Struct gstreamer_rtp::RTPBasePayload
source · pub struct RTPBasePayload { /* private fields */ }Expand description
Provides a base class for RTP payloaders
This is an Abstract Base Class, you cannot instantiate it.
§Properties
§auto-header-extension
If enabled, the payloader will automatically try to enable all the RTP header extensions provided in the src caps, saving the application the need to handle these extensions manually using the GstRTPBasePayload::request-extension: signal.
Readable | Writeable
§extensions
A list of already enabled RTP header extensions. This may be useful for finding out which extensions are already enabled (with add-extension signal) and picking a non-conflicting ID for a new extension that needs to be added on top of the existing ones.
Note that the value returned by reading this property is not dynamically updated when the set of enabled extensions changes by any of existing action signals. Rather, it represents the current state at the time the property is read.
Dynamic updates of this property can be received by subscribing to its corresponding “notify” signal, i.e. “notify::extensions”.
Readable
§max-ptime
Readable | Writeable
§min-ptime
Minimum duration of the packet data in ns (can’t go above MTU)
Readable | Writeable
§mtu
Readable | Writeable
§onvif-no-rate-control
Make the payloader timestamp packets according to the Rate-Control=no behaviour specified in the ONVIF replay spec.
Readable | Writeable
§perfect-rtptime
Try to use the offset fields to generate perfect RTP timestamps. When this option is disabled, RTP timestamps are generated from GST_BUFFER_PTS of each payloaded buffer. The PTSes of buffers may not necessarily increment with the amount of data in each input buffer, consider e.g. the case where the buffer arrives from a network which means that the PTS is unrelated to the amount of data. Because the RTP timestamps are generated from GST_BUFFER_PTS this can result in RTP timestamps that also don’t increment with the amount of data in the payloaded packet. To circumvent this it is possible to set the perfect rtptime option enabled. When this option is enabled the payloader will increment the RTP timestamps based on GST_BUFFER_OFFSET which relates to the amount of data in each packet rather than the GST_BUFFER_PTS of each buffer and therefore the RTP timestamps will more closely correlate with the amount of data in each buffer. Currently GstRTPBasePayload is limited to handling perfect RTP timestamps for audio streams.
Readable | Writeable
§pt
Readable | Writeable
§ptime-multiple
Force buffers to be multiples of this duration in ns (0 disables)
Readable | Writeable
§scale-rtptime
Make the RTP packets’ timestamps be scaled with the segment’s rate (corresponding to RTSP speed parameter). Disabling this property means the timestamps will not be affected by the set delivery speed (RTSP speed).
Example: A server wants to allow streaming a recorded video in double speed but still have the timestamps correspond to the position in the video. This is achieved by the client setting RTSP Speed to 2 while the server has this property disabled.
Readable | Writeable
§seqnum
Readable
§seqnum-offset
Readable | Writeable
§source-info
Enable writing the CSRC field in allocated RTP header based on RTP source
information found in the input buffer’s GstRTPSourceMeta.
Readable | Writeable
§ssrc
Readable | Writeable
§stats
Various payloader statistics retrieved atomically (and are therefore synchroized with each other), these can be used e.g. to generate an RTP-Info header. This property return a GstStructure named application/x-rtp-payload-stats containing the following fields relating to the last processed buffer and current state of the stream being payloaded:
clock-rate:G_TYPE_UINT, clock-rate of the streamrunning-time:G_TYPE_UINT64, running timeseqnum:G_TYPE_UINT, sequence number, same asseqnumtimestamp:G_TYPE_UINT, RTP timestamp, same astimestampssrc:G_TYPE_UINT, The SSRC in usept:G_TYPE_UINT, The Payload type in use, same asptseqnum-offset:G_TYPE_UINT, The current offset added to the seqnumtimestamp-offset:G_TYPE_UINT, The current offset added to the timestamp
Readable
§timestamp
Readable
§timestamp-offset
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 GObject::notify and deep-notify
signals due to locking issues. In some cases one can use
GstBin::element-added or GstBin::element-removed signals on the parent to
achieve a similar effect.
Readable | Writeable
§Signals
§add-extension
Add ext as an extension for writing part of an RTP header extension onto
outgoing RTP packets.
Action
§clear-extensions
Clear all RTP header extensions used by this payloader.
Action
§request-extension
The returned ext must be configured with the correct ext_id and with the
necessary attributes as required by the extension implementation.
Element
§no-more-pads
This signals that the element will not generate more dynamic pads. Note that this signal will usually be emitted from the context of the streaming thread.
§pad-added
a new GstPad has been added to the element. Note that this signal will
usually be emitted from the context of the streaming thread. Also keep in
mind that if you add new elements to the pipeline in the signal handler
you will need to set them to the desired target state with
[ElementExtManual::set_state()][crate::gst::prelude::ElementExtManual::set_state()] or [ElementExtManual::sync_state_with_parent()][crate::gst::prelude::ElementExtManual::sync_state_with_parent()].
§pad-removed
a GstPad has been removed from the element
Object
§deep-notify
The deep notify signal is used to be notified of property changes. It is typically attached to the toplevel bin to receive notifications from all the elements contained in that bin.
Detailed
§Implements
RTPBasePayloadExt, gst::prelude::ElementExt, gst::prelude::ObjectExt, RTPBasePayloadExtManual
GLib type: GObject with reference counted clone semantics.
Implementations§
source§impl RTPBasePayload
impl RTPBasePayload
pub const NONE: Option<&'static RTPBasePayload> = None
Trait Implementations§
source§impl Clone for RTPBasePayload
impl Clone for RTPBasePayload
source§impl Debug for RTPBasePayload
impl Debug for RTPBasePayload
source§impl HasParamSpec for RTPBasePayload
impl HasParamSpec for RTPBasePayload
type ParamSpec = ParamSpecObject
§type SetValue = RTPBasePayload
type SetValue = RTPBasePayload
Preferred value to be used as setter for the associated ParamSpec.
type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, RTPBasePayload>
fn param_spec_builder() -> Self::BuilderFn
source§impl Hash for RTPBasePayload
impl Hash for RTPBasePayload
source§impl<T: RTPBasePayloadImpl> IsSubclassable<T> for RTPBasePayload
impl<T: RTPBasePayloadImpl> IsSubclassable<T> for RTPBasePayload
source§fn class_init(klass: &mut Class<Self>)
fn class_init(klass: &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 RTPBasePayload
impl Ord for RTPBasePayload
source§fn cmp(&self, other: &Self) -> Ordering
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) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
source§impl ParentClassIs for RTPBasePayload
impl ParentClassIs for RTPBasePayload
source§impl<OT: ObjectType> PartialEq<OT> for RTPBasePayload
impl<OT: ObjectType> PartialEq<OT> for RTPBasePayload
source§impl<OT: ObjectType> PartialOrd<OT> for RTPBasePayload
impl<OT: ObjectType> PartialOrd<OT> for RTPBasePayload
source§impl StaticType for RTPBasePayload
impl StaticType for RTPBasePayload
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl Eq for RTPBasePayload
impl IsA<Element> for RTPBasePayload
impl IsA<Object> for RTPBasePayload
impl Send for RTPBasePayload
impl Sync for RTPBasePayload
Auto Trait Implementations§
impl Freeze for RTPBasePayload
impl RefUnwindSafe for RTPBasePayload
impl Unpin for RTPBasePayload
impl UnwindSafe for RTPBasePayload
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
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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Upcasts an object to a reference of its superclass or interface
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Tries to downcast to a subclass or interface implementor
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Tries to downcast to a reference of its subclass or interface implementor
T. Read moresource§fn dynamic_cast<T>(self) -> Result<T, Self>where
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fn dynamic_cast<T>(self) -> Result<T, Self>where
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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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perform the same checks at runtime as dynamic_cast, but will also ensure some amount of
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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
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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 moresource§unsafe fn unsafe_cast<T>(self) -> Twhere
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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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Casts to
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T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit)source§impl<O> ElementExt for O
impl<O> ElementExt for O
source§fn abort_state(&self)
fn abort_state(&self)
Abort the state change of the element. This function is used
by elements that do asynchronous state changes and find out
something is wrong. Read more
source§fn add_pad(&self, pad: &impl IsA<Pad>) -> Result<(), BoolError>
fn add_pad(&self, pad: &impl IsA<Pad>) -> Result<(), BoolError>
Adds a pad (link point) to
self. pad’s parent will be set to self;
see GstObjectExt::set_parent() for refcounting information. Read moresource§fn change_state(
&self,
transition: StateChange,
) -> Result<StateChangeSuccess, StateChangeError>
fn change_state( &self, transition: StateChange, ) -> Result<StateChangeSuccess, StateChangeError>
source§fn continue_state(
&self,
ret: impl Into<StateChangeReturn>,
) -> Result<StateChangeSuccess, StateChangeError>
fn continue_state( &self, ret: impl Into<StateChangeReturn>, ) -> Result<StateChangeSuccess, StateChangeError>
Commit the state change of the element and proceed to the next
pending state if any. This function is used
by elements that do asynchronous state changes.
The core will normally call this method automatically when an
element returned
StateChangeReturn::Success from the state change function. Read moresource§fn create_all_pads(&self)
fn create_all_pads(&self)
Creates a pad for each pad template that is always available.
This function is only useful during object initialization of
subclasses of
Element.source§fn decorate_stream_id(&self, stream_id: &str) -> GString
fn decorate_stream_id(&self, stream_id: &str) -> GString
source§fn foreach_pad<P>(&self, func: P) -> bool
fn foreach_pad<P>(&self, func: P) -> bool
Call
func with user_data for each of self’s pads. func will be called
exactly once for each pad that exists at the time of this call, unless
one of the calls to func returns false in which case we will stop
iterating pads and return early. If new pads are added or pads are removed
while pads are being iterated, this will not be taken into account until
next time this function is used. Read moresource§fn foreach_sink_pad<P>(&self, func: P) -> bool
fn foreach_sink_pad<P>(&self, func: P) -> bool
Call
func with user_data for each of self’s sink pads. func will be
called exactly once for each sink pad that exists at the time of this call,
unless one of the calls to func returns false in which case we will stop
iterating pads and return early. If new sink pads are added or sink pads
are removed while the sink pads are being iterated, this will not be taken
into account until next time this function is used. Read moresource§fn foreach_src_pad<P>(&self, func: P) -> bool
fn foreach_src_pad<P>(&self, func: P) -> bool
Call
func with user_data for each of self’s source pads. func will be
called exactly once for each source pad that exists at the time of this call,
unless one of the calls to func returns false in which case we will stop
iterating pads and return early. If new source pads are added or source pads
are removed while the source pads are being iterated, this will not be taken
into account until next time this function is used. Read moresource§fn base_time(&self) -> Option<ClockTime>
fn base_time(&self) -> Option<ClockTime>
Returns the base time of the element. The base time is the
absolute time of the clock when this element was last put to
PLAYING. Subtracting the base time from the clock time gives
the running time of the element. Read more
source§fn clock(&self) -> Option<Clock>
fn clock(&self) -> Option<Clock>
Gets the currently configured clock of the element. This is the clock as was
last set with
set_clock(). Read moresource§fn compatible_pad(
&self,
pad: &impl IsA<Pad>,
caps: Option<&Caps>,
) -> Option<Pad>
fn compatible_pad( &self, pad: &impl IsA<Pad>, caps: Option<&Caps>, ) -> Option<Pad>
Looks for an unlinked pad to which the given pad can link. It is not
guaranteed that linking the pads will work, though it should work in most
cases. Read more
source§fn compatible_pad_template(
&self,
compattempl: &PadTemplate,
) -> Option<PadTemplate>
fn compatible_pad_template( &self, compattempl: &PadTemplate, ) -> Option<PadTemplate>
Retrieves a pad template from
self that is compatible with compattempl.
Pads from compatible templates can be linked together. Read moresource§fn context(&self, context_type: &str) -> Option<Context>
fn context(&self, context_type: &str) -> Option<Context>
Gets the context with
context_type set on the element or NULL. Read moresource§fn factory(&self) -> Option<ElementFactory>
fn factory(&self) -> Option<ElementFactory>
Retrieves the factory that was used to create this element. Read more
source§fn start_time(&self) -> Option<ClockTime>
fn start_time(&self) -> Option<ClockTime>
Returns the start time of the element. The start time is the
running time of the clock when this element was last put to PAUSED. Read more
source§fn state(
&self,
timeout: impl Into<Option<ClockTime>>,
) -> (Result<StateChangeSuccess, StateChangeError>, State, State)
fn state( &self, timeout: impl Into<Option<ClockTime>>, ) -> (Result<StateChangeSuccess, StateChangeError>, State, State)
Gets the state of the element. Read more
source§fn static_pad(&self, name: &str) -> Option<Pad>
fn static_pad(&self, name: &str) -> Option<Pad>
Retrieves a pad from
self by name. This version only retrieves
already-existing (i.e. ‘static’) pads. Read moresource§fn is_locked_state(&self) -> bool
fn is_locked_state(&self) -> bool
Checks if the state of an element is locked.
If the state of an element is locked, state changes of the parent don’t
affect the element.
This way you can leave currently unused elements inside bins. Just lock their
state before changing the state from
State::Null. Read moresource§fn lost_state(&self)
fn lost_state(&self)
Brings the element to the lost state. The current state of the
element is copied to the pending state so that any call to
state() will return StateChangeReturn::Async. Read moresource§fn no_more_pads(&self)
fn no_more_pads(&self)
Use this function to signal that the element does not expect any more pads
to show up in the current pipeline. This function should be called whenever
pads have been added by the element itself. Elements with
PadPresence::Sometimes
pad templates use this in combination with autopluggers to figure out that
the element is done initializing its pads. Read moresource§fn provide_clock(&self) -> Option<Clock>
fn provide_clock(&self) -> Option<Clock>
Get the clock provided by the given element. Read more
source§fn release_request_pad(&self, pad: &impl IsA<Pad>)
fn release_request_pad(&self, pad: &impl IsA<Pad>)
Makes the element free the previously requested pad as obtained
with
request_pad(). Read moresource§fn remove_pad(&self, pad: &impl IsA<Pad>) -> Result<(), BoolError>
fn remove_pad(&self, pad: &impl IsA<Pad>) -> Result<(), BoolError>
Removes
pad from self. pad will be destroyed if it has not been
referenced elsewhere using GstObjectExt::unparent(). Read moresource§fn request_pad(
&self,
templ: &PadTemplate,
name: Option<&str>,
caps: Option<&Caps>,
) -> Option<Pad>
fn request_pad( &self, templ: &PadTemplate, name: Option<&str>, caps: Option<&Caps>, ) -> Option<Pad>
Retrieves a request pad from the element according to the provided template.
Pad templates can be looked up using
ElementFactory::static_pad_templates(). Read moresource§fn set_base_time(&self, time: ClockTime)
fn set_base_time(&self, time: ClockTime)
Set the base time of an element. See
base_time(). Read moresource§fn set_bus(&self, bus: Option<&Bus>)
fn set_bus(&self, bus: Option<&Bus>)
Sets the bus of the element. Increases the refcount on the bus.
For internal use only, unless you’re testing elements. Read more
source§fn set_clock(&self, clock: Option<&impl IsA<Clock>>) -> Result<(), BoolError>
fn set_clock(&self, clock: Option<&impl IsA<Clock>>) -> Result<(), BoolError>
Sets the clock for the element. This function increases the
refcount on the clock. Any previously set clock on the object
is unreffed. Read more
source§fn set_context(&self, context: &Context)
fn set_context(&self, context: &Context)
Sets the context of the element. Increases the refcount of the context. Read more
source§fn set_locked_state(&self, locked_state: bool) -> bool
fn set_locked_state(&self, locked_state: bool) -> bool
Locks the state of an element, so state changes of the parent don’t affect
this element anymore. Read more
source§fn set_start_time(&self, time: impl Into<Option<ClockTime>>)
fn set_start_time(&self, time: impl Into<Option<ClockTime>>)
Set the start time of an element. The start time of the element is the
running time of the element when it last went to the PAUSED state. In READY
or after a flushing seek, it is set to 0. Read more
source§fn set_state(
&self,
state: State,
) -> Result<StateChangeSuccess, StateChangeError>
fn set_state( &self, state: State, ) -> Result<StateChangeSuccess, StateChangeError>
Sets the state of the element. This function will try to set the
requested state by going through all the intermediary states and calling
the class’s state change function for each. Read more
source§fn unlink(&self, dest: &impl IsA<Element>)
fn unlink(&self, dest: &impl IsA<Element>)
Unlinks all source pads of the source element with all sink pads
of the sink element to which they are linked. Read more
source§fn unlink_pads(
&self,
srcpadname: &str,
dest: &impl IsA<Element>,
destpadname: &str,
)
fn unlink_pads( &self, srcpadname: &str, dest: &impl IsA<Element>, destpadname: &str, )
Unlinks the two named pads of the source and destination elements. Read more
source§fn connect_no_more_pads<F>(&self, f: F) -> SignalHandlerId
fn connect_no_more_pads<F>(&self, f: F) -> SignalHandlerId
This signals that the element will not generate more dynamic pads.
Note that this signal will usually be emitted from the context of
the streaming thread.
source§fn connect_pad_added<F>(&self, f: F) -> SignalHandlerId
fn connect_pad_added<F>(&self, f: F) -> SignalHandlerId
a new
Pad has been added to the element. Note that this signal will
usually be emitted from the context of the streaming thread. Also keep in
mind that if you add new elements to the pipeline in the signal handler
you will need to set them to the desired target state with
set_state() or sync_state_with_parent(). Read moresource§fn connect_pad_removed<F>(&self, f: F) -> SignalHandlerId
fn connect_pad_removed<F>(&self, f: F) -> SignalHandlerId
source§impl<O> ElementExtManual for O
impl<O> ElementExtManual for O
fn element_class(&self) -> &Class<Element>
fn current_state(&self) -> State
fn pending_state(&self) -> State
source§fn query(&self, query: &mut QueryRef) -> bool
fn query(&self, query: &mut QueryRef) -> bool
Performs a query on the given element. Read more
source§fn send_event(&self, event: impl Into<Event>) -> bool
fn send_event(&self, event: impl Into<Event>) -> bool
Sends an event to an element. If the element doesn’t implement an
event handler, the event will be pushed on a random linked sink pad for
downstream events or a random linked source pad for upstream events. Read more
source§fn pad_template(&self, name: &str) -> Option<PadTemplate>
fn pad_template(&self, name: &str) -> Option<PadTemplate>
Retrieves a padtemplate from
self with the given name. Read moresource§fn pad_template_list(&self) -> List<PadTemplate>
fn pad_template_list(&self) -> List<PadTemplate>
Retrieves a list of the pad templates associated with
self. The
list must not be modified by the calling code. Read moresource§fn message_full<T>(
&self,
type_: ElementMessageType,
code: T,
message: Option<&str>,
debug: Option<&str>,
file: &str,
function: &str,
line: u32,
)where
T: MessageErrorDomain,
fn message_full<T>(
&self,
type_: ElementMessageType,
code: T,
message: Option<&str>,
debug: Option<&str>,
file: &str,
function: &str,
line: u32,
)where
T: MessageErrorDomain,
Post an error, warning or info message on the bus from inside an element. Read more
fn set_element_flags(&self, flags: ElementFlags)
fn unset_element_flags(&self, flags: ElementFlags)
fn element_flags(&self) -> ElementFlags
source§fn message_full_with_details<T>(
&self,
type_: ElementMessageType,
code: T,
message: Option<&str>,
debug: Option<&str>,
file: &str,
function: &str,
line: u32,
structure: Structure,
)where
T: MessageErrorDomain,
fn message_full_with_details<T>(
&self,
type_: ElementMessageType,
code: T,
message: Option<&str>,
debug: Option<&str>,
file: &str,
function: &str,
line: u32,
structure: Structure,
)where
T: MessageErrorDomain,
Post an error, warning or info message on the bus from inside an element. Read more
fn post_error_message(&self, msg: ErrorMessage)
source§fn iterate_pads(&self) -> Iterator<Pad>
fn iterate_pads(&self) -> Iterator<Pad>
Retrieves an iterator of
self’s pads. The iterator should
be freed after usage. Also more specialized iterators exists such as
iterate_src_pads() or iterate_sink_pads(). Read moresource§fn iterate_sink_pads(&self) -> Iterator<Pad>
fn iterate_sink_pads(&self) -> Iterator<Pad>
Retrieves an iterator of
self’s sink pads. Read moresource§fn iterate_src_pads(&self) -> Iterator<Pad>
fn iterate_src_pads(&self) -> Iterator<Pad>
Retrieves an iterator of
self’s source pads. Read morefn pads(&self) -> Vec<Pad>
fn sink_pads(&self) -> Vec<Pad>
fn src_pads(&self) -> Vec<Pad>
fn num_pads(&self) -> u16
fn num_sink_pads(&self) -> u16
fn num_src_pads(&self) -> u16
source§fn add_property_deep_notify_watch(
&self,
property_name: Option<&str>,
include_value: bool,
) -> NotifyWatchId
fn add_property_deep_notify_watch( &self, property_name: Option<&str>, include_value: bool, ) -> NotifyWatchId
property_name Read moresource§fn add_property_notify_watch(
&self,
property_name: Option<&str>,
include_value: bool,
) -> NotifyWatchId
fn add_property_notify_watch( &self, property_name: Option<&str>, include_value: bool, ) -> NotifyWatchId
property_name Read moresource§fn remove_property_notify_watch(&self, watch_id: NotifyWatchId)
fn remove_property_notify_watch(&self, watch_id: NotifyWatchId)
watch_id Read moresource§fn query_convert<U>(&self, src_val: impl FormattedValue) -> Option<U>where
U: SpecificFormattedValueFullRange,
fn query_convert<U>(&self, src_val: impl FormattedValue) -> Option<U>where
U: SpecificFormattedValueFullRange,
fn query_convert_generic( &self, src_val: impl FormattedValue, dest_format: Format, ) -> Option<GenericFormattedValue>
source§fn query_duration<T>(&self) -> Option<T>where
T: SpecificFormattedValueIntrinsic,
fn query_duration<T>(&self) -> Option<T>where
T: SpecificFormattedValueIntrinsic,
Queries an element (usually top-level pipeline or playbin element) for the
total stream duration in nanoseconds. This query will only work once the
pipeline is prerolled (i.e. reached PAUSED or PLAYING state). The application
will receive an ASYNC_DONE message on the pipeline bus when that is the case. Read more
fn query_duration_generic( &self, format: Format, ) -> Option<GenericFormattedValue>
source§fn query_position<T>(&self) -> Option<T>where
T: SpecificFormattedValueIntrinsic,
fn query_position<T>(&self) -> Option<T>where
T: SpecificFormattedValueIntrinsic,
Queries an element (usually top-level pipeline or playbin element) for the
stream position in nanoseconds. This will be a value between 0 and the
stream duration (if the stream duration is known). This query will usually
only work once the pipeline is prerolled (i.e. reached PAUSED or PLAYING
state). The application will receive an ASYNC_DONE message on the pipeline
bus when that is the case. Read more
fn query_position_generic( &self, format: Format, ) -> Option<GenericFormattedValue>
source§fn seek<V>(
&self,
rate: f64,
flags: SeekFlags,
start_type: SeekType,
start: V,
stop_type: SeekType,
stop: impl CompatibleFormattedValue<V>,
) -> Result<(), BoolError>where
V: FormattedValue,
fn seek<V>(
&self,
rate: f64,
flags: SeekFlags,
start_type: SeekType,
start: V,
stop_type: SeekType,
stop: impl CompatibleFormattedValue<V>,
) -> Result<(), BoolError>where
V: FormattedValue,
Sends a seek event to an element. See
gst_event_new_seek() for the details of
the parameters. The seek event is sent to the element using
send_event(). Read moresource§fn seek_simple(
&self,
seek_flags: SeekFlags,
seek_pos: impl FormattedValue,
) -> Result<(), BoolError>
fn seek_simple( &self, seek_flags: SeekFlags, seek_pos: impl FormattedValue, ) -> Result<(), BoolError>
Simple API to perform a seek on the given element, meaning it just seeks
to the given position relative to the start of the stream. For more complex
operations like segment seeks (e.g. for looping) or changing the playback
rate or seeking relative to the last configured playback segment you should
use
seek(). Read moresource§fn call_async<F>(&self, func: F)
fn call_async<F>(&self, func: F)
Calls
func from another thread and passes user_data to it. This is to be
used for cases when a state change has to be performed from a streaming
thread, directly via ElementExt::set_state() or indirectly e.g. via SEEK
events. Read morefn call_async_future<F, T>( &self, func: F, ) -> Pin<Box<dyn Future<Output = T> + Send>>
source§fn current_running_time(&self) -> Option<ClockTime>
fn current_running_time(&self) -> Option<ClockTime>
Returns the running time of the element. The running time is the
element’s clock time minus its base time. Will return GST_CLOCK_TIME_NONE
if the element has no clock, or if its base time has not been set. Read more
source§fn current_clock_time(&self) -> Option<ClockTime>
fn current_clock_time(&self) -> Option<ClockTime>
Returns the current clock time of the element, as in, the time of the
element’s clock, or GST_CLOCK_TIME_NONE if there is no clock. Read more
source§fn request_pad_simple(&self, name: &str) -> Option<Pad>
fn request_pad_simple(&self, name: &str) -> Option<Pad>
The name of this function is confusing to people learning GStreamer.
request_pad_simple() aims at making it more explicit it is
a simplified ElementExt::request_pad(). Read moresource§fn link(&self, dest: &impl IsA<Element>) -> Result<(), BoolError>
fn link(&self, dest: &impl IsA<Element>) -> Result<(), BoolError>
Links
self to dest. The link must be from source to
destination; the other direction will not be tried. The function looks for
existing pads that aren’t linked yet. It will request new pads if necessary.
Such pads need to be released manually when unlinking.
If multiple links are possible, only one is established. Read moresource§fn link_filtered(
&self,
dest: &impl IsA<Element>,
filter: &Caps,
) -> Result<(), BoolError>
fn link_filtered( &self, dest: &impl IsA<Element>, filter: &Caps, ) -> Result<(), BoolError>
Links
self to dest using the given caps as filtercaps.
The link must be from source to
destination; the other direction will not be tried. The function looks for
existing pads that aren’t linked yet. It will request new pads if necessary.
If multiple links are possible, only one is established. Read moresource§fn link_pads(
&self,
srcpadname: Option<&str>,
dest: &impl IsA<Element>,
destpadname: Option<&str>,
) -> Result<(), BoolError>
fn link_pads( &self, srcpadname: Option<&str>, dest: &impl IsA<Element>, destpadname: Option<&str>, ) -> Result<(), BoolError>
Links the two named pads of the source and destination elements.
Side effect is that if one of the pads has no parent, it becomes a
child of the parent of the other element. If they have different
parents, the link fails. Read more
source§fn link_pads_filtered(
&self,
srcpadname: Option<&str>,
dest: &impl IsA<Element>,
destpadname: Option<&str>,
filter: &Caps,
) -> Result<(), BoolError>
fn link_pads_filtered( &self, srcpadname: Option<&str>, dest: &impl IsA<Element>, destpadname: Option<&str>, filter: &Caps, ) -> Result<(), BoolError>
Links the two named pads of the source and destination elements. Side effect
is that if one of the pads has no parent, it becomes a child of the parent of
the other element. If they have different parents, the link fails. If
caps
is not None, makes sure that the caps of the link is a subset of caps. Read moresource§fn link_pads_full(
&self,
srcpadname: Option<&str>,
dest: &impl IsA<Element>,
destpadname: Option<&str>,
flags: PadLinkCheck,
) -> Result<(), BoolError>
fn link_pads_full( &self, srcpadname: Option<&str>, dest: &impl IsA<Element>, destpadname: Option<&str>, flags: PadLinkCheck, ) -> Result<(), BoolError>
Links the two named pads of the source and destination elements.
Side effect is that if one of the pads has no parent, it becomes a
child of the parent of the other element. If they have different
parents, the link fails. Read more
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for Twhere
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source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere
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source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for Twhere
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>
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for Twhere
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>
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere
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>
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for Twhere
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>
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere
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>
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere
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>
source§impl<O> GObjectExtManualGst for O
impl<O> GObjectExtManualGst for O
fn set_property_from_str(&self, name: &str, value: &str)
source§impl<O> GstObjectExt for O
impl<O> GstObjectExt for O
source§fn add_control_binding(
&self,
binding: &impl IsA<ControlBinding>,
) -> Result<(), BoolError>
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 moresource§fn default_error(&self, error: &Error, debug: Option<&str>)
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 moresource§fn control_binding(&self, property_name: &str) -> Option<ControlBinding>
fn control_binding(&self, property_name: &str) -> Option<ControlBinding>
Gets the corresponding
ControlBinding for the property. This should be
unreferenced again after use. Read moresource§fn control_rate(&self) -> Option<ClockTime>
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 moresource§fn parent(&self) -> Option<Object>
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 moresource§fn path_string(&self) -> GString
fn path_string(&self) -> GString
Generates a string describing the path of
self in
the object hierarchy. Only useful (or used) for debugging. Read moresource§fn value(
&self,
property_name: &str,
timestamp: impl Into<Option<ClockTime>>,
) -> Option<Value>
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
source§fn has_active_control_bindings(&self) -> bool
fn has_active_control_bindings(&self) -> bool
Check if the
self has active controlled properties. Read moresource§fn remove_control_binding(&self, binding: &impl IsA<ControlBinding>) -> bool
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 moresource§fn set_control_binding_disabled(&self, property_name: &str, disabled: bool)
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 moresource§fn set_control_bindings_disabled(&self, disabled: bool)
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 moresource§fn set_control_rate(&self, control_rate: impl Into<Option<ClockTime>>)
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 moresource§fn set_parent(&self, parent: &impl IsA<Object>) -> Result<(), BoolError>
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 moresource§fn suggest_next_sync(&self) -> Option<ClockTime>
fn suggest_next_sync(&self) -> Option<ClockTime>
Returns a suggestion for timestamps where buffers should be split
to get best controller results. Read more
source§fn sync_values(&self, timestamp: ClockTime) -> Result<(), BoolError>
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 moresource§fn unparent(&self)
fn unparent(&self)
Clear the parent of
self, removing the associated reference.
This function decreases the refcount of self. Read morefn connect_parent_notify<F>(&self, f: F) -> SignalHandlerId
source§impl<O> GstObjectExtManual for O
impl<O> GstObjectExtManual for O
fn connect_deep_notify<F>(&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>
source§impl<T> IntoClosureReturnValue for T
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Converts
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if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moresource§impl<U> IsSubclassableExt for Uwhere
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impl<U> IsSubclassableExt for Uwhere
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fn parent_class_init<T>(class: &mut Class<U>)
fn parent_instance_init<T>(instance: &mut InitializingObject<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
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Returns
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fn object_class(&self) -> &Class<Object>
Returns the
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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)])
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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
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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
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
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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 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,
) -> SignalHandlerId
fn connect<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
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,
) -> SignalHandlerId
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Connect to the signal
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&self,
signal_name: &str,
after: bool,
callback: F,
) -> SignalHandlerId
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Connect to the signal
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F,
) -> SignalHandlerId
fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
Connect to the signal
signal_id on this object. Read moresource§unsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F,
) -> SignalHandlerId
unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
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,
) -> SignalHandlerId
unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
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
Self::emit but takes Value for the arguments.source§fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
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,
Emit signal by its name with details. Read more
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) -> SignalHandlerId
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
Connect to the
notify signal of the object. Read moresource§fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
Connect to the
notify signal of the object. Read moresource§unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F,
) -> SignalHandlerId
unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F, ) -> SignalHandlerId
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>
fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>
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
F: FnOnce() + 'static,
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
source§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,
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,
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<O> RTPBasePayloadExt for Owhere
O: IsA<RTPBasePayload>,
impl<O> RTPBasePayloadExt for Owhere
O: IsA<RTPBasePayload>,
source§fn allocate_output_buffer(
&self,
payload_len: u32,
pad_len: u8,
csrc_count: u8,
) -> Buffer
fn allocate_output_buffer( &self, payload_len: u32, pad_len: u8, csrc_count: u8, ) -> Buffer
Allocate a new
gst::Buffer with enough data to hold an RTP packet with
minimum csrc_count CSRCs, a payload length of payload_len and padding of
pad_len. If self has source-info true additional
CSRCs may be allocated and filled with RTP source information. Read moresource§fn source_count(&self, buffer: &Buffer) -> u32
fn source_count(&self, buffer: &Buffer) -> u32
Count the total number of RTP sources found in the meta of
buffer, which
will be automically added by allocate_output_buffer().
If source-info is false the count will be 0. Read moresource§fn is_source_info_enabled(&self) -> bool
fn is_source_info_enabled(&self) -> bool
Queries whether the payloader will add contributing sources (CSRCs) to the
RTP header from
GstRTPSourceMeta. Read moresource§fn push(&self, buffer: Buffer) -> Result<FlowSuccess, FlowError>
fn push(&self, buffer: Buffer) -> Result<FlowSuccess, FlowError>
Push
buffer to the peer element of the payloader. The SSRC, payload type,
seqnum and timestamp of the RTP buffer will be updated first. Read moresource§fn push_list(&self, list: BufferList) -> Result<FlowSuccess, FlowError>
fn push_list(&self, list: BufferList) -> Result<FlowSuccess, FlowError>
Push
list to the peer element of the payloader. The SSRC, payload type,
seqnum and timestamp of the RTP buffer will be updated first. Read moresource§fn set_source_info_enabled(&self, enable: bool)
fn set_source_info_enabled(&self, enable: bool)
Enable or disable adding contributing sources to RTP packets from
GstRTPSourceMeta. Read moresource§fn is_auto_header_extension(&self) -> bool
fn is_auto_header_extension(&self) -> bool
If enabled, the payloader will automatically try to enable all the
RTP header extensions provided in the src caps, saving the application
the need to handle these extensions manually using the
GstRTPBasePayload::request-extension: signal.
source§fn set_auto_header_extension(&self, auto_header_extension: bool)
fn set_auto_header_extension(&self, auto_header_extension: bool)
If enabled, the payloader will automatically try to enable all the
RTP header extensions provided in the src caps, saving the application
the need to handle these extensions manually using the
GstRTPBasePayload::request-extension: signal.
fn max_ptime(&self) -> i64
fn set_max_ptime(&self, max_ptime: i64)
source§fn set_min_ptime(&self, min_ptime: i64)
fn set_min_ptime(&self, min_ptime: i64)
Minimum duration of the packet data in ns (can’t go above MTU)
fn mtu(&self) -> u32
fn set_mtu(&self, mtu: u32)
source§fn is_onvif_no_rate_control(&self) -> bool
fn is_onvif_no_rate_control(&self) -> bool
Make the payloader timestamp packets according to the Rate-Control=no
behaviour specified in the ONVIF replay spec.
source§fn set_onvif_no_rate_control(&self, onvif_no_rate_control: bool)
fn set_onvif_no_rate_control(&self, onvif_no_rate_control: bool)
Make the payloader timestamp packets according to the Rate-Control=no
behaviour specified in the ONVIF replay spec.
source§fn is_perfect_rtptime(&self) -> bool
fn is_perfect_rtptime(&self) -> bool
Try to use the offset fields to generate perfect RTP timestamps. When this
option is disabled, RTP timestamps are generated from GST_BUFFER_PTS of
each payloaded buffer. The PTSes of buffers may not necessarily increment
with the amount of data in each input buffer, consider e.g. the case where
the buffer arrives from a network which means that the PTS is unrelated to
the amount of data. Because the RTP timestamps are generated from
GST_BUFFER_PTS this can result in RTP timestamps that also don’t increment
with the amount of data in the payloaded packet. To circumvent this it is
possible to set the perfect rtptime option enabled. When this option is
enabled the payloader will increment the RTP timestamps based on
GST_BUFFER_OFFSET which relates to the amount of data in each packet
rather than the GST_BUFFER_PTS of each buffer and therefore the RTP
timestamps will more closely correlate with the amount of data in each
buffer. Currently GstRTPBasePayload is limited to handling perfect RTP
timestamps for audio streams.
source§fn set_perfect_rtptime(&self, perfect_rtptime: bool)
fn set_perfect_rtptime(&self, perfect_rtptime: bool)
Try to use the offset fields to generate perfect RTP timestamps. When this
option is disabled, RTP timestamps are generated from GST_BUFFER_PTS of
each payloaded buffer. The PTSes of buffers may not necessarily increment
with the amount of data in each input buffer, consider e.g. the case where
the buffer arrives from a network which means that the PTS is unrelated to
the amount of data. Because the RTP timestamps are generated from
GST_BUFFER_PTS this can result in RTP timestamps that also don’t increment
with the amount of data in the payloaded packet. To circumvent this it is
possible to set the perfect rtptime option enabled. When this option is
enabled the payloader will increment the RTP timestamps based on
GST_BUFFER_OFFSET which relates to the amount of data in each packet
rather than the GST_BUFFER_PTS of each buffer and therefore the RTP
timestamps will more closely correlate with the amount of data in each
buffer. Currently GstRTPBasePayload is limited to handling perfect RTP
timestamps for audio streams.
fn pt(&self) -> u32
fn set_pt(&self, pt: u32)
source§fn ptime_multiple(&self) -> i64
fn ptime_multiple(&self) -> i64
Force buffers to be multiples of this duration in ns (0 disables)
source§fn set_ptime_multiple(&self, ptime_multiple: i64)
fn set_ptime_multiple(&self, ptime_multiple: i64)
Force buffers to be multiples of this duration in ns (0 disables)
source§fn is_scale_rtptime(&self) -> bool
fn is_scale_rtptime(&self) -> bool
Make the RTP packets’ timestamps be scaled with the segment’s rate
(corresponding to RTSP speed parameter). Disabling this property means
the timestamps will not be affected by the set delivery speed (RTSP speed). Read more
source§fn set_scale_rtptime(&self, scale_rtptime: bool)
fn set_scale_rtptime(&self, scale_rtptime: bool)
Make the RTP packets’ timestamps be scaled with the segment’s rate
(corresponding to RTSP speed parameter). Disabling this property means
the timestamps will not be affected by the set delivery speed (RTSP speed). Read more
fn seqnum(&self) -> u32
fn seqnum_offset(&self) -> i32
fn set_seqnum_offset(&self, seqnum_offset: i32)
source§fn is_source_info(&self) -> bool
fn is_source_info(&self) -> bool
Enable writing the CSRC field in allocated RTP header based on RTP source
information found in the input buffer’s
GstRTPSourceMeta.source§fn set_source_info(&self, source_info: bool)
fn set_source_info(&self, source_info: bool)
Enable writing the CSRC field in allocated RTP header based on RTP source
information found in the input buffer’s
GstRTPSourceMeta.fn ssrc(&self) -> u32
fn set_ssrc(&self, ssrc: u32)
source§fn stats(&self) -> Option<Structure>
fn stats(&self) -> Option<Structure>
Various payloader statistics retrieved atomically (and are therefore
synchroized with each other), these can be used e.g. to generate an
RTP-Info header. This property return a GstStructure named
application/x-rtp-payload-stats containing the following fields relating to
the last processed buffer and current state of the stream being payloaded: Read more
fn timestamp(&self) -> u32
fn timestamp_offset(&self) -> u32
fn set_timestamp_offset(&self, timestamp_offset: u32)
source§fn connect_add_extension<F: Fn(&Self, &RTPHeaderExtension) + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId
fn connect_add_extension<F: Fn(&Self, &RTPHeaderExtension) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
Add
ext as an extension for writing part of an RTP header extension onto
outgoing RTP packets. Read morefn emit_add_extension(&self, ext: &RTPHeaderExtension)
source§fn connect_clear_extensions<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId
fn connect_clear_extensions<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
Clear all RTP header extensions used by this payloader.
fn emit_clear_extensions(&self)
source§fn connect_request_extension<F: Fn(&Self, u32, &str) -> Option<RTPHeaderExtension> + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId
fn connect_request_extension<F: Fn(&Self, u32, &str) -> Option<RTPHeaderExtension> + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
The returned
ext must be configured with the correct ext_id and with the
necessary attributes as required by the extension implementation. Read morefn connect_auto_header_extension_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_max_ptime_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_min_ptime_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_mtu_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_onvif_no_rate_control_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_perfect_rtptime_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_pt_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_ptime_multiple_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_scale_rtptime_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_seqnum_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_seqnum_offset_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_source_info_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_ssrc_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_stats_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_timestamp_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn connect_timestamp_offset_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
source§impl<O> RTPBasePayloadExtManual for Owhere
O: IsA<RTPBasePayload>,
impl<O> RTPBasePayloadExtManual for Owhere
O: IsA<RTPBasePayload>,
source§fn set_outcaps(&self, s: Option<&StructureRef>) -> Result<(), BoolError>
fn set_outcaps(&self, s: Option<&StructureRef>) -> Result<(), BoolError>
Configure the output caps with the optional fields. Read more
fn extensions(&self) -> Vec<RTPHeaderExtension>
fn connect_extensions_notify<F: Fn(&Self) + Send + Sync + 'static>( &self, f: F, ) -> SignalHandlerId
fn sink_pad(&self) -> &Pad
fn src_pad(&self) -> &Pad
source§impl<T> StaticTypeExt for Twhere
T: StaticType,
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 T
impl<T> ToSendValue for T
source§fn to_send_value(&self) -> SendValue
fn to_send_value(&self) -> SendValue
Returns a
SendValue clone of self.