Struct Video
Source pub struct VideoSink { /* private fields */ }Expand description
Provides useful functions and a base class for video sinks.
GstVideoSink will configure the default base sink to drop frames that arrive later than 20ms as this is considered the default threshold for observing out-of-sync frames.
§Properties
§show-preroll-frame
Whether to show video frames during preroll. If set to false, video
frames will only be rendered in PLAYING state.
Readable | Writeable | Construct
BaseSink
§async
If set to true, the basesink will perform asynchronous state changes.
When set to false, the sink will not signal the parent when it prerolls.
Use this option when dealing with sparse streams or when synchronisation is
not required.
Readable | Writeable
§blocksize
The amount of bytes to pull when operating in pull mode.
Readable | Writeable
§enable-last-sample
Enable the last-sample property. If false, basesink doesn’t keep a
reference to the last buffer arrived and the last-sample property is always
set to None. This can be useful if you need buffers to be released as soon
as possible, eg. if you’re using a buffer pool.
Readable | Writeable
§last-sample
The last buffer that arrived in the sink and was used for preroll or for
rendering. This property can be used to generate thumbnails. This property
can be None when the sink has not yet received a buffer.
Readable
§max-bitrate
Control the maximum amount of bits that will be rendered per second. Setting this property to a value bigger than 0 will make the sink delay rendering of the buffers when it would exceed to max-bitrate.
Readable | Writeable
§max-lateness
Readable | Writeable
§processing-deadline
Maximum amount of time (in nanoseconds) that the pipeline can take for processing the buffer. This is added to the latency of live pipelines.
Readable | Writeable
§qos
Readable | Writeable
§render-delay
The additional delay between synchronisation and actual rendering of the media. This property will add additional latency to the device in order to make other sinks compensate for the delay.
Readable | Writeable
§stats
Various [gst_base::BaseSink][crate::gst_base::BaseSink] statistics. This property returns a gst::Structure
with name application/x-gst-base-sink-stats with the following fields:
- “average-rate” G_TYPE_DOUBLE average frame rate
- “dropped” G_TYPE_UINT64 Number of dropped frames
- “rendered” G_TYPE_UINT64 Number of rendered frames
Readable
§sync
Readable | Writeable
§throttle-time
The time to insert between buffers. This property can be used to control the maximum amount of buffers per second to render. Setting this property to a value bigger than 0 will make the sink create THROTTLE QoS events.
Readable | Writeable
§ts-offset
Controls the final synchronisation, a negative value will render the buffer earlier while a positive value delays playback. This property can be used to fix synchronisation in bad files.
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
GstBin::element-added or GstBin::element-removed signals on the parent to
achieve a similar effect.
Readable | Writeable
§Implements
VideoSinkExt, [trait@gst_base::prelude::BaseSinkExt], gst::prelude::ElementExt, gst::prelude::ObjectExt, [trait@glib::ObjectExt]
GLib type: GObject with reference counted clone semantics.
Implementations§
Trait Implementations§
Source§impl HasParamSpec for VideoSink
impl HasParamSpec for VideoSink
Source§impl<T: VideoSinkImpl> IsSubclassable<T> for VideoSink
impl<T: VideoSinkImpl> IsSubclassable<T> for VideoSink
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 VideoSink
impl Ord for VideoSink
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<OT: ObjectType> PartialEq<OT> for VideoSink
impl<OT: ObjectType> PartialEq<OT> for VideoSink
Source§impl<OT: ObjectType> PartialOrd<OT> for VideoSink
impl<OT: ObjectType> PartialOrd<OT> for VideoSink
Source§impl StaticType for VideoSink
impl StaticType for VideoSink
Source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl Eq for VideoSink
impl IsA<BaseSink> for VideoSink
impl IsA<Element> for VideoSink
impl IsA<Object> for VideoSink
impl Send for VideoSink
impl Sync for VideoSink
Auto Trait Implementations§
impl Freeze for VideoSink
impl RefUnwindSafe for VideoSink
impl Unpin for VideoSink
impl UnwindSafe for VideoSink
Blanket Implementations§
§impl<O> BaseSinkExt for Owhere
O: IsA<BaseSink>,
impl<O> BaseSinkExt for Owhere
O: IsA<BaseSink>,
§fn blocksize(&self) -> u32
fn blocksize(&self) -> u32
Get the number of bytes that the sink will pull when it is operating in pull
mode. Read more
§fn drops_out_of_segment(&self) -> bool
fn drops_out_of_segment(&self) -> bool
Checks if
self is currently configured to drop buffers which are outside
the current segment Read more§fn last_sample(&self) -> Option<Sample>
fn last_sample(&self) -> Option<Sample>
Get the last sample that arrived in the sink and was used for preroll or for
rendering. This property can be used to generate thumbnails. Read more
§fn max_bitrate(&self) -> u64
fn max_bitrate(&self) -> u64
Get the maximum amount of bits per second that the sink will render. Read more
§fn max_lateness(&self) -> i64
fn max_lateness(&self) -> i64
Gets the max lateness value. See [
set_max_lateness()][Self::set_max_lateness()] for
more details. Read more§fn processing_deadline(&self) -> ClockTime
fn processing_deadline(&self) -> ClockTime
Get the processing deadline of
self. see
[set_processing_deadline()][Self::set_processing_deadline()] for more information about
the processing deadline. Read more§fn render_delay(&self) -> ClockTime
fn render_delay(&self) -> ClockTime
Get the render delay of
self. see [set_render_delay()][Self::set_render_delay()] for more
information about the render delay. Read more§fn stats(&self) -> Structure
fn stats(&self) -> Structure
Return various [
BaseSink][crate::BaseSink] statistics. This function returns a gst::Structure
with name application/x-gst-base-sink-stats with the following fields: Read more§fn is_sync(&self) -> bool
fn is_sync(&self) -> bool
Checks if
self is currently configured to synchronize against the
clock. Read more§fn throttle_time(&self) -> u64
fn throttle_time(&self) -> u64
Get the time that will be inserted between frames to control the
maximum buffers per second. Read more
§fn set_blocksize(&self, blocksize: u32)
fn set_blocksize(&self, blocksize: u32)
Set the number of bytes that the sink will pull when it is operating in pull
mode. Read more
§fn set_drop_out_of_segment(&self, drop_out_of_segment: bool)
fn set_drop_out_of_segment(&self, drop_out_of_segment: bool)
Configure
self to drop buffers which are outside the current segment Read more§fn set_max_bitrate(&self, max_bitrate: u64)
fn set_max_bitrate(&self, max_bitrate: u64)
Set the maximum amount of bits per second that the sink will render. Read more
§fn set_max_lateness(&self, max_lateness: i64)
fn set_max_lateness(&self, max_lateness: i64)
Sets the new max lateness value to
max_lateness. This value is
used to decide if a buffer should be dropped or not based on the
buffer timestamp and the current clock time. A value of -1 means
an unlimited time. Read more§fn set_processing_deadline(&self, processing_deadline: ClockTime)
fn set_processing_deadline(&self, processing_deadline: ClockTime)
Maximum amount of time (in nanoseconds) that the pipeline can take
for processing the buffer. This is added to the latency of live
pipelines. Read more
§fn set_render_delay(&self, delay: ClockTime)
fn set_render_delay(&self, delay: ClockTime)
Set the render delay in
self to delay. The render delay is the time
between actual rendering of a buffer and its synchronisation time. Some
devices might delay media rendering which can be compensated for with this
function. Read more§fn set_throttle_time(&self, throttle: u64)
fn set_throttle_time(&self, throttle: u64)
Set the time that will be inserted between rendered buffers. This
can be used to control the maximum buffers per second that the sink
will render. Read more
§fn set_ts_offset(&self, offset: i64)
fn set_ts_offset(&self, offset: i64)
Adjust the synchronisation of
self with offset. A negative value will
render buffers earlier than their timestamp. A positive value will delay
rendering. This function can be used to fix playback of badly timestamped
buffers. Read more§fn wait(
&self,
time: impl Into<Option<ClockTime>>,
) -> (Result<FlowSuccess, FlowError>, i64)
fn wait( &self, time: impl Into<Option<ClockTime>>, ) -> (Result<FlowSuccess, FlowError>, i64)
This function will wait for preroll to complete and will then block until
time
is reached. It is usually called by subclasses that use their own internal
synchronisation but want to let some synchronization (like EOS) be handled
by the base class. Read more§fn wait_clock(&self, time: ClockTime) -> (Result<ClockSuccess, ClockError>, i64)
fn wait_clock(&self, time: ClockTime) -> (Result<ClockSuccess, ClockError>, i64)
This function will block until
time is reached. It is usually called by
subclasses that use their own internal synchronisation. Read more§fn wait_preroll(&self) -> Result<FlowSuccess, FlowError>
fn wait_preroll(&self) -> Result<FlowSuccess, FlowError>
If the
GstBaseSinkClass::render method performs its own synchronisation
against the clock it must unblock when going from PLAYING to the PAUSED state
and call this method before continuing to render the remaining data. Read more§fn enables_last_sample(&self) -> bool
fn enables_last_sample(&self) -> bool
§fn set_enable_last_sample(&self, enable_last_sample: bool)
fn set_enable_last_sample(&self, enable_last_sample: bool)
fn is_qos(&self) -> bool
fn set_qos(&self, qos: bool)
fn connect_async_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_blocksize_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_enable_last_sample_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_last_sample_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_max_bitrate_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_max_lateness_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_processing_deadline_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_qos_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_render_delay_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_stats_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_sync_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_throttle_time_notify<F>(&self, f: F) -> SignalHandlerId
fn connect_ts_offset_notify<F>(&self, f: F) -> SignalHandlerId
§impl<O> BaseSinkExtManual for Owhere
O: IsA<BaseSink>,
impl<O> BaseSinkExtManual for Owhere
O: IsA<BaseSink>,
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
T: ObjectType,
Self: IsA<T>,
fn upcast<T>(self) -> Twhere
T: ObjectType,
Self: IsA<T>,
Upcasts an object to a superclass or interface
T. Read moreSource§fn upcast_ref<T>(&self) -> &Twhere
T: ObjectType,
Self: IsA<T>,
fn upcast_ref<T>(&self) -> &Twhere
T: ObjectType,
Self: IsA<T>,
Upcasts an object to a reference of its superclass or interface
T. Read moreSource§fn downcast<T>(self) -> Result<T, Self>where
T: ObjectType,
Self: MayDowncastTo<T>,
fn downcast<T>(self) -> Result<T, Self>where
T: ObjectType,
Self: MayDowncastTo<T>,
Tries to downcast to a subclass or interface implementor
T. Read moreSource§fn downcast_ref<T>(&self) -> Option<&T>where
T: ObjectType,
Self: MayDowncastTo<T>,
fn downcast_ref<T>(&self) -> Option<&T>where
T: ObjectType,
Self: MayDowncastTo<T>,
Tries to downcast to a reference of its subclass or interface implementor
T. Read moreSource§fn dynamic_cast<T>(self) -> Result<T, Self>where
T: ObjectType,
fn dynamic_cast<T>(self) -> Result<T, Self>where
T: ObjectType,
Tries to cast to an object of type
T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while upcast will do many checks at compile-time already. downcast will
perform the same checks at runtime as dynamic_cast, but will also ensure some amount of
compile-time safety. Read moreSource§fn dynamic_cast_ref<T>(&self) -> Option<&T>where
T: ObjectType,
fn dynamic_cast_ref<T>(&self) -> Option<&T>where
T: ObjectType,
Tries to cast to reference to an object of type
T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read moreSource§unsafe fn unsafe_cast<T>(self) -> Twhere
T: ObjectType,
unsafe fn unsafe_cast<T>(self) -> Twhere
T: ObjectType,
Casts to
T unconditionally. Read moreSource§unsafe fn unsafe_cast_ref<T>(&self) -> &Twhere
T: ObjectType,
unsafe fn unsafe_cast_ref<T>(&self) -> &Twhere
T: ObjectType,
Casts to
&T unconditionally. Read moreSource§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
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 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>
Source§fn foreach_pad<F>(&self, func: F)
fn foreach_pad<F>(&self, func: F)
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<F>(&self, func: F)
fn foreach_sink_pad<F>(&self, func: F)
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<F>(&self, func: F)
fn foreach_src_pad<F>(&self, func: F)
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 morefn 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
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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
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Source§fn query_position<T>(&self) -> Option<T>where
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fn query_position<T>(&self) -> Option<T>where
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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
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&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
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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
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operations like segment seeks (e.g. for looping) or changing the playback
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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
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events. Read morefn call_async_future<F, T>( &self, func: F, ) -> Pin<Box<dyn Future<Output = T> + Send>>
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fn current_running_time(&self) -> Option<ClockTime>
Returns the running time of the element. The running time is the
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if the element has no clock, or if its base time has not been set. Read more
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fn current_clock_time(&self) -> Option<ClockTime>
Returns the current clock time of the element, as in, the time of the
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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
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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.
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&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
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unsafe fn from_glib_none_as_vec(ptr: *const GList) -> Vec<T>
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unsafe fn from_glib_none_as_vec(ptr: *const GPtrArray) -> Vec<T>
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T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
unsafe fn from_glib_none_as_vec(ptr: *const GSList) -> Vec<T>
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T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
unsafe fn from_glib_none_as_vec(ptr: *mut GList) -> Vec<T>
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unsafe fn from_glib_none_as_vec(ptr: *mut GPtrArray) -> Vec<T>
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Source§impl<O> GObjectExtManualGst for O
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Attach the
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Obtain the control-rate for this
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Retrieve previously set arbitrary data of this object with the given
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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,
) -> 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
fn connect_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_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F,
) -> SignalHandlerId
fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
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,
) -> 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<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.Source§impl<T> TransparentType for Twhere
T: TransparentPtrType,
impl<T> TransparentType for Twhere
T: TransparentPtrType,
type GlibType = <T as GlibPtrDefault>::GlibType
Source§impl<T> TryFromClosureReturnValue for Twhere
T: for<'a> FromValue<'a> + StaticType + 'static,
impl<T> TryFromClosureReturnValue for Twhere
T: for<'a> FromValue<'a> + StaticType + 'static,
Source§impl<O> VideoSinkExt for O
impl<O> VideoSinkExt for O
Source§fn shows_preroll_frame(&self) -> bool
fn shows_preroll_frame(&self) -> bool
Whether to show video frames during preroll. If set to
false, video
frames will only be rendered in PLAYING state.Source§fn set_show_preroll_frame(&self, show_preroll_frame: bool)
fn set_show_preroll_frame(&self, show_preroll_frame: bool)
Whether to show video frames during preroll. If set to
false, video
frames will only be rendered in PLAYING state.