flags: ObjectFlags)

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fn object_flags(&self) -> ObjectFlags

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fn g_value_array( &self, property_name: &str, timestamp: ClockTime, interval: ClockTime, values: &mut [Value], ) -> Result<(), BoolError>

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fn object_lock(&self) -> ObjectLockGuard<'_, Self>

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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> IntoClosureReturnValue for T
where T: Into<Value>,

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fn into_closure_return_value(self) -> Option<Value>

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<U> IsSubclassableExt for U
where U: IsClass + ParentClassIs,

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fn parent_class_init<T>(class: &mut Class<U>)
where T: ObjectSubclass, <U as ParentClassIs>::Parent: IsSubclassable<T>,

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fn parent_instance_init<T>(instance: &mut InitializingObject<T>)
where T: ObjectSubclass, <U as ParentClassIs>::Parent: IsSubclassable<T>,

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impl<T> ObjectExt for T
where T: ObjectType,

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fn is<U>(&self) -> bool
where U: StaticType,

Returns true if the object is an instance of (can be cast to) T.
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fn type_(&self) -> Type

Returns the type of the object.
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fn object_class(&self) -> &Class<Object>

Returns the ObjectClass of the object. Read more
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fn class(&self) -> &Class<T>
where T: IsClass,

Returns the class of the object.
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fn class_of<U>(&self) -> Option<&Class<U>>
where U: IsClass,

Returns the class of the object in the given type T. Read more
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fn interface<U>(&self) -> Option<InterfaceRef<'_, U>>
where U: IsInterface,

Returns the interface T of the object. Read more
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fn set_property(&self, property_name: &str, value: impl Into<Value>)

Sets the property property_name of the object to value value. Read more
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fn set_property_from_value(&self, property_name: &str, value: &Value)

Sets the property property_name of the object to value value. Read more
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fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])

Sets multiple properties of the object at once. Read more
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fn set_properties_from_value(&self, property_values: &[(&str, Value)])

Sets multiple properties of the object at once. Read more
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fn property<V>(&self, property_name: &str) -> V
where V: for<'b> FromValue<'b> + 'static,

Gets the property property_name of the object and cast it to the type V. Read more
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fn property_value(&self, property_name: &str) -> Value

Gets the property property_name of the object. Read more
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fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object has a property property_name of the given type_. Read more
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fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object. Read more
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fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Get the ParamSpec of the property property_name of this object.
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fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object.
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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more
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unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)
where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>
where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more
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unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>
where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more
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unsafe fn set_data<QD>(&self, key: &str, value: QD)
where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>
where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more
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unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>
where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more
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fn block_signal(&self, handler_id: &SignalHandlerId)

Block a given signal handler. Read more
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fn unblock_signal(&self, handler_id: &SignalHandlerId)

Unblock a given signal handler.
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fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)

Stop emission of the currently emitted signal.
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fn stop_signal_emission_by_name(&self, signal_name: &str)

Stop emission of the currently emitted signal by the (possibly detailed) signal name.
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fn connect<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_name on this object. Read more
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fn connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_id on this object. Read more
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fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_name on this object. Read more
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fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_id on this object. Read more
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unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_name on this object. Read more
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unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_id on this object. Read more
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fn connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure, ) -> SignalHandlerId

Connect a closure to the signal signal_name on this object. Read more
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fn connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure, ) -> SignalHandlerId

Connect a closure to the signal signal_id on this object. Read more
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fn watch_closure(&self, closure: &impl AsRef<Closure>)

Limits the lifetime of closure to the lifetime of the object. When the object’s reference count drops to zero, the closure will be invalidated. An invalidated closure will ignore any calls to invoke_with_values, or invoke when using Rust closures.
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fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> R
where R: TryFromClosureReturnValue,

Emit signal by signal id. Read more
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fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>

Same as Self::emit but takes Value for the arguments.
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fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> R
where R: TryFromClosureReturnValue,

Emit signal by its name. Read more
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fn emit_by_name_with_values( &self, signal_name: &str, args: &[Value], ) -> Option<Value>

Emit signal by its name. Read more
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fn emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue], ) -> R
where R: TryFromClosureReturnValue,

Emit signal by its name with details. Read more
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fn emit_by_name_with_details_and_values( &self, signal_name: &str, details: Quark, args: &[Value], ) -> Option<Value>

Emit signal by its name with details. Read more
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fn emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue], ) -> R
where R: TryFromClosureReturnValue,

Emit signal by signal id with details. Read more
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fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value], ) -> Option<Value>

Emit signal by signal id with details. Read more
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fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.
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fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + Send + Sync + 'static,

Connect to the notify signal of the object. Read more
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fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + 'static,

Connect to the notify signal of the object. Read more
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unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F, ) -> SignalHandlerId
where F: Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more
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fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more
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fn notify_by_pspec(&self, pspec: &ParamSpec)

Notify that the given property has changed its value. Read more
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fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.
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fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>
where F: FnOnce() + Send + 'static,

Add a callback to be notified when the Object is disposed.
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fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>
where F: FnOnce() + 'static,

Add a callback to be notified when the Object is disposed. Read more
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fn bind_property<'a, 'f, 't, O>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str, ) -> BindingBuilder<'a, 'f, 't>
where O: ObjectType,

Bind property source_property on this object to the target_property on the target object. Read more
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fn ref_count(&self) -> u32

Returns the strong reference count of this object.
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unsafe fn run_dispose(&self)

Runs the dispose mechanism of the object. Read more
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impl<O> PadExt for O
where O: IsA<Pad>,

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fn activate_mode(&self, mode: PadMode, active: bool) -> Result<(), BoolError>

Activates or deactivates the given pad in mode via dispatching to the pad’s activatemodefunc. For use from within pad activation functions only. Read more
Checks if the source pad and the sink pad are compatible so they can be linked. Read more
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fn chain(&self, buffer: Buffer) -> Result<FlowSuccess, FlowError>

Chain a buffer to self. Read more
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fn chain_list(&self, list: BufferList) -> Result<FlowSuccess, FlowError>

Chain a bufferlist to self. Read more
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fn check_reconfigure(&self) -> bool

Check and clear the PadFlags::NEED_RECONFIGURE flag on self and return true if the flag was set. Read more
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fn create_stream_id( &self, parent: &impl IsA<Element>, stream_id: Option<&str>, ) -> GString

Creates a stream-id for the source Pad self by combining the upstream information with the optional stream_id of the stream of self. self must have a parent Element and which must have zero or one sinkpad. stream_id can only be None if the parent element of self has only a single source pad. Read more
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fn forward<P>(&self, forward: P) -> bool
where P: FnMut(&Pad) -> bool,

Calls forward for all internally linked pads of self. This function deals with dynamically changing internal pads and will make sure that the forward function is only called once for each pad. Read more
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fn allowed_caps(&self) -> Option<Caps>

Gets the capabilities of the allowed media types that can flow through self and its peer. Read more
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fn current_caps(&self) -> Option<Caps>

Gets the capabilities currently configured on self with the last EventType::Caps event. Read more
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fn direction(&self) -> PadDirection

Gets the direction of the pad. The direction of the pad is decided at construction time so this function does not take the LOCK. Read more
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fn last_flow_result(&self) -> Result<FlowSuccess, FlowError>

Gets the FlowReturn return from the last data passed by this pad.
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fn offset(&self) -> i64

Get the offset applied to the running time of self. self has to be a source pad. Read more
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fn pad_template(&self) -> Option<PadTemplate>

Gets the template for self. Read more
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fn pad_template_caps(&self) -> Caps

Gets the capabilities for self’s template. Read more
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fn parent_element(&self) -> Option<Element>

Gets the parent of self, cast to a Element. If a self has no parent or its parent is not an element, return None. Read more
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fn peer(&self) -> Option<Pad>

Gets the peer of self. This function refs the peer pad so you need to unref it after use. Read more
If there is a single internal link of the given pad, this function will return it. Otherwise, it will return NULL. Read more
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fn stream(&self) -> Option<Stream>

Returns the current Stream for the self, or None if none has been set yet, i.e. the pad has not received a stream-start event yet. Read more
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fn stream_id(&self) -> Option<GString>

Returns the current stream-id for the self, or None if none has been set yet, i.e. the pad has not received a stream-start event yet. Read more
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fn task_state(&self) -> TaskState

Get self task state. If no task is currently set, TaskState::Stopped is returned. Read more
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fn has_current_caps(&self) -> bool

Check if self has caps set on it with a EventType::Caps event. Read more
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fn is_active(&self) -> bool

Query if a pad is active Read more
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fn is_blocked(&self) -> bool

Checks if the pad is blocked or not. This function returns the last requested state of the pad. It is not certain that the pad is actually blocking at this point (see is_blocking()). Read more
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fn is_blocking(&self) -> bool

Checks if the pad is blocking or not. This is a guaranteed state of whether the pad is actually blocking on a Buffer or a Event. Read more
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fn is_linked(&self) -> bool

Checks if a self is linked to another pad or not. Read more
Links the source pad and the sink pad. Read more
Links the source pad and the sink pad. Read more
Links self to sink, creating any GhostPad’s in between as necessary. Read more
Links self to sink, creating any GhostPad’s in between as necessary. Read more
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fn mark_reconfigure(&self)

Mark a pad for needing reconfiguration. The next call to check_reconfigure() will return true after this call.
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fn needs_reconfigure(&self) -> bool

Check the PadFlags::NEED_RECONFIGURE flag on self and return true if the flag was set. Read more
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fn pause_task(&self) -> Result<(), BoolError>

Pause the task of self. This function will also wait until the function executed by the task is finished if this function is not called from the task function. Read more
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fn peer_query_accept_caps(&self, caps: &Caps) -> bool

Check if the peer of self accepts caps. If self has no peer, this function returns true. Read more
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fn peer_query_caps(&self, filter: Option<&Caps>) -> Caps

Gets the capabilities of the peer connected to this pad. Similar to query_caps(). Read more
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fn push(&self, buffer: Buffer) -> Result<FlowSuccess, FlowError>

Pushes a buffer to the peer of self. Read more
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fn push_list(&self, list: BufferList) -> Result<FlowSuccess, FlowError>

Pushes a buffer list to the peer of self. Read more
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fn query_accept_caps(&self, caps: &Caps) -> bool

Check if the given pad accepts the caps. Read more
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fn query_caps(&self, filter: Option<&Caps>) -> Caps

Gets the capabilities this pad can produce or consume. Note that this method doesn’t necessarily return the caps set by sending a gst_event_new_caps() - use current_caps() for that instead. gst_pad_query_caps returns all possible caps a pad can operate with, using the pad’s CAPS query function, If the query fails, this function will return filter, if not None, otherwise ANY. Read more
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fn set_active(&self, active: bool) -> Result<(), BoolError>

Activates or deactivates the given pad. Normally called from within core state change functions. Read more
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fn set_offset(&self, offset: i64)

Set the offset that will be applied to the running time of self. Upon next buffer, every sticky events (notably segment) will be pushed again with their running time adjusted. For that reason this is only reliable on source pads. Read more
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fn stop_task(&self) -> Result<(), BoolError>

Stop the task of self. This function will also make sure that the function executed by the task will effectively stop if not called from the GstTaskFunction. Read more
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fn store_sticky_event(&self, event: &Event) -> Result<FlowSuccess, FlowError>

Store the sticky event on self Read more
Unlinks the source pad from the sink pad. Will emit the unlinked signal on both pads. Read more
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fn use_fixed_caps(&self)

A helper function you can use that sets the FIXED_CAPS flag This way the default CAPS query will always return the negotiated caps or in case the pad is not negotiated, the padtemplate caps. Read more
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fn connect_linked<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self, &Pad) + Send + Sync + 'static,

Signals that a pad has been linked to the peer pad. Read more
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fn connect_unlinked<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self, &Pad) + Send + Sync + 'static,

Signals that a pad has been unlinked from the peer pad. Read more
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fn connect_caps_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + Send + Sync + 'static,

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fn connect_offset_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + Send + Sync + 'static,

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impl<O> PadExtManual for O
where O: IsA<Pad>,

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fn add_probe<F>(&self, mask: PadProbeType, func: F) -> Option<PadProbeId>
where F: Fn(&Self, &mut PadProbeInfo<'_>) -> PadProbeReturn + Send + Sync + 'static,

Be notified of different states of pads. The provided callback is called for every state that matches mask. Read more
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fn remove_probe(&self, id: PadProbeId)

Remove the probe with id from self. Read more
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fn pull_range(&self, offset: u64, size: u32) -> Result<Buffer, FlowError>

Pulls a buffer from the peer pad or fills up a provided buffer. Read more
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fn pull_range_fill( &self, offset: u64, buffer: &mut BufferRef, size: u32, ) -> Result<(), FlowError>

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fn range(&self, offset: u64, size: u32) -> Result<Buffer, FlowError>

When self is flushing this function returns FlowReturn::Flushing immediately and buffer is None. Read more
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fn range_fill( &self, offset: u64, buffer: &mut BufferRef, size: u32, ) -> Result<(), FlowError>

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fn peer_query(&self, query: &mut QueryRef) -> bool

Performs query() on the peer of self. Read more
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fn query(&self, query: &mut QueryRef) -> bool

Dispatches a query to a pad. The query should have been allocated by the caller via one of the type-specific allocation functions. The element that the pad belongs to is responsible for filling the query with an appropriate response, which should then be parsed with a type-specific query parsing function. Read more
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fn proxy_query_caps(&self, query: &mut QueryRef) -> bool

Calls PadExt::query_caps() for all internally linked pads of self and returns the intersection of the results. Read more
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fn proxy_query_accept_caps(&self, query: &mut QueryRef) -> bool

Checks if all internally linked pads of self accepts the caps in query and returns the intersection of the results. Read more
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fn push_event(&self, event: impl Into<Event>) -> bool

Sends the event to the peer of the given pad. This function is mainly used by elements to send events to their peer elements. Read more
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fn send_event(&self, event: impl Into<Event>) -> bool

Sends the event to the pad. This function can be used by applications to send events in the pipeline. Read more
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fn stream_lock(&self) -> StreamLock<'_>

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unsafe fn set_activate_function<F>(&self, func: F)
where F: Fn(&Self, Option<&Object>) -> Result<(), LoggableError> + Send + Sync + 'static,

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unsafe fn set_activatemode_function<F>(&self, func: F)
where F: Fn(&Self, Option<&Object>, PadMode, bool) -> Result<(), LoggableError> + Send + Sync + 'static,

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unsafe fn set_chain_function<F>(&self, func: F)
where F: Fn(&Self, Option<&Object>, Buffer) -> Result<FlowSuccess, FlowError> + Send + Sync + 'static,

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unsafe fn set_chain_list_function<F>(&self, func: F)
where F: Fn(&Self, Option<&Object>, BufferList) -> Result<FlowSuccess, FlowError> + Send + Sync + 'static,

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unsafe fn set_event_function<F>(&self, func: F)
where F: Fn(&Self, Option<&Object>, Event) -> bool + Send + Sync + 'static,

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unsafe fn set_event_full_function<F>(&self, func: F)
where F: Fn(&Self, Option<&Object>, Event) -> Result<FlowSuccess, FlowError> + Send + Sync + 'static,

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unsafe fn set_getrange_function<F>(&self, func: F)
where F: Fn(&Self, Option<&Object>, u64, Option<&mut BufferRef>, u32) -> Result<PadGetRangeSuccess, FlowError> + Send + Sync + 'static,

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unsafe fn set_query_function<F>(&self, func: F)
where F: Fn(&Self, Option<&Object>, &mut QueryRef) -> bool + Send + Sync + 'static,

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fn start_task<F>(&self, func: F) -> Result<(), BoolError>
where F: FnMut() + Send + 'static,

Starts a task that repeatedly calls func with user_data. This function is mostly used in pad activation functions to start the dataflow. The GST_PAD_STREAM_LOCK of self will automatically be acquired before func is called. Read more
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fn peer_query_convert<U>(&self, src_val: impl FormattedValue) -> Option<U>
where U: SpecificFormattedValueFullRange,

Queries the peer pad of a given sink pad to convert src_val in src_format to dest_format. Read more
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fn peer_query_convert_generic( &self, src_val: impl FormattedValue, dest_format: Format, ) -> Option<GenericFormattedValue>

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fn peer_query_duration<T>(&self) -> Option<T>
where T: SpecificFormattedValueIntrinsic,

Queries the peer pad of a given sink pad for the total stream duration. Read more
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fn peer_query_duration_generic( &self, format: Format, ) -> Option<GenericFormattedValue>

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fn peer_query_position<T>(&self) -> Option<T>
where T: SpecificFormattedValueIntrinsic,

Queries the peer of a given sink pad for the stream position. Read more
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fn peer_query_position_generic( &self, format: Format, ) -> Option<GenericFormattedValue>

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fn query_convert<U>(&self, src_val: impl FormattedValue) -> Option<U>
where U: SpecificFormattedValueFullRange,

Queries a pad to convert src_val in src_format to dest_format. Read more
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fn query_convert_generic( &self, src_val: impl FormattedValue, dest_format: Format, ) -> Option<GenericFormattedValue>

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fn query_duration<T>(&self) -> Option<T>
where T: SpecificFormattedValueIntrinsic,

Queries a pad for the total stream duration. Read more
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fn query_duration_generic( &self, format: Format, ) -> Option<GenericFormattedValue>

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fn query_position<T>(&self) -> Option<T>
where T: SpecificFormattedValueIntrinsic,

Queries a pad for the stream position. Read more
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fn query_position_generic( &self, format: Format, ) -> Option<GenericFormattedValue>

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fn mode(&self) -> PadMode

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fn sticky_events_foreach<F>(&self, func: F)
where F: FnMut(&Event) -> ControlFlow<EventForeachAction, EventForeachAction>,

Iterates all sticky events on self and calls foreach_func for every event. If foreach_func returns false the iteration is immediately stopped. Read more
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fn sticky_event<T>(&self, idx: u32) -> Option<<T as ToOwned>::Owned>
where T: StickyEventType,

Returns a new reference of the sticky event of type event_type from the event. Read more
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fn set_pad_flags(&self, flags: PadFlags)

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fn unset_pad_flags(&self, flags: PadFlags)

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fn pad_flags(&self) -> PadFlags

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impl<T> Property for T
where T: HasParamSpec,

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type Value = T

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impl<T> PropertyGet for T
where T: HasParamSpec,

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type Value = T

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fn get<R, F>(&self, f: F) -> R
where F: Fn(&<T as PropertyGet>::Value) -> R,

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impl<T> StaticTypeExt for T
where T: StaticType,

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fn ensure_type()

Ensures that the type has been registered with the type system.
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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> ToSendValue for T
where T: Send + ToValue + ?Sized,

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fn to_send_value(&self) -> SendValue

Returns a SendValue clone of self.
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impl<T> TransparentType for T
where T: TransparentPtrType,

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type GlibType = <T as GlibPtrDefault>::GlibType

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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> TryFromClosureReturnValue for T
where T: for<'a> FromValue<'a> + StaticType + 'static,

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fn try_from_closure_return_value(v: Option<Value>) -> Result<T, BoolError>

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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<O> VideoAggregatorConvertPadExt for O
where O: IsA<VideoAggregatorConvertPad>,

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fn update_conversion_info(&self)

Requests the pad to check and update the converter before the next usage to update for any changes that have happened.
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impl<O> VideoAggregatorConvertPadExtManual for O
where O: IsA<VideoAggregatorConvertPad>,

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fn converter_config(&self) -> Option<VideoConverterConfig>

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fn set_converter_config(&self, converter_config: Option<&VideoConverterConfig>)

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fn connect_converter_config_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId

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impl<O> VideoAggregatorPadExt for O
where O: IsA<VideoAggregatorPad>,

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fn set_needs_alpha(&self, needs_alpha: bool)

Allows selecting that this pad requires an output format with alpha Read more
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fn max_last_buffer_repeat(&self) -> u64

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fn set_max_last_buffer_repeat(&self, max_last_buffer_repeat: u64)

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fn is_repeat_after_eos(&self) -> bool

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fn set_repeat_after_eos(&self, repeat_after_eos: bool)

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fn zorder(&self) -> u32

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fn set_zorder(&self, zorder: u32)

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fn connect_max_last_buffer_repeat_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId

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fn connect_repeat_after_eos_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId

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fn connect_zorder_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId

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impl<O> VideoAggregatorPadExtManual for O
where O: IsA<VideoAggregatorPad>,

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fn has_current_buffer(&self, _token: &AggregateFramesToken<'_>) -> bool

Checks if the pad currently has a buffer queued that is going to be used for the current output frame. Read more
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fn current_buffer(&self, _token: &AggregateFramesToken<'_>) -> Option<Buffer>

Returns the currently queued buffer that is going to be used for the current output frame. Read more
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fn prepared_frame<'a>( &self, _token: &'a AggregateFramesToken<'_>, ) -> Option<VideoFrameRef<&'a BufferRef>>

Returns the currently prepared video frame that has to be aggregated into the current output frame. Read more
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fn video_info(&self) -> Option<VideoInfo>

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impl<'a, T, C, E> FromValueOptional<'a> for T
where T: FromValue<'a, Checker = C>, C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError<E>>, E: Error + Send + 'static,

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impl<Super, Sub> MayDowncastTo<Sub> for Super
where Super: IsA<Super>, Sub: IsA<Super>,