[−][src]Struct gstreamer_base::BaseParse

pub struct BaseParse(_, _);

This base class is for parser elements that process data and splits it into separate audio/video/whatever frames.

It provides for:

provides one sink pad and one source pad
handles state changes
can operate in pull mode or push mode
handles seeking in both modes
handles events (SEGMENT/EOS/FLUSH)
handles queries (POSITION/DURATION/SEEKING/FORMAT/CONVERT)
handles flushing

The purpose of this base class is to provide the basic functionality of a parser and share a lot of rather complex code.

Description of the parsing mechanism:

Set-up phase

BaseParse calls BaseParseClass.start() to inform subclass that data processing is about to start now.
BaseParse class calls BaseParseClass.set_sink_caps() to inform the subclass about incoming sinkpad caps. Subclass could already set the srcpad caps accordingly, but this might be delayed until calling BaseParse::finish_frame with a non-queued frame.
At least at this point subclass needs to tell the BaseParse class how big data chunks it wants to receive (minimum frame size ). It can do this with BaseParseExt::set_min_frame_size.
BaseParse class sets up appropriate data passing mode (pull/push) and starts to process the data.

Parsing phase

BaseParse gathers at least min_frame_size bytes of data either by pulling it from upstream or collecting buffers in an internal Adapter.
A buffer of (at least) min_frame_size bytes is passed to subclass with BaseParseClass.handle_frame(). Subclass checks the contents and can optionally return gst::FlowReturn::Ok along with an amount of data to be skipped to find a valid frame (which will result in a subsequent DISCONT). If, otherwise, the buffer does not hold a complete frame, BaseParseClass.handle_frame() can merely return and will be called again when additional data is available. In push mode this amounts to an additional input buffer (thus minimal additional latency), in pull mode this amounts to some arbitrary reasonable buffer size increase.

Of course, BaseParseExt::set_min_frame_size could also be used if a very specific known amount of additional data is required. If, however, the buffer holds a complete valid frame, it can pass the size of this frame to BaseParse::finish_frame.

If acting as a converter, it can also merely indicate consumed input data while simultaneously providing custom output data. Note that baseclass performs some processing (such as tracking overall consumed data rate versus duration) for each finished frame, but other state is only updated upon each call to BaseParseClass.handle_frame() (such as tracking upstream input timestamp).

Subclass is also responsible for setting the buffer metadata (e.g. buffer timestamp and duration, or keyframe if applicable). (although the latter can also be done by BaseParse if it is appropriately configured, see below). Frame is provided with timestamp derived from upstream (as much as generally possible), duration obtained from configuration (see below), and offset if meaningful (in pull mode).

Note that BaseParseClass.handle_frame() might receive any small amount of input data when leftover data is being drained (e.g. at EOS).

As part of finish frame processing, just prior to actually pushing the buffer in question, it is passed to BaseParseClass.pre_push_frame() which gives subclass yet one last chance to examine buffer metadata, or to send some custom (tag) events, or to perform custom (segment) filtering.
During the parsing process BaseParseClass will handle both srcpad and sinkpad events. They will be passed to subclass if BaseParseClass.sink_event() or BaseParseClass.src_event() implementations have been provided.

Shutdown phase

BaseParse class calls BaseParseClass.stop() to inform the subclass that data parsing will be stopped.

Subclass is responsible for providing pad template caps for source and sink pads. The pads need to be named "sink" and "src". It also needs to set the fixed caps on srcpad, when the format is ensured (e.g. when base class calls subclass' BaseParseClass.set_sink_caps() function).

This base class uses gst::Format::Default as a meaning of frames. So, subclass conversion routine needs to know that conversion from gst::Format::Time to gst::Format::Default must return the frame number that can be found from the given byte position.

BaseParse uses subclasses conversion methods also for seeking (or otherwise uses its own default one, see also below).

Subclass start and stop functions will be called to inform the beginning and end of data processing.

Things that subclass need to take care of:

Provide pad templates
Fixate the source pad caps when appropriate
Inform base class how big data chunks should be retrieved. This is done with BaseParseExt::set_min_frame_size function.
Examine data chunks passed to subclass with BaseParseClass.handle_frame() and pass proper frame(s) to BaseParse::finish_frame, and setting src pad caps and timestamps on frame.
Provide conversion functions
Update the duration information with BaseParse::set_duration
Optionally passthrough using BaseParseExt::set_passthrough
Configure various baseparse parameters using BaseParseExt::set_average_bitrate, BaseParseExt::set_syncable and BaseParse::set_frame_rate.
In particular, if subclass is unable to determine a duration, but parsing (or specs) yields a frames per seconds rate, then this can be provided to BaseParse to enable it to cater for buffer time metadata (which will be taken from upstream as much as possible). Internally keeping track of frame durations and respective sizes that have been pushed provides BaseParse with an estimated bitrate. A default BaseParseClass.convert() (used if not overridden) will then use these rates to perform obvious conversions. These rates are also used to update (estimated) duration at regular frame intervals.

Implements

BaseParseExt, gst::ElementExt, gst::ObjectExt, glib::object::ObjectExt, BaseParseExtManual

Trait Implementations

`impl Clone for BaseParse`[src]

`fn clone(&self) -> BaseParse`[src]

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

`impl Debug for BaseParse`[src]

`fn fmt(&self, f: &mut Formatter<'_>) -> Result`[src]

`impl Eq for BaseParse`[src]

`impl Hash for BaseParse`[src]

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

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

`impl IsA<Element> for BaseParse`[src]

`impl IsA<Object> for BaseParse`[src]

`impl Ord for BaseParse`[src]

`fn cmp(&self, other: &BaseParse) -> Ordering`[src]

`#[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 BaseParse`[src]

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

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

`impl<T: ObjectType> PartialOrd<T> for BaseParse`[src]

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

`#[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 BaseParse`[src]

`impl StaticType for BaseParse`[src]

`fn static_type() -> Type`[src]

`impl Sync for BaseParse`[src]

Auto Trait Implementations

`impl RefUnwindSafe for BaseParse`

`impl Unpin for BaseParse`

`impl UnwindSafe for BaseParse`

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

`fn get_current_state(&self) -> State`[src]

`fn get_pending_state(&self) -> State`[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_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_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_properties( &self, property_values: &[(&str, &dyn ToValue)] ) -> Result<(), BoolError>`[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]

`unsafe fn set_qdata<QD>(&self, key: Quark, value: QD) where QD: 'static,` [src]

`unsafe fn get_qdata<QD>(&self, key: Quark) -> Option<&QD> where QD: 'static,` [src]

`unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD> where QD: 'static,` [src]

`unsafe fn set_data<QD>(&self, key: &str, value: QD) where QD: 'static,` [src]

`unsafe fn get_data<QD>(&self, key: &str) -> Option<&QD> where QD: 'static,` [src]

`unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD> where QD: 'static,` [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>) -> bool 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]

[−][src]Struct gstreamer_base::BaseParse

Description of the parsing mechanism:

Set-up phase

Parsing phase

Shutdown phase

Implements

Trait Implementations

impl Clone for BaseParse[src]

fn clone(&self) -> BaseParse[src]

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

impl Debug for BaseParse[src]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src]

impl Eq for BaseParse[src]

impl Hash for BaseParse[src]

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

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

impl IsA<Element> for BaseParse[src]

impl IsA<Object> for BaseParse[src]

impl Ord for BaseParse[src]

fn cmp(&self, other: &BaseParse) -> Ordering[src]

#[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 BaseParse[src]

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

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

impl<T: ObjectType> PartialOrd<T> for BaseParse[src]

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

#[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 BaseParse[src]

impl StaticType for BaseParse[src]

fn static_type() -> Type[src]

impl Sync for BaseParse[src]

Auto Trait Implementations

impl RefUnwindSafe for BaseParse

impl Unpin for BaseParse

impl UnwindSafe for BaseParse

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]