[−]Struct gstreamer_base::BaseTransform

pub struct BaseTransform(_, _);

This base class is for filter elements that process data. Elements that are suitable for implementation using BaseTransform are ones where the size and caps of the output is known entirely from the input caps and buffer sizes. These include elements that directly transform one buffer into another, modify the contents of a buffer in-place, as well as elements that collate multiple input buffers into one output buffer, or that expand one input buffer into multiple output buffers. See below for more concrete use cases.

It provides for:

one sinkpad and one srcpad
Possible formats on sink and source pad implemented with custom transform_caps function. By default uses same format on sink and source.
Handles state changes
Does flushing
Push mode
Pull mode if the sub-class transform can operate on arbitrary data

Use Cases

Passthrough mode

Element has no interest in modifying the buffer. It may want to inspect it, in which case the element should have a transform_ip function. If there is no transform_ip function in passthrough mode, the buffer is pushed intact.
The BaseTransformClass.passthrough_on_same_caps variable will automatically set/unset passthrough based on whether the element negotiates the same caps on both pads.
BaseTransformClass.passthrough_on_same_caps on an element that doesn't implement a transform_caps function is useful for elements that only inspect data (such as level)
Example elements
Level
Videoscale, audioconvert, videoconvert, audioresample in certain modes.

Modifications in-place - input buffer and output buffer are the same thing.

The element must implement a transform_ip function.
Output buffer size must <= input buffer size
If the always_in_place flag is set, non-writable buffers will be copied and passed to the transform_ip function, otherwise a new buffer will be created and the transform function called.
Incoming writable buffers will be passed to the transform_ip function immediately.
only implementing transform_ip and not transform implies always_in_place = true
Example elements:
Volume
Audioconvert in certain modes (signed/unsigned conversion)
videoconvert in certain modes (endianness swapping)

Modifications only to the caps/metadata of a buffer

The element does not require writable data, but non-writable buffers should be subbuffered so that the meta-information can be replaced.
Elements wishing to operate in this mode should replace the prepare_output_buffer method to create subbuffers of the input buffer and set always_in_place to true
Example elements
Capsfilter when setting caps on outgoing buffers that have none.
identity when it is going to re-timestamp buffers by datarate.

Normal mode

always_in_place flag is not set, or there is no transform_ip function
Element will receive an input buffer and output buffer to operate on.
Output buffer is allocated by calling the prepare_output_buffer function.
Example elements:
Videoscale, videoconvert, audioconvert when doing scaling/conversions

Special output buffer allocations

Elements which need to do special allocation of their output buffers beyond allocating output buffers via the negotiated allocator or buffer pool should implement the prepare_output_buffer method.
Example elements:
efence

Sub-class settable flags on GstBaseTransform

passthrough
Implies that in the current configuration, the sub-class is not interested in modifying the buffers.
Elements which are always in passthrough mode whenever the same caps has been negotiated on both pads can set the class variable passthrough_on_same_caps to have this behaviour automatically.
always_in_place
Determines whether a non-writable buffer will be copied before passing to the transform_ip function.
Implied true if no transform function is implemented.
Implied false if ONLY transform function is implemented.

Implements

BaseTransformExt, gst::ElementExt, gst::ObjectExt, glib::object::ObjectExt

Trait Implementations

`impl Clone for BaseTransform`

`fn clone(&self) -> BaseTransform`

`fn clone_from(&mut self, source: &Self)`1.0.0[src]

`impl Debug for BaseTransform`

`fn fmt(&self, f: &mut Formatter) -> Result`

`impl Eq for BaseTransform`

`impl Hash for BaseTransform`

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

`fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,` 1.3.0[src]

`impl IsA<Element> for BaseTransform`

`impl IsA<Object> for BaseTransform`

`impl Ord for BaseTransform`

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

`#[must_use] fn max(self, other: Self) -> Self`1.21.0[src]

`#[must_use] fn min(self, other: Self) -> Self`1.21.0[src]

`#[must_use] fn clamp(self, min: Self, max: Self) -> Self`[src]

`impl<T: ObjectType> PartialEq<T> for BaseTransform`

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

`#[must_use] fn ne(&self, other: &Rhs) -> bool`1.0.0[src]

`impl<T: ObjectType> PartialOrd<T> for BaseTransform`

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

`#[must_use] fn lt(&self, other: &Rhs) -> bool`1.0.0[src]

`#[must_use] fn le(&self, other: &Rhs) -> bool`1.0.0[src]

`#[must_use] fn gt(&self, other: &Rhs) -> bool`1.0.0[src]

`#[must_use] fn ge(&self, other: &Rhs) -> bool`1.0.0[src]

`impl Send for BaseTransform`[src]

`impl StaticType for BaseTransform`

`fn static_type() -> Type`

`impl Sync for BaseTransform`[src]

Auto Trait Implementations

`impl RefUnwindSafe for BaseTransform`

`impl Unpin for BaseTransform`

`impl UnwindSafe for BaseTransform`

Blanket Implementations

`impl<T> Any for T where T: 'static + ?Sized,` [src]

`fn type_id(&self) -> TypeId`[src]

`impl<T> Borrow<T> for T where T: ?Sized,` [src]

`fn borrow(&self) -> &T`[src]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src]

`fn borrow_mut(&mut self) -> &mut T`[src]

`impl<Super, Sub> CanDowncast for Super where Sub: IsA<Super>, Super: IsA<Super>,` [src]

`impl<T> Cast for T where T: ObjectType,` [src]

`fn upcast<T>(self) -> T where Self: IsA<T>, T: ObjectType,` [src]

`fn upcast_ref<T>(&self) -> &T where Self: IsA<T>, T: ObjectType,` [src]

`fn downcast<T>(self) -> Result<T, Self> where Self: CanDowncast<T>, T: ObjectType,` [src]

`fn downcast_ref<T>(&self) -> Option<&T> where Self: CanDowncast<T>, T: ObjectType,` [src]

`fn dynamic_cast<T>(self) -> Result<T, Self> where T: ObjectType,` [src]

`fn dynamic_cast_ref<T>(&self) -> Option<&T> where T: ObjectType,` [src]

`unsafe fn unsafe_cast<T>(self) -> T where T: ObjectType,` [src]

`unsafe fn unsafe_cast_ref<T>(&self) -> &T where T: ObjectType,` [src]

`impl<O> ElementExt for O where O: IsA<Element>,` [src]

`fn abort_state(&self)`[src]

`fn add_pad(&self, pad: &P) -> Result<(), BoolError> where P: IsA<Pad>,` [src]

`fn create_all_pads(&self)`[src]

`fn foreach_pad(&self, func: P) -> bool where P: FnMut(&Element, &Pad) -> bool,` [src]

`fn foreach_sink_pad(&self, func: P) -> bool where P: FnMut(&Element, &Pad) -> bool,` [src]

`fn foreach_src_pad(&self, func: P) -> bool where P: FnMut(&Element, &Pad) -> bool,` [src]

`fn get_base_time(&self) -> ClockTime`[src]

`fn get_bus(&self) -> Option<Bus>`[src]

`fn get_clock(&self) -> Option<Clock>`[src]

`fn get_compatible_pad(&self, pad: &P, caps: Option<&Caps>) -> Option<Pad> where P: IsA<Pad>,` [src]

`fn get_compatible_pad_template( &self, compattempl: &PadTemplate ) -> Option<PadTemplate>`[src]

`fn get_context(&self, context_type: &str) -> Option<Context>`[src]

`fn get_contexts(&self) -> Vec<Context>`[src]

`fn get_factory(&self) -> Option<ElementFactory>`[src]

`fn get_request_pad(&self, name: &str) -> Option<Pad>`[src]

`fn get_start_time(&self) -> ClockTime`[src]

`fn get_static_pad(&self, name: &str) -> Option<Pad>`[src]

`fn is_locked_state(&self) -> bool`[src]

`fn link(&self, dest: &P) -> Result<(), BoolError> where P: IsA<Element>,` [src]

`fn link_filtered( &self, dest: &P, filter: Option<&Caps> ) -> Result<(), BoolError> where P: IsA<Element>,` [src]

`fn link_pads( &self, srcpadname: Option<&str>, dest: &P, destpadname: Option<&str> ) -> Result<(), BoolError> where P: IsA<Element>,` [src]

`fn link_pads_filtered( &self, srcpadname: Option<&str>, dest: &P, destpadname: Option<&str>, filter: Option<&Caps> ) -> Result<(), BoolError> where P: IsA<Element>,` [src]

`fn link_pads_full( &self, srcpadname: Option<&str>, dest: &P, destpadname: Option<&str>, flags: PadLinkCheck ) -> Result<(), BoolError> where P: IsA<Element>,` [src]

`fn lost_state(&self)`[src]

`fn no_more_pads(&self)`[src]

`fn post_message(&self, message: &Message) -> Result<(), BoolError>`[src]

`fn provide_clock(&self) -> Option<Clock>`[src]

`fn release_request_pad(&self, pad: &P) where P: IsA<Pad>,` [src]

`fn remove_pad(&self, pad: &P) -> Result<(), BoolError> where P: IsA<Pad>,` [src]

`fn request_pad( &self, templ: &PadTemplate, name: Option<&str>, caps: Option<&Caps> ) -> Option<Pad>`[src]

`fn set_base_time(&self, time: ClockTime)`[src]

`fn set_bus(&self, bus: Option<&Bus>)`[src]

`fn set_clock(&self, clock: Option<&P>) -> Result<(), BoolError> where P: IsA<Clock>,` [src]

`fn set_context(&self, context: &Context)`[src]

`fn set_locked_state(&self, locked_state: bool) -> bool`[src]

`fn set_start_time(&self, time: ClockTime)`[src]

`fn sync_state_with_parent(&self) -> Result<(), BoolError>`[src]

`fn unlink(&self, dest: &P) where P: IsA<Element>,` [src]

`fn unlink_pads(&self, srcpadname: &str, dest: &P, destpadname: &str) where P: IsA<Element>,` [src]

`fn connect_no_more_pads<F>(&self, f: F) -> SignalHandlerId where F: 'static + Send + Sync + Fn(&O),` [src]

`fn connect_pad_added<F>(&self, f: F) -> SignalHandlerId where F: 'static + Send + Sync + Fn(&O, &Pad),` [src]

`fn connect_pad_removed<F>(&self, f: F) -> SignalHandlerId where F: 'static + Send + Sync + Fn(&O, &Pad),` [src]

`impl<O> ElementExtManual for O where O: IsA<Element>,` [src]

`fn get_element_class(&self) -> &ElementClass`[src]

`fn change_state( &self, transition: StateChange ) -> Result<StateChangeSuccess, StateChangeError>`[src]

`fn continue_state( &self, ret: StateChangeReturn ) -> Result<StateChangeSuccess, StateChangeError>`[src]

`fn get_state( &self, timeout: ClockTime ) -> (Result<StateChangeSuccess, StateChangeError>, State, State)`[src]

`fn set_state( &self, state: State ) -> Result<StateChangeSuccess, StateChangeError>`[src]

`fn query(&self, query: &mut QueryRef) -> bool`[src]

`fn send_event(&self, event: Event) -> bool`[src]

`fn get_metadata<'a>(&self, key: &str) -> Option<&'a str>`[src]

`fn get_pad_template(&self, name: &str) -> Option<PadTemplate>`[src]

`fn get_pad_template_list(&self) -> Vec<PadTemplate>`[src]

`fn set_element_flags(&self, flags: ElementFlags)`[src]

`fn unset_element_flags(&self, flags: ElementFlags)`[src]

`fn get_element_flags(&self) -> ElementFlags`[src]

`fn message_full<T>( &self, type_: ElementMessageType, code: T, message: Option<&str>, debug: Option<&str>, file: &str, function: &str, line: u32 ) where T: MessageErrorDomain,` [src]

`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,` [src]

`fn post_error_message(&self, msg: &ErrorMessage)`[src]

`fn iterate_pads(&self) -> Iterator<Pad>`[src]

`fn iterate_sink_pads(&self) -> Iterator<Pad>`[src]

`fn iterate_src_pads(&self) -> Iterator<Pad>`[src]

`fn get_pads(&self) -> Vec<Pad>`[src]

`fn get_sink_pads(&self) -> Vec<Pad>`[src]

`fn get_src_pads(&self) -> Vec<Pad>`[src]

`fn num_pads(&self) -> u16`[src]

`fn num_sink_pads(&self) -> u16`[src]

`fn num_src_pads(&self) -> u16`[src]

`fn add_property_deep_notify_watch( &self, property_name: Option<&str>, include_value: bool ) -> NotifyWatchId`[src]

`fn add_property_notify_watch( &self, property_name: Option<&str>, include_value: bool ) -> NotifyWatchId`[src]

`fn remove_property_notify_watch(&self, watch_id: NotifyWatchId)`[src]

`fn query_convert<V, U>(&self, src_val: V) -> Option where U: SpecificFormattedValue, V: Into<GenericFormattedValue>,` [src]

`fn query_convert_generic<V>( &self, src_val: V, dest_format: Format ) -> Option<GenericFormattedValue> where V: Into<GenericFormattedValue>,` [src]

`fn query_duration<T>(&self) -> Option<T> where T: SpecificFormattedValue,` [src]

`fn query_duration_generic( &self, format: Format ) -> Option<GenericFormattedValue>`[src]

`fn query_position<T>(&self) -> Option<T> where T: SpecificFormattedValue,` [src]

`fn query_position_generic( &self, format: Format ) -> Option<GenericFormattedValue>`[src]

`fn seek<V>( &self, rate: f64, flags: SeekFlags, start_type: SeekType, start: V, stop_type: SeekType, stop: V ) -> Result<(), BoolError> where V: Into<GenericFormattedValue>,` [src]

`fn seek_simple<V>( &self, seek_flags: SeekFlags, seek_pos: V ) -> Result<(), BoolError> where V: Into<GenericFormattedValue>,` [src]

`fn call_async<F>(&self, func: F) where F: FnOnce(&O) + Send + 'static,` [src]

`fn call_async_future<F, T>( &self, func: F ) -> Pin<Box<dyn Future<Output = T> + 'static + Send + Unpin>> where F: FnOnce(&O) -> T + Send + 'static, T: Send + 'static,` [src]

`fn get_current_running_time(&self) -> ClockTime`[src]

`fn get_current_clock_time(&self) -> ClockTime`[src]

`impl<T> From<T> for T`[src]

`fn from(t: T) -> T`[src]

`impl<O> GObjectExtManualGst for O where O: IsA<Object>,` [src]

`fn set_property_from_str(&self, name: &str, value: &str)`[src]

`impl<O> GstObjectExt for O where O: IsA<Object>,` [src]

`fn default_error(&self, error: &Error, debug: Option<&str>)`[src]

`fn get_control_rate(&self) -> ClockTime`[src]

`fn get_name(&self) -> GString`[src]

`fn get_parent(&self) -> Option<Object>`[src]

`fn get_path_string(&self) -> GString`[src]

`fn has_active_control_bindings(&self) -> bool`[src]

`fn has_ancestor(&self, ancestor: &P) -> bool where P: IsA<Object>,` [src]

`fn has_as_ancestor(&self, ancestor: &P) -> bool where P: IsA<Object>,` [src]

`fn has_as_parent(&self, parent: &P) -> bool where P: IsA<Object>,` [src]

`fn set_control_binding_disabled(&self, property_name: &str, disabled: bool)`[src]

`fn set_control_bindings_disabled(&self, disabled: bool)`[src]

`fn set_control_rate(&self, control_rate: ClockTime)`[src]

`fn set_name(&self, name: &str) -> Result<(), BoolError>`[src]

`fn set_parent(&self, parent: &P) -> Result<(), BoolError> where P: IsA<Object>,` [src]

`fn suggest_next_sync(&self) -> ClockTime`[src]

`fn sync_values(&self, timestamp: ClockTime) -> Result<(), BoolError>`[src]

`fn unparent(&self)`[src]

`fn connect_property_name_notify<F>(&self, f: F) -> SignalHandlerId where F: 'static + Send + Sync + Fn(&O),` [src]

`fn connect_property_parent_notify<F>(&self, f: F) -> SignalHandlerId where F: 'static + Send + Sync + Fn(&O),` [src]

`impl<O> GstObjectExtManual for O where O: IsA<Object>,` [src]

`fn connect_deep_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where F: 'static + Send + Sync + Fn(&O, &Object, &ParamSpec),` [src]

`fn set_object_flags(&self, flags: ObjectFlags)`[src]

`fn unset_object_flags(&self, flags: ObjectFlags)`[src]

`fn get_object_flags(&self) -> ObjectFlags`[src]

`impl<T, U> Into for T where U: From<T>,` [src]

`fn into(self) -> U`[src]

`impl<T> ObjectExt for T where T: ObjectType,` [src]

`fn is(&self) -> bool where U: StaticType,` [src]

`fn get_type(&self) -> Type`[src]

`fn get_object_class(&self) -> &ObjectClass`[src]

`fn set_property<'a, N>( &self, property_name: N, value: &dyn ToValue ) -> Result<(), BoolError> where N: Into<&'a str>,` [src]

`fn get_property<'a, N>(&self, property_name: N) -> Result<Value, BoolError> where N: Into<&'a str>,` [src]

`fn block_signal(&self, handler_id: &SignalHandlerId)`[src]

`fn unblock_signal(&self, handler_id: &SignalHandlerId)`[src]

`fn stop_signal_emission(&self, signal_name: &str)`[src]

`fn disconnect(&self, handler_id: SignalHandlerId)`[src]

`fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where F: 'static + Send + Sync + Fn(&T, &ParamSpec),` [src]

`unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerId where F: Fn(&T, &ParamSpec),` [src]

`fn notify<'a, N>(&self, property_name: N) where N: Into<&'a str>,` [src]

`fn notify_by_pspec(&self, pspec: &ParamSpec)`[src]

`fn has_property<'a, N>( &self, property_name: N, type_: Option<Type> ) -> Result<(), BoolError> where N: Into<&'a str>,` [src]

`fn get_property_type<'a, N>(&self, property_name: N) -> Option<Type> where N: Into<&'a str>,` [src]

`fn find_property<'a, N>(&self, property_name: N) -> Option<ParamSpec> where N: Into<&'a str>,` [src]

`fn list_properties(&self) -> Vec<ParamSpec>`[src]

`fn connect<'a, N, F>( &self, signal_name: N, after: bool, callback: F ) -> Result<SignalHandlerId, BoolError> where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static, N: Into<&'a str>,` [src]

`fn connect_local<'a, N, F>( &self, signal_name: N, after: bool, callback: F ) -> Result<SignalHandlerId, BoolError> where F: Fn(&[Value]) -> Option<Value> + 'static, N: Into<&'a str>,` [src]

`unsafe fn connect_unsafe<'a, N, F>( &self, signal_name: N, after: bool, callback: F ) -> Result<SignalHandlerId, BoolError> where F: Fn(&[Value]) -> Option<Value>, N: Into<&'a str>,` [src]

`fn emit<'a, N>( &self, signal_name: N, args: &[&dyn ToValue] ) -> Result<Option<Value>, BoolError> where N: Into<&'a str>,` [src]

`fn downgrade(&self) -> WeakRef<T>`[src]

`fn bind_property<'a, O, N, M>( &'a self, source_property: N, target: &'a O, target_property: M ) -> BindingBuilder<'a> where M: Into<&'a str>, N: Into<&'a str>, O: ObjectType,` [src]

`fn ref_count(&self) -> u32`[src]

`impl<'a, T> ToGlibContainerFromSlice<'a, *const GList> for T where T: GlibPtrDefault + ToGlibPtr<'a, <T as GlibPtrDefault>::GlibType>,` [src]

`type Storage = (Option<List>, Vec<Stash<'a, <T as GlibPtrDefault>::GlibType, T>>)`

`fn to_glib_none_from_slice( t: &'a [T] ) -> (const GList, <T as ToGlibContainerFromSlice<'a, const GList>>::Storage)`[src]

`fn to_glib_container_from_slice( _t: &'a [T] ) -> (const GList, <T as ToGlibContainerFromSlice<'a, const GList>>::Storage)`[src]

`fn to_glib_full_from_slice(_t: &[T]) -> *const GList`[src]

`impl<'a, T> ToGlibContainerFromSlice<'a, *const GPtrArray> for T where T: GlibPtrDefault + ToGlibPtr<'a, <T as GlibPtrDefault>::GlibType>,` [src]

`type Storage = (Option<PtrArray>, Vec<Stash<'a, <T as GlibPtrDefault>::GlibType, T>>)`

`fn to_glib_none_from_slice( t: &'a [T] ) -> (const GPtrArray, <T as ToGlibContainerFromSlice<'a, const GPtrArray>>::Storage)`[src]

`fn to_glib_container_from_slice( _t: &'a [T] ) -> (const GPtrArray, <T as ToGlibContainerFromSlice<'a, const GPtrArray>>::Storage)`[src]

`fn to_glib_full_from_slice(_t: &[T]) -> *const GPtrArray`[src]

`impl<'a, T> ToGlibContainerFromSlice<'a, *mut GArray> for T where T: GlibPtrDefault + ToGlibPtr<'a, <T as GlibPtrDefault>::GlibType>,` [src]

`type Storage = (Option<Array>, Vec<Stash<'a, <T as GlibPtrDefault>::GlibType, T>>)`

`fn to_glib_none_from_slice( t: &'a [T] ) -> (mut GArray, <T as ToGlibContainerFromSlice<'a, mut GArray>>::Storage)`[src]

`fn to_glib_container_from_slice( t: &'a [T] ) -> (mut GArray, <T as ToGlibContainerFromSlice<'a, mut GArray>>::Storage)`[src]

`fn to_glib_full_from_slice(t: &[T]) -> *mut GArray`[src]

`impl<'a, T> ToGlibContainerFromSlice<'a, *mut GList> for T where T: GlibPtrDefault + ToGlibPtr<'a, <T as GlibPtrDefault>::GlibType>,` [src]

`type Storage = (Option<List>, Vec<Stash<'a, <T as GlibPtrDefault>::GlibType, T>>)`

`fn to_glib_none_from_slice( t: &'a [T] ) -> (mut GList, <T as ToGlibContainerFromSlice<'a, mut GList>>::Storage)`[src]

`fn to_glib_container_from_slice( t: &'a [T] ) -> (mut GList, <T as ToGlibContainerFromSlice<'a, mut GList>>::Storage)`[src]

`fn to_glib_full_from_slice(t: &[T]) -> *mut GList`[src]

`impl<'a, T> ToGlibContainerFromSlice<'a, *mut GPtrArray> for T where T: GlibPtrDefault + ToGlibPtr<'a, <T as GlibPtrDefault>::GlibType>,` [src]

`type Storage = (Option<PtrArray>, Vec<Stash<'a, <T as GlibPtrDefault>::GlibType, T>>)`

`fn to_glib_none_from_slice( t: &'a [T] ) -> (mut GPtrArray, <T as ToGlibContainerFromSlice<'a, mut GPtrArray>>::Storage)`[src]

`fn to_glib_container_from_slice( t: &'a [T] ) -> (mut GPtrArray, <T as ToGlibContainerFromSlice<'a, mut GPtrArray>>::Storage)`[src]

`fn to_glib_full_from_slice(t: &[T]) -> *mut GPtrArray`[src]

`impl<T> ToOwned for T where T: Clone,` [src]

`type Owned = T`

The resulting type after obtaining ownership.

`fn to_owned(&self) -> T`[src]

`fn clone_into(&self, target: &mut T)`[src]

`impl<T> ToSendValue for T where T: ToValue + SetValue + Send + ?Sized,` [src]

`fn to_send_value(&self) -> SendValue`[src]

`impl<T> ToValue for T where T: SetValue + ?Sized,` [src]

`fn to_value(&self) -> Value`[src]

`fn to_value_type(&self) -> Type`[src]

`impl<T, U> TryFrom for T where U: Into<T>,` [src]

`type Error = Infallible`

The type returned in the event of a conversion error.

`fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>`[src]

`impl<T, U> TryInto for T where U: TryFrom<T>,` [src]

`type Error = >::Error`

The type returned in the event of a conversion error.

`fn try_into(self) -> Result<U, >::Error>`[src]

[−]Struct gstreamer_base::BaseTransform

Trait Implementations

impl Clone for BaseTransform

fn clone(&self) -> BaseTransform

fn clone_from(&mut self, source: &Self)1.0.0[src]

impl Debug for BaseTransform

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

impl Eq for BaseTransform

impl Hash for BaseTransform

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

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher, 1.3.0[src]

impl IsA<Element> for BaseTransform

impl IsA<Object> for BaseTransform

impl Ord for BaseTransform

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

#[must_use] fn max(self, other: Self) -> Self1.21.0[src]

#[must_use] fn min(self, other: Self) -> Self1.21.0[src]

#[must_use] fn clamp(self, min: Self, max: Self) -> Self[src]

impl<T: ObjectType> PartialEq<T> for BaseTransform

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

#[must_use] fn ne(&self, other: &Rhs) -> bool1.0.0[src]

impl<T: ObjectType> PartialOrd<T> for BaseTransform

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

#[must_use] fn lt(&self, other: &Rhs) -> bool1.0.0[src]

#[must_use] fn le(&self, other: &Rhs) -> bool1.0.0[src]

#[must_use] fn gt(&self, other: &Rhs) -> bool1.0.0[src]

#[must_use] fn ge(&self, other: &Rhs) -> bool1.0.0[src]

impl Send for BaseTransform[src]

impl StaticType for BaseTransform

fn static_type() -> Type

impl Sync for BaseTransform[src]

Auto Trait Implementations

impl RefUnwindSafe for BaseTransform

impl Unpin for BaseTransform

impl UnwindSafe for BaseTransform

Blanket Implementations

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

fn type_id(&self) -> TypeId[src]

impl<T> Borrow<T> for T where T: ?Sized, [src]

fn borrow(&self) -> &T[src]

impl<T> BorrowMut<T> for T where T: ?Sized, [src]

fn borrow_mut(&mut self) -> &mut T[src]

impl<Super, Sub> CanDowncast<Sub> for Super where Sub: IsA<Super>, Super: IsA<Super>, [src]

impl<T> Cast for T where T: ObjectType, [src]

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

fn upcast_ref<T>(&self) -> &T where Self: IsA<T>, T: ObjectType, [src]

fn downcast<T>(self) -> Result<T, Self> where Self: CanDowncast<T>, T: ObjectType, [src]

fn downcast_ref<T>(&self) -> Option<&T> where Self: CanDowncast<T>, T: ObjectType, [src]

fn dynamic_cast<T>(self) -> Result<T, Self> where T: ObjectType, [src]

fn dynamic_cast_ref<T>(&self) -> Option<&T> where T: ObjectType, [src]

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

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

impl<O> ElementExt for O where O: IsA<Element>, [src]

fn abort_state(&self)[src]

fn add_pad<P>(&self, pad: &P) -> Result<(), BoolError> where P: IsA<Pad>, [src]

fn create_all_pads(&self)[src]

fn foreach_pad<P>(&self, func: P) -> bool where P: FnMut(&Element, &Pad) -> bool, [src]

fn foreach_sink_pad<P>(&self, func: P) -> bool where P: FnMut(&Element, &Pad) -> bool, [src]

fn foreach_src_pad<P>(&self, func: P) -> bool where P: FnMut(&Element, &Pad) -> bool, [src]

fn get_base_time(&self) -> ClockTime[src]

fn get_bus(&self) -> Option<Bus>[src]

fn get_clock(&self) -> Option<Clock>[src]

fn get_compatible_pad<P>(&self, pad: &P, caps: Option<&Caps>) -> Option<Pad> where P: IsA<Pad>, [src]

fn get_compatible_pad_template( &self, compattempl: &PadTemplate) -> Option<PadTemplate>[src]

fn get_context(&self, context_type: &str) -> Option<Context>[src]

fn get_contexts(&self) -> Vec<Context>[src]

fn get_factory(&self) -> Option<ElementFactory>[src]

fn get_request_pad(&self, name: &str) -> Option<Pad>[src]

fn get_start_time(&self) -> ClockTime[src]

fn get_static_pad(&self, name: &str) -> Option<Pad>[src]

fn is_locked_state(&self) -> bool[src]

fn link<P>(&self, dest: &P) -> Result<(), BoolError> where P: IsA<Element>, [src]

fn link_filtered<P>( &self, dest: &P, filter: Option<&Caps>) -> Result<(), BoolError> where P: IsA<Element>, [src]

fn link_pads<P>( &self, srcpadname: Option<&str>, dest: &P, destpadname: Option<&str>) -> Result<(), BoolError> where P: IsA<Element>, [src]

fn link_pads_filtered<P>( &self, srcpadname: Option<&str>, dest: &P, destpadname: Option<&str>, filter: Option<&Caps>) -> Result<(), BoolError> where P: IsA<Element>, [src]

fn link_pads_full<P>( &self, srcpadname: Option<&str>, dest: &P, destpadname: Option<&str>, flags: PadLinkCheck) -> Result<(), BoolError> where P: IsA<Element>, [src]

fn lost_state(&self)[src]

fn no_more_pads(&self)[src]

fn post_message(&self, message: &Message) -> Result<(), BoolError>[src]

fn provide_clock(&self) -> Option<Clock>[src]