#[repr(transparent)]pub struct Tracer { /* private fields */ }Expand description
Tracing modules will subclass Tracer and register through
gst_tracer_register(). Modules can attach to various hook-types - see
[tracing_register_hook()][crate::tracing_register_hook()]. When invoked they receive hook specific
contextual data, which they must not modify.
This is an Abstract Base Class, you cannot instantiate it.
Properties
params
Readable | Writeable | Construct
Object
name
Readable | Writeable | Construct
parent
The parent of the object. Please note, that when changing the ‘parent’
property, we don’t emit notify and deep-notify
signals due to locking issues. In some cases one can use
element-added or element-removed signals on the parent to
achieve a similar effect.
Readable | Writeable
Implements
Implementations§
Trait Implementations§
source§impl HasParamSpec for Tracer
impl HasParamSpec for Tracer
source§impl<T: TracerImpl> IsSubclassable<T> for Tracer
impl<T: TracerImpl> IsSubclassable<T> for Tracer
source§fn class_init(class: &mut Class<Self>)
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
source§fn instance_init(instance: &mut InitializingObject<T>)
fn instance_init(instance: &mut InitializingObject<T>)
Instance specific initialization. Read more
source§impl Ord for Tracer
impl Ord for Tracer
source§impl<OT: ObjectType> PartialEq<OT> for Tracer
impl<OT: ObjectType> PartialEq<OT> for Tracer
source§impl<OT: ObjectType> PartialOrd<OT> for Tracer
impl<OT: ObjectType> PartialOrd<OT> for Tracer
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self and other) and is used by the <=
operator. Read moresource§impl StaticType for Tracer
impl StaticType for Tracer
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl Eq for Tracer
impl IsA<Object> for Tracer
impl Send for Tracer
impl Sync for Tracer
Auto Trait Implementations§
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source§impl<T> Cast for Twhere
T: ObjectType,
impl<T> Cast for Twhere
T: ObjectType,
source§fn upcast<T>(self) -> Twhere
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Upcasts an object to a superclass or interface
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Tries to downcast to a reference of its subclass or interface implementor
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Tries to cast to reference to an object of type
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unsafe fn unsafe_cast<T>(self) -> Twhere
T: ObjectType,
Casts to
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unsafe fn unsafe_cast_ref<T>(&self) -> &Twhere
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fn into_closure_return_value(self) -> Option<Value>
source§impl<U> IsSubclassableExt for Uwhere
U: IsClass + ParentClassIs,
impl<U> IsSubclassableExt for Uwhere
U: IsClass + ParentClassIs,
fn parent_class_init<T>(class: &mut Class<U>)where
T: ObjectSubclass,
<U as ParentClassIs>::Parent: IsSubclassable<T>,
fn parent_instance_init<T>(instance: &mut InitializingObject<T>)where
T: ObjectSubclass,
<U as ParentClassIs>::Parent: IsSubclassable<T>,
source§impl<T> ObjectExt for Twhere
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impl<T> ObjectExt for Twhere
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source§fn is<U>(&self) -> boolwhere
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fn is<U>(&self) -> boolwhere
U: StaticType,
Returns
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fn object_class(&self) -> &Class<Object>
Returns the
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T of the object. Read moresource§fn set_property_from_value(&self, property_name: &str, value: &Value)
fn set_property_from_value(&self, property_name: &str, value: &Value)
source§fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])
fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])
Sets multiple properties of the object at once. Read more
source§fn set_properties_from_value(&self, property_values: &[(&str, Value)])
fn set_properties_from_value(&self, property_values: &[(&str, Value)])
Sets multiple properties of the object at once. Read more
source§fn property<V>(&self, property_name: &str) -> Vwhere
V: for<'b> FromValue<'b> + 'static,
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Gets the property
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fn property_value(&self, property_name: &str) -> Value
Gets the property
property_name of the object. Read moresource§fn property_type(&self, property_name: &str) -> Option<Type>
fn property_type(&self, property_name: &str) -> Option<Type>
Get the type of the property
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fn find_property(&self, property_name: &str) -> Option<ParamSpec>
Get the
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fn list_properties(&self) -> PtrSlice<ParamSpec>
Return all
ParamSpec of the properties of this object.source§fn freeze_notify(&self) -> PropertyNotificationFreezeGuard
fn freeze_notify(&self) -> PropertyNotificationFreezeGuard
Freeze all property notifications until the return guard object is dropped. Read more
source§unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where
QD: 'static,
unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where
QD: 'static,
Set arbitrary data on this object with the given
key. Read moresource§unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>where
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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 moresource§unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>where
QD: 'static,
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 moresource§unsafe fn set_data<QD>(&self, key: &str, value: QD)where
QD: 'static,
unsafe fn set_data<QD>(&self, key: &str, value: QD)where
QD: 'static,
Set arbitrary data on this object with the given
key. Read moresource§unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>where
QD: 'static,
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 moresource§unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>where
QD: 'static,
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 moresource§fn block_signal(&self, handler_id: &SignalHandlerId)
fn block_signal(&self, handler_id: &SignalHandlerId)
Block a given signal handler. Read more
source§fn unblock_signal(&self, handler_id: &SignalHandlerId)
fn unblock_signal(&self, handler_id: &SignalHandlerId)
Unblock a given signal handler.
source§fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
Stop emission of the currently emitted signal.
source§fn stop_signal_emission_by_name(&self, signal_name: &str)
fn stop_signal_emission_by_name(&self, signal_name: &str)
Stop emission of the currently emitted signal by the (possibly detailed) signal name.
source§fn connect<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn connect<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
Connect to the signal
signal_name on this object. Read moresource§fn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
Connect to the signal
signal_id on this object. Read moresource§fn connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
Connect to the signal
signal_name on this object. Read moresource§fn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
Connect to the signal
signal_id on this object. Read moresource§unsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
Connect to the signal
signal_name on this object. Read moresource§unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
Connect to the signal
signal_id on this object. Read moresource§fn connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
Connect a closure to the signal
signal_name on this object. Read moresource§fn connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> SignalHandlerId
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 moresource§fn watch_closure(&self, closure: &impl AsRef<Closure>)
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.source§fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
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fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
Emit signal by signal id. Read more
source§fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
Same as
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R: TryFromClosureReturnValue,
fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
Emit signal by its name. Read more
source§fn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
Emit signal by its name. Read more
source§fn emit_by_name_with_details<R>(
&self,
signal_name: &str,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name_with_details<R>(
&self,
signal_name: &str,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
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source§fn emit_by_name_with_details_and_values(
&self,
signal_name: &str,
details: Quark,
args: &[Value]
) -> Option<Value>
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
source§fn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
Emit signal by signal id with details. Read more
source§fn emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
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
source§fn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
Disconnect a previously connected signal handler.
source§fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
Connect to the
notify signal of the object. Read moresource§fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + 'static,
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + 'static,
Connect to the
notify signal of the object. Read moresource§unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
Connect to the
notify signal of the object. Read moresource§fn notify(&self, property_name: &str)
fn notify(&self, property_name: &str)
Notify that the given property has changed its value. Read more
source§fn notify_by_pspec(&self, pspec: &ParamSpec)
fn notify_by_pspec(&self, pspec: &ParamSpec)
Notify that the given property has changed its value. Read more
source§fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>where
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fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>where
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Add a callback to be notified when the Object is disposed.
source§fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where
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source§fn bind_property<'f, 't, O, 'a>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a, 'f, 't>where
O: ObjectType,
fn bind_property<'f, 't, O, 'a>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a, 'f, 't>where
O: ObjectType,
source§unsafe fn run_dispose(&self)
unsafe fn run_dispose(&self)
Runs the dispose mechanism of the object. Read more
source§impl<T> PropertyGet for Twhere
T: HasParamSpec,
impl<T> PropertyGet for Twhere
T: HasParamSpec,
source§impl<T> StaticTypeExt for Twhere
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impl<T> StaticTypeExt for Twhere
T: StaticType,
source§fn ensure_type()
fn ensure_type()
Ensures that the type has been registered with the type system.
source§impl<T> ToSendValue for Twhere
T: Send + ToValue + ?Sized,
impl<T> ToSendValue for Twhere
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source§fn to_send_value(&self) -> SendValue
fn to_send_value(&self) -> SendValue
Returns a
SendValue clone of self.