Struct gstreamer :: ProxyPad Copy item path

impl ProxyPad

pub fn chain_default<O: IsA<ProxyPad>>( pad: &O, parent: Option<&impl IsA<Object>>, buffer: Buffer, ) -> Result<FlowSuccess, FlowError>

Invoke the default chain function of the proxy pad.

§`pad`

a sink Pad, returns GST_FLOW_ERROR if not.

§`parent`

the parent of pad or None

§`buffer`

the Buffer to send, return GST_FLOW_ERROR if not.

§Returns

a FlowReturn from the pad.

pub fn chain_list_default<O: IsA<ProxyPad>>( pad: &O, parent: Option<&impl IsA<Object>>, list: BufferList, ) -> Result<FlowSuccess, FlowError>

Invoke the default chain list function of the proxy pad.

§`pad`

a sink Pad, returns GST_FLOW_ERROR if not.

§`parent`

the parent of pad or None

§`list`

the BufferList to send, return GST_FLOW_ERROR if not.

§Returns

a FlowReturn from the pad.

pub fn getrange_default<O: IsA<ProxyPad>>( pad: &O, parent: Option<&impl IsA<Object>>, offset: u64, size: u32, ) -> Result<Buffer, FlowError>

Invoke the default getrange function of the proxy pad.

§`pad`

a src Pad, returns FlowReturn::Error if not.

§`parent`

the parent of pad

§`offset`

The start offset of the buffer

§`size`

The length of the buffer

§Returns

a FlowReturn from the pad.

§`buffer`

a pointer to hold the Buffer, returns FlowReturn::Error if None.

pub fn iterate_internal_links_default<O: IsA<ProxyPad>>( pad: &O, parent: Option<&impl IsA<Object>>, ) -> Option<Iterator<Pad>>

Invoke the default iterate internal links function of the proxy pad.

§`pad`

the Pad to get the internal links of.

§`parent`

the parent of pad or None

§Returns

a GstIterator of Pad, or None if pad has no parent. Unref each returned pad with gst_object_unref().

Trait Implementations§

impl Clone for ProxyPad

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.

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl Debug for ProxyPad

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

Formats the value using the given formatter. Read more

impl HasParamSpec for ProxyPad

type ParamSpec = ParamSpecObject

type SetValue = ProxyPad

Preferred value to be used as setter for the associated ParamSpec.

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

Hashes the memory address of this object.

1.3.0 · source§

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

impl<T: ProxyPadImpl> IsSubclassable<T> for ProxyPad

fn class_init(class: &mut Class<Self>)

Override the virtual methods of this class for the given subclass and do other class initialization. Read more

fn instance_init(instance: &mut InitializingObject<T>)

Instance specific initialization. Read more

impl Ord for ProxyPad

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

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

1.21.0 · source§

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

Compares and returns the maximum of two values. Read more

1.21.0 · source§

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

Compares and returns the minimum of two values. Read more

1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more

impl ParentClassIs for ProxyPad

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

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

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

1.0.0 · source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for ProxyPad

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

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

1.0.0 · source§

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

Tests less than (for self and other) and is used by the < operator. Read more

1.0.0 · source§

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

Tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0 · source§

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

Tests greater than (for self and other) and is used by the > operator. Read more

1.0.0 · source§

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

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

impl StaticType for ProxyPad

fn static_type() -> Type

Returns the type identifier of Self.

impl IsA<ProxyPad> for GhostPad

Auto Trait Implementations§

impl RefUnwindSafe for ProxyPad

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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

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

Upcasts an object to a superclass or interface T. Read more

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

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

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

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

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

unsafe fn unsafe_cast<T>(self) -> T
where T: ObjectType,

Casts to T unconditionally. Read more

unsafe fn unsafe_cast_ref<T>(&self) -> &T
where T: ObjectType,

Casts to &T unconditionally. Read more

impl<T> CloneToUninit for T
where T: Clone,

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

fn has_active_control_bindings(&self) -> bool

Check if the self has active controlled properties. Read more

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

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

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

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

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

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

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

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

fn suggest_next_sync(&self) -> Option<ClockTime>

Returns a suggestion for timestamps where buffers should be split to get best controller results. Read more

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

fn unparent(&self)

Clear the parent of self, removing the associated reference. This function decreases the refcount of self. Read more

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

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

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

fn set_object_flags(&self, flags: ObjectFlags)

fn unset_object_flags(&self, flags: ObjectFlags)

fn object_flags(&self) -> ObjectFlags

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

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

impl<T, U> Into for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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

fn into_closure_return_value(self) -> Option<Value>

impl<T> IntoEither for T

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

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

impl IsSubclassableExt for U
where U: IsClass + ParentClassIs,

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

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

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

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

Returns true if the object is an instance of (can be cast to) T.

fn type_(&self) -> Type

Returns the type of the object.

fn object_class(&self) -> &Class<Object>

Returns the ObjectClass of the object. Read more

fn class(&self) -> &Class<T>
where T: IsClass,

Returns the class of the object.

fn class_of(&self) -> Option<&Class>
where U: IsClass,

Returns the class of the object in the given type T. Read more

fn interface(&self) -> Option<InterfaceRef<'_, U>>
where U: IsInterface,

Returns the interface T of the object. Read more

fn set_property(&self, property_name: &str, value: impl Into<Value>)

Sets the property property_name of the object to value value. Read more

fn set_property_from_value(&self, property_name: &str, value: &Value)

Sets the property property_name of the object to value value. Read more

fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])

Sets multiple properties of the object at once. Read more

fn set_properties_from_value(&self, property_values: &[(&str, Value)])

Sets multiple properties of the object at once. Read more

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

fn property_value(&self, property_name: &str) -> Value

Gets the property property_name of the object. Read more

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

fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object. Read more

fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Get the ParamSpec of the property property_name of this object.

fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object.

fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more

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

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

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

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

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

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

fn block_signal(&self, handler_id: &SignalHandlerId)

Block a given signal handler. Read more

fn unblock_signal(&self, handler_id: &SignalHandlerId)

Unblock a given signal handler.

fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)

Stop emission of the currently emitted signal.

fn stop_signal_emission_by_name(&self, signal_name: &str)

Stop emission of the currently emitted signal by the (possibly detailed) signal name.

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

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

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

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

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

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

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

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

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.

fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> R
where R: TryFromClosureReturnValue,

Emit signal by signal id. Read more

fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>

Same as Self::emit but takes Value for the arguments.

fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> R
where R: TryFromClosureReturnValue,

Emit signal by its name. Read more

fn emit_by_name_with_values( &self, signal_name: &str, args: &[Value], ) -> Option<Value>

Emit signal by its name. Read more

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

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

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

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

fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.

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

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

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

fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more

fn notify_by_pspec(&self, pspec: &ParamSpec)

Notify that the given property has changed its value. Read more

fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.

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.

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

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

fn ref_count(&self) -> u32

Returns the strong reference count of this object.

unsafe fn run_dispose(&self)

Runs the dispose mechanism of the object. Read more

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

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

fn can_link(&self, sinkpad: &impl IsA<Pad>) -> bool

Checks if the source pad and the sink pad are compatible so they can be linked. Read more

fn chain(&self, buffer: Buffer) -> Result<FlowSuccess, FlowError>

Chain a buffer to self. Read more

fn chain_list(&self, list: BufferList) -> Result<FlowSuccess, FlowError>

Chain a bufferlist to self. Read more

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

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

fn forward<P: FnMut(&Pad) -> bool>(&self, forward: P) -> 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

fn allowed_caps(&self) -> Option<Caps>

Gets the capabilities of the allowed media types that can flow through self and its peer. Read more

fn current_caps(&self) -> Option<Caps>

Gets the capabilities currently configured on self with the last EventType::Caps event. Read more

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

fn last_flow_result(&self) -> Result<FlowSuccess, FlowError>

Gets the FlowReturn return from the last data passed by this pad.

fn offset(&self) -> i64

Get the offset applied to the running time of self. self has to be a source pad. Read more

fn pad_template(&self) -> Option<PadTemplate>

Gets the template for self. Read more

fn pad_template_caps(&self) -> Caps

Gets the capabilities for self’s template. Read more

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

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

fn single_internal_link(&self) -> Option<Pad>

If there is a single internal link of the given pad, this function will return it. Otherwise, it will return NULL. Read more

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

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

fn task_state(&self) -> TaskState

Get self task state. If no task is currently set, TaskState::Stopped is returned. Read more

fn has_current_caps(&self) -> bool

Check if self has caps set on it with a EventType::Caps event. Read more

fn is_active(&self) -> bool

Query if a pad is active Read more

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

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

fn is_linked(&self) -> bool

Checks if a self is linked to another pad or not. Read more

fn link(&self, sinkpad: &impl IsA<Pad>) -> Result<PadLinkSuccess, PadLinkError>

Links the source pad and the sink pad. Read more

fn link_full( &self, sinkpad: &impl IsA<Pad>, flags: PadLinkCheck, ) -> Result<PadLinkSuccess, PadLinkError>

Links the source pad and the sink pad. Read more

fn link_maybe_ghosting(&self, sink: &impl IsA<Pad>) -> Result<(), BoolError>

Links self to sink, creating any GhostPad’s in between as necessary. Read more

fn link_maybe_ghosting_full( &self, sink: &impl IsA<Pad>, flags: PadLinkCheck, ) -> Result<(), BoolError>

Links self to sink, creating any GhostPad’s in between as necessary. Read more

fn mark_reconfigure(&self)

Mark a pad for needing reconfiguration. The next call to check_reconfigure() will return true after this call.

fn needs_reconfigure(&self) -> bool

Check the PadFlags::NEED_RECONFIGURE flag on self and return true if the flag was set. Read more

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

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

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

fn push(&self, buffer: Buffer) -> Result<FlowSuccess, FlowError>

Pushes a buffer to the peer of self. Read more

fn push_list(&self, list: BufferList) -> Result<FlowSuccess, FlowError>

Pushes a buffer list to the peer of self. Read more

fn query_accept_caps(&self, caps: &Caps) -> bool

Check if the given pad accepts the caps. Read more

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

fn set_active(&self, active: bool) -> Result<(), BoolError>

Activates or deactivates the given pad. Normally called from within core state change functions. Read more

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

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

fn store_sticky_event(&self, event: &Event) -> Result<FlowSuccess, FlowError>

Store the sticky event on self Read more

fn unlink(&self, sinkpad: &impl IsA<Pad>) -> Result<(), BoolError>

Unlinks the source pad from the sink pad. Will emit the unlinked signal on both pads. Read more

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

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

Signals that a pad has been linked to the peer pad. Read more

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

Signals that a pad has been unlinked from the peer pad. Read more

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

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

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

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

fn remove_probe(&self, id: PadProbeId)

Remove the probe with id from self. Read more

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

fn pull_range_fill( &self, offset: u64, buffer: &mut BufferRef, size: u32, ) -> Result<(), FlowError>

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

fn range_fill( &self, offset: u64, buffer: &mut BufferRef, size: u32, ) -> Result<(), FlowError>

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

Performs query() on the peer of self. Read more

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

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

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

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

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

fn iterate_internal_links(&self) -> Iterator<Pad>

fn stream_lock(&self) -> StreamLock<'_>

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

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

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

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

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

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

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,

unsafe fn set_iterate_internal_links_function<F>(&self, func: F)
where F: Fn(&Self, Option<&Object>) -> Iterator<Pad> + Send + Sync + 'static,

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

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

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

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

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

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

Queries the peer pad of a given sink pad to convert src_val in src_format to dest_format. Read more

fn peer_query_convert_generic( &self, src_val: impl FormattedValue, dest_format: Format, ) -> Option<GenericFormattedValue>

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

Queries the peer pad of a given sink pad for the total stream duration. Read more

fn peer_query_duration_generic( &self, format: Format, ) -> Option<GenericFormattedValue>

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

Queries the peer of a given sink pad for the stream position. Read more

fn peer_query_position_generic( &self, format: Format, ) -> Option<GenericFormattedValue>

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

Queries a pad to convert src_val in src_format to dest_format. Read more

fn query_convert_generic( &self, src_val: impl FormattedValue, dest_format: Format, ) -> Option<GenericFormattedValue>

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

Queries a pad for the total stream duration. Read more

fn query_duration_generic( &self, format: Format, ) -> Option<GenericFormattedValue>

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

Queries a pad for the stream position. Read more

fn query_position_generic( &self, format: Format, ) -> Option<GenericFormattedValue>

fn mode(&self) -> PadMode

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

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