#[repr(transparent)]pub struct Stream { /* private fields */ }Expand description
A high-level object representing a single stream. It might be backed, or
not, by an actual flow of data in a pipeline (Pad).
A Stream does not care about data changes (such as decoding, encoding,
parsing,…) as long as the underlying data flow corresponds to the same
high-level flow (ex: a certain audio track).
A Stream contains all the information pertinent to a stream, such as
stream-id, tags, caps, type, …
Elements can subclass a Stream for internal usage (to contain information
pertinent to streams of data).
Properties
caps
Readable | Writeable
stream-flags
Readable | Writeable | Construct
stream-id
The unique identifier of the Stream. Can only be set at construction
time.
Readable | Writeable | Construct Only
stream-type
The StreamType of the Stream. Can only be set at construction time.
Readable | Writeable | Construct
tags
Readable | Writeable
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§
source§impl Stream
impl Stream
sourcepub fn new(
stream_id: Option<&str>,
caps: Option<&Caps>,
type_: StreamType,
flags: StreamFlags
) -> Stream
pub fn new(
stream_id: Option<&str>,
caps: Option<&Caps>,
type_: StreamType,
flags: StreamFlags
) -> Stream
sourcepub fn stream_flags(&self) -> StreamFlags
pub fn stream_flags(&self) -> StreamFlags
sourcepub fn stream_id(&self) -> Option<GString>
pub fn stream_id(&self) -> Option<GString>
Returns the stream ID of self.
Returns
the stream ID of self. Only valid
during the lifetime of self.
sourcepub fn stream_type(&self) -> StreamType
pub fn stream_type(&self) -> StreamType
sourcepub fn set_stream_flags(&self, flags: StreamFlags)
pub fn set_stream_flags(&self, flags: StreamFlags)
sourcepub fn set_stream_type(&self, stream_type: StreamType)
pub fn set_stream_type(&self, stream_type: StreamType)
pub fn connect_caps_notify<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_stream_flags_notify<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_stream_type_notify<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F
) -> SignalHandlerId
Trait Implementations§
source§impl HasParamSpec for Stream
impl HasParamSpec for Stream
source§impl Ord for Stream
impl Ord for Stream
source§impl<OT: ObjectType> PartialEq<OT> for Stream
impl<OT: ObjectType> PartialEq<OT> for Stream
source§impl<OT: ObjectType> PartialOrd<OT> for Stream
impl<OT: ObjectType> PartialOrd<OT> for Stream
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 Stream
impl StaticType for Stream
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl Eq for Stream
impl IsA<Object> for Stream
impl Send for Stream
impl Sync for Stream
Auto Trait Implementations§
Blanket Implementations§
source§impl<T> Cast for Twhere
T: ObjectType,
impl<T> Cast for Twhere
T: ObjectType,
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Upcasts an object to a superclass or interface
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fn upcast_ref<T>(&self) -> &Twhere
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Upcasts an object to a reference of its superclass or interface
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Self: CanDowncast<T>,
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Tries to downcast to a subclass or interface implementor
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Self: CanDowncast<T>,
fn downcast_ref<T>(&self) -> Option<&T>where
T: ObjectType,
Self: CanDowncast<T>,
Tries to downcast to a reference of its subclass or interface implementor
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Tries to cast to an object of type
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and casting between interface and interface implementors. All checks are performed at
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Tries to cast to reference to an object of type
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and casting between interface and interface implementors. All checks are performed at
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Casts to
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fn list_properties(&self) -> PtrSlice<ParamSpec>
Return all
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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
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unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where
QD: 'static,
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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
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Connect to the signal
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
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fn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
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&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
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&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
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&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
R: TryFromClosureReturnValue,
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,
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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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&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>
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&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
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&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
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&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
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&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
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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,
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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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Add a callback to be notified when the Object is disposed.
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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,
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&'a self,
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target_property: &'a str
) -> BindingBuilder<'a, 'f, 't>where
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unsafe fn run_dispose(&self)
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impl<T> PropertyGet for Twhere
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fn ensure_type()
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