[][src]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, PluginFeatureExtManual

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[src]

impl Debug for DeviceProviderFactory[src]

impl Eq for DeviceProviderFactory[src]

impl Hash for DeviceProviderFactory[src]

impl IsA<Object> for DeviceProviderFactory[src]

impl IsA<PluginFeature> for DeviceProviderFactory[src]

impl Ord for DeviceProviderFactory[src]

impl<T: ObjectType> PartialEq<T> for DeviceProviderFactory[src]

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

impl Send for DeviceProviderFactory[src]

impl StaticType for DeviceProviderFactory[src]

impl Sync for DeviceProviderFactory[src]

Auto Trait Implementations

impl RefUnwindSafe for DeviceProviderFactory

impl Unpin for DeviceProviderFactory

impl UnwindSafe for DeviceProviderFactory

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<Super, Sub> CanDowncast<Sub> for Super where
    Sub: IsA<Super>,
    Super: IsA<Super>, 
[src]

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

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

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

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

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

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

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

type Owned = T

The resulting type after obtaining ownership.

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.