[]Struct gstreamer::DeviceProviderFactory

pub struct DeviceProviderFactory(_, _);

DeviceProviderFactory is used to create instances of device providers. A GstDeviceProviderfactory can be added to a Plugin as it is also a PluginFeature.

Use the DeviceProviderFactory::find and DeviceProviderFactory::get functions to create device provider instances or use DeviceProviderFactory::get_by_name as a convenient shortcut.

Implements

PluginFeatureExt, GstObjectExt, glib::object::ObjectExt

Methods

impl DeviceProviderFactory[src]

pub fn get(&self) -> Option<DeviceProvider>[src]

Returns the device provider of the type defined by the given device providerfactory.

Returns

the DeviceProvider or None if the device provider couldn't be created

pub fn get_device_provider_type(&self) -> Type[src]

Get the glib::Type for device providers managed by this factory. The type can only be retrieved if the device provider factory is loaded, which can be assured with PluginFeatureExt::load.

Returns

the glib::Type for device providers managed by this factory.

pub fn get_metadata(&self, key: &str) -> Option<GString>[src]

Get the metadata on self with key.

key

a key

Returns

the metadata with key on self or None when there was no metadata with the given key.

pub fn get_metadata_keys(&self) -> Vec<GString>[src]

Get the available keys for the metadata on self.

Returns

a None-terminated array of key strings, or None when there is no metadata. Free with g_strfreev when no longer needed.

pub fn has_classes(&self, classes: Option<&str>) -> bool[src]

Check if self matches all of the given classes

classes

a "/" separate list of classes to match, only match if all classes are matched

Returns

true if self matches or if classes is None.

pub fn has_classesv(&self, classes: &[&str]) -> bool[src]

Check if self matches all of the given classes

classes

a None terminated array of classes to match, only match if all classes are matched

Returns

true if self matches.

pub fn find(name: &str) -> Option<DeviceProviderFactory>[src]

Search for an device provider factory of the given name. Refs the returned device provider factory; caller is responsible for unreffing.

name

name of factory to find

Returns

DeviceProviderFactory if found, None otherwise

pub fn get_by_name(factoryname: &str) -> Option<DeviceProvider>[src]

Returns the device provider of the type defined by the given device provider factory.

factoryname

a named factory to instantiate

Returns

a DeviceProvider or None if unable to create device provider

pub fn list_get_device_providers(minrank: Rank) -> Vec<DeviceProviderFactory>[src]

Get a list of factories with a rank greater or equal to minrank. The list of factories is returned by decreasing rank.

minrank

Minimum rank

Returns

a glib::List of DeviceProviderFactory device providers. Use PluginFeature::list_free after usage.

Trait Implementations

impl Clone for DeviceProviderFactory

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

Performs copy-assignment from source. Read more

impl Eq for DeviceProviderFactory

impl Ord for DeviceProviderFactory

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

Compares and returns the maximum of two values. Read more

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

Compares and returns the minimum of two values. Read more

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval. Read more

impl Sync for DeviceProviderFactory[src]

impl Send for DeviceProviderFactory[src]

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

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

This method tests for !=.

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

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

This method tests less than (for self and other) and is used by the < operator. Read more

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

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

This method tests greater than (for self and other) and is used by the > operator. Read more

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl Debug for DeviceProviderFactory

impl Hash for DeviceProviderFactory

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

Feeds a slice of this type into the given [Hasher]. Read more

impl IsA<PluginFeature> for DeviceProviderFactory

impl IsA<Object> for DeviceProviderFactory

impl StaticType for DeviceProviderFactory

Blanket Implementations

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

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

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> Any for T where
    T: 'static + ?Sized
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impl<'a, T> ToGlibContainerFromSlice<'a, *mut GList> for T where
    T: GlibPtrDefault + ToGlibPtr<'a, <T as GlibPtrDefault>::GlibType>, 
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impl<'a, T> ToGlibContainerFromSlice<'a, *mut GArray> for T where
    T: GlibPtrDefault + ToGlibPtr<'a, <T as GlibPtrDefault>::GlibType>, 
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impl<'a, T> ToGlibContainerFromSlice<'a, *const GList> for T where
    T: GlibPtrDefault + ToGlibPtr<'a, <T as GlibPtrDefault>::GlibType>, 
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impl<T> Cast for T where
    T: ObjectType
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fn upcast<T>(self) -> T where
    Self: IsA<T>,
    T: ObjectType
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Upcasts an object to a superclass or interface T. Read more

fn upcast_ref<T>(&self) -> &T where
    Self: IsA<T>,
    T: ObjectType
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Upcasts an object to a reference of its superclass or interface T. Read more

fn downcast<T>(self) -> Result<T, Self> where
    Self: CanDowncast<T>,
    T: ObjectType
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Tries to downcast to a subclass or interface implementor T. Read more

fn downcast_ref<T>(&self) -> Option<&T> where
    Self: CanDowncast<T>,
    T: ObjectType
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Tries to downcast to a reference of its subclass or interface implementor T. Read more

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

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 downcast and upcast will do many checks at compile-time already. Read more

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

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 more

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

Casts to T unconditionally. Read more

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

Casts to &T unconditionally. Read more

impl<Super, Sub> CanDowncast<Sub> for Super where
    Sub: IsA<Super>,
    Super: IsA<Super>, 
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impl<T> ObjectExt for T where
    T: ObjectType
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impl<T> ToValue for T where
    T: SetValue + ?Sized
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impl<T> ToSendValue for T where
    T: ToValue + SetValue + Send + ?Sized
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